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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.253 by root, Wed Apr 18 17:32:07 2007 UTC vs.
Revision 1.488 by root, Wed Oct 21 00:44:39 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
14		37
		38	use Guard ();
15	use Coro 3.61 ();	39	use Coro ();
16	use Coro::State;	40	use Coro::State;
17	use Coro::Handle;	41	use Coro::Handle;
		42	use Coro::EV;
18	use Coro::Event;	43	use Coro::AnyEvent;
19	use Coro::Timer;	44	use Coro::Timer;
20	use Coro::Signal;	45	use Coro::Signal;
21	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
22	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
23	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
24		53
		54	use JSON::XS 2.01 ();
25	use BDB ();	55	use BDB ();
26	use Data::Dumper;	56	use Data::Dumper;
27	use Digest::MD5;	57	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
95	binmode STDOUT;	148	binmode STDOUT;
96	binmode STDERR;	149	binmode STDERR;
97		150
98	# read virtual server time, if available	151	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
103	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
104		159
105	mkdir $_	160	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		162
108	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
109		164
110	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		177
112	#############################################################################	178	#############################################################################
113		179
114	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
115		181
…		…
139		205
140	=item $cf::TICK	206	=item $cf::TICK
141		207
142	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
143		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
144	=item %cf::CFG	220	=item %cf::CFG
145		221
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	223	from wherever your confdir points to.
148		224
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		226
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
155	=back	243	=back
156		244
157	=cut	245	=cut
158		246
159	BEGIN {	247	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	248	my $msg = join "", @_;
162		249
163	$msg .= "\n"	250	$msg .= "\n"
164	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
165		252
166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		254
168	utf8::encode $msg;
169	LOG llevError, $msg;	255	LOG llevError, $msg;
170	};	256	};
171	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
172		271
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		279
180	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	281	# within the Safe compartment.
182	for my $pkg (qw(	282	for my $pkg (qw(
183	cf::global cf::attachable	283	cf::global cf::attachable
184	cf::object cf::object::player	284	cf::object cf::object::player
185	cf::client cf::player	285	cf::client cf::player
186	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
187	cf::map cf::party cf::region	288	cf::party cf::region
188	)) {	289	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	291	}
192		292
193	$Event::DIED = sub {	293	$EV::DIED = sub {
194	warn "error in event callback: @_";	294	warn "error in event callback: @_";
195	};	295	};
		296
		297	#############################################################################
196		298
197	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
198		300
199	=over 4	301	=over 4
200		302
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	322	$d
221	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
222	}	324	}
223		325
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
227		327
228	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
229		329
230	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
231		331
232	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
233		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
249		373
250	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
251		375
252	=cut	376	=cut
253		377
254	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
255		379
256	sub lock_wait($) {	380	sub lock_wait($) {
257	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	382	}
265		383
266	sub lock_acquire($) {	384	sub lock_acquire($) {
267	my ($key) = @_;	385	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	386	}
279		387
280	sub lock_active($) {	388	sub lock_active($) {
281	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	390	}
285		391
286	sub freeze_mainloop {	392	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
288		394
289	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
291	};	456	}
292	$TICK_WATCHER->stop;	457	};
293	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
294	}	471	}
295		472
296	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
297		474
298	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		480
304	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
305		482
306	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
307		484
308	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
311		489
312	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
315	fast or be very important.	493	fast or be very important.
…		…
318		496
319	sub sync_job(&) {	497	sub sync_job(&) {
320	my ($job) = @_;	498	my ($job) = @_;
321		499
322	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
323	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
325		505
326	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	507
328	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
329		509
330	my $busy = 1;	510	my $busy = 1;
331	my @res;	511	my @res;
332		512
333	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	515	@res = eval { $job->() };
335	warn $@ if $@;	516	warn $@ if $@;
336	undef $busy;	517	undef $busy;
337	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
338		519
339	while ($busy) {	520	while ($busy) {
340	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
341	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
342		531
343	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
344	} else {	533	} else {
345	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
346		535
…		…
366	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
367		556
368	$coro	557	$coro
369	}	558	}
370		559
371	sub write_runtime {	560	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		561
374	my $runtime = "$LOCALDIR/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
375		566
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
377	or return;
378		568
379	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		571
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
384	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
385		575
386	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	577	reset_signals;
388	and return;	578	&$cb
		579	}, @args;
389		580
390	close $fh	581	wantarray ? @res : $res[-1]
391	or return;	582	}
392		583
393	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
394	and return;
395		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
396	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
397	}	736	}
398		737
399	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
400		739
401	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		752
414	#############################################################################	753	#############################################################################
415		754
416	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
417		756
418	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
421		760
422	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	763	Deliantra).
425		764
426	=over 4	765	=over 4
427		766
428	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
429		768
…		…
473	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
474		813
475	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
477		816
478	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
480		819
481	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
482		821
483	=over 4	822	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
593		932
594	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		937
599	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	939	my $pkg = shift @arg;
601		940
602	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
632	}	971	}
633		972
634	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
635	} else {	974	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	976	}
638		977
639	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
640	}	979	}
641		980
…		…
643	if (ref $_[0]) {	982	if (ref $_[0]) {
644	_object_attach @_;	983	_object_attach @_;
645	} else {	984	} else {
646	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
647	}	986	}
		987	_recalc_want;
648	};	988	};
649		989
650	# all those should be optimised	990	# all those should be optimised
651	sub cf::attachable::detach {	991	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
656	reattach ($obj);	996	reattach ($obj);
657	} else {	997	} else {
658	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
659	}	999	}
		1000	_recalc_want;
660	};	1001	};
661		1002
662	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
664		1005
…		…
679	";	1020	";
680	die if $@;	1021	die if $@;
681	}	1022	}
682		1023
683	our $override;	1024	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1026
686	sub override {	1027	sub override {
687	$override = 1;	1028	$override = 1;
688	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
689	}	1030	}
690		1031
691	sub do_invoke {	1032	sub do_invoke {
692	my $event = shift;	1033	my $event = shift;
693	my $callbacks = shift;	1034	my $callbacks = shift;
694		1035
695	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
696		1037
697	local $override;	1038	local $override;
698		1039
699	for (@$callbacks) {	1040	for (@$callbacks) {
700	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
709	}	1050	}
710		1051
711	0	1052	0
712	}	1053	}
713		1054
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1056
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1058
718	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
719		1060
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1064
724	=back	1065	=back
725		1066
726	=cut	1067	=cut
727		1068
728	#############################################################################	1069	#############################################################################
729	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
730		1113
731	sub reattach {	1114	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1116	my ($obj) = @_;
734		1117
		1118	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1120
737	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
738		1122
739	@$registry = ();	1123	@$registry = ();
740		1124
…		…
755	cf::attachable->attach (	1139	cf::attachable->attach (
756	prio => -1000000,	1140	prio => -1000000,
757	on_instantiate => sub {	1141	on_instantiate => sub {
758	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
759		1143
760	$data = from_json $data;	1144	$data = decode_json $data;
761		1145
762	for (@$data) {	1146	for (@$data) {
763	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
764		1148
765	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1165	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
783		1167
784	sync_job {	1168	sync_job {
785	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
788		1173
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
793	close $fh;	1181	aio_close $fh;
794		1182
795	if (@$objs) {	1183	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
801	close $fh;	1192	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
803	}	1194	}
804	} else {	1195	} else {
805	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
806	}	1197	}
807		1198
808	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1203	} else {
810	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
811	}	1205	}
812	} else {	1206	} else {
813	aio_unlink $filename;	1207	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
815	}	1209	}
816	}	1210	};
817	}	1211	}
818		1212
819	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
821		1215
…		…
833	or return;	1227	or return;
834		1228
835	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
837	or return;	1231	or return;
		1232
838	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
839	}	1235	}
840		1236
		1237	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
843	return ($data, $av);	1241	($data, $av)
844	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
845		1249
846	#############################################################################	1250	#############################################################################
847	# command handling &c	1251	# command handling &c
848		1252
849	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1267	}
864		1268
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1270
867	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
868		1276
869	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
870	called.	1278	called.
