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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.269 by root, Tue May 22 21:35:26 2007 UTC vs.
Revision 1.495 by root, Tue Nov 10 04:38:45 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 ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;	58	use Digest::MD5;
28	use Fcntl;	59	use Fcntl;
29	use YAML::Syck ();	60	use YAML::XS ();
30	use IO::AIO 2.32 ();	61	use IO::AIO ();
31	use Time::HiRes;	62	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	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	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$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		81
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		83
49	our %COMMAND = ();	84	our %COMMAND = ();
50	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
51		86
52	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
56		92
57	our $RELOAD; # number of reloads so far	93	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	94	our @EVENT;
		95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
59		97
60	our $CONFDIR = confdir;	98	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	99	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	100	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	101	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	102	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	103	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	107	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
71		113
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	114	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	115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	116	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	121	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
82		125
83	our %CFG;	126	our %CFG;
84		127
85	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
87		131
88	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
91		135
92	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		138
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
98		148
99	binmode STDOUT;	149	binmode STDOUT;
100	binmode STDERR;	150	binmode STDERR;
101		151
102	# read virtual server time, if available	152	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	154	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
107	}	157	}
		158
		159	eval "sub TICK() { $TICK } 1" or die;
108		160
109	mkdir $_	161	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		163
112	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
113		165
114	sub cf::map::normalise;	166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		178
116	#############################################################################	179	#############################################################################
117		180
118	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
119		182
…		…
155		218
156	The raw value load value from the last tick.	219	The raw value load value from the last tick.
157		220
158	=item %cf::CFG	221	=item %cf::CFG
159		222
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	224	from wherever your confdir points to.
162		225
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		227
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	228	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	229	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
169	=back	244	=back
170		245
171	=cut	246	=cut
172		247
173	BEGIN {	248	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	249	my $msg = join "", @_;
176		250
177	$msg .= "\n"	251	$msg .= "\n"
178	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
179		253
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		255
182	utf8::encode $msg;
183	LOG llevError, $msg;	256	LOG llevError, $msg;
184	};	257	};
185	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
186		272
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		280
194	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	282	# within the Safe compartment.
196	for my $pkg (qw(	283	for my $pkg (qw(
197	cf::global cf::attachable	284	cf::global cf::attachable
198	cf::object cf::object::player	285	cf::object cf::object::player
199	cf::client cf::player	286	cf::client cf::player
200	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
201	cf::map cf::party cf::region	289	cf::party cf::region
202	)) {	290	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	292	}
206		293
207	$Event::DIED = sub {	294	$EV::DIED = sub {
208	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
209	};	296	};
		297
		298	#############################################################################
210		299
211	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
212		301
213	=over 4	302	=over 4
214		303
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	323	$d
235	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
236	}	325	}
237		326
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
241		328
242	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
243		330
244	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
245		332
246	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
247		334
		335	=cut
		336
		337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		338
		339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
		354	}
		355
248	=item cf::lock_wait $string	356	=item cf::lock_wait $string
249		357
250	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
251		359
252	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
253		361
254	Wait until the given lock is available and then acquires it and returns	362	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	363	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
257	returned.	365	returned.
258		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
259	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
261		372
262	=item $locked = cf::lock_active $string	373	=item $locked = cf::lock_active $string
263		374
264	Return true if the lock is currently active, i.e. somebody has locked it.	375	Return true if the lock is currently active, i.e. somebody has locked it.
265		376
266	=cut	377	=cut
267		378
268	our %LOCK;	379	our $LOCKS = new Coro::SemaphoreSet;
269		380
270	sub lock_wait($) {	381	sub lock_wait($) {
271	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	383	}
279		384
280	sub lock_acquire($) {	385	sub lock_acquire($) {
281	my ($key) = @_;	386	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	387	}
293		388
294	sub lock_active($) {	389	sub lock_active($) {
295	my ($key) = @_;	390	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	391	}
299		392
300	sub freeze_mainloop {	393	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
302		395
303	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	397	}
		398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
305	};	457	}
306	$TICK_WATCHER->stop;	458	};
307	$guard	459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
308	}	472	}
309		473
310	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
311		475
312	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		481
318	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
319		483
320	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
321		485
322	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
325		490
326	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
329	fast or be very important.	494	fast or be very important.
…		…
332		497
333	sub sync_job(&) {	498	sub sync_job(&) {
334	my ($job) = @_;	499	my ($job) = @_;
335		500
336	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	502	my $time = EV::time;
338		503
339	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
341		506
342	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	508
344	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
345		510
346	my $busy = 1;	511	my $busy = 1;
347	my @res;	512	my @res;
348		513
349	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	516	@res = eval { $job->() };
351	warn $@ if $@;	517	warn $@ if $@;
352	undef $busy;	518	undef $busy;
353	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
354		520
355	while ($busy) {	521	while ($busy) {
356	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
357	}	526	}
		527	}
358		528
359	$time = Event::time - $time;	529	my $time = EV::time - $time;
360		530
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	531	$TICK_START += $time; # do not account sync jobs to server load
365		532
366	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
367	} else {	534	} else {
368	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
369		536
…		…
389	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
390		557
391	$coro	558	$coro
392	}	559	}
393		560
394	sub write_runtime {	561	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		562
397	# first touch the runtime file to show we are still running:	563	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
399		567
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	568	=cut
401	utime undef, undef, $fh;	569
		570	sub fork_call(&@) {
		571	my ($cb, @args) = @_;
		572
		573	# we seemingly have to make a local copy of the whole thing,
		574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
		576
		577	my @res = Coro::Util::fork_eval {
		578	reset_signals;
		579	&$cb
		580	}, @args;
		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
402	}	639	};
		640	cf::cleanup "db_open(db): $@" if $@;
403		641
404	my $guard = cf::lock_acquire "write_runtime";	642	$db
		643	}
405		644
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	645	our $DB;
407	or return;
408		646
409	my $value = $cf::RUNTIME + 90 + 10;	647	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	648	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	649	$DB ||= db_table "db";
		650	};
		651	}
412		652
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	653	sub db_get($$) {
414	and return;	654	my $key = "$_[0]/$_[1]";
415		655
416	# always fsync - this file is important	656	cf::sync_job {
417	aio_fsync $fh	657	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		658
420	# touch it again to show we are up-to-date	659	$! ? ()
421	utime undef, undef, $fh;	660	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
432	}	737	}
433		738
434	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
435		740
436	Log a datalog packet of the given type with the given key-value pairs.	741	Log a datalog packet of the given type with the given key-value pairs.
…		…
448		753
449	#############################################################################	754	#############################################################################
450		755
451	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
452		757
453	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
456		761
457	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	764	Deliantra).
