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

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use 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 ();
14		37
		38	use Guard ();
15	use Coro 3.61 ();	39	use Coro ();
16	use Coro::State;	40	use Coro::State;
17	use Coro::Handle;	41	use Coro::Handle;
		42	use Coro::EV;
18	use Coro::Event;	43	use Coro::AnyEvent;
19	use Coro::Timer;	44	use Coro::Timer;
20	use Coro::Signal;	45	use Coro::Signal;
21	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
22	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
23	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
24		53
		54	use JSON::XS 2.01 ();
25	use BDB ();	55	use BDB ();
26	use Data::Dumper;	56	use Data::Dumper;
27	use Digest::MD5;	57	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	warn "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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
291	};	456	}
292	$TICK_WATCHER->stop;	457	};
293	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
294	}	471	}
295		472
296	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
297		474
298	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		480
304	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
305		482
306	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
307		484
308	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
311		489
312	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
315	fast or be very important.	493	fast or be very important.
…		…
318		496
319	sub sync_job(&) {	497	sub sync_job(&) {
320	my ($job) = @_;	498	my ($job) = @_;
321		499
322	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
323	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
325		505
326	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	507
328	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
329		509
330	my $busy = 1;	510	my $busy = 1;
331	my @res;	511	my @res;
332		512
333	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	515	@res = eval { $job->() };
335	warn $@ if $@;	516	warn $@ if $@;
336	undef $busy;	517	undef $busy;
337	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
338		519
339	while ($busy) {	520	while ($busy) {
340	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
341	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
342		531
343	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
344	} else {	533	} else {
345	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
346		535
…		…
366	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
367		556
368	$coro	557	$coro
369	}	558	}
370		559
371	sub write_runtime {	560	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		561
374	my $runtime = "$LOCALDIR/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
375		566
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
377	or return;
378		568
379	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		571
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
384	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
385		575
386	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	577	reset_signals;
388	and return;	578	&$cb
		579	}, @args;
389		580
390	close $fh	581	wantarray ? @res : $res[-1]
391	or return;	582	}
392		583
393	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
394	and return;
395		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
396	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
397	}	736	}
398		737
399	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
400		739
401	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		752
414	#############################################################################	753	#############################################################################
415		754
416	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
417		756
418	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
421		760
422	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	763	Deliantra).
425		764
426	=over 4	765	=over 4
427		766
428	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
429		768
…		…
473	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
474		813
475	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
477		816
478	Some classes such as crossfire maps and objects can specify attachments	817	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.	818	that are attached at load/instantiate time, thus the need for a name.
480		819
481	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
482		821
483	=over 4	822	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
593		932
594	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		937
599	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	939	my $pkg = shift @arg;
601		940
602	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
632	}	971	}
633		972
634	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
635	} else {	974	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	976	}
638		977
639	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
640	}	979	}
641		980
…		…
643	if (ref $_[0]) {	982	if (ref $_[0]) {
644	_object_attach @_;	983	_object_attach @_;
645	} else {	984	} else {
646	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
647	}	986	}
		987	_recalc_want;
648	};	988	};
649		989
650	# all those should be optimised	990	# all those should be optimised
651	sub cf::attachable::detach {	991	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
656	reattach ($obj);	996	reattach ($obj);
657	} else {	997	} else {
658	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
659	}	999	}
		1000	_recalc_want;
660	};	1001	};
661		1002
662	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
664		1005
…		…
679	";	1020	";
680	die if $@;	1021	die if $@;
681	}	1022	}
682		1023
683	our $override;	1024	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1026
686	sub override {	1027	sub override {
687	$override = 1;	1028	$override = 1;
688	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
689	}	1030	}
690		1031
691	sub do_invoke {	1032	sub do_invoke {
692	my $event = shift;	1033	my $event = shift;
693	my $callbacks = shift;	1034	my $callbacks = shift;
694		1035
695	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
696		1037
697	local $override;	1038	local $override;
698		1039
699	for (@$callbacks) {	1040	for (@$callbacks) {
700	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
709	}	1050	}
710		1051
711	0	1052	0
712	}	1053	}
713		1054
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1056
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1058
718	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
719		1060
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1064
724	=back	1065	=back
725		1066
726	=cut	1067	=cut
727		1068
728	#############################################################################	1069	#############################################################################
729	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
730		1113
731	sub reattach {	1114	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1116	my ($obj) = @_;
734		1117
		1118	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1120
737	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
738		1122
739	@$registry = ();	1123	@$registry = ();
740		1124
…		…
755	cf::attachable->attach (	1139	cf::attachable->attach (
756	prio => -1000000,	1140	prio => -1000000,
757	on_instantiate => sub {	1141	on_instantiate => sub {
758	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
759		1143
760	$data = from_json $data;	1144	$data = decode_json $data;
761		1145
762	for (@$data) {	1146	for (@$data) {
763	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
764		1148
765	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1165	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
783		1167
784	sync_job {	1168	sync_job {
785	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
788		1173
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
793	close $fh;	1181	aio_close $fh;
794		1182
795	if (@$objs) {	1183	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
801	close $fh;	1192	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
803	}	1194	}
804	} else {	1195	} else {
805	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
806	}	1197	}
807		1198
808	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1203	} else {
810	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
811	}	1205	}
812	} else {	1206	} else {
813	aio_unlink $filename;	1207	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
815	}	1209	}
816	}	1210	};
817	}	1211	}
818		1212
819	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
821		1215
…		…
833	or return;	1227	or return;
834		1228
835	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
837	or return;	1231	or return;
		1232
838	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
839	}	1235	}
840		1236
		1237	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
843	return ($data, $av);	1241	($data, $av)
844	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
845		1249
846	#############################################################################	1250	#############################################################################
847	# command handling &c	1251	# command handling &c
848		1252
849	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1267	}
864		1268
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1270
867	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
868		1276
869	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
870	called.	1278	called.
