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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC vs.
Revision 1.491 by root, Sat Oct 24 09:18:44 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
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	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 $REALLY_UNLOOP; # never set to true, please :)
98		147
99	binmode STDOUT;	148	binmode STDOUT;
100	binmode STDERR;	149	binmode STDERR;
101		150
102	# read virtual server time, if available	151	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
107	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
108		159
109	mkdir $_	160	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		162
112	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
113		164
114	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::"} };
115		177
116	#############################################################################	178	#############################################################################
117		179
118	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
119		181
…		…
155		217
156	The raw value load value from the last tick.	218	The raw value load value from the last tick.
157		219
158	=item %cf::CFG	220	=item %cf::CFG
159		221
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	223	from wherever your confdir points to.
162		224
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		226
165	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
166	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
167	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.
168		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
169	=back	243	=back
170		244
171	=cut	245	=cut
172		246
173	BEGIN {	247	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	248	my $msg = join "", @_;
176		249
177	$msg .= "\n"	250	$msg .= "\n"
178	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
179		252
180	$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;
181		254
182	utf8::encode $msg;
183	LOG llevError, $msg;	255	LOG llevError, $msg;
184	};	256	};
185	}	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	};
186		271
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@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';
192	@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)
193		279
194	# 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
195	# within the Safe compartment.	281	# within the Safe compartment.
196	for my $pkg (qw(	282	for my $pkg (qw(
197	cf::global cf::attachable	283	cf::global cf::attachable
198	cf::object cf::object::player	284	cf::object cf::object::player
199	cf::client cf::player	285	cf::client cf::player
200	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
201	cf::map cf::party cf::region	288	cf::party cf::region
202	)) {	289	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	291	}
206		292
207	$Event::DIED = sub {	293	$EV::DIED = sub {
208	warn "error in event callback: @_";	294	warn "error in event callback: @_";
209	};	295	};
		296
		297	#############################################################################
210		298
211	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
212		300
213	=over 4	301	=over 4
214		302
…		…
233	$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;
234	$d	322	$d
235	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
236	}	324	}
237		325
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
241		327
242	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
243		329
244	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
245		331
246	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
247		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
248	=item cf::lock_wait $string	355	=item cf::lock_wait $string
249		356
250	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
251		358
252	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
253		360
254	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
255	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,
256	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
257	returned.	364	returned.
258		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
259	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
260	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
261		371
262	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
263		373
264	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.
265		375
266	=cut	376	=cut
267		377
268	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
269		379
270	sub lock_wait($) {	380	sub lock_wait($) {
271	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	382	}
279		383
280	sub lock_acquire($) {	384	sub lock_acquire($) {
281	my ($key) = @_;	385	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	386	}
293		387
294	sub lock_active($) {	388	sub lock_active($) {
295	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	390	}
299		391
300	sub freeze_mainloop {	392	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
302		394
303	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
304	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
305	};	456	}
306	$TICK_WATCHER->stop;	457	};
307	$guard	458
		459	sub get_slot($;$$) {
		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	$sig->wait;
308	}	471	}
309		472
310	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
311		474
312	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		480
318	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
319		482
320	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
321		484
322	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
325		489
326	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
329	fast or be very important.	493	fast or be very important.
…		…
332		496
333	sub sync_job(&) {	497	sub sync_job(&) {
334	my ($job) = @_;	498	my ($job) = @_;
335		499
336	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	501	my $time = EV::time;
338		502
339	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
341		505
342	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	507
344	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
345		509
346	my $busy = 1;	510	my $busy = 1;
347	my @res;	511	my @res;
348		512
349	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	515	@res = eval { $job->() };
351	warn $@ if $@;	516	warn $@ if $@;
352	undef $busy;	517	undef $busy;
353	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
354		519
355	while ($busy) {	520	while ($busy) {
356	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
357	}	525	}
		526	}
358		527
359	$time = Event::time - $time;	528	my $time = EV::time - $time;
360		529
361	LOG llevError | logBacktrace, "long sync job\n"
362	if $time > $TICK * 0.5;
363
364	$tick_start += $time; # do not account sync jobs to server load	530	$TICK_START += $time; # do not account sync jobs to server load
365		531
366	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
367	} else {	533	} else {
368	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
369		535
…		…
389	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
390		556
391	$coro	557	$coro
392	}	558	}
393		559
394	sub write_runtime {	560	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		561
397	# first touch the runtime file to show we are still running:	562	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	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.
399		566
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	567	=cut
401	utime undef, undef, $fh;	568
		569	sub fork_call(&@) {
		570	my ($cb, @args) = @_;
		571
		572	# we seemingly have to make a local copy of the whole thing,
		573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
		575
		576	my @res = Coro::Util::fork_eval {
		577	reset_signals;
		578	&$cb
		579	}, @args;
		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
402	}	638	};
		639	cf::cleanup "db_open(db): $@" if $@;
403		640
404	my $guard = cf::lock_acquire "write_runtime";	641	$db
		642	}
405		643
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	644	our $DB;
407	or return;
408		645
409	my $value = $cf::RUNTIME + 90 + 10;	646	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	647	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	648	$DB ||= db_table "db";
		649	};
		650	}
412		651
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	652	sub db_get($$) {
414	and return;	653	my $key = "$_[0]/$_[1]";
415		654
416	# always fsync - this file is important	655	cf::sync_job {
417	aio_fsync $fh	656	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		657
420	# touch it again to show we are up-to-date	658	$! ? ()
421	utime undef, undef, $fh;	659	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
432	}	736	}
433		737
434	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
435		739
436	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.
…		…
448		752
449	#############################################################################	753	#############################################################################
450		754
451	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
452		756
453	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
454	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")
455	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
456		760
457	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>
458	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
459	crossfire+).	763	Deliantra).
460		764
461	=over 4	765	=over 4
462		766
463	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
464		768
…		…
508	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
509		813
510	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
512		816
513	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
514	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.
515		819
516	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
517		821
518	=over 4	822	=over 4
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
628		932
629	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		937
634	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	939	my $pkg = shift @arg;
636		940
637	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
667	}	971	}
668		972
669	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
670	} else {	974	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	976	}
673		977
674	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
675	}	979	}
676		980
…		…
678	if (ref $_[0]) {	982	if (ref $_[0]) {
679	_object_attach @_;	983	_object_attach @_;
680	} else {	984	} else {
681	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
682	}	986	}
		987	_recalc_want;
683	};	988	};
684		989
685	# all those should be optimised	990	# all those should be optimised
686	sub cf::attachable::detach {	991	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
691	reattach ($obj);	996	reattach ($obj);
692	} else {	997	} else {
693	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
694	}	999	}
		1000	_recalc_want;
695	};	1001	};
696		1002
697	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
699		1005
…		…
714	";	1020	";
715	die if $@;	1021	die if $@;
716	}	1022	}
717		1023
718	our $override;	1024	our $override;
719	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?
720		1026
721	sub override {	1027	sub override {
722	$override = 1;	1028	$override = 1;
723	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
724	}	1030	}
725		1031
726	sub do_invoke {	1032	sub do_invoke {
727	my $event = shift;	1033	my $event = shift;
728	my $callbacks = shift;	1034	my $callbacks = shift;
729		1035
730	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
731		1037
732	local $override;	1038	local $override;
733		1039
734	for (@$callbacks) {	1040	for (@$callbacks) {
735	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
744	}	1050	}
745		1051
746	0	1052	0
747	}	1053	}
748		1054
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1056
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1058
753	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
754		1060
755	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
756	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
757	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1064
759	=back	1065	=back
760		1066
761	=cut	1067	=cut
762		1068
763	#############################################################################	1069	#############################################################################
764	# 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, $ob2
		1112	}
765		1113
766	sub reattach {	1114	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1116	my ($obj) = @_;
769		1117
		1118	# no longer needed after getting rid of delete_package?
770	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
771		1120
772	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
773		1122
774	@$registry = ();	1123	@$registry = ();
775		1124
…		…
790	cf::attachable->attach (	1139	cf::attachable->attach (
791	prio => -1000000,	1140	prio => -1000000,
792	on_instantiate => sub {	1141	on_instantiate => sub {
793	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
794		1143
795	$data = from_json $data;	1144	$data = decode_json $data;
796		1145
797	for (@$data) {	1146	for (@$data) {
798	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
799		1148
800	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1165	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
818		1167
819	sync_job {	1168	sync_job {
820	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
823		1173
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	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	}
828	close $fh;	1181	aio_close $fh;
829		1182
830	if (@$objs) {	1183	if (@$objs) {
831	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) {
832	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
835	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	}
836	close $fh;	1192	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
838	}	1194	}
839	} else {	1195	} else {
840	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
841	}	1197	}
842		1198
843	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1203	} else {
845	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
846	}	1205	}
847	} else {	1206	} else {
848	aio_unlink $filename;	1207	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
850	}	1209	}
851	}	1210	};
852	}	1211	}
853		1212
854	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
856		1215
…		…
868	or return;	1227	or return;
869		1228
870	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
872	or return;	1231	or return;
		1232
873	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
874	}	1235	}
875		1236
		1237	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
878	return ($data, $av);	1241	($data, $av)
879	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
880		1249
881	#############################################################################	1250	#############################################################################
882	# command handling &c	1251	# command handling &c
883		1252
884	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1267	}
899		1268
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1270
902	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.
