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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.508 by root, Sun Mar 28 22:29:50 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-\x08\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} = $cb;
878	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
879		1313
880	cf::player->attach (	1314	cf::player->attach (
881	on_command => sub {	1315	on_command => sub {
882	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
883		1317
…		…
891	cf::override;	1325	cf::override;
892	},	1326	},
893	on_extcmd => sub {	1327	on_extcmd => sub {
894	my ($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};
1495		2039
1496	{	2040	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1498		2042
		2043	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2045
1501	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1502		2047
1503	$self->alloc;	2048	$self->alloc;
1504		2049
1505	$self->pre_load;	2050	$self->pre_load;
1506	Coro::cede;	2051	cf::cede_to_tick;
1507		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2055	$self->_load_objects ($f)
1509	or return;	2056	or return;
1510		2057
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1512	if delete $self->{load_original};	2059	if delete $self->{load_original};
1513		2060
1514	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2062	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2065	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1519	}	2069	}
1520	}	2070	}
1521		2071
1522	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1523	# now do the right thing for maps	2075	# now do the right thing for maps
1524	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2078	unless $self->difficulty;
1527	Coro::cede;	2079	cf::cede_to_tick;
1528		2080
1529	unless ($self->{deny_activate}) {	2081	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2082	$self->decay_objects;
1531	$self->fix_auto_apply;	2083	$self->fix_auto_apply;
1532	$self->update_buttons;	2084	$self->update_buttons;
1533	Coro::cede;	2085	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2086	$self->activate;
1537	}	2087	}
1538		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2093	}
1541		2094
1542	$self->post_load;	2095	$self->post_load;
1543	}	2096	}
1544		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
1545	sub customise_for {	2101	sub customise_for {
1546	my ($self, $ob) = @_;	2102	my ($self, $ob) = @_;
1547		2103
1548	return find "~" . $ob->name . "/" . $self->{path}	2104	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2105	if $self->per_player;
1550		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
1551	$self	2110	$self
1552	}	2111	}
1553		2112
1554	# find and load all maps in the 3x3 area around a map	2113	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2114	sub load_neighbours {
1556	my ($map) = @_;	2115	my ($map) = @_;
1557		2116
1558	my @diag; # diagonal neighbours	2117	my @neigh; # diagonal neighbours
1559		2118
1560	for (0 .. 3) {	2119	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2120	my $neigh = $map->tile_path ($_)
1562	or next;	2121	or next;
1563	$neigh = find $neigh, $map	2122	$neigh = find $neigh, $map
1564	or next;	2123	or next;
1565	$neigh->load;	2124	$neigh->load;
1566		2125
		2126	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2129	}
1570		2130
1571	for (@diag) {	2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2133	my $neigh = find $path, $origin
1573	or next;	2134	or next;
1574	$neigh->load;	2135	$neigh->load;
1575	}	2136	}
1576	}	2137	}
1577		2138
…		…
1582	}	2143	}
1583		2144
1584	sub do_load_sync {	2145	sub do_load_sync {
1585	my ($map) = @_;	2146	my ($map) = @_;
1586		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1587	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
1588	}	2152	}
1589		2153
1590	our %MAP_PREFETCH;	2154	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2155	our $MAP_PREFETCHER = undef;
1592		2156
1593	sub find_async {	2157	sub find_async {
1594	my ($path, $origin) = @_;	2158	my ($path, $origin, $load) = @_;
1595		2159
1596	$path = normalise $path, $origin && $origin->{path};	2160	$path = normalise $path, $origin && $origin->{path};
1597		2161
1598	if (my $map = $cf::MAP{$path}) {	2162	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2164	}
1601		2165
1602	undef $MAP_PREFETCH{$path};	2166	$MAP_PREFETCH{$path} |= $load;
		2167
1603	$MAP_PREFETCHER ||= cf::async {	2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