871		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
872	=cut	1291	=cut
873		1292
874	sub register_extcmd {	1293	sub register_extcmd {
875	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
876		1295
877	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
878	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
879		1306
880	cf::player->attach (	1307	cf::player->attach (
881	on_command => sub {	1308	on_command => sub {
882	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
883		1310
…		…
891	cf::override;	1318	cf::override;
892	},	1319	},
893	on_extcmd => sub {	1320	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
895		1322
896	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1324
898	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
904	} else {	1340	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1342	}
907		1343
908	cf::override;	1344	cf::override;
909	},	1345	},
910	);	1346	);
911		1347
		1348	# "readahead" all extensions
912	sub load_extension {	1349	sub cache_extensions {
913	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
914		1351
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1354	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	}	1355	}
940	die $@;
941	}	1356	};
942		1357
943	push @EXTS, $pkg;	1358	$grp
944	}	1359	}
945		1360
946	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
947	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1366	next unless -r $path;
949	eval {	1367
950	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
951	1	1424	}
952	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
953	}	1430	};
954	}	1431	}
955		1432
956	#############################################################################	1433	#############################################################################
957		1434
		1435	=back
		1436
958	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
959		1438
960	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
961		1440
962	=cut	1441	=cut
963		1442
964	package cf::player;	1443	package cf::player;
965		1444
966	use Coro::AIO;	1445	use Coro::AIO;
967		1446
968	=head3 cf::player	1447	=head3 cf::player
969		1448
970	=over 4	1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
971		1464
972	=item cf::player::find $login	1465	=item cf::player::find $login
973		1466
974	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
975		1468
…		…
994		1487
995	sub exists($) {	1488	sub exists($) {
996	my ($login) = @_;	1489	my ($login) = @_;
997		1490
998	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1000	}	1493	}
1001		1494
1002	sub find($) {	1495	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1497	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1508
1016	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1019	}	1518	}
1020	}	1519	}
1021	}	1520	}
1022		1521
…		…
1031	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1032		1531
1033	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1035		1534
		1535	cf::get_slot 0.01;
		1536
1036	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1037	Coro::cede;	1538	cf::cede_to_tick;
1038	}	1539	}
1039		1540
1040	sub new($) {	1541	sub new($) {
1041	my ($login) = @_;	1542	my ($login) = @_;
1042		1543
…		…
1048	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1049		1550
1050	$self	1551	$self
1051	}	1552	}
1052		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1053	=item $pl->quit_character	1564	=item $pl->quit_character
1054		1565
1055	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1057		1568
…		…
1061	my ($pl) = @_;	1572	my ($pl) = @_;
1062		1573
1063	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1064		1575
1065	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1578
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1072		1585
1073	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1623	or return [];
1111		1624
1112	my @logins;	1625	my @logins;
1113		1626
1114	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1118		1637
1119	utf8::decode $login;	1638	utf8::decode $login;
1120	push @logins, $login;	1639	push @logins, $login;
1121	}	1640	}
1122		1641
…		…
1149	}	1668	}
1150		1669
1151	\@paths	1670	\@paths
1152	}	1671	}
1153		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1154	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1155		1678
1156	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1157		1680
1158	=cut	1681	=cut
1159		1682
1160	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1162		1685
1163	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1687	}
1167		1688
1168	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1169		1690
1170	Sends an ext event to the client.	1691	Sends an ext event to the client.
1171		1692
1172	=cut	1693	=cut
1173		1694
1174	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1176		1697
1177	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1178	}	1699	}
1179		1700
1180	=head3 cf::region	1701	=head3 cf::region
1181		1702
1182	=over 4	1703	=over 4
…		…
1185		1706
1186	package cf::region;	1707	package cf::region;
1187		1708
1188	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1189		1710
1190	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1191		1712
1192	=cut	1713	=cut
1193		1714
1194	sub find_by_path($) {	1715	sub find_by_path($) {
1195	my ($path) = @_;	1716	my ($path) = @_;
1196		1717
1197	my ($match, $specificity);	1718	my ($match, $specificity);
1198		1719
1199	for my $region (list) {	1720	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1203	}	1724	}
1204	}	1725	}
1205		1726
…		…
1226	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1228		1749
1229	sub generate_random_map {	1750	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1231	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1756	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1270		1794
1271	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1272	local $self->{path};	1796	local $self->{path};
1273	local $self->{load_path};	1797	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1798
1277	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1278	}	1800	}
1279		1801
1280	sub normalise {	1802	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1328	return $self;	1850	return $self;
1329	}	1851	}
1330	}	1852	}
1331		1853
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1855	()
1334	}	1856	}
1335		1857
1336	sub init {	1858	sub init {
1337	my ($self) = @_;	1859	my ($self) = @_;
…		…
1359		1881
1360	# the temporary/swap location	1882	# the temporary/swap location
1361	sub save_path {	1883	sub save_path {
1362	my ($self) = @_;	1884	my ($self) = @_;
1363		1885
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1366	}	1888	}
1367		1889
1368	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1369	sub uniq_path {	1891	sub uniq_path {
1370	my ($self) = @_;	1892	my ($self) = @_;
1371		1893
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1374	}	1896	}
1375		1897
1376	# and all this just because we cannot iterate over	1898	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1899	my ($self) = @_;
1380		1900
1381	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1383	}	1904	}
1384		1905
1385	sub unlink_save {	1906	sub unlink_save {
1386	my ($self) = @_;	1907	my ($self) = @_;
1387		1908
…		…
1392		1913
1393	sub load_header_from($) {	1914	sub load_header_from($) {
1394	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1395		1916
1396	utf8::encode $path;	1917	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1402		1926
1403	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1404		1928
1405	1	1929	1
1406	}	1930	}
…		…
1445	$self->load_header_orig	1969	$self->load_header_orig
1446	or return;	1970	or return;
1447	$self->prepare_orig;	1971	$self->prepare_orig;
1448	}	1972	}
1449		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1450	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1978	unless $self->default_region;
1452		1979
1453	1	1980	1
1454	}	1981	}
…		…
1457	sub find {	1984	sub find {
1458	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1459		1986
1460	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1461		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1991
1464	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1467	or return;	1994	or return;
1468		1995
1469	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1470		1997
1471	$map->load_header	1998	$map->load_header
1472	or return;	1999	or return;
1473		2000
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1477	$map->reset;	2006	$map->reset;
1478	undef $guard;
1479	return find $path;	2007	return find $path;
1480	}	2008	}
1481		2009
1482	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1483	}	2011	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1493		2021
1494	my $path = $self->{path};	2022	my $path = $self->{path};
1495		2023
1496	{	2024	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1498		2026
		2027	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2029
1501	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1502		2031
1503	$self->alloc;	2032	$self->alloc;
1504		2033
1505	$self->pre_load;	2034	$self->pre_load;
1506	Coro::cede;	2035	cf::cede_to_tick;
1507		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1509	or return;	2040	or return;
1510		2041
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1512	if delete $self->{load_original};	2043	if delete $self->{load_original};
1513		2044
1514	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2046	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2049	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1519	}	2053	}
1520	}	2054	}
1521		2055
1522	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1523	# now do the right thing for maps	2059	# now do the right thing for maps
1524	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2062	unless $self->difficulty;
1527	Coro::cede;	2063	cf::cede_to_tick;
1528		2064
1529	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2066	$self->decay_objects;