903		1276
904	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
905	called.	1278	called.
906		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
907	=cut	1291	=cut
908		1292
909	sub register_extcmd {	1293	sub register_extcmd {
910	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
911		1295
912	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
913	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
914		1306
915	cf::player->attach (	1307	cf::player->attach (
916	on_command => sub {	1308	on_command => sub {
917	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
918		1310
…		…
926	cf::override;	1318	cf::override;
927	},	1319	},
928	on_extcmd => sub {	1320	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
930		1322
931	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1324
933	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
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
939	} else {	1340	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1342	}
942		1343
943	cf::override;	1344	cf::override;
944	},	1345	},
945	);	1346	);
946		1347
		1348	# "readahead" all extensions
947	sub load_extension {	1349	sub cache_extensions {
948	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
949		1351
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1355	}
975	die $@;
976	}	1356	};
977		1357
978	push @EXTS, $pkg;	1358	$grp
979	}	1359	}
980		1360
981	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
982	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1366	next unless -r $path;
984	eval {	1367
985	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	$progress = 1;
986	1	1424	}
987	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
988	}	1430	};
989	}	1431	}
990		1432
991	#############################################################################	1433	#############################################################################
992		1434
		1435	=back
		1436
993	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
994		1438
995	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
996		1440
997	=cut	1441	=cut
998		1442
999	package cf::player;	1443	package cf::player;
1000		1444
1001	use Coro::AIO;	1445	use Coro::AIO;
1002		1446
1003	=head3 cf::player	1447	=head3 cf::player
1004		1448
1005	=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	}
1006		1464
1007	=item cf::player::find $login	1465	=item cf::player::find $login
1008		1466
1009	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
1010		1468
…		…
1029		1487
1030	sub exists($) {	1488	sub exists($) {
1031	my ($login) = @_;	1489	my ($login) = @_;
1032		1490
1033	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1035	}	1493	}
1036		1494
1037	sub find($) {	1495	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1497	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1508
1051	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1052	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;
1053	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1054	}	1518	}
1055	}	1519	}
1056	}	1520	}
1057		1521
…		…
1066	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1067		1531
1068	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1070		1534
		1535	cf::get_slot 0.01;
		1536
1071	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1072	Coro::cede;	1538	cf::cede_to_tick;
1073	}	1539	}
1074		1540
1075	sub new($) {	1541	sub new($) {
1076	my ($login) = @_;	1542	my ($login) = @_;
1077		1543
…		…
1083	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1084		1550
1085	$self	1551	$self
1086	}	1552	}
1087		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
1088	=item $pl->quit_character	1564	=item $pl->quit_character
1089		1565
1090	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1092		1568
…		…
1096	my ($pl) = @_;	1572	my ($pl) = @_;
1097		1573
1098	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1099		1575
1100	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1101	$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
1102		1578
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1107		1585
1108	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1623	or return [];
1146		1624
1147	my @logins;	1625	my @logins;
1148		1626
1149	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") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1153		1637
1154	utf8::decode $login;	1638	utf8::decode $login;
1155	push @logins, $login;	1639	push @logins, $login;
1156	}	1640	}
1157		1641
…		…
1184	}	1668	}
1185		1669
1186	\@paths	1670	\@paths
1187	}	1671	}
1188		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1189	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1190		1678
1191	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1192		1680
1193	=cut	1681	=cut
1194		1682
1195	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1197		1685
1198	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1687	}
1202		1688
1203	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1204		1690
1205	Sends an ext event to the client.	1691	Sends an ext event to the client.
1206		1692
1207	=cut	1693	=cut
1208		1694
1209	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1211		1697
1212	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1213	}	1699	}
1214		1700
1215	=head3 cf::region	1701	=head3 cf::region
1216		1702
1217	=over 4	1703	=over 4
…		…
1220		1706
1221	package cf::region;	1707	package cf::region;
1222		1708
1223	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1224		1710
1225	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1226		1712
1227	=cut	1713	=cut
1228		1714
1229	sub find_by_path($) {	1715	sub find_by_path($) {
1230	my ($path) = @_;	1716	my ($path) = @_;
1231		1717
1232	my ($match, $specificity);	1718	my ($match, $specificity);
1233		1719
1234	for my $region (list) {	1720	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1238	}	1724	}
1239	}	1725	}
1240		1726
…		…
1261	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1263		1749
1264	sub generate_random_map {	1750	sub generate_random_map {
1265	my ($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
1266	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1756	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1304	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1305		1794
1306	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1307	local $self->{path};	1796	local $self->{path};
1308	local $self->{load_path};	1797	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1798
1312	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1313	}	1800	}
1314		1801
1315	sub normalise {	1802	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1363	return $self;	1850	return $self;
1364	}	1851	}
1365	}	1852	}
1366		1853
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1855	()
1369	}	1856	}
1370		1857
1371	sub init {	1858	sub init {
1372	my ($self) = @_;	1859	my ($self) = @_;
…		…
1394		1881
1395	# the temporary/swap location	1882	# the temporary/swap location
1396	sub save_path {	1883	sub save_path {
1397	my ($self) = @_;	1884	my ($self) = @_;
1398		1885
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1401	}	1888	}
1402		1889
1403	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1404	sub uniq_path {	1891	sub uniq_path {
1405	my ($self) = @_;	1892	my ($self) = @_;
1406		1893
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1409	}	1896	}
1410		1897
1411	# and all this just because we cannot iterate over	1898	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1899	my ($self) = @_;
1415		1900
1416	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1418	}	1904	}
1419		1905
1420	sub unlink_save {	1906	sub unlink_save {
1421	my ($self) = @_;	1907	my ($self) = @_;
1422		1908
…		…
1427		1913
1428	sub load_header_from($) {	1914	sub load_header_from($) {
1429	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1430		1916
1431	utf8::encode $path;	1917	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	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;
1437		1926
1438	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1439		1928
1440	1	1929	1
1441	}	1930	}
…		…
1480	$self->load_header_orig	1969	$self->load_header_orig
1481	or return;	1970	or return;
1482	$self->prepare_orig;	1971	$self->prepare_orig;
1483	}	1972	}
1484		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1485	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1978	unless $self->default_region;
1487		1979
1488	1	1980	1
1489	}	1981	}
…		…
1492	sub find {	1984	sub find {
1493	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1494		1986
1495	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1496		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1498		1991
1499	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1502	or return;	1994	or return;
1503		1995
1504	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1505		1997
1506	$map->load_header	1998	$map->load_header
1507	or return;	1999	or return;
1508		2000
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1512	$map->reset;	2006	$map->reset;
1513	undef $guard;
1514	return find $path;	2007	return find $path;
1515	}	2008	}
1516		2009
1517	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1518	}	2011	}
…		…
1527	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1528		2021
1529	my $path = $self->{path};	2022	my $path = $self->{path};
1530		2023
1531	{	2024	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1533		2026
		2027	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2029
1536	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1537		2031
1538	$self->alloc;	2032	$self->alloc;
1539		2033
1540	$self->pre_load;	2034	$self->pre_load;
1541	Coro::cede;	2035	cf::cede_to_tick;
1542		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1544	or return;	2040	or return;
1545		2041
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1547	if delete $self->{load_original};	2043	if delete $self->{load_original};
1548		2044
1549	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2046	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2049	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1554	}	2053	}
1555	}	2054	}
1556		2055
1557	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1558	# now do the right thing for maps	2059	# now do the right thing for maps
1559	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2062	unless $self->difficulty;
1562	Coro::cede;	2063	cf::cede_to_tick;
1563		2064
1564	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2066	$self->decay_objects;
1566	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1567	$self->update_buttons;	2068	$self->update_buttons;
1568	Coro::cede;	2069	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2070	$self->activate;
1572	}	2071	}
1573		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2077	}
1576		2078
1577	$self->post_load;	2079	$self->post_load;
1578	}	2080	}
1579		2081
…		…
1581	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1582		2084
1583	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2086	if $self->per_player;
1585		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1586	$self	2091	$self
1587	}	2092	}
1588		2093
1589	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2095	sub load_neighbours {
1591	my ($map) = @_;	2096	my ($map) = @_;
1592		2097
1593	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1594		2099
1595	for (0 .. 3) {	2100	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1597	or next;	2102	or next;
1598	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1599	or next;	2104	or next;
1600	$neigh->load;	2105	$neigh->load;
1601		2106
		2107	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2110	}
1605		2111
1606	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1608	or next;	2115	or next;
1609	$neigh->load;	2116	$neigh->load;
1610	}	2117	}
1611	}	2118	}
1612		2119
…		…
1617	}	2124	}
1618		2125
1619	sub do_load_sync {	2126	sub do_load_sync {
1620	my ($map) = @_;	2127	my ($map) = @_;
1621		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1622	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1623	}	2133	}
1624		2134
1625	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1627		2137
1628	sub find_async {	2138	sub find_async {
1629	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1630		2140
1631	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1632		2142
1633	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2145	}
1636		2146
1637	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1638	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1639	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2154	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2155	$map->load if $v;
		2156	}
1644		2157
1645	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1646	}	2159	}
1647	}	2160	}
1648	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1649	};	2162	};
1650	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2166	}
1654		2167
1655	sub save {	2168	sub save {
1656	my ($self) = @_;	2169	my ($self) = @_;
1657		2170
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2172
1660	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1661		2174
1662	return unless $self->dirty;	2175	return unless $self->dirty;
1663		2176
…		…
1669	return if $self->{deny_save};	2182	return if $self->{deny_save};
1670		2183
1671	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1672		2185
1673	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1675	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1676		2192
1677	if ($uniq) {	2193	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2196	} else {
…		…
1686	my ($self) = @_;	2202	my ($self) = @_;
1687		2203
1688	# save first because save cedes	2204	# save first because save cedes
1689	$self->save;	2205	$self->save;
1690		2206
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2208
1693	return if $self->players;	2209	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2211	return if $self->{deny_save};
1696		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2217	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2218	}
1700		2219
1701	sub reset_at {	2220	sub reset_at {
1702	my ($self) = @_;	2221	my ($self) = @_;
1703		2222
1704	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1707		2225
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2228
…		…
1721	my ($self) = @_;	2239	my ($self) = @_;
1722		2240
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2242
1725	return if $self->players;	2243	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2244
1728	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1729		2246
1730	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1731		2248
1732	# need to save uniques path	2249	# need to save uniques path
1733	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2254	if $uniq;
1738	}	2255	}
1739		2256
1740	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1741		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2261	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2262
1746	$self->unlink_save;	2263	$self->unlink_save;
1747	$self->destroy;	2264	$self->destroy;
1748	}	2265	}
1749		2266
1750	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1751		2268
1752	sub nuke {	2269	sub nuke {
1753	my ($self) = @_;	2270	my ($self) = @_;
1754		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1755	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1756		2276
1757	$self->unlink_save;	2277	$self->unlink_save;
1758		2278
1759	bless $self, "cf::map";	2279	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2284
1765	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1766		2287
1767	$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	]
1768	}	2325	}
1769		2326
1770	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1771		2328
1772	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2330	instantiated unique items. May block.
