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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.206 by root, Sun Feb 11 22:27:05 2007 UTC vs.
Revision 1.512 by root, Sun Apr 11 04:52:07 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	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 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
27		64
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29		80
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		82
37	our %COMMAND = ();	83	our %COMMAND = ();
38	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
39		85
40	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
44		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	93	our @EVENT;
46	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
47		96
48	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	98	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
51	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	115	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
58		124
59	our %CFG;	125	our %CFG;
60		126
61	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
63		130
64	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		134
73	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
76	binmode STDOUT;	148	binmode STDOUT;
77	binmode STDERR;	149	binmode STDERR;
78		150
79	# read virtual server time, if available	151	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
84	}	156	}
85		157
86	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	159
88	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		162
93	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
94		164
95	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
96		177
97	#############################################################################	178	#############################################################################
98		179
99	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
100		181
…		…
107	=item $cf::RUNTIME	188	=item $cf::RUNTIME
108		189
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	191	every server tick.
111		192
112	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		196
114	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
116		201
117	=item $cf::NOW	202	=item $cf::NOW
118		203
119	The time of the last (current) server tick.	204	The time of the last (current) server tick.
120		205
121	=item $cf::TICK	206	=item $cf::TICK
122		207
123	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
124		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
125	=item %cf::CFG	220	=item %cf::CFG
126		221
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	223	from wherever your confdir points to.
129		224
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		226
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
136		242
137	=back	243	=back
138		244
139	=cut	245	=cut
140		246
141	BEGIN {	247	$Coro::State::WARNHOOK = sub {
142	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	248	my $msg = join "", @_;
144	utf8::encode $msg;
145		249
146	$msg .= "\n"	250	$msg .= "\n"
147	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
148		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
149	LOG llevError, $msg;	255	LOG llevError, $msg;
150	};	256	};
151	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
152		271
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		279
160	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	281	# within the Safe compartment.
162	for my $pkg (qw(	282	for my $pkg (qw(
163	cf::global cf::attachable	283	cf::global cf::attachable
164	cf::object cf::object::player	284	cf::object cf::object::player
165	cf::client cf::player	285	cf::client cf::player
166	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
167	cf::map cf::party cf::region	288	cf::party cf::region
168	)) {	289	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	291	}
172		292
173	$Event::DIED = sub {	293	$EV::DIED = sub {
174	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
175	};	295	};
		296
		297	#############################################################################
176		298
177	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
178		300
179	=over 4	301	=over 4
180		302
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	322	$d
201	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
202	}	324	}
203		325
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
207		327
208	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
209		329
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
218		331
219	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
220		333
221	=cut	334	=cut
222		335
223	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
225	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
226	}	353	}
227		354
228	=item cf::lock_wait $string	355	=item cf::lock_wait $string
229		356
230	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
231		358
232	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
233		360
234	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
237	returned.	364	returned.
238		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
239	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
241		371
242	=cut	372	=item $locked = cf::lock_active $string
243		373
244	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
245		379
246	sub lock_wait($) {	380	sub lock_wait($) {
247	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	382	}
255		383
256	sub lock_acquire($) {	384	sub lock_acquire($) {
257	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
258		387
259	# wait, to be sure we are not locked	388	sub lock_active($) {
260	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	390	}
269		391
270	sub freeze_mainloop {	392	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
272		394
273	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	396	}
275	$WRITE_RUNTIME_WATCHER->start;	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
276	};	462	}
277	$WRITE_RUNTIME_WATCHER->stop;	463	};
278	$TICK_WATCHER->stop;	464
279	$guard	465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
280	}	478	}
281		479
282	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
283		481
284	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		487
290	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
291		489
292	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
293		491
294	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
297		496
298	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
301	fast or be very important.	500	fast or be very important.
…		…
304		503
305	sub sync_job(&) {	504	sub sync_job(&) {
306	my ($job) = @_;	505	my ($job) = @_;
307		506
308	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = AE::time;
		509
309	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
311		512
312	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	514
314	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
315		516
316	my $busy = 1;	517	my $busy = 1;
317	my @res;	518	my @res;
318		519
319	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	522	@res = eval { $job->() };
321	warn $@ if $@;	523	warn $@ if $@;
322	undef $busy;	524	undef $busy;
323	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
324		526
325	while ($busy) {	527	while ($busy) {
326	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
327	}	532	}
		533	}
		534
		535	my $time = AE::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
328		538
329	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
330	} else {	540	} else {
331	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
332		542
…		…
352	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
353		563
354	$coro	564	$coro
355	}	565	}
356		566
357	sub write_runtime {	567	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		568
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	569	Executes the given code block with the given arguments in a seperate
361	or return;	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
362		573
363	my $value = $cf::RUNTIME + 90 + 10;	574	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		575
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	576	sub fork_call(&@) {
368	and return;	577	my ($cb, @args) = @_;
369		578
370	# always fsync - this file is important	579	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	580	# otherwise perl prematurely frees the stuff :/
372	and return;	581	# TODO: investigate and fix (likely this will be rather laborious)
373		582
374	close $fh	583	my @res = Coro::Util::fork_eval {
375	or return;	584	reset_signals;
		585	&$cb
		586	}, @args;
376		587
377	aio_rename "$runtime~", $runtime	588	wantarray ? @res : $res[-1]
378	and return;	589	}
379		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
380	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	754	}
382		755
383	=back	756	=back
384		757
385	=cut	758	=cut
386		759
387	#############################################################################	760	#############################################################################
388		761
389	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
390		763
391	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
394		767
395	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	770	Deliantra).
