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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.482 by root, Sun Oct 11 05:31:54 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
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
28		65
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
30	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
31		70
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
33		79
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
		84
		85	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
		88	our %EXT_CORO = (); # coroutines bound to extensions
		89	our %EXT_MAP = (); # pluggable maps
39		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	92	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
42		95
43	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	114	our $NEXT_TICK;
46	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod match mapscript);
47		123
48	our %CFG;	124	our %CFG;
49		125
50	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
52		129
53	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	132	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	133
57	our %EXT_CORO; # coroutines bound to extensions	134	# used to convert map paths into valid unix filenames by replacing / by ∕
		135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
58		146
59	binmode STDOUT;	147	binmode STDOUT;
60	binmode STDERR;	148	binmode STDERR;
61		149
62	# read virtual server time, if available	150	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
64	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
65	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
66	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
67	}	155	}
68		156
69	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
70	mkdir cf::localdir . "/" . cf::playerdir;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		158
75	# a special map that is always available	159	mkdir $_
76	our $LINK_MAP;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		161
77	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		176
79	#############################################################################	177	#############################################################################
80		178
81	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
82		180
…		…
89	=item $cf::RUNTIME	187	=item $cf::RUNTIME
90		188
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	190	every server tick.
93		191
94	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		195
96	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
98		200
99	=item $cf::NOW	201	=item $cf::NOW
100		202
101	The time of the last (current) server tick.	203	The time of the last (current) server tick.
102		204
103	=item $cf::TICK	205	=item $cf::TICK
104		206
105	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
106		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
107	=item %cf::CFG	219	=item %cf::CFG
108		220
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	222	from wherever your confdir points to.
111		223
		224	=item cf::wait_for_tick, cf::wait_for_tick_begin
		225
		226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		227	returns directly I<after> the tick processing (and consequently, can only wake one process
		228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
112	=back	242	=back
113		243
114	=cut	244	=cut
115		245
116	BEGIN {	246	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	247	my $msg = join "", @_;
119	utf8::encode $msg;
120		248
121	$msg .= "\n"	249	$msg .= "\n"
122	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
123		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
124	LOG llevError, $msg;	254	LOG llevError, $msg;
125	};	255	};
126	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
127		270
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		278
135	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	280	# within the Safe compartment.
137	for my $pkg (qw(	281	for my $pkg (qw(
138	cf::global cf::attachable	282	cf::global cf::attachable
139	cf::object cf::object::player	283	cf::object cf::object::player
140	cf::client cf::player	284	cf::client cf::player
141	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
142	cf::map cf::party cf::region	287	cf::party cf::region
143	)) {	288	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	290	}
147		291
148	$Event::DIED = sub {	292	$EV::DIED = sub {
149	warn "error in event callback: @_";	293	warn "error in event callback: @_";
150	};	294	};
151		295
152	my %ext_pkg;	296	#############################################################################
153	my @exts;
154	my @hook;
155		297
156	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
157		299
158	=over 4	300	=over 4
159		301
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	321	$d
180	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
181	}	323	}
182		324
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
186		326
187	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
188		328
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
197		330
198	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
199		332
200	=cut	333	=cut
201		334
202	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
204	JSON::Syck::Dump $_[0]	337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
205	}	352	}
206		353
207	=item cf::lock_wait $string	354	=item cf::lock_wait $string
208		355
209	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
210		357
211	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
212		359
213	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
214	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
216	returned.	363	returned.
217		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
218	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
220		370
221	=cut	371	=item $locked = cf::lock_active $string
222		372
223	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
224		378
225	sub lock_wait($) {	379	sub lock_wait($) {
226	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	381	}
234		382
235	sub lock_acquire($) {	383	sub lock_acquire($) {
236	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
237		386
238	# wait, to be sure we are not locked	387	sub lock_active($) {
239	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
240
241	$LOCK{$key} = [];
242
243	Coro::guard {
244	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };
246	}
247	}	389	}
248		390
249	sub freeze_mainloop {	391	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
251		393
252	my $guard = Coro::guard { $TICK_WATCHER->start };	394	&Guard::guard (\&tick_inhibit_dec);
253	$TICK_WATCHER->stop;	395	}
254	$guard	396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
		455	}
		456	};
		457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
255	}	470	}
256		471
257	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
258		473
259	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		479
265	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
266		481
267	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
268		483
269	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
272		488
273	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
276	fast or be very important.	492	fast or be very important.
…		…
279		495
280	sub sync_job(&) {	496	sub sync_job(&) {
281	my ($job) = @_;	497	my ($job) = @_;
282		498
283	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
284	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
286		504
287	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
288	# (but this is cancel-safe)	506
289	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
290		508
291	my $busy = 1;	509	my $busy = 1;
292	my @res;	510	my @res;
293		511
294	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	514	@res = eval { $job->() };
296	warn $@ if $@;	515	warn $@ if $@;
297	undef $busy;	516	undef $busy;
298	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
299		518
300	while ($busy) {	519	while ($busy) {
301	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
302	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
303		530
304	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
305	} else {	532	} else {
306	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
307		534
…		…
309	}	536	}
310	}	537	}
311		538
312	=item $coro = cf::async_ext { BLOCK }	539	=item $coro = cf::async_ext { BLOCK }
313		540
314	Like async, but this coro is automcatially being canceled when the	541	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	542	extension calling this is being unloaded.
316		543
317	=cut	544	=cut
318		545
319	sub async_ext(&) {	546	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
328		555
329	$coro	556	$coro
330	}	557	}
331		558
332	sub write_runtime {	559	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		560
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	561	Executes the given code block with the given arguments in a seperate
336	or return;	562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
337		565
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	566	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		567
342	aio_fsync $fh	568	sub fork_call(&@) {
343	and return;	569	my ($cb, @args) = @_;
344		570
345	close $fh	571	# we seemingly have to make a local copy of the whole thing,
346	or return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
347		574
348	aio_rename "$runtime~", $runtime	575	my @res = Coro::Util::fork_eval {
349	and return;	576	reset_signals;
		577	&$cb
		578	}, @args;
350		579
		580	wantarray ? @res : $res[-1]
		581	}
		582
		583	=item $coin = coin_from_name $name
		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
351	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
		735	}
		736
		737	=item cf::datalog type => key => value, ...
		738
		739	Log a datalog packet of the given type with the given key-value pairs.
		740
		741	=cut
		742
		743	sub datalog($@) {
		744	my ($type, %kv) = @_;
		745	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	746	}
353		747
354	=back	748	=back
355		749
356	=cut	750	=cut
357		751
358	#############################################################################	752	#############################################################################
359		753
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479
480	#############################################################################
481
482	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
483		755
484	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
485	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
487		759
488	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
489	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	762	Deliantra).
