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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 1.490 by root, Sat Oct 24 06:16:40 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
20	use BDB ();	55	use BDB ();
21	use Data::Dumper;	56	use Data::Dumper;
22	use Digest::MD5;	57	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	warn "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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
276	};	456	}
277	$WRITE_RUNTIME_WATCHER->stop;	457	};
278	$TICK_WATCHER->stop;	458
279	$guard	459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
280	}	471	}
281		472
282	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
283		474
284	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		480
290	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
291		482
292	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
293		484
294	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
297		489
298	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
301	fast or be very important.	493	fast or be very important.
…		…
304		496
305	sub sync_job(&) {	497	sub sync_job(&) {
306	my ($job) = @_;	498	my ($job) = @_;
307		499
308	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
309	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
311		505
312	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	507
314	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
315		509
316	my $busy = 1;	510	my $busy = 1;
317	my @res;	511	my @res;
318		512
319	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	515	@res = eval { $job->() };
321	warn $@ if $@;	516	warn $@ if $@;
322	undef $busy;	517	undef $busy;
323	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
324		519
325	while ($busy) {	520	while ($busy) {
326	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
327	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
328		531
329	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
330	} else {	533	} else {
331	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
332		535
…		…
352	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
353		556
354	$coro	557	$coro
355	}	558	}
356		559
357	sub write_runtime {	560	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		561
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
361	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
362		566
363	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		568
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
368	and return;	570	my ($cb, @args) = @_;
369		571
370	# always fsync - this file is important	572	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	573	# otherwise perl prematurely frees the stuff :/
372	and return;	574	# TODO: investigate and fix (likely this will be rather laborious)
373		575
374	close $fh	576	my @res = Coro::Util::fork_eval {
375	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
376		580
377	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
378	and return;	582	}
379		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
380	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	747	}
382		748
383	=back	749	=back
384		750
385	=cut	751	=cut
386		752
387	#############################################################################	753	#############################################################################
388		754
389	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
390		756
391	Many objects in crossfire are so-called attachable objects. That means you can	757	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")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
394		760
395	In the following description, CLASS can be any of C<global>, C<object>	761	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	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	763	Deliantra).
398		764
399	=over 4	765	=over 4
400		766
401	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
402		768
…		…
446	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
447		813
448	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
450		816
451	Some classes such as crossfire maps and objects can specify attachments	817	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.	818	that are attached at load/instantiate time, thus the need for a name.
453		819
454	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
455		821
456	=over 4	822	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
566		932
567	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		937
572	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	939	my $pkg = shift @arg;
574		940
575	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
605	}	971	}
606		972
607	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
608	} else {	974	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	976	}
611		977
612	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
613	}	979	}
614		980
…		…
616	if (ref $_[0]) {	982	if (ref $_[0]) {
617	_object_attach @_;	983	_object_attach @_;
618	} else {	984	} else {
619	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
620	}	986	}
		987	_recalc_want;
621	};	988	};
622		989
623	# all those should be optimised	990	# all those should be optimised
624	sub cf::attachable::detach {	991	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
629	reattach ($obj);	996	reattach ($obj);
630	} else {	997	} else {
631	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
632	}	999	}
		1000	_recalc_want;
633	};	1001	};
634		1002
635	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
637		1005
…		…
652	";	1020	";
653	die if $@;	1021	die if $@;
654	}	1022	}
655		1023
656	our $override;	1024	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1026
659	sub override {	1027	sub override {
660	$override = 1;	1028	$override = 1;
661	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
662	}	1030	}
663		1031
664	sub do_invoke {	1032	sub do_invoke {
665	my $event = shift;	1033	my $event = shift;
666	my $callbacks = shift;	1034	my $callbacks = shift;
667		1035
668	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
669		1037
670	local $override;	1038	local $override;
671		1039
672	for (@$callbacks) {	1040	for (@$callbacks) {
673	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
682	}	1050	}
683		1051
684	0	1052	0
685	}	1053	}
686		1054
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1056
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1058
691	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
692		1060
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	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	1062	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1064
697	=back	1065	=back
698		1066
699	=cut	1067	=cut
700		1068
701	#############################################################################	1069	#############################################################################
702	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
703		1113
704	sub reattach {	1114	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1116	my ($obj) = @_;
707		1117
		1118	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1120
710	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
711		1122
712	@$registry = ();	1123	@$registry = ();
713		1124
…		…
728	cf::attachable->attach (	1139	cf::attachable->attach (
729	prio => -1000000,	1140	prio => -1000000,
730	on_instantiate => sub {	1141	on_instantiate => sub {
731	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
732		1143
733	$data = from_json $data;	1144	$data = decode_json $data;
734		1145
735	for (@$data) {	1146	for (@$data) {
736	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
737		1148
738	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1165	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
756		1167
757	sync_job {	1168	sync_job {
758	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
761		1173
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	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;
		1179	aio_fsync $fh;
		1180	}
766	close $fh;	1181	aio_close $fh;
767		1182
768	if (@$objs) {	1183	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	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;
		1190	aio_fsync $fh;
		1191	}
774	close $fh;	1192	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
776	}	1194	}
777	} else {	1195	} else {
778	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
779	}	1197	}
780		1198
781	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1203	} else {
783	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
784	}	1205	}
785	} else {	1206	} else {
786	aio_unlink $filename;	1207	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
788	}	1209	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1210	};
796	}	1211	}
797		1212
798	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
800		1215
…		…
805		1220
806	sub object_thawer_load {	1221	sub object_thawer_load {
807	my ($filename) = @_;	1222	my ($filename) = @_;
808		1223
809	my ($data, $av);	1224	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1225
814	(aio_load $filename, $data) >= 0	1226	(aio_load $filename, $data) >= 0
815	or return;	1227	or return;
816		1228
817	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
819	or return;	1231	or return;
		1232
820	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
821	}	1235	}
822		1236
		1237	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
825	return ($data, $av);	1241	($data, $av)
826	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
827		1249
828	#############################################################################	1250	#############################################################################
829	# command handling &c	1251	# command handling &c
830		1252
831	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1267	}
846		1268
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1270
849	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
850		1276
851	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
852	called.	1278	called.
