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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC vs.
Revision 1.513 by root, Mon Apr 12 05:22:38 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
71		115
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	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	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	118	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
82		127
83	our %CFG;	128	our %CFG;
84		129
85	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
87		133
88	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
91		137
92	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		140
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
98		150
99	binmode STDOUT;	151	binmode STDOUT;
100	binmode STDERR;	152	binmode STDERR;
101		153
102	# read virtual server time, if available	154	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	156	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
107	}	159	}
		160
		161	eval "sub TICK() { $TICK } 1" or die;
108		162
109	mkdir $_	163	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		165
112	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
113		167
114	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		180
116	#############################################################################	181	#############################################################################
117		182
118	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
119		184
…		…
155		220
156	The raw value load value from the last tick.	221	The raw value load value from the last tick.
157		222
158	=item %cf::CFG	223	=item %cf::CFG
159		224
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	226	from wherever your confdir points to.
162		227
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		229
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	230	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	231	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.	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
169	=back	246	=back
170		247
171	=cut	248	=cut
172		249
173	BEGIN {	250	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	251	my $msg = join "", @_;
176		252
177	$msg .= "\n"	253	$msg .= "\n"
178	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
179		255
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		257
182	utf8::encode $msg;
183	LOG llevError, $msg;	258	LOG llevError, $msg;
184	};	259	};
185	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
186		274
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		282
194	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	284	# within the Safe compartment.
196	for my $pkg (qw(	285	for my $pkg (qw(
197	cf::global cf::attachable	286	cf::global cf::attachable
198	cf::object cf::object::player	287	cf::object cf::object::player
199	cf::client cf::player	288	cf::client cf::player
200	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
201	cf::map cf::party cf::region	291	cf::party cf::region
202	)) {	292	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	294	}
206		295
207	$Event::DIED = sub {	296	$EV::DIED = sub {
208	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
209	};	298	};
		299
		300	#############################################################################
210		301
211	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
212		303
213	=over 4	304	=over 4
214		305
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	325	$d
235	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
236	}	327	}
237		328
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
241		330
242	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
243		332
244	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
245		334
246	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
247		336
		337	=cut
		338
		339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		340
		341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
		356	}
		357
248	=item cf::lock_wait $string	358	=item cf::lock_wait $string
249		359
250	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
251		361
252	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
253		363
254	Wait until the given lock is available and then acquires it and returns	364	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,	365	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	366	for example when the coroutine gets canceled), the lock is automatically
257	returned.	367	returned.
258		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
259	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
261		374
262	=item $locked = cf::lock_active $string	375	=item $locked = cf::lock_active $string
263		376
264	Return true if the lock is currently active, i.e. somebody has locked it.	377	Return true if the lock is currently active, i.e. somebody has locked it.
265		378
266	=cut	379	=cut
267		380
268	our %LOCK;	381	our $LOCKS = new Coro::SemaphoreSet;
269		382
270	sub lock_wait($) {	383	sub lock_wait($) {
271	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	385	}
279		386
280	sub lock_acquire($) {	387	sub lock_acquire($) {
281	my ($key) = @_;	388	$LOCKS->guard ($_[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	}	389	}
293		390
294	sub lock_active($) {	391	sub lock_active($) {
295	my ($key) = @_;	392	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	393	}
299		394
300	sub freeze_mainloop {	395	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
302		397
303	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
305	};	465	}
306	$TICK_WATCHER->stop;	466	};
307	$guard	467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
308	}	481	}
309		482
310	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
311		484
312	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		490
318	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
319		492
320	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
321		494
322	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
325		499
326	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
329	fast or be very important.	503	fast or be very important.
…		…
332		506
333	sub sync_job(&) {	507	sub sync_job(&) {
334	my ($job) = @_;	508	my ($job) = @_;
335		509
336	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	511	my $time = AE::time;
338		512
339	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
341		515
342	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	517
344	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
345		519
346	my $busy = 1;	520	my $busy = 1;
347	my @res;	521	my @res;
348		522
349	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	525	@res = eval { $job->() };
351	warn $@ if $@;	526	warn $@ if $@;
352	undef $busy;	527	undef $busy;
353	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
354		529
355	while ($busy) {	530	while ($busy) {
356	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
357	}	535	}
		536	}
358		537
359	$time = Event::time - $time;	538	my $time = AE::time - $time;
360		539
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	540	$TICK_START += $time; # do not account sync jobs to server load
365		541
366	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
367	} else {	543	} else {
368	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
369		545
…		…
389	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
390		566
391	$coro	567	$coro
392	}	568	}
393		569
394	sub write_runtime {	570	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		571
397	# first touch the runtime file to show we are still running:	572	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
399		576
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	577	=cut
401	utime undef, undef, $fh;	578
		579	sub fork_call(&@) {
		580	my ($cb, @args) = @_;
		581
		582	# we seemingly have to make a local copy of the whole thing,
		583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
		585
		586	my @res = Coro::Util::fork_eval {
		587	reset_signals;
		588	&$cb
		589	}, @args;
		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	=item $coin = coin_from_name $name
		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
402	}	648	};
		649	cf::cleanup "db_open(db): $@" if $@;
403		650
404	my $guard = cf::lock_acquire "write_runtime";	651	$db
		652	}
405		653
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	654	our $DB;
407	or return;
408		655
409	my $value = $cf::RUNTIME + 90 + 10;	656	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	657	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	658	$DB ||= db_table "db";
		659	};
		660	}
412		661
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	662	sub db_get($$) {
414	and return;	663	my $key = "$_[0]/$_[1]";
415		664
416	# always fsync - this file is important	665	cf::sync_job {
417	aio_fsync $fh	666	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		667
420	# touch it again to show we are up-to-date	668	$! ? ()
421	utime undef, undef, $fh;	669	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
432	}	746	}
433		747
434	=item cf::datalog type => key => value, ...	748	=item cf::datalog type => key => value, ...