1531	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1532	$self->update_buttons;	2068	$self->update_buttons;
1533	Coro::cede;	2069	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2070	$self->activate;
1537	}	2071	}
1538		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2077	}
1541		2078
1542	$self->post_load;	2079	$self->post_load;
1543	}	2080	}
1544		2081
…		…
1546	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1547		2084
1548	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2086	if $self->per_player;
1550		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1551	$self	2091	$self
1552	}	2092	}
1553		2093
1554	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2095	sub load_neighbours {
1556	my ($map) = @_;	2096	my ($map) = @_;
1557		2097
1558	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1559		2099
1560	for (0 .. 3) {	2100	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1562	or next;	2102	or next;
1563	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1564	or next;	2104	or next;
1565	$neigh->load;	2105	$neigh->load;
1566		2106
		2107	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2110	}
1570		2111
1571	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1573	or next;	2115	or next;
1574	$neigh->load;	2116	$neigh->load;
1575	}	2117	}
1576	}	2118	}
1577		2119
…		…
1582	}	2124	}
1583		2125
1584	sub do_load_sync {	2126	sub do_load_sync {
1585	my ($map) = @_;	2127	my ($map) = @_;
1586		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1587	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1588	}	2133	}
1589		2134
1590	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1592		2137
1593	sub find_async {	2138	sub find_async {
1594	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1595		2140
1596	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1597		2142
1598	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2145	}
1601		2146
1602	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1603	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1604	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2154	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2155	$map->load if $v;
		2156	}
1609		2157
1610	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1611	}	2159	}
1612	}	2160	}
1613	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1614	};	2162	};
1615	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2166	}
1619		2167
1620	sub save {	2168	sub save {
1621	my ($self) = @_;	2169	my ($self) = @_;
1622		2170
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2172
1625	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1626		2174
1627	return unless $self->dirty;	2175	return unless $self->dirty;
1628		2176
…		…
1634	return if $self->{deny_save};	2182	return if $self->{deny_save};
1635		2183
1636	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1637		2185
1638	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1640	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1641		2192
1642	if ($uniq) {	2193	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2196	} else {
…		…
1651	my ($self) = @_;	2202	my ($self) = @_;
1652		2203
1653	# save first because save cedes	2204	# save first because save cedes
1654	$self->save;	2205	$self->save;
1655		2206
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2208
1658	return if $self->players;	2209	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2211	return if $self->{deny_save};
1661		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2217	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2218	}
1665		2219
1666	sub reset_at {	2220	sub reset_at {
1667	my ($self) = @_;	2221	my ($self) = @_;
1668		2222
1669	# TODO: safety, remove and allow resettable per-player maps	2223	# 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};	2224	return 1e99 if $self->{deny_reset};
1672		2225
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2228
…		…
1686	my ($self) = @_;	2239	my ($self) = @_;
1687		2240
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2242
1690	return if $self->players;	2243	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2244
1693	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1694		2246
1695	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1696		2248
1697	# need to save uniques path	2249	# need to save uniques path
1698	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2254	if $uniq;
1703	}	2255	}
1704		2256
1705	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1706		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2261	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2262
1711	$self->unlink_save;	2263	$self->unlink_save;
1712	$self->destroy;	2264	$self->destroy;
1713	}	2265	}
1714		2266
1715	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1716		2268
1717	sub nuke {	2269	sub nuke {
1718	my ($self) = @_;	2270	my ($self) = @_;
1719		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1720	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1721		2276
1722	$self->unlink_save;	2277	$self->unlink_save;
1723		2278
1724	bless $self, "cf::map";	2279	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2284
1730	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1731		2287
1732	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1733	}	2325	}
1734		2326
1735	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1736		2328
1737	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2330	instantiated unique items. May block.
1739		2331
1740	=cut	2332	=cut
1741		2333
1742	sub unique_maps() {	2334	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2335	[
1744	or return;	2336	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2337	utf8::decode $_;
1750	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2340	? ()
1753	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2343	]
1755
1756	\@paths
1757	}	2344	}
1758		2345
1759	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles>). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	next if $dir eq "/styles";
		2361
		2362	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2363	or return;
		2364
		2365	for (@$files) {
		2366	s/\.map$// or next;
		2367	utf8::decode $_;
		2368	push @maps, "$dir/$_";
		2369	}
		2370
		2371	push @dirs, map "$dir/$_", @$dirs;
		2372	}
		2373
		2374	\@maps
		2375	}
1760		2376
1761	=back	2377	=back
1762		2378
1763	=head3 cf::object	2379	=head3 cf::object
1764		2380
…		…
1768		2384
1769	=over 4	2385	=over 4
1770		2386
1771	=item $ob->inv_recursive	2387	=item $ob->inv_recursive
1772		2388
1773	Returns the inventory of the object _and_ their inventories, recursively.	2389	Returns the inventory of the object I<and> their inventories, recursively,
		2390	but I<not> the object itself.
1774		2391
1775	=cut	2392	=cut
1776		2393
1777	sub inv_recursive_;	2394	sub inv_recursive_;
1778	sub inv_recursive_ {	2395	sub inv_recursive_ {
…		…
1781		2398
1782	sub inv_recursive {	2399	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2400	inv_recursive_ inv $_[0]
1784	}	2401	}
1785		2402
		2403	=item $ref = $ob->ref
		2404
		2405	Creates and returns a persistent reference to an object that can be stored as a string.
		2406
		2407	=item $ob = cf::object::deref ($refstring)
		2408
		2409	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2410	even if the object actually exists. May block.
		2411
		2412	=cut
		2413
		2414	sub deref {
		2415	my ($ref) = @_;
		2416
		2417	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2418	my ($uuid, $name) = ($1, $2);
		2419	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2420	or return;
		2421	$pl->ob->uuid eq $uuid
		2422	or return;
		2423
		2424	$pl->ob
		2425	} else {
		2426	warn "$ref: cannot resolve object reference\n";
		2427	undef
		2428	}
		2429	}
		2430
1786	package cf;	2431	package cf;
1787		2432
1788	=back	2433	=back
1789		2434
1790	=head3 cf::object::player	2435	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2441	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2442	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1799		2444
1800	=cut	2445	=cut
		2446
		2447	our $SAY_CHANNEL = {
		2448	id => "say",
		2449	title => "Map",
		2450	reply => "say ",
		2451	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2452	};
		2453
		2454	our $CHAT_CHANNEL = {
		2455	id => "chat",
		2456	title => "Chat",
		2457	reply => "chat ",
		2458	tooltip => "Player chat and shouts, global to the server.",
		2459	};
1801		2460
1802	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2462	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2463	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1807		2466
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2468
1810	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1812	} else {	2472	} else {
		2473	my $pl = $self->contr;
		2474
		2475	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2476	my $dialog = $pl->{npc_dialog};
		2477	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2478
		2479	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1815	}	2483	}
		2484	}
		2485
		2486	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2487
		2488	=cut
		2489
		2490	sub cf::object::send_msg {
		2491	my $pl = shift->contr
		2492	or return;
		2493	$pl->send_msg (@_);
1816	}	2494	}
1817		2495
1818	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1819		2497
1820	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1833		2511
1834	=item $player_object->enter_link	2512	=item $player_object->enter_link
1835		2513
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2514	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2515
1838	The player should be reasonably safe there for short amounts of time. You	2516	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2517	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2518	though, as the palyer cannot control the character while it is on the link
		2519	map.