1604	while (%MAP_PREFETCH) {	2171	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2172	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2173	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2174	$map->load if $v;
		2175	}
1609		2176
1610	delete $MAP_PREFETCH{$path};	2177	delete $MAP_PREFETCH{$k};
1611	}	2178	}
1612	}	2179	}
1613	undef $MAP_PREFETCHER;	2180	undef $MAP_PREFETCHER;
1614	};	2181	};
1615	$MAP_PREFETCHER->prio (6);	2182	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2185	}
1619		2186
1620	sub save {	2187	sub save {
1621	my ($self) = @_;	2188	my ($self) = @_;
1622		2189
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2191
1625	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1626		2193
1627	return unless $self->dirty;	2194	return unless $self->dirty;
1628		2195
…		…
1634	return if $self->{deny_save};	2201	return if $self->{deny_save};
1635		2202
1636	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1637		2204
1638	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1640	};	2208	};
		2209
		2210	cf::get_slot 0.02;
1641		2211
1642	if ($uniq) {	2212	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2215	} else {
…		…
1651	my ($self) = @_;	2221	my ($self) = @_;
1652		2222
1653	# save first because save cedes	2223	# save first because save cedes
1654	$self->save;	2224	$self->save;
1655		2225
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2227
1658	return if $self->players;	2228	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2230	return if $self->{deny_save};
1661		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2236	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2237	}
1665		2238
1666	sub reset_at {	2239	sub reset_at {
1667	my ($self) = @_;	2240	my ($self) = @_;
1668		2241
1669	# TODO: safety, remove and allow resettable per-player maps	2242	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2243	return 1e99 if $self->{deny_reset};
1672		2244
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2247
…		…
1686	my ($self) = @_;	2258	my ($self) = @_;
1687		2259
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2261
1690	return if $self->players;	2262	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2263
1693	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
1694		2265
1695	$self->in_memory (cf::MAP_SWAPPED);	2266	$self->in_memory (cf::MAP_SWAPPED);
1696		2267
1697	# need to save uniques path	2268	# need to save uniques path
1698	unless ($self->{deny_save}) {	2269	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2273	if $uniq;
1703	}	2274	}
1704		2275
1705	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1706		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2280	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2281
1711	$self->unlink_save;	2282	$self->unlink_save;
1712	$self->destroy;	2283	$self->destroy;
1713	}	2284	}
1714		2285
1715	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1716		2287
1717	sub nuke {	2288	sub nuke {
1718	my ($self) = @_;	2289	my ($self) = @_;
1719		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
1720	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1721		2295
1722	$self->unlink_save;	2296	$self->unlink_save;
1723		2297
1724	bless $self, "cf::map";	2298	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2299	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2303
1730	$cf::MAP{$self->path} = $self;	2304	$cf::MAP{$self->path} = $self;
		2305	}
1731		2306
1732	$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	]
1733	}	2344	}
1734		2345
1735	=item cf::map::unique_maps	2346	=item cf::map::unique_maps
1736		2347
1737	Returns an arrayref of paths of all shared maps that have	2348	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2349	instantiated unique items. May block.
1739		2350
1740	=cut	2351	=cut
1741		2352
1742	sub unique_maps() {	2353	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2354	[
1744	or return;	2355	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2356	utf8::decode $_;
1750	next if /\.pst$/;	2357	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2359	? ()
1753	push @paths, cf::map::normalise $_;	2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2362	]
1755
1756	\@paths
1757	}	2363	}
1758		2364
1759	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	}
1760		2396
1761	=back	2397	=back
1762		2398
1763	=head3 cf::object	2399	=head3 cf::object
1764		2400
…		…
1768		2404
1769	=over 4	2405	=over 4
1770		2406
1771	=item $ob->inv_recursive	2407	=item $ob->inv_recursive
1772		2408
1773	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.