871		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
872	=cut	1291	=cut
873		1292
874	sub register_extcmd {	1293	sub register_extcmd {
875	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
876		1295
877	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
878	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
879		1306
880	cf::player->attach (	1307	cf::player->attach (
881	on_command => sub {	1308	on_command => sub {
882	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
883		1310
…		…
891	cf::override;	1318	cf::override;
892	},	1319	},
893	on_extcmd => sub {	1320	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
895		1322
896	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1324
898	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
904	} else {	1340	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1342	}
907		1343
908	cf::override;	1344	cf::override;
909	},	1345	},
910	);	1346	);
911		1347
		1348	# "readahead" all extensions
912	sub load_extension {	1349	sub cache_extensions {
913	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
914		1351
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1355	}
940	die $@;
941	}	1356	};
942		1357
943	push @EXTS, $pkg;	1358	$grp
944	}	1359	}
945		1360
946	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
947	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1366	next unless -r $path;
949	eval {	1367
950	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
951	1	1424	}
952	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
953	}	1430	};
954	}	1431	}
955		1432
956	#############################################################################	1433	#############################################################################
957		1434
		1435	=back
		1436
958	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
959		1438
960	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
961		1440
962	=cut	1441	=cut
963		1442
964	package cf::player;	1443	package cf::player;
965		1444
966	use Coro::AIO;	1445	use Coro::AIO;
967		1446
968	=head3 cf::player	1447	=head3 cf::player
969		1448
970	=over 4	1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
971		1464
972	=item cf::player::find $login	1465	=item cf::player::find $login
973		1466
974	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
975		1468
…		…
994		1487
995	sub exists($) {	1488	sub exists($) {
996	my ($login) = @_;	1489	my ($login) = @_;
997		1490
998	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1000	}	1493	}
1001		1494
1002	sub find($) {	1495	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1497	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1508
1016	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1019	}	1518	}
1020	}	1519	}
1021	}	1520	}
1022		1521
…		…
1031	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1032		1531
1033	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1035		1534
		1535	cf::get_slot 0.01;
		1536
1036	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1037	Coro::cede;	1538	cf::cede_to_tick;
1038	}	1539	}
1039		1540
1040	sub new($) {	1541	sub new($) {
1041	my ($login) = @_;	1542	my ($login) = @_;
1042		1543
…		…
1048	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1049		1550
1050	$self	1551	$self
1051	}	1552	}
1052		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1053	=item $pl->quit_character	1564	=item $pl->quit_character
1054		1565
1055	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1057		1568
…		…
1061	my ($pl) = @_;	1572	my ($pl) = @_;
1062		1573
1063	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1064		1575
1065	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1578
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1072		1585
1073	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1623	or return [];
1111		1624
1112	my @logins;	1625	my @logins;
1113		1626
1114	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1118		1637
1119	utf8::decode $login;	1638	utf8::decode $login;
1120	push @logins, $login;	1639	push @logins, $login;
1121	}	1640	}
1122		1641
…		…
1149	}	1668	}
1150		1669
1151	\@paths	1670	\@paths
1152	}	1671	}
1153		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1154	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1155		1678
1156	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1157		1680
1158	=cut	1681	=cut
1159		1682
1160	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1162		1685
1163	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1687	}
1167		1688
1168	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1169		1690
1170	Sends an ext event to the client.	1691	Sends an ext event to the client.
1171		1692
1172	=cut	1693	=cut
1173		1694
1174	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1176		1697
1177	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1178	}	1699	}
1179		1700
1180	=head3 cf::region	1701	=head3 cf::region
1181		1702
1182	=over 4	1703	=over 4
…		…
1185		1706
1186	package cf::region;	1707	package cf::region;
1187		1708
1188	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1189		1710
1190	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1191		1712
1192	=cut	1713	=cut
1193		1714
1194	sub find_by_path($) {	1715	sub find_by_path($) {
1195	my ($path) = @_;	1716	my ($path) = @_;
1196		1717
1197	my ($match, $specificity);	1718	my ($match, $specificity);
1198		1719
1199	for my $region (list) {	1720	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1203	}	1724	}
1204	}	1725	}
1205		1726
…		…
1226	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1228		1749
1229	sub generate_random_map {	1750	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1231	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1756	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1270		1794
1271	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1272	local $self->{path};	1796	local $self->{path};
1273	local $self->{load_path};	1797	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1798
1277	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1278	}	1800	}
1279		1801
1280	sub normalise {	1802	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1328	return $self;	1850	return $self;
1329	}	1851	}
1330	}	1852	}
1331		1853
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1855	()
1334	}	1856	}
1335		1857
1336	sub init {	1858	sub init {
1337	my ($self) = @_;	1859	my ($self) = @_;
…		…
1352		1874
1353	# the original (read-only) location	1875	# the original (read-only) location
1354	sub load_path {	1876	sub load_path {
1355	my ($self) = @_;	1877	my ($self) = @_;
1356		1878
1357	"$MAPDIR($self->{path}"	1879	"$MAPDIR/$self->{path}.map"
1358	}	1880	}
1359		1881
1360	# the temporary/swap location	1882	# the temporary/swap location
1361	sub save_path {	1883	sub save_path {
1362	my ($self) = @_;	1884	my ($self) = @_;
1363		1885
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path"	1887	"$TMPDIR/$path.map"
1366	}	1888	}
1367		1889
1368	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1369	sub uniq_path {	1891	sub uniq_path {
1370	my ($self) = @_;	1892	my ($self) = @_;
1371		1893
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1374	}	1896	}
1375		1897
1376	# and all this just because we cannot iterate over	1898	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1899	my ($self) = @_;
1380		1900
1381	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1383	}	1904	}
1384		1905
1385	sub unlink_save {	1906	sub unlink_save {
1386	my ($self) = @_;	1907	my ($self) = @_;
1387		1908
…		…
1392		1913
1393	sub load_header_from($) {	1914	sub load_header_from($) {
1394	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1395		1916
1396	utf8::encode $path;	1917	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1402		1926
1403	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1404		1928
1405	1	1929	1
1406	}	1930	}
…		…
1445	$self->load_header_orig	1969	$self->load_header_orig
1446	or return;	1970	or return;
1447	$self->prepare_orig;	1971	$self->prepare_orig;
1448	}	1972	}
1449		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1450	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1978	unless $self->default_region;
1452		1979
1453	1	1980	1
1454	}	1981	}
…		…
1457	sub find {	1984	sub find {
1458	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1459		1986
1460	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1461		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1991
1464	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1467	or return;	1994	or return;
1468		1995
1469	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1470		1997
1471	$map->load_header	1998	$map->load_header
1472	or return;	1999	or return;
1473		2000
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1477	$map->reset;	2006	$map->reset;
1478	undef $guard;
1479	return find $path;	2007	return find $path;
1480	}	2008	}
1481		2009
1482	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1483	}	2011	}
…		…
1490	my ($self) = @_;	2018	my ($self) = @_;
1491		2019
1492	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1493		2021
1494	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1495	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1496		2026
		2027	return unless $self->valid;
1497	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1498		2029
1499	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1500		2031
1501	$self->alloc;	2032	$self->alloc;
1502		2033
1503	$self->pre_load;	2034	$self->pre_load;
1504	Coro::cede;	2035	cf::cede_to_tick;
1505		2036
1506	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1507	or return;	2040	or return;
1508		2041
1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1510	if delete $self->{load_original};	2043	if delete $self->{load_original};
1511		2044
1512	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1513	utf8::encode $uniq;	2046	utf8::encode $uniq;
1514	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1515	$self->clear_unique_items;	2049	$self->clear_unique_items;
1516	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1517	}	2053	}
1518	}	2054	}
1519		2055
1520	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1521	# now do the right thing for maps	2059	# now do the right thing for maps
1522	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1523	Coro::cede;
1524
1525	unless ($self->{deny_activate}) {
1526	$self->decay_objects;
1527	$self->fix_auto_apply;
1528	$self->update_buttons;
1529	Coro::cede;
1530	$self->set_darkness_map;
1531	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	2062	unless $self->difficulty;
1533	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1534	$self->activate;	2070	$self->activate;
1535	Coro::cede;	2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1536	}	2077	}
1537		2078
1538	$self->post_load;	2079	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	2080	}
1543		2081
1544	sub customise_for {	2082	sub customise_for {
1545	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1546		2084
1547	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	2086	if $self->per_player;
1549		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1550	$self	2091	$self
1551	}	2092	}
1552		2093
1553	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	2095	sub load_neighbours {
1555	my ($map) = @_;	2096	my ($map) = @_;
1556		2097
1557	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1558		2099
1559	for (0 .. 3) {	2100	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1561	or next;	2102	or next;
1562	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1563	or next;	2104	or next;
1564	$neigh->load;	2105	$neigh->load;
1565		2106
		2107	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	2110	}
1569		2111
1570	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1572	or next;	2115	or next;
1573	$neigh->load;	2116	$neigh->load;
1574	}	2117	}
1575	}	2118	}
1576		2119
…		…
1581	}	2124	}
1582		2125
1583	sub do_load_sync {	2126	sub do_load_sync {
1584	my ($map) = @_;	2127	my ($map) = @_;
1585		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1586	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1587	}	2133	}
1588		2134
1589	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1590	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1591		2137
1592	sub find_async {	2138	sub find_async {
1593	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1594		2140
1595	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1596		2142
1597	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1598	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1599	}	2145	}
1600		2146
1601	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1602	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1603	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1605	my $map = find $path	2154	if (my $map = find $k) {
1606	or next;
1607	$map->load;	2155	$map->load if $v;
		2156	}
1608		2157
1609	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1610	}	2159	}
1611	}	2160	}
1612	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1613	};	2162	};
1614	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1617	}	2166	}
1618		2167
1619	sub save {	2168	sub save {
1620	my ($self) = @_;	2169	my ($self) = @_;
1621		2170
1622	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1623		2172
1624	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1625		2174
1626	return unless $self->dirty;	2175	return unless $self->dirty;
1627		2176
…		…
1633	return if $self->{deny_save};	2182	return if $self->{deny_save};
1634		2183
1635	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1636		2185
1637	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1638	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1639	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1640		2192
1641	if ($uniq) {	2193	if ($uniq) {
1642	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1643	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1644	} else {	2196	} else {
…		…
1650	my ($self) = @_;	2202	my ($self) = @_;
1651		2203
1652	# save first because save cedes	2204	# save first because save cedes
1653	$self->save;	2205	$self->save;
1654		2206
1655	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1656		2208
1657	return if $self->players;	2209	return if $self->players;
1658	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1659	return if $self->{deny_save};	2211	return if $self->{deny_save};
1660		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1661	$self->clear;	2217	$self->clear;
1662	$self->in_memory (cf::MAP_SWAPPED);
1663	}	2218	}
1664		2219
1665	sub reset_at {	2220	sub reset_at {
1666	my ($self) = @_;	2221	my ($self) = @_;
1667		2222
1668	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1670	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1671		2225
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2228
…		…
1685	my ($self) = @_;	2239	my ($self) = @_;
1686		2240
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2242
1689	return if $self->players;	2243	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2244
1692	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1693		2246
1694	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1695		2248
1696	# need to save uniques path	2249	# need to save uniques path
1697	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1701	if $uniq;	2254	if $uniq;
1702	}	2255	}
1703		2256
1704	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1705		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1706	$self->clear;	2261	$self->clear;
1707
1708	$_->clear_links_to ($self) for values %cf::MAP;
1709		2262
1710	$self->unlink_save;	2263	$self->unlink_save;
1711	$self->destroy;	2264	$self->destroy;
1712	}	2265	}
1713		2266
1714	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1715		2268
1716	sub nuke {	2269	sub nuke {
1717	my ($self) = @_;	2270	my ($self) = @_;
1718		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1719	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1720		2276
1721	$self->unlink_save;	2277	$self->unlink_save;
1722		2278
1723	bless $self, "cf::map";	2279	bless $self, "cf::map";
1724	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1725	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1726	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1727	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1728		2284
1729	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1730		2287
1731	$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	]
1732	}	2325	}
1733		2326
1734	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1735		2328
1736	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2330	instantiated unique items. May block.