398		771
399	=over 4	772	=over 4
400		773
401	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
402		775
…		…
446	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
447		820
448	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
450		823
451	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
453		826
454	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
455		828
456	=over 4	829	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
566		939
567	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		944
572	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	946	my $pkg = shift @arg;
574		947
575	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
605	}	978	}
606		979
607	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
608	} else {	981	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	983	}
611		984
612	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
613	}	986	}
614		987
…		…
616	if (ref $_[0]) {	989	if (ref $_[0]) {
617	_object_attach @_;	990	_object_attach @_;
618	} else {	991	} else {
619	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
620	}	993	}
		994	_recalc_want;
621	};	995	};
622		996
623	# all those should be optimised	997	# all those should be optimised
624	sub cf::attachable::detach {	998	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1003	reattach ($obj);
630	} else {	1004	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
632	}	1006	}
		1007	_recalc_want;
633	};	1008	};
634		1009
635	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
637		1012
…		…
652	";	1027	";
653	die if $@;	1028	die if $@;
654	}	1029	}
655		1030
656	our $override;	1031	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1033
659	sub override {	1034	sub override {
660	$override = 1;	1035	$override = 1;
661	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
662	}	1037	}
663		1038
664	sub do_invoke {	1039	sub do_invoke {
665	my $event = shift;	1040	my $event = shift;
666	my $callbacks = shift;	1041	my $callbacks = shift;
667		1042
668	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
669		1044
670	local $override;	1045	local $override;
671		1046
672	for (@$callbacks) {	1047	for (@$callbacks) {
673	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
682	}	1057	}
683		1058
684	0	1059	0
685	}	1060	}
686		1061
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1063
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1065
691	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
692		1067
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1071
697	=back	1072	=back
698		1073
699	=cut	1074	=cut
700		1075
701	#############################################################################	1076	#############################################################################
702	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
703		1120
704	sub reattach {	1121	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1123	my ($obj) = @_;
707		1124
		1125	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1127
710	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
711		1129
712	@$registry = ();	1130	@$registry = ();
713		1131
…		…
728	cf::attachable->attach (	1146	cf::attachable->attach (
729	prio => -1000000,	1147	prio => -1000000,
730	on_instantiate => sub {	1148	on_instantiate => sub {
731	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
732		1150
733	$data = from_json $data;	1151	$data = decode_json $data;
734		1152
735	for (@$data) {	1153	for (@$data) {
736	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
737		1155
738	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1172	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
756		1174
757	sync_job {	1175	sync_job {
758	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
761		1180
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
766	close $fh;	1188	aio_close $fh;
767		1189
768	if (@$objs) {	1190	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1197	aio_fsync $fh;
		1198	}
774	close $fh;	1199	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
776	}	1201	}
777	} else {	1202	} else {
778	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
779	}	1204	}
780		1205
781	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1210	} else {
783	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
784	}	1212	}
785	} else {	1213	} else {
786	aio_unlink $filename;	1214	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
788	}	1216	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1217	};
796	}	1218	}
797		1219
798	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
800		1222
…		…
805		1227
806	sub object_thawer_load {	1228	sub object_thawer_load {
807	my ($filename) = @_;	1229	my ($filename) = @_;
808		1230
809	my ($data, $av);	1231	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1232
814	(aio_load $filename, $data) >= 0	1233	(aio_load $filename, $data) >= 0
815	or return;	1234	or return;
816		1235
817	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
819	or return;	1238	or return;
		1239
820	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
821	}	1242	}
822		1243
		1244	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
825	return ($data, $av);	1248	($data, $av)
826	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
827		1256
828	#############################################################################	1257	#############################################################################
829	# command handling &c	1258	# command handling &c
830		1259
831	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1274	}
846		1275
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1277
849	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
850		1283
851	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
852	called.	1285	called.