853		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
854	=cut	1291	=cut
855		1292
856	sub register_extcmd {	1293	sub register_extcmd {
857	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
858		1295
859	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
860	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
861		1306
862	cf::player->attach (	1307	cf::player->attach (
863	on_command => sub {	1308	on_command => sub {
864	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
865		1310
…		…
873	cf::override;	1318	cf::override;
874	},	1319	},
875	on_extcmd => sub {	1320	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
877		1322
878	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1324
880	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
886	} else {	1340	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1342	}
889		1343
890	cf::override;	1344	cf::override;
891	},	1345	},
892	);	1346	);
893		1347
		1348	# "readahead" all extensions
894	sub load_extension {	1349	sub cache_extensions {
895	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
896		1351
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1354	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	}	1355	}
922	die $@;
923	}	1356	};
924		1357
925	push @EXTS, $pkg;	1358	$grp
926	}	1359	}
927		1360
928	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
929	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1366	next unless -r $path;
931	eval {	1367
932	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
933	1	1424	}
934	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
935	}	1430	};
936	}	1431	}
937		1432
938	#############################################################################	1433	#############################################################################
939		1434
		1435	=back
		1436
940	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
941		1438
942	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
943		1440
944	=cut	1441	=cut
945		1442
946	package cf::player;	1443	package cf::player;
947		1444
…		…
949		1446
950	=head3 cf::player	1447	=head3 cf::player
951		1448
952	=over 4	1449	=over 4
953		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
954	=item cf::player::find $login	1465	=item cf::player::find $login
955		1466
956	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
957		1468
958	=cut	1469	=cut
959		1470
960	sub playerdir($) {	1471	sub playerdir($) {
961	cf::localdir	1472	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1474	}
967		1475
968	sub path($) {	1476	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1478
971	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
972	}	1480	}
973		1481
974	sub find_active($) {	1482	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
979		1487
980	sub exists($) {	1488	sub exists($) {
981	my ($login) = @_;	1489	my ($login) = @_;
982		1490
983	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
985	}	1493	}
986		1494
987	sub find($) {	1495	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1497	my $login = $_[0];
990		1498
991	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
992		1500
993	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
995	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
997	}	1518	}
998	}	1519	}
999	}	1520	}
1000		1521
…		…
1009	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1010		1531
1011	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1013		1534
		1535	cf::get_slot 0.01;
		1536
1014	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1015	Coro::cede;	1538	cf::cede_to_tick;
1016	}	1539	}
1017		1540
1018	sub new($) {	1541	sub new($) {
1019	my ($login) = @_;	1542	my ($login) = @_;
1020		1543
…		…
1026	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1027		1550
1028	$self	1551	$self
1029	}	1552	}
1030		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1031	=item $pl->quit_character	1564	=item $pl->quit_character
1032		1565
1033	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1035		1568
1036	=cut	1569	=cut
1037		1570
1038	sub quit_character {	1571	sub quit_character {
1039	my ($pl) = @_;	1572	my ($pl) = @_;
1040		1573
		1574	my $name = $pl->ob->name;
		1575
1041	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1578
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1048		1585
1049	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1054	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1055	}	1612	}
1056		1613
1057	=item cf::player::list_logins	1614	=item cf::player::list_logins
1058		1615
1059	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1061		1618
1062	=cut	1619	=cut
1063		1620
1064	sub list_logins {	1621	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1623	or return [];
1067		1624
1068	my @logins;	1625	my @logins;
1069		1626
1070	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1074		1637
1075	utf8::decode $login;	1638	utf8::decode $login;
1076	push @logins, $login;	1639	push @logins, $login;
1077	}	1640	}
1078		1641
…		…
1105	}	1668	}
1106		1669
1107	\@paths	1670	\@paths
1108	}	1671	}
1109		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1111		1678
1112	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1113		1680
1114	=cut	1681	=cut
1115		1682
1116	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1118		1685
1119	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1687	}
1123		1688
1124	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1125		1729
1126	=back	1730	=back
1127
1128		1731
1129	=head3 cf::map	1732	=head3 cf::map
1130		1733
1131	=over 4	1734	=over 4
1132		1735
…		…
1144	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1146		1749
1147	sub generate_random_map {	1750	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1149	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1756	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1188		1794
1189	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1190	local $self->{path};	1796	local $self->{path};
1191	local $self->{load_path};	1797	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1798
1195	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1196	}	1800	}
1197		1801
1198	sub normalise {	1802	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1246	return $self;	1850	return $self;
1247	}	1851	}
1248	}	1852	}
1249		1853
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1855	()
1252	}	1856	}
1253		1857
1254	sub init {	1858	sub init {
1255	my ($self) = @_;	1859	my ($self) = @_;
…		…
1270		1874
1271	# the original (read-only) location	1875	# the original (read-only) location
1272	sub load_path {	1876	sub load_path {
1273	my ($self) = @_;	1877	my ($self) = @_;
1274		1878
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1276	}	1880	}
1277		1881
1278	# the temporary/swap location	1882	# the temporary/swap location
1279	sub save_path {	1883	sub save_path {
1280	my ($self) = @_;	1884	my ($self) = @_;
1281		1885
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1284	}	1888	}
1285		1889
1286	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1287	sub uniq_path {	1891	sub uniq_path {
1288	my ($self) = @_;	1892	my ($self) = @_;
1289		1893
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1292	}	1896	}
1293		1897
1294	# and all this just because we cannot iterate over	1898	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1899	my ($self) = @_;
1298		1900
1299	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1301	}	1904	}
1302		1905
1303	sub unlink_save {	1906	sub unlink_save {
1304	my ($self) = @_;	1907	my ($self) = @_;
1305		1908
1306	utf8::encode (my $save = $self->save_path);	1909	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1911	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	}	1912	}
1315		1913
1316	sub load_header_from($) {	1914	sub load_header_from($) {
1317	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1318		1916
1319	utf8::encode $path;	1917	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1325		1926
1326	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1327		1928
1328	1	1929	1
1329	}	1930	}
…		…
1368	$self->load_header_orig	1969	$self->load_header_orig
1369	or return;	1970	or return;
1370	$self->prepare_orig;	1971	$self->prepare_orig;
1371	}	1972	}
1372		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1373	1	1980	1
1374	}	1981	}
1375		1982
1376	sub find;	1983	sub find;
1377	sub find {	1984	sub find {
1378	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1379		1986
1380	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1381		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1383		1991
1384	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1387	or return;	1994	or return;
1388		1995
1389	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1390		1997
1391	$map->load_header	1998	$map->load_header
1392	or return;	1999	or return;
1393		2000
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1397	$map->reset;	2006	$map->reset;
1398	undef $guard;
1399	return find $path;	2007	return find $path;
1400	}	2008	}
1401		2009
1402	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1403	}	2011	}
…		…
1410	my ($self) = @_;	2018	my ($self) = @_;
1411		2019
1412	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1413		2021
1414	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1416		2026
		2027	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2029
1419	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1420		2031
1421	$self->alloc;	2032	$self->alloc;
1422		2033
1423	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1424		2036
1425	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1426	or return;	2040	or return;
1427		2041
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1429	if delete $self->{load_original};	2043	if delete $self->{load_original};
1430		2044
1431	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2046	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2049	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1436	}	2053	}
