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Revision 1.254 by root, Thu Apr 19 11:12:45 2007 UTC vs.
Revision 1.509 by root, Mon Apr 5 03:22:25 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# 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 ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		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 $REALLY_UNLOOP; # never set to true, please :)
		147
95	binmode STDOUT;	148	binmode STDOUT;
96	binmode STDERR;	149	binmode STDERR;
97		150
98	# read virtual server time, if available	151	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
103	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
104		159
105	mkdir $_	160	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		162
108	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
109		164
110	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::"} };
111		177
112	#############################################################################	178	#############################################################################
113		179
114	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
115		181
…		…
139		205
140	=item $cf::TICK	206	=item $cf::TICK
141		207
142	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
143		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
144	=item %cf::CFG	220	=item %cf::CFG
145		221
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	223	from wherever your confdir points to.
148		224
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		226
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		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.
		242
155	=back	243	=back
156		244
157	=cut	245	=cut
158		246
159	BEGIN {	247	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	248	my $msg = join "", @_;
162		249
163	$msg .= "\n"	250	$msg .= "\n"
164	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
165		252
166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		254
168	utf8::encode $msg;
169	LOG llevError, $msg;	255	LOG llevError, $msg;
170	};	256	};
171	}	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	};
172		271
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		279
180	# 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
181	# within the Safe compartment.	281	# within the Safe compartment.
182	for my $pkg (qw(	282	for my $pkg (qw(
183	cf::global cf::attachable	283	cf::global cf::attachable
184	cf::object cf::object::player	284	cf::object cf::object::player
185	cf::client cf::player	285	cf::client cf::player
186	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
187	cf::map cf::party cf::region	288	cf::party cf::region
188	)) {	289	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	291	}
192		292
193	$Event::DIED = sub {	293	$EV::DIED = sub {
194	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
195	};	295	};
		296
		297	#############################################################################
196		298
197	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
198		300
199	=over 4	301	=over 4
200		302
…		…
219	$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;
220	$d	322	$d
221	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
222	}	324	}
223		325
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
227		327
228	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
229		329
230	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
231		331
232	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
233		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[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;
		353	}
		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	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
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
249		373
250	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
251		375
252	=cut	376	=cut
253		377
254	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
255		379
256	sub lock_wait($) {	380	sub lock_wait($) {
257	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	382	}
265		383
266	sub lock_acquire($) {	384	sub lock_acquire($) {
267	my ($key) = @_;	385	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	386	}
279		387
280	sub lock_active($) {	388	sub lock_active($) {
281	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	390	}
285		391
286	sub freeze_mainloop {	392	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
288		394
289	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
291	};	462	}
292	$TICK_WATCHER->stop;	463	};
293	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
294	}	478	}
295		479
296	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
297		481
298	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		487
304	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
305		489
306	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
307		491
308	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
311		496
312	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
315	fast or be very important.	500	fast or be very important.
…		…
318		503
319	sub sync_job(&) {	504	sub sync_job(&) {
320	my ($job) = @_;	505	my ($job) = @_;
321		506
322	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
323	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
325		512
326	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	514
328	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
329		516
330	my $busy = 1;	517	my $busy = 1;
331	my @res;	518	my @res;
332		519
333	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	522	@res = eval { $job->() };
335	warn $@ if $@;	523	warn $@ if $@;
336	undef $busy;	524	undef $busy;
337	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
338		526
339	while ($busy) {	527	while ($busy) {
340	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
341	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
342		538
343	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
344	} else {	540	} else {
345	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
346		542
…		…
366	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
367		563
368	$coro	564	$coro
369	}	565	}
370		566
371	sub write_runtime {	567	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		568
374	my $runtime = "$LOCALDIR/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
375		573
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
377	or return;
378		575
379	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		578
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
384	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
385		582
386	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	584	reset_signals;
388	and return;	585	&$cb
		586	}, @args;
389		587
390	close $fh	588	wantarray ? @res : $res[-1]
391	or return;	589	}
392		590
393	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
394	and return;
395		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
396	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
397	}	743	}
398		744
399	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
400		746
401	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		759
414	#############################################################################	760	#############################################################################
415		761
416	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
417		763
418	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
421		767
422	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	770	Deliantra).
425		771
426	=over 4	772	=over 4
427		773
428	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
429		775
…		…
473	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
474		820
475	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
477		823
478	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
480		826
481	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
482		828
483	=over 4	829	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
593		939
594	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		944
599	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	946	my $pkg = shift @arg;
601		947
602	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
632	}	978	}
633		979
634	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
635	} else {	981	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	983	}
638		984
639	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
640	}	986	}
641		987
…		…
643	if (ref $_[0]) {	989	if (ref $_[0]) {
644	_object_attach @_;	990	_object_attach @_;
645	} else {	991	} else {
646	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
647	}	993	}
		994	_recalc_want;
648	};	995	};
649		996
650	# all those should be optimised	997	# all those should be optimised
651	sub cf::attachable::detach {	998	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1003	reattach ($obj);
657	} else {	1004	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
659	}	1006	}
		1007	_recalc_want;
660	};	1008	};
661		1009
662	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
664		1012
…		…
679	";	1027	";
680	die if $@;	1028	die if $@;
681	}	1029	}
682		1030
683	our $override;	1031	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1033
686	sub override {	1034	sub override {
687	$override = 1;	1035	$override = 1;
688	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
689	}	1037	}
690		1038
691	sub do_invoke {	1039	sub do_invoke {
692	my $event = shift;	1040	my $event = shift;
693	my $callbacks = shift;	1041	my $callbacks = shift;
694		1042
695	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
696		1044
697	local $override;	1045	local $override;
698		1046
699	for (@$callbacks) {	1047	for (@$callbacks) {
700	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
709	}	1057	}
710		1058
711	0	1059	0
712	}	1060	}
713		1061
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1063
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1065
718	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
719		1067
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1071
724	=back	1072	=back
725		1073
726	=cut	1074	=cut
727		1075
728	#############################################################################	1076	#############################################################################
729	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
730		1120
731	sub reattach {	1121	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1123	my ($obj) = @_;
734		1124
		1125	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1127
737	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
738		1129
739	@$registry = ();	1130	@$registry = ();
740		1131
…		…
755	cf::attachable->attach (	1146	cf::attachable->attach (
756	prio => -1000000,	1147	prio => -1000000,
757	on_instantiate => sub {	1148	on_instantiate => sub {
758	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
759		1150
760	$data = from_json $data;	1151	$data = decode_json $data;
761		1152
762	for (@$data) {	1153	for (@$data) {
763	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
764		1155
765	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1172	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
783		1174
784	sync_job {	1175	sync_job {
785	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
788		1180
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
793	close $fh;	1188	aio_close $fh;
794		1189
795	if (@$objs) {	1190	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1197	aio_fsync $fh;
		1198	}
801	close $fh;	1199	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
803	}	1201	}
804	} else {	1202	} else {
805	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
806	}	1204	}
807		1205
808	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1210	} else {
810	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
811	}	1212	}
812	} else {	1213	} else {
813	aio_unlink $filename;	1214	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
815	}	1216	}
816	}	1217	};
817	}	1218	}
818		1219
819	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
821		1222
…		…
833	or return;	1234	or return;
834		1235
835	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
837	or return;	1238	or return;
		1239
838	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
839	}	1242	}
840		1243
		1244	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
843	return ($data, $av);	1248	($data, $av)
844	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
845		1256
846	#############################################################################	1257	#############################################################################
847	# command handling &c	1258	# command handling &c
848		1259
849	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1274	}
864		1275
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1277
867	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
868		1283
869	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
870	called.	1285	called.
871		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
872	=cut	1298	=cut
873		1299
874	sub register_extcmd {	1300	sub register_extcmd {
875	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
876		1302
877	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
878	}	1304	}
879		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
880	cf::player->attach (	1314	cf::player->attach (
881	on_command => sub {	1315	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
883		1317
884	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
885	or return;	1319	or return;
886		1320
…		…
891	cf::override;	1325	cf::override;
892	},	1326	},
893	on_extcmd => sub {	1327	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
895		1329
896	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1331
898	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
904	} else {	1347	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1349	}
907		1350
908	cf::override;	1351	cf::override;
909	},	1352	},
910	);	1353	);
911		1354
		1355	# "readahead" all extensions
912	sub load_extension {	1356	sub cache_extensions {
913	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
914		1358
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1362	}
940	die $@;
941	}	1363	};
942		1364
943	push @EXTS, $pkg;	1365	$grp
944	}	1366	}
945		1367
946	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
947	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1373	next unless -r $path;
949	eval {	1374
950	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
951	1	1435	}
952	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
953	}	1446	};
954	}	1447	}
955		1448
956	#############################################################################	1449	#############################################################################
957		1450
		1451	=back
		1452
958	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
959		1454
960	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
961		1456
962	=cut	1457	=cut
963		1458
964	package cf::player;	1459	package cf::player;
965		1460
966	use Coro::AIO;	1461	use Coro::AIO;
967		1462
968	=head3 cf::player	1463	=head3 cf::player
969		1464
970	=over 4	1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
971		1480
972	=item cf::player::find $login	1481	=item cf::player::find $login
973		1482
974	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
975		1484
…		…
994		1503
995	sub exists($) {	1504	sub exists($) {
996	my ($login) = @_;	1505	my ($login) = @_;
997		1506
998	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1000	}	1509	}
1001		1510
1002	sub find($) {	1511	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1513	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1524
1016	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1019	}	1534	}
1020	}	1535	}
1021	}	1536	}
1022		1537
…		…
1031	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1032		1547
1033	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1035		1550
		1551	cf::get_slot 0.01;
		1552
1036	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1037	Coro::cede;	1554	cf::cede_to_tick;
1038	}	1555	}
1039		1556
1040	sub new($) {	1557	sub new($) {
1041	my ($login) = @_;	1558	my ($login) = @_;
1042		1559
…		…
1048	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1049		1566
1050	$self	1567	$self
1051	}	1568	}
1052		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1053	=item $pl->quit_character	1580	=item $pl->quit_character
1054		1581
1055	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1057		1584
…		…
1061	my ($pl) = @_;	1588	my ($pl) = @_;
1062		1589
1063	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1064		1591
1065	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1594
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1072		1601
1073	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1639	or return [];
1111		1640
1112	my @logins;	1641	my @logins;
1113		1642
1114	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1118		1653
1119	utf8::decode $login;	1654	utf8::decode $login;
1120	push @logins, $login;	1655	push @logins, $login;
1121	}	1656	}
1122		1657
…		…
1149	}	1684	}
1150		1685
1151	\@paths	1686	\@paths
1152	}	1687	}
1153		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1154	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1155		1694