1738		2331
1739	=cut	2332	=cut
1740		2333
1741	sub unique_maps() {	2334	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2335	[
1743	or return;	2336	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2337	utf8::decode $_;
1749	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1750	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1751		2340	? ()
1752	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2343	]
1754
1755	\@paths
1756	}	2344	}
1757
1758	package cf;
1759		2345
1760	=back	2346	=back
1761		2347
1762	=head3 cf::object	2348	=head3 cf::object
1763		2349
…		…
1767		2353
1768	=over 4	2354	=over 4
1769		2355
1770	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1771		2357
1772	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1773		2360
1774	=cut	2361	=cut
1775		2362
1776	sub inv_recursive_;	2363	sub inv_recursive_;
1777	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1780		2367
1781	sub inv_recursive {	2368	sub inv_recursive {
1782	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1783	}	2370	}
1784		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1785	package cf;	2400	package cf;
1786		2401
1787	=back	2402	=back
1788		2403
1789	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1795	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1796	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1797	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1798		2413
1799	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1800		2429
1801	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1802	# with dialog boxes.	2431	# with dialog boxes.
1803	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1804	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1806		2435
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2437
1809	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1811	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1814	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1815	}	2463	}
1816		2464
1817	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1818		2466
1819	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1832		2480
1833	=item $player_object->enter_link	2481	=item $player_object->enter_link
1834		2482
1835	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1836		2484
1837	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1838	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1839		2489
1840	Will never block.	2490	Will never block.
1841		2491
1842	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1843		2493
…		…
1866	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1867		2517
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2519
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1872		2522
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2524	}
1875		2525
1876	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1878		2530
1879	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1880		2532
1881	unless ($map) {	2533	unless ($map) {
1882	# restore original map position	2534	# restore original map position
…		…
1896	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1899		2551
1900	$map->load;	2552	$map->load;
1901	$map->load_diag;	2553	$map->load_neighbours;
1902		2554
1903	return unless $self->contr->active;	2555	return unless $self->contr->active;
1904	$self->activate_recursive;
1905		2556
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2558	$self->enter_map ($map, $x, $y);
1908	}
1909		2559
1910	cf::player->attach (	2560	# only activate afterwards, to support waiting in hooks
1911	on_logout => sub {	2561	$self->activate_recursive;
1912	my ($pl) = @_;	2562	}
1913		2563
1914	# abort map switching before logout	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1915	if ($pl->ob->{_link_pos}) {
1916	cf::sync_job {
1917	$pl->ob->leave_link
1918	};
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2565
1924	# try to abort aborted map switching on player login :)	2566	Moves the player to the given map-path and coordinates by first freezing
1925	# should happen only on crashes	2567	her, loading and preparing them map, calling the provided $check callback
1926	if ($pl->ob->{_link_pos}) {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1927	$pl->ob->enter_link;	2569	the new (success) or old (failed) map position. In either case, $done will
1928	(async {	2570	be called at the end of this process.
1929	$pl->ob->reply (undef,
1930	"There was an internal problem at your last logout, "
1931	. "the server will try to bring you to your intended destination in a second.",
1932	cf::NDI_RED);
1933	# we need this sleep as the login has a concurrent enter_exit running
1934	# and this sleep increases chances of the player not ending up in scorn
1935	Coro::Timer::sleep 1;
1936	$pl->ob->leave_link;
1937	})->prio (2);
1938	}
1939	},
1940	);
1941		2571
1942	=item $player_object->goto ($path, $x, $y)	2572	Note that $check will be called with a potentially non-loaded map, so if
		2573	it needs a loaded map it has to call C<< ->load >>.
1943		2574
1944	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1945		2578
1946	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2584
1949	$self->enter_link;	2585	$self->enter_link;
1950		2586
1951	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1952	my $map = eval {	2609	my $map = eval {
1953	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1955	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2625	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1960	})->prio (1);	2633	})->prio (1);
1961	}	2634	}
1962		2635
1963	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1964		2637
…		…
1984	}	2657	}
1985		2658
1986	sub prepare_random_map {	2659	sub prepare_random_map {
1987	my ($exit) = @_;	2660	my ($exit) = @_;
1988		2661
1989	my $guard = cf::lock_acquire "exit_prepare:$exit";
1990
1991	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1992	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1993	# that depends on the exit object	2664	# that depends on the exit object
1994		2665
1995	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1997	if ($exit->map) {	2668	if ($exit->map) {
1998	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
1999	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
2000	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
2001	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
2002	}	2675	}
2003		2676
2004	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
2005		2678
2006	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2007	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
2008	my $meta = "$RANDOMDIR/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
2009		2682
2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2011	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
2012	undef $fh;	2685	undef $fh;
2013	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
2014		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
2015	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
2016	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
2017	}	2694	}
2018	}	2695	}
2019		2696
2020	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
2021	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
2022		2699
2023	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
2024		2701
2025	if ($exit->slaying eq "/!") {
2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
2027	# the problem is that $exit might not survive long enough
2028	# so it needs to be done right now, right here
2029	cf::sync_job { prepare_random_map $exit };
2030	}
2031
2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2033	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;
2035
2036	$self->enter_link;	2702	$self->enter_link;
2037		2703
2038	(async {	2704	(async {
2039	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
2040	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
2041	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
2042		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
2043	1;	2728	1
2044	}) {	2729	}) {
2045	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
2046	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
2047	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
2048	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
2049		2734
2050	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
…		…
2069		2754
2070	utf8::encode $text;	2755	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2757	}
2073		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/shopinfo" => {
		2789	id => "infobox",
		2790	title => "Shop Info",
		2791	reply => undef,
		2792	tooltip => "What your bargaining skill tells you about the shop",
		2793	},
		2794	"c/book" => {
		2795	id => "infobox",
		2796	title => "Book",
		2797	reply => undef,
		2798	tooltip => "The contents of a note or book",
		2799	},
		2800	"c/lookat" => {
		2801	id => "infobox",
		2802	title => "Look",
		2803	reply => undef,
		2804	tooltip => "What you saw there",
		2805	},
		2806	"c/who" => {
		2807	id => "infobox",
		2808	title => "Players",
		2809	reply => undef,
		2810	tooltip => "Shows players who are currently online",
		2811	},
		2812	"c/body" => {
		2813	id => "infobox",
		2814	title => "Body Parts",
		2815	reply => undef,
		2816	tooltip => "Shows which body parts you posess and are available",
		2817	},
		2818	"c/statistics" => {
		2819	id => "infobox",
		2820	title => "Statistics",
		2821	reply => undef,
		2822	tooltip => "Shows your primary statistics",
		2823	},
		2824	"c/skills" => {
		2825	id => "infobox",
		2826	title => "Skills",
		2827	reply => undef,
		2828	tooltip => "Shows your experience per skill and item power",
		2829	},
		2830	"c/shopitems" => {
		2831	id => "infobox",