1437	}	2054	}
1438		2055
1439	Coro::cede;	2056	$f->resolve_delayed_derefs;
1440		2057
		2058	cf::cede_to_tick;
1441	# now do the right thing for maps	2059	# now do the right thing for maps
1442	$self->link_multipart_objects;	2060	$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)	2061	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2062	unless $self->difficulty;
1452	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1453	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2077	}
1455		2078
1456	$self->post_load;	2079	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2080	}
1460		2081
1461	sub customise_for {	2082	sub customise_for {
1462	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1463		2084
1464	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2086	if $self->per_player;
1466		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1467	$self	2091	$self
1468	}	2092	}
1469		2093
1470	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2095	sub load_neighbours {
1472	my ($map) = @_;	2096	my ($map) = @_;
1473		2097
1474	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1475		2099
1476	for (0 .. 3) {	2100	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1478	or next;	2102	or next;
1479	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1480	or next;	2104	or next;
1481	$neigh->load;	2105	$neigh->load;
1482		2106
		2107	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2110	}
1486		2111
1487	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1489	or next;	2115	or next;
1490	$neigh->load;	2116	$neigh->load;
1491	}	2117	}
1492	}	2118	}
1493		2119
…		…
1498	}	2124	}
1499		2125
1500	sub do_load_sync {	2126	sub do_load_sync {
1501	my ($map) = @_;	2127	my ($map) = @_;
1502		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1503	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1504	}	2133	}
1505		2134
1506	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1508		2137
1509	sub find_async {	2138	sub find_async {
1510	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1511		2140
1512	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1513		2142
1514	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2145	}
1517		2146
1518	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1519	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1520	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2154	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2155	$map->load if $v;
		2156	}
1525		2157
1526	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1527	}	2159	}
1528	}	2160	}
1529	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1530	};	2162	};
1531	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2166	}
1535		2167
1536	sub save {	2168	sub save {
1537	my ($self) = @_;	2169	my ($self) = @_;
1538		2170
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2172
1541	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1542		2174
1543	return unless $self->dirty;	2175	return unless $self->dirty;
1544		2176
…		…
1550	return if $self->{deny_save};	2182	return if $self->{deny_save};
1551		2183
1552	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1553		2185
1554	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1556	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1557		2192
1558	if ($uniq) {	2193	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2196	} else {
…		…
1567	my ($self) = @_;	2202	my ($self) = @_;
1568		2203
1569	# save first because save cedes	2204	# save first because save cedes
1570	$self->save;	2205	$self->save;
1571		2206
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2208
1574	return if $self->players;	2209	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2211	return if $self->{deny_save};
1577		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2217	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2218	}
1581		2219
1582	sub reset_at {	2220	sub reset_at {
1583	my ($self) = @_;	2221	my ($self) = @_;
1584		2222
1585	# TODO: safety, remove and allow resettable per-player maps	2223	# 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};	2224	return 1e99 if $self->{deny_reset};
1588		2225
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2228
…		…
1602	my ($self) = @_;	2239	my ($self) = @_;
1603		2240
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2242
1606	return if $self->players;	2243	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2244
1609	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1610		2256
1611	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1612		2258
1613	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2261	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2262
1618	$self->unlink_save;	2263	$self->unlink_save;
1619	$self->destroy;	2264	$self->destroy;
1620	}	2265	}
1621		2266
1622	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1623		2268
1624	sub nuke {	2269	sub nuke {
1625	my ($self) = @_;	2270	my ($self) = @_;
1626		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1627	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1628		2276
1629	$self->unlink_save;	2277	$self->unlink_save;
1630		2278
1631	bless $self, "cf::map";	2279	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2284
1637	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1638		2287
1639	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1640	}	2325	}
1641		2326
1642	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1643		2328
1644	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2330	instantiated unique items. May block.
1646		2331
1647	=cut	2332	=cut
1648		2333
1649	sub unique_maps() {	2334	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1651	or return;	2336	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2337	utf8::decode $_;
1657	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2340	? ()
1660	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2343	]
1662
1663	\@paths
1664	}	2344	}
1665		2345
1666	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles>). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	next if $dir eq "/styles";
		2361
		2362	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2363	or return;
		2364
		2365	for (@$files) {
		2366	s/\.map$// or next;
		2367	utf8::decode $_;
		2368	push @maps, "$dir/$_";
		2369	}
		2370
		2371	push @dirs, map "$dir/$_", @$dirs;
		2372	}
		2373
		2374	\@maps
		2375	}
1667		2376
1668	=back	2377	=back
1669		2378
1670	=head3 cf::object	2379	=head3 cf::object
1671		2380
…		…
1675		2384
1676	=over 4	2385	=over 4
1677		2386
1678	=item $ob->inv_recursive	2387	=item $ob->inv_recursive
1679		2388
1680	Returns the inventory of the object _and_ their inventories, recursively.	2389	Returns the inventory of the object I<and> their inventories, recursively,
		2390	but I<not> the object itself.
1681		2391
1682	=cut	2392	=cut
1683		2393
1684	sub inv_recursive_;	2394	sub inv_recursive_;
1685	sub inv_recursive_ {	2395	sub inv_recursive_ {
…		…
1688		2398
1689	sub inv_recursive {	2399	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2400	inv_recursive_ inv $_[0]
1691	}	2401	}
1692		2402
		2403	=item $ref = $ob->ref
		2404
		2405	Creates and returns a persistent reference to an object that can be stored as a string.
		2406
		2407	=item $ob = cf::object::deref ($refstring)
		2408
		2409	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2410	even if the object actually exists. May block.
		2411
		2412	=cut
		2413
		2414	sub deref {
		2415	my ($ref) = @_;
		2416
		2417	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2418	my ($uuid, $name) = ($1, $2);
		2419	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2420	or return;
		2421	$pl->ob->uuid eq $uuid
		2422	or return;
		2423
		2424	$pl->ob
		2425	} else {
		2426	warn "$ref: cannot resolve object reference\n";
		2427	undef
		2428	}
		2429	}
		2430
1693	package cf;	2431	package cf;
1694		2432
1695	=back	2433	=back
1696		2434
1697	=head3 cf::object::player	2435	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2441	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	2442	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1706		2444
1707	=cut	2445	=cut
		2446
		2447	our $SAY_CHANNEL = {
		2448	id => "say",
		2449	title => "Map",
		2450	reply => "say ",
		2451	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2452	};
		2453
		2454	our $CHAT_CHANNEL = {
		2455	id => "chat",
		2456	title => "Chat",
		2457	reply => "chat ",
		2458	tooltip => "Player chat and shouts, global to the server.",
		2459	};
1708		2460
1709	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2462	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2463	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1714		2466
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2468
1717	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1719	} else {	2472	} else {
		2473	my $pl = $self->contr;
		2474
		2475	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2476	my $dialog = $pl->{npc_dialog};
		2477	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2478
		2479	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1722	}	2483	}
		2484	}
		2485
		2486	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2487
		2488	=cut
		2489
		2490	sub cf::object::send_msg {
		2491	my $pl = shift->contr
		2492	or return;
		2493	$pl->send_msg (@_);
1723	}	2494	}
1724		2495
1725	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1726		2497
1727	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1740		2511
1741	=item $player_object->enter_link	2512	=item $player_object->enter_link
1742		2513
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2514	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2515
1745	The player should be reasonably safe there for short amounts of time. You	2516	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.	2517	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2518	though, as the palyer cannot control the character while it is on the link
		2519	map.