1156	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1157		1696
1158	=cut	1697	=cut
1159		1698
1160	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1162		1701
1163	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1703	}
1167		1704
1168	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1169		1706
1170	Sends an ext event to the client.	1707	Sends an ext event to the client.
1171		1708
1172	=cut	1709	=cut
1173		1710
1174	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1176		1713
1177	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1178	}	1715	}
1179		1716
1180	=head3 cf::region	1717	=head3 cf::region
1181		1718
1182	=over 4	1719	=over 4
…		…
1185		1722
1186	package cf::region;	1723	package cf::region;
1187		1724
1188	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1189		1726
1190	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1191		1728
1192	=cut	1729	=cut
1193		1730
1194	sub find_by_path($) {	1731	sub find_by_path($) {
1195	my ($path) = @_;	1732	my ($path) = @_;
1196		1733
1197	my ($match, $specificity);	1734	my ($match, $specificity);
1198		1735
1199	for my $region (list) {	1736	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1203	}	1740	}
1204	}	1741	}
1205		1742
…		…
1226	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1228		1765
1229	sub generate_random_map {	1766	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1231	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1772	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},	1776	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},	1777	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1778	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1779	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1269	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1270		1810
1271	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1272	local $self->{path};	1812	local $self->{path};
1273	local $self->{load_path};	1813	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1814
1277	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1278	}	1816	}
1279		1817
1280	sub normalise {	1818	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1328	return $self;	1866	return $self;
1329	}	1867	}
1330	}	1868	}
1331		1869
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1871	()
1334	}	1872	}
1335		1873
1336	sub init {	1874	sub init {
1337	my ($self) = @_;	1875	my ($self) = @_;
…		…
1359		1897
1360	# the temporary/swap location	1898	# the temporary/swap location
1361	sub save_path {	1899	sub save_path {
1362	my ($self) = @_;	1900	my ($self) = @_;
1363		1901
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1903	"$TMPDIR/$path.map"
1366	}	1904	}
1367		1905
1368	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1369	sub uniq_path {	1907	sub uniq_path {
1370	my ($self) = @_;	1908	my ($self) = @_;
1371		1909
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1911	"$UNIQUEDIR/$path"
1374	}	1912	}
1375		1913
1376	# and all this just because we cannot iterate over	1914	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1915	my ($self) = @_;
1380		1916
1381	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1383	}	1920	}
1384		1921
1385	sub unlink_save {	1922	sub unlink_save {
1386	my ($self) = @_;	1923	my ($self) = @_;
1387		1924
…		…
1392		1929
1393	sub load_header_from($) {	1930	sub load_header_from($) {
1394	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1395		1932
1396	utf8::encode $path;	1933	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1402		1942
1403	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1404		1944
1405	1	1945	1
1406	}	1946	}
…		…
1445	$self->load_header_orig	1985	$self->load_header_orig
1446	or return;	1986	or return;
1447	$self->prepare_orig;	1987	$self->prepare_orig;
1448	}	1988	}
1449		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1450	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1994	unless $self->default_region;
1452		1995
1453	1	1996	1
1454	}	1997	}
…		…
1457	sub find {	2000	sub find {
1458	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1459		2002
1460	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1461		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2007
1464	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1467	or return;	2010	or return;
1468		2011
1469	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1470		2013
1471	$map->load_header	2014	$map->load_header
1472	or return;	2015	or return;
1473		2016
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1477	$map->reset;	2022	$map->reset;
1478	undef $guard;
1479	return find $path;	2023	return find $path;
1480	}	2024	}
1481		2025
1482	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1483	}	2027	}
1484	}	2028	}
1485		2029
1486	sub pre_load { }	2030	sub pre_load { }
1487	sub post_load { }	2031	#sub post_load { } # XS
1488		2032
1489	sub load {	2033	sub load {
1490	my ($self) = @_;	2034	my ($self) = @_;
1491		2035
1492	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1493		2037
1494	my $path = $self->{path};	2038	my $path = $self->{path};
		2039
		2040	{
1495	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1496		2042
		2043	return unless $self->valid;
1497	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1498		2045
1499	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1500		2047
1501	$self->alloc;	2048	$self->alloc;
1502		2049
1503	$self->pre_load;	2050	$self->pre_load;
1504	Coro::cede;	2051	cf::cede_to_tick;
1505		2052
1506	$self->_load_objects ($self->{load_path}, 1)	2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
		2055	$self->_load_objects ($f)
1507	or return;	2056	or return;
1508		2057
1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1510	if delete $self->{load_original};	2059	if delete $self->{load_original};
1511		2060
1512	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1513	utf8::encode $uniq;	2062	utf8::encode $uniq;
1514	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1515	$self->clear_unique_items;	2065	$self->clear_unique_items;
1516	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1517	}	2069	}
1518	}	2070	}
1519		2071
1520	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1521	# now do the right thing for maps	2075	# now do the right thing for maps
1522	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1523	Coro::cede;
1524
1525	unless ($self->{deny_activate}) {
1526	$self->decay_objects;
1527	$self->fix_auto_apply;
1528	$self->update_buttons;
1529	Coro::cede;
1530	$self->set_darkness_map;
1531	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	2078	unless $self->difficulty;
1533	Coro::cede;	2079	cf::cede_to_tick;
		2080
		2081	unless ($self->{deny_activate}) {
		2082	$self->decay_objects;
		2083	$self->fix_auto_apply;
		2084	$self->update_buttons;
		2085	cf::cede_to_tick;
1534	$self->activate;	2086	$self->activate;
1535	Coro::cede;	2087	}
		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
		2092	$self->in_memory (cf::MAP_ACTIVE);
1536	}	2093	}
1537		2094
1538	$self->post_load;	2095	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	2096	}
1543		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
1544	sub customise_for {	2101	sub customise_for {
1545	my ($self, $ob) = @_;	2102	my ($self, $ob) = @_;
1546		2103
1547	return find "~" . $ob->name . "/" . $self->{path}	2104	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	2105	if $self->per_player;
1549		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
1550	$self	2110	$self
1551	}	2111	}
1552		2112
1553	# find and load all maps in the 3x3 area around a map	2113	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	2114	sub load_neighbours {
1555	my ($map) = @_;	2115	my ($map) = @_;
1556		2116
1557	my @diag; # diagonal neighbours	2117	my @neigh; # diagonal neighbours
1558		2118
1559	for (0 .. 3) {	2119	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	2120	my $neigh = $map->tile_path ($_)
1561	or next;	2121	or next;
1562	$neigh = find $neigh, $map	2122	$neigh = find $neigh, $map
1563	or next;	2123	or next;
1564	$neigh->load;	2124	$neigh->load;
1565		2125
		2126	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	2129	}
1569		2130
1570	for (@diag) {	2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	2133	my $neigh = find $path, $origin
1572	or next;	2134	or next;
1573	$neigh->load;	2135	$neigh->load;
1574	}	2136	}
1575	}	2137	}
1576		2138
…		…
1581	}	2143	}
1582		2144
1583	sub do_load_sync {	2145	sub do_load_sync {
1584	my ($map) = @_;	2146	my ($map) = @_;
1585		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1586	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
1587	}	2152	}
1588		2153
1589	our %MAP_PREFETCH;	2154	our %MAP_PREFETCH;
1590	our $MAP_PREFETCHER = undef;	2155	our $MAP_PREFETCHER = undef;
1591		2156
1592	sub find_async {	2157	sub find_async {
1593	my ($path, $origin) = @_;	2158	my ($path, $origin, $load) = @_;
1594		2159
1595	$path = normalise $path, $origin && $origin->{path};	2160	$path = normalise $path, $origin && $origin->{path};
1596		2161
1597	if (my $map = $cf::MAP{$path}) {	2162	if (my $map = $cf::MAP{$path}) {
1598	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1599	}	2164	}
1600		2165
1601	undef $MAP_PREFETCH{$path};	2166	$MAP_PREFETCH{$path} |= $load;
		2167
1602	$MAP_PREFETCHER ||= cf::async {	2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
1603	while (%MAP_PREFETCH) {	2171	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	2172	while (my ($k, $v) = each %MAP_PREFETCH) {
1605	my $map = find $path	2173	if (my $map = find $k) {
1606	or next;
1607	$map->load;	2174	$map->load if $v;
		2175	}
1608		2176
1609	delete $MAP_PREFETCH{$path};	2177	delete $MAP_PREFETCH{$k};
1610	}	2178	}
1611	}	2179	}
1612	undef $MAP_PREFETCHER;	2180	undef $MAP_PREFETCHER;
1613	};	2181	};
1614	$MAP_PREFETCHER->prio (6);	2182	$MAP_PREFETCHER->prio (6);
…		…
1617	}	2185	}
1618		2186
1619	sub save {	2187	sub save {
1620	my ($self) = @_;	2188	my ($self) = @_;
1621		2189
1622	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1623		2191
1624	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1625		2193
1626	return unless $self->dirty;	2194	return unless $self->dirty;
1627		2195
…		…
1633	return if $self->{deny_save};	2201	return if $self->{deny_save};
1634		2202
1635	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1636		2204
1637	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1638	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1639	};	2208	};
		2209
		2210	cf::get_slot 0.02;
1640		2211
1641	if ($uniq) {	2212	if ($uniq) {
1642	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1643	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1644	} else {	2215	} else {
…		…
1650	my ($self) = @_;	2221	my ($self) = @_;
1651		2222
1652	# save first because save cedes	2223	# save first because save cedes
1653	$self->save;	2224	$self->save;
1654		2225
1655	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1656		2227
1657	return if $self->players;	2228	return if $self->players;
1658	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1659	return if $self->{deny_save};	2230	return if $self->{deny_save};
1660		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1661	$self->clear;	2236	$self->clear;
1662	$self->in_memory (cf::MAP_SWAPPED);
1663	}	2237	}
1664		2238
1665	sub reset_at {	2239	sub reset_at {
1666	my ($self) = @_;	2240	my ($self) = @_;
1667		2241
1668	# TODO: safety, remove and allow resettable per-player maps	2242	# TODO: safety, remove and allow resettable per-player maps
1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1670	return 1e99 if $self->{deny_reset};	2243	return 1e99 if $self->{deny_reset};
1671		2244
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2247
…		…
1685	my ($self) = @_;	2258	my ($self) = @_;
1686		2259
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2261
1689	return if $self->players;	2262	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2263
1692	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
1693		2265
1694	$self->in_memory (cf::MAP_SWAPPED);	2266	$self->in_memory (cf::MAP_SWAPPED);
1695		2267
1696	# need to save uniques path	2268	# need to save uniques path
1697	unless ($self->{deny_save}) {	2269	unless ($self->{deny_save}) {
…		…
1701	if $uniq;	2273	if $uniq;
1702	}	2274	}
1703		2275
1704	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1705		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
1706	$self->clear;	2280	$self->clear;
1707
1708	$_->clear_links_to ($self) for values %cf::MAP;
1709		2281
1710	$self->unlink_save;	2282	$self->unlink_save;
1711	$self->destroy;	2283	$self->destroy;
1712	}	2284	}
1713		2285
1714	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1715		2287
1716	sub nuke {	2288	sub nuke {
1717	my ($self) = @_;	2289	my ($self) = @_;
1718		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
1719	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1720		2295
1721	$self->unlink_save;	2296	$self->unlink_save;
1722		2297
1723	bless $self, "cf::map";	2298	bless $self, "cf::map";
1724	delete $self->{deny_reset};	2299	delete $self->{deny_reset};
1725	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1726	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1727	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1728		2303
1729	$cf::MAP{$self->path} = $self;	2304	$cf::MAP{$self->path} = $self;
		2305	}
1730		2306
1731	$self->reset; # polite request, might not happen	2307	$self->reset; # polite request, might not happen
		2308	}
		2309
		2310	=item $maps = cf::map::tmp_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	maps. May block.
