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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.494 by root, Mon Oct 26 05:18:00 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;	58	use Digest::MD5;
22	use Fcntl;	59	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	60	use YAML::XS ();
		61	use IO::AIO ();
25	use Time::HiRes;	62	use Time::HiRes;
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		83
36	our %COMMAND = ();	84	our %COMMAND = ();
37	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
38		86
39	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
43		92
		93	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	94	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
46		97
47	our $TICK = MAX_TIME * 1e-6;	98	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	99	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103	our $LOCALDIR = localdir;
		104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		107	our $RANDOMDIR = "$LOCALDIR/random";
		108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
		113
		114	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	116	our $NEXT_TICK;
52	our $NOW;	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
		121	our $BDB_TRICKLE_WATCHER;
		122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
53		125
54	our %CFG;	126	our %CFG;
55		127
56	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
58		131
59	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		135
67	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
		148
70	binmode STDOUT;	149	binmode STDOUT;
71	binmode STDERR;	150	binmode STDERR;
72		151
73	# read virtual server time, if available	152	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
78	}	157	}
79		158
80	mkdir cf::localdir;	159	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	160
82	mkdir cf::localdir . "/" . cf::tmpdir;	161	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		163
86	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
		165
		166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		178
88	#############################################################################	179	#############################################################################
89		180
90	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
91		182
…		…
98	=item $cf::RUNTIME	189	=item $cf::RUNTIME
99		190
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	191	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	192	every server tick.
102		193
103	=item $cf::LIBDIR	194	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		195	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		196	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		197
105	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	199	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		200	unique-items directory, player file directory, random maps directory and
		201	database environment.
107		202
108	=item $cf::NOW	203	=item $cf::NOW
109		204
110	The time of the last (current) server tick.	205	The time of the last (current) server tick.
111		206
112	=item $cf::TICK	207	=item $cf::TICK
113		208
114	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
115		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
116	=item %cf::CFG	221	=item %cf::CFG
117		222
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	224	from wherever your confdir points to.
120		225
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		227
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	228	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	229	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
127		243
128	=back	244	=back
129		245
130	=cut	246	=cut
131		247
132	BEGIN {	248	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	249	my $msg = join "", @_;
135	utf8::encode $msg;
136		250
137	$msg .= "\n"	251	$msg .= "\n"
138	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
139		253
		254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		255
140	LOG llevError, $msg;	256	LOG llevError, $msg;
141	};	257	};
142	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
143		272
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		280
151	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	282	# within the Safe compartment.
153	for my $pkg (qw(	283	for my $pkg (qw(
154	cf::global cf::attachable	284	cf::global cf::attachable
155	cf::object cf::object::player	285	cf::object cf::object::player
156	cf::client cf::player	286	cf::client cf::player
157	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
158	cf::map cf::party cf::region	289	cf::party cf::region
159	)) {	290	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	292	}
163		293
164	$Event::DIED = sub {	294	$EV::DIED = sub {
165	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
166	};	296	};
		297
		298	#############################################################################
167		299
168	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
169		301
170	=over 4	302	=over 4
171		303
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	323	$d
192	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
193	}	325	}
194		326
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
198		328
199	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
200		330
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
209		332
210	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
211		334
212	=cut	335	=cut
213		336
214	sub to_json($) {	337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	338
216	JSON::Syck::Dump $_[0]	339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
217	}	354	}
218		355
219	=item cf::lock_wait $string	356	=item cf::lock_wait $string
220		357
221	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
222		359
223	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
224		361
225	Wait until the given lock is available and then acquires it and returns	362	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	363	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
228	returned.	365	returned.
229		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
230	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
232		372
233	=cut	373	=item $locked = cf::lock_active $string
234		374
235	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
236		380
237	sub lock_wait($) {	381	sub lock_wait($) {
238	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	383	}
246		384
247	sub lock_acquire($) {	385	sub lock_acquire($) {
248	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
249		388
250	# wait, to be sure we are not locked	389	sub lock_active($) {
251	lock_wait $key;	390	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	391	}
260		392
261	sub freeze_mainloop {	393	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
263		395
264	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	397	}
266	$WRITE_RUNTIME_WATCHER->start;	398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
267	};	457	}
268	$WRITE_RUNTIME_WATCHER->stop;	458	};
269	$TICK_WATCHER->stop;	459
270	$guard	460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
271	}	472	}
272		473
273	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
274		475
275	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		481
281	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
282		483
283	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
284		485
285	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
288		490
289	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
292	fast or be very important.	494	fast or be very important.
…		…
295		497
296	sub sync_job(&) {	498	sub sync_job(&) {
297	my ($job) = @_;	499	my ($job) = @_;
298		500
299	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
300	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
302		506
303	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	508
305	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
306		510
307	my $busy = 1;	511	my $busy = 1;
308	my @res;	512	my @res;
309		513
310	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	516	@res = eval { $job->() };
312	warn $@ if $@;	517	warn $@ if $@;
313	undef $busy;	518	undef $busy;
314	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
315		520
316	while ($busy) {	521	while ($busy) {
317	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
318	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
319		532
320	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
321	} else {	534	} else {
322	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
323		536
…		…
343	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
344		557
345	$coro	558	$coro
346	}	559	}
347		560
348	sub write_runtime {	561	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		562
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	Executes the given code block with the given arguments in a seperate
352	or return;	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
353		567
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	568	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		569
358	aio_fsync $fh	570	sub fork_call(&@) {
359	and return;	571	my ($cb, @args) = @_;
360		572
361	close $fh	573	# we seemingly have to make a local copy of the whole thing,
362	or return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
363		576
364	aio_rename "$runtime~", $runtime	577	my @res = Coro::Util::fork_eval {
365	and return;	578	reset_signals;
		579	&$cb
		580	}, @args;
366		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
367	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	748	}
369		749
370	=back	750	=back
371		751
372	=cut	752	=cut
373		753
374	#############################################################################	754	#############################################################################
375		755
376	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
377		757
378	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
381		761
382	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	764	Deliantra).