460		765
461	=over 4	766	=over 4
462		767
463	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
464		769
…		…
508	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
509		814
510	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
512		817
513	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
515		820
516	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
517		822
518	=over 4	823	=over 4
…		…
666	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
667	}	972	}
668		973
669	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
670	} else {	975	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	977	}
673		978
674	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
675	}	980	}
676		981
…		…
716	";	1021	";
717	die if $@;	1022	die if $@;
718	}	1023	}
719		1024
720	our $override;	1025	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1027
723	sub override {	1028	sub override {
724	$override = 1;	1029	$override = 1;
725	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
726	}	1031	}
727		1032
728	sub do_invoke {	1033	sub do_invoke {
729	my $event = shift;	1034	my $event = shift;
730	my $callbacks = shift;	1035	my $callbacks = shift;
731		1036
732	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
733		1038
734	local $override;	1039	local $override;
735		1040
736	for (@$callbacks) {	1041	for (@$callbacks) {
737	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
746	}	1051	}
747		1052
748	0	1053	0
749	}	1054	}
750		1055
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1057
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1059
755	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
756		1061
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
758	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1065
761	=back	1066	=back
762		1067
763	=cut	1068	=cut
764		1069
765	#############################################################################	1070	#############################################################################
766	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
767		1114
768	sub reattach {	1115	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1117	my ($obj) = @_;
771		1118
		1119	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1121
774	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
775		1123
776	@$registry = ();	1124	@$registry = ();
777		1125
…		…
792	cf::attachable->attach (	1140	cf::attachable->attach (
793	prio => -1000000,	1141	prio => -1000000,
794	on_instantiate => sub {	1142	on_instantiate => sub {
795	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
796		1144
797	$data = from_json $data;	1145	$data = decode_json $data;
798		1146
799	for (@$data) {	1147	for (@$data) {
800	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
801		1149
802	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1166	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
820		1168
821	sync_job {	1169	sync_job {
822	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
825		1174
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1178	if ($cf::USE_FSYNC) {
		1179	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;
		1180	aio_fsync $fh;
		1181	}
830	close $fh;	1182	aio_close $fh;
831		1183
832	if (@$objs) {	1184	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1189	if ($cf::USE_FSYNC) {
		1190	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;
		1191	aio_fsync $fh;
		1192	}
838	close $fh;	1193	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
840	}	1195	}
841	} else {	1196	} else {
842	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
843	}	1198	}
844		1199
845	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1204	} else {
847	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
848	}	1206	}
849	} else {	1207	} else {
850	aio_unlink $filename;	1208	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
852	}	1210	}
853	}	1211	};
854	}	1212	}
855		1213
856	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
858		1216
…		…
870	or return;	1228	or return;
871		1229
872	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
874	or return;	1232	or return;
		1233
875	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
876	}	1236	}
877		1237
		1238	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
880	return ($data, $av);	1242	($data, $av)
881	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
882		1250
883	#############################################################################	1251	#############################################################################
884	# command handling &c	1252	# command handling &c
885		1253
886	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1268	}
901		1269
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1271
904	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
905		1277
906	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
907	called.	1279	called.
908		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
909	=cut	1292	=cut
910		1293
911	sub register_extcmd {	1294	sub register_extcmd {
912	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
913		1296
914	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
915	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
916		1307
917	cf::player->attach (	1308	cf::player->attach (
918	on_command => sub {	1309	on_command => sub {
919	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
920		1311
…		…
928	cf::override;	1319	cf::override;
929	},	1320	},
930	on_extcmd => sub {	1321	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
932		1323
933	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1325
935	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
941	} else {	1341	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1343	}
944		1344
945	cf::override;	1345	cf::override;
946	},	1346	},
947	);	1347	);
948		1348
		1349	# "readahead" all extensions
949	sub load_extension {	1350	sub cache_extensions {
950	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
951		1352
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}	1356	}
977	die $@;
978	}	1357	};
979		1358
980	push @EXTS, $pkg;	1359	$grp
981	}	1360	}
982		1361
983	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
984	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1367	next unless -r $path;
986	eval {	1368
987	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
988	1	1425	}
989	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
990	}	1431	};
991	}	1432	}
992		1433
993	#############################################################################	1434	#############################################################################
994		1435
		1436	=back
		1437
995	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
996		1439
997	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
998		1441
999	=cut	1442	=cut
1000		1443
1001	package cf::player;	1444	package cf::player;
1002		1445
1003	use Coro::AIO;	1446	use Coro::AIO;
1004		1447
1005	=head3 cf::player	1448	=head3 cf::player
1006		1449
1007	=over 4	1450	=over 4
		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
1008		1465
1009	=item cf::player::find $login	1466	=item cf::player::find $login
1010		1467
1011	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
1012		1469
…		…
1031		1488
1032	sub exists($) {	1489	sub exists($) {
1033	my ($login) = @_;	1490	my ($login) = @_;
1034		1491
1035	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
1037	}	1494	}
1038		1495
1039	sub find($) {	1496	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1498	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1509
1053	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1056	}	1519	}
1057	}	1520	}
1058	}	1521	}
1059		1522
…		…
1068	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1069		1532
1070	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1072		1535
		1536	cf::get_slot 0.01;
		1537
1073	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1074	Coro::cede;	1539	cf::cede_to_tick;
1075	}	1540	}
1076		1541
1077	sub new($) {	1542	sub new($) {
1078	my ($login) = @_;	1543	my ($login) = @_;
1079		1544
…		…
1085	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1086		1551
1087	$self	1552	$self
1088	}	1553	}
1089		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1090	=item $pl->quit_character	1565	=item $pl->quit_character
1091		1566
1092	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1094		1569
…		…
1098	my ($pl) = @_;	1573	my ($pl) = @_;
1099		1574
1100	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1101		1576
1102	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1579
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1106	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1108	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1109		1586
1110	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1147	or return [];	1624	or return [];
1148		1625
1149	my @logins;	1626	my @logins;
1150		1627
1151	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1155		1638
1156	utf8::decode $login;	1639	utf8::decode $login;
1157	push @logins, $login;	1640	push @logins, $login;
1158	}	1641	}
1159		1642
…		…
1186	}	1669	}
1187		1670
1188	\@paths	1671	\@paths
1189	}	1672	}
1190		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1191	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1192		1679
1193	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1194		1681
1195	=cut	1682	=cut
1196		1683
1197	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1199		1686
1200	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1688	}
1204		1689
1205	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1206		1691
1207	Sends an ext event to the client.	1692	Sends an ext event to the client.
1208		1693
1209	=cut	1694	=cut
1210		1695
1211	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1213		1698
1214	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1215	}	1700	}
1216		1701
1217	=head3 cf::region	1702	=head3 cf::region
1218		1703
1219	=over 4	1704	=over 4
…		…
1222		1707
1223	package cf::region;	1708	package cf::region;
1224		1709
1225	=item cf::region::find_by_path $path	1710	=item cf::region::find_by_path $path
1226		1711
1227	Tries to decuce the probable region for a map knowing only its path.	1712	Tries to decuce the likely region for a map knowing only its path.