491		763
492	=over 4	764	=over 4
493		765
494	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
495		767
…		…
539	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
540		812
541	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
542	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
543		815
544	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
545	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
546		818
547	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
548		820
549	=over 4	821	=over 4
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	881	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	882	our @CB_MAP = ();
611		883
612	my %attachment;	884	my %attachment;
613		885
		886	sub cf::attachable::thawer_merge {
		887	# simply override everything except _meta
		888	local $_[0]{_meta};
		889	%{$_[0]} = %{$_[1]};
		890	}
		891
614	sub _attach_cb($$$$) {	892	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	893	my ($registry, $event, $prio, $cb) = @_;
616		894
617	use sort 'stable';	895	use sort 'stable';
618		896
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
653		931
654	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		936
659	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	938	my $pkg = shift @arg;
661		939
662	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
692	}	970	}
693		971
694	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
695	} else {	973	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	975	}
698		976
699	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
700	}	978	}
701		979
…		…
703	if (ref $_[0]) {	981	if (ref $_[0]) {
704	_object_attach @_;	982	_object_attach @_;
705	} else {	983	} else {
706	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
707	}	985	}
		986	_recalc_want;
708	};	987	};
709		988
710	# all those should be optimised	989	# all those should be optimised
711	sub cf::attachable::detach {	990	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
716	reattach ($obj);	995	reattach ($obj);
717	} else {	996	} else {
718	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
719	}	998	}
		999	_recalc_want;
720	};	1000	};
721		1001
722	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
724		1004
…		…
739	";	1019	";
740	die if $@;	1020	die if $@;
741	}	1021	}
742		1022
743	our $override;	1023	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		1025
746	sub override {	1026	sub override {
747	$override = 1;	1027	$override = 1;
748	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
749	}	1029	}
750		1030
751	sub do_invoke {	1031	sub do_invoke {
752	my $event = shift;	1032	my $event = shift;
753	my $callbacks = shift;	1033	my $callbacks = shift;
754		1034
755	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
756		1036
757	local $override;	1037	local $override;
758		1038
759	for (@$callbacks) {	1039	for (@$callbacks) {
760	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
769	}	1049	}
770		1050
771	0	1051	0
772	}	1052	}
773		1053
774	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
775		1055
776	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
777		1057
778	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
779		1059
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
781	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		1063
784	=back	1064	=back
785		1065
786	=cut	1066	=cut
787		1067
788	#############################################################################	1068	#############################################################################
789	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
790		1112
791	sub reattach {	1113	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1115	my ($obj) = @_;
		1116
		1117	# no longer needed after getting rid of delete_package?
		1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1119
795	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
796		1121
797	@$registry = ();	1122	@$registry = ();
798		1123
…		…
813	cf::attachable->attach (	1138	cf::attachable->attach (
814	prio => -1000000,	1139	prio => -1000000,
815	on_instantiate => sub {	1140	on_instantiate => sub {
816	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
817		1142
818	$data = from_json $data;	1143	$data = decode_json $data;
819		1144
820	for (@$data) {	1145	for (@$data) {
821	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
822		1147
823	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1164	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
841		1166
842	sync_job {	1167	sync_job {
843	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
846		1172
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1176	if ($cf::USE_FSYNC) {
		1177	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;
850	aio_fsync $fh;	1178	aio_fsync $fh;
		1179	}
851	close $fh;	1180	aio_close $fh;
852		1181
853	if (@$objs) {	1182	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
		1187	if ($cf::USE_FSYNC) {
		1188	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;
858	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
859	close $fh;	1191	aio_close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
861	}	1193	}
862	} else {	1194	} else {
863	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
864	}	1196	}
865		1197
866	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
867	} else {	1202	} else {
868	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
869	}	1204	}
870	} else {	1205	} else {
871	aio_unlink $filename;	1206	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
873	}	1208	}
874	}	1209	};
875	}	1210	}
876		1211
877	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
879		1214
…		…
891	or return;	1226	or return;
892		1227
893	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
895	or return;	1230	or return;
		1231
896	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
897	}	1234	}
898		1235
		1236	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
901	return ($data, $av);	1240	($data, $av)
902	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
903		1248
904	#############################################################################	1249	#############################################################################
905	# command handling &c	1250	# command handling &c
906		1251
907	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1266	}
922		1267
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1269
925	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
926		1275
927	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
928	called.	1277	called.
929		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
930	=cut	1290	=cut
931		1291
932	sub register_extcmd {	1292	sub register_extcmd {
933	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
934		1294
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1295	$EXTCMD{$name} = $cb;
939	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
940		1305
941	cf::player->attach (	1306	cf::player->attach (
942	on_command => sub {	1307	on_command => sub {
943	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
944		1309
…		…
952	cf::override;	1317	cf::override;
953	},	1318	},
954	on_extcmd => sub {	1319	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
956		1321
957	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1323
959	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
965	} else {	1339	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1341	}
968		1342
969	cf::override;	1343	cf::override;
970	},	1344	},
971	);	1345	);
972		1346
973	sub register {	1347	# "readahead" all extensions
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	1348	sub cache_extensions {
980	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
981		1350
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
983	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
984	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}	1354	}
1032	}	1355	};
1033		1356
1034	# remove extcmds	1357	$grp
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}	1358	}
1048		1359
1049	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
1050	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1365	next unless -r $path;
1052	eval {	1366
1053	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
1054	1	1423	}
1055	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
1056	}	1429	};
1057	}	1430	}
1058		1431
1059	#############################################################################	1432	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1433
1062	*cf::mapsupport::on_clean = sub {	1434	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1435
1097	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
1098		1437
1099	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
1100		1439
1101	=cut	1440	=cut
1102		1441
1103	package cf::player;	1442	package cf::player;
1104		1443
…		…
1106		1445
1107	=head3 cf::player	1446	=head3 cf::player
1108		1447
1109	=over 4	1448	=over 4
1110		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
1111	=item cf::player::find $login	1464	=item cf::player::find $login
1112		1465
1113	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
1114		1467
1115	=cut	1468	=cut
1116		1469
1117	sub playerdir($) {	1470	sub playerdir($) {
1118	cf::localdir	1471	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1473	}
1124		1474
1125	sub path($) {	1475	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1477
1128	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
1129	}	1479	}
1130		1480
1131	sub find_active($) {	1481	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
1136		1486
1137	sub exists($) {	1487	sub exists($) {
1138	my ($login) = @_;	1488	my ($login) = @_;
1139		1489
1140	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1491	or !aio_stat path $login
1142	}	1492	}
1143		1493
1144	sub find($) {	1494	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1496	my $login = $_[0];
1147		1497
1148	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
1149		1499
1150	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1501	# rename old playerfiles to new ones
		1502	#TODO: remove when no longer required
		1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1506	aio_unlink +(playerdir $login) . "/$login.pl";
		1507
		1508	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
1154	}	1517	}
1155	}	1518	}
1156	}	1519	}
1157		1520
…		…
1166	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1167		1530
1168	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1170		1533
		1534	cf::get_slot 0.01;
		1535
1171	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1172	Coro::cede;	1537	cf::cede_to_tick;
1173	}	1538	}
1174		1539
1175	sub new($) {	1540	sub new($) {
1176	my ($login) = @_;	1541	my ($login) = @_;
1177		1542
…		…
1183	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1184		1549
1185	$self	1550	$self
1186	}	1551	}
1187		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1188	=item $pl->quit_character	1563	=item $pl->quit_character
1189		1564
1190	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1192		1567
1193	=cut	1568	=cut
1194		1569
1195	sub quit_character {	1570	sub quit_character {
1196	my ($pl) = @_;	1571	my ($pl) = @_;
1197		1572
		1573	my $name = $pl->ob->name;
		1574
1198	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1200		1577
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1202	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1203	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1204	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1205		1584
1206	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1589	$pl->destroy;
		1590
		1591	my $prefix = qr<^~\Q$name\E/>;