385		765
386	=over 4	766	=over 4
387		767
388	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
389		769
…		…
433	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
434		814
435	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
437		817
438	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
440		820
441	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
442		822
443	=over 4	823	=over 4
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	883	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	884	our @CB_MAP = ();
505		885
506	my %attachment;	886	my %attachment;
507		887
		888	sub cf::attachable::thawer_merge {
		889	# simply override everything except _meta
		890	local $_[0]{_meta};
		891	%{$_[0]} = %{$_[1]};
		892	}
		893
508	sub _attach_cb($$$$) {	894	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	895	my ($registry, $event, $prio, $cb) = @_;
510		896
511	use sort 'stable';	897	use sort 'stable';
512		898
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
547		933
548	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		938
553	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	940	my $pkg = shift @arg;
555		941
556	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
586	}	972	}
587		973
588	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
589	} else {	975	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	977	}
592		978
593	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
594	}	980	}
595		981
…		…
597	if (ref $_[0]) {	983	if (ref $_[0]) {
598	_object_attach @_;	984	_object_attach @_;
599	} else {	985	} else {
600	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
601	}	987	}
		988	_recalc_want;
602	};	989	};
603		990
604	# all those should be optimised	991	# all those should be optimised
605	sub cf::attachable::detach {	992	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
610	reattach ($obj);	997	reattach ($obj);
611	} else {	998	} else {
612	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
613	}	1000	}
		1001	_recalc_want;
614	};	1002	};
615		1003
616	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
618		1006
…		…
633	";	1021	";
634	die if $@;	1022	die if $@;
635	}	1023	}
636		1024
637	our $override;	1025	our $override;
638	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
639		1027
640	sub override {	1028	sub override {
641	$override = 1;	1029	$override = 1;
642	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
643	}	1031	}
644		1032
645	sub do_invoke {	1033	sub do_invoke {
646	my $event = shift;	1034	my $event = shift;
647	my $callbacks = shift;	1035	my $callbacks = shift;
648		1036
649	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
650		1038
651	local $override;	1039	local $override;
652		1040
653	for (@$callbacks) {	1041	for (@$callbacks) {
654	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
663	}	1051	}
664		1052
665	0	1053	0
666	}	1054	}
667		1055
668	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
669		1057
670	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
671		1059
672	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
673		1061
674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
675	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
676	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		1065
678	=back	1066	=back
679		1067
680	=cut	1068	=cut
681		1069
682	#############################################################################	1070	#############################################################################
683	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
684		1114
685	sub reattach {	1115	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	1117	my ($obj) = @_;
688		1118
		1119	# no longer needed after getting rid of delete_package?
689	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
690		1121
691	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
692		1123
693	@$registry = ();	1124	@$registry = ();
694		1125
…		…
709	cf::attachable->attach (	1140	cf::attachable->attach (
710	prio => -1000000,	1141	prio => -1000000,
711	on_instantiate => sub {	1142	on_instantiate => sub {
712	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
713		1144
714	$data = from_json $data;	1145	$data = decode_json $data;
715		1146
716	for (@$data) {	1147	for (@$data) {
717	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
718		1149
719	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
735	sub object_freezer_save {	1166	sub object_freezer_save {
736	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
737		1168
738	sync_job {	1169	sync_job {
739	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
740	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
741	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
742		1174
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1178	if ($cf::USE_FSYNC) {
		1179	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
746	aio_fsync $fh;	1180	aio_fsync $fh;
		1181	}
747	close $fh;	1182	aio_close $fh;
748		1183
749	if (@$objs) {	1184	if (@$objs) {
750	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
		1189	if ($cf::USE_FSYNC) {
		1190	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
754	aio_fsync $fh;	1191	aio_fsync $fh;
		1192	}
755	close $fh;	1193	aio_close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
757	}	1195	}
758	} else {	1196	} else {
759	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
760	}	1198	}
761		1199
762	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
763	} else {	1204	} else {
764	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
765	}	1206	}
766	} else {	1207	} else {
767	aio_unlink $filename;	1208	aio_unlink $filename;
768	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
769	}	1210	}
770	}	1211	};
771	}	1212	}
772		1213
773	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
774	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
775		1216
…		…
787	or return;	1228	or return;
788		1229
789	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
790	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
791	or return;	1232	or return;
		1233
792	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
793	}	1236	}
794		1237
		1238	utf8::decode (my $decname = $filename);
795	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
797	return ($data, $av);	1242	($data, $av)
798	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
799		1250
800	#############################################################################	1251	#############################################################################
801	# command handling &c	1252	# command handling &c
802		1253
803	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1268	}
818		1269
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1271
821	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
822		1277
823	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
824	called.	1279	called.
825		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
826	=cut	1292	=cut
827		1293
828	sub register_extcmd {	1294	sub register_extcmd {
829	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
830		1296
831	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
832	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
833		1307
834	cf::player->attach (	1308	cf::player->attach (
835	on_command => sub {	1309	on_command => sub {
836	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
837		1311
…		…
845	cf::override;	1319	cf::override;
846	},	1320	},
847	on_extcmd => sub {	1321	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
849		1323
850	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1325
852	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
854	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
855	$pl->ext_reply ($msg->{msgid}, %reply);
856	}
857	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
858	} else {	1341	} else {
859	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
860	}	1343	}
861		1344
862	cf::override;	1345	cf::override;
863	},	1346	},
864	);	1347	);
865		1348
		1349	# "readahead" all extensions
866	sub load_extension {	1350	sub cache_extensions {
867	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
868		1352
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
870	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
871	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}	1356	}
894	die $@;
895	}	1357	};
896		1358
897	push @EXTS, $pkg;	1359	$grp
898	}	1360	}
899		1361
900	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
901	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1367	next unless -r $path;
903	eval {	1368
904	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
905	1	1425	}
906	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
907	}	1431	};
908	}	1432	}
909		1433
910	#############################################################################	1434	#############################################################################
911		1435
		1436	=back
		1437
912	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
913		1439
914	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
915		1441
916	=cut	1442	=cut
917		1443
918	package cf::player;	1444	package cf::player;
919		1445
…		…
921		1447
922	=head3 cf::player	1448	=head3 cf::player
923		1449
924	=over 4	1450	=over 4
925		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
		1465
926	=item cf::player::find $login	1466	=item cf::player::find $login
927		1467
928	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
929		1469
930	=cut	1470	=cut
931		1471
932	sub playerdir($) {	1472	sub playerdir($) {
933	cf::localdir	1473	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1475	}
939		1476
940	sub path($) {	1477	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1479
943	(playerdir $login) . "/$login.pl"	1480	(playerdir $login) . "/playerdata"
944	}	1481	}
945		1482
946	sub find_active($) {	1483	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1484	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1485	and $cf::PLAYER{$_[0]}->active
…		…
951		1488
952	sub exists($) {	1489	sub exists($) {
953	my ($login) = @_;	1490	my ($login) = @_;
954		1491
955	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1493	or !aio_stat path $login
957	}	1494	}
958		1495
959	sub find($) {	1496	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1498	my $login = $_[0];
962		1499
963	my $guard = cf::lock_acquire "user_find:$login";	1500	my $guard = cf::lock_acquire "user_find:$login";
964		1501
965	$cf::PLAYER{$_[0]} || do {	1502	$cf::PLAYER{$_[0]} || do {
966	my $pl = load_pl path $login	1503	# rename old playerfiles to new ones
		1504	#TODO: remove when no longer required
		1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1508	aio_unlink +(playerdir $login) . "/$login.pl";
		1509
		1510	my $f = new_from_file cf::object::thawer path $login
967	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
968	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
969	}	1519	}
970	}	1520	}
971	}	1521	}
972		1522
…		…
981	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
982		1532
983	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
984	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
985		1535
		1536	cf::get_slot 0.01;
		1537
986	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
987	Coro::cede;	1539	cf::cede_to_tick;
988	}	1540	}
989		1541
990	sub new($) {	1542	sub new($) {
991	my ($login) = @_;	1543	my ($login) = @_;
992		1544
…		…
998	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
999		1551
1000	$self	1552	$self
1001	}	1553	}
1002		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1003	=item $pl->quit_character	1565	=item $pl->quit_character
1004		1566
1005	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1006	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1007		1569
1008	=cut	1570	=cut
1009		1571
1010	sub quit_character {	1572	sub quit_character {
1011	my ($pl) = @_;	1573	my ($pl) = @_;
1012		1574
		1575	my $name = $pl->ob->name;
		1576
1013	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1015		1579
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1017	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1018	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1019	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1020		1586
1021	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1589	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1590	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	1591	$pl->destroy;
		1592
		1593	my $prefix = qr<^~\Q$name\E/>;
		1594
		1595	# nuke player maps
		1596	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1597
1026	IO::AIO::aio_rmtree $temp;	1598	IO::AIO::aio_rmtree $temp;
		1599	}
		1600
		1601	=item $pl->kick
		1602
		1603	Kicks a player out of the game. This destroys the connection.
		1604
		1605	=cut
		1606
		1607	sub kick {
		1608	my ($pl, $kicker) = @_;
		1609
		1610	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1611	$pl->killer ("kicked");
		1612	$pl->ns->destroy;
1027	}	1613	}
1028		1614
1029	=item cf::player::list_logins	1615	=item cf::player::list_logins
1030		1616
1031	Returns am arrayref of all valid playernames in the system, can take a	1617	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1618	while and may block, so not sync_job-capable, ever.