		2832	title => "Shop Items",
		2833	reply => undef,
		2834	tooltip => "Shows the items currently for sale in this shop",
		2835	},
		2836	"c/resistances" => {
		2837	id => "infobox",
		2838	title => "Resistances",
		2839	reply => undef,
		2840	tooltip => "Shows your resistances",
		2841	},
		2842	"c/pets" => {
		2843	id => "infobox",
		2844	title => "Pets",
		2845	reply => undef,
		2846	tooltip => "Shows information abotu your pets/a specific pet",
		2847	},
		2848	"c/perceiveself" => {
		2849	id => "infobox",
		2850	title => "Perceive Self",
		2851	reply => undef,
		2852	tooltip => "You gained detailed knowledge about yourself",
		2853	},
		2854	"c/uptime" => {
		2855	id => "infobox",
		2856	title => "Uptime",
		2857	reply => undef,
		2858	tooltip => "How long the server has been running since last restart",
		2859	},
		2860	"c/mapinfo" => {
		2861	id => "infobox",
		2862	title => "Map Info",
		2863	reply => undef,
		2864	tooltip => "Information related to the maps",
		2865	},
		2866	"c/party" => {
		2867	id => "party",
		2868	title => "Party",
		2869	reply => "gsay ",
		2870	tooltip => "Messages and chat related to your party",
		2871	},
		2872	"c/death" => {
		2873	id => "death",
		2874	title => "Death",
		2875	reply => undef,
		2876	tooltip => "Reason for and more info about your most recent death",
		2877	},
		2878	"c/say" => $SAY_CHANNEL,
		2879	"c/chat" => $CHAT_CHANNEL,
		2880	);
		2881
		2882	sub cf::client::send_msg {
		2883	my ($self, $channel, $msg, $color, @extra) = @_;
		2884
		2885	$msg = $self->pl->expand_cfpod ($msg)
		2886	unless $color & cf::NDI_VERBATIM;
		2887
		2888	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2889
		2890	# check predefined channels, for the benefit of C
		2891	if ($CHANNEL{$channel}) {
		2892	$channel = $CHANNEL{$channel};
		2893
		2894	$self->ext_msg (channel_info => $channel);
		2895	$channel = $channel->{id};
		2896
		2897	} elsif (ref $channel) {
		2898	# send meta info to client, if not yet sent
		2899	unless (exists $self->{channel}{$channel->{id}}) {
		2900	$self->{channel}{$channel->{id}} = $channel;
		2901	$self->ext_msg (channel_info => $channel);
		2902	}
		2903
		2904	$channel = $channel->{id};
		2905	}
		2906
		2907	return unless @extra || length $msg;
		2908
		2909	# default colour, mask it out
		2910	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2911	if $color & cf::NDI_DEF;
		2912
		2913	my $pkt = "msg "
		2914	. $self->{json_coder}->encode (
		2915	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2916	);
		2917
		2918	# try lzf for large packets
		2919	$pkt = "lzf " . Compress::LZF::compress $pkt
		2920	if 1024 <= length $pkt and $self->{can_lzf};
		2921
		2922	# split very large packets
		2923	if (8192 < length $pkt and $self->{can_lzf}) {
		2924	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2925	$pkt = "frag";
		2926	}
		2927
		2928	$self->send_packet ($pkt);
		2929	}
		2930
2074	=item $client->ext_event ($type, %msg)	2931	=item $client->ext_msg ($type, @msg)
2075		2932
2076	Sends an exti event to the client.	2933	Sends an ext event to the client.
2077		2934
2078	=cut	2935	=cut
2079		2936
2080	sub cf::client::ext_event($$%) {	2937	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	2938	my ($self, $type, @msg) = @_;
2082		2939
		2940	if ($self->extcmd == 2) {
		2941	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2942	} elsif ($self->extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	2943	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	2944	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2945	}
		2946	}
		2947
		2948	=item $client->ext_reply ($msgid, @msg)
		2949
		2950	Sends an ext reply to the client.
		2951
		2952	=cut
		2953
		2954	sub cf::client::ext_reply($$@) {
		2955	my ($self, $id, @msg) = @_;
		2956
		2957	if ($self->extcmd == 2) {
		2958	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2959	} elsif ($self->extcmd == 1) {
		2960	#TODO: version 1, remove
		2961	unshift @msg, msgtype => "reply", msgid => $id;
		2962	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2963	}
2085	}	2964	}
2086		2965
2087	=item $success = $client->query ($flags, "text", \&cb)	2966	=item $success = $client->query ($flags, "text", \&cb)
2088		2967
2089	Queues a query to the client, calling the given callback with	2968	Queues a query to the client, calling the given callback with
2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2969	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2970	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		2971
2093	Queries can fail, so check the return code. Or don't, as queries will become	2972	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	2973	become reliable at some point in the future.
2095		2974
2096	=cut	2975	=cut
2097		2976
2098	sub cf::client::query {	2977	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	2978	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	2986	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2987	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		2988
2110	$self->send_packet ($self->{query_queue}[0][0])	2989	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	2990	if @{ $self->{query_queue} } == 1;
		2991
		2992	1
2112	}	2993	}
2113		2994
2114	cf::client->attach (	2995	cf::client->attach (
		2996	on_connect => sub {
		2997	my ($ns) = @_;
		2998
		2999	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3000	},
2115	on_reply => sub {	3001	on_reply => sub {
2116	my ($ns, $msg) = @_;	3002	my ($ns, $msg) = @_;
2117		3003
2118	# this weird shuffling is so that direct followup queries	3004	# this weird shuffling is so that direct followup queries
2119	# get handled first	3005	# get handled first
…		…
2131	} else {	3017	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	3019	}
2134	}	3020	}
2135	},	3021	},
		3022	on_exticmd => sub {
		3023	my ($ns, $buf) = @_;
		3024
		3025	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3026
		3027	if (ref $msg) {
		3028	my ($type, $reply, @payload) =
		3029	"ARRAY" eq ref $msg
		3030	? @$msg
		3031	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3032
		3033	my @reply;
		3034
		3035	if (my $cb = $EXTICMD{$type}) {
		3036	@reply = $cb->($ns, @payload);
		3037	}
		3038
		3039	$ns->ext_reply ($reply, @reply)
		3040	if $reply;
		3041
		3042	} else {
		3043	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3044	}
		3045
		3046	cf::override;
		3047	},
2136	);	3048	);
2137		3049
2138	=item $client->async (\&cb)	3050	=item $client->async (\&cb)
2139		3051
2140	Create a new coroutine, running the specified callback. The coroutine will	3052	Create a new coroutine, running the specified callback. The coroutine will
…		…
2181	our $safe = new Safe "safe";	3093	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	3094	our $safe_hole = new Safe::Hole;
2183		3095
2184	$SIG{FPE} = 'IGNORE';	3096	$SIG{FPE} = 'IGNORE';
2185		3097
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3098	$safe->permit_only (Opcode::opset qw(
		3099	:base_core :base_mem :base_orig :base_math
		3100	grepstart grepwhile mapstart mapwhile
		3101	sort time
		3102	));
2187		3103
2188	# here we export the classes and methods available to script code	3104	# here we export the classes and methods available to script code
2189		3105
2190	=pod	3106	=pod
2191		3107
2192	The following functions and methods are available within a safe environment:	3108	The following functions and methods are available within a safe environment:
2193		3109
2194	cf::object contr pay_amount pay_player map	3110	cf::object
		3111	contr pay_amount pay_player map x y force_find force_add destroy
		3112	insert remove name archname title slaying race decrease split
		3113	value
		3114
2195	cf::object::player player	3115	cf::object::player
2196	cf::player peaceful	3116	player
2197	cf::map trigger	3117
		3118	cf::player
		3119	peaceful
		3120
		3121	cf::map
		3122	trigger
2198		3123
2199	=cut	3124	=cut
2200		3125
2201	for (	3126	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	3127	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3128	insert remove inv nrof name archname title slaying race
		3129	decrease split destroy change_exp value msg lore send_msg)],
2203	["cf::object::player" => qw(player)],	3130	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	3131	["cf::player" => qw(peaceful send_msg)],
2205	["cf::map" => qw(trigger)],	3132	["cf::map" => qw(trigger)],
2206	) {	3133	) {
2207	no strict 'refs';	3134	no strict 'refs';
2208	my ($pkg, @funs) = @$_;	3135	my ($pkg, @funs) = @$_;
2209	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3136	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2226	my ($code, %vars) = @_;	3153	my ($code, %vars) = @_;
2227		3154
2228	my $qcode = $code;	3155	my $qcode = $code;
2229	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3156	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2230	$qcode =~ s/\n/\\n/g;	3157	$qcode =~ s/\n/\\n/g;
		3158
		3159	%vars = (_dummy => 0) unless %vars;
2231		3160
2232	local $_;	3161	local $_;
2233	local @safe::cf::_safe_eval_args = values %vars;	3162	local @safe::cf::_safe_eval_args = values %vars;
2234		3163
2235	my $eval =	3164	my $eval =
…		…
2278	=back	3207	=back
2279		3208
2280	=cut	3209	=cut
2281		3210
2282	#############################################################################	3211	#############################################################################
2283
2284	=head2 EXTENSION DATABASE SUPPORT
2285
2286	Crossfire maintains a very simple database for extension use. It can
2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2288	convert to/from binary).
2289
2290	The parameter C<$family> should best start with the name of the extension
2291	using it, it should be unique.