1747		2520
1748	Will never block.	2521	Will never block.
1749		2522
1750	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1751		2524
…		…
1774	$self->deactivate_recursive;	2547	$self->deactivate_recursive;
1775		2548
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2550
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1780		2553
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2555	}
1783		2556
1784	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1786		2561
1787	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1788		2563
1789	unless ($map) {	2564	unless ($map) {
1790	# restore original map position	2565	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1807		2582
1808	$map->load;	2583	$map->load;
1809	$map->load_diag;	2584	$map->load_neighbours;
1810		2585
1811	return unless $self->contr->active;	2586	return unless $self->contr->active;
		2587
		2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2589	$self->enter_map ($map, $x, $y);
		2590
		2591	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2592	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2593	}
1815		2594
1816	cf::player->attach (	2595	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2596
1820	# abort map switching before logout	2597	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2598	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2600	the new (success) or old (failed) map position. In either case, $done will
1824	};	2601	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2602
1830	# try to abort aborted map switching on player login :)	2603	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2604	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		2605
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2606	=cut
		2607
		2608	our $GOTOGEN;
1851		2609
1852	sub cf::object::player::goto {	2610	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2611	my ($self, $path, $x, $y, $check, $done) = @_;
		2612
		2613	# do generation counting so two concurrent goto's will be executed in-order
		2614	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2615
1855	$self->enter_link;	2616	$self->enter_link;
1856		2617
1857	(async {	2618	(async {
		2619	$Coro::current->{desc} = "player::goto $path $x $y";
		2620
		2621	# *tag paths override both path and x|y
		2622	if ($path =~ /^\*(.*)$/) {
		2623	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2624	my $ob = $obs[rand @obs];
		2625
		2626	# see if we actually can go there
		2627	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2628	$ob = $obs[rand @obs];
		2629	} else {
		2630	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632	# else put us there anyways for now #d#
		2633
		2634	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2635	} else {
		2636	($path, $x, $y) = (undef, undef, undef);
		2637	}
		2638	}
		2639
1858	my $map = eval {	2640	my $map = eval {
1859	my $map = cf::map::find $path;	2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2644	$map = $map->customise_for ($self);
		2645	$map = $check->($map) if $check && $map;
		2646	} else {
		2647	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649
1861	$map	2650	$map
		2651	};
		2652
		2653	if ($@) {
		2654	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2655	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2656	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1866	})->prio (1);	2664	})->prio (1);
1867	}	2665	}
1868		2666
1869	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1870		2668
…		…
1890	}	2688	}
1891		2689
1892	sub prepare_random_map {	2690	sub prepare_random_map {
1893	my ($exit) = @_;	2691	my ($exit) = @_;
1894		2692
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2693	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2694	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2695	# that depends on the exit object
1900		2696
1901	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2699	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2700	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
1908	}	2706	}
1909		2707
1910	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
1911		2709
1912	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2712	my $meta = "$RANDOMDIR/$md5.meta";
1915		2713
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2716	undef $fh;
1919	aio_rename "$meta~", $meta;	2717	aio_rename "$meta~", $meta;
1920		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
1923	}	2725	}
1924	}	2726	}
1925		2727
1926	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
1928		2730
1929	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
1930		2732
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;	2733	$self->enter_link;
1941		2734
1942	(async {	2735	(async {
1943	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
1944	unless (eval {	2738	unless (eval {
		2739	$self->deactivate_recursive; # just to be sure
		2740
		2741	# random map handling
		2742	{
		2743	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2744
		2745	prepare_random_map $exit
		2746	if $exit->slaying eq "/!";
		2747	}
		2748
		2749	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2750	my $x = $exit->stats->hp;
		2751	my $y = $exit->stats->sp;
		2752
1945	$self->goto ($slaying, $hp, $sp);	2753	$self->goto ($map, $x, $y);
1946		2754
		2755	# if exit is damned, update players death & WoR home-position
		2756	$self->contr->savebed ($map, $x, $y)
		2757	if $exit->flag (cf::FLAG_DAMNED);
		2758
1947	1;	2759	1
1948	}) {	2760	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2762	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2763	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2765
1954	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2767	$self->leave_link;
1956	}	2768	}
1957	})->prio (1);	2769	})->prio (1);
…		…
1970		2782
1971	sub cf::client::send_drawinfo {	2783	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2784	my ($self, $text, $flags) = @_;
1973		2785
1974	utf8::encode $text;	2786	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2788	}
1977		2789
		2790	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2791
		2792	Send a drawinfo or msg packet to the client, formatting the msg for the
		2793	client if neccessary. C<$type> should be a string identifying the type of
		2794	the message, with C<log> being the default. If C<$color> is negative, suppress
		2795	the message unless the client supports the msg packet.