1774		2411
1775	=cut	2412	=cut
1776		2413
1777	sub inv_recursive_;	2414	sub inv_recursive_;
1778	sub inv_recursive_ {	2415	sub inv_recursive_ {
…		…
1781		2418
1782	sub inv_recursive {	2419	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2420	inv_recursive_ inv $_[0]
1784	}	2421	}
1785		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
1786	package cf;	2451	package cf;
1787		2452
1788	=back	2453	=back
1789		2454
1790	=head3 cf::object::player	2455	=head3 cf::object::player
…		…
1796	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>
1797	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
1798	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1799		2464
1800	=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	};
1801		2480
1802	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2482	# with dialog boxes.
1804	#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
1805	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1807		2486
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2488
1810	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1812	} 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 {
1813	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1815	}	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 (@_);
1816	}	2514	}
1817		2515
1818	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1819		2517
1820	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1833		2531
1834	=item $player_object->enter_link	2532	=item $player_object->enter_link
1835		2533
1836	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}>).
1837		2535
1838	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.
1839	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.
1840		2540
1841	Will never block.	2541	Will never block.
1842		2542
1843	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1844		2544
…		…
1862	}	2562	}
1863		2563
1864	sub cf::object::player::enter_link {	2564	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2565	my ($self) = @_;
1866		2566
		2567	$self->deactivate_recursive;
		2568
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2570
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1871		2573
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2575	}
1874		2576
1875	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1877		2581
1878	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1879		2583
1880	unless ($map) {	2584	unless ($map) {
1881	# restore original map position	2585	# restore original map position
…		…
1892	($x, $y) = (-1, -1)	2596	($x, $y) = (-1, -1)
1893	unless (defined $x) && (defined $y);	2597	unless (defined $x) && (defined $y);
1894		2598
1895	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2601	if $x <= 0 && $y <= 0;
1898		2602
1899	$map->load;	2603	$map->load;
1900	$map->load_diag;	2604	$map->load_neighbours;
1901		2605
1902	return unless $self->contr->active;	2606	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2607
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2609	$self->enter_map ($map, $x, $y);
1907	}
1908		2610
1909	cf::player->attach (	2611	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2612	$self->activate_recursive;
1911	my ($pl) = @_;	2613	}
1912		2614
1913	# abort map switching before logout	2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2616
1923	# try to abort aborted map switching on player login :)	2617	Moves the player to the given map-path and coordinates by first freezing
1924	# should happen only on crashes	2618	her, loading and preparing them map, calling the provided $check callback
1925	if ($pl->ob->{_link_pos}) {	2619	that has to return the map if sucecssful, and then unfreezes the player on
1926	$pl->ob->enter_link;	2620	the new (success) or old (failed) map position. In either case, $done will
1927	(async {	2621	be called at the end of this process.
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2622
1941	=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 >>.
1942		2625
1943	=cut	2626	=cut
		2627
		2628	our $GOTOGEN;
1944		2629
1945	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1946	my ($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;
1947		2635
1948	$self->enter_link;	2636	$self->enter_link;
1949		2637
1950	(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
1951	my $map = eval {	2660	my $map = eval {
1952	my $map = cf::map::find $path;	2661	my $map = defined $path ? cf::map::find $path : undef;
		2662
		2663	if ($map) {
1953	$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
1954	$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 $@;
1955	} or	2676	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
1959	})->prio (1);	2684	})->prio (1);
1960	}	2685	}
1961		2686
1962	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
1963		2688
…		…
1983	}	2708	}
1984		2709
1985	sub prepare_random_map {	2710	sub prepare_random_map {
1986	my ($exit) = @_;	2711	my ($exit) = @_;
1987		2712
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2713	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2714	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2715	# that depends on the exit object
1993		2716
1994	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2719	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2720	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
2001	}	2726	}
2002		2727
2003	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
2004		2729
2005	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2732	my $meta = "$RANDOMDIR/$md5.meta";
2008		2733
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2736	undef $fh;
2012	aio_rename "$meta~", $meta;	2737	aio_rename "$meta~", $meta;
2013		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
2016	}	2745	}
2017	}	2746	}
2018		2747
2019	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
2021		2750
2022	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
2023		2752
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	2753	$self->enter_link;
2036		2754
2037	(async {	2755	(async {
2038	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
2039	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
2040	$self->goto ($slaying, $hp, $sp);	2773	$self->goto ($map, $x, $y);
2041		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
2042	1;	2779	1
2043	}) {	2780	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "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. "
2046	. "Please report this to the dungeon master!",	2783	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2785
2049	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
…		…
2068		2805
2069	utf8::encode $text;	2806	utf8::encode $text;
2070	$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);
2071	}	2808	}
2072		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
2073	=item $client->ext_event ($type, %msg)	2997	=item $client->ext_msg ($type, @msg)