1774		2331
1775	=cut	2332	=cut
1776		2333
1777	sub unique_maps() {	2334	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2335	[
1779	or return;	2336	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2337	utf8::decode $_;
1785	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2340	? ()
1788	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2343	]
1790
1791	\@paths
1792	}	2344	}
1793		2345
1794	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> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
		2373	}
		2374
		2375	\@maps
		2376	}
1795		2377
1796	=back	2378	=back
1797		2379
1798	=head3 cf::object	2380	=head3 cf::object
1799		2381
…		…
1803		2385
1804	=over 4	2386	=over 4
1805		2387
1806	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1807		2389
1808	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1809		2392
1810	=cut	2393	=cut
1811		2394
1812	sub inv_recursive_;	2395	sub inv_recursive_;
1813	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1816		2399
1817	sub inv_recursive {	2400	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1819	}	2402	}
1820		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1821	package cf;	2432	package cf;
1822		2433
1823	=back	2434	=back
1824		2435
1825	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1832	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1834		2445
1835	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1836		2461
1837	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2463	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1842		2467
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2469
1845	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1847	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1850	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1851	}	2495	}
1852		2496
1853	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1854		2498
1855	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1868		2512
1869	=item $player_object->enter_link	2513	=item $player_object->enter_link
1870		2514
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2516
1873	The player should be reasonably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1874	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1875		2521
1876	Will never block.	2522	Will never block.
1877		2523
1878	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1879		2525
…		…
1902	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1903		2549
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2551
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1908		2554
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1910	}	2556	}
1911		2557
1912	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1914		2562
1915	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1916		2564
1917	unless ($map) {	2565	unless ($map) {
1918	# restore original map position	2566	# restore original map position
…		…
1932	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1933	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1934	if $x <=0 && $y <= 0;	2582	if $x <=0 && $y <= 0;
1935		2583
1936	$map->load;	2584	$map->load;
1937	$map->load_diag;	2585	$map->load_neighbours;
1938		2586
1939	return unless $self->contr->active;	2587	return unless $self->contr->active;
1940	$self->activate_recursive;
1941		2588
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2590	$self->enter_map ($map, $x, $y);
1944	}
1945		2591
1946	cf::player->attach (	2592	# only activate afterwards, to support waiting in hooks
1947	on_logout => sub {	2593	$self->activate_recursive;
1948	my ($pl) = @_;	2594	}
1949		2595
1950	# abort map switching before logout	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1951	if ($pl->ob->{_link_pos}) {
1952	cf::sync_job {
1953	$pl->ob->leave_link
1954	};
1955	}
1956	},
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2597
1960	# try to abort aborted map switching on player login :)	2598	Moves the player to the given map-path and coordinates by first freezing
1961	# should happen only on crashes	2599	her, loading and preparing them map, calling the provided $check callback
1962	if ($pl->ob->{_link_pos}) {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1963	$pl->ob->enter_link;	2601	the new (success) or old (failed) map position. In either case, $done will
1964	(async {	2602	be called at the end of this process.
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977		2603
1978	=item $player_object->goto ($path, $x, $y)	2604	Note that $check will be called with a potentially non-loaded map, so if
		2605	it needs a loaded map it has to call C<< ->load >>.
1979		2606
1980	=cut	2607	=cut
		2608
		2609	our $GOTOGEN;
1981		2610
1982	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2616
1985	$self->enter_link;	2617	$self->enter_link;
1986		2618
1987	(async {	2619	(async {
		2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
1988	my $map = eval {	2641	my $map = eval {
1989	my $map = cf::map::find $path;	2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
		2646	$map = $check->($map) if $check && $map;
		2647	} else {
		2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
		2650
1991	$map	2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
1992	} or	2657	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1996	})->prio (1);	2665	})->prio (1);
1997	}	2666	}
1998		2667
1999	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
2000		2669
…		…
2020	}	2689	}
2021		2690
2022	sub prepare_random_map {	2691	sub prepare_random_map {
2023	my ($exit) = @_;	2692	my ($exit) = @_;
2024		2693
2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
2026
2027	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
2028	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
2029	# that depends on the exit object	2696	# that depends on the exit object
2030		2697
2031	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
…		…
2033	if ($exit->map) {	2700	if ($exit->map) {
2034	$rmp->{region} = $exit->region->name;	2701	$rmp->{region} = $exit->region->name;
2035	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
2036	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
2037	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
2038	}	2707	}
2039		2708
2040	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
2041		2710
2042	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2043	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
2044	my $meta = "$RANDOMDIR/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
2045		2714
2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2047	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
2048	undef $fh;	2717	undef $fh;
2049	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
2050		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
2051	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
2052	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
2053	}	2726	}
2054	}	2727	}
2055		2728
2056	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
2057	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
2058		2731
2059	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
2060		2733
2061	if ($exit->slaying eq "/!") {
2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
2063	# the problem is that $exit might not survive long enough
2064	# so it needs to be done right now, right here
2065	cf::sync_job { prepare_random_map $exit };
2066	}
2067
2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2069	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;
2071
2072	$self->enter_link;	2734	$self->enter_link;
2073		2735
2074	(async {	2736	(async {
2075	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
2076	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
		2746	prepare_random_map $exit
		2747	if $exit->slaying eq "/!";
		2748	}
		2749
		2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
		2753
2077	$self->goto ($slaying, $hp, $sp);	2754	$self->goto ($map, $x, $y);
2078		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
2079	1;	2760	1
2080	}) {	2761	}) {
2081	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
2082	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
2083	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
2084	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
2085		2766
2086	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
…		…
2105		2786
2106	utf8::encode $text;	2787	utf8::encode $text;
2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2108	}	2789	}
2109		2790
		2791	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2792
		2793	Send a drawinfo or msg packet to the client, formatting the msg for the
		2794	client if neccessary. C<$type> should be a string identifying the type of
		2795	the message, with C<log> being the default. If C<$color> is negative, suppress
		2796	the message unless the client supports the msg packet.