435		749
436	Log a datalog packet of the given type with the given key-value pairs.	750	Log a datalog packet of the given type with the given key-value pairs.
…		…
448		762
449	#############################################################################	763	#############################################################################
450		764
451	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
452		766
453	Many objects in crossfire are so-called attachable objects. That means you can	767	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")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
456		770
457	In the following description, CLASS can be any of C<global>, C<object>	771	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	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	773	Deliantra).
460		774
461	=over 4	775	=over 4
462		776
463	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
464		778
…		…
508	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
509		823
510	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
512		826
513	Some classes such as crossfire maps and objects can specify attachments	827	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.	828	that are attached at load/instantiate time, thus the need for a name.
515		829
516	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
517		831
518	=over 4	832	=over 4
…		…
666	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
667	}	981	}
668		982
669	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
670	} else {	984	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	986	}
673		987
674	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
675	}	989	}
676		990
…		…
716	";	1030	";
717	die if $@;	1031	die if $@;
718	}	1032	}
719		1033
720	our $override;	1034	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1036
723	sub override {	1037	sub override {
724	$override = 1;	1038	$override = 1;
725	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
726	}	1040	}
727		1041
728	sub do_invoke {	1042	sub do_invoke {
729	my $event = shift;	1043	my $event = shift;
730	my $callbacks = shift;	1044	my $callbacks = shift;
731		1045
732	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
733		1047
734	local $override;	1048	local $override;
735		1049
736	for (@$callbacks) {	1050	for (@$callbacks) {
737	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
746	}	1060	}
747		1061
748	0	1062	0
749	}	1063	}
750		1064
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1066
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1068
755	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
756		1070
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	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	1072	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1074
761	=back	1075	=back
762		1076
763	=cut	1077	=cut
764		1078
765	#############################################################################	1079	#############################################################################
766	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
767		1123
768	sub reattach {	1124	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1126	my ($obj) = @_;
771		1127
		1128	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1130
774	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
775		1132
776	@$registry = ();	1133	@$registry = ();
777		1134
…		…
792	cf::attachable->attach (	1149	cf::attachable->attach (
793	prio => -1000000,	1150	prio => -1000000,
794	on_instantiate => sub {	1151	on_instantiate => sub {
795	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
796		1153
797	$data = from_json $data;	1154	$data = decode_json $data;
798		1155
799	for (@$data) {	1156	for (@$data) {
800	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
801		1158
802	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1175	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
820		1177
821	sync_job {	1178	sync_job {
822	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
825		1183
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	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;
		1189	aio_fsync $fh;
		1190	}
830	close $fh;	1191	aio_close $fh;
831		1192
832	if (@$objs) {	1193	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1198	if ($cf::USE_FSYNC) {
		1199	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;
		1200	aio_fsync $fh;
		1201	}
838	close $fh;	1202	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
840	}	1204	}
841	} else {	1205	} else {
842	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
843	}	1207	}
844		1208
845	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1213	} else {
847	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
848	}	1215	}
849	} else {	1216	} else {
850	aio_unlink $filename;	1217	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
852	}	1219	}
853	}	1220	};
854	}	1221	}
855		1222
856	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
858		1225
…		…
870	or return;	1237	or return;
871		1238
872	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
874	or return;	1241	or return;
		1242
875	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
876	}	1245	}
877		1246
		1247	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
880	return ($data, $av);	1251	($data, $av)
881	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
882		1259
883	#############################################################################	1260	#############################################################################
884	# command handling &c	1261	# command handling &c
885		1262
886	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1277	}
901		1278
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1280
904	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
905		1286
906	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
907	called.	1288	called.
908		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
909	=cut	1301	=cut
910		1302
911	sub register_extcmd {	1303	sub register_extcmd {
912	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
913		1305
914	$EXTCMD{$name} = $cb;	1306	$EXTCMD{$name} = $cb;
915	}	1307	}
916		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
		1316
917	cf::player->attach (	1317	cf::player->attach (
918	on_command => sub {	1318	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
920		1320
921	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
922	or return;	1322	or return;
923		1323
…		…
928	cf::override;	1328	cf::override;
929	},	1329	},
930	on_extcmd => sub {	1330	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
932		1332
933	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1334
935	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
941	} else {	1350	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1352	}
944		1353
945	cf::override;	1354	cf::override;
946	},	1355	},
947	);	1356	);
948		1357
		1358	# "readahead" all extensions
949	sub load_extension {	1359	sub cache_extensions {
950	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
951		1361
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1364	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	}	1365	}
977	die $@;
978	}	1366	};
979		1367
980	push @EXTS, $pkg;	1368	$grp
981	}	1369	}
982		1370
983	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
984	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1376	next unless -r $path;
986	eval {	1377
987	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
988	1	1438	}
989	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
990	}	1449	};
991	}	1450	}
992		1451
993	#############################################################################	1452	#############################################################################
994		1453
		1454	=back
		1455
995	=head2 CORE EXTENSIONS	1456	=head2 CORE EXTENSIONS
996		1457
997	Functions and methods that extend core crossfire objects.	1458	Functions and methods that extend core deliantra objects.
998		1459
999	=cut	1460	=cut
1000		1461
1001	package cf::player;	1462	package cf::player;
1002		1463
1003	use Coro::AIO;	1464	use Coro::AIO;
1004		1465
1005	=head3 cf::player	1466	=head3 cf::player
1006		1467
1007	=over 4	1468	=over 4
		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
1008		1483
1009	=item cf::player::find $login	1484	=item cf::player::find $login
1010		1485
1011	Returns the given player object, loading it if necessary (might block).	1486	Returns the given player object, loading it if necessary (might block).