		2314
		2315	=cut
		2316
		2317	sub tmp_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise $_
		2323	: ()
		2324	} @{ aio_readdir $TMPDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item $maps = cf::map::random_maps
		2329
		2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	random maps. May block.
		2332
		2333	=cut
		2334
		2335	sub random_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise "?random/$_"
		2341	: ()
		2342	} @{ aio_readdir $RANDOMDIR or [] }
		2343	]
1732	}	2344	}
1733		2345
1734	=item cf::map::unique_maps	2346	=item cf::map::unique_maps
1735		2347
1736	Returns an arrayref of paths of all shared maps that have	2348	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2349	instantiated unique items. May block.
1738		2350
1739	=cut	2351	=cut
1740		2352
1741	sub unique_maps() {	2353	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2354	[
1743	or return;	2355	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2356	utf8::decode $_;
1749	next if /\.pst$/;	2357	s/\.map$//; # TODO future compatibility hack
1750	next unless /^$PATH_SEP/o;	2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1751		2359	? ()
1752	push @paths, cf::map::normalise $_;	2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2362	]
1754
1755	\@paths
1756	}	2363	}
1757		2364
1758	package cf;	2365	=item cf::map::static_maps
		2366
		2367	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2368	file in the shared directory excluding F</styles> and F</editor>). May
		2369	block.
		2370
		2371	=cut
		2372
		2373	sub static_maps() {
		2374	my @dirs = "";
		2375	my @maps;
		2376
		2377	while (@dirs) {
		2378	my $dir = shift @dirs;
		2379
		2380	next if $dir eq "/styles" || $dir eq "/editor";
		2381
		2382	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2383	or return;
		2384
		2385	for (@$files) {
		2386	s/\.map$// or next;
		2387	utf8::decode $_;
		2388	push @maps, "$dir/$_";
		2389	}
		2390
		2391	push @dirs, map "$dir/$_", @$dirs;
		2392	}
		2393
		2394	\@maps
		2395	}
1759		2396
1760	=back	2397	=back
1761		2398
1762	=head3 cf::object	2399	=head3 cf::object
1763		2400
…		…
1767		2404
1768	=over 4	2405	=over 4
1769		2406
1770	=item $ob->inv_recursive	2407	=item $ob->inv_recursive
1771		2408
1772	Returns the inventory of the object _and_ their inventories, recursively.	2409	Returns the inventory of the object I<and> their inventories, recursively,
		2410	but I<not> the object itself.
1773		2411
1774	=cut	2412	=cut
1775		2413
1776	sub inv_recursive_;	2414	sub inv_recursive_;
1777	sub inv_recursive_ {	2415	sub inv_recursive_ {
…		…
1780		2418
1781	sub inv_recursive {	2419	sub inv_recursive {
1782	inv_recursive_ inv $_[0]	2420	inv_recursive_ inv $_[0]
1783	}	2421	}
1784		2422
		2423	=item $ref = $ob->ref
		2424
		2425	Creates and returns a persistent reference to an object that can be stored as a string.
		2426
		2427	=item $ob = cf::object::deref ($refstring)
		2428
		2429	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2430	even if the object actually exists. May block.
		2431
		2432	=cut
		2433
		2434	sub deref {
		2435	my ($ref) = @_;
		2436
		2437	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2438	my ($uuid, $name) = ($1, $2);
		2439	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2440	or return;
		2441	$pl->ob->uuid eq $uuid
		2442	or return;
		2443
		2444	$pl->ob
		2445	} else {
		2446	warn "$ref: cannot resolve object reference\n";
		2447	undef
		2448	}
		2449	}
		2450
1785	package cf;	2451	package cf;
1786		2452
1787	=back	2453	=back
1788		2454
1789	=head3 cf::object::player	2455	=head3 cf::object::player
…		…
1795	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2461	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1796	can be C<undef>. Does the right thing when the player is currently in a	2462	can be C<undef>. Does the right thing when the player is currently in a
1797	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1798		2464
1799	=cut	2465	=cut
		2466
		2467	our $SAY_CHANNEL = {
		2468	id => "say",
		2469	title => "Map",
		2470	reply => "say ",
		2471	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2472	};
		2473
		2474	our $CHAT_CHANNEL = {
		2475	id => "chat",
		2476	title => "Chat",
		2477	reply => "chat ",
		2478	tooltip => "Player chat and shouts, global to the server.",
		2479	};
1800		2480
1801	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1802	# with dialog boxes.	2482	# with dialog boxes.
1803	#TODO: the first argument must go, split into a $npc->reply_to ( method	2483	#TODO: the first argument must go, split into a $npc->reply_to ( method
1804	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1806		2486
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2488
1809	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1811	} else {	2492	} else {
		2493	my $pl = $self->contr;
		2494
		2495	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2496	my $dialog = $pl->{npc_dialog};
		2497	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2498
		2499	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1814	}	2503	}
		2504	}
		2505
		2506	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	=cut
		2509
		2510	sub cf::object::send_msg {
		2511	my $pl = shift->contr
		2512	or return;
		2513	$pl->send_msg (@_);
1815	}	2514	}
1816		2515
1817	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1818		2517
1819	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1832		2531
1833	=item $player_object->enter_link	2532	=item $player_object->enter_link
1834		2533
1835	Freezes the player and moves him/her to a special map (C<{link}>).	2534	Freezes the player and moves him/her to a special map (C<{link}>).
1836		2535
1837	The player should be reasonably safe there for short amounts of time. You	2536	The player should be reasonably safe there for short amounts of time (e.g.
1838	I<MUST> call C<leave_link> as soon as possible, though.	2537	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2538	though, as the palyer cannot control the character while it is on the link
		2539	map.
1839		2540
1840	Will never block.	2541	Will never block.
1841		2542
1842	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1843		2544
…		…
1866	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1867		2568
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2570
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1872		2573
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2575	}
1875		2576
1876	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1878		2581
1879	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1880		2583
1881	unless ($map) {	2584	unless ($map) {
1882	# restore original map position	2585	# restore original map position
…		…
1893	($x, $y) = (-1, -1)	2596	($x, $y) = (-1, -1)
1894	unless (defined $x) && (defined $y);	2597	unless (defined $x) && (defined $y);
1895		2598
1896	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2601	if $x <= 0 && $y <= 0;
1899		2602
1900	$map->load;	2603	$map->load;
1901	$map->load_diag;	2604	$map->load_neighbours;
1902		2605
1903	return unless $self->contr->active;	2606	return unless $self->contr->active;
1904	$self->activate_recursive;
1905		2607
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2609	$self->enter_map ($map, $x, $y);
1908	}
1909		2610
1910	cf::player->attach (	2611	# only activate afterwards, to support waiting in hooks
1911	on_logout => sub {	2612	$self->activate_recursive;
1912	my ($pl) = @_;	2613	}
1913		2614
1914	# abort map switching before logout	2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1915	if ($pl->ob->{_link_pos}) {
1916	cf::sync_job {
1917	$pl->ob->leave_link
1918	};
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2616
1924	# try to abort aborted map switching on player login :)	2617	Moves the player to the given map-path and coordinates by first freezing
1925	# should happen only on crashes	2618	her, loading and preparing them map, calling the provided $check callback
1926	if ($pl->ob->{_link_pos}) {	2619	that has to return the map if sucecssful, and then unfreezes the player on
1927	$pl->ob->enter_link;	2620	the new (success) or old (failed) map position. In either case, $done will
1928	(async {	2621	be called at the end of this process.