1228		1713
1229	=cut	1714	=cut
1230		1715
1231	sub find_by_path($) {	1716	sub find_by_path($) {
1232	my ($path) = @_;	1717	my ($path) = @_;
1233		1718
1234	my ($match, $specificity);	1719	my ($match, $specificity);
1235		1720
1236	for my $region (list) {	1721	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1722	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1723	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1724	if $region->specificity > $specificity;
1240	}	1725	}
1241	}	1726	}
1242		1727
…		…
1263	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1265		1750
1266	sub generate_random_map {	1751	sub generate_random_map {
1267	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1755
1268	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1757	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1306	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1307		1795
1308	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1309	local $self->{path};	1797	local $self->{path};
1310	local $self->{load_path};	1798	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1799
1314	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1315	}	1801	}
1316		1802
1317	sub normalise {	1803	sub normalise {
…		…
1364	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1365	return $self;	1851	return $self;
1366	}	1852	}
1367	}	1853	}
1368		1854
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1370	()	1856	()
1371	}	1857	}
1372		1858
1373	sub init {	1859	sub init {
1374	my ($self) = @_;	1860	my ($self) = @_;
…		…
1396		1882
1397	# the temporary/swap location	1883	# the temporary/swap location
1398	sub save_path {	1884	sub save_path {
1399	my ($self) = @_;	1885	my ($self) = @_;
1400		1886
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1888	"$TMPDIR/$path.map"
1403	}	1889	}
1404		1890
1405	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1406	sub uniq_path {	1892	sub uniq_path {
1407	my ($self) = @_;	1893	my ($self) = @_;
1408		1894
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	1896	"$UNIQUEDIR/$path"
1411	}	1897	}
1412		1898
1413	# and all this just because we cannot iterate over	1899	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	1900	my ($self) = @_;
1417		1901
1418	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1420	}	1905	}
1421		1906
1422	sub unlink_save {	1907	sub unlink_save {
1423	my ($self) = @_;	1908	my ($self) = @_;
1424		1909
…		…
1429		1914
1430	sub load_header_from($) {	1915	sub load_header_from($) {
1431	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1432		1917
1433	utf8::encode $path;	1918	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	1920	or return;
		1921
		1922	$self->_load_header ($f)
		1923	or return;
		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
1439		1927
1440	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1441		1929
1442	1	1930	1
1443	}	1931	}
…		…
1482	$self->load_header_orig	1970	$self->load_header_orig
1483	or return;	1971	or return;
1484	$self->prepare_orig;	1972	$self->prepare_orig;
1485	}	1973	}
1486		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
1487	$self->default_region (cf::region::find_by_path $self->{path})	1978	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1979	unless $self->default_region;
1489		1980
1490	1	1981	1
1491	}	1982	}
…		…
1494	sub find {	1985	sub find {
1495	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1496		1987
1497	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1498		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1500		1992
1501	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1504	or return;	1995	or return;
1505		1996
1506	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1507		1998
1508	$map->load_header	1999	$map->load_header
1509	or return;	2000	or return;
1510		2001
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1514	$map->reset;	2007	$map->reset;
1515	undef $guard;
1516	return find $path;	2008	return find $path;
1517	}	2009	}
1518		2010
1519	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1520	}	2012	}
…		…
1529	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1530		2022
1531	my $path = $self->{path};	2023	my $path = $self->{path};
1532		2024
1533	{	2025	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1535		2027
		2028	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2030
1538	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1539		2032
1540	$self->alloc;	2033	$self->alloc;
1541		2034
1542	$self->pre_load;	2035	$self->pre_load;
1543	Coro::cede;	2036	cf::cede_to_tick;
1544		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2040	$self->_load_objects ($f)
1546	or return;	2041	or return;
1547		2042
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1549	if delete $self->{load_original};	2044	if delete $self->{load_original};
1550		2045
1551	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2047	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2050	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1556	}	2054	}
1557	}	2055	}
1558		2056
1559	Coro::cede;	2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1560	# now do the right thing for maps	2060	# now do the right thing for maps
1561	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2063	unless $self->difficulty;
1564	Coro::cede;	2064	cf::cede_to_tick;
1565		2065
1566	unless ($self->{deny_activate}) {	2066	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2067	$self->decay_objects;
1568	$self->fix_auto_apply;	2068	$self->fix_auto_apply;
1569	$self->update_buttons;	2069	$self->update_buttons;
1570	Coro::cede;	2070	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2071	$self->activate;
1574	}	2072	}
1575		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2078	}
1578		2079
1579	$self->post_load;	2080	$self->post_load;
1580	}	2081	}
1581		2082
…		…
1583	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1584		2085
1585	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2087	if $self->per_player;
1587		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1588	$self	2092	$self
1589	}	2093	}
1590		2094
1591	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2096	sub load_neighbours {
1593	my ($map) = @_;	2097	my ($map) = @_;
1594		2098
1595	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1596		2100
1597	for (0 .. 3) {	2101	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1599	or next;	2103	or next;
1600	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1601	or next;	2105	or next;
1602	$neigh->load;	2106	$neigh->load;
1603		2107
		2108	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2111	}
1607		2112
1608	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1610	or next;	2116	or next;
1611	$neigh->load;	2117	$neigh->load;
1612	}	2118	}
1613	}	2119	}
1614		2120
…		…
1619	}	2125	}
1620		2126
1621	sub do_load_sync {	2127	sub do_load_sync {
1622	my ($map) = @_;	2128	my ($map) = @_;
1623		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1624	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1625	}	2134	}
1626		2135
1627	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1629		2138
1630	sub find_async {	2139	sub find_async {
1631	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1632		2141
1633	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1634		2143
1635	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2146	}
1638		2147
1639	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1640	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1641	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2155	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2156	$map->load if $v;
		2157	}
1646		2158
1647	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1648	}	2160	}
1649	}	2161	}
1650	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1651	};	2163	};
1652	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1655	}	2167	}
1656		2168
1657	sub save {	2169	sub save {
1658	my ($self) = @_;	2170	my ($self) = @_;
1659		2171
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1661		2173
1662	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1663		2175
1664	return unless $self->dirty;	2176	return unless $self->dirty;
1665		2177
…		…
1671	return if $self->{deny_save};	2183	return if $self->{deny_save};
1672		2184
1673	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1674		2186
1675	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1677	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1678		2193
1679	if ($uniq) {	2194	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2197	} else {
…		…
1688	my ($self) = @_;	2203	my ($self) = @_;
1689		2204
1690	# save first because save cedes	2205	# save first because save cedes
1691	$self->save;	2206	$self->save;
1692		2207
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2209
1695	return if $self->players;	2210	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1697	return if $self->{deny_save};	2212	return if $self->{deny_save};
1698		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1699	$self->clear;	2218	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2219	}
1702		2220
1703	sub reset_at {	2221	sub reset_at {
1704	my ($self) = @_;	2222	my ($self) = @_;
1705		2223
1706	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1709		2226
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2229
…		…
1723	my ($self) = @_;	2240	my ($self) = @_;
1724		2241
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2243
1727	return if $self->players;	2244	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2245
1730	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1731		2247
1732	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1733		2249
1734	# need to save uniques path	2250	# need to save uniques path
1735	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2255	if $uniq;
1740	}	2256	}
1741		2257
1742	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1743		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2262	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2263
1748	$self->unlink_save;	2264	$self->unlink_save;
1749	$self->destroy;	2265	$self->destroy;
1750	}	2266	}
1751		2267
1752	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1753		2269
1754	sub nuke {	2270	sub nuke {
1755	my ($self) = @_;	2271	my ($self) = @_;
1756		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1757	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1758		2277
1759	$self->unlink_save;	2278	$self->unlink_save;
1760		2279
1761	bless $self, "cf::map";	2280	bless $self, "cf::map";
1762	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2285
1767	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1768		2288
1769	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1770	}	2326	}
1771		2327
1772	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1773		2329
1774	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2331	instantiated unique items. May block.
1776		2332
1777	=cut	2333	=cut
1778		2334
1779	sub unique_maps() {	2335	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2336	[
1781	or return;	2337	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2338	utf8::decode $_;
1787	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2341	? ()
1790	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2344	]
1792
1793	\@paths
1794	}	2345	}
1795		2346
1796	package cf;	2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
		2374	}
		2375
		2376	\@maps
		2377	}
1797		2378
1798	=back	2379	=back
1799		2380
1800	=head3 cf::object	2381	=head3 cf::object
1801		2382
…		…
1805		2386
1806	=over 4	2387	=over 4
1807		2388
1808	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1809		2390
1810	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1811		2393
1812	=cut	2394	=cut
1813		2395
1814	sub inv_recursive_;	2396	sub inv_recursive_;
1815	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1818		2400
1819	sub inv_recursive {	2401	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1821	}	2403	}
1822		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1823	package cf;	2433	package cf;
1824		2434
1825	=back	2435	=back
1826		2436
1827	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1834	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1836		2446
1837	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1838		2462
1839	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2464	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1844		2468
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2470
1847	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1849	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1852	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1853	}	2496	}
1854		2497
1855	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1856		2499
1857	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1870		2513
1871	=item $player_object->enter_link	2514	=item $player_object->enter_link
1872		2515
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2517
1875	The player should be reasonably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1876	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1877		2522