853		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
854	=cut	1298	=cut
855		1299
856	sub register_extcmd {	1300	sub register_extcmd {
857	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
858		1302
859	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
860	}	1304	}
861		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
862	cf::player->attach (	1314	cf::player->attach (
863	on_command => sub {	1315	on_unknown_command => sub {
864	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
865		1317
866	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
867	or return;	1319	or return;
868		1320
…		…
873	cf::override;	1325	cf::override;
874	},	1326	},
875	on_extcmd => sub {	1327	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
877		1329
878	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1331
880	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
886	} else {	1347	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1349	}
889		1350
890	cf::override;	1351	cf::override;
891	},	1352	},
892	);	1353	);
893		1354
		1355	# "readahead" all extensions
894	sub load_extension {	1356	sub cache_extensions {
895	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
896		1358
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1362	}
922	die $@;
923	}	1363	};
924		1364
925	push @EXTS, $pkg;	1365	$grp
926	}	1366	}
927		1367
928	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
929	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1373	next unless -r $path;
931	eval {	1374
932	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
933	1	1435	}
934	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
935	}	1446	};
936	}	1447	}
937		1448
938	#############################################################################	1449	#############################################################################
939		1450
		1451	=back
		1452
940	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
941		1454
942	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
943		1456
944	=cut	1457	=cut
945		1458
946	package cf::player;	1459	package cf::player;
947		1460
…		…
949		1462
950	=head3 cf::player	1463	=head3 cf::player
951		1464
952	=over 4	1465	=over 4
953		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
954	=item cf::player::find $login	1481	=item cf::player::find $login
955		1482
956	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
957		1484
958	=cut	1485	=cut
959		1486
960	sub playerdir($) {	1487	sub playerdir($) {
961	cf::localdir	1488	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1490	}
967		1491
968	sub path($) {	1492	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1494
971	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
972	}	1496	}
973		1497
974	sub find_active($) {	1498	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
979		1503
980	sub exists($) {	1504	sub exists($) {
981	my ($login) = @_;	1505	my ($login) = @_;
982		1506
983	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
985	}	1509	}
986		1510
987	sub find($) {	1511	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1513	my $login = $_[0];
990		1514
991	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
992		1516
993	$cf::PLAYER{$_[0]} || do {	1517	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
995	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
997	}	1534	}
998	}	1535	}
999	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
1000		1550
1001	sub save($) {	1551	sub save($) {
1002	my ($pl) = @_;	1552	my ($pl) = @_;
1003		1553
1004	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1009	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1010		1560
1011	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1013		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1014	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1015	Coro::cede;	1570	cf::cede_to_tick;
1016	}	1571	}
1017		1572
1018	sub new($) {	1573	sub new($) {
1019	my ($login) = @_;	1574	my ($login) = @_;
1020		1575
…		…
1026	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1027		1582
1028	$self	1583	$self
1029	}	1584	}
1030		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1031	=item $pl->quit_character	1596	=item $pl->quit_character
1032		1597
1033	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1035		1600
1036	=cut	1601	=cut
1037		1602
1038	sub quit_character {	1603	sub quit_character {
1039	my ($pl) = @_;	1604	my ($pl) = @_;
1040		1605
		1606	my $name = $pl->ob->name;
		1607
1041	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1610
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1048		1617
1049	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1620	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1621	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1622	$pl->destroy;
		1623
		1624	my $prefix = qr<^~\Q$name\E/>;
		1625
		1626	# nuke player maps
		1627	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1628
1054	IO::AIO::aio_rmtree $temp;	1629	IO::AIO::aio_rmtree $temp;
		1630	}
		1631
		1632	=item $pl->kick
		1633
		1634	Kicks a player out of the game. This destroys the connection.
		1635
		1636	=cut
		1637
		1638	sub kick {
		1639	my ($pl, $kicker) = @_;
		1640
		1641	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1642	$pl->killer ("kicked");
		1643	$pl->ns->destroy;
1055	}	1644	}
1056		1645
1057	=item cf::player::list_logins	1646	=item cf::player::list_logins
1058		1647
1059	Returns am arrayref of all valid playernames in the system, can take a	1648	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1649	while and may block, so not sync_job-capable, ever.