		2796
		2797	=cut
		2798
		2799	# non-persistent channels (usually the info channel)
		2800	our %CHANNEL = (
		2801	"c/motd" => {
		2802	id => "infobox",
		2803	title => "MOTD",
		2804	reply => undef,
		2805	tooltip => "The message of the day",
		2806	},
		2807	"c/identify" => {
		2808	id => "infobox",
		2809	title => "Identify",
		2810	reply => undef,
		2811	tooltip => "Items recently identified",
		2812	},
		2813	"c/examine" => {
		2814	id => "infobox",
		2815	title => "Examine",
		2816	reply => undef,
		2817	tooltip => "Signs and other items you examined",
		2818	},
		2819	"c/shopinfo" => {
		2820	id => "infobox",
		2821	title => "Shop Info",
		2822	reply => undef,
		2823	tooltip => "What your bargaining skill tells you about the shop",
		2824	},
		2825	"c/book" => {
		2826	id => "infobox",
		2827	title => "Book",
		2828	reply => undef,
		2829	tooltip => "The contents of a note or book",
		2830	},
		2831	"c/lookat" => {
		2832	id => "infobox",
		2833	title => "Look",
		2834	reply => undef,
		2835	tooltip => "What you saw there",
		2836	},
		2837	"c/who" => {
		2838	id => "infobox",
		2839	title => "Players",
		2840	reply => undef,
		2841	tooltip => "Shows players who are currently online",
		2842	},
		2843	"c/body" => {
		2844	id => "infobox",
		2845	title => "Body Parts",
		2846	reply => undef,
		2847	tooltip => "Shows which body parts you posess and are available",
		2848	},
		2849	"c/statistics" => {
		2850	id => "infobox",
		2851	title => "Statistics",
		2852	reply => undef,
		2853	tooltip => "Shows your primary statistics",
		2854	},
		2855	"c/skills" => {
		2856	id => "infobox",
		2857	title => "Skills",
		2858	reply => undef,
		2859	tooltip => "Shows your experience per skill and item power",
		2860	},
		2861	"c/shopitems" => {
		2862	id => "infobox",
		2863	title => "Shop Items",
		2864	reply => undef,
		2865	tooltip => "Shows the items currently for sale in this shop",
		2866	},
		2867	"c/resistances" => {
		2868	id => "infobox",
		2869	title => "Resistances",
		2870	reply => undef,
		2871	tooltip => "Shows your resistances",
		2872	},
		2873	"c/pets" => {
		2874	id => "infobox",
		2875	title => "Pets",
		2876	reply => undef,
		2877	tooltip => "Shows information abotu your pets/a specific pet",
		2878	},
		2879	"c/perceiveself" => {
		2880	id => "infobox",
		2881	title => "Perceive Self",
		2882	reply => undef,
		2883	tooltip => "You gained detailed knowledge about yourself",
		2884	},
		2885	"c/uptime" => {
		2886	id => "infobox",
		2887	title => "Uptime",
		2888	reply => undef,
		2889	tooltip => "How long the server has been running since last restart",
		2890	},
		2891	"c/mapinfo" => {
		2892	id => "infobox",
		2893	title => "Map Info",
		2894	reply => undef,
		2895	tooltip => "Information related to the maps",
		2896	},
		2897	"c/party" => {
		2898	id => "party",
		2899	title => "Party",
		2900	reply => "gsay ",
		2901	tooltip => "Messages and chat related to your party",
		2902	},
		2903	"c/death" => {
		2904	id => "death",
		2905	title => "Death",
		2906	reply => undef,
		2907	tooltip => "Reason for and more info about your most recent death",
		2908	},
		2909	"c/say" => $SAY_CHANNEL,
		2910	"c/chat" => $CHAT_CHANNEL,
		2911	);
		2912
		2913	sub cf::client::send_msg {
		2914	my ($self, $channel, $msg, $color, @extra) = @_;
		2915
		2916	$msg = $self->pl->expand_cfpod ($msg)
		2917	unless $color & cf::NDI_VERBATIM;
		2918
		2919	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2920
		2921	# check predefined channels, for the benefit of C
		2922	if ($CHANNEL{$channel}) {
		2923	$channel = $CHANNEL{$channel};
		2924
		2925	$self->ext_msg (channel_info => $channel);
		2926	$channel = $channel->{id};
		2927
		2928	} elsif (ref $channel) {
		2929	# send meta info to client, if not yet sent
		2930	unless (exists $self->{channel}{$channel->{id}}) {
		2931	$self->{channel}{$channel->{id}} = $channel;
		2932	$self->ext_msg (channel_info => $channel);
		2933	}
		2934
		2935	$channel = $channel->{id};
		2936	}
		2937
		2938	return unless @extra || length $msg;
		2939
		2940	# default colour, mask it out
		2941	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2942	if $color & cf::NDI_DEF;
		2943
		2944	my $pkt = "msg "
		2945	. $self->{json_coder}->encode (
		2946	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2947	);
		2948
		2949	# try lzf for large packets
		2950	$pkt = "lzf " . Compress::LZF::compress $pkt
		2951	if 1024 <= length $pkt and $self->{can_lzf};
		2952
		2953	# split very large packets
		2954	if (8192 < length $pkt and $self->{can_lzf}) {
		2955	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2956	$pkt = "frag";
		2957	}
		2958
		2959	$self->send_packet ($pkt);
		2960	}
		2961
		2962	=item $client->ext_msg ($type, @msg)
		2963
		2964	Sends an ext event to the client.
		2965
		2966	=cut
		2967
		2968	sub cf::client::ext_msg($$@) {
		2969	my ($self, $type, @msg) = @_;
		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
		2974	push @msg, msgtype => "event_$type";
		2975	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2976	}
		2977	}
		2978
		2979	=item $client->ext_reply ($msgid, @msg)
		2980
		2981	Sends an ext reply to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_reply($$@) {
		2986	my ($self, $id, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2990	} elsif ($self->extcmd == 1) {
		2991	#TODO: version 1, remove
		2992	unshift @msg, msgtype => "reply", msgid => $id;
		2993	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2994	}
		2995	}
1978		2996
1979	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
1980		2998
1981	Queues a query to the client, calling the given callback with	2999	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>,	3000	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>.	3001	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		3002
1985	Queries can fail, so check the return code. Or don't, as queries will become	3003	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	3004	become reliable at some point in the future.