1012		1487
…		…
1031		1506
1032	sub exists($) {	1507	sub exists($) {
1033	my ($login) = @_;	1508	my ($login) = @_;
1034		1509
1035	$cf::PLAYER{$login}	1510	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1511	or !aio_stat path $login
1037	}	1512	}
1038		1513
1039	sub find($) {	1514	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1515	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1516	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1526	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1527
1053	my $pl = load_pl path $login	1528	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1536	$cf::PLAYER{$login} = $pl
1056	}	1537	}
1057	}	1538	}
1058	}	1539	}
		1540
		1541	cf::player->attach (
		1542	on_load => sub {
		1543	my ($pl, $path) = @_;
		1544
		1545	# restore slots saved in save, below
		1546	my $slots = delete $pl->{_slots};
		1547
		1548	$pl->ob->current_weapon ($slots->[0]);
		1549	$pl->combat_ob ($slots->[1]);
		1550	$pl->ranged_ob ($slots->[2]);
		1551	},
		1552	);
1059		1553
1060	sub save($) {	1554	sub save($) {
1061	my ($pl) = @_;	1555	my ($pl) = @_;
1062		1556
1063	return if $pl->{deny_save};	1557	return if $pl->{deny_save};
…		…
1068	return if $pl->{deny_save};	1562	return if $pl->{deny_save};
1069		1563
1070	aio_mkdir playerdir $pl, 0770;	1564	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1565	$pl->{last_save} = $cf::RUNTIME;
1072		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
1073	$pl->save_pl ($path);	1572	$pl->save_pl ($path);
1074	Coro::cede;	1573	cf::cede_to_tick;
1075	}	1574	}
1076		1575
1077	sub new($) {	1576	sub new($) {
1078	my ($login) = @_;	1577	my ($login) = @_;
1079		1578
…		…
1085	$cf::PLAYER{$login} = $self;	1584	$cf::PLAYER{$login} = $self;
1086		1585
1087	$self	1586	$self
1088	}	1587	}
1089		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
1090	=item $pl->quit_character	1599	=item $pl->quit_character
1091		1600
1092	Nukes the player without looking back. If logged in, the connection will	1601	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1602	be destroyed. May block for a long time.
1094		1603
…		…
1098	my ($pl) = @_;	1607	my ($pl) = @_;
1099		1608
1100	my $name = $pl->ob->name;	1609	my $name = $pl->ob->name;
1101		1610
1102	$pl->{deny_save} = 1;	1611	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1613
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1106	$pl->deactivate;	1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1108	$pl->ns->destroy if $pl->ns;	1619	$pl->ns->destroy if $pl->ns;
1109		1620
1110	my $path = playerdir $pl;	1621	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1622	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1147	or return [];	1658	or return [];
1148		1659
1149	my @logins;	1660	my @logins;
1150		1661
1151	for my $login (@$dirs) {	1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1669	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
1155		1672
1156	utf8::decode $login;	1673	utf8::decode $login;
1157	push @logins, $login;	1674	push @logins, $login;
1158	}	1675	}
1159		1676
…		…
1186	}	1703	}
1187		1704
1188	\@paths	1705	\@paths
1189	}	1706	}
1190		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
1191	=item $player->ext_reply ($msgid, %msg)	1712	=item $player->ext_reply ($msgid, @msg)
1192		1713
1193	Sends an ext reply to the player.	1714	Sends an ext reply to the player.
1194		1715
1195	=cut	1716	=cut
1196		1717
1197	sub ext_reply($$%) {	1718	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1719	my ($self, $id, @msg) = @_;
1199		1720
1200	$msg{msgid} = $id;	1721	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1722	}
1204		1723
1205	=item $player->ext_event ($type, %msg)	1724	=item $player->ext_msg ($type, @msg)
1206		1725
1207	Sends an ext event to the client.	1726	Sends an ext event to the client.
1208		1727
1209	=cut	1728	=cut
1210		1729
1211	sub ext_event($$%) {	1730	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1731	my ($self, $type, @msg) = @_;
1213		1732
1214	$self->ns->ext_event ($type, %msg);	1733	$self->ns->ext_msg ($type, @msg);
1215	}	1734	}
1216		1735
1217	=head3 cf::region	1736	=head3 cf::region
1218		1737
1219	=over 4	1738	=over 4
…		…
1222		1741
1223	package cf::region;	1742	package cf::region;
1224		1743
1225	=item cf::region::find_by_path $path	1744	=item cf::region::find_by_path $path
1226		1745
1227	Tries to decuce the probable region for a map knowing only its path.	1746	Tries to decuce the likely region for a map knowing only its path.
1228		1747
1229	=cut	1748	=cut
1230		1749
1231	sub find_by_path($) {	1750	sub find_by_path($) {
1232	my ($path) = @_;	1751	my ($path) = @_;
1233		1752
1234	my ($match, $specificity);	1753	my ($match, $specificity);
1235		1754
1236	for my $region (list) {	1755	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1756	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1757	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1758	if $region->specificity > $specificity;
1240	}	1759	}
1241	}	1760	}
1242		1761
…		…
1263	our $MAX_RESET = 3600;	1782	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1783	our $DEFAULT_RESET = 3000;
1265		1784
1266	sub generate_random_map {	1785	sub generate_random_map {
1267	my ($self, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1789
1268	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1791	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1273	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1274	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1306	my ($self, $merge) = @_;	1828	my ($self, $merge) = @_;
1307		1829
1308	# we have to keep some variables in memory intact	1830	# we have to keep some variables in memory intact
1309	local $self->{path};	1831	local $self->{path};
1310	local $self->{load_path};	1832	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1833
1314	$self->SUPER::thawer_merge ($merge);	1834	$self->SUPER::thawer_merge ($merge);
1315	}	1835	}
1316		1836
1317	sub normalise {	1837	sub normalise {
…		…
1364	$self->init; # pass $1 etc.	1884	$self->init; # pass $1 etc.