1878	Will never block.	2523	Will never block.
1879		2524
1880	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1881		2526
…		…
1904	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1905		2550
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2552
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1910		2555
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1912	}	2557	}
1913		2558
1914	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1916		2563
1917	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1918		2565
1919	unless ($map) {	2566	unless ($map) {
1920	# restore original map position	2567	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1933		2580
1934	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1937		2584
1938	$map->load;	2585	$map->load;
1939	$map->load_diag;	2586	$map->load_neighbours;
1940		2587
1941	return unless $self->contr->active;	2588	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2589
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1946	}
1947		2592
1948	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2594	$self->activate_recursive;
1950	my ($pl) = @_;	2595	}
1951		2596
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961
1962	# try to abort aborted map switching on player login :)
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979
1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1981		2598
1982	Moves the player to the given map-path and coordinates by first freezing	2599	Moves the player to the given map-path and coordinates by first freezing
1983	her, loading and preparing them map, calling the provided $check callback	2600	her, loading and preparing them map, calling the provided $check callback
1984	that has to return the map if sucecssful, and then unfreezes the player on	2601	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2602	the new (success) or old (failed) map position. In either case, $done will
		2603	be called at the end of this process.
1986		2604
		2605	Note that $check will be called with a potentially non-loaded map, so if
		2606	it needs a loaded map it has to call C<< ->load >>.
		2607
1987	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1988		2611
1989	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1991		2617
1992	$self->enter_link;	2618	$self->enter_link;
1993		2619
1994	(async {	2620	(async {
		2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
1995	my $map = eval {	2642	my $map = eval {
1996	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
1997		2644
1998	if ($map) {	2645	if ($map) {
1999	$map = $map->customise_for ($self);	2646	$map = $map->customise_for ($self);
2000	$map = $check->($map) if $check && $map;	2647	$map = $check->($map) if $check && $map;
2001	} else {	2648	} else {
2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2003	}	2650	}
2004		2651
2005	$map	2652	$map
2006	};	2653	};
2007		2654
2008	if ($@) {	2655	if ($@) {
2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);	2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2010	LOG llevError | logBacktrace, Carp::longmess $@;	2657	LOG llevError | logBacktrace, Carp::longmess $@;
2011	}	2658	}
2012		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
2013	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
2014	})->prio (1);	2666	})->prio (1);
2015	}	2667	}
2016		2668
2017	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
2018		2670
…		…
2038	}	2690	}
2039		2691
2040	sub prepare_random_map {	2692	sub prepare_random_map {
2041	my ($exit) = @_;	2693	my ($exit) = @_;
2042		2694
2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
2044
2045	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
2046	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
2047	# that depends on the exit object	2697	# that depends on the exit object
2048		2698
2049	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
2051	if ($exit->map) {	2701	if ($exit->map) {
2052	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
2053	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
2054	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
2055	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
2056	}	2708	}
2057		2709
2058	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
2059		2711
2060	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2061	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
2062	my $meta = "$RANDOMDIR/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
2063		2715
2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2065	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
2066	undef $fh;	2718	undef $fh;
2067	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
2068		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
2069	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2070	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2071	}	2727	}
2072	}	2728	}
2073		2729
2074	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2075	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2076		2732
2077	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2078		2734
2079	if ($exit->slaying eq "/!") {
2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
2081	# the problem is that $exit might not survive long enough
2082	# so it needs to be done right now, right here
2083	cf::sync_job { prepare_random_map $exit };
2084	}
2085
2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2087	my $hp = $exit->stats->hp;
2088	my $sp = $exit->stats->sp;
2089
2090	$self->enter_link;	2735	$self->enter_link;
2091		2736
2092	(async {	2737	(async {
2093	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2094	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
		2747	prepare_random_map $exit
		2748	if $exit->slaying eq "/!";
		2749	}
		2750
		2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
		2754
2095	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2096		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
2097	1;	2761	1
2098	}) {	2762	}) {
2099	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2100	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
2101	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2102	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2103		2767
2104	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2123		2787
2124	utf8::encode $text;	2788	utf8::encode $text;
2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2126	}	2790	}
2127		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
2128	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2129		2980
2130	Sends an exti event to the client.	2981	Sends an ext event to the client.
2131		2982
2132	=cut	2983	=cut
2133		2984
2134	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2135	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2136		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2137	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2138	$self->send_packet ("ext " . cf::to_json \%msg);	2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
2139	}	3012	}
2140		3013
2141	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2142		3015
2143	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2145	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2146		3019
2147	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
2148	reliable at some point in the future.	3021	become reliable at some point in the future.
2149		3022
2150	=cut	3023	=cut
2151		3024
2152	sub cf::client::query {	3025	sub cf::client::query {
2153	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2161	utf8::encode $text;	3034	utf8::encode $text;
2162	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2163		3036
2164	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2165	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2166	}	3041	}
2167		3042
2168	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
2169	on_reply => sub {	3049	on_reply => sub {
2170	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2171		3051
2172	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2173	# get handled first	3053	# get handled first
…		…
2185	} else {	3065	} else {
2186	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2187	}	3067	}
2188	}	3068	}
2189	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
2190	);	3096	);
2191		3097
2192	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2193		3099
2194	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2235	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2236	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2237		3143
2238	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2239		3145
2240	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
2241		3151
2242	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2243		3153
2244	=pod	3154	=pod
2245		3155
2246	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2247		3157
2248	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2249	cf::object::player player	3163	cf::object::player
2250	cf::player peaceful	3164	player
2251	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2252		3171
2253	=cut	3172	=cut
2254		3173
2255	for (	3174	for (
2256	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2257	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2258	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2259	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2260	) {	3181	) {
2261	no strict 'refs';	3182	no strict 'refs';
2262	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2263	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2280	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2281		3202
2282	my $qcode = $code;	3203	my $qcode = $code;
2283	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2284	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2285		3208
2286	local $_;	3209	local $_;
2287	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2288		3211
2289	my $eval =	3212	my $eval =
…		…
2332	=back	3255	=back
2333		3256
2334	=cut	3257	=cut
2335		3258
2336	#############################################################################	3259	#############################################################################
2337
2338	=head2 EXTENSION DATABASE SUPPORT
2339
2340	Crossfire maintains a very simple database for extension use. It can
2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2342	convert to/from binary).
2343
2344	The parameter C<$family> should best start with the name of the extension
2345	using it, it should be unique.
2346
2347	=over 4
2348
2349	=item $value = cf::db_get $family => $key
2350
2351	Returns a single value from the database.
2352
2353	=item cf::db_put $family => $key => $value
2354
2355	Stores the given C<$value> in the family.
2356
2357	=cut
2358
2359	our $DB;
2360
2361	sub db_init {
2362	unless ($DB) {
2363	$DB = BDB::db_create $DB_ENV;
2364
2365	cf::sync_job {
2366	eval {
2367	$DB->set_flags (BDB::CHKSUM);
2368
2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2371	cf::cleanup "db_open(db): $!" if $!;
2372	};
2373	cf::cleanup "db_open(db): $@" if $@;
2374	};
2375	}
2376	}
2377
2378	sub db_get($$) {
2379	my $key = "$_[0]/$_[1]";
2380
2381	cf::sync_job {
2382	BDB::db_get $DB, undef, $key, my $data;
2383
2384	$! ? ()
2385	: $data
2386	}
2387	}
2388
2389	sub db_put($$$) {
2390	BDB::dbreq_pri 4;
2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2392	}
2393
2394	=item cf::cache $id => [$paths...], $processversion => $process
2395
2396	Generic caching function that returns the value of the resource $id,
2397	caching and regenerating as required.