1033		1619
1034	=cut	1620	=cut
1035		1621
1036	sub list_logins {	1622	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1623	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1624	or return [];
1039		1625
1040	my @logins;	1626	my @logins;
1041		1627
1042	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1043	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1044	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1045	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1046		1638
1047	utf8::decode $login;	1639	utf8::decode $login;
1048	push @logins, $login;	1640	push @logins, $login;
1049	}	1641	}
1050		1642
…		…
1058		1650
1059	=cut	1651	=cut
1060		1652
1061	sub maps($) {	1653	sub maps($) {
1062	my ($pl) = @_;	1654	my ($pl) = @_;
		1655
		1656	$pl = ref $pl ? $pl->ob->name : $pl;
1063		1657
1064	my $files = aio_readdir playerdir $pl	1658	my $files = aio_readdir playerdir $pl
1065	or return;	1659	or return;
1066		1660
1067	my @paths;	1661	my @paths;
…		…
1069	for (@$files) {	1663	for (@$files) {
1070	utf8::decode $_;	1664	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1665	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1666	next unless /^$PATH_SEP/o;
1073		1667
1074	s/\.map$//;	1668	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1669	}
1077		1670
1078	\@paths	1671	\@paths
1079	}	1672	}
1080		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1082		1679
1083	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1084		1681
1085	=cut	1682	=cut
1086		1683
1087	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1088	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1089		1686
1090	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1091
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1688	}
1094		1689
1095	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1096		1730
1097	=back	1731	=back
1098
1099		1732
1100	=head3 cf::map	1733	=head3 cf::map
1101		1734
1102	=over 4	1735	=over 4
1103		1736
…		…
1107		1740
1108	use Fcntl;	1741	use Fcntl;
1109	use Coro::AIO;	1742	use Coro::AIO;
1110		1743
1111	use overload	1744	use overload
1112	'""' => \&as_string;	1745	'""' => \&as_string,
		1746	fallback => 1;
1113		1747
1114	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1116		1750
1117	sub generate_random_map {	1751	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1119		1755
1120	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1757	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1767	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1768	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1769	)
1134	}	1770	}
1135		1771
		1772	=item cf::map->register ($regex, $prio)
		1773
		1774	Register a handler for the map path matching the given regex at the
		1775	givne priority (higher is better, built-in handlers have priority 0, the
		1776	default).
		1777
		1778	=cut
		1779
1136	sub register {	1780	sub register {
1137	my (undef, $regex) = @_;	1781	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1782	my $pkg = caller;
1139		1783
1140	no strict;	1784	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1785	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1786
1143	$EXT_MAP{$pkg} = qr<$regex>;	1787	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1788	}
1145		1789
1146	# also paths starting with '/'	1790	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1791	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1792
		1793	sub thawer_merge {
		1794	my ($self, $merge) = @_;
		1795
		1796	# we have to keep some variables in memory intact
		1797	local $self->{path};
		1798	local $self->{load_path};
		1799
		1800	$self->SUPER::thawer_merge ($merge);
		1801	}
1148		1802
1149	sub normalise {	1803	sub normalise {
1150	my ($path, $base) = @_;	1804	my ($path, $base) = @_;
		1805
		1806	$path = "$path"; # make sure its a string
		1807
		1808	$path =~ s/\.map$//;
1151		1809
1152	# map plan:	1810	# map plan:
1153	#	1811	#
1154	# /! non-realised random map exit (special hack!)	1812	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1813	# {... are special paths that are not being touched
…		…
1183		1841
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1842	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1843
1186	$path = normalise $path, $base;	1844	$path = normalise $path, $base;
1187		1845
1188	for my $pkg (keys %EXT_MAP) {	1846	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1847	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1848	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1849	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1193	return $self;	1851	return $self;
1194	}	1852	}
1195	}	1853	}
1196		1854
1197	Carp::carp "unable to resolve path '$path'.";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1198	()	1856	()
1199	}	1857	}
1200		1858
1201	sub init {	1859	sub init {
1202	my ($self) = @_;	1860	my ($self) = @_;
…		…
1217		1875
1218	# the original (read-only) location	1876	# the original (read-only) location
1219	sub load_path {	1877	sub load_path {
1220	my ($self) = @_;	1878	my ($self) = @_;
1221		1879
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1880	"$MAPDIR/$self->{path}.map"
1223	}	1881	}
1224		1882
1225	# the temporary/swap location	1883	# the temporary/swap location
1226	sub save_path {	1884	sub save_path {
1227	my ($self) = @_;	1885	my ($self) = @_;
1228		1886
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1888	"$TMPDIR/$path.map"
1231	}	1889	}
1232		1890
1233	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1234	sub uniq_path {	1892	sub uniq_path {
1235	my ($self) = @_;	1893	my ($self) = @_;
1236		1894
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1896	"$UNIQUEDIR/$path"
1239	}	1897	}
1240		1898
1241	# and all this just because we cannot iterate over	1899	sub decay_objects {
1242	# all maps in C++...