1840		2520
1841	Will never block.	2521	Will never block.
1842		2522
1843	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1844		2524
…		…
1862	}	2542	}
1863		2543
1864	sub cf::object::player::enter_link {	2544	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2545	my ($self) = @_;
1866		2546
		2547	$self->deactivate_recursive;
		2548
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2550
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1871		2553
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2555	}
1874		2556
1875	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1877		2561
1878	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1879		2563
1880	unless ($map) {	2564	unless ($map) {
1881	# restore original map position	2565	# restore original map position
…		…
1895	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1898		2582
1899	$map->load;	2583	$map->load;
1900	$map->load_diag;	2584	$map->load_neighbours;
1901		2585
1902	return unless $self->contr->active;	2586	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2587
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1907	}
1908		2590
1909	cf::player->attach (	2591	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2592	$self->activate_recursive;
1911	my ($pl) = @_;	2593	}
1912		2594
1913	# abort map switching before logout	2595	=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		2596
1923	# try to abort aborted map switching on player login :)	2597	Moves the player to the given map-path and coordinates by first freezing
1924	# should happen only on crashes	2598	her, loading and preparing them map, calling the provided $check callback
1925	if ($pl->ob->{_link_pos}) {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1926	$pl->ob->enter_link;	2600	the new (success) or old (failed) map position. In either case, $done will
1927	(async {	2601	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		2602
1941	=item $player_object->goto ($path, $x, $y)	2603	Note that $check will be called with a potentially non-loaded map, so if
		2604	it needs a loaded map it has to call C<< ->load >>.
1942		2605
1943	=cut	2606	=cut
		2607
		2608	our $GOTOGEN;
1944		2609
1945	sub cf::object::player::goto {	2610	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2611	my ($self, $path, $x, $y, $check, $done) = @_;
		2612
		2613	# do generation counting so two concurrent goto's will be executed in-order
		2614	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1947		2615
1948	$self->enter_link;	2616	$self->enter_link;
1949		2617
1950	(async {	2618	(async {
		2619	$Coro::current->{desc} = "player::goto $path $x $y";
		2620
		2621	# *tag paths override both path and x|y
		2622	if ($path =~ /^\*(.*)$/) {
		2623	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2624	my $ob = $obs[rand @obs];
		2625
		2626	# see if we actually can go there
		2627	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2628	$ob = $obs[rand @obs];
		2629	} else {
		2630	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632	# else put us there anyways for now #d#
		2633
		2634	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2635	} else {
		2636	($path, $x, $y) = (undef, undef, undef);
		2637	}
		2638	}
		2639
1951	my $map = eval {	2640	my $map = eval {
1952	my $map = cf::map::find $path;	2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2644	$map = $map->customise_for ($self);
		2645	$map = $check->($map) if $check && $map;
		2646	} else {
		2647	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649
1954	$map	2650	$map
		2651	};
		2652
		2653	if ($@) {
		2654	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2655	LOG llevError | logBacktrace, Carp::longmess $@;
1955	} or	2656	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1959	})->prio (1);	2664	})->prio (1);
1960	}	2665	}
1961		2666
1962	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1963		2668
…		…
1983	}	2688	}
1984		2689
1985	sub prepare_random_map {	2690	sub prepare_random_map {
1986	my ($exit) = @_;	2691	my ($exit) = @_;
1987		2692
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2693	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2694	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2695	# that depends on the exit object
1993		2696
1994	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2699	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2700	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
2001	}	2706	}
2002		2707
2003	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
2004		2709
2005	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2712	my $meta = "$RANDOMDIR/$md5.meta";
2008		2713
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2716	undef $fh;
2012	aio_rename "$meta~", $meta;	2717	aio_rename "$meta~", $meta;
2013		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
2016	}	2725	}
2017	}	2726	}
2018		2727
2019	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
2021		2730
2022	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
2023		2732
2024	if ($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;	2733	$self->enter_link;
2036		2734
2037	(async {	2735	(async {
2038	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
2039	unless (eval {	2738	unless (eval {
		2739	$self->deactivate_recursive; # just to be sure
		2740
		2741	# random map handling
		2742	{
		2743	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2744
		2745	prepare_random_map $exit
		2746	if $exit->slaying eq "/!";
		2747	}
		2748
		2749	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2750	my $x = $exit->stats->hp;
		2751	my $y = $exit->stats->sp;
		2752
2040	$self->goto ($slaying, $hp, $sp);	2753	$self->goto ($map, $x, $y);
2041		2754
		2755	# if exit is damned, update players death & WoR home-position
		2756	$self->contr->savebed ($map, $x, $y)
		2757	if $exit->flag (cf::FLAG_DAMNED);
		2758
2042	1;	2759	1
2043	}) {	2760	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "I'll try to bring you back to the map you were before. "	2762	. "I'll try to bring you back to the map you were before. "
2046	. "Please report this to the dungeon master!",	2763	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2765
2049	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
…		…
2068		2785
2069	utf8::encode $text;	2786	utf8::encode $text;
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2071	}	2788	}
2072		2789
		2790	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2791
		2792	Send a drawinfo or msg packet to the client, formatting the msg for the
		2793	client if neccessary. C<$type> should be a string identifying the type of
		2794	the message, with C<log> being the default. If C<$color> is negative, suppress
		2795	the message unless the client supports the msg packet.