1929	$pl->ob->reply (undef,
1930	"There was an internal problem at your last logout, "
1931	. "the server will try to bring you to your intended destination in a second.",
1932	cf::NDI_RED);
1933	# we need this sleep as the login has a concurrent enter_exit running
1934	# and this sleep increases chances of the player not ending up in scorn
1935	Coro::Timer::sleep 1;
1936	$pl->ob->leave_link;
1937	})->prio (2);
1938	}
1939	},
1940	);
1941		2622
1942	=item $player_object->goto ($path, $x, $y)	2623	Note that $check will be called with a potentially non-loaded map, so if
		2624	it needs a loaded map it has to call C<< ->load >>.
1943		2625
1944	=cut	2626	=cut
		2627
		2628	our $GOTOGEN;
1945		2629
1946	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2631	my ($self, $path, $x, $y, $check, $done) = @_;
		2632
		2633	# do generation counting so two concurrent goto's will be executed in-order
		2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2635
1949	$self->enter_link;	2636	$self->enter_link;
1950		2637
1951	(async {	2638	(async {
		2639	$Coro::current->{desc} = "player::goto $path $x $y";
		2640
		2641	# *tag paths override both path and x|y
		2642	if ($path =~ /^\*(.*)$/) {
		2643	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2644	my $ob = $obs[rand @obs];
		2645
		2646	# see if we actually can go there
		2647	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2648	$ob = $obs[rand @obs];
		2649	} else {
		2650	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	}
		2652	# else put us there anyways for now #d#
		2653
		2654	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2655	} else {
		2656	($path, $x, $y) = (undef, undef, undef);
		2657	}
		2658	}
		2659
1952	my $map = eval {	2660	my $map = eval {
1953	my $map = cf::map::find $path;	2661	my $map = defined $path ? cf::map::find $path : undef;
		2662
		2663	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2664	$map = $map->customise_for ($self);
		2665	$map = $check->($map) if $check && $map;
		2666	} else {
		2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2668	}
		2669
1955	$map	2670	$map
		2671	};
		2672
		2673	if ($@) {
		2674	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2675	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2676	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
1960	})->prio (1);	2684	})->prio (1);
1961	}	2685	}
1962		2686
1963	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
1964		2688
…		…
1984	}	2708	}
1985		2709
1986	sub prepare_random_map {	2710	sub prepare_random_map {
1987	my ($exit) = @_;	2711	my ($exit) = @_;
1988		2712
1989	my $guard = cf::lock_acquire "exit_prepare:$exit";
1990
1991	# all this does is basically replace the /! path by	2713	# all this does is basically replace the /! path by
1992	# a new random map path (?random/...) with a seed	2714	# a new random map path (?random/...) with a seed
1993	# that depends on the exit object	2715	# that depends on the exit object
1994		2716
1995	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
…		…
1997	if ($exit->map) {	2719	if ($exit->map) {
1998	$rmp->{region} = $exit->region->name;	2720	$rmp->{region} = $exit->region->name;
1999	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
2000	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
2001	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
2002	}	2726	}
2003		2727
2004	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
2005		2729
2006	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2007	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
2008	my $meta = "$RANDOMDIR/$md5.meta";	2732	my $meta = "$RANDOMDIR/$md5.meta";
2009		2733
2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2011	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
2012	undef $fh;	2736	undef $fh;
2013	aio_rename "$meta~", $meta;	2737	aio_rename "$meta~", $meta;
2014		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
2015	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
2016	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
2017	}	2745	}
2018	}	2746	}
2019		2747
2020	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
2021	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
2022		2750
2023	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
2024		2752
2025	if ($exit->slaying eq "/!") {
2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
2027	# the problem is that $exit might not survive long enough
2028	# so it needs to be done right now, right here
2029	cf::sync_job { prepare_random_map $exit };
2030	}
2031
2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2033	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;
2035
2036	$self->enter_link;	2753	$self->enter_link;
2037		2754
2038	(async {	2755	(async {
2039	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
2040	unless (eval {	2758	unless (eval {
		2759	$self->deactivate_recursive; # just to be sure
		2760
		2761	# random map handling
		2762	{
		2763	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2764
		2765	prepare_random_map $exit
		2766	if $exit->slaying eq "/!";
		2767	}
		2768
		2769	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2770	my $x = $exit->stats->hp;
		2771	my $y = $exit->stats->sp;
		2772
2041	$self->goto ($slaying, $hp, $sp);	2773	$self->goto ($map, $x, $y);
2042		2774
		2775	# if exit is damned, update players death & WoR home-position
		2776	$self->contr->savebed ($map, $x, $y)
		2777	if $exit->flag (cf::FLAG_DAMNED);
		2778
2043	1;	2779	1
2044	}) {	2780	}) {
2045	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
2046	. "I'll try to bring you back to the map you were before. "	2782	. "I'll try to bring you back to the map you were before. "
2047	. "Please report this to the dungeon master!",	2783	. "Please report this to the dungeon master!",
2048	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
2049		2785
2050	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
…		…
2069		2805
2070	utf8::encode $text;	2806	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2807	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2808	}
2073		2809
		2810	=item $client->send_big_packet ($pkt)
		2811
		2812	Like C<send_packet>, but tries to compress large packets, and fragments
		2813	them as required.
		2814
		2815	=cut
		2816
		2817	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2818
		2819	sub cf::client::send_big_packet {
		2820	my ($self, $pkt) = @_;
		2821
		2822	# try lzf for large packets
		2823	$pkt = "lzf " . Compress::LZF::compress $pkt
		2824	if 1024 <= length $pkt and $self->{can_lzf};
		2825
		2826	# split very large packets
		2827	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2828	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2829	$pkt = "frag";
		2830	}
		2831
		2832	$self->send_packet ($pkt);
		2833	}
		2834
		2835	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2836
		2837	Send a drawinfo or msg packet to the client, formatting the msg for the
		2838	client if neccessary. C<$type> should be a string identifying the type of
		2839	the message, with C<log> being the default. If C<$color> is negative, suppress
		2840	the message unless the client supports the msg packet.
		2841
		2842	=cut
		2843
		2844	# non-persistent channels (usually the info channel)
		2845	our %CHANNEL = (
		2846	"c/motd" => {
		2847	id => "infobox",
		2848	title => "MOTD",
		2849	reply => undef,
		2850	tooltip => "The message of the day",
		2851	},
		2852	"c/identify" => {
		2853	id => "infobox",
		2854	title => "Identify",
		2855	reply => undef,
		2856	tooltip => "Items recently identified",
		2857	},
		2858	"c/examine" => {
		2859	id => "infobox",
		2860	title => "Examine",
		2861	reply => undef,
		2862	tooltip => "Signs and other items you examined",
		2863	},
		2864	"c/shopinfo" => {
		2865	id => "infobox",
		2866	title => "Shop Info",
		2867	reply => undef,
		2868	tooltip => "What your bargaining skill tells you about the shop",
		2869	},
		2870	"c/book" => {
		2871	id => "infobox",
		2872	title => "Book",
		2873	reply => undef,
		2874	tooltip => "The contents of a note or book",
		2875	},
		2876	"c/lookat" => {
		2877	id => "infobox",
		2878	title => "Look",
		2879	reply => undef,
		2880	tooltip => "What you saw there",
		2881	},
		2882	"c/who" => {
		2883	id => "infobox",
		2884	title => "Players",
		2885	reply => undef,
		2886	tooltip => "Shows players who are currently online",
		2887	},
		2888	"c/body" => {
		2889	id => "infobox",
		2890	title => "Body Parts",
		2891	reply => undef,
		2892	tooltip => "Shows which body parts you posess and are available",
		2893	},
		2894	"c/statistics" => {
		2895	id => "infobox",
		2896	title => "Statistics",
		2897	reply => undef,
		2898	tooltip => "Shows your primary statistics",
		2899	},
		2900	"c/skills" => {
		2901	id => "infobox",
		2902	title => "Skills",
		2903	reply => undef,
		2904	tooltip => "Shows your experience per skill and item power",
		2905	},
		2906	"c/shopitems" => {
		2907	id => "infobox",
		2908	title => "Shop Items",
		2909	reply => undef,
		2910	tooltip => "Shows the items currently for sale in this shop",
		2911	},
		2912	"c/resistances" => {
		2913	id => "infobox",
		2914	title => "Resistances",
		2915	reply => undef,
		2916	tooltip => "Shows your resistances",
		2917	},
		2918	"c/pets" => {
		2919	id => "infobox",
		2920	title => "Pets",
		2921	reply => undef,
		2922	tooltip => "Shows information abotu your pets/a specific pet",
		2923	},
		2924	"c/perceiveself" => {
		2925	id => "infobox",
		2926	title => "Perceive Self",
		2927	reply => undef,
		2928	tooltip => "You gained detailed knowledge about yourself",
		2929	},
		2930	"c/uptime" => {
		2931	id => "infobox",
		2932	title => "Uptime",
		2933	reply => undef,
		2934	tooltip => "How long the server has been running since last restart",
		2935	},
		2936	"c/mapinfo" => {
		2937	id => "infobox",
		2938	title => "Map Info",
		2939	reply => undef,
		2940	tooltip => "Information related to the maps",
		2941	},
		2942	"c/party" => {
		2943	id => "party",
		2944	title => "Party",
		2945	reply => "gsay ",
		2946	tooltip => "Messages and chat related to your party",
		2947	},
		2948	"c/death" => {
		2949	id => "death",
		2950	title => "Death",
		2951	reply => undef,
		2952	tooltip => "Reason for and more info about your most recent death",
		2953	},
		2954	"c/say" => $SAY_CHANNEL,
		2955	"c/chat" => $CHAT_CHANNEL,
		2956	);
		2957
		2958	sub cf::client::send_msg {
		2959	my ($self, $channel, $msg, $color, @extra) = @_;
		2960
		2961	$msg = $self->pl->expand_cfpod ($msg)
		2962	unless $color & cf::NDI_VERBATIM;
		2963
		2964	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2965
		2966	# check predefined channels, for the benefit of C
		2967	if ($CHANNEL{$channel}) {
		2968	$channel = $CHANNEL{$channel};
		2969
		2970	$self->ext_msg (channel_info => $channel);
		2971	$channel = $channel->{id};
		2972
		2973	} elsif (ref $channel) {
		2974	# send meta info to client, if not yet sent
		2975	unless (exists $self->{channel}{$channel->{id}}) {
		2976	$self->{channel}{$channel->{id}} = $channel;
		2977	$self->ext_msg (channel_info => $channel);
		2978	}
		2979
		2980	$channel = $channel->{id};
		2981	}
		2982
		2983	return unless @extra || length $msg;
		2984
		2985	# default colour, mask it out
		2986	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2987	if $color & cf::NDI_DEF;
		2988
		2989	my $pkt = "msg "
		2990	. $self->{json_coder}->encode (
		2991	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2992	);
		2993
		2994	$self->send_big_packet ($pkt);
		2995	}
		2996
2074	=item $client->ext_event ($type, %msg)	2997	=item $client->ext_msg ($type, @msg)