		2797
		2798	=cut
		2799
		2800	# non-persistent channels (usually the info channel)
		2801	our %CHANNEL = (
		2802	"c/motd" => {
		2803	id => "infobox",
		2804	title => "MOTD",
		2805	reply => undef,
		2806	tooltip => "The message of the day",
		2807	},
		2808	"c/identify" => {
		2809	id => "infobox",
		2810	title => "Identify",
		2811	reply => undef,
		2812	tooltip => "Items recently identified",
		2813	},
		2814	"c/examine" => {
		2815	id => "infobox",
		2816	title => "Examine",
		2817	reply => undef,
		2818	tooltip => "Signs and other items you examined",
		2819	},
		2820	"c/shopinfo" => {
		2821	id => "infobox",
		2822	title => "Shop Info",
		2823	reply => undef,
		2824	tooltip => "What your bargaining skill tells you about the shop",
		2825	},
		2826	"c/book" => {
		2827	id => "infobox",
		2828	title => "Book",
		2829	reply => undef,
		2830	tooltip => "The contents of a note or book",
		2831	},
		2832	"c/lookat" => {
		2833	id => "infobox",
		2834	title => "Look",
		2835	reply => undef,
		2836	tooltip => "What you saw there",
		2837	},
		2838	"c/who" => {
		2839	id => "infobox",
		2840	title => "Players",
		2841	reply => undef,
		2842	tooltip => "Shows players who are currently online",
		2843	},
		2844	"c/body" => {
		2845	id => "infobox",
		2846	title => "Body Parts",
		2847	reply => undef,
		2848	tooltip => "Shows which body parts you posess and are available",
		2849	},
		2850	"c/statistics" => {
		2851	id => "infobox",
		2852	title => "Statistics",
		2853	reply => undef,
		2854	tooltip => "Shows your primary statistics",
		2855	},
		2856	"c/skills" => {
		2857	id => "infobox",
		2858	title => "Skills",
		2859	reply => undef,
		2860	tooltip => "Shows your experience per skill and item power",
		2861	},
		2862	"c/shopitems" => {
		2863	id => "infobox",
		2864	title => "Shop Items",
		2865	reply => undef,
		2866	tooltip => "Shows the items currently for sale in this shop",
		2867	},
		2868	"c/resistances" => {
		2869	id => "infobox",
		2870	title => "Resistances",
		2871	reply => undef,
		2872	tooltip => "Shows your resistances",
		2873	},
		2874	"c/pets" => {
		2875	id => "infobox",
		2876	title => "Pets",
		2877	reply => undef,
		2878	tooltip => "Shows information abotu your pets/a specific pet",
		2879	},
		2880	"c/perceiveself" => {
		2881	id => "infobox",
		2882	title => "Perceive Self",
		2883	reply => undef,
		2884	tooltip => "You gained detailed knowledge about yourself",
		2885	},
		2886	"c/uptime" => {
		2887	id => "infobox",
		2888	title => "Uptime",
		2889	reply => undef,
		2890	tooltip => "How long the server has been running since last restart",
		2891	},
		2892	"c/mapinfo" => {
		2893	id => "infobox",
		2894	title => "Map Info",
		2895	reply => undef,
		2896	tooltip => "Information related to the maps",
		2897	},
		2898	"c/party" => {
		2899	id => "party",
		2900	title => "Party",
		2901	reply => "gsay ",
		2902	tooltip => "Messages and chat related to your party",
		2903	},
		2904	"c/death" => {
		2905	id => "death",
		2906	title => "Death",
		2907	reply => undef,
		2908	tooltip => "Reason for and more info about your most recent death",
		2909	},
		2910	"c/say" => $SAY_CHANNEL,
		2911	"c/chat" => $CHAT_CHANNEL,
		2912	);
		2913
		2914	sub cf::client::send_msg {
		2915	my ($self, $channel, $msg, $color, @extra) = @_;
		2916
		2917	$msg = $self->pl->expand_cfpod ($msg)
		2918	unless $color & cf::NDI_VERBATIM;
		2919
		2920	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2921
		2922	# check predefined channels, for the benefit of C
		2923	if ($CHANNEL{$channel}) {
		2924	$channel = $CHANNEL{$channel};
		2925
		2926	$self->ext_msg (channel_info => $channel);
		2927	$channel = $channel->{id};
		2928
		2929	} elsif (ref $channel) {
		2930	# send meta info to client, if not yet sent
		2931	unless (exists $self->{channel}{$channel->{id}}) {
		2932	$self->{channel}{$channel->{id}} = $channel;
		2933	$self->ext_msg (channel_info => $channel);
		2934	}
		2935
		2936	$channel = $channel->{id};
		2937	}
		2938
		2939	return unless @extra || length $msg;
		2940
		2941	# default colour, mask it out
		2942	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2943	if $color & cf::NDI_DEF;
		2944
		2945	my $pkt = "msg "
		2946	. $self->{json_coder}->encode (
		2947	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2948	);
		2949
		2950	# try lzf for large packets
		2951	$pkt = "lzf " . Compress::LZF::compress $pkt
		2952	if 1024 <= length $pkt and $self->{can_lzf};
		2953
		2954	# split very large packets
		2955	if (8192 < length $pkt and $self->{can_lzf}) {
		2956	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2957	$pkt = "frag";
		2958	}
		2959
		2960	$self->send_packet ($pkt);
		2961	}
		2962
2110	=item $client->ext_event ($type, %msg)	2963	=item $client->ext_msg ($type, @msg)
2111		2964
2112	Sends an exti event to the client.	2965	Sends an ext event to the client.
2113		2966
2114	=cut	2967	=cut
2115		2968
2116	sub cf::client::ext_event($$%) {	2969	sub cf::client::ext_msg($$@) {
2117	my ($self, $type, %msg) = @_;	2970	my ($self, $type, @msg) = @_;
2118		2971
		2972	if ($self->extcmd == 2) {
		2973	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2974	} elsif ($self->extcmd == 1) { # TODO: remove
2119	$msg{msgtype} = "event_$type";	2975	push @msg, msgtype => "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	2976	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2977	}
		2978	}
		2979
		2980	=item $client->ext_reply ($msgid, @msg)
		2981
		2982	Sends an ext reply to the client.
		2983
		2984	=cut
		2985
		2986	sub cf::client::ext_reply($$@) {
		2987	my ($self, $id, @msg) = @_;
		2988
		2989	if ($self->extcmd == 2) {
		2990	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2991	} elsif ($self->extcmd == 1) {
		2992	#TODO: version 1, remove
		2993	unshift @msg, msgtype => "reply", msgid => $id;
		2994	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2995	}
2121	}	2996	}
2122		2997
2123	=item $success = $client->query ($flags, "text", \&cb)	2998	=item $success = $client->query ($flags, "text", \&cb)
2124		2999
2125	Queues a query to the client, calling the given callback with	3000	Queues a query to the client, calling the given callback with
2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3001	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2127	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3002	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2128		3003
2129	Queries can fail, so check the return code. Or don't, as queries will become	3004	Queries can fail, so check the return code. Or don't, as queries will
2130	reliable at some point in the future.	3005	become reliable at some point in the future.