1061		1650
1062	=cut	1651	=cut
1063		1652
1064	sub list_logins {	1653	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1654	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1655	or return [];
1067		1656
1068	my @logins;	1657	my @logins;
1069		1658
1070	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1074		1669
1075	utf8::decode $login;	1670	utf8::decode $login;
1076	push @logins, $login;	1671	push @logins, $login;
1077	}	1672	}
1078		1673
…		…
1105	}	1700	}
1106		1701
1107	\@paths	1702	\@paths
1108	}	1703	}
1109		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1111		1710
1112	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1113		1712
1114	=cut	1713	=cut
1115		1714
1116	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1118		1717
1119	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1719	}
1123		1720
1124	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
		1748	my ($path) = @_;
		1749
		1750	my ($match, $specificity);
		1751
		1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
		1760	}
1125		1761
1126	=back	1762	=back
1127
1128		1763
1129	=head3 cf::map	1764	=head3 cf::map
1130		1765
1131	=over 4	1766	=over 4
1132		1767
…		…
1144	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1146		1781
1147	sub generate_random_map {	1782	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1786
1149	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1788	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1187	my ($self, $merge) = @_;	1825	my ($self, $merge) = @_;
1188		1826
1189	# we have to keep some variables in memory intact	1827	# we have to keep some variables in memory intact
1190	local $self->{path};	1828	local $self->{path};
1191	local $self->{load_path};	1829	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1830
1195	$self->SUPER::thawer_merge ($merge);	1831	$self->SUPER::thawer_merge ($merge);
1196	}	1832	}
1197		1833
1198	sub normalise {	1834	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1246	return $self;	1882	return $self;
1247	}	1883	}
1248	}	1884	}
1249		1885
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1887	()
1252	}	1888	}
1253		1889
1254	sub init {	1890	sub init {
1255	my ($self) = @_;	1891	my ($self) = @_;
…		…
1270		1906
1271	# the original (read-only) location	1907	# the original (read-only) location
1272	sub load_path {	1908	sub load_path {
1273	my ($self) = @_;	1909	my ($self) = @_;
1274		1910
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1911	"$MAPDIR/$self->{path}.map"
1276	}	1912	}
1277		1913
1278	# the temporary/swap location	1914	# the temporary/swap location
1279	sub save_path {	1915	sub save_path {
1280	my ($self) = @_;	1916	my ($self) = @_;
1281		1917
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1919	"$TMPDIR/$path.map"
1284	}	1920	}
1285		1921
1286	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1287	sub uniq_path {	1923	sub uniq_path {
1288	my ($self) = @_;	1924	my ($self) = @_;
1289		1925
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1927	"$UNIQUEDIR/$path"
1292	}	1928	}
1293		1929
1294	# and all this just because we cannot iterate over	1930	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1931	my ($self) = @_;
1298		1932
1299	$_->change_map_light ($change)	1933	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1934
		1935	$self->do_decay_objects;
1301	}	1936	}
1302		1937
1303	sub unlink_save {	1938	sub unlink_save {
1304	my ($self) = @_;	1939	my ($self) = @_;
1305		1940
1306	utf8::encode (my $save = $self->save_path);	1941	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1942	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1943	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1944	}
1315		1945
1316	sub load_header_from($) {	1946	sub load_header_from($) {
1317	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1318		1948
1319	utf8::encode $path;	1949	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1951	or return;
		1952
		1953	$self->_load_header ($f)
		1954	or return;
		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
1325		1958
1326	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1327		1960
1328	1	1961	1
1329	}	1962	}
…		…
1368	$self->load_header_orig	2001	$self->load_header_orig
1369	or return;	2002	or return;
1370	$self->prepare_orig;	2003	$self->prepare_orig;
1371	}	2004	}
1372		2005
		2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
		2008
		2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
		2011
1373	1	2012	1
1374	}	2013	}
1375		2014
1376	sub find;	2015	sub find;
1377	sub find {	2016	sub find {
1378	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1379		2018
1380	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1381		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1383		2023
1384	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1387	or return;	2026	or return;
1388		2027
1389	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1390		2029
1391	$map->load_header	2030	$map->load_header
1392	or return;	2031	or return;
1393		2032
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2034	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1397	$map->reset;	2038	$map->reset;
1398	undef $guard;
1399	return find $path;	2039	return find $path;
1400	}	2040	}
1401		2041
1402	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1403	}	2043	}
1404	}	2044	}
1405		2045
1406	sub pre_load { }	2046	sub pre_load { }
1407	sub post_load { }	2047	#sub post_load { } # XS
1408		2048
1409	sub load {	2049	sub load {
1410	my ($self) = @_;	2050	my ($self) = @_;
1411		2051
1412	local $self->{deny_reset} = 1; # loading can take a long time	2052	local $self->{deny_reset} = 1; # loading can take a long time
1413		2053
1414	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1416		2058
		2059	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2061
1419	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1420		2063
1421	$self->alloc;	2064	$self->alloc;
1422		2065
1423	$self->pre_load;	2066	$self->pre_load;
		2067	cf::cede_to_tick;
1424		2068
1425	$self->_load_objects ($self->{load_path}, 1)	2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1426	or return;	2072	or return;
1427		2073
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1429	if delete $self->{load_original};	2075	if delete $self->{load_original};
1430		2076
1431	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2078	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2081	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1436	}	2085	}
1437	}	2086	}
1438		2087
1439	Coro::cede;	2088	$f->resolve_delayed_derefs;
1440		2089
		2090	cf::cede_to_tick;
1441	# now do the right thing for maps	2091	# now do the right thing for maps
1442	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2094	unless $self->difficulty;
1452	Coro::cede;	2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1453	$self->activate;	2102	$self->activate;
		2103	}
		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
		2108	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2109	}
1455		2110