2398
2399	This function can block.
2400
2401	=cut
2402
2403	sub cache {
2404	my ($id, $src, $processversion, $process) = @_;
2405
2406	my $meta =
2407	join "\x00",
2408	$processversion,
2409	map {
2410	aio_stat $_
2411	and Carp::croak "$_: $!";
2412
2413	($_, (stat _)[7,9])
2414	} @$src;
2415
2416	my $dbmeta = db_get cache => "$id/meta";
2417	if ($dbmeta ne $meta) {
2418	# changed, we may need to process
2419
2420	my @data;
2421	my $md5;
2422
2423	for (0 .. $#$src) {
2424	0 <= aio_load $src->[$_], $data[$_]
2425	or Carp::croak "$src->[$_]: $!";
2426	}
2427
2428	# if processing is expensive, check
2429	# checksum first
2430	if (1) {
2431	$md5 =
2432	join "\x00",
2433	$processversion,
2434	map {
2435	Coro::cede;
2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
2437	} 0.. $#$src;
2438
2439
2440	my $dbmd5 = db_get cache => "$id/md5";
2441	if ($dbmd5 eq $md5) {
2442	db_put cache => "$id/meta", $meta;
2443
2444	return db_get cache => "$id/data";
2445	}
2446	}
2447
2448	my $t1 = Time::HiRes::time;
2449	my $data = $process->(\@data);
2450	my $t2 = Time::HiRes::time;
2451
2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2453
2454	db_put cache => "$id/data", $data;
2455	db_put cache => "$id/md5" , $md5;
2456	db_put cache => "$id/meta", $meta;
2457
2458	return $data;
2459	}
2460
2461	db_get cache => "$id/data"
2462	}
2463
2464	=item fork_call { }, $args
2465
2466	Executes the given code block with the given arguments in a seperate
2467	process, returning the results. Everything must be serialisable with
2468	Coro::Storable. May, of course, block. Note that the executed sub may
2469	never block itself or use any form of Event handling.
2470
2471	=cut
2472
2473	sub fork_call(&@) {
2474	my ($cb, @args) = @_;
2475
2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2477	# or die "socketpair: $!";
2478	pipe my $fh1, my $fh2
2479	or die "pipe: $!";
2480
2481	if (my $pid = fork) {
2482	close $fh2;
2483
2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2485	$res = Coro::Storable::thaw $res;
2486
2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2488
2489	die $$res unless "ARRAY" eq ref $res;
2490
2491	return wantarray ? @$res : $res->[-1];
2492	} else {
2493	reset_signals;
2494	local $SIG{__WARN__};
2495	local $SIG{__DIE__};
2496	eval {
2497	close $fh1;
2498
2499	my @res = eval { $cb->(@args) };
2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2501	};
2502
2503	warn $@ if $@;
2504	_exit 0;
2505	}
2506	}
2507
2508
2509
2510	#############################################################################
2511	# the server's init and main functions	3260	# the server's init and main functions
2512		3261
2513	sub load_facedata($) {	3262	sub load_facedata($) {
2514	my ($path) = @_;	3263	my ($path) = @_;
		3264
		3265	# HACK to clear player env face cache, we need some signal framework
		3266	# for this (global event?)
		3267	%ext::player_env::MUSIC_FACE_CACHE = ();
		3268
		3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2515		3270
2516	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2517		3272
2518	my $facedata;	3273	my $facedata;
2519	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
…		…
2522	$facedata = Coro::Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2523		3278
2524	$facedata->{version} == 2	3279	$facedata->{version} == 2
2525	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2526		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
2527	{	3289	{
2528	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2529		3291
2530	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2535	Coro::cede;	3299
		3300	cf::cede_to_tick;
2536	}	3301	}
2537		3302
2538	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2539	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2540	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2541	or next;	3307	or next;
		3308
2542	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2544	} else {	3312	} else {
2545	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2546	}	3314	}
2547	Coro::cede;	3315
		3316	cf::cede_to_tick;
2548	}	3317	}
2549	}	3318	}
2550		3319
2551	{	3320	{
2552	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2553		3322
2554	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2555	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2556	Coro::cede;	3325	cf::cede_to_tick;
2557	}	3326	}
2558		3327
2559	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2560	}	3329	}
2561		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
2562	1	3366	1
2563	}	3367	}
2564		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
2565	sub reload_regions {	3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
2566	load_resource_file "$MAPDIR/regions"	3412	load_resource_file "$MAPDIR/regions"
2567	or die "unable to load regions file\n";	3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
2568	}	3419	}
2569		3420
2570	sub reload_facedata {	3421	sub reload_facedata {
2571	load_facedata "$DATADIR/facedata"	3422	load_facedata "$DATADIR/facedata"
2572	or die "unable to load facedata\n";	3423	or die "unable to load facedata\n";
…		…
2583	}	3434	}
2584		3435
2585	sub reload_resources {	3436	sub reload_resources {
2586	warn "reloading resource files...\n";	3437	warn "reloading resource files...\n";
2587		3438
2588	reload_regions;
2589	reload_facedata;	3439	reload_facedata;
2590	reload_archetypes;	3440	reload_archetypes;
		3441	reload_regions;
2591	reload_treasures;	3442	reload_treasures;
2592		3443
2593	warn "finished reloading resource files\n";	3444	warn "finished reloading resource files\n";
2594	}	3445	}
2595		3446
2596	sub init {	3447	sub reload_config {
2597	reload_resources;	3448	warn "reloading config file...\n";
2598	}
2599		3449
2600	sub cfg_load {
2601	open my $fh, "<:utf8", "$CONFDIR/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2602	or return;	3451	or return;
2603		3452
2604	local $/;	3453	local $/;
2605	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2606		3455
2607	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2608		3457
2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2615	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2616	};	3465	};
2617	warn $@ if $@;	3466	warn $@ if $@;
2618	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2619	}	3498	}
2620		3499
2621	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2622	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2623	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2625	(async {	3518	(async {
2626	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2627	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2628	};	3522	};
2629		3523
2630	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	cf::load_settings;
		3528	cf::load_materials;
		3529
		3530	reload_resources;
		3531	reload_config;
2631	db_init;	3532	db_init;
		3533
		3534	cf::init_uuid;
		3535	cf::init_signals;
		3536	cf::init_commands;
		3537	cf::init_skills;
		3538
		3539	cf::init_beforeplay;
		3540
		3541	atomic;
		3542
2632	load_extensions;	3543	load_extensions;
2633		3544
2634	$TICK_WATCHER->start;	3545	utime time, time, $RUNTIMEFILE;
2635	Event::loop;	3546
		3547	# no (long-running) fork's whatsoever before this point(!)
		3548	use POSIX ();
		3549	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3550
		3551	(pop @POST_INIT)->(0) while @POST_INIT;
		3552	};
		3553
		3554	main_loop;
2636	}	3555	}
2637		3556
2638	#############################################################################	3557	#############################################################################
2639	# initialisation and cleanup	3558	# initialisation and cleanup
2640		3559
2641	# install some emergency cleanup handlers	3560	# install some emergency cleanup handlers
2642	BEGIN {	3561	BEGIN {
		3562	our %SIGWATCHER = ();
2643	for my $signal (qw(INT HUP TERM)) {	3563	for my $signal (qw(INT HUP TERM)) {
2644	Event->signal (	3564	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2645	reentrant => 0,
2646	data => WF_AUTOCANCEL,
2647	signal => $signal,
2648	prio => 0,
2649	cb => sub {
2650	cf::cleanup "SIG$signal";	3565	cf::cleanup "SIG$signal";
2651	},
2652	);	3566	};
		3567	}
		3568	}
		3569
		3570	sub write_runtime_sync {
		3571	# first touch the runtime file to show we are still running:
		3572	# the fsync below can take a very very long time.