2074		2998
2075	Sends an exti event to the client.	2999	Sends an ext event to the client.
2076		3000
2077	=cut	3001	=cut
2078		3002
2079	sub cf::client::ext_event($$%) {	3003	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	3004	my ($self, $type, @msg) = @_;
2081		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	3009	push @msg, msgtype => "event_$type";
2083	$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	}
2084	}	3030	}
2085		3031
2086	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
2087		3033
2088	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
2089	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>,
2090	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>.
2091		3037
2092	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
2093	reliable at some point in the future.	3039	become reliable at some point in the future.
2094		3040
2095	=cut	3041	=cut
2096		3042
2097	sub cf::client::query {	3043	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3052	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3054
2109	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
2111	}	3059	}
2112		3060
2113	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	},
2114	on_reply => sub {	3067	on_reply => sub {
2115	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
2116		3069
2117	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
2118	# get handled first	3071	# get handled first
…		…
2130	} else {	3083	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3085	}
2133	}	3086	}
2134	},	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	},
2135	);	3114	);
2136		3115
2137	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
2138		3117
2139	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
2182		3161
2183	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
2184		3163
2185	$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	));
2186		3169
2187	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
2188		3171
2189	=pod	3172	=pod
2190		3173
2191	The following functions and methods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
2192		3175
2193	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
2194	cf::object::player player	3181	cf::object::player
2195	cf::player peaceful	3182	player
2196	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
2197		3189
2198	=cut	3190	=cut
2199		3191
2200	for (	3192	for (
2201	["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)],
2202	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
2205	) {	3199	) {
2206	no strict 'refs';	3200	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2226		3220
2227	my $qcode = $code;	3221	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
2230		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
2231	local $_;	3228	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;
2233		3229
2234	my $eval =	3230	my $eval =
2235	"do {\n"	3231	"do {\n"
2236	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2237	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
2238	. $code	3234	. $code
2239	. "\n}"	3235	. "\n}"
2240	;	3236	;
2241		3237
		3238	if ($CFG{safe_eval}) {
2242	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
2243	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2244	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	}
2245		3247
2246	if ($@) {	3248	if ($@) {
2247	warn "$@";	3249	warn "$@";
2248	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
2249	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2268	=cut	3270	=cut
2269		3271
2270	sub register_script_function {	3272	sub register_script_function {
2271	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
2272		3274
2273	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
2274	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
2275	}	3277	}
2276		3278
2277	=back	3279	=back
2278		3280
2279	=cut	3281	=cut
2280
2281	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453		3282
2454	#############################################################################	3283	#############################################################################
2455	# the server's init and main functions	3284	# the server's init and main functions
2456		3285
2457	sub load_facedata($) {	3286	sub load_facedata($) {
2458	my ($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;
2459		3294
2460	warn "loading facedata from $path\n";	3295	warn "loading facedata from $path\n";
2461		3296
2462	my $facedata;	3297	my $facedata;
2463	0 < aio_load $path, $facedata	3298	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3301	$facedata = Coro::Storable::thaw $facedata;
2467		3302
2468	$facedata->{version} == 2	3303	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		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
2471	{	3315	{
2472	my $faces = $facedata->{faceinfo};	3316	my $faces = $facedata->{faceinfo};
2473		3317
2474	while (my ($face, $info) = each %$faces) {	3318	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3320
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2479	Coro::cede;	3325
		3326	cf::cede_to_tick;
2480	}	3327	}
2481		3328