2292
2293	=over 4
2294
2295	=item $value = cf::db_get $family => $key
2296
2297	Returns a single value from the database.
2298
2299	=item cf::db_put $family => $key => $value
2300
2301	Stores the given C<$value> in the family.
2302
2303	=cut
2304
2305	our $DB;
2306
2307	sub db_init {
2308	unless ($DB) {
2309	$DB = BDB::db_create $DB_ENV;
2310
2311	cf::sync_job {
2312	eval {
2313	$DB->set_flags (BDB::CHKSUM);
2314
2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2317	cf::cleanup "db_open(db): $!" if $!;
2318	};
2319	cf::cleanup "db_open(db): $@" if $@;
2320	};
2321	}
2322	}
2323
2324	sub db_get($$) {
2325	my $key = "$_[0]/$_[1]";
2326
2327	cf::sync_job {
2328	BDB::db_get $DB, undef, $key, my $data;
2329
2330	$! ? ()
2331	: $data
2332	}
2333	}
2334
2335	sub db_put($$$) {
2336	BDB::dbreq_pri 4;
2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2338	}
2339
2340	=item cf::cache $id => [$paths...], $processversion => $process
2341
2342	Generic caching function that returns the value of the resource $id,
2343	caching and regenerating as required.
2344
2345	This function can block.
2346
2347	=cut
2348
2349	sub cache {
2350	my ($id, $src, $processversion, $process) = @_;
2351
2352	my $meta =
2353	join "\x00",
2354	$processversion,
2355	map {
2356	aio_stat $_
2357	and Carp::croak "$_: $!";
2358
2359	($_, (stat _)[7,9])
2360	} @$src;
2361
2362	my $dbmeta = db_get cache => "$id/meta";
2363	if ($dbmeta ne $meta) {
2364	# changed, we may need to process
2365
2366	my @data;
2367	my $md5;
2368
2369	for (0 .. $#$src) {
2370	0 <= aio_load $src->[$_], $data[$_]
2371	or Carp::croak "$src->[$_]: $!";
2372	}
2373
2374	# if processing is expensive, check
2375	# checksum first
2376	if (1) {
2377	$md5 =
2378	join "\x00",
2379	$processversion,
2380	map {
2381	Coro::cede;
2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
2383	} 0.. $#$src;
2384
2385
2386	my $dbmd5 = db_get cache => "$id/md5";
2387	if ($dbmd5 eq $md5) {
2388	db_put cache => "$id/meta", $meta;
2389
2390	return db_get cache => "$id/data";
2391	}
2392	}
2393
2394	my $t1 = Time::HiRes::time;
2395	my $data = $process->(\@data);
2396	my $t2 = Time::HiRes::time;
2397
2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400	db_put cache => "$id/data", $data;
2401	db_put cache => "$id/md5" , $md5;
2402	db_put cache => "$id/meta", $meta;
2403
2404	return $data;
2405	}
2406
2407	db_get cache => "$id/data"
2408	}
2409
2410	=item fork_call { }, $args
2411
2412	Executes the given code block with the given arguments in a seperate
2413	process, returning the results. Everything must be serialisable with
2414	Coro::Storable. May, of course, block. Note that the executed sub may
2415	never block itself or use any form of Event handling.
2416
2417	=cut
2418
2419	sub fork_call(&@) {
2420	my ($cb, @args) = @_;
2421
2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423	# or die "socketpair: $!";
2424	pipe my $fh1, my $fh2
2425	or die "pipe: $!";
2426
2427	if (my $pid = fork) {
2428	close $fh2;
2429
2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431	$res = Coro::Storable::thaw $res;
2432
2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435	die $$res unless "ARRAY" eq ref $res;
2436
2437	return wantarray ? @$res : $res->[-1];
2438	} else {
2439	local $SIG{__WARN__};
2440	eval {
2441	local $SIG{__DIE__};
2442	close $fh1;
2443
2444	my @res = eval { $cb->(@args) };
2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446	};
2447
2448	warn $@ if $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454
2455	#############################################################################
2456	# the server's init and main functions	3212	# the server's init and main functions
2457		3213
2458	sub load_facedata($) {	3214	sub load_facedata($) {
2459	my ($path) = @_;	3215	my ($path) = @_;
		3216
		3217	# HACK to clear player env face cache, we need some signal framework
		3218	# for this (global event?)
		3219	%ext::player_env::MUSIC_FACE_CACHE = ();
		3220
		3221	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2460		3222
2461	warn "loading facedata from $path\n";	3223	warn "loading facedata from $path\n";
2462		3224
2463	my $facedata;	3225	my $facedata;
2464	0 < aio_load $path, $facedata	3226	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	3229	$facedata = Coro::Storable::thaw $facedata;
2468		3230
2469	$facedata->{version} == 2	3231	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	3232	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		3233
		3234	# patch in the exptable
		3235	$facedata->{resource}{"res/exp_table"} = {
		3236	type => FT_RSRC,
		3237	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3238	};
		3239	cf::cede_to_tick;
		3240
2472	{	3241	{
2473	my $faces = $facedata->{faceinfo};	3242	my $faces = $facedata->{faceinfo};
2474		3243
2475	while (my ($face, $info) = each %$faces) {	3244	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3245	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3246
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3247	cf::face::set_visibility $idx, $info->{visibility};
		3248	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3249	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3250	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2480	Coro::cede;	3251
		3252	cf::cede_to_tick;
2481	}	3253	}
2482		3254
2483	while (my ($face, $info) = each %$faces) {	3255	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	3256	next unless $info->{smooth};
		3257
2485	my $idx = cf::face::find $face	3258	my $idx = cf::face::find $face
2486	or next;	3259	or next;
		3260
2487	if (my $smooth = cf::face::find $info->{smooth}) {	3261	if (my $smooth = cf::face::find $info->{smooth}) {
		3262	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3263	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	3264	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	3265	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	3266	}
2492	Coro::cede;	3267
		3268	cf::cede_to_tick;
2493	}	3269	}
2494	}	3270	}
2495		3271
2496	{	3272	{
2497	my $anims = $facedata->{animinfo};	3273	my $anims = $facedata->{animinfo};
2498		3274
2499	while (my ($anim, $info) = each %$anims) {	3275	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	3276	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	3277	cf::cede_to_tick;
2502	}	3278	}
2503		3279
2504	cf::anim::invalidate_all; # d'oh	3280	cf::anim::invalidate_all; # d'oh
2505	}	3281	}
2506		3282
		3283	{
		3284	# TODO: for gcfclient pleasure, we should give resources
		3285	# that gcfclient doesn't grok a >10000 face index.
		3286	my $res = $facedata->{resource};
		3287
		3288	while (my ($name, $info) = each %$res) {
		3289	if (defined $info->{type}) {
		3290	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3291	my $data;
		3292
		3293	if ($info->{type} & 1) {
		3294	# prepend meta info
		3295
		3296	my $meta = $enc->encode ({
		3297	name => $name,
		3298	%{ $info->{meta} || {} },
		3299	});
		3300
		3301	$data = pack "(w/a*)*", $meta, $info->{data};
		3302	} else {
		3303	$data = $info->{data};
		3304	}
		3305
		3306	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3307	cf::face::set_type $idx, $info->{type};
		3308	} else {
		3309	$RESOURCE{$name} = $info;
		3310	}
		3311
		3312	cf::cede_to_tick;
		3313	}
		3314	}
		3315
		3316	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3317
2507	1	3318	1
2508	}	3319	}
2509		3320
		3321	cf::global->attach (on_resource_update => sub {
		3322	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3323	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3324
		3325	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3326	my $sound = $soundconf->{compat}[$_]
		3327	or next;
		3328
		3329	my $face = cf::face::find "sound/$sound->[1]";
		3330	cf::sound::set $sound->[0] => $face;
		3331	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3332	}
		3333
		3334	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3335	my $face = cf::face::find "sound/$v";
		3336	cf::sound::set $k => $face;
		3337	}
		3338	}
		3339	});
		3340
		3341	register_exticmd fx_want => sub {
		3342	my ($ns, $want) = @_;
		3343
		3344	while (my ($k, $v) = each %$want) {
		3345	$ns->fx_want ($k, $v);
		3346	}
		3347	};
		3348
		3349	sub load_resource_file($) {
		3350	my $guard = lock_acquire "load_resource_file";
		3351
		3352	my $status = load_resource_file_ $_[0];
		3353	get_slot 0.1, 100;
		3354	cf::arch::commit_load;
		3355
		3356	$status
		3357	}
		3358
2510	sub reload_regions {	3359	sub reload_regions {
		3360	# HACK to clear player env face cache, we need some signal framework
		3361	# for this (global event?)