1456	$self->post_load;	2111	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2112	}
1460		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1461	sub customise_for {	2117	sub customise_for {
1462	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1463		2119
1464	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2121	if $self->per_player;
1466		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
1467	$self	2126	$self
1468	}	2127	}
1469		2128
1470	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2130	sub load_neighbours {
1472	my ($map) = @_;	2131	my ($map) = @_;
1473		2132
1474	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1475		2134
1476	for (0 .. 3) {	2135	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1478	or next;	2137	or next;
1479	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1480	or next;	2139	or next;
1481	$neigh->load;	2140	$neigh->load;
1482		2141
		2142	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2145	}
1486		2146
1487	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1489	or next;	2150	or next;
1490	$neigh->load;	2151	$neigh->load;
1491	}	2152	}
1492	}	2153	}
1493		2154
…		…
1498	}	2159	}
1499		2160
1500	sub do_load_sync {	2161	sub do_load_sync {
1501	my ($map) = @_;	2162	my ($map) = @_;
1502		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1503	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1504	}	2168	}
1505		2169
1506	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2171	our $MAP_PREFETCHER = undef;
1508		2172
1509	sub find_async {	2173	sub find_async {
1510	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1511		2175
1512	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1513		2177
1514	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2180	}
1517		2181
1518	undef $MAP_PREFETCH{$path};	2182	$MAP_PREFETCH{$path} |= $load;
		2183
1519	$MAP_PREFETCHER ||= cf::async {	2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
1520	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2189	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2190	$map->load if $v;
		2191	}
1525		2192
1526	delete $MAP_PREFETCH{$path};	2193	delete $MAP_PREFETCH{$k};
1527	}	2194	}
1528	}	2195	}
1529	undef $MAP_PREFETCHER;	2196	undef $MAP_PREFETCHER;
1530	};	2197	};
1531	$MAP_PREFETCHER->prio (6);	2198	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2201	}
1535		2202
1536	sub save {	2203	sub save {
1537	my ($self) = @_;	2204	my ($self) = @_;
1538		2205
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2207
1541	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1542		2209
1543	return unless $self->dirty;	2210	return unless $self->dirty;
1544		2211
…		…
1550	return if $self->{deny_save};	2217	return if $self->{deny_save};
1551		2218
1552	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1553		2220
1554	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1556	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1557		2227
1558	if ($uniq) {	2228	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2231	} else {
…		…
1567	my ($self) = @_;	2237	my ($self) = @_;
1568		2238
1569	# save first because save cedes	2239	# save first because save cedes
1570	$self->save;	2240	$self->save;
1571		2241
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2243
1574	return if $self->players;	2244	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2246	return if $self->{deny_save};
1577		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2252	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2253	}
1581		2254
1582	sub reset_at {	2255	sub reset_at {
1583	my ($self) = @_;	2256	my ($self) = @_;
1584		2257
1585	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1588		2260
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2263
…		…
1602	my ($self) = @_;	2274	my ($self) = @_;
1603		2275
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2277
1606	return if $self->players;	2278	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2279
1609	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
		2281
		2282	$self->in_memory (cf::MAP_SWAPPED);
		2283
		2284	# need to save uniques path
		2285	unless ($self->{deny_save}) {
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2289	if $uniq;
		2290	}
1610		2291
1611	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1612		2293
1613	$self->in_memory (cf::MAP_SWAPPED);	2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2296	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2297
1618	$self->unlink_save;	2298	$self->unlink_save;
1619	$self->destroy;	2299	$self->destroy;
1620	}	2300	}
1621		2301
1622	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1623		2303
1624	sub nuke {	2304	sub nuke {
1625	my ($self) = @_;	2305	my ($self) = @_;
1626		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
1627	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1628		2311
1629	$self->unlink_save;	2312	$self->unlink_save;
1630		2313
1631	bless $self, "cf::map";	2314	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2315	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2319
1637	$cf::MAP{$self->path} = $self;	2320	$cf::MAP{$self->path} = $self;
		2321	}
1638		2322
1639	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1640	}	2360	}
1641		2361
1642	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1643		2363
1644	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2365	instantiated unique items. May block.
1646		2366
1647	=cut	2367	=cut
1648		2368
1649	sub unique_maps() {	2369	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2370	[
1651	or return;	2371	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2372	utf8::decode $_;
1657	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2375	? ()
1660	push @paths, cf::map::normalise $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2378	]
1662
1663	\@paths
1664	}	2379	}
1665		2380
1666	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1667		2412
1668	=back	2413	=back
1669		2414
1670	=head3 cf::object	2415	=head3 cf::object
1671		2416
…		…
1675		2420
1676	=over 4	2421	=over 4
1677		2422
1678	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1679		2424
1680	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1681		2427
1682	=cut	2428	=cut
1683		2429
1684	sub inv_recursive_;	2430	sub inv_recursive_;
1685	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1688		2434
1689	sub inv_recursive {	2435	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1691	}	2437	}
1692		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1693	package cf;	2467	package cf;
1694		2468
1695	=back	2469	=back
1696		2470
1697	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1706		2480
1707	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1708		2496
1709	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2498	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1714		2502
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2504
1717	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1719	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1722	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1723	}	2530	}