2482	while (my ($face, $info) = each %$faces) {	3329	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3330	next unless $info->{smooth};
		3331
2484	my $idx = cf::face::find $face	3332	my $idx = cf::face::find $face
2485	or next;	3333	or next;
		3334
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3338	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3340	}
2491	Coro::cede;	3341
		3342	cf::cede_to_tick;
2492	}	3343	}
2493	}	3344	}
2494		3345
2495	{	3346	{
2496	my $anims = $facedata->{animinfo};	3347	my $anims = $facedata->{animinfo};
2497		3348
2498	while (my ($anim, $info) = each %$anims) {	3349	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3351	cf::cede_to_tick;
2501	}	3352	}
2502		3353
2503	cf::anim::invalidate_all; # d'oh	3354	cf::anim::invalidate_all; # d'oh
2504	}	3355	}
2505		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
2506	1	3376	1
2507	}	3377	}
2508		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	$status
		3415	}
		3416
2509	sub reload_regions {	3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
2510	load_resource_file "$MAPDIR/regions"	3422	load_resource_file "$MAPDIR/regions"
2511	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 $_->{match};
		3428	}
2512	}	3429	}
2513		3430
2514	sub reload_facedata {	3431	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3432	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3433	or die "unable to load facedata\n";
…		…
2527	}	3444	}
2528		3445
2529	sub reload_resources {	3446	sub reload_resources {
2530	warn "reloading resource files...\n";	3447	warn "reloading resource files...\n";
2531		3448
2532	reload_regions;
2533	reload_facedata;	3449	reload_facedata;
2534	reload_archetypes;	3450	reload_archetypes;
		3451	reload_regions;
2535	reload_treasures;	3452	reload_treasures;
2536		3453
2537	warn "finished reloading resource files\n";	3454	warn "finished reloading resource files\n";
2538	}	3455	}
2539		3456
2540	sub init {	3457	sub reload_config {
2541	reload_resources;	3458	warn "reloading config file...\n";
2542	}
2543		3459
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3461	or return;
2547		3462
2548	local $/;	3463	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2550		3465
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2552		3467
2553	$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};
2554	$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};
…		…
2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2559	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2560	};	3475	};
2561	warn $@ if $@;	3476	warn $@ if $@;
2562	}	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;
2563	}	3508	}
2564		3509
2565	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
2566	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2568	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#
2569	(async {	3528	(async {
2570	Event::one_event;	3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3531	})->prio (Coro::PRIO_MAX);
2572	};	3532	};
2573		3533
2574	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;
2575	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
2576	load_extensions;	3553	load_extensions;
2577		3554
2578	$TICK_WATCHER->start;	3555	utime time, time, $RUNTIMEFILE;
2579	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;
2580	}	3565	}
2581		3566
2582	#############################################################################	3567	#############################################################################
2583	# initialisation and cleanup	3568	# initialisation and cleanup
2584		3569
2585	# install some emergency cleanup handlers	3570	# install some emergency cleanup handlers
2586	BEGIN {	3571	BEGIN {
		3572	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3573	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	3575	cf::cleanup "SIG$signal";
2595	},
2596	);	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
2597	}	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 };
2598	}	3666	}
2599		3667
2600	sub emergency_save() {	3668	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3669	my $freeze_guard = cf::freeze_mainloop;
2602		3670
2603	warn "enter emergency perl save\n";	3671	warn "emergency_perl_save: enter\n";
2604		3672
2605	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
2606	# use a peculiar iteration method to avoid tripping on perl	3679	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3680	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3681	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3682	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3683	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3684	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3687	$pl->save;
2614	}	3688	}
2615	warn "end emergency player save\n";	3689	warn "emergency_perl_save: end player save\n";
2616		3690
2617	warn "begin emergency map save\n";	3691	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3692	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3693	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3694	$map->valid or next;
2621	$map->save;	3695	$map->save;
2622	}	3696	}
2623	warn "end emergency map save\n";	3697	warn "emergency_perl_save: end map save\n";