		3362	%ext::player_env::MUSIC_FACE_CACHE = ();
		3363
2511	load_resource_file "$MAPDIR/regions"	3364	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	3365	or die "unable to load regions file\n";
		3366
		3367	for (cf::region::list) {
		3368	$_->{match} = qr/$_->{match}/
		3369	if exists $_->{match};
		3370	}
2513	}	3371	}
2514		3372
2515	sub reload_facedata {	3373	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	3374	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	3375	or die "unable to load facedata\n";
…		…
2528	}	3386	}
2529		3387
2530	sub reload_resources {	3388	sub reload_resources {
2531	warn "reloading resource files...\n";	3389	warn "reloading resource files...\n";
2532		3390
2533	reload_regions;
2534	reload_facedata;	3391	reload_facedata;
2535	reload_archetypes;	3392	reload_archetypes;
		3393	reload_regions;
2536	reload_treasures;	3394	reload_treasures;
2537		3395
2538	warn "finished reloading resource files\n";	3396	warn "finished reloading resource files\n";
2539	}	3397	}
2540		3398
2541	sub init {	3399	sub reload_config {
2542	reload_resources;	3400	warn "reloading config file...\n";
2543	}
2544		3401
2545	sub cfg_load {
2546	open my $fh, "<:utf8", "$CONFDIR/config"	3402	open my $fh, "<:utf8", "$CONFDIR/config"
2547	or return;	3403	or return;
2548		3404
2549	local $/;	3405	local $/;
2550	*CFG = YAML::Syck::Load <$fh>;	3406	*CFG = YAML::XS::Load scalar <$fh>;
2551		3407
2552	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2553		3409
2554	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2555	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2559	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3415	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2560	and die "WARNING: m(un)lockall failed: $!\n";	3416	and die "WARNING: m(un)lockall failed: $!\n";
2561	};	3417	};
2562	warn $@ if $@;	3418	warn $@ if $@;
2563	}	3419	}
		3420
		3421	warn "finished reloading resource files\n";
		3422	}
		3423
		3424	sub pidfile() {
		3425	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3426	or die "$PIDFILE: $!";
		3427	flock $fh, &Fcntl::LOCK_EX
		3428	or die "$PIDFILE: flock: $!";
		3429	$fh
		3430	}
		3431
		3432	# make sure only one server instance is running at any one time
		3433	sub atomic {
		3434	my $fh = pidfile;
		3435
		3436	my $pid = <$fh>;
		3437	kill 9, $pid if $pid > 0;
		3438
		3439	seek $fh, 0, 0;
		3440	print $fh $$;
		3441	}
		3442
		3443	sub main_loop {
		3444	warn "EV::loop starting\n";
		3445	if (1) {
		3446	EV::loop;
		3447	}
		3448	warn "EV::loop returned\n";
		3449	goto &main_loop unless $REALLY_UNLOOP;
2564	}	3450	}
2565		3451
2566	sub main {	3452	sub main {
		3453	cf::init_globals; # initialise logging
		3454
		3455	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3456	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3457	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3458	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3459
		3460	cf::init_experience;
		3461	cf::init_anim;
		3462	cf::init_attackmess;
		3463	cf::init_dynamic;
		3464
		3465	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3466
2567	# we must not ever block the main coroutine	3467	# we must not ever block the main coroutine
2568	local $Coro::idle = sub {	3468	local $Coro::idle = sub {
2569	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3469	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2570	(async {	3470	(async {
2571	Event::one_event;	3471	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3472	EV::loop EV::LOOP_ONESHOT;
2572	})->prio (Coro::PRIO_MAX);	3473	})->prio (Coro::PRIO_MAX);
2573	};	3474	};
2574		3475
2575	cfg_load;	3476	evthread_start IO::AIO::poll_fileno;
		3477
		3478	cf::sync_job {
		3479	reload_resources;
		3480	reload_config;
2576	db_init;	3481	db_init;
		3482
		3483	cf::load_settings;
		3484	cf::load_materials;
		3485	cf::init_uuid;
		3486	cf::init_signals;
		3487	cf::init_commands;
		3488	cf::init_skills;
		3489
		3490	cf::init_beforeplay;
		3491
		3492	atomic;
		3493
2577	load_extensions;	3494	load_extensions;
2578		3495
2579	$TICK_WATCHER->start;	3496	utime time, time, $RUNTIMEFILE;
2580	Event::loop;	3497
		3498	# no (long-running) fork's whatsoever before this point(!)
		3499	use POSIX ();
		3500	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3501
		3502	(pop @POST_INIT)->(0) while @POST_INIT;
		3503	};
		3504
		3505	main_loop;
2581	}	3506	}
2582		3507
2583	#############################################################################	3508	#############################################################################
2584	# initialisation and cleanup	3509	# initialisation and cleanup
2585		3510
2586	# install some emergency cleanup handlers	3511	# install some emergency cleanup handlers
2587	BEGIN {	3512	BEGIN {
		3513	our %SIGWATCHER = ();
2588	for my $signal (qw(INT HUP TERM)) {	3514	for my $signal (qw(INT HUP TERM)) {
2589	Event->signal (	3515	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2590	reentrant => 0,
2591	data => WF_AUTOCANCEL,
2592	signal => $signal,
2593	prio => 0,
2594	cb => sub {
2595	cf::cleanup "SIG$signal";	3516	cf::cleanup "SIG$signal";
2596	},
2597	);	3517	};
		3518	}
		3519	}
		3520
		3521	sub write_runtime_sync {
		3522	# first touch the runtime file to show we are still running:
		3523	# the fsync below can take a very very long time.
		3524
		3525	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3526
		3527	my $guard = cf::lock_acquire "write_runtime";
		3528
		3529	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3530	or return;
		3531
		3532	my $value = $cf::RUNTIME + 90 + 10;
		3533	# 10 is the runtime save interval, for a monotonic clock
		3534	# 60 allows for the watchdog to kill the server.
		3535
		3536	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3537	and return;
		3538
		3539	# always fsync - this file is important
		3540	aio_fsync $fh
		3541	and return;
		3542
		3543	# touch it again to show we are up-to-date
		3544	aio_utime $fh, undef, undef;
		3545
		3546	close $fh
		3547	or return;
		3548
		3549	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3550	and return;
		3551
		3552	warn "runtime file written.\n";
		3553
2598	}	3554	1
		3555	}
		3556
		3557	our $uuid_lock;
		3558	our $uuid_skip;
		3559
		3560	sub write_uuid_sync($) {
		3561	$uuid_skip ||= $_[0];
		3562
		3563	return if $uuid_lock;
		3564	local $uuid_lock = 1;
		3565
		3566	my $uuid = "$LOCALDIR/uuid";
		3567
		3568	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3569	or return;
		3570
		3571	my $value = uuid_seq uuid_cur;
		3572
		3573	unless ($value) {
		3574	warn "cowardly refusing to write zero uuid value!\n";
		3575	return;
		3576	}
		3577
		3578	my $value = uuid_str $value + $uuid_skip;
		3579	$uuid_skip = 0;
		3580
		3581	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3582	and return;
		3583
		3584	# always fsync - this file is important
		3585	aio_fsync $fh
		3586	and return;
		3587
		3588	close $fh
		3589	or return;
		3590
		3591	aio_rename "$uuid~", $uuid
		3592	and return;
		3593
		3594	warn "uuid file written ($value).\n";
		3595
		3596	1
		3597
		3598	}
		3599
		3600	sub write_uuid($$) {
		3601	my ($skip, $sync) = @_;
		3602
		3603	$sync ? write_uuid_sync $skip
		3604	: async { write_uuid_sync $skip };
2599	}	3605	}
2600		3606
2601	sub emergency_save() {	3607	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3608	my $freeze_guard = cf::freeze_mainloop;
2603		3609
2604	warn "enter emergency perl save\n";	3610	warn "emergency_perl_save: enter\n";
2605		3611
2606	cf::sync_job {	3612	cf::sync_job {
		3613	# this is a trade-off: we want to be very quick here, so
		3614	# save all maps without fsync, and later call a global sync
		3615	# (which in turn might be very very slow)
		3616	local $USE_FSYNC = 0;
		3617
2607	# use a peculiar iteration method to avoid tripping on perl	3618	# use a peculiar iteration method to avoid tripping on perl
2608	# refcount bugs in for. also avoids problems with players	3619	# refcount bugs in for. also avoids problems with players
2609	# and maps saved/destroyed asynchronously.	3620	# and maps saved/destroyed asynchronously.