		1592
		1593	# nuke player maps
		1594	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1595
1211	IO::AIO::aio_rmtree $temp;	1596	IO::AIO::aio_rmtree $temp;
		1597	}
		1598
		1599	=item $pl->kick
		1600
		1601	Kicks a player out of the game. This destroys the connection.
		1602
		1603	=cut
		1604
		1605	sub kick {
		1606	my ($pl, $kicker) = @_;
		1607
		1608	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1609	$pl->killer ("kicked");
		1610	$pl->ns->destroy;
1212	}	1611	}
1213		1612
1214	=item cf::player::list_logins	1613	=item cf::player::list_logins
1215		1614
1216	Returns am arrayref of all valid playernames in the system, can take a	1615	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1218		1617
1219	=cut	1618	=cut
1220		1619
1221	sub list_logins {	1620	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1622	or return [];
1224		1623
1225	my @logins;	1624	my @logins;
1226		1625
1227	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1231		1636
1232	utf8::decode $login;	1637	utf8::decode $login;
1233	push @logins, $login;	1638	push @logins, $login;
1234	}	1639	}
1235		1640
1236	\@logins	1641	\@logins
1237	}	1642	}
1238		1643
1239	=item $player->maps	1644	=item $player->maps
1240		1645
1241	Returns an arrayref of cf::path's of all maps that are private for this	1646	Returns an arrayref of map paths that are private for this
1242	player. May block.	1647	player. May block.
1243		1648
1244	=cut	1649	=cut
1245		1650
1246	sub maps($) {	1651	sub maps($) {
1247	my ($pl) = @_;	1652	my ($pl) = @_;
		1653
		1654	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1655
1249	my $files = aio_readdir playerdir $pl	1656	my $files = aio_readdir playerdir $pl
1250	or return;	1657	or return;
1251		1658
1252	my @paths;	1659	my @paths;
1253		1660
1254	for (@$files) {	1661	for (@$files) {
1255	utf8::decode $_;	1662	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1663	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1664	next unless /^$PATH_SEP/o;
1258		1665
1259	s/$PATH_SEP/\//g;	1666	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1667	}
1262		1668
1263	\@paths	1669	\@paths
1264	}	1670	}
1265		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1267		1677
1268	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1269		1679
1270	=cut	1680	=cut
1271		1681
1272	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1274		1684
1275	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1686	}
1279		1687
1280	package cf;	1688	=item $player->ext_msg ($type, @msg)
		1689
		1690	Sends an ext event to the client.
		1691
		1692	=cut
		1693
		1694	sub ext_msg($$@) {
		1695	my ($self, $type, @msg) = @_;
		1696
		1697	$self->ns->ext_msg ($type, @msg);
		1698	}
		1699
		1700	=head3 cf::region
		1701
		1702	=over 4
		1703
		1704	=cut
		1705
		1706	package cf::region;
		1707
		1708	=item cf::region::find_by_path $path
		1709
		1710	Tries to decuce the likely region for a map knowing only its path.
		1711
		1712	=cut
		1713
		1714	sub find_by_path($) {
		1715	my ($path) = @_;
		1716
		1717	my ($match, $specificity);
		1718
		1719	for my $region (list) {
		1720	if ($region->{match} && $path =~ $region->{match}) {
		1721	($match, $specificity) = ($region, $region->specificity)
		1722	if $region->specificity > $specificity;
		1723	}
		1724	}
		1725
		1726	$match
		1727	}
1281		1728
1282	=back	1729	=back
1283
1284		1730
1285	=head3 cf::map	1731	=head3 cf::map
1286		1732
1287	=over 4	1733	=over 4
1288		1734
…		…
1291	package cf::map;	1737	package cf::map;
1292		1738
1293	use Fcntl;	1739	use Fcntl;
1294	use Coro::AIO;	1740	use Coro::AIO;
1295		1741
		1742	use overload
		1743	'""' => \&as_string,
		1744	fallback => 1;
		1745
1296	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1298		1748
1299	sub generate_random_map {	1749	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1301		1753
1302	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1755	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1759	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1760	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1761	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1762	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1763	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1764	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1765	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1766	(cf::region::find $rmp->{region}), $rmp->{custom}
		1767	)
1316	}	1768	}
1317		1769
1318	# and all this just because we cannot iterate over	1770	=item cf::map->register ($regex, $prio)
1319	# all maps in C++...
1320	sub change_all_map_light {
1321	my ($change) = @_;
1322		1771
1323	$_->change_map_light ($change)	1772	Register a handler for the map path matching the given regex at the
1324	for grep $_->outdoor, values %cf::MAP;	1773	givne priority (higher is better, built-in handlers have priority 0, the
1325	}	1774	default).