2131		3006
2132	=cut	3007	=cut
2133		3008
2134	sub cf::client::query {	3009	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	3010	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	3018	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3019	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		3020
2146	$self->send_packet ($self->{query_queue}[0][0])	3021	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	3022	if @{ $self->{query_queue} } == 1;
		3023
		3024	1
2148	}	3025	}
2149		3026
2150	cf::client->attach (	3027	cf::client->attach (
		3028	on_connect => sub {
		3029	my ($ns) = @_;
		3030
		3031	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3032	},
2151	on_reply => sub {	3033	on_reply => sub {
2152	my ($ns, $msg) = @_;	3034	my ($ns, $msg) = @_;
2153		3035
2154	# this weird shuffling is so that direct followup queries	3036	# this weird shuffling is so that direct followup queries
2155	# get handled first	3037	# get handled first
…		…
2167	} else {	3049	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3050	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	3051	}
2170	}	3052	}
2171	},	3053	},
		3054	on_exticmd => sub {
		3055	my ($ns, $buf) = @_;
		3056
		3057	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3058
		3059	if (ref $msg) {
		3060	my ($type, $reply, @payload) =
		3061	"ARRAY" eq ref $msg
		3062	? @$msg
		3063	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3064
		3065	my @reply;
		3066
		3067	if (my $cb = $EXTICMD{$type}) {
		3068	@reply = $cb->($ns, @payload);
		3069	}
		3070
		3071	$ns->ext_reply ($reply, @reply)
		3072	if $reply;
		3073
		3074	} else {
		3075	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3076	}
		3077
		3078	cf::override;
		3079	},
2172	);	3080	);
2173		3081
2174	=item $client->async (\&cb)	3082	=item $client->async (\&cb)
2175		3083
2176	Create a new coroutine, running the specified callback. The coroutine will	3084	Create a new coroutine, running the specified callback. The coroutine will
…		…
2217	our $safe = new Safe "safe";	3125	our $safe = new Safe "safe";
2218	our $safe_hole = new Safe::Hole;	3126	our $safe_hole = new Safe::Hole;
2219		3127
2220	$SIG{FPE} = 'IGNORE';	3128	$SIG{FPE} = 'IGNORE';
2221		3129
2222	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3130	$safe->permit_only (Opcode::opset qw(
		3131	:base_core :base_mem :base_orig :base_math
		3132	grepstart grepwhile mapstart mapwhile
		3133	sort time
		3134	));
2223		3135
2224	# here we export the classes and methods available to script code	3136	# here we export the classes and methods available to script code
2225		3137
2226	=pod	3138	=pod
2227		3139
2228	The following functions and methods are available within a safe environment:	3140	The following functions and methods are available within a safe environment:
2229		3141
2230	cf::object contr pay_amount pay_player map	3142	cf::object
		3143	contr pay_amount pay_player map x y force_find force_add destroy
		3144	insert remove name archname title slaying race decrease split
		3145	value
		3146
2231	cf::object::player player	3147	cf::object::player
2232	cf::player peaceful	3148	player
2233	cf::map trigger	3149
		3150	cf::player
		3151	peaceful
		3152
		3153	cf::map
		3154	trigger
2234		3155
2235	=cut	3156	=cut
2236		3157
2237	for (	3158	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	3159	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3160	insert remove inv nrof name archname title slaying race
		3161	decrease split destroy change_exp value msg lore send_msg)],
2239	["cf::object::player" => qw(player)],	3162	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	3163	["cf::player" => qw(peaceful send_msg)],
2241	["cf::map" => qw(trigger)],	3164	["cf::map" => qw(trigger)],
2242	) {	3165	) {
2243	no strict 'refs';	3166	no strict 'refs';
2244	my ($pkg, @funs) = @$_;	3167	my ($pkg, @funs) = @$_;
2245	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3168	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2262	my ($code, %vars) = @_;	3185	my ($code, %vars) = @_;
2263		3186
2264	my $qcode = $code;	3187	my $qcode = $code;
2265	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3188	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2266	$qcode =~ s/\n/\\n/g;	3189	$qcode =~ s/\n/\\n/g;
		3190
		3191	%vars = (_dummy => 0) unless %vars;
2267		3192
2268	local $_;	3193	local $_;
2269	local @safe::cf::_safe_eval_args = values %vars;	3194	local @safe::cf::_safe_eval_args = values %vars;
2270		3195
2271	my $eval =	3196	my $eval =
…		…
2314	=back	3239	=back
2315		3240
2316	=cut	3241	=cut
2317		3242
2318	#############################################################################	3243	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491
2492	#############################################################################
2493	# the server's init and main functions	3244	# the server's init and main functions
2494		3245
2495	sub load_facedata($) {	3246	sub load_facedata($) {
2496	my ($path) = @_;	3247	my ($path) = @_;
		3248
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2497		3254
2498	warn "loading facedata from $path\n";	3255	warn "loading facedata from $path\n";
2499		3256
2500	my $facedata;	3257	my $facedata;
2501	0 < aio_load $path, $facedata	3258	0 < aio_load $path, $facedata
…		…
2504	$facedata = Coro::Storable::thaw $facedata;	3261	$facedata = Coro::Storable::thaw $facedata;
2505		3262
2506	$facedata->{version} == 2	3263	$facedata->{version} == 2
2507	or cf::cleanup "$path: version mismatch, cannot proceed.";	3264	or cf::cleanup "$path: version mismatch, cannot proceed.";
2508		3265
		3266	# patch in the exptable
		3267	$facedata->{resource}{"res/exp_table"} = {
		3268	type => FT_RSRC,
		3269	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3270	};
		3271	cf::cede_to_tick;
		3272
2509	{	3273	{
2510	my $faces = $facedata->{faceinfo};	3274	my $faces = $facedata->{faceinfo};
2511		3275
2512	while (my ($face, $info) = each %$faces) {	3276	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3277	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3278
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3279	cf::face::set_visibility $idx, $info->{visibility};
		3280	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3281	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3282	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2517	Coro::cede;	3283
		3284	cf::cede_to_tick;
2518	}	3285	}
2519		3286
2520	while (my ($face, $info) = each %$faces) {	3287	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	3288	next unless $info->{smooth};
		3289
2522	my $idx = cf::face::find $face	3290	my $idx = cf::face::find $face
2523	or next;	3291	or next;
		3292
2524	if (my $smooth = cf::face::find $info->{smooth}) {	3293	if (my $smooth = cf::face::find $info->{smooth}) {
		3294	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3295	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	3296	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	3297	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	3298	}
2529	Coro::cede;	3299
		3300	cf::cede_to_tick;
2530	}	3301	}
2531	}	3302	}
2532		3303
2533	{	3304	{
2534	my $anims = $facedata->{animinfo};	3305	my $anims = $facedata->{animinfo};
2535		3306
2536	while (my ($anim, $info) = each %$anims) {	3307	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	3308	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	3309	cf::cede_to_tick;
2539	}	3310	}
2540		3311
2541	cf::anim::invalidate_all; # d'oh	3312	cf::anim::invalidate_all; # d'oh
2542	}	3313	}
2543		3314
		3315	{
		3316	# TODO: for gcfclient pleasure, we should give resources
		3317	# that gcfclient doesn't grok a >10000 face index.
		3318	my $res = $facedata->{resource};
		3319
		3320	while (my ($name, $info) = each %$res) {
		3321	if (defined $info->{type}) {
		3322	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3323	my $data;
		3324
		3325	if ($info->{type} & 1) {
		3326	# prepend meta info
		3327
		3328	my $meta = $enc->encode ({
		3329	name => $name,
		3330	%{ $info->{meta} || {} },
		3331	});
		3332
		3333	$data = pack "(w/a*)*", $meta, $info->{data};
		3334	} else {
		3335	$data = $info->{data};
		3336	}
		3337
		3338	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3339	cf::face::set_type $idx, $info->{type};
		3340	} else {
		3341	$RESOURCE{$name} = $info;
		3342	}
		3343
		3344	cf::cede_to_tick;
		3345	}
		3346	}
		3347
		3348	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3349
2544	1	3350	1
2545	}	3351	}
2546		3352
		3353	cf::global->attach (on_resource_update => sub {
		3354	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3355	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3356
		3357	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3358	my $sound = $soundconf->{compat}[$_]
		3359	or next;
		3360
		3361	my $face = cf::face::find "sound/$sound->[1]";
		3362	cf::sound::set $sound->[0] => $face;
		3363	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3364	}
		3365
		3366	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3367	my $face = cf::face::find "sound/$v";
		3368	cf::sound::set $k => $face;
		3369	}
		3370	}
		3371	});
		3372
		3373	register_exticmd fx_want => sub {
		3374	my ($ns, $want) = @_;
		3375
		3376	while (my ($k, $v) = each %$want) {
		3377	$ns->fx_want ($k, $v);
		3378	}
		3379	};
		3380
		3381	sub load_resource_file($) {
		3382	my $guard = lock_acquire "load_resource_file";
		3383
		3384	my $status = load_resource_file_ $_[0];
		3385	get_slot 0.1, 100;
		3386	cf::arch::commit_load;
		3387
		3388	$status
		3389	}
		3390
2547	sub reload_regions {	3391	sub reload_regions {
		3392	# HACK to clear player env face cache, we need some signal framework
		3393	# for this (global event?)