1724		2531
1725	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1726		2533
1727	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1740		2547
1741	=item $player_object->enter_link	2548	=item $player_object->enter_link
1742		2549
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2551
1745	The player should be reasonably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1747		2556
1748	Will never block.	2557	Will never block.
1749		2558
1750	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1751		2560
…		…
1774	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1775		2584
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2586
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1780		2589
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2591	}
1783		2592
1784	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1786		2597
1787	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1788		2599
1789	unless ($map) {	2600	unless ($map) {
1790	# restore original map position	2601	# restore original map position
…		…
1801	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1802	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1803		2614
1804	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1807		2618
1808	$map->load;	2619	$map->load;
1809	$map->load_diag;	2620	$map->load_neighbours;
1810		2621
1811	return unless $self->contr->active;	2622	return unless $self->contr->active;
		2623
		2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2625	$self->enter_map ($map, $x, $y);
		2626
		2627	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2628	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2629	}
1815		2630
1816	cf::player->attach (	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2632
1820	# abort map switching before logout	2633	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2634	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2636	the new (success) or old (failed) map position. In either case, $done will
1824	};	2637	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2638
1830	# try to abort aborted map switching on player login :)	2639	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2640	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2641
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1851		2645
1852	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2651
1855	$self->enter_link;	2652	$self->enter_link;
1856		2653
1857	(async {	2654	(async {
		2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
1858	my $map = eval {	2676	my $map = eval {
1859	my $map = cf::map::find $path;	2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
		2681	$map = $check->($map) if $check && $map;
		2682	} else {
		2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
		2685
1861	$map	2686	$map
		2687	};
		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2692	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1866	})->prio (1);	2700	})->prio (1);
1867	}	2701	}
1868		2702
1869	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1870		2704
…		…
1890	}	2724	}
1891		2725
1892	sub prepare_random_map {	2726	sub prepare_random_map {
1893	my ($exit) = @_;	2727	my ($exit) = @_;
1894		2728
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2729	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2730	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2731	# that depends on the exit object
1900		2732
1901	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2735	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2736	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1908	}	2742	}
1909		2743
1910	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1911		2745
1912	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2748	my $meta = "$RANDOMDIR/$md5.meta";
1915		2749
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2752	undef $fh;
1919	aio_rename "$meta~", $meta;	2753	aio_rename "$meta~", $meta;
1920		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1923	}	2761	}
1924	}	2762	}
1925		2763
1926	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
1928		2766
1929	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1930		2768
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2769	$self->enter_link;
1941		2770
1942	(async {	2771	(async {
1943	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1944	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
		2781	prepare_random_map $exit
		2782	if $exit->slaying eq "/!";
		2783	}
		2784
		2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
		2788
1945	$self->goto ($slaying, $hp, $sp);	2789	$self->goto ($map, $x, $y);
1946		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1947	1;	2795	1
1948	}) {	2796	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2801
1954	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2803	$self->leave_link;
1956	}	2804	}
1957	})->prio (1);	2805	})->prio (1);
…		…
1970		2818
1971	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1973		2821
1974	utf8::encode $text;	2822	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2824	}
1977		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
1978		3047
1979	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
1980		3049
1981	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		3053
1985	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	3055	become reliable at some point in the future.
1987		3056
1988	=cut	3057	=cut
1989		3058
1990	sub cf::client::query {	3059	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3068	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3070
2002	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
2004	}	3075	}
2005		3076
2006	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
2007	on_reply => sub {	3083	on_reply => sub {
2008	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
2009		3085
2010	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
2011	# get handled first	3087	# get handled first
…		…
2023	} else {	3099	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3101	}
2026	}	3102	}
2027	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
2028	);	3130	);
2029		3131
2030	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
2031		3133
2032	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048		3150
2049	$coro	3151	$coro
2050	}	3152	}
2051		3153
2052	cf::client->attach (	3154	cf::client->attach (
2053	on_destroy => sub {	3155	on_client_destroy => sub {
2054	my ($ns) = @_;	3156	my ($ns) = @_;
2055		3157
2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2057	},	3159	},
2058	);	3160	);
…		…
2073	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2075		3177
2076	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2077		3179
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2079		3185
2080	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2081		3187
2082	=pod	3188	=pod
2083		3189
2084	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2085		3191
2086	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2087	cf::object::player player	3197	cf::object::player
2088	cf::player peaceful	3198	player
2089	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2090		3205
2091	=cut	3206	=cut
2092		3207
2093	for (	3208	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2098	) {	3215	) {
2099	no strict 'refs';	3216	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2119		3236
2120	my $qcode = $code;	3237	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2123		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2124	local $_;	3244	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;
2126		3245
2127	my $eval =	3246	my $eval =
2128	"do {\n"	3247	"do {\n"
2129	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2130	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2131	. $code	3250	. $code
2132	. "\n}"	3251	. "\n}"
2133	;	3252	;
2134		3253
		3254	if ($CFG{safe_eval}) {
2135	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2136	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2137	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2138		3263
2139	if ($@) {	3264	if ($@) {
2140	warn "$@";	3265	warn "$@";
2141	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2142	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2161	=cut	3286	=cut
2162		3287
2163	sub register_script_function {	3288	sub register_script_function {
2164	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2165		3290
2166	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2167	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2168	}	3293	}
2169		3294
2170	=back	3295	=back
2171		3296
2172	=cut	3297	=cut
2173
2174	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281		3298
2282	#############################################################################	3299	#############################################################################
2283	# the server's init and main functions	3300	# the server's init and main functions
2284		3301
		3302	sub load_facedata($) {
		3303	my ($path) = @_;
		3304
		3305	# HACK to clear player env face cache, we need some signal framework
		3306	# for this (global event?)