1326		1775
1327	sub try_load_header($) {	1776	=cut
		1777
		1778	sub register {
		1779	my (undef, $regex, $prio) = @_;
		1780	my $pkg = caller;
		1781
		1782	no strict;
		1783	push @{"$pkg\::ISA"}, __PACKAGE__;
		1784
		1785	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1786	}
		1787
		1788	# also paths starting with '/'
		1789	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1790
		1791	sub thawer_merge {
		1792	my ($self, $merge) = @_;
		1793
		1794	# we have to keep some variables in memory intact
		1795	local $self->{path};
		1796	local $self->{load_path};
		1797
		1798	$self->SUPER::thawer_merge ($merge);
		1799	}
		1800
		1801	sub normalise {
1328	my ($path) = @_;	1802	my ($path, $base) = @_;
		1803
		1804	$path = "$path"; # make sure its a string
		1805
		1806	$path =~ s/\.map$//;
		1807
		1808	# map plan:
		1809	#
		1810	# /! non-realised random map exit (special hack!)
		1811	# {... are special paths that are not being touched
		1812	# ?xxx/... are special absolute paths
		1813	# ?random/... random maps
		1814	# /... normal maps
		1815	# ~user/... per-player map of a specific user
		1816
		1817	$path =~ s/$PATH_SEP/\//go;
		1818
		1819	# treat it as relative path if it starts with
		1820	# something that looks reasonable
		1821	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1822	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1823
		1824	$base =~ s{[^/]+/?$}{};
		1825	$path = "$base/$path";
		1826	}
		1827
		1828	for ($path) {
		1829	redo if s{//}{/};
		1830	redo if s{/\.?/}{/};
		1831	redo if s{/[^/]+/\.\./}{/};
		1832	}
		1833
		1834	$path
		1835	}
		1836
		1837	sub new_from_path {
		1838	my (undef, $path, $base) = @_;
		1839
		1840	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1841
		1842	$path = normalise $path, $base;
		1843
		1844	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1845	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1846	my $self = bless cf::map::new, $pkg;
		1847	$self->{path} = $path; $self->path ($path);
		1848	$self->init; # pass $1 etc.
		1849	return $self;
		1850	}
		1851	}
		1852
		1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1854	()
		1855	}
		1856
		1857	sub init {
		1858	my ($self) = @_;
		1859
		1860	$self
		1861	}
		1862
		1863	sub as_string {
		1864	my ($self) = @_;
		1865
		1866	"$self->{path}"
		1867	}
		1868
		1869	# the displayed name, this is a one way mapping
		1870	sub visible_name {
		1871	&as_string
		1872	}
		1873
		1874	# the original (read-only) location
		1875	sub load_path {
		1876	my ($self) = @_;
		1877
		1878	"$MAPDIR/$self->{path}.map"
		1879	}
		1880
		1881	# the temporary/swap location
		1882	sub save_path {
		1883	my ($self) = @_;
		1884
		1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1886	"$TMPDIR/$path.map"
		1887	}
		1888
		1889	# the unique path, undef == no special unique path
		1890	sub uniq_path {
		1891	my ($self) = @_;
		1892
		1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1894	"$UNIQUEDIR/$path"
		1895	}
		1896
		1897	sub decay_objects {
		1898	my ($self) = @_;
		1899
		1900	return if $self->{deny_reset};
		1901
		1902	$self->do_decay_objects;
		1903	}
		1904
		1905	sub unlink_save {
		1906	my ($self) = @_;
		1907
		1908	utf8::encode (my $save = $self->save_path);
		1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1911	}
		1912
		1913	sub load_header_from($) {
		1914	my ($self, $path) = @_;
1329		1915
1330	utf8::encode $path;	1916	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1332	or return;	1918	or return;
1333		1919
1334	my $map = cf::map::new	1920	$self->_load_header ($f)
1335	or return;	1921	or return;
1336		1922
1337	# for better error messages only, will be overwritten	1923	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1924	$f->resolve_delayed_derefs;
1339		1925
1340	$map->load_header ($path)	1926	$self->{load_path} = $path;
		1927
		1928	1
		1929	}
		1930
		1931	sub load_header_orig {
		1932	my ($self) = @_;
		1933
		1934	$self->load_header_from ($self->load_path)
		1935	}
		1936
		1937	sub load_header_temp {
		1938	my ($self) = @_;
		1939
		1940	$self->load_header_from ($self->save_path)
		1941	}
		1942
		1943	sub prepare_temp {
		1944	my ($self) = @_;
		1945
		1946	$self->last_access ((delete $self->{last_access})
		1947	|| $cf::RUNTIME); #d#
		1948	# safety
		1949	$self->{instantiate_time} = $cf::RUNTIME
		1950	if $self->{instantiate_time} > $cf::RUNTIME;
		1951	}
		1952
		1953	sub prepare_orig {
		1954	my ($self) = @_;
		1955
		1956	$self->{load_original} = 1;
		1957	$self->{instantiate_time} = $cf::RUNTIME;
		1958	$self->last_access ($cf::RUNTIME);
		1959	$self->instantiate;
		1960	}
		1961
		1962	sub load_header {
		1963	my ($self) = @_;
		1964
		1965	if ($self->load_header_temp) {
		1966	$self->prepare_temp;
		1967	} else {
		1968	$self->load_header_orig
1341	or return;	1969	or return;
		1970	$self->prepare_orig;
		1971	}
1342		1972
1343	$map->{load_path} = $path;	1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
1344		1975
1345	$map	1976	$self->default_region (cf::region::find_by_path $self->{path})
		1977	unless $self->default_region;
		1978
		1979	1
1346	}	1980	}
1347		1981
1348	sub find;	1982	sub find;
1349	sub find {	1983	sub find {
1350	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1351		1985
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1987
1357	cf::lock_wait "map_find:$key";	1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1358
1359	$cf::MAP{$key} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1361		1990
1362	# do it the slow way	1991	$cf::MAP{$path} || do {
1363	my $map = try_load_header $path->save_path;	1992	my $map = new_from_path cf::map $path
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1993	or return;
1381		1994
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1394		1996
1395	Coro::cede;	1997	$map->load_header
		1998	or return;
1396		1999
1397	if ($map->should_reset) {	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2001	# doing this can freeze the server in a sync job, obviously
		2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1398	$map->reset;	2005	$map->reset;
1399	undef $guard;
1400	$map = find $path	2006	return find $path;
1401	or return;
1402	}	2007	}
1403		2008
1404	$cf::MAP{$key} = $map	2009	$cf::MAP{$path} = $map
1405	}	2010	}
1406	}	2011	}
		2012
		2013	sub pre_load { }
		2014	sub post_load { }
1407		2015
1408	sub load {	2016	sub load {
1409	my ($self) = @_;	2017	my ($self) = @_;
1410		2018
		2019	local $self->{deny_reset} = 1; # loading can take a long time
		2020
1411	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2024	my $guard = cf::lock_acquire "map_data:$path";
1413		2025
		2026	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2028
1416	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1417		2030
1418	$self->alloc;	2031	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2032
		2033	$self->pre_load;
		2034	cf::cede_to_tick;
		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1420	or return;	2039	or return;
1421		2040