		2796
		2797	=cut
		2798
		2799	# non-persistent channels (usually the info channel)
		2800	our %CHANNEL = (
		2801	"c/motd" => {
		2802	id => "infobox",
		2803	title => "MOTD",
		2804	reply => undef,
		2805	tooltip => "The message of the day",
		2806	},
		2807	"c/identify" => {
		2808	id => "infobox",
		2809	title => "Identify",
		2810	reply => undef,
		2811	tooltip => "Items recently identified",
		2812	},
		2813	"c/examine" => {
		2814	id => "infobox",
		2815	title => "Examine",
		2816	reply => undef,
		2817	tooltip => "Signs and other items you examined",
		2818	},
		2819	"c/shopinfo" => {
		2820	id => "infobox",
		2821	title => "Shop Info",
		2822	reply => undef,
		2823	tooltip => "What your bargaining skill tells you about the shop",
		2824	},
		2825	"c/book" => {
		2826	id => "infobox",
		2827	title => "Book",
		2828	reply => undef,
		2829	tooltip => "The contents of a note or book",
		2830	},
		2831	"c/lookat" => {
		2832	id => "infobox",
		2833	title => "Look",
		2834	reply => undef,
		2835	tooltip => "What you saw there",
		2836	},
		2837	"c/who" => {
		2838	id => "infobox",
		2839	title => "Players",
		2840	reply => undef,
		2841	tooltip => "Shows players who are currently online",
		2842	},
		2843	"c/body" => {
		2844	id => "infobox",
		2845	title => "Body Parts",
		2846	reply => undef,
		2847	tooltip => "Shows which body parts you posess and are available",
		2848	},
		2849	"c/statistics" => {
		2850	id => "infobox",
		2851	title => "Statistics",
		2852	reply => undef,
		2853	tooltip => "Shows your primary statistics",
		2854	},
		2855	"c/skills" => {
		2856	id => "infobox",
		2857	title => "Skills",
		2858	reply => undef,
		2859	tooltip => "Shows your experience per skill and item power",
		2860	},
		2861	"c/shopitems" => {
		2862	id => "infobox",
		2863	title => "Shop Items",
		2864	reply => undef,
		2865	tooltip => "Shows the items currently for sale in this shop",
		2866	},
		2867	"c/resistances" => {
		2868	id => "infobox",
		2869	title => "Resistances",
		2870	reply => undef,
		2871	tooltip => "Shows your resistances",
		2872	},
		2873	"c/pets" => {
		2874	id => "infobox",
		2875	title => "Pets",
		2876	reply => undef,
		2877	tooltip => "Shows information abotu your pets/a specific pet",
		2878	},
		2879	"c/perceiveself" => {
		2880	id => "infobox",
		2881	title => "Perceive Self",
		2882	reply => undef,
		2883	tooltip => "You gained detailed knowledge about yourself",
		2884	},
		2885	"c/uptime" => {
		2886	id => "infobox",
		2887	title => "Uptime",
		2888	reply => undef,
		2889	tooltip => "How long the server has been running since last restart",
		2890	},
		2891	"c/mapinfo" => {
		2892	id => "infobox",
		2893	title => "Map Info",
		2894	reply => undef,
		2895	tooltip => "Information related to the maps",
		2896	},
		2897	"c/party" => {
		2898	id => "party",
		2899	title => "Party",
		2900	reply => "gsay ",
		2901	tooltip => "Messages and chat related to your party",
		2902	},
		2903	"c/death" => {
		2904	id => "death",
		2905	title => "Death",
		2906	reply => undef,
		2907	tooltip => "Reason for and more info about your most recent death",
		2908	},
		2909	"c/say" => $SAY_CHANNEL,
		2910	"c/chat" => $CHAT_CHANNEL,
		2911	);
		2912
		2913	sub cf::client::send_msg {
		2914	my ($self, $channel, $msg, $color, @extra) = @_;
		2915
		2916	$msg = $self->pl->expand_cfpod ($msg)
		2917	unless $color & cf::NDI_VERBATIM;
		2918
		2919	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2920
		2921	# check predefined channels, for the benefit of C
		2922	if ($CHANNEL{$channel}) {
		2923	$channel = $CHANNEL{$channel};
		2924
		2925	$self->ext_msg (channel_info => $channel);
		2926	$channel = $channel->{id};
		2927
		2928	} elsif (ref $channel) {
		2929	# send meta info to client, if not yet sent
		2930	unless (exists $self->{channel}{$channel->{id}}) {
		2931	$self->{channel}{$channel->{id}} = $channel;
		2932	$self->ext_msg (channel_info => $channel);
		2933	}
		2934
		2935	$channel = $channel->{id};
		2936	}
		2937
		2938	return unless @extra || length $msg;
		2939
		2940	# default colour, mask it out
		2941	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2942	if $color & cf::NDI_DEF;
		2943
		2944	my $pkt = "msg "
		2945	. $self->{json_coder}->encode (
		2946	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2947	);
		2948
		2949	# try lzf for large packets
		2950	$pkt = "lzf " . Compress::LZF::compress $pkt
		2951	if 1024 <= length $pkt and $self->{can_lzf};
		2952
		2953	# split very large packets
		2954	if (8192 < length $pkt and $self->{can_lzf}) {
		2955	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2956	$pkt = "frag";
		2957	}
		2958
		2959	$self->send_packet ($pkt);
		2960	}
		2961
2073	=item $client->ext_event ($type, %msg)	2962	=item $client->ext_msg ($type, @msg)
2074		2963
2075	Sends an exti event to the client.	2964	Sends an ext event to the client.
2076		2965
2077	=cut	2966	=cut
2078		2967
2079	sub cf::client::ext_event($$%) {	2968	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	2969	my ($self, $type, @msg) = @_;
2081		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	2974	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	2975	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2976	}
		2977	}
		2978
		2979	=item $client->ext_reply ($msgid, @msg)
		2980
		2981	Sends an ext reply to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_reply($$@) {
		2986	my ($self, $id, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2990	} elsif ($self->extcmd == 1) {
		2991	#TODO: version 1, remove
		2992	unshift @msg, msgtype => "reply", msgid => $id;
		2993	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2994	}
2084	}	2995	}
2085		2996
2086	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
2087		2998
2088	Queues a query to the client, calling the given callback with	2999	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>,	3000	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>.	3001	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		3002
2092	Queries can fail, so check the return code. Or don't, as queries will become	3003	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	3004	become reliable at some point in the future.