1243	sub change_all_map_light {
1244	my ($change) = @_;	1900	my ($self) = @_;
1245		1901
1246	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1247	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1248	}	1905	}
1249		1906
1250	sub unlink_save {	1907	sub unlink_save {
1251	my ($self) = @_;	1908	my ($self) = @_;
1252		1909
1253	utf8::encode (my $save = $self->save_path);	1910	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1912	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1913	}
1257		1914
1258	sub load_header_from($) {	1915	sub load_header_from($) {
1259	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1260		1917
1261	utf8::encode $path;	1918	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1263	or return;	1920	or return;
1264		1921
1265	$self->_load_header ($path)	1922	$self->_load_header ($f)
1266	or return;	1923	or return;
1267		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
		1927
1268	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1269		1929
1270	1	1930	1
1271	}	1931	}
1272		1932
1273	sub load_orig {	1933	sub load_header_orig {
1274	my ($self) = @_;	1934	my ($self) = @_;
1275		1935
1276	$self->load_header_from ($self->load_path)	1936	$self->load_header_from ($self->load_path)
1277	}	1937	}
1278		1938
1279	sub load_temp {	1939	sub load_header_temp {
1280	my ($self) = @_;	1940	my ($self) = @_;
1281		1941
1282	$self->load_header_from ($self->save_path)	1942	$self->load_header_from ($self->save_path)
		1943	}
		1944
		1945	sub prepare_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->last_access ((delete $self->{last_access})
		1949	|| $cf::RUNTIME); #d#
		1950	# safety
		1951	$self->{instantiate_time} = $cf::RUNTIME
		1952	if $self->{instantiate_time} > $cf::RUNTIME;
		1953	}
		1954
		1955	sub prepare_orig {
		1956	my ($self) = @_;
		1957
		1958	$self->{load_original} = 1;
		1959	$self->{instantiate_time} = $cf::RUNTIME;
		1960	$self->last_access ($cf::RUNTIME);
		1961	$self->instantiate;
1283	}	1962	}
1284		1963
1285	sub load_header {	1964	sub load_header {
1286	my ($self) = @_;	1965	my ($self) = @_;
1287		1966
1288	if ($self->load_temp) {	1967	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1968	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1969	} else {
1295	$self->load_orig	1970	$self->load_header_orig
1296	or return;	1971	or return;
1297		1972	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1973	}
		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
		1978	$self->default_region (cf::region::find_by_path $self->{path})
		1979	unless $self->default_region;
1303		1980
1304	1	1981	1
1305	}	1982	}
1306		1983
1307	sub find;	1984	sub find;
1308	sub find {	1985	sub find {
1309	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1310		1987
1311	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1312		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1313	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1314		1992
1315	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1316	my $guard = cf::lock_acquire "map_find:$path";
1317	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1318	or return;	1995	or return;
1319		1996
1320	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1321		1998
1322	$map->load_header	1999	$map->load_header
1323	or return;	2000	or return;
1324		2001
1325	if ($map->should_reset) {	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2003	# doing this can freeze the server in a sync job, obviously
		2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1326	$map->reset;	2007	$map->reset;
1327	undef $guard;
1328	$map = find $path	2008	return find $path;
1329	or return;
1330	}	2009	}
1331		2010
1332	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1333	}	2012	}
1334	}	2013	}
		2014
		2015	sub pre_load { }
		2016	sub post_load { }
1335		2017
1336	sub load {	2018	sub load {
1337	my ($self) = @_;	2019	my ($self) = @_;
1338		2020
		2021	local $self->{deny_reset} = 1; # loading can take a long time
		2022
1339	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1340	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1341		2027
		2028	return unless $self->valid;
1342	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1343		2030
1344	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1345		2032
1346	$self->alloc;	2033	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)	2034
		2035	$self->pre_load;
		2036	cf::cede_to_tick;
		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
		2040	$self->_load_objects ($f)
1348	or return;	2041	or return;
1349		2042
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1351	if delete $self->{load_original};	2044	if delete $self->{load_original};
1352		2045
1353	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;	2047	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1356	$self->clear_unique_items;	2050	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1358	}	2054	}
1359	}	2055	}
1360		2056
1361	Coro::cede;	2057	$f->resolve_delayed_derefs;
1362		2058
		2059	cf::cede_to_tick;
1363	# now do the right thing for maps	2060	# now do the right thing for maps
1364	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;
1371	$self->set_darkness_map;
1372	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	2063	unless $self->difficulty;
1374	Coro::cede;	2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1375	$self->activate;	2071	$self->activate;
1376	}	2072	}
1377		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1378	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
		2078	}
		2079
		2080	$self->post_load;
1379	}	2081	}
1380		2082
1381	sub customise_for {	2083	sub customise_for {
1382	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1383		2085
1384	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	2087	if $self->per_player;
1386		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1387	$self	2092	$self
1388	}	2093	}
1389		2094
1390	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1391	sub load_diag {	2096	sub load_neighbours {
1392	my ($map) = @_;	2097	my ($map) = @_;
1393		2098
1394	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1395		2100
1396	for (0 .. 3) {	2101	for (0 .. 3) {
1397	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1398	or next;	2103	or next;
1399	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1400	or next;	2105	or next;
1401	$neigh->load;	2106	$neigh->load;
1402		2107
		2108	push @neigh,
1403	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1404	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1405	}	2111	}
1406		2112
1407	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1408	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1409	or next;	2116	or next;
1410	$neigh->load;	2117	$neigh->load;
1411	}	2118	}
1412	}	2119	}
1413		2120
…		…
1418	}	2125	}
1419		2126
1420	sub do_load_sync {	2127	sub do_load_sync {
1421	my ($map) = @_;	2128	my ($map) = @_;
1422		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1423	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1424	}	2134	}
1425		2135
1426	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	2137	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		2138
1440	sub find_async {	2139	sub find_async {
1441	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1442		2141
1443	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1444		2143
1445	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2146	}
		2147
		2148	$MAP_PREFETCH{$path} |= $load;
		2149
		2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
		2153	while (%MAP_PREFETCH) {
		2154	while (my ($k, $v) = each %MAP_PREFETCH) {
		2155	if (my $map = find $k) {
		2156	$map->load if $v;
		2157	}
		2158
		2159	delete $MAP_PREFETCH{$k};
		2160	}
		2161	}
		2162	undef $MAP_PREFETCHER;
1447	}	2163	};
1448
1449	$MAP_PREFETCH{$path} = 0;
1450	$MAP_PREFETCHER->ready;	2164	$MAP_PREFETCHER->prio (6);
1451		2165
1452	()	2166	()
1453	}	2167	}
1454		2168
1455	sub save {	2169	sub save {
1456	my ($self) = @_;	2170	my ($self) = @_;
1457		2171
1458	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1459		2173
1460	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1461		2175
1462	return unless $self->dirty;	2176	return unless $self->dirty;
1463		2177
…		…
1469	return if $self->{deny_save};	2183	return if $self->{deny_save};
1470		2184
1471	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1472		2186
1473	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1474	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1475	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1476		2193
1477	if ($uniq) {	2194	if ($uniq) {
1478	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1479	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1480	} else {	2197	} else {
…		…
1486	my ($self) = @_;	2203	my ($self) = @_;
1487		2204
1488	# save first because save cedes	2205	# save first because save cedes
1489	$self->save;	2206	$self->save;
1490		2207
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2209
1493	return if $self->players;	2210	return if $self->players;
1494	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1495	return if $self->{deny_save};	2212	return if $self->{deny_save};
1496		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1497	$self->clear;	2218	$self->clear;
1498	$self->in_memory (cf::MAP_SWAPPED);
1499	}	2219	}
1500		2220
1501	sub reset_at {	2221	sub reset_at {
1502	my ($self) = @_;	2222	my ($self) = @_;
1503		2223
1504	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1507		2226
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		2229
…		…
1515	my ($self) = @_;	2234	my ($self) = @_;
1516		2235
1517	$self->reset_at <= $cf::RUNTIME	2236	$self->reset_at <= $cf::RUNTIME
1518	}	2237	}
1519		2238
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	2239	sub reset {
1535	my ($self) = @_;	2240	my ($self) = @_;
1536		2241
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		2243
1539	return if $self->players;	2244	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		2245
1542	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	# need to save uniques path
		2251	unless ($self->{deny_save}) {
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2255	if $uniq;
		2256	}
1543		2257
1544	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1545		2259
1546	$self->in_memory (cf::MAP_SWAPPED);	2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1547	$self->clear;	2262	$self->clear;
1548
1549	$_->clear_links_to ($self) for values %cf::MAP;
1550		2263
1551	$self->unlink_save;	2264	$self->unlink_save;
1552	$self->destroy;	2265	$self->destroy;
1553	}	2266	}
1554		2267
1555	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1556		2269
1557	sub nuke {	2270	sub nuke {
1558	my ($self) = @_;	2271	my ($self) = @_;
1559		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
		2276	delete $cf::MAP{$self->path};
		2277
		2278	$self->unlink_save;
		2279
		2280	bless $self, "cf::map";
		2281	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2285
		2286	$cf::MAP{$self->path} = $self;
		2287	}
		2288
1563	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1564	}	2326	}
1565		2327
1566	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1567		2329
1568	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2331	instantiated unique items. May block.