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1423	if delete $self->{load_original};	2042	if delete $self->{load_original};
1424		2043
1425	if (my $uniq = $path->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2045	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2048	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1430	}	2052	}
1431	}	2053	}
1432		2054
1433	Coro::cede;	2055	$f->resolve_delayed_derefs;
1434		2056
		2057	cf::cede_to_tick;
1435	# now do the right thing for maps	2058	# now do the right thing for maps
1436	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2061	unless $self->difficulty;
		2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1448	$self->activate;	2069	$self->activate;
1449	}	2070	}
1450		2071
1451	Coro::cede;	2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
1452		2074
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2075	$self->in_memory (cf::MAP_ACTIVE);
		2076	}
		2077
		2078	$self->post_load;
		2079	}
		2080
		2081	sub customise_for {
		2082	my ($self, $ob) = @_;
		2083
		2084	return find "~" . $ob->name . "/" . $self->{path}
		2085	if $self->per_player;
		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
		2090	$self
		2091	}
		2092
		2093	# find and load all maps in the 3x3 area around a map
		2094	sub load_neighbours {
		2095	my ($map) = @_;
		2096
		2097	my @neigh; # diagonal neighbours
		2098
		2099	for (0 .. 3) {
		2100	my $neigh = $map->tile_path ($_)
		2101	or next;
		2102	$neigh = find $neigh, $map
		2103	or next;
		2104	$neigh->load;
		2105
		2106	push @neigh,
		2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2109	}
		2110
		2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
		2113	my $neigh = find $path, $origin
		2114	or next;
		2115	$neigh->load;
		2116	}
1454	}	2117	}
1455		2118
1456	sub find_sync {	2119	sub find_sync {
1457	my ($path, $origin) = @_;	2120	my ($path, $origin) = @_;
1458		2121
1459	cf::sync_job { cf::map::find $path, $origin }	2122	cf::sync_job { find $path, $origin }
1460	}	2123	}
1461		2124
1462	sub do_load_sync {	2125	sub do_load_sync {
1463	my ($map) = @_;	2126	my ($map) = @_;
1464		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1465	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
		2132	}
		2133
		2134	our %MAP_PREFETCH;
		2135	our $MAP_PREFETCHER = undef;
		2136
		2137	sub find_async {
		2138	my ($path, $origin, $load) = @_;
		2139
		2140	$path = normalise $path, $origin && $origin->{path};
		2141
		2142	if (my $map = $cf::MAP{$path}) {
		2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2144	}
		2145
		2146	$MAP_PREFETCH{$path} |= $load;
		2147
		2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
		2151	while (%MAP_PREFETCH) {
		2152	while (my ($k, $v) = each %MAP_PREFETCH) {
		2153	if (my $map = find $k) {
		2154	$map->load if $v;
		2155	}
		2156
		2157	delete $MAP_PREFETCH{$k};
		2158	}
		2159	}
		2160	undef $MAP_PREFETCHER;
		2161	};
		2162	$MAP_PREFETCHER->prio (6);
		2163
		2164	()
1466	}	2165	}
1467		2166
1468	sub save {	2167	sub save {
1469	my ($self) = @_;	2168	my ($self) = @_;
1470		2169
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2171
1473	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1474		2173
1475	return unless $self->dirty;	2174	return unless $self->dirty;
1476		2175
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2176	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2177	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2178
1480	$self->{load_path} = $save;	2179	$self->{load_path} = $save;
1481		2180
1482	return if $self->{deny_save};	2181	return if $self->{deny_save};
1483		2182
1484	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1485		2184
1486	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1488	};	2188	};
1489		2189
		2190	cf::get_slot 0.02;
		2191
1490	if ($uniq) {	2192	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2195	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2196	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2197	}
1496	}	2198	}
1497		2199
1498	sub swap_out {	2200	sub swap_out {
1499	my ($self) = @_;	2201	my ($self) = @_;
1500		2202
1501	# save first because save cedes	2203	# save first because save cedes
1502	$self->save;	2204	$self->save;
1503		2205
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2207
1506	return if $self->players;	2208	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1508	return if $self->{deny_save};	2210	return if $self->{deny_save};
1509		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2216	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2217	}
1513		2218
1514	sub reset_at {	2219	sub reset_at {
1515	my ($self) = @_;	2220	my ($self) = @_;
1516		2221
1517	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1520		2224
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2227
…		…
1528	my ($self) = @_;	2232	my ($self) = @_;
1529		2233
1530	$self->reset_at <= $cf::RUNTIME	2234	$self->reset_at <= $cf::RUNTIME
1531	}	2235	}
1532		2236
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2237	sub reset {
1555	my ($self) = @_;	2238	my ($self) = @_;
1556		2239
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2241
1559	return if $self->players;	2242	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2243
1562	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
1563		2255
1564	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1565		2257
		2258	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2259	$_->clear_links_to ($self) for values %cf::MAP;
		2260	$self->clear;
1567		2261
1568	$self->unlink_save;	2262	$self->unlink_save;
1569	$self->destroy;	2263	$self->destroy;
1570	}	2264	}
1571		2265
1572	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1573		2267
1574	sub nuke {	2268	sub nuke {
1575	my ($self) = @_;	2269	my ($self) = @_;
1576		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
		2274	delete $cf::MAP{$self->path};
		2275
		2276	$self->unlink_save;
		2277
		2278	bless $self, "cf::map";
		2279	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2283
		2284	$cf::MAP{$self->path} = $self;
		2285	}
		2286
1580	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
1581	}	2288	}
1582		2289
1583	sub customise_for {	2290	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2291
1586	if ($map->per_player) {	2292	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
1588	}	2298	[
1589		2299	map {
1590	$map	2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
1591	}	2306	}
1592		2307
1593	sub emergency_save {	2308	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2309
1596	warn "enter emergency perl save\n";	2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
1597		2312
1598	cf::sync_job {	2313	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2314
1603	warn "begin emergency map save\n";	2315	sub random_maps() {
1604	$_->save for values %cf::MAP;	2316	[
1605	warn "end emergency map save\n";	2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
		2324	}
		2325
		2326	=item cf::map::unique_maps
		2327
		2328	Returns an arrayref of paths of all shared maps that have
		2329	instantiated unique items. May block.