		3307	%ext::player_env::MUSIC_FACE_CACHE = ();
		3308
		3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3310
		3311	warn "loading facedata from $path\n";
		3312
		3313	my $facedata;
		3314	0 < aio_load $path, $facedata
		3315	or die "$path: $!";
		3316
		3317	$facedata = Coro::Storable::thaw $facedata;
		3318
		3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3321
		3322	# patch in the exptable
		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3324	$facedata->{resource}{"res/exp_table"} = {
		3325	type => FT_RSRC,
		3326	data => $exp_table,
		3327	hash => (Digest::MD5::md5 $exp_table),
		3328	};
		3329	cf::cede_to_tick;
		3330
		3331	{
		3332	my $faces = $facedata->{faceinfo};
		3333
		3334	while (my ($face, $info) = each %$faces) {
		3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3336
		3337	cf::face::set_visibility $idx, $info->{visibility};
		3338	cf::face::set_magicmap $idx, $info->{magicmap};
		3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3341
		3342	cf::cede_to_tick;
		3343	}
		3344
		3345	while (my ($face, $info) = each %$faces) {
		3346	next unless $info->{smooth};
		3347
		3348	my $idx = cf::face::find $face
		3349	or next;
		3350
		3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3354	} else {
		3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
		3392	1
		3393	}
		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
2285	sub load_resources {	3423	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3439	or die "unable to load regions file\n";
2288	}
2289		3440
2290	sub cfg_load {	3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
		3462	sub reload_resources {
		3463	warn "reloading resource files...\n";
		3464
		3465	reload_facedata;
		3466	reload_archetypes;
		3467	reload_regions;
		3468	reload_treasures;
		3469
		3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3477	or return;
2293		3478
2294	local $/;	3479	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2296		3481
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3483
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	3491	};
2307	warn $@ if $@;	3492	warn $@ if $@;
2308	}	3493	}
2309	}
2310		3494
2311	sub init {	3495	warn "finished reloading resource files\n";
2312	load_resources;	3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3524	}
2314		3525
2315	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2316	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3544	(async {
2320	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3547	})->prio (Coro::PRIO_MAX);
2322	};	3548	};
2323		3549
2324	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
		3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2326	load_extensions;	3568	load_extensions;
2327		3569
2328	$TICK_WATCHER->start;	3570	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2330	}	3580	}
2331		3581
2332	#############################################################################	3582	#############################################################################
2333	# initialisation and cleanup	3583	# initialisation and cleanup
2334		3584
2335	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2336	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3589	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2345	},
2346	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = AE::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3629
2347	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2348	}	3681	}
2349		3682
2350	sub emergency_save() {	3683	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2352		3685
2353	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2354		3687
2355	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2356	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3702	$pl->save;
2364	}	3703	}
2365	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2366		3705
2367	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3709	$map->valid or next;
2371	$map->save;	3710	$map->save;
2372	}	3711	}
2373	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
		3713
		3714	warn "emergency_perl_save: begin database checkpoint\n";
		3715	BDB::db_env_txn_checkpoint $DB_ENV;
		3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2374	};	3721	};
2375		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2376	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2377	}	3729	}
2378		3730
		3731	sub post_cleanup {
		3732	my ($make_core) = @_;
		3733
		3734	warn Carp::longmess "post_cleanup backtrace"
		3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
2379	sub reload() {	3767	sub do_reload_perl() {
2380	# can/must only be called in main	3768	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3770	warn "can only reload from main coroutine";
2383	return;	3771	return;
2384	}	3772	}
2385		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = AE::time;
		3777
		3778	while ($RELOAD) {
2386	warn "reloading...";	3779	warn "reloading...";
2387		3780
2388	warn "cancelling server ticker";	3781	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3782
		3783	cf::sync_job {
		3784	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3785	cf::emergency_save;
		3786	cf::write_runtime_sync; # external watchdog should not bark
2392		3787
2393	eval {	3788	warn "syncing database to disk";
		3789	BDB::db_env_txn_checkpoint $DB_ENV;
		3790
2394	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2395		3792
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3793	warn "flushing outstanding aio requests";
2405	for (;;) {	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3796	}
2432		3797
2433	warn "... nuking $pkg";	3798	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3799	$_->cancel for values %EXT_CORO;
2435	}	3800	%EXT_CORO = ();
2436		3801
2437	warn "unloading all perl modules loaded from $LIBDIR";	3802	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3803	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3811	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3812