		3394	%ext::player_env::MUSIC_FACE_CACHE = ();
		3395
2548	load_resource_file "$MAPDIR/regions"	3396	load_resource_file "$MAPDIR/regions"
2549	or die "unable to load regions file\n";	3397	or die "unable to load regions file\n";
		3398
		3399	for (cf::region::list) {
		3400	$_->{match} = qr/$_->{match}/
		3401	if exists $_->{match};
		3402	}
2550	}	3403	}
2551		3404
2552	sub reload_facedata {	3405	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	3406	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	3407	or die "unable to load facedata\n";
…		…
2565	}	3418	}
2566		3419
2567	sub reload_resources {	3420	sub reload_resources {
2568	warn "reloading resource files...\n";	3421	warn "reloading resource files...\n";
2569		3422
2570	reload_regions;
2571	reload_facedata;	3423	reload_facedata;
2572	reload_archetypes;	3424	reload_archetypes;
		3425	reload_regions;
2573	reload_treasures;	3426	reload_treasures;
2574		3427
2575	warn "finished reloading resource files\n";	3428	warn "finished reloading resource files\n";
2576	}	3429	}
2577		3430
2578	sub init {	3431	sub reload_config {
2579	reload_resources;	3432	warn "reloading config file...\n";
2580	}
2581		3433
2582	sub cfg_load {
2583	open my $fh, "<:utf8", "$CONFDIR/config"	3434	open my $fh, "<:utf8", "$CONFDIR/config"
2584	or return;	3435	or return;
2585		3436
2586	local $/;	3437	local $/;
2587	*CFG = YAML::Syck::Load <$fh>;	3438	*CFG = YAML::XS::Load scalar <$fh>;
2588		3439
2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3440	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2590		3441
2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3442	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3443	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3447	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2597	and die "WARNING: m(un)lockall failed: $!\n";	3448	and die "WARNING: m(un)lockall failed: $!\n";
2598	};	3449	};
2599	warn $@ if $@;	3450	warn $@ if $@;
2600	}	3451	}
		3452
		3453	warn "finished reloading resource files\n";
		3454	}
		3455
		3456	sub pidfile() {
		3457	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3458	or die "$PIDFILE: $!";
		3459	flock $fh, &Fcntl::LOCK_EX
		3460	or die "$PIDFILE: flock: $!";
		3461	$fh
		3462	}
		3463
		3464	# make sure only one server instance is running at any one time
		3465	sub atomic {
		3466	my $fh = pidfile;
		3467
		3468	my $pid = <$fh>;
		3469	kill 9, $pid if $pid > 0;
		3470
		3471	seek $fh, 0, 0;
		3472	print $fh $$;
		3473	}
		3474
		3475	sub main_loop {
		3476	warn "EV::loop starting\n";
		3477	if (1) {
		3478	EV::loop;
		3479	}
		3480	warn "EV::loop returned\n";
		3481	goto &main_loop unless $REALLY_UNLOOP;
2601	}	3482	}
2602		3483
2603	sub main {	3484	sub main {
		3485	cf::init_globals; # initialise logging
		3486
		3487	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3488	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3489	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3490	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3491
		3492	cf::init_experience;
		3493	cf::init_anim;
		3494	cf::init_attackmess;
		3495	cf::init_dynamic;
		3496
		3497	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3498
2604	# we must not ever block the main coroutine	3499	# we must not ever block the main coroutine
2605	local $Coro::idle = sub {	3500	local $Coro::idle = sub {
2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3501	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2607	(async {	3502	(async {
2608	Event::one_event;	3503	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3504	EV::loop EV::LOOP_ONESHOT;
2609	})->prio (Coro::PRIO_MAX);	3505	})->prio (Coro::PRIO_MAX);
2610	};	3506	};
2611		3507
2612	cfg_load;	3508	evthread_start IO::AIO::poll_fileno;
		3509
		3510	cf::sync_job {
		3511	reload_resources;
		3512	reload_config;
2613	db_init;	3513	db_init;
		3514
		3515	cf::load_settings;
		3516	cf::load_materials;
		3517	cf::init_uuid;
		3518	cf::init_signals;
		3519	cf::init_commands;
		3520	cf::init_skills;
		3521
		3522	cf::init_beforeplay;
		3523
		3524	atomic;
		3525
2614	load_extensions;	3526	load_extensions;
2615		3527
2616	$TICK_WATCHER->start;	3528	utime time, time, $RUNTIMEFILE;
2617	Event::loop;	3529
		3530	# no (long-running) fork's whatsoever before this point(!)
		3531	use POSIX ();
		3532	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3533
		3534	(pop @POST_INIT)->(0) while @POST_INIT;
		3535	};
		3536
		3537	main_loop;
2618	}	3538	}
2619		3539
2620	#############################################################################	3540	#############################################################################
2621	# initialisation and cleanup	3541	# initialisation and cleanup
2622		3542
2623	# install some emergency cleanup handlers	3543	# install some emergency cleanup handlers
2624	BEGIN {	3544	BEGIN {
		3545	our %SIGWATCHER = ();
2625	for my $signal (qw(INT HUP TERM)) {	3546	for my $signal (qw(INT HUP TERM)) {
2626	Event->signal (	3547	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2627	reentrant => 0,
2628	data => WF_AUTOCANCEL,
2629	signal => $signal,
2630	prio => 0,
2631	cb => sub {
2632	cf::cleanup "SIG$signal";	3548	cf::cleanup "SIG$signal";
2633	},
2634	);	3549	};
		3550	}
		3551	}
		3552
		3553	sub write_runtime_sync {
		3554	# first touch the runtime file to show we are still running:
		3555	# the fsync below can take a very very long time.
		3556
		3557	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3558
		3559	my $guard = cf::lock_acquire "write_runtime";
		3560
		3561	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3562	or return;
		3563
		3564	my $value = $cf::RUNTIME + 90 + 10;
		3565	# 10 is the runtime save interval, for a monotonic clock
		3566	# 60 allows for the watchdog to kill the server.
		3567
		3568	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3569	and return;
		3570
		3571	# always fsync - this file is important
		3572	aio_fsync $fh
		3573	and return;
		3574
		3575	# touch it again to show we are up-to-date
		3576	aio_utime $fh, undef, undef;
		3577
		3578	close $fh
		3579	or return;
		3580
		3581	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3582	and return;
		3583
		3584	warn "runtime file written.\n";
		3585
2635	}	3586	1
		3587	}
		3588
		3589	our $uuid_lock;
		3590	our $uuid_skip;
		3591
		3592	sub write_uuid_sync($) {
		3593	$uuid_skip ||= $_[0];
		3594
		3595	return if $uuid_lock;
		3596	local $uuid_lock = 1;
		3597
		3598	my $uuid = "$LOCALDIR/uuid";
		3599
		3600	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3601	or return;
		3602
		3603	my $value = uuid_seq uuid_cur;
		3604
		3605	unless ($value) {
		3606	warn "cowardly refusing to write zero uuid value!\n";
		3607	return;
		3608	}
		3609
		3610	my $value = uuid_str $value + $uuid_skip;
		3611	$uuid_skip = 0;
		3612
		3613	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3614	and return;
		3615
		3616	# always fsync - this file is important
		3617	aio_fsync $fh
		3618	and return;
		3619
		3620	close $fh
		3621	or return;
		3622
		3623	aio_rename "$uuid~", $uuid
		3624	and return;
		3625
		3626	warn "uuid file written ($value).\n";
		3627
		3628	1
		3629
		3630	}
		3631
		3632	sub write_uuid($$) {
		3633	my ($skip, $sync) = @_;
		3634
		3635	$sync ? write_uuid_sync $skip
		3636	: async { write_uuid_sync $skip };
2636	}	3637	}
2637		3638
2638	sub emergency_save() {	3639	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	3640	my $freeze_guard = cf::freeze_mainloop;
2640		3641
2641	warn "enter emergency perl save\n";	3642	warn "emergency_perl_save: enter\n";
2642		3643
2643	cf::sync_job {	3644	cf::sync_job {
		3645	# this is a trade-off: we want to be very quick here, so
		3646	# save all maps without fsync, and later call a global sync
		3647	# (which in turn might be very very slow)
		3648	local $USE_FSYNC = 0;
		3649
2644	# use a peculiar iteration method to avoid tripping on perl	3650	# use a peculiar iteration method to avoid tripping on perl
2645	# refcount bugs in for. also avoids problems with players	3651	# refcount bugs in for. also avoids problems with players
2646	# and maps saved/destroyed asynchronously.	3652	# and maps saved/destroyed asynchronously.