		2330
		2331	=cut
		2332
		2333	sub unique_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	s/\.map$//; # TODO future compatibility hack
		2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2339	? ()
		2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
		2342	]
		2343	}
		2344
		2345	=back
		2346
		2347	=head3 cf::object
		2348
		2349	=cut
		2350
		2351	package cf::object;
		2352
		2353	=over 4
		2354
		2355	=item $ob->inv_recursive
		2356
		2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
		2359
		2360	=cut
		2361
		2362	sub inv_recursive_;
		2363	sub inv_recursive_ {
		2364	map { $_, inv_recursive_ $_->inv } @_
		2365	}
		2366
		2367	sub inv_recursive {
		2368	inv_recursive_ inv $_[0]
		2369	}
		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
1606	};	2396	}
1607
1608	warn "leave emergency perl save\n";
1609	}	2397	}
1610		2398
1611	package cf;	2399	package cf;
1612		2400
1613	=back	2401	=back
1614
1615		2402
1616	=head3 cf::object::player	2403	=head3 cf::object::player
1617		2404
1618	=over 4	2405	=over 4
1619		2406
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1625		2412
1626	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1627		2428
1628	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2430	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1633		2434
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2436
1636	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1638	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1641	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1642	}	2462	}
1643		2463
1644	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1645		2465
1646	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1659		2479
1660	=item $player_object->enter_link	2480	=item $player_object->enter_link
1661		2481
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2483
1664	The player should be reaosnably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
		2488
		2489	Will never block.
1666		2490
1667	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1668		2492
1669	Moves the player out of the specila link map onto the given map. If the	2493	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2494	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2495	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2496	fails, to the emergency map position.
1673		2497
1674	Might block.	2498	Might block.
1675		2499
1676	=cut	2500	=cut
		2501
		2502	sub link_map {
		2503	unless ($LINK_MAP) {
		2504	$LINK_MAP = cf::map::find "{link}"
		2505	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2506	$LINK_MAP->load;
		2507	}
		2508
		2509	$LINK_MAP
		2510	}
1677		2511
1678	sub cf::object::player::enter_link {	2512	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2513	my ($self) = @_;
1680		2514
1681	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1682		2516
1683	return if $self->map == $LINK_MAP;	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2518
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1687		2521
1688	$self->enter_map ($LINK_MAP, 20, 20);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2523	}
1690		2524
1691	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1693		2529
1694	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1695		2531
1696	unless ($map) {	2532	unless ($map) {
1697	# restore original map position	2533	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1714		2550
1715	$map->load;	2551	$map->load;
		2552	$map->load_neighbours;
1716		2553
1717	return unless $self->contr->active;	2554	return unless $self->contr->active;
		2555
		2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2557	$self->enter_map ($map, $x, $y);
		2558
		2559	# only activate afterwards, to support waiting in hooks
1718	$self->activate_recursive;	2560	$self->activate_recursive;
1719	$self->enter_map ($map, $x, $y);
1720	}	2561	}
1721		2562
1722	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2564
1726	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1730	};	2569	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2570
1736	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1737	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753		2573
1754	=item $player_object->goto ($path, $x, $y)
1755
1756	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1757		2577
1758	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2580
1761	$path = new cf::path $path;	2581	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2583
1764	$self->enter_link;	2584	$self->enter_link;
1765		2585
1766	(async {	2586	(async {
1767	my $map = cf::map::find $path->as_string;	2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
		2608	my $map = eval {
		2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
1769		2613	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2614	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
1774		2617
		2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
		2624	}
		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1776	})->prio (1);	2632	})->prio (1);
1777	}	2633	}
1778		2634
1779	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1780		2636
…		…
1782		2638
1783	sub parse_random_map_params {	2639	sub parse_random_map_params {
1784	my ($spec) = @_;	2640	my ($spec) = @_;
1785		2641
1786	my $rmp = { # defaults	2642	my $rmp = { # defaults
1787	xsize => 10,	2643	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2644	ysize => (cf::rndm 15, 40),
		2645	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2646	#layout => string,
1789	};	2647	};
1790		2648
1791	for (split /\n/, $spec) {	2649	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2650	my ($k, $v) = split /\s+/, $_, 2;
1793		2651
…		…
1805	# that depends on the exit object	2663	# that depends on the exit object
1806		2664
1807	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
1808		2666
1809	if ($exit->map) {	2667	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2668	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1814	}	2674	}
1815		2675
1816	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1817		2677
1818	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1819	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
		2680	my $meta = "$RANDOMDIR/$md5.meta";
1820		2681
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
		2684	undef $fh;
		2685	aio_rename "$meta~", $meta;
1823		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1824	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1826	}	2693	}
1827	}	2694	}
1828		2695
1829	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
…		…
1832	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1833		2700
1834	$self->enter_link;	2701	$self->enter_link;
1835		2702
1836	(async {	2703	(async {
1837	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1838	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
1839	prepare_random_map $exit	2713	prepare_random_map $exit
1840	if $exit->slaying eq "/!";	2714	if $exit->slaying eq "/!";
		2715	}
1841		2716
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
1844		2720
		2721	$self->goto ($map, $x, $y);
		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
1845	1;	2727	1
1846	}) {	2728	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1848	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2731	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2733
1852	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2735	$self->leave_link;
1854	}	2736	}
1855	})->prio (1);	2737	})->prio (1);
…		…
1868		2750
1869	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1871		2753
1872	utf8::encode $text;	2754	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2756	}
1875		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
		2918	=item $client->ext_msg ($type, @msg)
		2919
		2920	Sends an ext event to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_msg($$@) {
		2925	my ($self, $type, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
		2930	push @msg, msgtype => "event_$type";
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
		2951	}
1876		2952
1877	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1878		2954
1879	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2958
1883	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2960	become reliable at some point in the future.
1885		2961
1886	=cut	2962	=cut
1887		2963
1888	sub cf::client::query {	2964	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2973	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2975
1900	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
1902	}	2980	}
1903		2981
1904	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
1905	on_reply => sub {	2988	on_reply => sub {
1906	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
1907		2990
1908	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
1909	# get handled first	2992	# get handled first
1910	my $queue = delete $ns->{query_queue}	2993	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2994	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2995
1913	(shift @$queue)->[1]->($msg);	2996	(shift @$queue)->[1]->($msg);
		2997	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2998
1915	push @{ $ns->{query_queue} }, @$queue;	2999	push @{ $ns->{query_queue} }, @$queue;
1916		3000
1917	if (@{ $ns->{query_queue} } == @$queue) {	3001	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	3002	if (@$queue) {
…		…
1920	} else {	3004	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	3006	}
1923	}	3007	}
1924	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
1925	);	3035	);
1926		3036
1927	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
1928		3038
1929	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
1972		3082
1973	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
1974		3084
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
1976		3090
1977	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
1978		3092
1979	=pod	3093	=pod
1980		3094
1981	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
1982		3096
1983	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
1984	cf::object::player player	3102	cf::object::player
1985	cf::player peaceful	3103	player
1986	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
1987		3110
1988	=cut	3111	=cut
1989		3112
1990	for (	3113	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
1992	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
1994	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
1995	) {	3120	) {
1996	no strict 'refs';	3121	no strict 'refs';
1997	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
1998	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2015	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2016		3141
2017	my $qcode = $code;	3142	my $qcode = $code;
2018	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2019	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2020		3147
2021	local $_;	3148	local $_;
2022	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2023		3150
2024	my $eval =	3151	my $eval =
…		…
2067	=back	3194	=back
2068		3195
2069	=cut	3196	=cut
2070		3197
2071	#############################################################################	3198	#############################################################################
		3199	# the server's init and main functions
2072		3200
2073	=head2 EXTENSION DATABASE SUPPORT	3201	sub load_facedata($) {
		3202	my ($path) = @_;
2074		3203
2075	Crossfire maintains a very simple database for extension use. It can	3204	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3205	# for this (global event?)