2624		3698
2625	warn "begin emergency database checkpoint\n";	3699	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3700	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
2628	};	3706	};
2629		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
2630	warn "leave emergency perl save\n";	3713	warn "emergency_perl_save: leave\n";
2631	}	3714	}
2632		3715
2633	sub post_cleanup {	3716	sub post_cleanup {
2634	my ($make_core) = @_;	3717	my ($make_core) = @_;
2635		3718
2636	warn Carp::longmess "post_cleanup backtrace"	3719	warn Carp::longmess "post_cleanup backtrace"
2637	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#
2638	}	3750	}
2639		3751
2640	sub do_reload_perl() {	3752	sub do_reload_perl() {
2641	# can/must only be called in main	3753	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3754	if ($Coro::current != $Coro::main) {
2643	warn "can only reload from main coroutine";	3755	warn "can only reload from main coroutine";
2644	return;	3756	return;
2645	}	3757	}
2646		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
2647	warn "reloading...";	3764	warn "reloading...";
2648		3765
2649	warn "entering sync_job";	3766	warn "entering sync_job";
2650		3767
2651	cf::sync_job {	3768	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3769	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3770	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3771	cf::write_runtime_sync; # external watchdog should not bark
2655		3772
2656	warn "syncing database to disk";	3773	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3774	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3775
2659	# 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
2660		3777
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";	3778	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;	3779	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();
2680
2681	warn "removing commands";
2682	%COMMAND = ();
2683
2684	warn "removing ext commands";
2685	%EXTCMD = ();
2686
2687	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";
2690
2691	if (my $cb = $pkg->can ("unload")) {
2692	eval {
2693	$cb->($pkg);
2694	1
2695	} or warn "$pkg unloaded, but with errors: $@";
2696	}	3781	}
2697		3782
2698	warn "... nuking $pkg";	3783	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3784	$_->cancel for values %EXT_CORO;
2700	}	3785	%EXT_CORO = ();
2701		3786
2702	warn "unloading all perl modules loaded from $LIBDIR";	3787	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3788	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3796	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3797
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
2713	$cb->();	3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
2714	}	3807	}
2715		3808
2716	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;
2717	}	3824	}
2718		3825
2719	warn "getting rid of safe::, as good as possible";	3826	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3827	clear_package "safe::$_"
2721	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);
2722		3829
2723	warn "unloading cf.pm \"a bit\"";	3830	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3831	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3833
2727	# don't, removes xs symbols, too,	3834	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3835	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3836	#clear_package __PACKAGE__;
2730		3837
2731	warn "unload completed, starting to reload now";	3838	warn "unload completed, starting to reload now";
2732		3839
2733	warn "reloading cf.pm";	3840	warn "reloading cf.pm";
2734	require cf;	3841	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3842	cf::_connect_to_perl_1;
2736		3843
2737	warn "loading config and database again";	3844	warn "loading config and database again";
2738	cf::cfg_load;	3845	cf::reload_config;
2739		3846
2740	warn "loading extensions";	3847	warn "loading extensions";
2741	cf::load_extensions;	3848	cf::load_extensions;
2742		3849
		3850	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3851	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3852	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3853	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3854	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3855	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3856	reattach $_ for values %PLAYER;
		3857	}
2749		3858
		3859	warn "running post_init jobs";
		3860	(pop @POST_INIT)->(1) while @POST_INIT;
		3861
2750	warn "leaving sync_job";	3862	warn "leaving sync_job";
2751		3863
2752	1	3864	1
2753	} or do {	3865	} or do {
2754	warn $@;	3866	warn $@;
2755	warn "error while reloading, exiting.";	3867	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3868	};
2758		3869
2759	warn "reloaded";	3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
2760	};	3876	};
2761		3877
2762	our $RELOAD_WATCHER; # used only during reload	3878	our $RELOAD_WATCHER; # used only during reload
2763		3879
2764	sub reload_perl() {	3880	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3881	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3882	# coro crashes during coro_state_free->destroy here.