1570		2332
1571	=cut	2333	=cut
1572		2334
1573	sub unique_maps() {	2335	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2336	[
1575	or return;	2337	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2338	utf8::decode $_;
1581	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1582	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2341	? ()
		2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
		2344	]
		2345	}
1583		2346
		2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
1584	s/\.map$//;	2368	s/\.map$// or next;
1585	push @paths, $_;	2369	utf8::decode $_;
1586	}	2370	push @maps, "$dir/$_";
		2371	}
1587		2372
1588	\@paths	2373	push @dirs, map "$dir/$_", @$dirs;
1589	}	2374	}
1590		2375
1591	package cf;	2376	\@maps
		2377	}
1592		2378
1593	=back	2379	=back
1594		2380
1595	=head3 cf::object	2381	=head3 cf::object
1596		2382
…		…
1600		2386
1601	=over 4	2387	=over 4
1602		2388
1603	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1604		2390
1605	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1606		2393
1607	=cut	2394	=cut
1608		2395
1609	sub inv_recursive_;	2396	sub inv_recursive_;
1610	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1613		2400
1614	sub inv_recursive {	2401	sub inv_recursive {
1615	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1616	}	2403	}
1617		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1618	package cf;	2433	package cf;
1619		2434
1620	=back	2435	=back
1621		2436
1622	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1628	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1629	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1630	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1631		2446
1632	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1633		2462
1634	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1635	# with dialog boxes.	2464	# with dialog boxes.
1636	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1637	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1639		2468
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2470
1642	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1644	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1647	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1648	}	2496	}
1649		2497
1650	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1651		2499
1652	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1665		2513
1666	=item $player_object->enter_link	2514	=item $player_object->enter_link
1667		2515
1668	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1669		2517
1670	The player should be reasonably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1671	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1672		2522
1673	Will never block.	2523	Will never block.
1674		2524
1675	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1676		2526
…		…
1684	=cut	2534	=cut
1685		2535
1686	sub link_map {	2536	sub link_map {
1687	unless ($LINK_MAP) {	2537	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2538	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2539	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2540	$LINK_MAP->load;
1691	}	2541	}
1692		2542
1693	$LINK_MAP	2543	$LINK_MAP
1694	}	2544	}
…		…
1699	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1700		2550
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2552
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1705		2555
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2557	}
1708		2558
1709	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1711		2563
1712	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1713		2565
1714	unless ($map) {	2566	unless ($map) {
1715	# restore original map position	2567	# restore original map position
…		…
1726	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1727	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1728		2580
1729	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1730	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1731	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1732		2584
1733	$map->load;	2585	$map->load;
1734	$map->load_diag;	2586	$map->load_neighbours;
1735		2587
1736	return unless $self->contr->active;	2588	return unless $self->contr->active;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2591	$self->enter_map ($map, $x, $y);
		2592
		2593	# only activate afterwards, to support waiting in hooks
1737	$self->activate_recursive;	2594	$self->activate_recursive;
1738	$self->enter_map ($map, $x, $y);
1739	}	2595	}
1740		2596
1741	cf::player->attach (	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1742	on_logout => sub {
1743	my ($pl) = @_;
1744		2598
1745	# abort map switching before logout	2599	Moves the player to the given map-path and coordinates by first freezing
1746	if ($pl->ob->{_link_pos}) {	2600	her, loading and preparing them map, calling the provided $check callback
1747	cf::sync_job {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1748	$pl->ob->leave_link	2602	the new (success) or old (failed) map position. In either case, $done will
1749	};	2603	be called at the end of this process.
1750	}
1751	},
1752	on_login => sub {
1753	my ($pl) = @_;
1754		2604
1755	# try to abort aborted map switching on player login :)	2605	Note that $check will be called with a potentially non-loaded map, so if
1756	# should happen only on crashes	2606	it needs a loaded map it has to call C<< ->load >>.
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772		2607
1773	=item $player_object->goto ($path, $x, $y)
1774
1775	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1776		2611
1777	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2617
1780	$self->enter_link;	2618	$self->enter_link;
1781		2619
1782	(async {	2620	(async {
1783	my $map = cf::map::find $path;	2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
		2642	my $map = eval {
		2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
1785		2647	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2648	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
1790		2651
		2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
		2658	}
		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1792	})->prio (1);	2666	})->prio (1);
1793	}	2667	}
1794		2668
1795	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1796		2670
…		…
1798		2672
1799	sub parse_random_map_params {	2673	sub parse_random_map_params {
1800	my ($spec) = @_;	2674	my ($spec) = @_;
1801		2675
1802	my $rmp = { # defaults	2676	my $rmp = { # defaults
1803	xsize => 10,	2677	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2678	ysize => (cf::rndm 15, 40),
		2679	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2680	#layout => string,
1805	};	2681	};
1806		2682
1807	for (split /\n/, $spec) {	2683	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2684	my ($k, $v) = split /\s+/, $_, 2;
1809		2685
…		…
1821	# that depends on the exit object	2697	# that depends on the exit object
1822		2698
1823	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
1824		2700
1825	if ($exit->map) {	2701	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2702	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1830	}	2708	}
1831		2709
1832	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1833		2711
1834	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1835	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
		2714	my $meta = "$RANDOMDIR/$md5.meta";
1836		2715
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
		2718	undef $fh;
		2719	aio_rename "$meta~", $meta;
1839		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1840	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1842	}	2727	}
1843	}	2728	}
1844		2729
1845	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
…		…
1848	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1849		2734
1850	$self->enter_link;	2735	$self->enter_link;
1851		2736
1852	(async {	2737	(async {
1853	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1854	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
1855	prepare_random_map $exit	2747	prepare_random_map $exit
1856	if $exit->slaying eq "/!";	2748	if $exit->slaying eq "/!";
		2749	}
1857		2750
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
1860		2754
		2755	$self->goto ($map, $x, $y);
		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
1861	1;	2761	1
1862	}) {	2762	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1864	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2767
1868	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2769	$self->leave_link;
1870	}	2770	}
1871	})->prio (1);	2771	})->prio (1);
…		…
1884		2784
1885	sub cf::client::send_drawinfo {	2785	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2786	my ($self, $text, $flags) = @_;
1887		2787
1888	utf8::encode $text;	2788	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2790	}
1891		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
		2979	=item $client->ext_msg ($type, @msg)
		2980
		2981	Sends an ext event to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_msg($$@) {
		2986	my ($self, $type, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
		2991	push @msg, msgtype => "event_$type";
		2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
1892		3013
1893	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
1894		3015
1895	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
1896	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1897	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		3019
1899	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	3021	become reliable at some point in the future.