2077	excludes objects.	3206	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3207
2079	The parameter C<$family> should best start with the name of the extension	3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3209
2082	=over 4	3210	warn "loading facedata from $path\n";
2083		3211
2084	=item $hashref = cf::db_get $family	3212	my $facedata;
		3213	0 < aio_load $path, $facedata
		3214	or die "$path: $!";
2085		3215
2086	Return a hashref for use by the extension C<$family>, which can be	3216	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3217
2090	=item $value = cf::db_get $family => $key	3218	$facedata->{version} == 2
		3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3220
2092	Returns a single value from the database	3221	# patch in the exptable
2093		3222	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3223	type => FT_RSRC,
2095		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3225	};
		3226	cf::cede_to_tick;
2145		3227
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3228	{
		3229	my $faces = $facedata->{faceinfo};
2150		3230
2151	sub db_get($;$) {	3231	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3233
2157	sub db_put($$;$) {	3234	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3235	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2160	} else {	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		3238
2166	cf::global->attach (	3239	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3240	}
2171	);
2172	}
2173		3241
2174	#############################################################################	3242	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3243	next unless $info->{smooth};
2176		3244
2177	sub cfg_load {	3245	my $idx = cf::face::find $face
		3246	or next;
		3247
		3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
		3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3251	} else {
		3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3253	}
		3254
		3255	cf::cede_to_tick;
		3256	}
		3257	}
		3258
		3259	{
		3260	my $anims = $facedata->{animinfo};
		3261
		3262	while (my ($anim, $info) = each %$anims) {
		3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3264	cf::cede_to_tick;
		3265	}
		3266
		3267	cf::anim::invalidate_all; # d'oh
		3268	}
		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
		3305	1
		3306	}
		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
		3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
		3360	sub reload_facedata {
		3361	load_facedata "$DATADIR/facedata"
		3362	or die "unable to load facedata\n";
		3363	}
		3364
		3365	sub reload_archetypes {
		3366	load_resource_file "$DATADIR/archetypes"
		3367	or die "unable to load archetypes\n";
		3368	}
		3369
		3370	sub reload_treasures {
		3371	load_resource_file "$DATADIR/treasures"
		3372	or die "unable to load treasurelists\n";
		3373	}
		3374
		3375	sub reload_resources {
		3376	warn "reloading resource files...\n";
		3377
		3378	reload_facedata;
		3379	reload_archetypes;
		3380	reload_regions;
		3381	reload_treasures;
		3382
		3383	warn "finished reloading resource files\n";
		3384	}
		3385
		3386	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3388	or return;
2180		3389
2181	local $/;	3390	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2183		3392
2184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2185		3394
2186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2193	};	3402	};
2194	warn $@ if $@;	3403	warn $@ if $@;
2195	}	3404	}
2196	}	3405	}
2197		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2198	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2199	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3453	(async {
		3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
		3456	})->prio (Coro::PRIO_MAX);
2203	};	3457	};
2204		3458
2205	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
2206	db_load;	3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
		3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2207	load_extensions;	3477	load_extensions;
2208	Event::loop;	3478
		3479	utime time, time, $RUNTIMEFILE;
		3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2209	}	3489	}
2210		3490
2211	#############################################################################	3491	#############################################################################
2212	# initialisation	3492	# initialisation and cleanup
2213		3493
		3494	# install some emergency cleanup handlers
		3495	BEGIN {
		3496	our %SIGWATCHER = ();
		3497	for my $signal (qw(INT HUP TERM)) {
		3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3499	cf::cleanup "SIG$signal";
		3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
		3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
		3588	}
		3589
		3590	sub emergency_save() {
		3591	my $freeze_guard = cf::freeze_mainloop;
		3592
		3593	warn "emergency_perl_save: enter\n";
		3594
		3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
		3601	# use a peculiar iteration method to avoid tripping on perl
		3602	# refcount bugs in for. also avoids problems with players
		3603	# and maps saved/destroyed asynchronously.