2767		3883
2768	$RELOAD_WATCHER ||= Event->timer (	3884	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3885	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3886
2771	data => WF_AUTOCANCEL,	3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3888	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3889	undef $RELOAD_WATCHER;
2775	},	3890	};
2776	);	3891	};
2777	}	3892	}
2778		3893
2779	register_command "reload" => sub {	3894	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3895	my ($who, $arg) = @_;
2781		3896
2782	if ($who->flag (FLAG_WIZ)) {	3897	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3898	$who->message ("reloading server.");
		3899	async {
		3900	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3901	reload_perl;
		3902	};
2785	}	3903	}
2786	};	3904	};
2787		3905
2788	unshift @INC, $LIBDIR;	3906	unshift @INC, $LIBDIR;
2789		3907
…		…
2791		3909
2792	our @WAIT_FOR_TICK;	3910	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3911	our @WAIT_FOR_TICK_BEGIN;
2794		3912
2795	sub wait_for_tick {	3913	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2798		3915
2799	my $signal = new Coro::Signal;	3916	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3917	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3918	$signal->wait;
2802	}	3919	}
2803		3920
2804	sub wait_for_tick_begin {	3921	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2807		3923
2808	my $signal = new Coro::Signal;	3924	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3925	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3926	$signal->wait;
2811	}	3927	}
2812		3928
2813	$TICK_WATCHER = Event->timer (	3929	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	3930	if ($Coro::current != $Coro::main) {
2821	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"
2822	unless ++$bug_warning > 10;	3932	unless ++$bug_warning > 10;
2823	return;	3933	return;
2824	}	3934	}
2825		3935
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	3936	cf::server_tick; # one server iteration
2829		3937
2830	$RUNTIME += $TICK;	3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2831	$NEXT_TICK += $TICK;
2832		3939
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	3942	Coro::async_pool {
		3943	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	3944	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	3945	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	3946	};
		3947	}
2840		3948
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	3950	$sig->send;
2852	}	3951	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	3952	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	3953	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	3954	}
2859	);	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	}
2860		3967
2861	{	3968	{
2862	BDB::max_poll_time $TICK * 0.1;	3969	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	3970
2864	reentrant => 0,
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	3971	BDB::min_parallel 16;
2872		3972	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	3973	$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		3974
2888	unless ($DB_ENV) {	3975	unless ($DB_ENV) {
2889	$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);
2890		3982
2891	cf::sync_job {	3983	cf::sync_job {
2892	eval {	3984	eval {
2893	BDB::db_env_open	3985	BDB::db_env_open
2894	$DB_ENV,	3986	$DB_ENV,
…		…
2896	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
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	3990	0666;
2899		3991
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	3993	};
2905		3994
2906	cf::cleanup "db_env_open(db): $@" if $@;	3995	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	3996	};
2908	}	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	};
2909	}	4008	}
2910		4009
2911	{	4010	{
		4011	# configure IO::AIO
		4012
2912	IO::AIO::min_parallel 8;	4013	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	4014	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	4015	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	4016	}
2918	data => WF_AUTOCANCEL,	4017
2919	fd => IO::AIO::poll_fileno,	4018	my $_log_backtrace;
2920	poll => 'r',	4019
2921	prio => 6,	4020	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	4021	my ($msg, @addr) = @_;
2923	);	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] $msg\n";
		4056	LOG llevInfo, "[ABT] [suppressed]\n";
		4057	}
2924	}	4058	}
2925		4059
2926	# load additional modules	4060	# load additional modules
2927	use cf::pod;	4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
2928		4063
2929	END { cf::emergency_save }	4064	END { cf::emergency_save }
2930		4065
2931	1	4066	1
2932		4067

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