2647	warn "begin emergency player save\n";	3653	warn "emergency_perl_save: begin player save\n";
2648	for my $login (keys %cf::PLAYER) {	3654	for my $login (keys %cf::PLAYER) {
2649	my $pl = $cf::PLAYER{$login} or next;	3655	my $pl = $cf::PLAYER{$login} or next;
2650	$pl->valid or next;	3656	$pl->valid or next;
		3657	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2651	$pl->save;	3658	$pl->save;
2652	}	3659	}
2653	warn "end emergency player save\n";	3660	warn "emergency_perl_save: end player save\n";
2654		3661
2655	warn "begin emergency map save\n";	3662	warn "emergency_perl_save: begin map save\n";
2656	for my $path (keys %cf::MAP) {	3663	for my $path (keys %cf::MAP) {
2657	my $map = $cf::MAP{$path} or next;	3664	my $map = $cf::MAP{$path} or next;
2658	$map->valid or next;	3665	$map->valid or next;
2659	$map->save;	3666	$map->save;
2660	}	3667	}
2661	warn "end emergency map save\n";	3668	warn "emergency_perl_save: end map save\n";
2662		3669
2663	warn "begin emergency database checkpoint\n";	3670	warn "emergency_perl_save: begin database checkpoint\n";
2664	BDB::db_env_txn_checkpoint $DB_ENV;	3671	BDB::db_env_txn_checkpoint $DB_ENV;
2665	warn "end emergency database checkpoint\n";	3672	warn "emergency_perl_save: end database checkpoint\n";
		3673
		3674	warn "emergency_perl_save: begin write uuid\n";
		3675	write_uuid_sync 1;
		3676	warn "emergency_perl_save: end write uuid\n";
2666	};	3677	};
2667		3678
		3679	warn "emergency_perl_save: starting sync()\n";
		3680	IO::AIO::aio_sync sub {
		3681	warn "emergency_perl_save: finished sync()\n";
		3682	};
		3683
2668	warn "leave emergency perl save\n";	3684	warn "emergency_perl_save: leave\n";
2669	}	3685	}
2670		3686
2671	sub post_cleanup {	3687	sub post_cleanup {
2672	my ($make_core) = @_;	3688	my ($make_core) = @_;
2673		3689
2674	warn Carp::longmess "post_cleanup backtrace"	3690	warn Carp::longmess "post_cleanup backtrace"
2675	if $make_core;	3691	if $make_core;
		3692
		3693	my $fh = pidfile;
		3694	unlink $PIDFILE if <$fh> == $$;
		3695	}
		3696
		3697	# a safer delete_package, copied from Symbol
		3698	sub clear_package($) {
		3699	my $pkg = shift;
		3700
		3701	# expand to full symbol table name if needed
		3702	unless ($pkg =~ /^main::.*::$/) {
		3703	$pkg = "main$pkg" if $pkg =~ /^::/;
		3704	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3705	$pkg .= '::' unless $pkg =~ /::$/;
		3706	}
		3707
		3708	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3709	my $stem_symtab = *{$stem}{HASH};
		3710
		3711	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3712	or return;
		3713
		3714	# clear all symbols
		3715	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3716	for my $name (keys %$leaf_symtab) {
		3717	_gv_clear *{"$pkg$name"};
		3718	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3719	}
		3720	warn "cleared package $pkg\n";#d#
2676	}	3721	}
2677		3722
2678	sub do_reload_perl() {	3723	sub do_reload_perl() {
2679	# can/must only be called in main	3724	# can/must only be called in main
2680	if ($Coro::current != $Coro::main) {	3725	if ($Coro::current != $Coro::main) {
2681	warn "can only reload from main coroutine";	3726	warn "can only reload from main coroutine";
2682	return;	3727	return;
2683	}	3728	}
2684		3729
		3730	return if $RELOAD++;
		3731
		3732	my $t1 = EV::time;
		3733
		3734	while ($RELOAD) {
2685	warn "reloading...";	3735	warn "reloading...";
2686		3736
2687	warn "entering sync_job";	3737	warn "entering sync_job";
2688		3738
2689	cf::sync_job {	3739	cf::sync_job {
2690	cf::write_runtime; # external watchdog should not bark	3740	cf::write_runtime_sync; # external watchdog should not bark
2691	cf::emergency_save;	3741	cf::emergency_save;
2692	cf::write_runtime; # external watchdog should not bark	3742	cf::write_runtime_sync; # external watchdog should not bark
2693		3743
2694	warn "syncing database to disk";	3744	warn "syncing database to disk";
2695	BDB::db_env_txn_checkpoint $DB_ENV;	3745	BDB::db_env_txn_checkpoint $DB_ENV;
2696		3746
2697	# if anything goes wrong in here, we should simply crash as we already saved	3747	# if anything goes wrong in here, we should simply crash as we already saved
2698		3748
2699	warn "cancelling all WF_AUTOCANCEL watchers";
2700	for (Event::all_watchers) {
2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2702	}
2703
2704	warn "flushing outstanding aio requests";	3749	warn "flushing outstanding aio requests";
2705	for (;;) {
2706	BDB::flush;
2707	IO::AIO::flush;
2708	Coro::cede;
2709	last unless IO::AIO::nreqs || BDB::nreqs;	3750	while (IO::AIO::nreqs || BDB::nreqs) {
2710	warn "iterate...";	3751	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2711	}
2712
2713	++$RELOAD;
2714
2715	warn "cancelling all extension coros";
2716	$_->cancel for values %EXT_CORO;
2717	%EXT_CORO = ();
2718
2719	warn "removing commands";
2720	%COMMAND = ();
2721
2722	warn "removing ext commands";
2723	%EXTCMD = ();
2724
2725	warn "unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";
2728
2729	if (my $cb = $pkg->can ("unload")) {
2730	eval {
2731	$cb->($pkg);
2732	1
2733	} or warn "$pkg unloaded, but with errors: $@";
2734	}	3752	}
2735		3753
2736	warn "... nuking $pkg";	3754	warn "cancelling all extension coros";
2737	Symbol::delete_package $pkg;	3755	$_->cancel for values %EXT_CORO;
2738	}	3756	%EXT_CORO = ();
2739		3757
2740	warn "unloading all perl modules loaded from $LIBDIR";	3758	warn "removing commands";
2741	while (my ($k, $v) = each %INC) {	3759	%COMMAND = ();
2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2743		3760
		3761	warn "removing ext/exti commands";
		3762	%EXTCMD = ();
		3763	%EXTICMD = ();
		3764
		3765	warn "unloading/nuking all extensions";
		3766	for my $pkg (@EXTS) {
2744	warn "... unloading $k";	3767	warn "... unloading $pkg";
2745	delete $INC{$k};
2746		3768
2747	$k =~ s/\.pm$//;
2748	$k =~ s/\//::/g;
2749
2750	if (my $cb = $k->can ("unload_module")) {	3769	if (my $cb = $pkg->can ("unload")) {
		3770	eval {
2751	$cb->();	3771	$cb->($pkg);
		3772	1
		3773	} or warn "$pkg unloaded, but with errors: $@";
		3774	}
		3775
		3776	warn "... clearing $pkg";
		3777	clear_package $pkg;
2752	}	3778	}
2753		3779
2754	Symbol::delete_package $k;	3780	warn "unloading all perl modules loaded from $LIBDIR";
		3781	while (my ($k, $v) = each %INC) {
		3782	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3783
		3784	warn "... unloading $k";
		3785	delete $INC{$k};
		3786
		3787	$k =~ s/\.pm$//;
		3788	$k =~ s/\//::/g;
		3789
		3790	if (my $cb = $k->can ("unload_module")) {
		3791	$cb->();
		3792	}
		3793
		3794	clear_package $k;
2755	}	3795	}
2756		3796
2757	warn "getting rid of safe::, as good as possible";	3797	warn "getting rid of safe::, as good as possible";
2758	Symbol::delete_package "safe::$_"	3798	clear_package "safe::$_"
2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3799	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2760		3800
2761	warn "unloading cf.pm \"a bit\"";	3801	warn "unloading cf.pm \"a bit\"";
2762	delete $INC{"cf.pm"};	3802	delete $INC{"cf.pm"};
2763	delete $INC{"cf/pod.pm"};	3803	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2764		3804
2765	# don't, removes xs symbols, too,	3805	# don't, removes xs symbols, too,
2766	# and global variables created in xs	3806	# and global variables created in xs
2767	#Symbol::delete_package __PACKAGE__;	3807	#clear_package __PACKAGE__;
2768		3808
2769	warn "unload completed, starting to reload now";	3809	warn "unload completed, starting to reload now";
2770		3810
2771	warn "reloading cf.pm";	3811	warn "reloading cf.pm";
2772	require cf;	3812	require cf;
2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3813	cf::_connect_to_perl_1;
2774		3814
2775	warn "loading config and database again";	3815	warn "loading config and database again";
2776	cf::cfg_load;	3816	cf::reload_config;
2777		3817
2778	warn "loading extensions";	3818	warn "loading extensions";
2779	cf::load_extensions;	3819	cf::load_extensions;
2780		3820
		3821	if ($REATTACH_ON_RELOAD) {
2781	warn "reattaching attachments to objects/players";	3822	warn "reattaching attachments to objects/players";
2782	_global_reattach; # objects, sockets	3823	_global_reattach; # objects, sockets
2783	warn "reattaching attachments to maps";	3824	warn "reattaching attachments to maps";
2784	reattach $_ for values %MAP;	3825	reattach $_ for values %MAP;
2785	warn "reattaching attachments to players";	3826	warn "reattaching attachments to players";
2786	reattach $_ for values %PLAYER;	3827	reattach $_ for values %PLAYER;
		3828	}
2787		3829
		3830	warn "running post_init jobs";
		3831	(pop @POST_INIT)->(1) while @POST_INIT;
		3832
2788	warn "leaving sync_job";	3833	warn "leaving sync_job";
2789		3834
2790	1	3835	1
2791	} or do {	3836	} or do {
2792	warn $@;	3837	warn $@;
2793	warn "error while reloading, exiting.";	3838	cf::cleanup "error while reloading, exiting.";
2794	exit 1;
2795	};	3839	};
2796		3840
2797	warn "reloaded";	3841	warn "reloaded";
		3842	--$RELOAD;
		3843	}
		3844
		3845	$t1 = EV::time - $t1;
		3846	warn "reload completed in ${t1}s\n";
2798	};	3847	};
2799		3848
2800	our $RELOAD_WATCHER; # used only during reload	3849	our $RELOAD_WATCHER; # used only during reload
2801		3850
2802	sub reload_perl() {	3851	sub reload_perl() {
2803	# doing reload synchronously and two reloads happen back-to-back,	3852	# doing reload synchronously and two reloads happen back-to-back,
2804	# coro crashes during coro_state_free->destroy here.	3853	# coro crashes during coro_state_free->destroy here.