1901		3022
1902	=cut	3023	=cut
1903		3024
1904	sub cf::client::query {	3025	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	3034	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		3036
1916	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
1918	}	3041	}
1919		3042
1920	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
1921	on_reply => sub {	3049	on_reply => sub {
1922	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
1923		3051
1924	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
1925	# get handled first	3053	# get handled first
1926	my $queue = delete $ns->{query_queue}	3054	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	3055	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		3056
1929	(shift @$queue)->[1]->($msg);	3057	(shift @$queue)->[1]->($msg);
		3058	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		3059
1931	push @{ $ns->{query_queue} }, @$queue;	3060	push @{ $ns->{query_queue} }, @$queue;
1932		3061
1933	if (@{ $ns->{query_queue} } == @$queue) {	3062	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	3063	if (@$queue) {
…		…
1936	} else {	3065	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	3067	}
1939	}	3068	}
1940	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
1941	);	3096	);
1942		3097
1943	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
1944		3099
1945	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
1986	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
1987	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
1988		3143
1989	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
1990		3145
1991	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
1992		3151
1993	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
1994		3153
1995	=pod	3154	=pod
1996		3155
1997	The following fucntions and emthods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
1998		3157
1999	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2000	cf::object::player player	3163	cf::object::player
2001	cf::player peaceful	3164	player
2002	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2003		3171
2004	=cut	3172	=cut
2005		3173
2006	for (	3174	for (
2007	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2008	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2009	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2010	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2011	) {	3181	) {
2012	no strict 'refs';	3182	no strict 'refs';
2013	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2014	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2031	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2032		3202
2033	my $qcode = $code;	3203	my $qcode = $code;
2034	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2035	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2036		3208
2037	local $_;	3209	local $_;
2038	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2039		3211
2040	my $eval =	3212	my $eval =
…		…
2083	=back	3255	=back
2084		3256
2085	=cut	3257	=cut
2086		3258
2087	#############################################################################	3259	#############################################################################
		3260	# the server's init and main functions
2088		3261
2089	=head2 EXTENSION DATABASE SUPPORT	3262	sub load_facedata($) {
		3263	my ($path) = @_;
2090		3264
2091	Crossfire maintains a very simple database for extension use. It can	3265	# HACK to clear player env face cache, we need some signal framework
2092	currently store anything that can be serialised using Storable, which	3266	# for this (global event?)
2093	excludes objects.	3267	%ext::player_env::MUSIC_FACE_CACHE = ();
2094		3268
2095	The parameter C<$family> should best start with the name of the extension	3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2096	using it, it should be unique.
2097		3270
2098	=over 4	3271	warn "loading facedata from $path\n";
2099		3272
2100	=item $hashref = cf::db_get $family	3273	my $facedata;
		3274	0 < aio_load $path, $facedata
		3275	or die "$path: $!";
2101		3276
2102	Return a hashref for use by the extension C<$family>, which can be	3277	$facedata = Coro::Storable::thaw $facedata;
2103	modified. After modifications, you have to call C<cf::db_dirty> or
2104	C<cf::db_sync>.
2105		3278
2106	=item $value = cf::db_get $family => $key	3279	$facedata->{version} == 2
		3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2107		3281
2108	Returns a single value from the database	3282	# patch in the exptable
2109		3283	$facedata->{resource}{"res/exp_table"} = {
2110	=item cf::db_put $family => $hashref	3284	type => FT_RSRC,
2111		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114
2115	=item cf::db_put $family => $key => $value
2116
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127
2128	=cut
2129
2130	our $DB;
2131
2132	{
2133	my $path = cf::localdir . "/database.pst";
2134
2135	sub db_load() {
2136	$DB = stat $path ? Storable::retrieve $path : { };
2137	}
2138
2139	my $pid;
2140
2141	sub db_save() {
2142	waitpid $pid, 0 if $pid;
2143	if (0 == ($pid = fork)) {
2144	$DB->{_meta}{version} = 1;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});	3286	};
		3287	cf::cede_to_tick;
2161		3288
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}	3289	{
		3290	my $faces = $facedata->{faceinfo};
2166		3291
2167	sub db_get($;$) {	3292	while (my ($face, $info) = each %$faces) {
2168	@_ >= 2	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2169	? $DB->{$_[0]}{$_[1]}
2170	: ($DB->{$_[0]} ||= { })
2171	}
2172		3294
2173	sub db_put($$;$) {	3295	cf::face::set_visibility $idx, $info->{visibility};
2174	if (@_ >= 3) {	3296	cf::face::set_magicmap $idx, $info->{magicmap};
2175	$DB->{$_[0]}{$_[1]} = $_[2];	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2176	} else {	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2177	$DB->{$_[0]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181		3299
2182	cf::global->attach (	3300	cf::cede_to_tick;
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	3301	}
2187	);
2188	}
2189		3302
2190	#############################################################################	3303	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	3304	next unless $info->{smooth};
2192		3305
2193	sub cfg_load {	3306	my $idx = cf::face::find $face
		3307	or next;
		3308
		3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
		3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3312	} else {
		3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3314	}
		3315
		3316	cf::cede_to_tick;
		3317	}
		3318	}
		3319
		3320	{
		3321	my $anims = $facedata->{animinfo};
		3322
		3323	while (my ($anim, $info) = each %$anims) {
		3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3325	cf::cede_to_tick;
		3326	}
		3327
		3328	cf::anim::invalidate_all; # d'oh
		3329	}
		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
		3366	1
		3367	}
		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
		3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	load_resource_file "$MAPDIR/regions"
		3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
		3419	}
		3420
		3421	sub reload_facedata {
		3422	load_facedata "$DATADIR/facedata"
		3423	or die "unable to load facedata\n";
		3424	}
		3425
		3426	sub reload_archetypes {
		3427	load_resource_file "$DATADIR/archetypes"
		3428	or die "unable to load archetypes\n";
		3429	}
		3430
		3431	sub reload_treasures {
		3432	load_resource_file "$DATADIR/treasures"
		3433	or die "unable to load treasurelists\n";
		3434	}
		3435
		3436	sub reload_resources {
		3437	warn "reloading resource files...\n";
		3438
		3439	reload_facedata;
		3440	reload_archetypes;
		3441	reload_regions;
		3442	reload_treasures;
		3443
		3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
2194	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	3451	or return;
2196		3452
2197	local $/;	3453	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2199		3455
2200	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2201		3457
2202	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2203	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2207	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2208	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2209	};	3465	};
2210	warn $@ if $@;	3466	warn $@ if $@;
2211	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2212	}	3498	}
2213		3499
2214	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2215	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2218	async { Event::one_event };	3518	(async {
		3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
		3521	})->prio (Coro::PRIO_MAX);
2219	};	3522	};
2220		3523
2221	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
2222	db_load;	3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
		3529	db_init;
		3530
		3531	cf::load_settings;
		3532	cf::load_materials;
		3533	cf::init_uuid;
		3534	cf::init_signals;
		3535	cf::init_commands;
		3536	cf::init_skills;
		3537
		3538	cf::init_beforeplay;
		3539
		3540	atomic;
		3541
2223	load_extensions;	3542	load_extensions;
2224	Event::loop;	3543
		3544	utime time, time, $RUNTIMEFILE;
		3545
		3546	# no (long-running) fork's whatsoever before this point(!)