2075		2998
2076	Sends an exti event to the client.	2999	Sends an ext event to the client.
2077		3000
2078	=cut	3001	=cut
2079		3002
2080	sub cf::client::ext_event($$%) {	3003	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	3004	my ($self, $type, @msg) = @_;
2082		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	3009	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
		3013
		3014	=item $client->ext_reply ($msgid, @msg)
		3015
		3016	Sends an ext reply to the client.
		3017
		3018	=cut
		3019
		3020	sub cf::client::ext_reply($$@) {
		3021	my ($self, $id, @msg) = @_;
		3022
		3023	if ($self->extcmd == 2) {
		3024	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3025	} elsif ($self->extcmd == 1) {
		3026	#TODO: version 1, remove
		3027	unshift @msg, msgtype => "reply", msgid => $id;
		3028	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3029	}
2085	}	3030	}
2086		3031
2087	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
2088		3033
2089	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3035	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3036	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		3037
2093	Queries can fail, so check the return code. Or don't, as queries will become	3038	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	3039	become reliable at some point in the future.
2095		3040
2096	=cut	3041	=cut
2097		3042
2098	sub cf::client::query {	3043	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	3052	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		3054
2110	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
2112	}	3059	}
2113		3060
2114	cf::client->attach (	3061	cf::client->attach (
		3062	on_connect => sub {
		3063	my ($ns) = @_;
		3064
		3065	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3066	},
2115	on_reply => sub {	3067	on_reply => sub {
2116	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
2117		3069
2118	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
2119	# get handled first	3071	# get handled first
…		…
2131	} else {	3083	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	3085	}
2134	}	3086	}
2135	},	3087	},
		3088	on_exticmd => sub {
		3089	my ($ns, $buf) = @_;
		3090
		3091	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3092
		3093	if (ref $msg) {
		3094	my ($type, $reply, @payload) =
		3095	"ARRAY" eq ref $msg
		3096	? @$msg
		3097	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3098
		3099	my @reply;
		3100
		3101	if (my $cb = $EXTICMD{$type}) {
		3102	@reply = $cb->($ns, @payload);
		3103	}
		3104
		3105	$ns->ext_reply ($reply, @reply)
		3106	if $reply;
		3107
		3108	} else {
		3109	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3110	}
		3111
		3112	cf::override;
		3113	},
2136	);	3114	);
2137		3115
2138	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
2139		3117
2140	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
2156		3134
2157	$coro	3135	$coro
2158	}	3136	}
2159		3137
2160	cf::client->attach (	3138	cf::client->attach (
2161	on_destroy => sub {	3139	on_client_destroy => sub {
2162	my ($ns) = @_;	3140	my ($ns) = @_;
2163		3141
2164	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3142	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2165	},	3143	},
2166	);	3144	);
…		…
2181	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
2183		3161
2184	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
2185		3163
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3164	$safe->permit_only (Opcode::opset qw(
		3165	:base_core :base_mem :base_orig :base_math :base_loop
		3166	grepstart grepwhile mapstart mapwhile
		3167	sort time
		3168	));
2187		3169
2188	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
2189		3171
2190	=pod	3172	=pod
2191		3173
2192	The following functions and methods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
2193		3175
2194	cf::object contr pay_amount pay_player map	3176	cf::object
		3177	contr pay_amount pay_player map x y force_find force_add destroy
		3178	insert remove name archname title slaying race decrease split
		3179	value
		3180
2195	cf::object::player player	3181	cf::object::player
2196	cf::player peaceful	3182	player
2197	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
2198		3189
2199	=cut	3190	=cut
2200		3191
2201	for (	3192	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	3193	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3194	insert remove inv nrof name archname title slaying race
		3195	decrease split destroy change_exp value msg lore send_msg)],
2203	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
2205	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
2206	) {	3199	) {
2207	no strict 'refs';	3200	no strict 'refs';
2208	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
2209	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2227		3220
2228	my $qcode = $code;	3221	my $qcode = $code;
2229	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2230	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
2231		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
2232	local $_;	3228	local $_;
2233	local @safe::cf::_safe_eval_args = values %vars;
2234		3229
2235	my $eval =	3230	my $eval =
2236	"do {\n"	3231	"do {\n"
2237	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2238	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
2239	. $code	3234	. $code
2240	. "\n}"	3235	. "\n}"
2241	;	3236	;
2242		3237
		3238	if ($CFG{safe_eval}) {
2243	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
2244	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2245	sub_generation_inc;	3242	sub_generation_inc;
		3243	} else {
		3244	local @cf::_safe_eval_args = values %vars;
		3245	@res = wantarray ? eval eval : scalar eval $eval;
		3246	}
2246		3247
2247	if ($@) {	3248	if ($@) {
2248	warn "$@";	3249	warn "$@";
2249	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
2250	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2269	=cut	3270	=cut
2270		3271
2271	sub register_script_function {	3272	sub register_script_function {
2272	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
2273		3274
2274	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
2275	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
2276	}	3277	}
2277		3278
2278	=back	3279	=back
2279		3280
2280	=cut	3281	=cut
2281
2282	#############################################################################
2283
2284	=head2 EXTENSION DATABASE SUPPORT
2285
2286	Crossfire maintains a very simple database for extension use. It can
2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2288	convert to/from binary).
2289
2290	The parameter C<$family> should best start with the name of the extension
2291	using it, it should be unique.
2292
2293	=over 4
2294
2295	=item $value = cf::db_get $family => $key
2296
2297	Returns a single value from the database.
2298
2299	=item cf::db_put $family => $key => $value
2300
2301	Stores the given C<$value> in the family.
2302
2303	=cut
2304
2305	our $DB;
2306
2307	sub db_init {
2308	unless ($DB) {
2309	$DB = BDB::db_create $DB_ENV;
2310
2311	cf::sync_job {
2312	eval {
2313	$DB->set_flags (BDB::CHKSUM);
2314
2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2317	cf::cleanup "db_open(db): $!" if $!;
2318	};
2319	cf::cleanup "db_open(db): $@" if $@;
2320	};
2321	}
2322	}
2323
2324	sub db_get($$) {
2325	my $key = "$_[0]/$_[1]";
2326
2327	cf::sync_job {
2328	BDB::db_get $DB, undef, $key, my $data;
2329
2330	$! ? ()
2331	: $data
2332	}
2333	}
2334
2335	sub db_put($$$) {
2336	BDB::dbreq_pri 4;
2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2338	}
2339
2340	=item cf::cache $id => [$paths...], $processversion => $process
2341
2342	Generic caching function that returns the value of the resource $id,
2343	caching and regenerating as required.
2344
2345	This function can block.
2346
2347	=cut
2348
2349	sub cache {
2350	my ($id, $src, $processversion, $process) = @_;
2351
2352	my $meta =
2353	join "\x00",
2354	$processversion,
2355	map {
2356	aio_stat $_
2357	and Carp::croak "$_: $!";
2358
2359	($_, (stat _)[7,9])
2360	} @$src;
2361
2362	my $dbmeta = db_get cache => "$id/meta";
2363	if ($dbmeta ne $meta) {
2364	# changed, we may need to process
2365
2366	my @data;
2367	my $md5;
2368
2369	for (0 .. $#$src) {
2370	0 <= aio_load $src->[$_], $data[$_]
2371	or Carp::croak "$src->[$_]: $!";
2372	}
2373
2374	# if processing is expensive, check
2375	# checksum first
2376	if (1) {
2377	$md5 =
2378	join "\x00",
2379	$processversion,
2380	map {
2381	Coro::cede;
2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
2383	} 0.. $#$src;
2384
2385
2386	my $dbmd5 = db_get cache => "$id/md5";
2387	if ($dbmd5 eq $md5) {
2388	db_put cache => "$id/meta", $meta;
2389
2390	return db_get cache => "$id/data";
2391	}
2392	}
2393
2394	my $t1 = Time::HiRes::time;
2395	my $data = $process->(\@data);
2396	my $t2 = Time::HiRes::time;
2397
2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400	db_put cache => "$id/data", $data;
2401	db_put cache => "$id/md5" , $md5;
2402	db_put cache => "$id/meta", $meta;
2403
2404	return $data;
2405	}
2406
2407	db_get cache => "$id/data"
2408	}
2409
2410	=item fork_call { }, $args
2411
2412	Executes the given code block with the given arguments in a seperate
2413	process, returning the results. Everything must be serialisable with
2414	Coro::Storable. May, of course, block. Note that the executed sub may
2415	never block itself or use any form of Event handling.