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2448	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2449	}	3822	}
2450		3823
2451	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2452	}	3839	}
2453		3840
2454	warn "getting rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3844
2458	warn "unloading cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3848
2461	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3850	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2464		3852
2465	warn "unload completed, starting to reload now";	3853	warn "unload completed, starting to reload now";
2466		3854
2467	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2468	require cf;	3856	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2470		3858
2471	warn "loading config and database again";	3859	warn "loading config and database again";
2472	cf::cfg_load;	3860	cf::reload_config;
2473	cf::db_load;
2474		3861
2475	warn "loading extensions";	3862	warn "loading extensions";
2476	cf::load_extensions;	3863	cf::load_extensions;
2477		3864
		3865	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3867	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3868	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
		3870	warn "reattaching attachments to players";
		3871	reattach $_ for values %PLAYER;
		3872	}
2482		3873
2483	warn "loading reloadable resources";	3874	warn "running post_init jobs";
2484	load_resources;	3875	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3876
2486	warn "restarting server ticker";	3877	warn "leaving sync_job";
2487		3878
2488	$TICK_WATCHER->start;	3879	1
		3880	} or do {
		3881	warn $@;
		3882	cf::cleanup "error while reloading, exiting.";
		3883	};
		3884
		3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = AE::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
2489	};	3906	};
2490		3907	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3908
2502	register_command "reload" => sub {	3909	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2504		3911
2505	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3913	$who->message ("reloading server.");
2507		3914	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3915	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3916	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3917	};
2520	}	3918	}
2521	};	3919	};
2522		3920
2523	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2524		3922
2525	my $bug_warning = 0;	3923	my $bug_warning = 0;
2526		3924
2527	$TICK_WATCHER = Event->timer (	3925	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3926	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3927
2530	prio => 0,	3928	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3930
2533	cb => sub {	3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
2534	if ($Coro::current != $Coro::main) {	3945	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3947	unless ++$bug_warning > 10;
2537	return;	3948	return;
2538	}	3949	}
2539		3950
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3952
2546	$WAIT_FOR_TICK->broadcast;	3953	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2548		3954
2549	Event::sweep;	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2550	Coro::cede_notself;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3957	Coro::async_pool {
		3958	$Coro::current->{desc} = "runtime saver";
		3959	write_runtime_sync
		3960	or warn "ERROR: unable to write runtime file: $!";
		3961	};
		3962	}
		3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
2551		3979	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3980	}
2561	);	3981	}
2562		3982
2563	{	3983	{
2564	BDB::max_poll_time $TICK * 0.1;	3984	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3985
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3986	BDB::min_parallel 16;
2574		3987	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3988	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3989
2590	unless ($DB_ENV) {	3990	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3997
2593	cf::sync_job {	3998	cf::sync_job {
		3999	eval {
2594	BDB::db_env_open	4000	BDB::db_env_open
2595	$DB_ENV,	4001	$DB_ENV,
2596	$BDB_ENV_DIR,	4002	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	4005	0666;
2600		4006
2601	cf::cleanup "$!" if $!;	4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		4008	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	4009
		4010	cf::cleanup "db_env_open(db): $@" if $@;
2604	};	4011	};
2605	}	4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
2606	}	4023	}
2607		4024
2608	{	4025	{
		4026	# configure IO::AIO
		4027
2609	IO::AIO::min_parallel 8;	4028	IO::AIO::min_parallel 8;
2610
2611	undef $Coro::AIO::WATCHER;
2612	IO::AIO::max_poll_time $TICK * 0.1;	4029	IO::AIO::max_poll_time $TICK * 0.1;
2613	$AIO_POLL_WATCHER = Event->io (	4030	undef $AnyEvent::AIO::WATCHER;
2614	reentrant => 0,
2615	fd => IO::AIO::poll_fileno,
2616	poll => 'r',
2617	prio => 6,
2618	data => WF_AUTOCANCEL,
2619	cb => \&IO::AIO::poll_cb,
2620	);
2621	}	4031	}
2622		4032
2623	$WRITE_RUNTIME_WATCHER = Event->timer (	4033	my $_log_backtrace;
2624	reentrant => 0,	4034
2625	data => WF_AUTOCANCEL,	4035	sub _log_backtrace {
2626	after => 1,	4036	my ($msg, @addr) = @_;
2627	interval => 10,	4037
2628	prio => 6, # keep it lowest so it acts like a watchdog	4038	$msg =~ s/\n//;
2629	cb => Coro::unblock_sub {	4039
2630	write_runtime	4040	# limit the # of concurrent backtraces
2631	or warn "ERROR: unable to write runtime file: $!";	4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
2632	},	4072	}
2633	);	4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
2634		4078
2635	END { cf::emergency_save }	4079	END { cf::emergency_save }
2636		4080
2637	1	4081	1
2638		4082

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