2610	warn "begin emergency player save\n";	3621	warn "emergency_perl_save: begin player save\n";
2611	for my $login (keys %cf::PLAYER) {	3622	for my $login (keys %cf::PLAYER) {
2612	my $pl = $cf::PLAYER{$login} or next;	3623	my $pl = $cf::PLAYER{$login} or next;
2613	$pl->valid or next;	3624	$pl->valid or next;
		3625	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2614	$pl->save;	3626	$pl->save;
2615	}	3627	}
2616	warn "end emergency player save\n";	3628	warn "emergency_perl_save: end player save\n";
2617		3629
2618	warn "begin emergency map save\n";	3630	warn "emergency_perl_save: begin map save\n";
2619	for my $path (keys %cf::MAP) {	3631	for my $path (keys %cf::MAP) {
2620	my $map = $cf::MAP{$path} or next;	3632	my $map = $cf::MAP{$path} or next;
2621	$map->valid or next;	3633	$map->valid or next;
2622	$map->save;	3634	$map->save;
2623	}	3635	}
2624	warn "end emergency map save\n";	3636	warn "emergency_perl_save: end map save\n";
2625		3637
2626	warn "begin emergency database checkpoint\n";	3638	warn "emergency_perl_save: begin database checkpoint\n";
2627	BDB::db_env_txn_checkpoint $DB_ENV;	3639	BDB::db_env_txn_checkpoint $DB_ENV;
2628	warn "end emergency database checkpoint\n";	3640	warn "emergency_perl_save: end database checkpoint\n";
		3641
		3642	warn "emergency_perl_save: begin write uuid\n";
		3643	write_uuid_sync 1;
		3644	warn "emergency_perl_save: end write uuid\n";
2629	};	3645	};
2630		3646
		3647	warn "emergency_perl_save: starting sync()\n";
		3648	IO::AIO::aio_sync sub {
		3649	warn "emergency_perl_save: finished sync()\n";
		3650	};
		3651
2631	warn "leave emergency perl save\n";	3652	warn "emergency_perl_save: leave\n";
2632	}	3653	}
2633		3654
2634	sub post_cleanup {	3655	sub post_cleanup {
2635	my ($make_core) = @_;	3656	my ($make_core) = @_;
2636		3657
2637	warn Carp::longmess "post_cleanup backtrace"	3658	warn Carp::longmess "post_cleanup backtrace"
2638	if $make_core;	3659	if $make_core;
		3660
		3661	my $fh = pidfile;
		3662	unlink $PIDFILE if <$fh> == $$;
		3663	}
		3664
		3665	# a safer delete_package, copied from Symbol
		3666	sub clear_package($) {
		3667	my $pkg = shift;
		3668
		3669	# expand to full symbol table name if needed
		3670	unless ($pkg =~ /^main::.*::$/) {
		3671	$pkg = "main$pkg" if $pkg =~ /^::/;
		3672	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3673	$pkg .= '::' unless $pkg =~ /::$/;
		3674	}
		3675
		3676	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3677	my $stem_symtab = *{$stem}{HASH};
		3678
		3679	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3680	or return;
		3681
		3682	# clear all symbols
		3683	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3684	for my $name (keys %$leaf_symtab) {
		3685	_gv_clear *{"$pkg$name"};
		3686	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3687	}
		3688	warn "cleared package $pkg\n";#d#
2639	}	3689	}
2640		3690
2641	sub do_reload_perl() {	3691	sub do_reload_perl() {
2642	# can/must only be called in main	3692	# can/must only be called in main
2643	if ($Coro::current != $Coro::main) {	3693	if ($Coro::current != $Coro::main) {
2644	warn "can only reload from main coroutine";	3694	warn "can only reload from main coroutine";
2645	return;	3695	return;
2646	}	3696	}
2647		3697
		3698	return if $RELOAD++;
		3699
		3700	my $t1 = EV::time;
		3701
		3702	while ($RELOAD) {
2648	warn "reloading...";	3703	warn "reloading...";
2649		3704
2650	warn "entering sync_job";	3705	warn "entering sync_job";
2651		3706
2652	cf::sync_job {	3707	cf::sync_job {
2653	cf::write_runtime; # external watchdog should not bark	3708	cf::write_runtime_sync; # external watchdog should not bark
2654	cf::emergency_save;	3709	cf::emergency_save;
2655	cf::write_runtime; # external watchdog should not bark	3710	cf::write_runtime_sync; # external watchdog should not bark
2656		3711
2657	warn "syncing database to disk";	3712	warn "syncing database to disk";
2658	BDB::db_env_txn_checkpoint $DB_ENV;	3713	BDB::db_env_txn_checkpoint $DB_ENV;
2659		3714
2660	# if anything goes wrong in here, we should simply crash as we already saved	3715	# if anything goes wrong in here, we should simply crash as we already saved
2661		3716
2662	warn "cancelling all WF_AUTOCANCEL watchers";
2663	for (Event::all_watchers) {
2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2665	}
2666
2667	warn "flushing outstanding aio requests";	3717	warn "flushing outstanding aio requests";
2668	for (;;) {
2669	BDB::flush;
2670	IO::AIO::flush;
2671	Coro::cede;
2672	last unless IO::AIO::nreqs || BDB::nreqs;	3718	while (IO::AIO::nreqs || BDB::nreqs) {
2673	warn "iterate...";	3719	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2674	}
2675
2676	++$RELOAD;
2677
2678	warn "cancelling all extension coros";
2679	$_->cancel for values %EXT_CORO;
2680	%EXT_CORO = ();
2681
2682	warn "removing commands";
2683	%COMMAND = ();
2684
2685	warn "removing ext commands";
2686	%EXTCMD = ();
2687
2688	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";
2691
2692	if (my $cb = $pkg->can ("unload")) {
2693	eval {
2694	$cb->($pkg);
2695	1
2696	} or warn "$pkg unloaded, but with errors: $@";
2697	}	3720	}
2698		3721
2699	warn "... nuking $pkg";	3722	warn "cancelling all extension coros";
2700	Symbol::delete_package $pkg;	3723	$_->cancel for values %EXT_CORO;
2701	}	3724	%EXT_CORO = ();
2702		3725
2703	warn "unloading all perl modules loaded from $LIBDIR";	3726	warn "removing commands";
2704	while (my ($k, $v) = each %INC) {	3727	%COMMAND = ();
2705	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2706		3728
		3729	warn "removing ext/exti commands";
		3730	%EXTCMD = ();
		3731	%EXTICMD = ();
		3732
		3733	warn "unloading/nuking all extensions";
		3734	for my $pkg (@EXTS) {
2707	warn "... unloading $k";	3735	warn "... unloading $pkg";
2708	delete $INC{$k};
2709		3736
2710	$k =~ s/\.pm$//;
2711	$k =~ s/\//::/g;
2712
2713	if (my $cb = $k->can ("unload_module")) {	3737	if (my $cb = $pkg->can ("unload")) {
		3738	eval {
2714	$cb->();	3739	$cb->($pkg);
		3740	1
		3741	} or warn "$pkg unloaded, but with errors: $@";
		3742	}
		3743
		3744	warn "... clearing $pkg";
		3745	clear_package $pkg;
2715	}	3746	}
2716		3747
2717	Symbol::delete_package $k;	3748	warn "unloading all perl modules loaded from $LIBDIR";
		3749	while (my ($k, $v) = each %INC) {
		3750	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3751
		3752	warn "... unloading $k";
		3753	delete $INC{$k};
		3754
		3755	$k =~ s/\.pm$//;
		3756	$k =~ s/\//::/g;
		3757
		3758	if (my $cb = $k->can ("unload_module")) {
		3759	$cb->();
		3760	}
		3761
		3762	clear_package $k;
2718	}	3763	}
2719		3764
2720	warn "getting rid of safe::, as good as possible";	3765	warn "getting rid of safe::, as good as possible";
2721	Symbol::delete_package "safe::$_"	3766	clear_package "safe::$_"
2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3767	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2723		3768
2724	warn "unloading cf.pm \"a bit\"";	3769	warn "unloading cf.pm \"a bit\"";
2725	delete $INC{"cf.pm"};	3770	delete $INC{"cf.pm"};
2726	delete $INC{"cf/pod.pm"};	3771	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2727		3772
2728	# don't, removes xs symbols, too,	3773	# don't, removes xs symbols, too,
2729	# and global variables created in xs	3774	# and global variables created in xs
2730	#Symbol::delete_package __PACKAGE__;	3775	#clear_package __PACKAGE__;
2731		3776
2732	warn "unload completed, starting to reload now";	3777	warn "unload completed, starting to reload now";
2733		3778
2734	warn "reloading cf.pm";	3779	warn "reloading cf.pm";
2735	require cf;	3780	require cf;
2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3781	cf::_connect_to_perl_1;
2737		3782
2738	warn "loading config and database again";	3783	warn "loading config and database again";
2739	cf::cfg_load;	3784	cf::reload_config;
2740		3785
2741	warn "loading extensions";	3786	warn "loading extensions";
2742	cf::load_extensions;	3787	cf::load_extensions;
2743		3788
		3789	if ($REATTACH_ON_RELOAD) {
2744	warn "reattaching attachments to objects/players";	3790	warn "reattaching attachments to objects/players";
2745	_global_reattach; # objects, sockets	3791	_global_reattach; # objects, sockets
2746	warn "reattaching attachments to maps";	3792	warn "reattaching attachments to maps";
2747	reattach $_ for values %MAP;	3793	reattach $_ for values %MAP;
2748	warn "reattaching attachments to players";	3794	warn "reattaching attachments to players";
2749	reattach $_ for values %PLAYER;	3795	reattach $_ for values %PLAYER;
		3796	}
2750		3797
		3798	warn "running post_init jobs";
		3799	(pop @POST_INIT)->(1) while @POST_INIT;
		3800
2751	warn "leaving sync_job";	3801	warn "leaving sync_job";
2752		3802
2753	1	3803	1
2754	} or do {	3804	} or do {
2755	warn $@;	3805	warn $@;
2756	warn "error while reloading, exiting.";	3806	cf::cleanup "error while reloading, exiting.";
2757	exit 1;
2758	};	3807	};
2759		3808
2760	warn "reloaded";	3809	warn "reloaded";
		3810	--$RELOAD;
		3811	}
		3812
		3813	$t1 = EV::time - $t1;
		3814	warn "reload completed in ${t1}s\n";
2761	};	3815	};
2762		3816
2763	our $RELOAD_WATCHER; # used only during reload	3817	our $RELOAD_WATCHER; # used only during reload
2764		3818
2765	sub reload_perl() {	3819	sub reload_perl() {
2766	# doing reload synchronously and two reloads happen back-to-back,	3820	# doing reload synchronously and two reloads happen back-to-back,
2767	# coro crashes during coro_state_free->destroy here.	3821	# coro crashes during coro_state_free->destroy here.