2416
2417	=cut
2418
2419	sub fork_call(&@) {
2420	my ($cb, @args) = @_;
2421
2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423	# or die "socketpair: $!";
2424	pipe my $fh1, my $fh2
2425	or die "pipe: $!";
2426
2427	if (my $pid = fork) {
2428	close $fh2;
2429
2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431	$res = Coro::Storable::thaw $res;
2432
2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435	die $$res unless "ARRAY" eq ref $res;
2436
2437	return wantarray ? @$res : $res->[-1];
2438	} else {
2439	local $SIG{__WARN__};
2440	eval {
2441	local $SIG{__DIE__};
2442	close $fh1;
2443
2444	my @res = eval { $cb->(@args) };
2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446	};
2447
2448	warn $@ if $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454		3282
2455	#############################################################################	3283	#############################################################################
2456	# the server's init and main functions	3284	# the server's init and main functions
2457		3285
2458	sub load_facedata($) {	3286	sub load_facedata($) {
2459	my ($path) = @_;	3287	my ($path) = @_;
		3288
		3289	# HACK to clear player env face cache, we need some signal framework
		3290	# for this (global event?)
		3291	%ext::player_env::MUSIC_FACE_CACHE = ();
		3292
		3293	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2460		3294
2461	warn "loading facedata from $path\n";	3295	warn "loading facedata from $path\n";
2462		3296
2463	my $facedata;	3297	my $facedata;
2464	0 < aio_load $path, $facedata	3298	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	3301	$facedata = Coro::Storable::thaw $facedata;
2468		3302
2469	$facedata->{version} == 2	3303	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		3305
		3306	# patch in the exptable
		3307	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3308	$facedata->{resource}{"res/exp_table"} = {
		3309	type => FT_RSRC,
		3310	data => $exp_table,
		3311	hash => (Digest::MD5::md5 $exp_table),
		3312	};
		3313	cf::cede_to_tick;
		3314
2472	{	3315	{
2473	my $faces = $facedata->{faceinfo};	3316	my $faces = $facedata->{faceinfo};
2474		3317
2475	while (my ($face, $info) = each %$faces) {	3318	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3320
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2480	Coro::cede;	3325
		3326	cf::cede_to_tick;
2481	}	3327	}
2482		3328
2483	while (my ($face, $info) = each %$faces) {	3329	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	3330	next unless $info->{smooth};
		3331
2485	my $idx = cf::face::find $face	3332	my $idx = cf::face::find $face
2486	or next;	3333	or next;
		3334
2487	if (my $smooth = cf::face::find $info->{smooth}) {	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	3338	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	3340	}
2492	Coro::cede;	3341
		3342	cf::cede_to_tick;
2493	}	3343	}
2494	}	3344	}
2495		3345
2496	{	3346	{
2497	my $anims = $facedata->{animinfo};	3347	my $anims = $facedata->{animinfo};
2498		3348
2499	while (my ($anim, $info) = each %$anims) {	3349	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	3351	cf::cede_to_tick;
2502	}	3352	}
2503		3353
2504	cf::anim::invalidate_all; # d'oh	3354	cf::anim::invalidate_all; # d'oh
2505	}	3355	}
2506		3356
		3357	{
		3358	my $res = $facedata->{resource};
		3359
		3360	while (my ($name, $info) = each %$res) {
		3361	if (defined $info->{type}) {
		3362	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3363
		3364	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3365	cf::face::set_type $idx, $info->{type};
		3366	} else {
		3367	$RESOURCE{$name} = $info;
		3368	}
		3369
		3370	cf::cede_to_tick;
		3371	}
		3372	}
		3373
		3374	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3375
2507	1	3376	1
2508	}	3377	}
2509		3378
		3379	cf::global->attach (on_resource_update => sub {
		3380	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3381	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3382
		3383	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3384	my $sound = $soundconf->{compat}[$_]
		3385	or next;
		3386
		3387	my $face = cf::face::find "sound/$sound->[1]";
		3388	cf::sound::set $sound->[0] => $face;
		3389	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3390	}
		3391
		3392	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3393	my $face = cf::face::find "sound/$v";
		3394	cf::sound::set $k => $face;
		3395	}
		3396	}
		3397	});
		3398
		3399	register_exticmd fx_want => sub {
		3400	my ($ns, $want) = @_;
		3401
		3402	while (my ($k, $v) = each %$want) {
		3403	$ns->fx_want ($k, $v);
		3404	}
		3405	};
		3406
		3407	sub load_resource_file($) {
		3408	my $guard = lock_acquire "load_resource_file";
		3409
		3410	my $status = load_resource_file_ $_[0];
		3411	get_slot 0.1, 100;
		3412	cf::arch::commit_load;
		3413
		3414	$status
		3415	}
		3416
2510	sub reload_regions {	3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
2511	load_resource_file "$MAPDIR/regions"	3422	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	3423	or die "unable to load regions file\n";
		3424
		3425	for (cf::region::list) {
		3426	$_->{match} = qr/$_->{match}/
		3427	if exists $_->{match};
		3428	}
2513	}	3429	}
2514		3430
2515	sub reload_facedata {	3431	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	3432	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	3433	or die "unable to load facedata\n";
…		…
2528	}	3444	}
2529		3445
2530	sub reload_resources {	3446	sub reload_resources {
2531	warn "reloading resource files...\n";	3447	warn "reloading resource files...\n";
2532		3448
2533	reload_regions;
2534	reload_facedata;	3449	reload_facedata;
2535	reload_archetypes;	3450	reload_archetypes;
		3451	reload_regions;
2536	reload_treasures;	3452	reload_treasures;
2537		3453
2538	warn "finished reloading resource files\n";	3454	warn "finished reloading resource files\n";
2539	}	3455	}
2540		3456
2541	sub init {	3457	sub reload_config {
2542	reload_resources;	3458	warn "reloading config file...\n";
2543	}
2544		3459
2545	sub cfg_load {
2546	open my $fh, "<:utf8", "$CONFDIR/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2547	or return;	3461	or return;
2548		3462
2549	local $/;	3463	local $/;
2550	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2551		3465
2552	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2553		3467
2554	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3468	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2555	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3469	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2559	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2560	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2561	};	3475	};
2562	warn $@ if $@;	3476	warn $@ if $@;
2563	}	3477	}
		3478
		3479	warn "finished reloading resource files\n";
		3480	}
		3481
		3482	sub pidfile() {
		3483	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3484	or die "$PIDFILE: $!";
		3485	flock $fh, &Fcntl::LOCK_EX
		3486	or die "$PIDFILE: flock: $!";
		3487	$fh
		3488	}
		3489
		3490	# make sure only one server instance is running at any one time
		3491	sub atomic {
		3492	my $fh = pidfile;
		3493
		3494	my $pid = <$fh>;
		3495	kill 9, $pid if $pid > 0;
		3496
		3497	seek $fh, 0, 0;
		3498	print $fh $$;
		3499	}
		3500
		3501	sub main_loop {
		3502	warn "EV::loop starting\n";
		3503	if (1) {
		3504	EV::loop;
		3505	}
		3506	warn "EV::loop returned\n";
		3507	goto &main_loop unless $REALLY_UNLOOP;
2564	}	3508	}
2565		3509
2566	sub main {	3510	sub main {
		3511	cf::init_globals; # initialise logging
		3512
		3513	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3514	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3515	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3516	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3517
		3518	cf::init_experience;
		3519	cf::init_anim;
		3520	cf::init_attackmess;
		3521	cf::init_dynamic;
		3522
		3523	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3524
2567	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2568	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2569	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3527	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2570	(async {	3528	(async {
2571	Event::one_event;	3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
2572	})->prio (Coro::PRIO_MAX);	3531	})->prio (Coro::PRIO_MAX);
2573	};	3532	};
2574		3533
2575	cfg_load;	3534	evthread_start IO::AIO::poll_fileno;
		3535
		3536	cf::sync_job {
		3537	cf::load_settings;
		3538	cf::load_materials;
		3539
		3540	reload_resources;
		3541	reload_config;
2576	db_init;	3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_commands;
		3547	cf::init_skills;
		3548
		3549	cf::init_beforeplay;
		3550
		3551	atomic;
		3552
2577	load_extensions;	3553	load_extensions;
2578		3554
2579	$TICK_WATCHER->start;	3555	utime time, time, $RUNTIMEFILE;
2580	Event::loop;	3556
		3557	# no (long-running) fork's whatsoever before this point(!)
		3558	use POSIX ();
		3559	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3560
		3561	(pop @POST_INIT)->(0) while @POST_INIT;
		3562	};
		3563
		3564	main_loop;
2581	}	3565	}
2582		3566
2583	#############################################################################	3567	#############################################################################
2584	# initialisation and cleanup	3568	# initialisation and cleanup
2585		3569
2586	# install some emergency cleanup handlers	3570	# install some emergency cleanup handlers
2587	BEGIN {	3571	BEGIN {
		3572	our %SIGWATCHER = ();
2588	for my $signal (qw(INT HUP TERM)) {	3573	for my $signal (qw(INT HUP TERM)) {
2589	Event->signal (	3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2590	reentrant => 0,
2591	data => WF_AUTOCANCEL,
2592	signal => $signal,
2593	prio => 0,
2594	cb => sub {
2595	cf::cleanup "SIG$signal";	3575	cf::cleanup "SIG$signal";
2596	},
2597	);	3576	};
		3577	}
		3578	}
		3579
		3580	sub write_runtime_sync {
		3581	my $t0 = EV::time;
		3582
		3583	# first touch the runtime file to show we are still running:
		3584	# the fsync below can take a very very long time.
		3585
		3586	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3587
		3588	my $guard = cf::lock_acquire "write_runtime";
		3589
		3590	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3591	or return;
		3592
		3593	my $value = $cf::RUNTIME + 90 + 10;
		3594	# 10 is the runtime save interval, for a monotonic clock
		3595	# 60 allows for the watchdog to kill the server.