1987		3005
1988	=cut	3006	=cut
1989		3007
1990	sub cf::client::query {	3008	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3017	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3019
2002	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
2004	}	3024	}
2005		3025
2006	cf::client->attach (	3026	cf::client->attach (
		3027	on_connect => sub {
		3028	my ($ns) = @_;
		3029
		3030	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3031	},
2007	on_reply => sub {	3032	on_reply => sub {
2008	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
2009		3034
2010	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
2011	# get handled first	3036	# get handled first
…		…
2023	} else {	3048	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3050	}
2026	}	3051	}
2027	},	3052	},
		3053	on_exticmd => sub {
		3054	my ($ns, $buf) = @_;
		3055
		3056	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3057
		3058	if (ref $msg) {
		3059	my ($type, $reply, @payload) =
		3060	"ARRAY" eq ref $msg
		3061	? @$msg
		3062	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3063
		3064	my @reply;
		3065
		3066	if (my $cb = $EXTICMD{$type}) {
		3067	@reply = $cb->($ns, @payload);
		3068	}
		3069
		3070	$ns->ext_reply ($reply, @reply)
		3071	if $reply;
		3072
		3073	} else {
		3074	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3075	}
		3076
		3077	cf::override;
		3078	},
2028	);	3079	);
2029		3080
2030	=item $client->async (\&cb)	3081	=item $client->async (\&cb)
2031		3082
2032	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
2075		3126
2076	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
2077		3128
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3129	$safe->permit_only (Opcode::opset qw(
		3130	:base_core :base_mem :base_orig :base_math
		3131	grepstart grepwhile mapstart mapwhile
		3132	sort time
		3133	));
2079		3134
2080	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
2081		3136
2082	=pod	3137	=pod
2083		3138
2084	The following fucntions and emthods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
2085		3140
2086	cf::object contr pay_amount pay_player map	3141	cf::object
		3142	contr pay_amount pay_player map x y force_find force_add destroy
		3143	insert remove name archname title slaying race decrease split
		3144	value
		3145
2087	cf::object::player player	3146	cf::object::player
2088	cf::player peaceful	3147	player
2089	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
2090		3154
2091	=cut	3155	=cut
2092		3156
2093	for (	3157	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3158	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3159	insert remove inv nrof name archname title slaying race
		3160	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
2098	) {	3164	) {
2099	no strict 'refs';	3165	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2118	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
2119		3185
2120	my $qcode = $code;	3186	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
2123		3191
2124	local $_;	3192	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
2126		3194
2127	my $eval =	3195	my $eval =
…		…
2170	=back	3238	=back
2171		3239
2172	=cut	3240	=cut
2173		3241
2174	#############################################################################	3242	#############################################################################
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]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3243	# the server's init and main functions
2284		3244
		3245	sub load_facedata($) {
		3246	my ($path) = @_;
		3247
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3253
		3254	warn "loading facedata from $path\n";
		3255
		3256	my $facedata;
		3257	0 < aio_load $path, $facedata
		3258	or die "$path: $!";
		3259
		3260	$facedata = Coro::Storable::thaw $facedata;
		3261
		3262	$facedata->{version} == 2
		3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3264
		3265	# patch in the exptable
		3266	$facedata->{resource}{"res/exp_table"} = {
		3267	type => FT_RSRC,
		3268	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3269	};
		3270	cf::cede_to_tick;
		3271
		3272	{
		3273	my $faces = $facedata->{faceinfo};
		3274
		3275	while (my ($face, $info) = each %$faces) {
		3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3277
		3278	cf::face::set_visibility $idx, $info->{visibility};
		3279	cf::face::set_magicmap $idx, $info->{magicmap};
		3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3282
		3283	cf::cede_to_tick;
		3284	}
		3285
		3286	while (my ($face, $info) = each %$faces) {
		3287	next unless $info->{smooth};
		3288
		3289	my $idx = cf::face::find $face
		3290	or next;
		3291
		3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
		3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3295	} else {
		3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	{
		3304	my $anims = $facedata->{animinfo};
		3305
		3306	while (my ($anim, $info) = each %$anims) {
		3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3308	cf::cede_to_tick;
		3309	}
		3310
		3311	cf::anim::invalidate_all; # d'oh
		3312	}
		3313
		3314	{
		3315	# TODO: for gcfclient pleasure, we should give resources
		3316	# that gcfclient doesn't grok a >10000 face index.
		3317	my $res = $facedata->{resource};
		3318
		3319	while (my ($name, $info) = each %$res) {
		3320	if (defined $info->{type}) {
		3321	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3322	my $data;
		3323
		3324	if ($info->{type} & 1) {
		3325	# prepend meta info
		3326
		3327	my $meta = $enc->encode ({
		3328	name => $name,
		3329	%{ $info->{meta} || {} },
		3330	});
		3331
		3332	$data = pack "(w/a*)*", $meta, $info->{data};
		3333	} else {
		3334	$data = $info->{data};
		3335	}
		3336
		3337	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
		3349	1
		3350	}
		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
2285	sub load_resources {	3380	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
		3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
		3395	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3396	or die "unable to load regions file\n";
2288	}
2289		3397
2290	sub cfg_load {	3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
		3402	}
		3403
		3404	sub reload_facedata {
		3405	load_facedata "$DATADIR/facedata"
		3406	or die "unable to load facedata\n";
		3407	}
		3408
		3409	sub reload_archetypes {
		3410	load_resource_file "$DATADIR/archetypes"
		3411	or die "unable to load archetypes\n";
		3412	}
		3413
		3414	sub reload_treasures {
		3415	load_resource_file "$DATADIR/treasures"
		3416	or die "unable to load treasurelists\n";
		3417	}
		3418
		3419	sub reload_resources {
		3420	warn "reloading resource files...\n";
		3421
		3422	reload_facedata;
		3423	reload_archetypes;
		3424	reload_regions;
		3425	reload_treasures;
		3426
		3427	warn "finished reloading resource files\n";
		3428	}
		3429
		3430	sub reload_config {
		3431	warn "reloading config file...\n";
		3432
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3434	or return;
2293		3435
2294	local $/;	3436	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2296		3438
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3440
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3441	$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};	3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	3448	};
2307	warn $@ if $@;	3449	warn $@ if $@;
2308	}	3450	}
2309	}
2310		3451
2311	sub init {	3452	warn "finished reloading resource files\n";
2312	load_resources;	3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3481	}
2314		3482
2315	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2316	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3501	(async {
2320	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2322	};	3505	};
2323		3506
2324	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
		3512	db_init;
		3513
		3514	cf::load_settings;
		3515	cf::load_materials;
		3516	cf::init_uuid;
		3517	cf::init_signals;
		3518	cf::init_commands;
		3519	cf::init_skills;
		3520
		3521	cf::init_beforeplay;
		3522
		3523	atomic;
		3524
2326	load_extensions;	3525	load_extensions;
2327		3526
2328	$TICK_WATCHER->start;	3527	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3528
		3529	# no (long-running) fork's whatsoever before this point(!)
		3530	use POSIX ();
		3531	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3532
		3533	(pop @POST_INIT)->(0) while @POST_INIT;
		3534	};
		3535
		3536	main_loop;
2330	}	3537	}
2331		3538
2332	#############################################################################	3539	#############################################################################
2333	# initialisation and cleanup	3540	# initialisation and cleanup
2334		3541
2335	# install some emergency cleanup handlers	3542	# install some emergency cleanup handlers
2336	BEGIN {	3543	BEGIN {
		3544	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3545	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3546	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3547	cf::cleanup "SIG$signal";
2345	},
2346	);	3548	};
		3549	}
		3550	}
		3551
		3552	sub write_runtime_sync {
		3553	# first touch the runtime file to show we are still running:
		3554	# the fsync below can take a very very long time.
		3555
		3556	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3557
		3558	my $guard = cf::lock_acquire "write_runtime";
		3559
		3560	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3561	or return;
		3562
		3563	my $value = $cf::RUNTIME + 90 + 10;
		3564	# 10 is the runtime save interval, for a monotonic clock
		3565	# 60 allows for the watchdog to kill the server.