2094		3005
2095	=cut	3006	=cut
2096		3007
2097	sub cf::client::query {	3008	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3017	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3019
2109	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
2111	}	3024	}
2112		3025
2113	cf::client->attach (	3026	cf::client->attach (
		3027	on_connect => sub {
		3028	my ($ns) = @_;
		3029
		3030	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3031	},
2114	on_reply => sub {	3032	on_reply => sub {
2115	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
2116		3034
2117	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
2118	# get handled first	3036	# get handled first
…		…
2130	} else {	3048	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3050	}
2133	}	3051	}
2134	},	3052	},
		3053	on_exticmd => sub {
		3054	my ($ns, $buf) = @_;
		3055
		3056	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3057
		3058	if (ref $msg) {
		3059	my ($type, $reply, @payload) =
		3060	"ARRAY" eq ref $msg
		3061	? @$msg
		3062	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3063
		3064	my @reply;
		3065
		3066	if (my $cb = $EXTICMD{$type}) {
		3067	@reply = $cb->($ns, @payload);
		3068	}
		3069
		3070	$ns->ext_reply ($reply, @reply)
		3071	if $reply;
		3072
		3073	} else {
		3074	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3075	}
		3076
		3077	cf::override;
		3078	},
2135	);	3079	);
2136		3080
2137	=item $client->async (\&cb)	3081	=item $client->async (\&cb)
2138		3082
2139	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
2182		3126
2183	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
2184		3128
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3129	$safe->permit_only (Opcode::opset qw(
		3130	:base_core :base_mem :base_orig :base_math
		3131	grepstart grepwhile mapstart mapwhile
		3132	sort time
		3133	));
2186		3134
2187	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
2188		3136
2189	=pod	3137	=pod
2190		3138
2191	The following functions and methods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
2192		3140
2193	cf::object contr pay_amount pay_player map	3141	cf::object
		3142	contr pay_amount pay_player map x y force_find force_add destroy
		3143	insert remove name archname title slaying race decrease split
		3144	value
		3145
2194	cf::object::player player	3146	cf::object::player
2195	cf::player peaceful	3147	player
2196	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
2197		3154
2198	=cut	3155	=cut
2199		3156
2200	for (	3157	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	3158	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3159	insert remove inv nrof name archname title slaying race
		3160	decrease split destroy change_exp value msg lore send_msg)],
2202	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
2205	) {	3164	) {
2206	no strict 'refs';	3165	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2225	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
2226		3185
2227	my $qcode = $code;	3186	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
2230		3191
2231	local $_;	3192	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
2233		3194
2234	my $eval =	3195	my $eval =
…		…
2277	=back	3238	=back
2278		3239
2279	=cut	3240	=cut
2280		3241
2281	#############################################################################	3242	#############################################################################
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 $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453
2454	#############################################################################
2455	# the server's init and main functions	3243	# the server's init and main functions
2456		3244
2457	sub load_facedata($) {	3245	sub load_facedata($) {
2458	my ($path) = @_;	3246	my ($path) = @_;
		3247
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		3253
2460	warn "loading facedata from $path\n";	3254	warn "loading facedata from $path\n";
2461		3255
2462	my $facedata;	3256	my $facedata;
2463	0 < aio_load $path, $facedata	3257	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3260	$facedata = Coro::Storable::thaw $facedata;
2467		3261
2468	$facedata->{version} == 2	3262	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		3264
		3265	# patch in the exptable
		3266	$facedata->{resource}{"res/exp_table"} = {
		3267	type => FT_RSRC,
		3268	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3269	};
		3270	cf::cede_to_tick;
		3271
2471	{	3272	{
2472	my $faces = $facedata->{faceinfo};	3273	my $faces = $facedata->{faceinfo};
2473		3274
2474	while (my ($face, $info) = each %$faces) {	3275	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3277
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3278	cf::face::set_visibility $idx, $info->{visibility};
		3279	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2479	Coro::cede;	3282
		3283	cf::cede_to_tick;
2480	}	3284	}
2481		3285
2482	while (my ($face, $info) = each %$faces) {	3286	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3287	next unless $info->{smooth};
		3288
2484	my $idx = cf::face::find $face	3289	my $idx = cf::face::find $face
2485	or next;	3290	or next;
		3291
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3295	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3297	}
2491	Coro::cede;	3298
		3299	cf::cede_to_tick;
2492	}	3300	}
2493	}	3301	}
2494		3302
2495	{	3303	{
2496	my $anims = $facedata->{animinfo};	3304	my $anims = $facedata->{animinfo};
2497		3305
2498	while (my ($anim, $info) = each %$anims) {	3306	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3308	cf::cede_to_tick;
2501	}	3309	}
2502		3310
2503	cf::anim::invalidate_all; # d'oh	3311	cf::anim::invalidate_all; # d'oh
2504	}	3312	}
2505		3313
		3314	{
		3315	# TODO: for gcfclient pleasure, we should give resources
		3316	# that gcfclient doesn't grok a >10000 face index.
		3317	my $res = $facedata->{resource};
		3318
		3319	while (my ($name, $info) = each %$res) {
		3320	if (defined $info->{type}) {
		3321	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3322	my $data;
		3323
		3324	if ($info->{type} & 1) {
		3325	# prepend meta info
		3326
		3327	my $meta = $enc->encode ({
		3328	name => $name,
		3329	%{ $info->{meta} || {} },
		3330	});
		3331
		3332	$data = pack "(w/a*)*", $meta, $info->{data};
		3333	} else {
		3334	$data = $info->{data};
		3335	}
		3336
		3337	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
2506	1	3349	1
2507	}	3350	}
2508		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
		3380	sub load_resource_file($) {
		3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
2509	sub reload_regions {	3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
2510	load_resource_file "$MAPDIR/regions"	3395	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3396	or die "unable to load regions file\n";
		3397
		3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
2512	}	3402	}
2513		3403
2514	sub reload_facedata {	3404	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3405	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3406	or die "unable to load facedata\n";
…		…
2527	}	3417	}
2528		3418
2529	sub reload_resources {	3419	sub reload_resources {
2530	warn "reloading resource files...\n";	3420	warn "reloading resource files...\n";
2531		3421
2532	reload_regions;
2533	reload_facedata;	3422	reload_facedata;
2534	reload_archetypes;	3423	reload_archetypes;
		3424	reload_regions;
2535	reload_treasures;	3425	reload_treasures;
2536		3426
2537	warn "finished reloading resource files\n";	3427	warn "finished reloading resource files\n";
2538	}	3428	}
2539		3429
2540	sub init {	3430	sub reload_config {
2541	reload_resources;	3431	warn "reloading config file...\n";
2542	}
2543		3432
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3434	or return;
2547		3435
2548	local $/;	3436	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2550		3438
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2552		3440
2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3441	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2559	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2560	};	3448	};
2561	warn $@ if $@;	3449	warn $@ if $@;
2562	}	3450	}
		3451
		3452	warn "finished reloading resource files\n";
		3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2563	}	3481	}
2564		3482
2565	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2566	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2569	(async {	3501	(async {
2570	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2572	};	3505	};
2573		3506
2574	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
		3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
2575	db_init;	3512	db_init;
		3513
		3514	cf::load_settings;
		3515	cf::load_materials;
		3516	cf::init_uuid;
		3517	cf::init_signals;
		3518	cf::init_commands;
		3519	cf::init_skills;
		3520
		3521	cf::init_beforeplay;
		3522
		3523	atomic;
		3524
2576	load_extensions;	3525	load_extensions;
2577		3526
2578	$TICK_WATCHER->start;	3527	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	3528
		3529	# no (long-running) fork's whatsoever before this point(!)
		3530	use POSIX ();
		3531	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3532
		3533	(pop @POST_INIT)->(0) while @POST_INIT;
		3534	};
		3535
		3536	main_loop;
2580	}	3537	}
2581		3538
2582	#############################################################################	3539	#############################################################################
2583	# initialisation and cleanup	3540	# initialisation and cleanup
2584		3541
2585	# install some emergency cleanup handlers	3542	# install some emergency cleanup handlers
2586	BEGIN {	3543	BEGIN {
		3544	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3545	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3546	$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";	3547	cf::cleanup "SIG$signal";
2595	},
2596	);	3548	};
		3549	}
		3550	}
		3551
		3552	sub write_runtime_sync {
		3553	# first touch the runtime file to show we are still running:
		3554	# the fsync below can take a very very long time.