		3596
		3597	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3598	and return;
		3599
		3600	# always fsync - this file is important
		3601	aio_fsync $fh
		3602	and return;
		3603
		3604	# touch it again to show we are up-to-date
		3605	aio_utime $fh, undef, undef;
		3606
		3607	close $fh
		3608	or return;
		3609
		3610	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3611	and return;
		3612
		3613	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3614
2598	}	3615	1
		3616	}
		3617
		3618	our $uuid_lock;
		3619	our $uuid_skip;
		3620
		3621	sub write_uuid_sync($) {
		3622	$uuid_skip ||= $_[0];
		3623
		3624	return if $uuid_lock;
		3625	local $uuid_lock = 1;
		3626
		3627	my $uuid = "$LOCALDIR/uuid";
		3628
		3629	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3630	or return;
		3631
		3632	my $value = uuid_seq uuid_cur;
		3633
		3634	unless ($value) {
		3635	warn "cowardly refusing to write zero uuid value!\n";
		3636	return;
		3637	}
		3638
		3639	my $value = uuid_str $value + $uuid_skip;
		3640	$uuid_skip = 0;
		3641
		3642	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3643	and return;
		3644
		3645	# always fsync - this file is important
		3646	aio_fsync $fh
		3647	and return;
		3648
		3649	close $fh
		3650	or return;
		3651
		3652	aio_rename "$uuid~", $uuid
		3653	and return;
		3654
		3655	warn "uuid file written ($value).\n";
		3656
		3657	1
		3658
		3659	}
		3660
		3661	sub write_uuid($$) {
		3662	my ($skip, $sync) = @_;
		3663
		3664	$sync ? write_uuid_sync $skip
		3665	: async { write_uuid_sync $skip };
2599	}	3666	}
2600		3667
2601	sub emergency_save() {	3668	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3669	my $freeze_guard = cf::freeze_mainloop;
2603		3670
2604	warn "enter emergency perl save\n";	3671	warn "emergency_perl_save: enter\n";
2605		3672
2606	cf::sync_job {	3673	cf::sync_job {
		3674	# this is a trade-off: we want to be very quick here, so
		3675	# save all maps without fsync, and later call a global sync
		3676	# (which in turn might be very very slow)
		3677	local $USE_FSYNC = 0;
		3678
2607	# use a peculiar iteration method to avoid tripping on perl	3679	# use a peculiar iteration method to avoid tripping on perl
2608	# refcount bugs in for. also avoids problems with players	3680	# refcount bugs in for. also avoids problems with players
2609	# and maps saved/destroyed asynchronously.	3681	# and maps saved/destroyed asynchronously.
2610	warn "begin emergency player save\n";	3682	warn "emergency_perl_save: begin player save\n";
2611	for my $login (keys %cf::PLAYER) {	3683	for my $login (keys %cf::PLAYER) {
2612	my $pl = $cf::PLAYER{$login} or next;	3684	my $pl = $cf::PLAYER{$login} or next;
2613	$pl->valid or next;	3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2614	$pl->save;	3687	$pl->save;
2615	}	3688	}
2616	warn "end emergency player save\n";	3689	warn "emergency_perl_save: end player save\n";
2617		3690
2618	warn "begin emergency map save\n";	3691	warn "emergency_perl_save: begin map save\n";
2619	for my $path (keys %cf::MAP) {	3692	for my $path (keys %cf::MAP) {
2620	my $map = $cf::MAP{$path} or next;	3693	my $map = $cf::MAP{$path} or next;
2621	$map->valid or next;	3694	$map->valid or next;
2622	$map->save;	3695	$map->save;
2623	}	3696	}
2624	warn "end emergency map save\n";	3697	warn "emergency_perl_save: end map save\n";
2625		3698
2626	warn "begin emergency database checkpoint\n";	3699	warn "emergency_perl_save: begin database checkpoint\n";
2627	BDB::db_env_txn_checkpoint $DB_ENV;	3700	BDB::db_env_txn_checkpoint $DB_ENV;
2628	warn "end emergency database checkpoint\n";	3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
2629	};	3706	};
2630		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
2631	warn "leave emergency perl save\n";	3713	warn "emergency_perl_save: leave\n";
2632	}	3714	}
2633		3715
2634	sub post_cleanup {	3716	sub post_cleanup {
2635	my ($make_core) = @_;	3717	my ($make_core) = @_;
2636		3718
2637	warn Carp::longmess "post_cleanup backtrace"	3719	warn Carp::longmess "post_cleanup backtrace"
2638	if $make_core;	3720	if $make_core;
		3721
		3722	my $fh = pidfile;
		3723	unlink $PIDFILE if <$fh> == $$;
		3724	}
		3725
		3726	# a safer delete_package, copied from Symbol
		3727	sub clear_package($) {
		3728	my $pkg = shift;
		3729
		3730	# expand to full symbol table name if needed
		3731	unless ($pkg =~ /^main::.*::$/) {
		3732	$pkg = "main$pkg" if $pkg =~ /^::/;
		3733	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3734	$pkg .= '::' unless $pkg =~ /::$/;
		3735	}
		3736
		3737	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3738	my $stem_symtab = *{$stem}{HASH};
		3739
		3740	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3741	or return;
		3742
		3743	# clear all symbols
		3744	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3745	for my $name (keys %$leaf_symtab) {
		3746	_gv_clear *{"$pkg$name"};
		3747	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3748	}
		3749	warn "cleared package $pkg\n";#d#
2639	}	3750	}
2640		3751
2641	sub do_reload_perl() {	3752	sub do_reload_perl() {
2642	# can/must only be called in main	3753	# can/must only be called in main
2643	if ($Coro::current != $Coro::main) {	3754	if ($Coro::current != $Coro::main) {
2644	warn "can only reload from main coroutine";	3755	warn "can only reload from main coroutine";
2645	return;	3756	return;
2646	}	3757	}
2647		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
2648	warn "reloading...";	3764	warn "reloading...";
2649		3765
2650	warn "entering sync_job";	3766	warn "entering sync_job";
2651		3767
2652	cf::sync_job {	3768	cf::sync_job {
2653	cf::write_runtime; # external watchdog should not bark	3769	cf::write_runtime_sync; # external watchdog should not bark
2654	cf::emergency_save;	3770	cf::emergency_save;
2655	cf::write_runtime; # external watchdog should not bark	3771	cf::write_runtime_sync; # external watchdog should not bark
2656		3772
2657	warn "syncing database to disk";	3773	warn "syncing database to disk";
2658	BDB::db_env_txn_checkpoint $DB_ENV;	3774	BDB::db_env_txn_checkpoint $DB_ENV;
2659		3775
2660	# if anything goes wrong in here, we should simply crash as we already saved	3776	# if anything goes wrong in here, we should simply crash as we already saved
2661		3777
2662	warn "cancelling all WF_AUTOCANCEL watchers";
2663	for (Event::all_watchers) {
2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2665	}
2666
2667	warn "flushing outstanding aio requests";	3778	warn "flushing outstanding aio requests";
2668	for (;;) {
2669	BDB::flush;
2670	IO::AIO::flush;
2671	Coro::cede;
2672	last unless IO::AIO::nreqs || BDB::nreqs;	3779	while (IO::AIO::nreqs || BDB::nreqs) {
2673	warn "iterate...";	3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2674	}
2675
2676	++$RELOAD;
2677
2678	warn "cancelling all extension coros";
2679	$_->cancel for values %EXT_CORO;
2680	%EXT_CORO = ();
2681
2682	warn "removing commands";
2683	%COMMAND = ();
2684
2685	warn "removing ext commands";
2686	%EXTCMD = ();
2687
2688	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";
2691
2692	if (my $cb = $pkg->can ("unload")) {
2693	eval {
2694	$cb->($pkg);
2695	1
2696	} or warn "$pkg unloaded, but with errors: $@";
2697	}	3781	}
2698		3782
2699	warn "... nuking $pkg";	3783	warn "cancelling all extension coros";
2700	Symbol::delete_package $pkg;	3784	$_->cancel for values %EXT_CORO;
2701	}	3785	%EXT_CORO = ();
2702		3786
2703	warn "unloading all perl modules loaded from $LIBDIR";	3787	warn "removing commands";
2704	while (my ($k, $v) = each %INC) {	3788	%COMMAND = ();
2705	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2706		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
2707	warn "... unloading $k";	3796	warn "... unloading $pkg";
2708	delete $INC{$k};
2709		3797
2710	$k =~ s/\.pm$//;
2711	$k =~ s/\//::/g;
2712
2713	if (my $cb = $k->can ("unload_module")) {	3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
2714	$cb->();	3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
2715	}	3807	}
2716		3808
2717	Symbol::delete_package $k;	3809	warn "unloading all perl modules loaded from $LIBDIR";
		3810	while (my ($k, $v) = each %INC) {
		3811	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3812
		3813	warn "... unloading $k";
		3814	delete $INC{$k};
		3815
		3816	$k =~ s/\.pm$//;
		3817	$k =~ s/\//::/g;
		3818
		3819	if (my $cb = $k->can ("unload_module")) {
		3820	$cb->();
		3821	}
		3822
		3823	clear_package $k;
2718	}	3824	}
2719		3825
2720	warn "getting rid of safe::, as good as possible";	3826	warn "getting rid of safe::, as good as possible";
2721	Symbol::delete_package "safe::$_"	3827	clear_package "safe::$_"
2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3828	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2723		3829
2724	warn "unloading cf.pm \"a bit\"";	3830	warn "unloading cf.pm \"a bit\"";
2725	delete $INC{"cf.pm"};	3831	delete $INC{"cf.pm"};
2726	delete $INC{"cf/pod.pm"};	3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2727		3833
2728	# don't, removes xs symbols, too,	3834	# don't, removes xs symbols, too,
2729	# and global variables created in xs	3835	# and global variables created in xs
2730	#Symbol::delete_package __PACKAGE__;	3836	#clear_package __PACKAGE__;
2731		3837
2732	warn "unload completed, starting to reload now";	3838	warn "unload completed, starting to reload now";
2733		3839
2734	warn "reloading cf.pm";	3840	warn "reloading cf.pm";
2735	require cf;	3841	require cf;
2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3842	cf::_connect_to_perl_1;
2737		3843
2738	warn "loading config and database again";	3844	warn "loading config and database again";
2739	cf::cfg_load;	3845	cf::reload_config;
2740		3846
2741	warn "loading extensions";	3847	warn "loading extensions";
2742	cf::load_extensions;	3848	cf::load_extensions;
2743		3849
		3850	if ($REATTACH_ON_RELOAD) {
2744	warn "reattaching attachments to objects/players";	3851	warn "reattaching attachments to objects/players";
2745	_global_reattach; # objects, sockets	3852	_global_reattach; # objects, sockets
2746	warn "reattaching attachments to maps";	3853	warn "reattaching attachments to maps";
2747	reattach $_ for values %MAP;	3854	reattach $_ for values %MAP;
2748	warn "reattaching attachments to players";	3855	warn "reattaching attachments to players";
2749	reattach $_ for values %PLAYER;	3856	reattach $_ for values %PLAYER;
		3857	}
2750		3858
		3859	warn "running post_init jobs";
		3860	(pop @POST_INIT)->(1) while @POST_INIT;
		3861
2751	warn "leaving sync_job";	3862	warn "leaving sync_job";
2752		3863
2753	1	3864	1
2754	} or do {	3865	} or do {
2755	warn $@;	3866	warn $@;
2756	warn "error while reloading, exiting.";	3867	cf::cleanup "error while reloading, exiting.";
2757	exit 1;
2758	};	3868	};
2759		3869
2760	warn "reloaded";	3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
2761	};	3876	};
2762		3877
2763	our $RELOAD_WATCHER; # used only during reload	3878	our $RELOAD_WATCHER; # used only during reload
2764		3879
2765	sub reload_perl() {	3880	sub reload_perl() {
2766	# doing reload synchronously and two reloads happen back-to-back,	3881	# doing reload synchronously and two reloads happen back-to-back,
2767	# coro crashes during coro_state_free->destroy here.	3882	# coro crashes during coro_state_free->destroy here.