		3566
		3567	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3568	and return;
		3569
		3570	# always fsync - this file is important
		3571	aio_fsync $fh
		3572	and return;
		3573
		3574	# touch it again to show we are up-to-date
		3575	aio_utime $fh, undef, undef;
		3576
		3577	close $fh
		3578	or return;
		3579
		3580	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3581	and return;
		3582
		3583	warn "runtime file written.\n";
		3584
2347	}	3585	1
		3586	}
		3587
		3588	our $uuid_lock;
		3589	our $uuid_skip;
		3590
		3591	sub write_uuid_sync($) {
		3592	$uuid_skip ||= $_[0];
		3593
		3594	return if $uuid_lock;
		3595	local $uuid_lock = 1;
		3596
		3597	my $uuid = "$LOCALDIR/uuid";
		3598
		3599	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3600	or return;
		3601
		3602	my $value = uuid_seq uuid_cur;
		3603
		3604	unless ($value) {
		3605	warn "cowardly refusing to write zero uuid value!\n";
		3606	return;
		3607	}
		3608
		3609	my $value = uuid_str $value + $uuid_skip;
		3610	$uuid_skip = 0;
		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	close $fh
		3620	or return;
		3621
		3622	aio_rename "$uuid~", $uuid
		3623	and return;
		3624
		3625	warn "uuid file written ($value).\n";
		3626
		3627	1
		3628
		3629	}
		3630
		3631	sub write_uuid($$) {
		3632	my ($skip, $sync) = @_;
		3633
		3634	$sync ? write_uuid_sync $skip
		3635	: async { write_uuid_sync $skip };
2348	}	3636	}
2349		3637
2350	sub emergency_save() {	3638	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3639	my $freeze_guard = cf::freeze_mainloop;
2352		3640
2353	warn "enter emergency perl save\n";	3641	warn "emergency_perl_save: enter\n";
2354		3642
2355	cf::sync_job {	3643	cf::sync_job {
		3644	# this is a trade-off: we want to be very quick here, so
		3645	# save all maps without fsync, and later call a global sync
		3646	# (which in turn might be very very slow)
		3647	local $USE_FSYNC = 0;
		3648
2356	# use a peculiar iteration method to avoid tripping on perl	3649	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3650	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3651	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3652	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3653	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3654	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3657	$pl->save;
2364	}	3658	}
2365	warn "end emergency player save\n";	3659	warn "emergency_perl_save: end player save\n";
2366		3660
2367	warn "begin emergency map save\n";	3661	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3662	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3663	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3664	$map->valid or next;
2371	$map->save;	3665	$map->save;
2372	}	3666	}
2373	warn "end emergency map save\n";	3667	warn "emergency_perl_save: end map save\n";
		3668
		3669	warn "emergency_perl_save: begin database checkpoint\n";
		3670	BDB::db_env_txn_checkpoint $DB_ENV;
		3671	warn "emergency_perl_save: end database checkpoint\n";
		3672
		3673	warn "emergency_perl_save: begin write uuid\n";
		3674	write_uuid_sync 1;
		3675	warn "emergency_perl_save: end write uuid\n";
2374	};	3676	};
2375		3677
		3678	warn "emergency_perl_save: starting sync()\n";
		3679	IO::AIO::aio_sync sub {
		3680	warn "emergency_perl_save: finished sync()\n";
		3681	};
		3682
2376	warn "leave emergency perl save\n";	3683	warn "emergency_perl_save: leave\n";
2377	}	3684	}
2378		3685
		3686	sub post_cleanup {
		3687	my ($make_core) = @_;
		3688
		3689	warn Carp::longmess "post_cleanup backtrace"
		3690	if $make_core;
		3691
		3692	my $fh = pidfile;
		3693	unlink $PIDFILE if <$fh> == $$;
		3694	}
		3695
		3696	# a safer delete_package, copied from Symbol
		3697	sub clear_package($) {
		3698	my $pkg = shift;
		3699
		3700	# expand to full symbol table name if needed
		3701	unless ($pkg =~ /^main::.*::$/) {
		3702	$pkg = "main$pkg" if $pkg =~ /^::/;
		3703	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3704	$pkg .= '::' unless $pkg =~ /::$/;
		3705	}
		3706
		3707	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3708	my $stem_symtab = *{$stem}{HASH};
		3709
		3710	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3711	or return;
		3712
		3713	# clear all symbols
		3714	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3715	for my $name (keys %$leaf_symtab) {
		3716	_gv_clear *{"$pkg$name"};
		3717	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3718	}
		3719	warn "cleared package $pkg\n";#d#
		3720	}
		3721
2379	sub reload() {	3722	sub do_reload_perl() {
2380	# can/must only be called in main	3723	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3725	warn "can only reload from main coroutine";
2383	return;	3726	return;
2384	}	3727	}
2385		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2386	warn "reloading...";	3734	warn "reloading...";
2387		3735
2388	warn "cancelling server ticker";	3736	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3737
		3738	cf::sync_job {
		3739	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3740	cf::emergency_save;
		3741	cf::write_runtime_sync; # external watchdog should not bark
2392		3742
2393	eval {	3743	warn "syncing database to disk";
		3744	BDB::db_env_txn_checkpoint $DB_ENV;
		3745
2394	# if anything goes wrong in here, we should simply crash as we already saved	3746	# if anything goes wrong in here, we should simply crash as we already saved
2395		3747
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";	3748	warn "flushing outstanding aio requests";
2405	for (;;) {	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3750	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	}	3751	}
2432		3752
2433	warn "... nuking $pkg";	3753	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3754	$_->cancel for values %EXT_CORO;
2435	}	3755	%EXT_CORO = ();
2436		3756
2437	warn "unloading all perl modules loaded from $LIBDIR";	3757	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3758	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3766	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3767
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
2448	$cb->();	3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2449	}	3777	}
2450		3778
2451	Symbol::delete_package $k;	3779	warn "unloading all perl modules loaded from $LIBDIR";
		3780	while (my ($k, $v) = each %INC) {
		3781	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3782
		3783	warn "... unloading $k";
		3784	delete $INC{$k};
		3785
		3786	$k =~ s/\.pm$//;
		3787	$k =~ s/\//::/g;
		3788
		3789	if (my $cb = $k->can ("unload_module")) {
		3790	$cb->();
		3791	}
		3792
		3793	clear_package $k;
2452	}	3794	}
2453		3795
2454	warn "getting rid of safe::, as good as possible";	3796	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3798	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3799
2458	warn "unloading cf.pm \"a bit\"";	3800	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
		3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3803
2461	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3805	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2464		3807
2465	warn "unload completed, starting to reload now";	3808	warn "unload completed, starting to reload now";
2466		3809
2467	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2468	require cf;	3811	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2470		3813
2471	warn "loading config and database again";	3814	warn "loading config and database again";
2472	cf::cfg_load;	3815	cf::reload_config;
2473	cf::db_load;
2474		3816
2475	warn "loading extensions";	3817	warn "loading extensions";
2476	cf::load_extensions;	3818	cf::load_extensions;
2477		3819
		3820	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3821	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3822	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3823	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3824	reattach $_ for values %MAP;
		3825	warn "reattaching attachments to players";
		3826	reattach $_ for values %PLAYER;
		3827	}
2482		3828
2483	warn "loading reloadable resources";	3829	warn "running post_init jobs";
2484	load_resources;	3830	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3831
2486	warn "restarting server ticker";	3832	warn "leaving sync_job";
2487		3833
2488	$TICK_WATCHER->start;	3834	1
		3835	} or do {
		3836	warn $@;
		3837	cf::cleanup "error while reloading, exiting.";
		3838	};
		3839
		3840	warn "reloaded";
		3841	--$RELOAD;
		3842	}
		3843
		3844	$t1 = EV::time - $t1;
		3845	warn "reload completed in ${t1}s\n";
		3846	};
		3847
		3848	our $RELOAD_WATCHER; # used only during reload
		3849
		3850	sub reload_perl() {
		3851	# doing reload synchronously and two reloads happen back-to-back,
		3852	# coro crashes during coro_state_free->destroy here.