1365	return $self;	1885	return $self;
1366	}	1886	}
1367	}	1887	}
1368		1888
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
1370	()	1890	()
1371	}	1891	}
1372		1892
1373	sub init {	1893	sub init {
1374	my ($self) = @_;	1894	my ($self) = @_;
…		…
1396		1916
1397	# the temporary/swap location	1917	# the temporary/swap location
1398	sub save_path {	1918	sub save_path {
1399	my ($self) = @_;	1919	my ($self) = @_;
1400		1920
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1922	"$TMPDIR/$path.map"
1403	}	1923	}
1404		1924
1405	# the unique path, undef == no special unique path	1925	# the unique path, undef == no special unique path
1406	sub uniq_path {	1926	sub uniq_path {
1407	my ($self) = @_;	1927	my ($self) = @_;
1408		1928
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	1930	"$UNIQUEDIR/$path"
1411	}	1931	}
1412		1932
1413	# and all this just because we cannot iterate over	1933	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	1934	my ($self) = @_;
1417		1935
1418	$_->change_map_light ($change)	1936	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	1937
		1938	$self->do_decay_objects;
1420	}	1939	}
1421		1940
1422	sub unlink_save {	1941	sub unlink_save {
1423	my ($self) = @_;	1942	my ($self) = @_;
1424		1943
…		…
1429		1948
1430	sub load_header_from($) {	1949	sub load_header_from($) {
1431	my ($self, $path) = @_;	1950	my ($self, $path) = @_;
1432		1951
1433	utf8::encode $path;	1952	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	1954	or return;
		1955
		1956	$self->_load_header ($f)
		1957	or return;
		1958
		1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
1439		1961
1440	$self->{load_path} = $path;	1962	$self->{load_path} = $path;
1441		1963
1442	1	1964	1
1443	}	1965	}
…		…
1482	$self->load_header_orig	2004	$self->load_header_orig
1483	or return;	2005	or return;
1484	$self->prepare_orig;	2006	$self->prepare_orig;
1485	}	2007	}
1486		2008
		2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
		2011
1487	$self->default_region (cf::region::find_by_path $self->{path})	2012	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	2013	unless $self->default_region;
1489		2014
1490	1	2015	1
1491	}	2016	}
…		…
1494	sub find {	2019	sub find {
1495	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1496		2021
1497	$path = normalise $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1498		2023
		2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1500		2026
1501	$cf::MAP{$path} || do {	2027	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	2028	my $map = new_from_path cf::map $path
1504	or return;	2029	or return;
1505		2030
1506	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1507		2032
1508	$map->load_header	2033	$map->load_header
1509	or return;	2034	or return;
1510		2035
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2037	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
1514	$map->reset;	2041	$map->reset;
1515	undef $guard;
1516	return find $path;	2042	return find $path;
1517	}	2043	}
1518		2044
1519	$cf::MAP{$path} = $map	2045	$cf::MAP{$path} = $map
1520	}	2046	}
1521	}	2047	}
1522		2048
1523	sub pre_load { }	2049	sub pre_load { }
1524	sub post_load { }	2050	#sub post_load { } # XS
1525		2051
1526	sub load {	2052	sub load {
1527	my ($self) = @_;	2053	my ($self) = @_;
1528		2054
1529	local $self->{deny_reset} = 1; # loading can take a long time	2055	local $self->{deny_reset} = 1; # loading can take a long time
1530		2056
1531	my $path = $self->{path};	2057	my $path = $self->{path};
1532		2058
1533	{	2059	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2060	my $guard = cf::lock_acquire "map_data:$path";
1535		2061
		2062	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2064
1538	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1539		2066
1540	$self->alloc;	2067	$self->alloc;
1541		2068
1542	$self->pre_load;	2069	$self->pre_load;
1543	Coro::cede;	2070	cf::cede_to_tick;
1544		2071
		2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2074	$self->_load_objects ($f)
1546	or return;	2075	or return;
1547		2076
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1549	if delete $self->{load_original};	2078	if delete $self->{load_original};
1550		2079
1551	if (my $uniq = $self->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2081	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2084	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1556	}	2088	}
1557	}	2089	}
1558		2090
1559	Coro::cede;	2091	$f->resolve_delayed_derefs;
		2092
		2093	cf::cede_to_tick;
1560	# now do the right thing for maps	2094	# now do the right thing for maps
1561	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2097	unless $self->difficulty;
1564	Coro::cede;	2098	cf::cede_to_tick;
1565		2099
1566	unless ($self->{deny_activate}) {	2100	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2101	$self->decay_objects;
1568	$self->fix_auto_apply;	2102	$self->fix_auto_apply;
1569	$self->update_buttons;	2103	$self->update_buttons;
1570	Coro::cede;	2104	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2105	$self->activate;
1574	}	2106	}
1575		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2111	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2112	}
1578		2113
1579	$self->post_load;	2114	$self->post_load;
1580	}	2115	}
1581		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
1582	sub customise_for {	2120	sub customise_for {
1583	my ($self, $ob) = @_;	2121	my ($self, $ob) = @_;
1584		2122
1585	return find "~" . $ob->name . "/" . $self->{path}	2123	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2124	if $self->per_player;
1587		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
1588	$self	2129	$self
1589	}	2130	}
1590		2131
1591	# find and load all maps in the 3x3 area around a map	2132	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2133	sub load_neighbours {
1593	my ($map) = @_;	2134	my ($map) = @_;
1594		2135
1595	my @diag; # diagonal neighbours	2136	my @neigh; # diagonal neighbours
1596		2137