		3547	use POSIX ();
		3548	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3549
		3550	(pop @POST_INIT)->(0) while @POST_INIT;
		3551	};
		3552
		3553	main_loop;
2225	}	3554	}
2226		3555
2227	#############################################################################	3556	#############################################################################
2228	# initialisation and cleanup	3557	# initialisation and cleanup
2229		3558
2230	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2231	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2232	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2234	data => WF_AUTOCANCEL,
2235	signal => $signal,
2236	cb => sub {
2237	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2238	},
2239	);	3565	};
		3566	}
		3567	}
		3568
		3569	sub write_runtime_sync {
		3570	# first touch the runtime file to show we are still running:
		3571	# the fsync below can take a very very long time.
		3572
		3573	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3574
		3575	my $guard = cf::lock_acquire "write_runtime";
		3576
		3577	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3578	or return;
		3579
		3580	my $value = $cf::RUNTIME + 90 + 10;
		3581	# 10 is the runtime save interval, for a monotonic clock
		3582	# 60 allows for the watchdog to kill the server.
		3583
		3584	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3585	and return;
		3586
		3587	# always fsync - this file is important
		3588	aio_fsync $fh
		3589	and return;
		3590
		3591	# touch it again to show we are up-to-date
		3592	aio_utime $fh, undef, undef;
		3593
		3594	close $fh
		3595	or return;
		3596
		3597	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3598	and return;
		3599
		3600	warn "runtime file written.\n";
		3601
2240	}	3602	1
		3603	}
		3604
		3605	our $uuid_lock;
		3606	our $uuid_skip;
		3607
		3608	sub write_uuid_sync($) {
		3609	$uuid_skip ||= $_[0];
		3610
		3611	return if $uuid_lock;
		3612	local $uuid_lock = 1;
		3613
		3614	my $uuid = "$LOCALDIR/uuid";
		3615
		3616	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3617	or return;
		3618
		3619	my $value = uuid_seq uuid_cur;
		3620
		3621	unless ($value) {
		3622	warn "cowardly refusing to write zero uuid value!\n";
		3623	return;
		3624	}
		3625
		3626	my $value = uuid_str $value + $uuid_skip;
		3627	$uuid_skip = 0;
		3628
		3629	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3630	and return;
		3631
		3632	# always fsync - this file is important
		3633	aio_fsync $fh
		3634	and return;
		3635
		3636	close $fh
		3637	or return;
		3638
		3639	aio_rename "$uuid~", $uuid
		3640	and return;
		3641
		3642	warn "uuid file written ($value).\n";
		3643
		3644	1
		3645
		3646	}
		3647
		3648	sub write_uuid($$) {
		3649	my ($skip, $sync) = @_;
		3650
		3651	$sync ? write_uuid_sync $skip
		3652	: async { write_uuid_sync $skip };
2241	}	3653	}
2242		3654
2243	sub emergency_save() {	3655	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2245		3657
2246	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2247		3659
2248	cf::sync_job {	3660	cf::sync_job {
		3661	# this is a trade-off: we want to be very quick here, so
		3662	# save all maps without fsync, and later call a global sync
		3663	# (which in turn might be very very slow)
		3664	local $USE_FSYNC = 0;
		3665
2249	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2250	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2251	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2252	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2253	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2254	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2255	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2256	$pl->save;	3674	$pl->save;
2257	}	3675	}
2258	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2259		3677
2260	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2261	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2262	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	3681	$map->valid or next;
2264	$map->save;	3682	$map->save;
2265	}	3683	}
2266	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
		3685
		3686	warn "emergency_perl_save: begin database checkpoint\n";
		3687	BDB::db_env_txn_checkpoint $DB_ENV;
		3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2267	};	3693	};
2268		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2269	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2270	}	3701	}
2271		3702
		3703	sub post_cleanup {
		3704	my ($make_core) = @_;
		3705
		3706	warn Carp::longmess "post_cleanup backtrace"
		3707	if $make_core;
		3708
		3709	my $fh = pidfile;
		3710	unlink $PIDFILE if <$fh> == $$;
		3711	}
		3712
		3713	# a safer delete_package, copied from Symbol
		3714	sub clear_package($) {
		3715	my $pkg = shift;
		3716
		3717	# expand to full symbol table name if needed
		3718	unless ($pkg =~ /^main::.*::$/) {
		3719	$pkg = "main$pkg" if $pkg =~ /^::/;
		3720	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3721	$pkg .= '::' unless $pkg =~ /::$/;
		3722	}
		3723
		3724	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3725	my $stem_symtab = *{$stem}{HASH};
		3726
		3727	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3728	or return;
		3729
		3730	# clear all symbols
		3731	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3732	for my $name (keys %$leaf_symtab) {
		3733	_gv_clear *{"$pkg$name"};
		3734	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3735	}
		3736	warn "cleared package $pkg\n";#d#
		3737	}
		3738
2272	sub reload() {	3739	sub do_reload_perl() {
2273	# can/must only be called in main	3740	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	3742	warn "can only reload from main coroutine";
2276	return;	3743	return;
2277	}	3744	}
2278		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2279	warn "reloading...";	3751	warn "reloading...";
2280		3752
2281	warn "freezing server";	3753	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	3754
		3755	cf::sync_job {
		3756	cf::write_runtime_sync; # external watchdog should not bark
2283	cf::emergency_save;	3757	cf::emergency_save;
		3758	cf::write_runtime_sync; # external watchdog should not bark
2284		3759
2285	warn "sync database to disk";	3760	warn "syncing database to disk";
2286	cf::db_sync;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		3762
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	3763	# if anything goes wrong in here, we should simply crash as we already saved
2291		3764
2292	warn "cancel all watchers";	3765	warn "flushing outstanding aio requests";
2293	for (Event::all_watchers) {	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2295	}
2296
2297	warn "cancel all extension coros";
2298	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();
2300
2301	warn "remove commands";
2302	%COMMAND = ();
2303
2304	warn "remove ext commands";
2305	%EXTCMD = ();
2306
2307	warn "unload/nuke all extensions";
2308	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";
2310
2311	if (my $cb = $pkg->can ("unload")) {
2312	eval {
2313	$cb->($pkg);
2314	1
2315	} or warn "$pkg unloaded, but with errors: $@";
2316	}	3768	}
2317		3769
		3770	warn "cancelling all extension coros";
		3771	$_->cancel for values %EXT_CORO;
		3772	%EXT_CORO = ();
		3773
		3774	warn "removing commands";
		3775	%COMMAND = ();
		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2318	warn "... nuking $pkg";	3783	warn "... unloading $pkg";
2319	Symbol::delete_package $pkg;
2320	}
2321		3784
2322	warn "unload all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325
2326	warn "removing <$k>";
2327	delete $INC{$k};
2328
2329	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;
2331
2332	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2333	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2334	}	3794	}
2335		3795
2336	Symbol::delete_package $k;	3796	warn "unloading all perl modules loaded from $LIBDIR";
		3797	while (my ($k, $v) = each %INC) {
		3798	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3799
		3800	warn "... unloading $k";
		3801	delete $INC{$k};
		3802
		3803	$k =~ s/\.pm$//;
		3804	$k =~ s/\//::/g;
		3805
		3806	if (my $cb = $k->can ("unload_module")) {
		3807	$cb->();
		3808	}
		3809
		3810	clear_package $k;
2337	}	3811	}
2338		3812
2339	warn "get rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3815	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		3816
2343	warn "unload cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
		3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2345		3820
2346	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2347	# and global variables created in xs	3822	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2349		3824
		3825	warn "unload completed, starting to reload now";
		3826
2350	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2351	require cf;	3828	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2353		3830
2354	warn "load config and database again";	3831	warn "loading config and database again";
2355	cf::cfg_load;	3832	cf::reload_config;
2356	cf::db_load;
2357		3833
2358	warn "load extensions";	3834	warn "loading extensions";
2359	cf::load_extensions;	3835	cf::load_extensions;
2360		3836
		3837	if ($REATTACH_ON_RELOAD) {
2361	warn "reattach attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3839	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3840	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
		3842	warn "reattaching attachments to players";
		3843	reattach $_ for values %PLAYER;
		3844	}
		3845
		3846	warn "running post_init jobs";
		3847	(pop @POST_INIT)->(1) while @POST_INIT;
		3848
		3849	warn "leaving sync_job";
		3850
		3851	1
		3852	} or do {
		3853	warn $@;
		3854	cf::cleanup "error while reloading, exiting.";
		3855	};
		3856
		3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
		3863	};
		3864
		3865	our $RELOAD_WATCHER; # used only during reload
		3866
		3867	sub reload_perl() {
		3868	# doing reload synchronously and two reloads happen back-to-back,
		3869	# coro crashes during coro_state_free->destroy here.