		3573
		3574	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3575
		3576	my $guard = cf::lock_acquire "write_runtime";
		3577
		3578	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3579	or return;
		3580
		3581	my $value = $cf::RUNTIME + 90 + 10;
		3582	# 10 is the runtime save interval, for a monotonic clock
		3583	# 60 allows for the watchdog to kill the server.
		3584
		3585	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3586	and return;
		3587
		3588	# always fsync - this file is important
		3589	aio_fsync $fh
		3590	and return;
		3591
		3592	# touch it again to show we are up-to-date
		3593	aio_utime $fh, undef, undef;
		3594
		3595	close $fh
		3596	or return;
		3597
		3598	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3599	and return;
		3600
		3601	warn "runtime file written.\n";
		3602
2653	}	3603	1
		3604	}
		3605
		3606	our $uuid_lock;
		3607	our $uuid_skip;
		3608
		3609	sub write_uuid_sync($) {
		3610	$uuid_skip ||= $_[0];
		3611
		3612	return if $uuid_lock;
		3613	local $uuid_lock = 1;
		3614
		3615	my $uuid = "$LOCALDIR/uuid";
		3616
		3617	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3618	or return;
		3619
		3620	my $value = uuid_seq uuid_cur;
		3621
		3622	unless ($value) {
		3623	warn "cowardly refusing to write zero uuid value!\n";
		3624	return;
		3625	}
		3626
		3627	my $value = uuid_str $value + $uuid_skip;
		3628	$uuid_skip = 0;
		3629
		3630	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3631	and return;
		3632
		3633	# always fsync - this file is important
		3634	aio_fsync $fh
		3635	and return;
		3636
		3637	close $fh
		3638	or return;
		3639
		3640	aio_rename "$uuid~", $uuid
		3641	and return;
		3642
		3643	warn "uuid file written ($value).\n";
		3644
		3645	1
		3646
		3647	}
		3648
		3649	sub write_uuid($$) {
		3650	my ($skip, $sync) = @_;
		3651
		3652	$sync ? write_uuid_sync $skip
		3653	: async { write_uuid_sync $skip };
2654	}	3654	}
2655		3655
2656	sub emergency_save() {	3656	sub emergency_save() {
2657	my $freeze_guard = cf::freeze_mainloop;	3657	my $freeze_guard = cf::freeze_mainloop;
2658		3658
2659	warn "enter emergency perl save\n";	3659	warn "emergency_perl_save: enter\n";
2660		3660
2661	cf::sync_job {	3661	cf::sync_job {
		3662	# this is a trade-off: we want to be very quick here, so
		3663	# save all maps without fsync, and later call a global sync
		3664	# (which in turn might be very very slow)
		3665	local $USE_FSYNC = 0;
		3666
2662	# use a peculiar iteration method to avoid tripping on perl	3667	# use a peculiar iteration method to avoid tripping on perl
2663	# refcount bugs in for. also avoids problems with players	3668	# refcount bugs in for. also avoids problems with players
2664	# and maps saved/destroyed asynchronously.	3669	# and maps saved/destroyed asynchronously.
2665	warn "begin emergency player save\n";	3670	warn "emergency_perl_save: begin player save\n";
2666	for my $login (keys %cf::PLAYER) {	3671	for my $login (keys %cf::PLAYER) {
2667	my $pl = $cf::PLAYER{$login} or next;	3672	my $pl = $cf::PLAYER{$login} or next;
2668	$pl->valid or next;	3673	$pl->valid or next;
		3674	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2669	$pl->save;	3675	$pl->save;
2670	}	3676	}
2671	warn "end emergency player save\n";	3677	warn "emergency_perl_save: end player save\n";
2672		3678
2673	warn "begin emergency map save\n";	3679	warn "emergency_perl_save: begin map save\n";
2674	for my $path (keys %cf::MAP) {	3680	for my $path (keys %cf::MAP) {
2675	my $map = $cf::MAP{$path} or next;	3681	my $map = $cf::MAP{$path} or next;
2676	$map->valid or next;	3682	$map->valid or next;
2677	$map->save;	3683	$map->save;
2678	}	3684	}
2679	warn "end emergency map save\n";	3685	warn "emergency_perl_save: end map save\n";
2680		3686
2681	warn "begin emergency database checkpoint\n";	3687	warn "emergency_perl_save: begin database checkpoint\n";
2682	BDB::db_env_txn_checkpoint $DB_ENV;	3688	BDB::db_env_txn_checkpoint $DB_ENV;
2683	warn "end emergency database checkpoint\n";	3689	warn "emergency_perl_save: end database checkpoint\n";
		3690
		3691	warn "emergency_perl_save: begin write uuid\n";
		3692	write_uuid_sync 1;
		3693	warn "emergency_perl_save: end write uuid\n";
2684	};	3694	};
2685		3695
		3696	warn "emergency_perl_save: starting sync()\n";
		3697	IO::AIO::aio_sync sub {
		3698	warn "emergency_perl_save: finished sync()\n";
		3699	};
		3700
2686	warn "leave emergency perl save\n";	3701	warn "emergency_perl_save: leave\n";
2687	}	3702	}
2688		3703
2689	sub post_cleanup {	3704	sub post_cleanup {
2690	my ($make_core) = @_;	3705	my ($make_core) = @_;
2691		3706
2692	warn Carp::longmess "post_cleanup backtrace"	3707	warn Carp::longmess "post_cleanup backtrace"
2693	if $make_core;	3708	if $make_core;
		3709
		3710	my $fh = pidfile;
		3711	unlink $PIDFILE if <$fh> == $$;
		3712	}
		3713
		3714	# a safer delete_package, copied from Symbol
		3715	sub clear_package($) {
		3716	my $pkg = shift;
		3717
		3718	# expand to full symbol table name if needed
		3719	unless ($pkg =~ /^main::.*::$/) {
		3720	$pkg = "main$pkg" if $pkg =~ /^::/;
		3721	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3722	$pkg .= '::' unless $pkg =~ /::$/;
		3723	}
		3724
		3725	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3726	my $stem_symtab = *{$stem}{HASH};
		3727
		3728	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3729	or return;
		3730
		3731	# clear all symbols
		3732	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3733	for my $name (keys %$leaf_symtab) {
		3734	_gv_clear *{"$pkg$name"};
		3735	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3736	}
		3737	warn "cleared package $pkg\n";#d#
2694	}	3738	}
2695		3739
2696	sub do_reload_perl() {	3740	sub do_reload_perl() {
2697	# can/must only be called in main	3741	# can/must only be called in main
2698	if ($Coro::current != $Coro::main) {	3742	if ($Coro::current != $Coro::main) {
2699	warn "can only reload from main coroutine";	3743	warn "can only reload from main coroutine";
2700	return;	3744	return;
2701	}	3745	}
2702		3746
		3747	return if $RELOAD++;
		3748
		3749	my $t1 = EV::time;
		3750
		3751	while ($RELOAD) {