1597	for (0 .. 3) {	2138	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2139	my $neigh = $map->tile_path ($_)
1599	or next;	2140	or next;
1600	$neigh = find $neigh, $map	2141	$neigh = find $neigh, $map
1601	or next;	2142	or next;
1602	$neigh->load;	2143	$neigh->load;
1603		2144
		2145	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2148	}
1607		2149
1608	for (@diag) {	2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2152	my $neigh = find $path, $origin
1610	or next;	2153	or next;
1611	$neigh->load;	2154	$neigh->load;
1612	}	2155	}
1613	}	2156	}
1614		2157
…		…
1619	}	2162	}
1620		2163
1621	sub do_load_sync {	2164	sub do_load_sync {
1622	my ($map) = @_;	2165	my ($map) = @_;
1623		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
1624	cf::sync_job { $map->load };	2170	cf::sync_job { $map->load };
1625	}	2171	}
1626		2172
1627	our %MAP_PREFETCH;	2173	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2174	our $MAP_PREFETCHER = undef;
1629		2175
1630	sub find_async {	2176	sub find_async {
1631	my ($path, $origin) = @_;	2177	my ($path, $origin, $load) = @_;
1632		2178
1633	$path = normalise $path, $origin && $origin->{path};	2179	$path = normalise $path, $origin && $origin->{path};
1634		2180
1635	if (my $map = $cf::MAP{$path}) {	2181	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2183	}
1638		2184
1639	undef $MAP_PREFETCH{$path};	2185	$MAP_PREFETCH{$path} |= $load;
		2186
1640	$MAP_PREFETCHER ||= cf::async {	2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
1641	while (%MAP_PREFETCH) {	2190	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2191	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2192	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2193	$map->load if $v;
		2194	}
1646		2195
1647	delete $MAP_PREFETCH{$path};	2196	delete $MAP_PREFETCH{$k};
1648	}	2197	}
1649	}	2198	}
1650	undef $MAP_PREFETCHER;	2199	undef $MAP_PREFETCHER;
1651	};	2200	};
1652	$MAP_PREFETCHER->prio (6);	2201	$MAP_PREFETCHER->prio (6);
…		…
1655	}	2204	}
1656		2205
1657	sub save {	2206	sub save {
1658	my ($self) = @_;	2207	my ($self) = @_;
1659		2208
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;	2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
1661		2210
1662	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1663		2212
1664	return unless $self->dirty;	2213	return unless $self->dirty;
1665		2214
…		…
1671	return if $self->{deny_save};	2220	return if $self->{deny_save};
1672		2221
1673	local $self->{last_access} = $self->last_access;#d#	2222	local $self->{last_access} = $self->last_access;#d#
1674		2223
1675	cf::async {	2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2226	$_->contr->save for $self->players;
1677	};	2227	};
		2228
		2229	cf::get_slot 0.02;
1678		2230
1679	if ($uniq) {	2231	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2234	} else {
…		…
1688	my ($self) = @_;	2240	my ($self) = @_;
1689		2241
1690	# save first because save cedes	2242	# save first because save cedes
1691	$self->save;	2243	$self->save;
1692		2244
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2246
1695	return if $self->players;	2247	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1697	return if $self->{deny_save};	2249	return if $self->{deny_save};
1698		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1699	$self->clear;	2255	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2256	}
1702		2257
1703	sub reset_at {	2258	sub reset_at {
1704	my ($self) = @_;	2259	my ($self) = @_;
1705		2260
1706	# TODO: safety, remove and allow resettable per-player maps	2261	# 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};	2262	return 1e99 if $self->{deny_reset};
1709		2263
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2266
…		…
1723	my ($self) = @_;	2277	my ($self) = @_;
1724		2278
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2280
1727	return if $self->players;	2281	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2282
1730	warn "resetting map ", $self->path;#d#	2283	warn "resetting map ", $self->path, "\n";
1731		2284
1732	$self->in_memory (cf::MAP_SWAPPED);	2285	$self->in_memory (cf::MAP_SWAPPED);
1733		2286
1734	# need to save uniques path	2287	# need to save uniques path
1735	unless ($self->{deny_save}) {	2288	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2292	if $uniq;
1740	}	2293	}
1741		2294
1742	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1743		2296
		2297	$self->deactivate;
		2298	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2299	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2300
1748	$self->unlink_save;	2301	$self->unlink_save;
1749	$self->destroy;	2302	$self->destroy;
1750	}	2303	}
1751		2304
1752	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1753		2306
1754	sub nuke {	2307	sub nuke {
1755	my ($self) = @_;	2308	my ($self) = @_;
1756		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
1757	delete $cf::MAP{$self->path};	2313	delete $cf::MAP{$self->path};
1758		2314
1759	$self->unlink_save;	2315	$self->unlink_save;
1760		2316
1761	bless $self, "cf::map";	2317	bless $self, "cf::map";
1762	delete $self->{deny_reset};	2318	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2322
1767	$cf::MAP{$self->path} = $self;	2323	$cf::MAP{$self->path} = $self;
		2324	}
1768		2325
1769	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
		2327	}
		2328
		2329	=item $maps = cf::map::tmp_maps
		2330
		2331	Returns an arrayref with all map paths of currently instantiated and saved
		2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
		2337	[
		2338	map {
		2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item $maps = cf::map::random_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
		2351
		2352	=cut
		2353
		2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
1770	}	2363	}
1771		2364
1772	=item cf::map::unique_maps	2365	=item cf::map::unique_maps
1773		2366
1774	Returns an arrayref of paths of all shared maps that have	2367	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2368	instantiated unique items. May block.