		3555
		3556	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3557
		3558	my $guard = cf::lock_acquire "write_runtime";
		3559
		3560	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3561	or return;
		3562
		3563	my $value = $cf::RUNTIME + 90 + 10;
		3564	# 10 is the runtime save interval, for a monotonic clock
		3565	# 60 allows for the watchdog to kill the server.
		3566
		3567	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3568	and return;
		3569
		3570	# always fsync - this file is important
		3571	aio_fsync $fh
		3572	and return;
		3573
		3574	# touch it again to show we are up-to-date
		3575	aio_utime $fh, undef, undef;
		3576
		3577	close $fh
		3578	or return;
		3579
		3580	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3581	and return;
		3582
		3583	warn "runtime file written.\n";
		3584
2597	}	3585	1
		3586	}
		3587
		3588	our $uuid_lock;
		3589	our $uuid_skip;
		3590
		3591	sub write_uuid_sync($) {
		3592	$uuid_skip ||= $_[0];
		3593
		3594	return if $uuid_lock;
		3595	local $uuid_lock = 1;
		3596
		3597	my $uuid = "$LOCALDIR/uuid";
		3598
		3599	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3600	or return;
		3601
		3602	my $value = uuid_seq uuid_cur;
		3603
		3604	unless ($value) {
		3605	warn "cowardly refusing to write zero uuid value!\n";
		3606	return;
		3607	}
		3608
		3609	my $value = uuid_str $value + $uuid_skip;
		3610	$uuid_skip = 0;
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	close $fh
		3620	or return;
		3621
		3622	aio_rename "$uuid~", $uuid
		3623	and return;
		3624
		3625	warn "uuid file written ($value).\n";
		3626
		3627	1
		3628
		3629	}
		3630
		3631	sub write_uuid($$) {
		3632	my ($skip, $sync) = @_;
		3633
		3634	$sync ? write_uuid_sync $skip
		3635	: async { write_uuid_sync $skip };
2598	}	3636	}
2599		3637
2600	sub emergency_save() {	3638	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3639	my $freeze_guard = cf::freeze_mainloop;
2602		3640
2603	warn "enter emergency perl save\n";	3641	warn "emergency_perl_save: enter\n";
2604		3642
2605	cf::sync_job {	3643	cf::sync_job {
		3644	# this is a trade-off: we want to be very quick here, so
		3645	# save all maps without fsync, and later call a global sync
		3646	# (which in turn might be very very slow)
		3647	local $USE_FSYNC = 0;
		3648
2606	# use a peculiar iteration method to avoid tripping on perl	3649	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3650	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3651	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3652	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3653	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3654	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3657	$pl->save;
2614	}	3658	}
2615	warn "end emergency player save\n";	3659	warn "emergency_perl_save: end player save\n";
2616		3660
2617	warn "begin emergency map save\n";	3661	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3662	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3663	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3664	$map->valid or next;
2621	$map->save;	3665	$map->save;
2622	}	3666	}
2623	warn "end emergency map save\n";	3667	warn "emergency_perl_save: end map save\n";
2624		3668
2625	warn "begin emergency database checkpoint\n";	3669	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3670	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3671	warn "emergency_perl_save: end database checkpoint\n";
		3672
		3673	warn "emergency_perl_save: begin write uuid\n";
		3674	write_uuid_sync 1;
		3675	warn "emergency_perl_save: end write uuid\n";
2628	};	3676	};
2629		3677
		3678	warn "emergency_perl_save: starting sync()\n";
		3679	IO::AIO::aio_sync sub {
		3680	warn "emergency_perl_save: finished sync()\n";
		3681	};
		3682
2630	warn "leave emergency perl save\n";	3683	warn "emergency_perl_save: leave\n";
2631	}	3684	}
2632		3685
2633	sub post_cleanup {	3686	sub post_cleanup {
2634	my ($make_core) = @_;	3687	my ($make_core) = @_;
2635		3688
2636	warn Carp::longmess "post_cleanup backtrace"	3689	warn Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	3690	if $make_core;
		3691
		3692	my $fh = pidfile;
		3693	unlink $PIDFILE if <$fh> == $$;
		3694	}
		3695
		3696	# a safer delete_package, copied from Symbol
		3697	sub clear_package($) {
		3698	my $pkg = shift;
		3699
		3700	# expand to full symbol table name if needed
		3701	unless ($pkg =~ /^main::.*::$/) {
		3702	$pkg = "main$pkg" if $pkg =~ /^::/;
		3703	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3704	$pkg .= '::' unless $pkg =~ /::$/;
		3705	}
		3706
		3707	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3708	my $stem_symtab = *{$stem}{HASH};
		3709
		3710	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3711	or return;
		3712
		3713	# clear all symbols
		3714	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3715	for my $name (keys %$leaf_symtab) {
		3716	_gv_clear *{"$pkg$name"};
		3717	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3718	}
		3719	warn "cleared package $pkg\n";#d#
2638	}	3720	}
2639		3721
2640	sub do_reload_perl() {	3722	sub do_reload_perl() {
2641	# can/must only be called in main	3723	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2643	warn "can only reload from main coroutine";	3725	warn "can only reload from main coroutine";
2644	return;	3726	return;
2645	}	3727	}
2646		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2647	warn "reloading...";	3734	warn "reloading...";
2648		3735
2649	warn "entering sync_job";	3736	warn "entering sync_job";
2650		3737
2651	cf::sync_job {	3738	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3740	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3741	cf::write_runtime_sync; # external watchdog should not bark
2655		3742
2656	warn "syncing database to disk";	3743	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3744	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3745
2659	# if anything goes wrong in here, we should simply crash as we already saved	3746	# if anything goes wrong in here, we should simply crash as we already saved
2660		3747
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";	3748	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;	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3750	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	}	3751	}
2697		3752
2698	warn "... nuking $pkg";	3753	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3754	$_->cancel for values %EXT_CORO;
2700	}	3755	%EXT_CORO = ();
2701		3756
2702	warn "unloading all perl modules loaded from $LIBDIR";	3757	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3758	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3766	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3767
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
2713	$cb->();	3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2714	}	3777	}
2715		3778
2716	Symbol::delete_package $k;	3779	warn "unloading all perl modules loaded from $LIBDIR";
		3780	while (my ($k, $v) = each %INC) {
		3781	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3782
		3783	warn "... unloading $k";
		3784	delete $INC{$k};
		3785
		3786	$k =~ s/\.pm$//;
		3787	$k =~ s/\//::/g;
		3788
		3789	if (my $cb = $k->can ("unload_module")) {
		3790	$cb->();
		3791	}
		3792
		3793	clear_package $k;
2717	}	3794	}
2718		3795
2719	warn "getting rid of safe::, as good as possible";	3796	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3798	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2722		3799
2723	warn "unloading cf.pm \"a bit\"";	3800	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3803
2727	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3805	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2730		3807
2731	warn "unload completed, starting to reload now";	3808	warn "unload completed, starting to reload now";
2732		3809
2733	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2734	require cf;	3811	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2736		3813
2737	warn "loading config and database again";	3814	warn "loading config and database again";
2738	cf::cfg_load;	3815	cf::reload_config;
2739		3816
2740	warn "loading extensions";	3817	warn "loading extensions";
2741	cf::load_extensions;	3818	cf::load_extensions;
2742		3819
		3820	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3821	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3822	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3823	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3824	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3825	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3826	reattach $_ for values %PLAYER;
		3827	}
2749		3828
		3829	warn "running post_init jobs";
		3830	(pop @POST_INIT)->(1) while @POST_INIT;
		3831
2750	warn "leaving sync_job";	3832	warn "leaving sync_job";
2751		3833
2752	1	3834	1
2753	} or do {	3835	} or do {
2754	warn $@;	3836	warn $@;
2755	warn "error while reloading, exiting.";	3837	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3838	};
2758		3839
2759	warn "reloaded";	3840	warn "reloaded";
		3841	--$RELOAD;
		3842	}
		3843
		3844	$t1 = EV::time - $t1;
		3845	warn "reload completed in ${t1}s\n";
2760	};	3846	};
2761		3847
2762	our $RELOAD_WATCHER; # used only during reload	3848	our $RELOAD_WATCHER; # used only during reload
2763		3849
2764	sub reload_perl() {	3850	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3851	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3852	# coro crashes during coro_state_free->destroy here.