2703	warn "reloading...";	3752	warn "reloading...";
2704		3753
2705	warn "entering sync_job";	3754	warn "entering sync_job";
2706		3755
2707	cf::sync_job {	3756	cf::sync_job {
2708	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2709	cf::emergency_save;	3758	cf::emergency_save;
2710	cf::write_runtime; # external watchdog should not bark	3759	cf::write_runtime_sync; # external watchdog should not bark
2711		3760
2712	warn "syncing database to disk";	3761	warn "syncing database to disk";
2713	BDB::db_env_txn_checkpoint $DB_ENV;	3762	BDB::db_env_txn_checkpoint $DB_ENV;
2714		3763
2715	# if anything goes wrong in here, we should simply crash as we already saved	3764	# if anything goes wrong in here, we should simply crash as we already saved
2716		3765
2717	warn "cancelling all WF_AUTOCANCEL watchers";
2718	for (Event::all_watchers) {
2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2720	}
2721
2722	warn "flushing outstanding aio requests";	3766	warn "flushing outstanding aio requests";
2723	for (;;) {
2724	BDB::flush;
2725	IO::AIO::flush;
2726	Coro::cede;
2727	last unless IO::AIO::nreqs || BDB::nreqs;	3767	while (IO::AIO::nreqs || BDB::nreqs) {
2728	warn "iterate...";	3768	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2729	}
2730
2731	++$RELOAD;
2732
2733	warn "cancelling all extension coros";
2734	$_->cancel for values %EXT_CORO;
2735	%EXT_CORO = ();
2736
2737	warn "removing commands";
2738	%COMMAND = ();
2739
2740	warn "removing ext commands";
2741	%EXTCMD = ();
2742
2743	warn "unloading/nuking all extensions";
2744	for my $pkg (@EXTS) {
2745	warn "... unloading $pkg";
2746
2747	if (my $cb = $pkg->can ("unload")) {
2748	eval {
2749	$cb->($pkg);
2750	1
2751	} or warn "$pkg unloaded, but with errors: $@";
2752	}	3769	}
2753		3770
2754	warn "... nuking $pkg";	3771	warn "cancelling all extension coros";
2755	Symbol::delete_package $pkg;	3772	$_->cancel for values %EXT_CORO;
2756	}	3773	%EXT_CORO = ();
2757		3774
2758	warn "unloading all perl modules loaded from $LIBDIR";	3775	warn "removing commands";
2759	while (my ($k, $v) = each %INC) {	3776	%COMMAND = ();
2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2761		3777
		3778	warn "removing ext/exti commands";
		3779	%EXTCMD = ();
		3780	%EXTICMD = ();
		3781
		3782	warn "unloading/nuking all extensions";
		3783	for my $pkg (@EXTS) {
2762	warn "... unloading $k";	3784	warn "... unloading $pkg";
2763	delete $INC{$k};
2764		3785
2765	$k =~ s/\.pm$//;
2766	$k =~ s/\//::/g;
2767
2768	if (my $cb = $k->can ("unload_module")) {	3786	if (my $cb = $pkg->can ("unload")) {
		3787	eval {
2769	$cb->();	3788	$cb->($pkg);
		3789	1
		3790	} or warn "$pkg unloaded, but with errors: $@";
		3791	}
		3792
		3793	warn "... clearing $pkg";
		3794	clear_package $pkg;
2770	}	3795	}
2771		3796
2772	Symbol::delete_package $k;	3797	warn "unloading all perl modules loaded from $LIBDIR";
		3798	while (my ($k, $v) = each %INC) {
		3799	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3800
		3801	warn "... unloading $k";
		3802	delete $INC{$k};
		3803
		3804	$k =~ s/\.pm$//;
		3805	$k =~ s/\//::/g;
		3806
		3807	if (my $cb = $k->can ("unload_module")) {
		3808	$cb->();
		3809	}
		3810
		3811	clear_package $k;
2773	}	3812	}
2774		3813
2775	warn "getting rid of safe::, as good as possible";	3814	warn "getting rid of safe::, as good as possible";
2776	Symbol::delete_package "safe::$_"	3815	clear_package "safe::$_"
2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3816	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2778		3817
2779	warn "unloading cf.pm \"a bit\"";	3818	warn "unloading cf.pm \"a bit\"";
2780	delete $INC{"cf.pm"};	3819	delete $INC{"cf.pm"};
2781	delete $INC{"cf/pod.pm"};	3820	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2782		3821
2783	# don't, removes xs symbols, too,	3822	# don't, removes xs symbols, too,
2784	# and global variables created in xs	3823	# and global variables created in xs
2785	#Symbol::delete_package __PACKAGE__;	3824	#clear_package __PACKAGE__;
2786		3825
2787	warn "unload completed, starting to reload now";	3826	warn "unload completed, starting to reload now";
2788		3827
2789	warn "reloading cf.pm";	3828	warn "reloading cf.pm";
2790	require cf;	3829	require cf;
2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3830	cf::_connect_to_perl_1;
2792		3831
2793	warn "loading config and database again";	3832	warn "loading config and database again";
2794	cf::cfg_load;	3833	cf::reload_config;
2795		3834
2796	warn "loading extensions";	3835	warn "loading extensions";
2797	cf::load_extensions;	3836	cf::load_extensions;
2798		3837
		3838	if ($REATTACH_ON_RELOAD) {
2799	warn "reattaching attachments to objects/players";	3839	warn "reattaching attachments to objects/players";
2800	_global_reattach; # objects, sockets	3840	_global_reattach; # objects, sockets
2801	warn "reattaching attachments to maps";	3841	warn "reattaching attachments to maps";
2802	reattach $_ for values %MAP;	3842	reattach $_ for values %MAP;
2803	warn "reattaching attachments to players";	3843	warn "reattaching attachments to players";
2804	reattach $_ for values %PLAYER;	3844	reattach $_ for values %PLAYER;
		3845	}
2805		3846
		3847	warn "running post_init jobs";
		3848	(pop @POST_INIT)->(1) while @POST_INIT;
		3849
2806	warn "leaving sync_job";	3850	warn "leaving sync_job";
2807		3851
2808	1	3852	1
2809	} or do {	3853	} or do {
2810	warn $@;	3854	warn $@;
2811	warn "error while reloading, exiting.";	3855	cf::cleanup "error while reloading, exiting.";
2812	exit 1;
2813	};	3856	};
2814		3857
2815	warn "reloaded";	3858	warn "reloaded";
		3859	--$RELOAD;
		3860	}
		3861
		3862	$t1 = EV::time - $t1;
		3863	warn "reload completed in ${t1}s\n";
2816	};	3864	};
2817		3865
2818	our $RELOAD_WATCHER; # used only during reload	3866	our $RELOAD_WATCHER; # used only during reload
2819		3867
2820	sub reload_perl() {	3868	sub reload_perl() {
2821	# doing reload synchronously and two reloads happen back-to-back,	3869	# doing reload synchronously and two reloads happen back-to-back,
2822	# coro crashes during coro_state_free->destroy here.	3870	# coro crashes during coro_state_free->destroy here.