1776		2369
1777	=cut	2370	=cut
1778		2371
1779	sub unique_maps() {	2372	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2373	[
1781	or return;	2374	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2375	utf8::decode $_;
1787	next if /\.pst$/;	2376	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2378	? ()
1790	push @paths, cf::map::normalise $_;	2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2381	]
1792
1793	\@paths
1794	}	2382	}
1795		2383
1796	package cf;	2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
		2405	s/\.map$// or next;
		2406	utf8::decode $_;
		2407	push @maps, "$dir/$_";
		2408	}
		2409
		2410	push @dirs, map "$dir/$_", @$dirs;
		2411	}
		2412
		2413	\@maps
		2414	}
1797		2415
1798	=back	2416	=back
1799		2417
1800	=head3 cf::object	2418	=head3 cf::object
1801		2419
…		…
1805		2423
1806	=over 4	2424	=over 4
1807		2425
1808	=item $ob->inv_recursive	2426	=item $ob->inv_recursive
1809		2427
1810	Returns the inventory of the object _and_ their inventories, recursively.	2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
1811		2430
1812	=cut	2431	=cut
1813		2432
1814	sub inv_recursive_;	2433	sub inv_recursive_;
1815	sub inv_recursive_ {	2434	sub inv_recursive_ {
…		…
1818		2437
1819	sub inv_recursive {	2438	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2439	inv_recursive_ inv $_[0]
1821	}	2440	}
1822		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
		2468	}
		2469
1823	package cf;	2470	package cf;
1824		2471
1825	=back	2472	=back
1826		2473
1827	=head3 cf::object::player	2474	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	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	2481	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1836		2483
1837	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
1838		2499
1839	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2501	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1844		2505
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2507
1847	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1849	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1852	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
1853	}	2533	}
1854		2534
1855	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1856		2536
1857	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1870		2550
1871	=item $player_object->enter_link	2551	=item $player_object->enter_link
1872		2552
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2553	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2554
1875	The player should be reasonably safe there for short amounts of time. You	2555	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.	2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
1877		2559
1878	Will never block.	2560	Will never block.
1879		2561
1880	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1881		2563
…		…
1904	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1905		2587
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2589
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1910		2592
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1912	}	2594	}
1913		2595
1914	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1916		2600
1917	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1918		2602
1919	unless ($map) {	2603	unless ($map) {
1920	# restore original map position	2604	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1933		2617
1934	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1937		2621
1938	$map->load;	2622	$map->load;
1939	$map->load_diag;	2623	$map->load_neighbours;
1940		2624
1941	return unless $self->contr->active;	2625	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2626
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2628	$self->enter_map ($map, $x, $y);
1946	}
1947		2629
1948	cf::player->attach (	2630	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2631	$self->activate_recursive;
1950	my ($pl) = @_;	2632	}
1951		2633
1952	# abort map switching before logout	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961		2635
1962	# try to abort aborted map switching on player login :)	2636	Moves the player to the given map-path and coordinates by first freezing
1963	# should happen only on crashes	2637	her, loading and preparing them map, calling the provided $check callback
1964	if ($pl->ob->{_link_pos}) {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1965	$pl->ob->enter_link;	2639	the new (success) or old (failed) map position. In either case, $done will
1966	(async {	2640	be called at the end of this process.
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		2641
1980	=item $player_object->goto ($path, $x, $y)	2642	Note that $check will be called with a potentially non-loaded map, so if
		2643	it needs a loaded map it has to call C<< ->load >>.
1981		2644
1982	=cut	2645	=cut
		2646
		2647	our $GOTOGEN;
1983		2648
1984	sub cf::object::player::goto {	2649	sub cf::object::player::goto {
1985	my ($self, $path, $x, $y) = @_;	2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1986		2654
1987	$self->enter_link;	2655	$self->enter_link;
1988		2656
1989	(async {	2657	(async {
		2658	$Coro::current->{desc} = "player::goto $path $x $y";
		2659
		2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
1990	my $map = eval {	2679	my $map = eval {
1991	my $map = cf::map::find $path;	2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
1992	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
		2684	$map = $check->($map) if $check && $map;
		2685	} else {
		2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
		2688
1993	$map	2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
1994	} or	2695	}
1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1996		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
1997	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1998	})->prio (1);	2703	})->prio (1);
1999	}	2704	}
2000		2705
2001	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
2002		2707
…		…
2022	}	2727	}
2023		2728
2024	sub prepare_random_map {	2729	sub prepare_random_map {
2025	my ($exit) = @_;	2730	my ($exit) = @_;
2026		2731
2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
2028
2029	# all this does is basically replace the /! path by	2732	# all this does is basically replace the /! path by
2030	# a new random map path (?random/...) with a seed	2733	# a new random map path (?random/...) with a seed
2031	# that depends on the exit object	2734	# that depends on the exit object
2032		2735
2033	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
…		…
2035	if ($exit->map) {	2738	if ($exit->map) {
2036	$rmp->{region} = $exit->region->name;	2739	$rmp->{region} = $exit->region->name;
2037	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
2038	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
2039	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
2040	}	2745	}
2041		2746
2042	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
2043		2748
2044	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2045	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
2046	my $meta = "$RANDOMDIR/$md5.meta";	2751	my $meta = "$RANDOMDIR/$md5.meta";
2047		2752
2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2049	aio_write $fh, 0, (length $data), $data, 0;	2754	aio_write $fh, 0, (length $data), $data, 0;
2050	undef $fh;	2755	undef $fh;