		3853
		3854	$RELOAD_WATCHER ||= cf::async {
		3855	Coro::AIO::aio_wait cache_extensions;
		3856
		3857	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3858	do_reload_perl;
		3859	undef $RELOAD_WATCHER;
		3860	};
2489	};	3861	};
2490		3862	}
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		3863
2502	register_command "reload" => sub {	3864	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2504		3866
2505	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3868	$who->message ("reloading server.");
2507		3869	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3870	$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;	3871	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3872	};
2520	}	3873	}
2521	};	3874	};
2522		3875
2523	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2524		3877
2525	my $bug_warning = 0;	3878	my $bug_warning = 0;
2526		3879
2527	$TICK_WATCHER = Event->timer (	3880	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3881	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3882
2530	prio => 0,	3883	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3884	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3885
2533	cb => sub {	3886	my $signal = new Coro::Signal;
		3887	push @WAIT_FOR_TICK, $signal;
		3888	$signal->wait;
		3889	}
		3890
		3891	sub wait_for_tick_begin {
		3892	return if tick_inhibit || $Coro::current == $Coro::main;
		3893
		3894	my $signal = new Coro::Signal;
		3895	push @WAIT_FOR_TICK_BEGIN, $signal;
		3896	$signal->wait;
		3897	}
		3898
		3899	sub tick {
2534	if ($Coro::current != $Coro::main) {	3900	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3902	unless ++$bug_warning > 10;
2537	return;	3903	return;
2538	}	3904	}
2539		3905
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3907
2546	$WAIT_FOR_TICK->broadcast;	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3910	Coro::async_pool {
		3911	$Coro::current->{desc} = "runtime saver";
		3912	write_runtime_sync
		3913	or warn "ERROR: unable to write runtime file: $!";
		3914	};
		3915	}
2548		3916
2549	Event::sweep;	3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3918	$sig->send;
		3919	}
		3920	while (my $sig = shift @WAIT_FOR_TICK) {
		3921	$sig->send;
		3922	}
		3923
		3924	$LOAD = ($NOW - $TICK_START) / $TICK;
		3925	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3926
		3927	if (0) {
		3928	if ($NEXT_TICK) {
		3929	my $jitter = $TICK_START - $NEXT_TICK;
		3930	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3931	warn "jitter $JITTER\n";#d#
2551		3932	}
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	},	3933	}
2561	);	3934	}
2562		3935
2563	{	3936	{
2564	BDB::max_poll_time $TICK * 0.1;	3937	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3938
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;	3939	BDB::min_parallel 8;
2574		3940	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3941	$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		3942
2590	unless ($DB_ENV) {	3943	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3944	$DB_ENV = BDB::db_env_create;
		3945	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3946	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3947	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3948	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3949	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3950
2593	cf::sync_job {	3951	cf::sync_job {
		3952	eval {
2594	BDB::db_env_open	3953	BDB::db_env_open
2595	$DB_ENV,	3954	$DB_ENV,
2596	$BDB_ENV_DIR,	3955	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3958	0666;
2600		3959
2601	cf::cleanup "$!" if $!;	3960	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3961	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3962
		3963	cf::cleanup "db_env_open(db): $@" if $@;
2604	};	3964	};
2605	}	3965	}
		3966
		3967	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3968	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3969	};
		3970	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3971	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3972	};
		3973	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3974	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3975	};
2606	}	3976	}
2607		3977
2608	{	3978	{
		3979	# configure IO::AIO
		3980
2609	IO::AIO::min_parallel 8;	3981	IO::AIO::min_parallel 8;
2610
2611	undef $Coro::AIO::WATCHER;
2612	IO::AIO::max_poll_time $TICK * 0.1;	3982	IO::AIO::max_poll_time $TICK * 0.1;
2613	$AIO_POLL_WATCHER = Event->io (	3983	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	}	3984	}
2622		3985
2623	$WRITE_RUNTIME_WATCHER = Event->timer (	3986	my $_log_backtrace;
2624	reentrant => 0,	3987
2625	data => WF_AUTOCANCEL,	3988	sub _log_backtrace {
2626	after => 1,	3989	my ($msg, @addr) = @_;
2627	interval => 10,	3990
2628	prio => 6, # keep it lowest so it acts like a watchdog	3991	$msg =~ s/\n//;
2629	cb => Coro::unblock_sub {	3992
2630	write_runtime	3993	# limit the # of concurrent backtraces
2631	or warn "ERROR: unable to write runtime file: $!";	3994	if ($_log_backtrace < 2) {
		3995	++$_log_backtrace;
		3996	my $perl_bt = Carp::longmess $msg;
		3997	async {
		3998	$Coro::current->{desc} = "abt $msg";
		3999
		4000	my @bt = fork_call {
		4001	@addr = map { sprintf "%x", $_ } @addr;
		4002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4004	or die "addr2line: $!";
		4005
		4006	my @funcs;
		4007	my @res = <$fh>;
		4008	chomp for @res;
		4009	while (@res) {
		4010	my ($func, $line) = splice @res, 0, 2, ();
		4011	push @funcs, "[$func] $line";
		4012	}
		4013
		4014	@funcs
		4015	};
		4016
		4017	LOG llevInfo, "[ABT] $perl_bt\n";
		4018	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4019	LOG llevInfo, "[ABT] $_\n" for @bt;
		4020	--$_log_backtrace;
		4021	};
		4022	} else {
		4023	LOG llevInfo, "[ABT] $msg\n";
		4024	LOG llevInfo, "[ABT] [suppressed]\n";
2632	},	4025	}
2633	);	4026	}
		4027
		4028	# load additional modules
		4029	require "cf/$_.pm" for @EXTRA_MODULES;
		4030	cf::_connect_to_perl_2;
2634		4031
2635	END { cf::emergency_save }	4032	END { cf::emergency_save }
2636		4033
2637	1	4034	1
2638		4035

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