2805		3854
2806	$RELOAD_WATCHER ||= Event->timer (	3855	$RELOAD_WATCHER ||= cf::async {
2807	reentrant => 0,	3856	Coro::AIO::aio_wait cache_extensions;
2808	after => 0,	3857
2809	data => WF_AUTOCANCEL,	3858	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2810	cb => sub {
2811	do_reload_perl;	3859	do_reload_perl;
2812	undef $RELOAD_WATCHER;	3860	undef $RELOAD_WATCHER;
2813	},	3861	};
2814	);	3862	};
2815	}	3863	}
2816		3864
2817	register_command "reload" => sub {	3865	register_command "reload" => sub {
2818	my ($who, $arg) = @_;	3866	my ($who, $arg) = @_;
2819		3867
2820	if ($who->flag (FLAG_WIZ)) {	3868	if ($who->flag (FLAG_WIZ)) {
2821	$who->message ("reloading server.");	3869	$who->message ("reloading server.");
		3870	async {
		3871	$Coro::current->{desc} = "perl_reload";
2822	async { reload_perl };	3872	reload_perl;
		3873	};
2823	}	3874	}
2824	};	3875	};
2825		3876
2826	unshift @INC, $LIBDIR;	3877	unshift @INC, $LIBDIR;
2827		3878
…		…
2829		3880
2830	our @WAIT_FOR_TICK;	3881	our @WAIT_FOR_TICK;
2831	our @WAIT_FOR_TICK_BEGIN;	3882	our @WAIT_FOR_TICK_BEGIN;
2832		3883
2833	sub wait_for_tick {	3884	sub wait_for_tick {
2834	return unless $TICK_WATCHER->is_active;
2835	return if $Coro::current == $Coro::main;	3885	return if tick_inhibit || $Coro::current == $Coro::main;
2836		3886
2837	my $signal = new Coro::Signal;	3887	my $signal = new Coro::Signal;
2838	push @WAIT_FOR_TICK, $signal;	3888	push @WAIT_FOR_TICK, $signal;
2839	$signal->wait;	3889	$signal->wait;
2840	}	3890	}
2841		3891
2842	sub wait_for_tick_begin {	3892	sub wait_for_tick_begin {
2843	return unless $TICK_WATCHER->is_active;
2844	return if $Coro::current == $Coro::main;	3893	return if tick_inhibit || $Coro::current == $Coro::main;
2845		3894
2846	my $signal = new Coro::Signal;	3895	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3896	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3897	$signal->wait;
2849	}	3898	}
2850		3899
2851	$TICK_WATCHER = Event->timer (	3900	sub tick {
2852	reentrant => 0,
2853	parked => 1,
2854	prio => 0,
2855	at => $NEXT_TICK || $TICK,
2856	data => WF_AUTOCANCEL,
2857	cb => sub {
2858	if ($Coro::current != $Coro::main) {	3901	if ($Coro::current != $Coro::main) {
2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3902	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2860	unless ++$bug_warning > 10;	3903	unless ++$bug_warning > 10;
2861	return;	3904	return;
2862	}	3905	}
2863		3906
2864	$NOW = $tick_start = Event::time;
2865
2866	cf::server_tick; # one server iteration	3907	cf::server_tick; # one server iteration
2867		3908
2868	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;
2870
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3909	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2872	$NEXT_RUNTIME_WRITE = $NOW + 10;	3910	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2873	Coro::async_pool {	3911	Coro::async_pool {
		3912	$Coro::current->{desc} = "runtime saver";
2874	write_runtime	3913	write_runtime_sync
2875	or warn "ERROR: unable to write runtime file: $!";	3914	or warn "ERROR: unable to write runtime file: $!";
2876	};
2877	}	3915	};
		3916	}
2878		3917
2879	# my $AFTER = Event::time;
2880	# warn $AFTER - $NOW;#d#
2881
2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3918	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2883	$sig->send;	3919	$sig->send;
2884	}	3920	}
2885	while (my $sig = shift @WAIT_FOR_TICK) {	3921	while (my $sig = shift @WAIT_FOR_TICK) {
2886	$sig->send;	3922	$sig->send;
2887	}	3923	}
2888		3924
2889	$NOW = Event::time;	3925	$LOAD = ($NOW - $TICK_START) / $TICK;
2890
2891	# if we are delayed by four ticks or more, skip them all
2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2893
2894	$TICK_WATCHER->at ($NEXT_TICK);
2895	$TICK_WATCHER->start;
2896
2897	$LOAD = ($NOW - $tick_start) / $TICK;
2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3926	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2899		3927
2900	_post_tick;	3928	if (0) {
2901		3929	if ($NEXT_TICK) {
2902		3930	my $jitter = $TICK_START - $NEXT_TICK;
		3931	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3932	warn "jitter $JITTER\n";#d#
		3933	}
2903	},	3934	}
2904	);	3935	}
2905		3936
2906	{	3937	{
2907	BDB::max_poll_time $TICK * 0.1;	3938	# configure BDB
2908	$BDB_POLL_WATCHER = Event->io (	3939
2909	reentrant => 0,
2910	fd => BDB::poll_fileno,
2911	poll => 'r',
2912	prio => 0,
2913	data => WF_AUTOCANCEL,
2914	cb => \&BDB::poll_cb,
2915	);
2916	BDB::min_parallel 8;	3940	BDB::min_parallel 8;
2917		3941	BDB::max_poll_reqs $TICK * 0.1;
2918	BDB::set_sync_prepare {	3942	$AnyEvent::BDB::WATCHER->priority (1);
2919	my $status;
2920	my $current = $Coro::current;
2921	(
2922	sub {
2923	$status = $!;
2924	$current->ready; undef $current;
2925	},
2926	sub {
2927	Coro::schedule while defined $current;
2928	$! = $status;
2929	},
2930	)
2931	};
2932		3943
2933	unless ($DB_ENV) {	3944	unless ($DB_ENV) {
2934	$DB_ENV = BDB::db_env_create;	3945	$DB_ENV = BDB::db_env_create;
		3946	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3947	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3948	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3949	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3950	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2935		3951
2936	cf::sync_job {	3952	cf::sync_job {
2937	eval {	3953	eval {
2938	BDB::db_env_open	3954	BDB::db_env_open
2939	$DB_ENV,	3955	$DB_ENV,
…		…
2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3957	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3958	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2943	0666;	3959	0666;
2944		3960
2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3961	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2946
2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2948	$DB_ENV->set_lk_detect;
2949	};	3962	};
2950		3963
2951	cf::cleanup "db_env_open(db): $@" if $@;	3964	cf::cleanup "db_env_open(db): $@" if $@;
2952	};	3965	};
2953	}	3966	}
		3967
		3968	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3969	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3970	};
		3971	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3972	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3973	};
		3974	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3975	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3976	};
2954	}	3977	}
2955		3978
2956	{	3979	{
		3980	# configure IO::AIO
		3981
2957	IO::AIO::min_parallel 8;	3982	IO::AIO::min_parallel 8;
2958
2959	undef $Coro::AIO::WATCHER;
2960	IO::AIO::max_poll_time $TICK * 0.1;	3983	IO::AIO::max_poll_time $TICK * 0.1;
2961	$AIO_POLL_WATCHER = Event->io (	3984	undef $AnyEvent::AIO::WATCHER;
2962	reentrant => 0,
2963	data => WF_AUTOCANCEL,
2964	fd => IO::AIO::poll_fileno,
2965	poll => 'r',
2966	prio => 6,
2967	cb => \&IO::AIO::poll_cb,
2968	);
2969	}	3985	}
2970		3986
2971	my $_log_backtrace;	3987	my $_log_backtrace;
2972		3988
2973	sub _log_backtrace {	3989	sub _log_backtrace {
…		…
2976	$msg =~ s/\n//;	3992	$msg =~ s/\n//;
2977		3993
2978	# limit the # of concurrent backtraces	3994	# limit the # of concurrent backtraces
2979	if ($_log_backtrace < 2) {	3995	if ($_log_backtrace < 2) {
2980	++$_log_backtrace;	3996	++$_log_backtrace;
		3997	my $perl_bt = Carp::longmess $msg;
2981	async {	3998	async {
		3999	$Coro::current->{desc} = "abt $msg";
		4000
2982	my @bt = fork_call {	4001	my @bt = fork_call {
2983	@addr = map { sprintf "%x", $_ } @addr;	4002	@addr = map { sprintf "%x", $_ } @addr;
2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2986	or die "addr2line: $!";	4005	or die "addr2line: $!";
…		…
2994	}	4013	}
2995		4014
2996	@funcs	4015	@funcs
2997	};	4016	};
2998		4017
2999	LOG llevInfo, "[ABT] $msg\n";	4018	LOG llevInfo, "[ABT] $perl_bt\n";
		4019	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3000	LOG llevInfo, "[ABT] $_\n" for @bt;	4020	LOG llevInfo, "[ABT] $_\n" for @bt;
3001	--$_log_backtrace;	4021	--$_log_backtrace;
3002	};	4022	};
3003	} else {	4023	} else {
3004	LOG llevInfo, "[ABT] $msg\n";	4024	LOG llevInfo, "[ABT] $msg\n";
3005	LOG llevInfo, "[ABT] [suppressed]\n";	4025	LOG llevInfo, "[ABT] [suppressed]\n";
3006	}	4026	}
3007	}	4027	}
3008		4028
3009	# load additional modules	4029	# load additional modules
3010	use cf::pod;	4030	require "cf/$_.pm" for @EXTRA_MODULES;
		4031	cf::_connect_to_perl_2;
3011		4032
3012	END { cf::emergency_save }	4033	END { cf::emergency_save }
3013		4034
3014	1	4035	1
3015		4036

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