2051	aio_rename "$meta~", $meta;	2756	aio_rename "$meta~", $meta;
2052		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
2053	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
2054	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
2055	}	2764	}
2056	}	2765	}
2057		2766
2058	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
2059	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
2060		2769
2061	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
2062		2771
2063	if ($exit->slaying eq "/!") {
2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
2065	# the problem is that $exit might not survive long enough
2066	# so it needs to be done right now, right here
2067	cf::sync_job { prepare_random_map $exit };
2068	}
2069
2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2071	my $hp = $exit->stats->hp;
2072	my $sp = $exit->stats->sp;
2073
2074	$self->enter_link;	2772	$self->enter_link;
2075		2773
2076	(async {	2774	(async {
2077	$self->deactivate_recursive; # just to be sure	2775	$Coro::current->{desc} = "enter_exit";
		2776
2078	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
		2784	prepare_random_map $exit
		2785	if $exit->slaying eq "/!";
		2786	}
		2787
		2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
		2791
2079	$self->goto ($slaying, $hp, $sp);	2792	$self->goto ($map, $x, $y);
2080		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
2081	1;	2798	1
2082	}) {	2799	}) {
2083	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
2084	. "I'll try to bring you back to the map you were before. "	2801	. "I'll try to bring you back to the map you were before. "
2085	. "Please report this to the dungeon master!",	2802	. "Please report this to the dungeon master!",
2086	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
2087		2804
2088	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
…		…
2107		2824
2108	utf8::encode $text;	2825	utf8::encode $text;
2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2110	}	2827	}
2111		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
2112	=item $client->ext_event ($type, %msg)	3016	=item $client->ext_msg ($type, @msg)
2113		3017
2114	Sends an exti event to the client.	3018	Sends an ext event to the client.
2115		3019
2116	=cut	3020	=cut
2117		3021
2118	sub cf::client::ext_event($$%) {	3022	sub cf::client::ext_msg($$@) {
2119	my ($self, $type, %msg) = @_;	3023	my ($self, $type, @msg) = @_;
2120		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
2121	$msg{msgtype} = "event_$type";	3028	push @msg, msgtype => "event_$type";
2122	$self->send_packet ("ext " . cf::to_json \%msg);	3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
2123	}	3049	}
2124		3050
2125	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
2126		3052
2127	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3054	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2129	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2130		3056
2131	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
2132	reliable at some point in the future.	3058	become reliable at some point in the future.
2133		3059
2134	=cut	3060	=cut
2135		3061
2136	sub cf::client::query {	3062	sub cf::client::query {
2137	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
2145	utf8::encode $text;	3071	utf8::encode $text;
2146	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2147		3073
2148	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
2149	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
2150	}	3078	}
2151		3079
2152	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
2153	on_reply => sub {	3086	on_reply => sub {
2154	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
2155		3088
2156	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
2157	# get handled first	3090	# get handled first
…		…
2169	} else {	3102	} else {
2170	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2171	}	3104	}
2172	}	3105	}
2173	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
2174	);	3133	);
2175		3134
2176	=item $client->async (\&cb)	3135	=item $client->async (\&cb)
2177		3136
2178	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
…		…
2194		3153
2195	$coro	3154	$coro
2196	}	3155	}
2197		3156
2198	cf::client->attach (	3157	cf::client->attach (
2199	on_destroy => sub {	3158	on_client_destroy => sub {
2200	my ($ns) = @_;	3159	my ($ns) = @_;
2201		3160
2202	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2203	},	3162	},
2204	);	3163	);
…		…
2219	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
2220	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
2221		3180
2222	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
2223		3182
2224	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
2225		3188
2226	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
2227		3190
2228	=pod	3191	=pod
2229		3192
2230	The following functions and methods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
2231		3194
2232	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
2233	cf::object::player player	3200	cf::object::player
2234	cf::player peaceful	3201	player
2235	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
2236		3208
2237	=cut	3209	=cut
2238		3210
2239	for (	3211	for (
2240	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
2241	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
2242	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
2243	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
2244	) {	3218	) {
2245	no strict 'refs';	3219	no strict 'refs';
2246	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
2247	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2265		3239
2266	my $qcode = $code;	3240	my $qcode = $code;
2267	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2268	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
2269		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
2270	local $_;	3247	local $_;
2271	local @safe::cf::_safe_eval_args = values %vars;
2272		3248
2273	my $eval =	3249	my $eval =
2274	"do {\n"	3250	"do {\n"
2275	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2276	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
2277	. $code	3253	. $code
2278	. "\n}"	3254	. "\n}"
2279	;	3255	;
2280		3256
		3257	if ($CFG{safe_eval}) {
2281	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
2282	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2283	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
2284		3266
2285	if ($@) {	3267	if ($@) {
2286	warn "$@";	3268	warn "$@";
2287	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
2288	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2307	=cut	3289	=cut
2308		3290
2309	sub register_script_function {	3291	sub register_script_function {
2310	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
2311		3293
2312	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
2313	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
2314	}	3296	}
2315		3297
2316	=back	3298	=back
2317		3299
2318	=cut	3300	=cut
2319
2320	#############################################################################
2321
2322	=head2 EXTENSION DATABASE SUPPORT
2323
2324	Crossfire maintains a very simple database for extension use. It can
2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2326	convert to/from binary).
2327
2328	The parameter C<$family> should best start with the name of the extension
2329	using it, it should be unique.