		3870
		3871	$RELOAD_WATCHER ||= cf::async {
		3872	Coro::AIO::aio_wait cache_extensions;
		3873
		3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3875	do_reload_perl;
		3876	undef $RELOAD_WATCHER;
		3877	};
2365	};	3878	};
2366		3879	}
2367	if ($@) {
2368	warn $@;
2369	warn "error while reloading, exiting.";
2370	exit 1;
2371	}
2372
2373	warn "reloaded";
2374	};
2375		3880
2376	register_command "reload" => sub {	3881	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2378		3883
2379	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3885	$who->message ("reloading server.");
		3886	async {
		3887	$Coro::current->{desc} = "perl_reload";
		3888	reload_perl;
		3889	};
2383	}	3890	}
2384	};	3891	};
2385		3892
2386	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2387		3894
2388	$TICK_WATCHER = Event->timer (	3895	my $bug_warning = 0;
2389	reentrant => 0,
2390	prio => 0,
2391	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,
2393	cb => sub {
2394	$NOW = Event::time;
2395		3896
		3897	our @WAIT_FOR_TICK;
		3898	our @WAIT_FOR_TICK_BEGIN;
		3899
		3900	sub wait_for_tick {
		3901	return if tick_inhibit || $Coro::current == $Coro::main;
		3902
		3903	my $signal = new Coro::Signal;
		3904	push @WAIT_FOR_TICK, $signal;
		3905	$signal->wait;
		3906	}
		3907
		3908	sub wait_for_tick_begin {
		3909	return if tick_inhibit || $Coro::current == $Coro::main;
		3910
		3911	my $signal = new Coro::Signal;
		3912	push @WAIT_FOR_TICK_BEGIN, $signal;
		3913	$signal->wait;
		3914	}
		3915
		3916	sub tick {
		3917	if ($Coro::current != $Coro::main) {
		3918	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3919	unless ++$bug_warning > 10;
		3920	return;
		3921	}
		3922
2396	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2397	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;
2399		3924
2400	$WAIT_FOR_TICK->broadcast;	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2402		3927	Coro::async_pool {
2403	# if we are delayed by four ticks or more, skip them all	3928	$Coro::current->{desc} = "runtime saver";
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2405
2406	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;
2408	},
2409	);
2410
2411	IO::AIO::max_poll_time $TICK * 0.2;
2412
2413	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420
2421	$WRITE_RUNTIME_WATCHER = Event->timer (
2422	data => WF_AUTOCANCEL,
2423	after => 0,
2424	interval => 10,
2425	cb => sub {
2426	(Coro::unblock_sub {
2427	write_runtime	3929	write_runtime_sync
2428	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2429	})->();	3931	};
2430	},	3932	}
2431	);	3933
		3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3935	$sig->send;
		3936	}
		3937	while (my $sig = shift @WAIT_FOR_TICK) {
		3938	$sig->send;
		3939	}
		3940
		3941	$LOAD = ($NOW - $TICK_START) / $TICK;
		3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3943
		3944	if (0) {
		3945	if ($NEXT_TICK) {
		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
		3950	}
		3951	}
		3952
		3953	{
		3954	# configure BDB
		3955
		3956	BDB::min_parallel 8;
		3957	BDB::max_poll_reqs $TICK * 0.1;
		3958	$AnyEvent::BDB::WATCHER->priority (1);
		3959
		3960	unless ($DB_ENV) {
		3961	$DB_ENV = BDB::db_env_create;
		3962	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3963	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3964	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3965	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3966	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3967
		3968	cf::sync_job {
		3969	eval {
		3970	BDB::db_env_open
		3971	$DB_ENV,
		3972	$BDBDIR,
		3973	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3975	0666;
		3976
		3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3978	};
		3979
		3980	cf::cleanup "db_env_open(db): $@" if $@;
		3981	};
		3982	}
		3983
		3984	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3985	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3986	};
		3987	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3988	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3989	};
		3990	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3991	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3992	};
		3993	}
		3994
		3995	{
		3996	# configure IO::AIO
		3997
		3998	IO::AIO::min_parallel 8;
		3999	IO::AIO::max_poll_time $TICK * 0.1;
		4000	undef $AnyEvent::AIO::WATCHER;
		4001	}
		4002
		4003	my $_log_backtrace;
		4004
		4005	sub _log_backtrace {
		4006	my ($msg, @addr) = @_;
		4007
		4008	$msg =~ s/\n//;
		4009
		4010	# limit the # of concurrent backtraces
		4011	if ($_log_backtrace < 2) {
		4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
		4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
		4017	my @bt = fork_call {
		4018	@addr = map { sprintf "%x", $_ } @addr;
		4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4021	or die "addr2line: $!";
		4022
		4023	my @funcs;
		4024	my @res = <$fh>;
		4025	chomp for @res;
		4026	while (@res) {
		4027	my ($func, $line) = splice @res, 0, 2, ();
		4028	push @funcs, "[$func] $line";
		4029	}
		4030
		4031	@funcs
		4032	};
		4033
		4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4036	LOG llevInfo, "[ABT] $_\n" for @bt;
		4037	--$_log_backtrace;
		4038	};
		4039	} else {
		4040	LOG llevInfo, "[ABT] $msg\n";
		4041	LOG llevInfo, "[ABT] [suppressed]\n";
		4042	}
		4043	}
		4044
		4045	# load additional modules
		4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
2432		4048
2433	END { cf::emergency_save }	4049	END { cf::emergency_save }
2434		4050
2435	1	4051	1
2436		4052

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