		3604	warn "emergency_perl_save: begin player save\n";
		3605	for my $login (keys %cf::PLAYER) {
		3606	my $pl = $cf::PLAYER{$login} or next;
		3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3609	$pl->save;
		3610	}
		3611	warn "emergency_perl_save: end player save\n";
		3612
		3613	warn "emergency_perl_save: begin map save\n";
		3614	for my $path (keys %cf::MAP) {
		3615	my $map = $cf::MAP{$path} or next;
		3616	$map->valid or next;
		3617	$map->save;
		3618	}
		3619	warn "emergency_perl_save: end map save\n";
		3620
		3621	warn "emergency_perl_save: begin database checkpoint\n";
		3622	BDB::db_env_txn_checkpoint $DB_ENV;
		3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
		3628	};
		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
		3635	warn "emergency_perl_save: leave\n";
		3636	}
		3637
		3638	sub post_cleanup {
		3639	my ($make_core) = @_;
		3640
		3641	warn Carp::longmess "post_cleanup backtrace"
		3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
		3672	}
		3673
2214	sub reload() {	3674	sub do_reload_perl() {
2215	# can/must only be called in main	3675	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3677	warn "can only reload from main coroutine";
2218	return;	3678	return;
2219	}	3679	}
2220		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2221	warn "reloading...";	3686	warn "reloading...";
2222		3687
2223	my $guard = freeze_mainloop;	3688	warn "entering sync_job";
		3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
2224	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
2225		3694
2226	eval {	3695	warn "syncing database to disk";
		3696	BDB::db_env_txn_checkpoint $DB_ENV;
		3697
2227	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2228		3699
2229	# cancel all watchers	3700	warn "flushing outstanding aio requests";
2230	for (Event::all_watchers) {	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2232	}
2233
2234	# cancel all extension coros
2235	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();
2237
2238	# unload all extensions
2239	for (@exts) {
2240	warn "unloading <$_>";
2241	unload_extension $_;
2242	}
2243
2244	# unload all modules loaded from $LIBDIR
2245	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247
2248	warn "removing <$k>";
2249	delete $INC{$k};
2250
2251	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;
2253
2254	if (my $cb = $k->can ("unload_module")) {
2255	$cb->();
2256	}	3703	}
2257		3704
2258	Symbol::delete_package $k;	3705	warn "cancelling all extension coros";
		3706	$_->cancel for values %EXT_CORO;
		3707	%EXT_CORO = ();
		3708
		3709	warn "removing commands";
		3710	%COMMAND = ();
		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
		3718	warn "... unloading $pkg";
		3719
		3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
		3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2259	}	3729	}
2260		3730
2261	# sync database to disk	3731	warn "unloading all perl modules loaded from $LIBDIR";
2262	cf::db_sync;	3732	while (my ($k, $v) = each %INC) {
2263	IO::AIO::flush;	3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2264		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
		3746	}
		3747
2265	# get rid of safe::, as good as possible	3748	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3751
2269	# remove register_script_function callbacks	3752	warn "unloading cf.pm \"a bit\"";
2270	# TODO
2271
2272	# unload cf.pm "a bit"
2273	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2274		3755
2275	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3757	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2278		3759
2279	# reload cf.pm	3760	warn "unload completed, starting to reload now";
		3761
2280	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2281	require cf;	3763	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3765
2284	# load config and database again	3766	warn "loading config and database again";
2285	cf::cfg_load;	3767	cf::reload_config;
2286	cf::db_load;
2287		3768
2288	# load extensions
2289	warn "load extensions";	3769	warn "loading extensions";
2290	cf::load_extensions;	3770	cf::load_extensions;
2291		3771
2292	# reattach attachments to objects	3772	if ($REATTACH_ON_RELOAD) {
2293	warn "reattach";	3773	warn "reattaching attachments to objects/players";
2294	_global_reattach;	3774	_global_reattach; # objects, sockets
		3775	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
		3784	warn "leaving sync_job";
		3785
		3786	1
		3787	} or do {
		3788	warn $@;
		3789	cf::cleanup "error while reloading, exiting.";
		3790	};
		3791
		3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
		3798	};
		3799
		3800	our $RELOAD_WATCHER; # used only during reload
		3801
		3802	sub reload_perl() {
		3803	# doing reload synchronously and two reloads happen back-to-back,
		3804	# coro crashes during coro_state_free->destroy here.
		3805
		3806	$RELOAD_WATCHER ||= cf::async {
		3807	Coro::AIO::aio_wait cache_extensions;
		3808
		3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3810	do_reload_perl;
		3811	undef $RELOAD_WATCHER;
		3812	};
2296	};	3813	};
2297
2298	if ($@) {
2299	warn $@;
2300	warn "error while reloading, exiting.";
2301	exit 1;
2302	}
2303
2304	warn "reloaded successfully";
2305	};
2306
2307	#############################################################################
2308
2309	unless ($LINK_MAP) {
2310	$LINK_MAP = cf::map::new;
2311
2312	$LINK_MAP->width (41);
2313	$LINK_MAP->height (41);
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3814	}
2349
2350	register "<global>", __PACKAGE__;
2351		3815
2352	register_command "reload" => sub {	3816	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2354		3818
2355	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
		3823	reload_perl;
		3824	};
2359	}	3825	}
2360	};	3826	};
2361		3827
2362	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2363		3829
2364	$TICK_WATCHER = Event->timer (	3830	my $bug_warning = 0;
2365	reentrant => 0,	3831
2366	prio => 0,	3832	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	3833	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	3834
2369	cb => sub {	3835	sub wait_for_tick {
		3836	return if tick_inhibit || $Coro::current == $Coro::main;
		3837
		3838	my $signal = new Coro::Signal;
		3839	push @WAIT_FOR_TICK, $signal;
		3840	$signal->wait;
		3841	}
		3842
		3843	sub wait_for_tick_begin {
		3844	return if tick_inhibit || $Coro::current == $Coro::main;
		3845
		3846	my $signal = new Coro::Signal;
		3847	push @WAIT_FOR_TICK_BEGIN, $signal;
		3848	$signal->wait;
		3849	}
		3850
		3851	sub tick {
		3852	if ($Coro::current != $Coro::main) {
		3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3854	unless ++$bug_warning > 10;
		3855	return;
		3856	}
		3857
2370	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2371	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;
2373		3859
2374	# if we are delayed by four ticks or more, skip them all	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2376		3862	Coro::async_pool {
2377	$TICK_WATCHER->at ($NEXT_TICK);	3863	$Coro::current->{desc} = "runtime saver";
2378	$TICK_WATCHER->start;
2379	},
2380	);
2381
2382	IO::AIO::max_poll_time $TICK * 0.2;
2383
2384	Event->io (
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,
2394	after => 0,
2395	interval => 10,
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	3864	write_runtime_sync
2399	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2400	})->();	3866	};
2401	},	3867	}
2402	);	3868
		3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3870	$sig->send;
		3871	}
		3872	while (my $sig = shift @WAIT_FOR_TICK) {
		3873	$sig->send;
		3874	}
		3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
		3887
		3888	{
		3889	# configure BDB
		3890
		3891	BDB::min_parallel 8;
		3892	BDB::max_poll_reqs $TICK * 0.1;
		3893	$AnyEvent::BDB::WATCHER->priority (1);
		3894
		3895	unless ($DB_ENV) {
		3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3902
		3903	cf::sync_job {
		3904	eval {
		3905	BDB::db_env_open
		3906	$DB_ENV,
		3907	$BDBDIR,
		3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3910	0666;
		3911
		3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3913	};
		3914
		3915	cf::cleanup "db_env_open(db): $@" if $@;
		3916	};
		3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
		3928	}
		3929
		3930	{
		3931	# configure IO::AIO
		3932
		3933	IO::AIO::min_parallel 8;
		3934	IO::AIO::max_poll_time $TICK * 0.1;
		3935	undef $AnyEvent::AIO::WATCHER;
		3936	}
		3937
		3938	my $_log_backtrace;
		3939
		3940	sub _log_backtrace {
		3941	my ($msg, @addr) = @_;
		3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
		3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
2403		3982
2404	END { cf::emergency_save }	3983	END { cf::emergency_save }
2405		3984
2406	1	3985	1
2407		3986

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