2767		3853
2768	$RELOAD_WATCHER ||= Event->timer (	3854	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3855	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3856
2771	data => WF_AUTOCANCEL,	3857	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3858	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3859	undef $RELOAD_WATCHER;
2775	},	3860	};
2776	);	3861	};
2777	}	3862	}
2778		3863
2779	register_command "reload" => sub {	3864	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2781		3866
2782	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3868	$who->message ("reloading server.");
		3869	async {
		3870	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3871	reload_perl;
		3872	};
2785	}	3873	}
2786	};	3874	};
2787		3875
2788	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2789		3877
…		…
2791		3879
2792	our @WAIT_FOR_TICK;	3880	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3881	our @WAIT_FOR_TICK_BEGIN;
2794		3882
2795	sub wait_for_tick {	3883	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3884	return if tick_inhibit || $Coro::current == $Coro::main;
2798		3885
2799	my $signal = new Coro::Signal;	3886	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3887	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3888	$signal->wait;
2802	}	3889	}
2803		3890
2804	sub wait_for_tick_begin {	3891	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3892	return if tick_inhibit || $Coro::current == $Coro::main;
2807		3893
2808	my $signal = new Coro::Signal;	3894	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3895	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3896	$signal->wait;
2811	}	3897	}
2812		3898
2813	$TICK_WATCHER = Event->timer (	3899	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) {	3900	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	3902	unless ++$bug_warning > 10;
2823	return;	3903	return;
2824	}	3904	}
2825		3905
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2829		3907
2830	$RUNTIME += $TICK;
2831	$NEXT_TICK += $TICK;
2832
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	3910	Coro::async_pool {
		3911	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	3912	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	3913	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	3914	};
		3915	}
2840		3916
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) {	3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	3918	$sig->send;
2852	}	3919	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	3920	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	3921	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	3922	}
2859	);	3923
		3924	$LOAD = ($NOW - $TICK_START) / $TICK;
		3925	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3926
		3927	if (0) {
		3928	if ($NEXT_TICK) {
		3929	my $jitter = $TICK_START - $NEXT_TICK;
		3930	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3931	warn "jitter $JITTER\n";#d#
		3932	}
		3933	}
		3934	}
2860		3935
2861	{	3936	{
2862	BDB::max_poll_time $TICK * 0.1;	3937	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	3938
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;	3939	BDB::min_parallel 8;
2872		3940	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	3941	$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		3942
2888	unless ($DB_ENV) {	3943	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	3944	$DB_ENV = BDB::db_env_create;
		3945	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3946	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3947	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3948	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3949	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2890		3950
2891	cf::sync_job {	3951	cf::sync_job {
2892	eval {	3952	eval {
2893	BDB::db_env_open	3953	BDB::db_env_open
2894	$DB_ENV,	3954	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	3958	0666;
2899		3959
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3960	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	};	3961	};
2905		3962
2906	cf::cleanup "db_env_open(db): $@" if $@;	3963	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	3964	};
2908	}	3965	}
		3966
		3967	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3968	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3969	};
		3970	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3971	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3972	};
		3973	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3974	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3975	};
2909	}	3976	}
2910		3977
2911	{	3978	{
		3979	# configure IO::AIO
		3980
2912	IO::AIO::min_parallel 8;	3981	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	3982	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	3983	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	3984	}
2918	data => WF_AUTOCANCEL,	3985
2919	fd => IO::AIO::poll_fileno,	3986	my $_log_backtrace;
2920	poll => 'r',	3987
2921	prio => 6,	3988	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	3989	my ($msg, @addr) = @_;
2923	);	3990
		3991	$msg =~ s/\n//;
		3992
		3993	# limit the # of concurrent backtraces
		3994	if ($_log_backtrace < 2) {
		3995	++$_log_backtrace;
		3996	my $perl_bt = Carp::longmess $msg;
		3997	async {
		3998	$Coro::current->{desc} = "abt $msg";
		3999
		4000	my @bt = fork_call {
		4001	@addr = map { sprintf "%x", $_ } @addr;
		4002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4004	or die "addr2line: $!";
		4005
		4006	my @funcs;
		4007	my @res = <$fh>;
		4008	chomp for @res;
		4009	while (@res) {
		4010	my ($func, $line) = splice @res, 0, 2, ();
		4011	push @funcs, "[$func] $line";
		4012	}
		4013
		4014	@funcs
		4015	};
		4016
		4017	LOG llevInfo, "[ABT] $perl_bt\n";
		4018	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4019	LOG llevInfo, "[ABT] $_\n" for @bt;
		4020	--$_log_backtrace;
		4021	};
		4022	} else {
		4023	LOG llevInfo, "[ABT] $msg\n";
		4024	LOG llevInfo, "[ABT] [suppressed]\n";
		4025	}
2924	}	4026	}
2925		4027
2926	# load additional modules	4028	# load additional modules
2927	use cf::pod;	4029	require "cf/$_.pm" for @EXTRA_MODULES;
		4030	cf::_connect_to_perl_2;
2928		4031
2929	END { cf::emergency_save }	4032	END { cf::emergency_save }
2930		4033
2931	1	4034	1
2932		4035

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