2768		3822
2769	$RELOAD_WATCHER ||= Event->timer (	3823	$RELOAD_WATCHER ||= cf::async {
2770	reentrant => 0,	3824	Coro::AIO::aio_wait cache_extensions;
2771	after => 0,	3825
2772	data => WF_AUTOCANCEL,	3826	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2773	cb => sub {
2774	do_reload_perl;	3827	do_reload_perl;
2775	undef $RELOAD_WATCHER;	3828	undef $RELOAD_WATCHER;
2776	},	3829	};
2777	);	3830	};
2778	}	3831	}
2779		3832
2780	register_command "reload" => sub {	3833	register_command "reload" => sub {
2781	my ($who, $arg) = @_;	3834	my ($who, $arg) = @_;
2782		3835
2783	if ($who->flag (FLAG_WIZ)) {	3836	if ($who->flag (FLAG_WIZ)) {
2784	$who->message ("reloading server.");	3837	$who->message ("reloading server.");
		3838	async {
		3839	$Coro::current->{desc} = "perl_reload";
2785	async { reload_perl };	3840	reload_perl;
		3841	};
2786	}	3842	}
2787	};	3843	};
2788		3844
2789	unshift @INC, $LIBDIR;	3845	unshift @INC, $LIBDIR;
2790		3846
…		…
2792		3848
2793	our @WAIT_FOR_TICK;	3849	our @WAIT_FOR_TICK;
2794	our @WAIT_FOR_TICK_BEGIN;	3850	our @WAIT_FOR_TICK_BEGIN;
2795		3851
2796	sub wait_for_tick {	3852	sub wait_for_tick {
2797	return unless $TICK_WATCHER->is_active;
2798	return if $Coro::current == $Coro::main;	3853	return if tick_inhibit || $Coro::current == $Coro::main;
2799		3854
2800	my $signal = new Coro::Signal;	3855	my $signal = new Coro::Signal;
2801	push @WAIT_FOR_TICK, $signal;	3856	push @WAIT_FOR_TICK, $signal;
2802	$signal->wait;	3857	$signal->wait;
2803	}	3858	}
2804		3859
2805	sub wait_for_tick_begin {	3860	sub wait_for_tick_begin {
2806	return unless $TICK_WATCHER->is_active;
2807	return if $Coro::current == $Coro::main;	3861	return if tick_inhibit || $Coro::current == $Coro::main;
2808		3862
2809	my $signal = new Coro::Signal;	3863	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3864	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3865	$signal->wait;
2812	}	3866	}
2813		3867
2814	$TICK_WATCHER = Event->timer (	3868	sub tick {
2815	reentrant => 0,
2816	parked => 1,
2817	prio => 0,
2818	at => $NEXT_TICK || $TICK,
2819	data => WF_AUTOCANCEL,
2820	cb => sub {
2821	if ($Coro::current != $Coro::main) {	3869	if ($Coro::current != $Coro::main) {
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3870	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3871	unless ++$bug_warning > 10;
2824	return;	3872	return;
2825	}	3873	}
2826		3874
2827	$NOW = Event::time;
2828
2829	cf::server_tick; # one server iteration	3875	cf::server_tick; # one server iteration
2830		3876
2831	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;
2833
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3877	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2835	$NEXT_RUNTIME_WRITE = $NOW + 10;	3878	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2836	Coro::async_pool {	3879	Coro::async_pool {
		3880	$Coro::current->{desc} = "runtime saver";
2837	write_runtime	3881	write_runtime_sync
2838	or warn "ERROR: unable to write runtime file: $!";	3882	or warn "ERROR: unable to write runtime file: $!";
2839	};
2840	}	3883	};
		3884	}
2841		3885
2842	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#
2844
2845	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2847
2848	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;
2850
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3886	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2852	$sig->send;	3887	$sig->send;
2853	}	3888	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {	3889	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;	3890	$sig->send;
2856	}
2857
2858	_post_tick;
2859	},	3891	}
2860	);	3892
		3893	$LOAD = ($NOW - $TICK_START) / $TICK;
		3894	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3895
		3896	if (0) {
		3897	if ($NEXT_TICK) {
		3898	my $jitter = $TICK_START - $NEXT_TICK;
		3899	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3900	warn "jitter $JITTER\n";#d#
		3901	}
		3902	}
		3903	}
2861		3904
2862	{	3905	{
2863	BDB::max_poll_time $TICK * 0.1;	3906	# configure BDB
2864	$BDB_POLL_WATCHER = Event->io (	3907
2865	reentrant => 0,
2866	fd => BDB::poll_fileno,
2867	poll => 'r',
2868	prio => 0,
2869	data => WF_AUTOCANCEL,
2870	cb => \&BDB::poll_cb,
2871	);
2872	BDB::min_parallel 8;	3908	BDB::min_parallel 8;
2873		3909	BDB::max_poll_reqs $TICK * 0.1;
2874	BDB::set_sync_prepare {	3910	$AnyEvent::BDB::WATCHER->priority (1);
2875	my $status;
2876	my $current = $Coro::current;
2877	(
2878	sub {
2879	$status = $!;
2880	$current->ready; undef $current;
2881	},
2882	sub {
2883	Coro::schedule while defined $current;
2884	$! = $status;
2885	},
2886	)
2887	};
2888		3911
2889	unless ($DB_ENV) {	3912	unless ($DB_ENV) {
2890	$DB_ENV = BDB::db_env_create;	3913	$DB_ENV = BDB::db_env_create;
		3914	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3915	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3916	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3917	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3918	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2891		3919
2892	cf::sync_job {	3920	cf::sync_job {
2893	eval {	3921	eval {
2894	BDB::db_env_open	3922	BDB::db_env_open
2895	$DB_ENV,	3923	$DB_ENV,
…		…
2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3925	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3926	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2899	0666;	3927	0666;
2900		3928
2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3929	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2902
2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2904	$DB_ENV->set_lk_detect;
2905	};	3930	};
2906		3931
2907	cf::cleanup "db_env_open(db): $@" if $@;	3932	cf::cleanup "db_env_open(db): $@" if $@;
2908	};	3933	};
2909	}	3934	}
		3935
		3936	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3937	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3938	};
		3939	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3940	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3941	};
		3942	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3943	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3944	};
2910	}	3945	}
2911		3946
2912	{	3947	{
		3948	# configure IO::AIO
		3949
2913	IO::AIO::min_parallel 8;	3950	IO::AIO::min_parallel 8;
2914
2915	undef $Coro::AIO::WATCHER;
2916	IO::AIO::max_poll_time $TICK * 0.1;	3951	IO::AIO::max_poll_time $TICK * 0.1;
2917	$AIO_POLL_WATCHER = Event->io (	3952	undef $AnyEvent::AIO::WATCHER;
2918	reentrant => 0,	3953	}
2919	data => WF_AUTOCANCEL,	3954
2920	fd => IO::AIO::poll_fileno,	3955	my $_log_backtrace;
2921	poll => 'r',	3956
2922	prio => 6,	3957	sub _log_backtrace {
2923	cb => \&IO::AIO::poll_cb,	3958	my ($msg, @addr) = @_;
2924	);	3959
		3960	$msg =~ s/\n//;
		3961
		3962	# limit the # of concurrent backtraces
		3963	if ($_log_backtrace < 2) {
		3964	++$_log_backtrace;
		3965	my $perl_bt = Carp::longmess $msg;
		3966	async {
		3967	$Coro::current->{desc} = "abt $msg";
		3968
		3969	my @bt = fork_call {
		3970	@addr = map { sprintf "%x", $_ } @addr;
		3971	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3972	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3973	or die "addr2line: $!";
		3974
		3975	my @funcs;
		3976	my @res = <$fh>;
		3977	chomp for @res;
		3978	while (@res) {
		3979	my ($func, $line) = splice @res, 0, 2, ();
		3980	push @funcs, "[$func] $line";
		3981	}
		3982
		3983	@funcs
		3984	};
		3985
		3986	LOG llevInfo, "[ABT] $perl_bt\n";
		3987	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3988	LOG llevInfo, "[ABT] $_\n" for @bt;
		3989	--$_log_backtrace;
		3990	};
		3991	} else {
		3992	LOG llevInfo, "[ABT] $msg\n";
		3993	LOG llevInfo, "[ABT] [suppressed]\n";
		3994	}
2925	}	3995	}
2926		3996
2927	# load additional modules	3997	# load additional modules
2928	use cf::pod;	3998	require "cf/$_.pm" for @EXTRA_MODULES;
		3999	cf::_connect_to_perl_2;
2929		4000
2930	END { cf::emergency_save }	4001	END { cf::emergency_save }
2931		4002
2932	1	4003	1
2933		4004

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