2823		3871
2824	$RELOAD_WATCHER ||= Event->timer (	3872	$RELOAD_WATCHER ||= cf::async {
2825	reentrant => 0,	3873	Coro::AIO::aio_wait cache_extensions;
2826	after => 0,	3874
2827	data => WF_AUTOCANCEL,	3875	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2828	cb => sub {
2829	do_reload_perl;	3876	do_reload_perl;
2830	undef $RELOAD_WATCHER;	3877	undef $RELOAD_WATCHER;
2831	},	3878	};
2832	);	3879	};
2833	}	3880	}
2834		3881
2835	register_command "reload" => sub {	3882	register_command "reload" => sub {
2836	my ($who, $arg) = @_;	3883	my ($who, $arg) = @_;
2837		3884
2838	if ($who->flag (FLAG_WIZ)) {	3885	if ($who->flag (FLAG_WIZ)) {
2839	$who->message ("reloading server.");	3886	$who->message ("reloading server.");
		3887	async {
		3888	$Coro::current->{desc} = "perl_reload";
2840	async { reload_perl };	3889	reload_perl;
		3890	};
2841	}	3891	}
2842	};	3892	};
2843		3893
2844	unshift @INC, $LIBDIR;	3894	unshift @INC, $LIBDIR;
2845		3895
…		…
2847		3897
2848	our @WAIT_FOR_TICK;	3898	our @WAIT_FOR_TICK;
2849	our @WAIT_FOR_TICK_BEGIN;	3899	our @WAIT_FOR_TICK_BEGIN;
2850		3900
2851	sub wait_for_tick {	3901	sub wait_for_tick {
2852	return unless $TICK_WATCHER->is_active;
2853	return if $Coro::current == $Coro::main;	3902	return if tick_inhibit || $Coro::current == $Coro::main;
2854		3903
2855	my $signal = new Coro::Signal;	3904	my $signal = new Coro::Signal;
2856	push @WAIT_FOR_TICK, $signal;	3905	push @WAIT_FOR_TICK, $signal;
2857	$signal->wait;	3906	$signal->wait;
2858	}	3907	}
2859		3908
2860	sub wait_for_tick_begin {	3909	sub wait_for_tick_begin {
2861	return unless $TICK_WATCHER->is_active;
2862	return if $Coro::current == $Coro::main;	3910	return if tick_inhibit || $Coro::current == $Coro::main;
2863		3911
2864	my $signal = new Coro::Signal;	3912	my $signal = new Coro::Signal;
2865	push @WAIT_FOR_TICK_BEGIN, $signal;	3913	push @WAIT_FOR_TICK_BEGIN, $signal;
2866	$signal->wait;	3914	$signal->wait;
2867	}	3915	}
2868		3916
2869	my $min = 1e6;#d#	3917	sub tick {
2870	my $avg = 10;
2871	$TICK_WATCHER = Event->timer (
2872	reentrant => 0,
2873	parked => 1,
2874	prio => 0,
2875	at => $NEXT_TICK || $TICK,
2876	data => WF_AUTOCANCEL,
2877	cb => sub {
2878	if ($Coro::current != $Coro::main) {	3918	if ($Coro::current != $Coro::main) {
2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3919	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2880	unless ++$bug_warning > 10;	3920	unless ++$bug_warning > 10;
2881	return;	3921	return;
2882	}	3922	}
2883		3923
2884	$NOW = $tick_start = Event::time;
2885
2886	cf::server_tick; # one server iteration	3924	cf::server_tick; # one server iteration
2887		3925
2888	0 && sync_job {#d#	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2889	for(1..10) {	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2890	my $t = Event::time;	3928	Coro::async_pool {
2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"	3929	$Coro::current->{desc} = "runtime saver";
2892	or die;	3930	write_runtime_sync
2893		3931	or warn "ERROR: unable to write runtime file: $!";
2894	$map->width (50);
2895	$map->height (50);
2896	$map->alloc;
2897	$map->_load_objects ("/tmp/x.map", 1);
2898	my $t = Event::time - $t;
2899
2900	#next unless $t < 0.0013;#d#
2901	if ($t < $min) {
2902	$min = $t;
2903	}
2904	$avg = $avg * 0.99 + $t * 0.01;
2905	}
2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2907	exit 0;
2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2909	};	3932	};
		3933	}
2910		3934
2911	$RUNTIME += $TICK;
2912	$NEXT_TICK += $TICK;
2913
2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
2916	Coro::async_pool {
2917	write_runtime
2918	or warn "ERROR: unable to write runtime file: $!";
2919	};
2920	}
2921
2922	# my $AFTER = Event::time;
2923	# warn $AFTER - $NOW;#d#
2924
2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2926	$sig->send;	3936	$sig->send;
2927	}	3937	}
2928	while (my $sig = shift @WAIT_FOR_TICK) {	3938	while (my $sig = shift @WAIT_FOR_TICK) {
2929	$sig->send;	3939	$sig->send;
2930	}	3940	}
2931		3941
2932	$NOW = Event::time;	3942	$LOAD = ($NOW - $TICK_START) / $TICK;
2933
2934	# if we are delayed by four ticks or more, skip them all
2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2936
2937	$TICK_WATCHER->at ($NEXT_TICK);
2938	$TICK_WATCHER->start;
2939
2940	$LOAD = ($NOW - $tick_start) / $TICK;
2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2942		3944
2943	_post_tick;	3945	if (0) {
2944		3946	if ($NEXT_TICK) {
2945		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
2946	},	3951	}
2947	);	3952	}
2948		3953
2949	{	3954	{
2950	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2951	$BDB_POLL_WATCHER = Event->io (	3956
2952	reentrant => 0,
2953	fd => BDB::poll_fileno,
2954	poll => 'r',
2955	prio => 0,
2956	data => WF_AUTOCANCEL,
2957	cb => \&BDB::poll_cb,
2958	);
2959	BDB::min_parallel 8;	3957	BDB::min_parallel 8;
2960		3958	BDB::max_poll_reqs $TICK * 0.1;
2961	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2962	my $status;
2963	my $current = $Coro::current;
2964	(
2965	sub {
2966	$status = $!;
2967	$current->ready; undef $current;
2968	},
2969	sub {
2970	Coro::schedule while defined $current;
2971	$! = $status;
2972	},
2973	)
2974	};
2975		3960
2976	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2977	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2978		3968
2979	cf::sync_job {	3969	cf::sync_job {
2980	eval {	3970	eval {
2981	BDB::db_env_open	3971	BDB::db_env_open
2982	$DB_ENV,	3972	$DB_ENV,
…		…
2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2986	0666;	3976	0666;
2987		3977
2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2989
2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2991	$DB_ENV->set_lk_detect;
2992	};	3979	};
2993		3980
2994	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2995	};	3982	};
2996	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2997	}	3994	}
2998		3995
2999	{	3996	{
		3997	# configure IO::AIO
		3998
3000	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
3001
3002	undef $Coro::AIO::WATCHER;
3003	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
3004	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
3005	reentrant => 0,
3006	data => WF_AUTOCANCEL,
3007	fd => IO::AIO::poll_fileno,
3008	poll => 'r',
3009	prio => 6,
3010	cb => \&IO::AIO::poll_cb,
3011	);
3012	}	4002	}
3013		4003
3014	my $_log_backtrace;	4004	my $_log_backtrace;
3015		4005
3016	sub _log_backtrace {	4006	sub _log_backtrace {
…		…
3019	$msg =~ s/\n//;	4009	$msg =~ s/\n//;
3020		4010
3021	# limit the # of concurrent backtraces	4011	# limit the # of concurrent backtraces
3022	if ($_log_backtrace < 2) {	4012	if ($_log_backtrace < 2) {
3023	++$_log_backtrace;	4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
3024	async {	4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
3025	my @bt = fork_call {	4018	my @bt = fork_call {
3026	@addr = map { sprintf "%x", $_ } @addr;	4019	@addr = map { sprintf "%x", $_ } @addr;
3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3029	or die "addr2line: $!";	4022	or die "addr2line: $!";
…		…
3037	}	4030	}
3038		4031
3039	@funcs	4032	@funcs
3040	};	4033	};
3041		4034
3042	LOG llevInfo, "[ABT] $msg\n";	4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3043	LOG llevInfo, "[ABT] $_\n" for @bt;	4037	LOG llevInfo, "[ABT] $_\n" for @bt;
3044	--$_log_backtrace;	4038	--$_log_backtrace;
3045	};	4039	};
3046	} else {	4040	} else {
3047	LOG llevInfo, "[ABT] $msg\n";	4041	LOG llevInfo, "[ABT] $msg\n";
3048	LOG llevInfo, "[ABT] [suppressed]\n";	4042	LOG llevInfo, "[ABT] [suppressed]\n";
3049	}	4043	}
3050	}	4044	}
3051		4045
3052	# load additional modules	4046	# load additional modules
3053	use cf::pod;	4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
3054		4049
3055	END { cf::emergency_save }	4050	END { cf::emergency_save }
3056		4051
3057	1	4052	1
3058		4053

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