2768		3883
2769	$RELOAD_WATCHER ||= Event->timer (	3884	$RELOAD_WATCHER ||= cf::async {
2770	reentrant => 0,	3885	Coro::AIO::aio_wait cache_extensions;
2771	after => 0,	3886
2772	data => WF_AUTOCANCEL,	3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2773	cb => sub {
2774	do_reload_perl;	3888	do_reload_perl;
2775	undef $RELOAD_WATCHER;	3889	undef $RELOAD_WATCHER;
2776	},	3890	};
2777	);	3891	};
2778	}	3892	}
2779		3893
2780	register_command "reload" => sub {	3894	register_command "reload" => sub {
2781	my ($who, $arg) = @_;	3895	my ($who, $arg) = @_;
2782		3896
2783	if ($who->flag (FLAG_WIZ)) {	3897	if ($who->flag (FLAG_WIZ)) {
2784	$who->message ("reloading server.");	3898	$who->message ("reloading server.");
		3899	async {
		3900	$Coro::current->{desc} = "perl_reload";
2785	async { reload_perl };	3901	reload_perl;
		3902	};
2786	}	3903	}
2787	};	3904	};
2788		3905
2789	unshift @INC, $LIBDIR;	3906	unshift @INC, $LIBDIR;
2790		3907
…		…
2792		3909
2793	our @WAIT_FOR_TICK;	3910	our @WAIT_FOR_TICK;
2794	our @WAIT_FOR_TICK_BEGIN;	3911	our @WAIT_FOR_TICK_BEGIN;
2795		3912
2796	sub wait_for_tick {	3913	sub wait_for_tick {
2797	return unless $TICK_WATCHER->is_active;
2798	return if $Coro::current == $Coro::main;	3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2799		3915
2800	my $signal = new Coro::Signal;	3916	my $signal = new Coro::Signal;
2801	push @WAIT_FOR_TICK, $signal;	3917	push @WAIT_FOR_TICK, $signal;
2802	$signal->wait;	3918	$signal->wait;
2803	}	3919	}
2804		3920
2805	sub wait_for_tick_begin {	3921	sub wait_for_tick_begin {
2806	return unless $TICK_WATCHER->is_active;
2807	return if $Coro::current == $Coro::main;	3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2808		3923
2809	my $signal = new Coro::Signal;	3924	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3925	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3926	$signal->wait;
2812	}	3927	}
2813		3928
2814	$TICK_WATCHER = Event->timer (	3929	sub tick {
2815	reentrant => 0,
2816	parked => 1,
2817	prio => 0,
2818	at => $NEXT_TICK || $TICK,
2819	data => WF_AUTOCANCEL,
2820	cb => sub {
2821	if ($Coro::current != $Coro::main) {	3930	if ($Coro::current != $Coro::main) {
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3931	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3932	unless ++$bug_warning > 10;
2824	return;	3933	return;
2825	}	3934	}
2826		3935
2827	$NOW = Event::time;
2828
2829	cf::server_tick; # one server iteration	3936	cf::server_tick; # one server iteration
2830		3937
2831	$RUNTIME += $TICK;	3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2832	$NEXT_TICK += $TICK;
2833		3939
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2835	$NEXT_RUNTIME_WRITE = $NOW + 10;	3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2836	Coro::async_pool {	3942	Coro::async_pool {
		3943	$Coro::current->{desc} = "runtime saver";
2837	write_runtime	3944	write_runtime_sync
2838	or warn "ERROR: unable to write runtime file: $!";	3945	or warn "ERROR: unable to write runtime file: $!";
2839	};
2840	}	3946	};
		3947	}
2841		3948
2842	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#
2844
2845	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2847
2848	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;
2850
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2852	$sig->send;	3950	$sig->send;
2853	}	3951	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {	3952	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;	3953	$sig->send;
2856	}
2857
2858	_post_tick;
2859	},	3954	}
2860	);	3955
		3956	$LOAD = ($NOW - $TICK_START) / $TICK;
		3957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3958
		3959	if (0) {
		3960	if ($NEXT_TICK) {
		3961	my $jitter = $TICK_START - $NEXT_TICK;
		3962	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3963	warn "jitter $JITTER\n";#d#
		3964	}
		3965	}
		3966	}
2861		3967
2862	{	3968	{
2863	BDB::max_poll_time $TICK * 0.1;	3969	# configure BDB
2864	$BDB_POLL_WATCHER = Event->io (	3970
2865	reentrant => 0,
2866	fd => BDB::poll_fileno,
2867	poll => 'r',
2868	prio => 0,
2869	data => WF_AUTOCANCEL,
2870	cb => \&BDB::poll_cb,
2871	);
2872	BDB::min_parallel 8;	3971	BDB::min_parallel 16;
2873		3972	BDB::max_poll_reqs $TICK * 0.1;
2874	BDB::set_sync_prepare {	3973	$AnyEvent::BDB::WATCHER->priority (1);
2875	my $status;
2876	my $current = $Coro::current;
2877	(
2878	sub {
2879	$status = $!;
2880	$current->ready; undef $current;
2881	},
2882	sub {
2883	Coro::schedule while defined $current;
2884	$! = $status;
2885	},
2886	)
2887	};
2888		3974
2889	unless ($DB_ENV) {	3975	unless ($DB_ENV) {
2890	$DB_ENV = BDB::db_env_create;	3976	$DB_ENV = BDB::db_env_create;
		3977	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3978	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3979	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3980	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3981	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2891		3982
2892	cf::sync_job {	3983	cf::sync_job {
2893	eval {	3984	eval {
2894	BDB::db_env_open	3985	BDB::db_env_open
2895	$DB_ENV,	3986	$DB_ENV,
…		…
2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3988	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2899	0666;	3990	0666;
2900		3991
2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2902
2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2904	$DB_ENV->set_lk_detect;
2905	};	3993	};
2906		3994
2907	cf::cleanup "db_env_open(db): $@" if $@;	3995	cf::cleanup "db_env_open(db): $@" if $@;
2908	};	3996	};
2909	}	3997	}
		3998
		3999	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4000	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4001	};
		4002	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4003	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4004	};
		4005	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4006	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4007	};
2910	}	4008	}
2911		4009
2912	{	4010	{
		4011	# configure IO::AIO
		4012
2913	IO::AIO::min_parallel 8;	4013	IO::AIO::min_parallel 8;
2914
2915	undef $Coro::AIO::WATCHER;
2916	IO::AIO::max_poll_time $TICK * 0.1;	4014	IO::AIO::max_poll_time $TICK * 0.1;
2917	$AIO_POLL_WATCHER = Event->io (	4015	undef $AnyEvent::AIO::WATCHER;
2918	reentrant => 0,	4016	}
2919	data => WF_AUTOCANCEL,	4017
2920	fd => IO::AIO::poll_fileno,	4018	my $_log_backtrace;
2921	poll => 'r',	4019
2922	prio => 6,	4020	sub _log_backtrace {
2923	cb => \&IO::AIO::poll_cb,	4021	my ($msg, @addr) = @_;
2924	);	4022
		4023	$msg =~ s/\n//;
		4024
		4025	# limit the # of concurrent backtraces
		4026	if ($_log_backtrace < 2) {
		4027	++$_log_backtrace;
		4028	my $perl_bt = Carp::longmess $msg;
		4029	async {
		4030	$Coro::current->{desc} = "abt $msg";
		4031
		4032	my @bt = fork_call {
		4033	@addr = map { sprintf "%x", $_ } @addr;
		4034	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4035	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4036	or die "addr2line: $!";
		4037
		4038	my @funcs;
		4039	my @res = <$fh>;
		4040	chomp for @res;
		4041	while (@res) {
		4042	my ($func, $line) = splice @res, 0, 2, ();
		4043	push @funcs, "[$func] $line";
		4044	}
		4045
		4046	@funcs
		4047	};
		4048
		4049	LOG llevInfo, "[ABT] $perl_bt\n";
		4050	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4051	LOG llevInfo, "[ABT] $_\n" for @bt;
		4052	--$_log_backtrace;
		4053	};
		4054	} else {
		4055	LOG llevInfo, "[ABT] $msg\n";
		4056	LOG llevInfo, "[ABT] [suppressed]\n";
		4057	}
2925	}	4058	}
2926		4059
2927	# load additional modules	4060	# load additional modules
2928	use cf::pod;	4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
2929		4063
2930	END { cf::emergency_save }	4064	END { cf::emergency_save }
2931		4065
2932	1	4066	1
2933		4067

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