2330
2331	=over 4
2332
2333	=item $value = cf::db_get $family => $key
2334
2335	Returns a single value from the database.
2336
2337	=item cf::db_put $family => $key => $value
2338
2339	Stores the given C<$value> in the family.
2340
2341	=cut
2342
2343	our $DB;
2344
2345	sub db_init {
2346	unless ($DB) {
2347	$DB = BDB::db_create $DB_ENV;
2348
2349	cf::sync_job {
2350	eval {
2351	$DB->set_flags (BDB::CHKSUM);
2352
2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2355	cf::cleanup "db_open(db): $!" if $!;
2356	};
2357	cf::cleanup "db_open(db): $@" if $@;
2358	};
2359	}
2360	}
2361
2362	sub db_get($$) {
2363	my $key = "$_[0]/$_[1]";
2364
2365	cf::sync_job {
2366	BDB::db_get $DB, undef, $key, my $data;
2367
2368	$! ? ()
2369	: $data
2370	}
2371	}
2372
2373	sub db_put($$$) {
2374	BDB::dbreq_pri 4;
2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2376	}
2377
2378	=item cf::cache $id => [$paths...], $processversion => $process
2379
2380	Generic caching function that returns the value of the resource $id,
2381	caching and regenerating as required.
2382
2383	This function can block.
2384
2385	=cut
2386
2387	sub cache {
2388	my ($id, $src, $processversion, $process) = @_;
2389
2390	my $meta =
2391	join "\x00",
2392	$processversion,
2393	map {
2394	aio_stat $_
2395	and Carp::croak "$_: $!";
2396
2397	($_, (stat _)[7,9])
2398	} @$src;
2399
2400	my $dbmeta = db_get cache => "$id/meta";
2401	if ($dbmeta ne $meta) {
2402	# changed, we may need to process
2403
2404	my @data;
2405	my $md5;
2406
2407	for (0 .. $#$src) {
2408	0 <= aio_load $src->[$_], $data[$_]
2409	or Carp::croak "$src->[$_]: $!";
2410	}
2411
2412	# if processing is expensive, check
2413	# checksum first
2414	if (1) {
2415	$md5 =
2416	join "\x00",
2417	$processversion,
2418	map {
2419	Coro::cede;
2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
2421	} 0.. $#$src;
2422
2423
2424	my $dbmd5 = db_get cache => "$id/md5";
2425	if ($dbmd5 eq $md5) {
2426	db_put cache => "$id/meta", $meta;
2427
2428	return db_get cache => "$id/data";
2429	}
2430	}
2431
2432	my $t1 = Time::HiRes::time;
2433	my $data = $process->(\@data);
2434	my $t2 = Time::HiRes::time;
2435
2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2437
2438	db_put cache => "$id/data", $data;
2439	db_put cache => "$id/md5" , $md5;
2440	db_put cache => "$id/meta", $meta;
2441
2442	return $data;
2443	}
2444
2445	db_get cache => "$id/data"
2446	}
2447
2448	=item fork_call { }, $args
2449
2450	Executes the given code block with the given arguments in a seperate
2451	process, returning the results. Everything must be serialisable with
2452	Coro::Storable. May, of course, block. Note that the executed sub may
2453	never block itself or use any form of Event handling.
2454
2455	=cut
2456
2457	sub fork_call(&@) {
2458	my ($cb, @args) = @_;
2459
2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2461	# or die "socketpair: $!";
2462	pipe my $fh1, my $fh2
2463	or die "pipe: $!";
2464
2465	if (my $pid = fork) {
2466	close $fh2;
2467
2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2469	$res = Coro::Storable::thaw $res;
2470
2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2472
2473	die $$res unless "ARRAY" eq ref $res;
2474
2475	return wantarray ? @$res : $res->[-1];
2476	} else {
2477	reset_signals;
2478	local $SIG{__WARN__};
2479	local $SIG{__DIE__};
2480	eval {
2481	close $fh1;
2482
2483	my @res = eval { $cb->(@args) };
2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2485	};
2486
2487	warn $@ if $@;
2488	_exit 0;
2489	}
2490	}
2491
2492
2493		3301
2494	#############################################################################	3302	#############################################################################
2495	# the server's init and main functions	3303	# the server's init and main functions
2496		3304
2497	sub load_facedata($) {	3305	sub load_facedata($) {
2498	my ($path) = @_;	3306	my ($path) = @_;
		3307
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2499		3313
2500	warn "loading facedata from $path\n";	3314	warn "loading facedata from $path\n";
2501		3315
2502	my $facedata;	3316	my $facedata;
2503	0 < aio_load $path, $facedata	3317	0 < aio_load $path, $facedata
…		…
2506	$facedata = Coro::Storable::thaw $facedata;	3320	$facedata = Coro::Storable::thaw $facedata;
2507		3321
2508	$facedata->{version} == 2	3322	$facedata->{version} == 2
2509	or cf::cleanup "$path: version mismatch, cannot proceed.";	3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
2510		3324
		3325	# patch in the exptable
		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3327	$facedata->{resource}{"res/exp_table"} = {
		3328	type => FT_RSRC,
		3329	data => $exp_table,
		3330	hash => (Digest::MD5::md5 $exp_table),
		3331	};
		3332	cf::cede_to_tick;
		3333
2511	{	3334	{
2512	my $faces = $facedata->{faceinfo};	3335	my $faces = $facedata->{faceinfo};
2513		3336
2514	while (my ($face, $info) = each %$faces) {	3337	while (my ($face, $info) = each %$faces) {
2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3339
2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3340	cf::face::set_visibility $idx, $info->{visibility};
		3341	cf::face::set_magicmap $idx, $info->{magicmap};
2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2519	Coro::cede;	3344
		3345	cf::cede_to_tick;
2520	}	3346	}
2521		3347
2522	while (my ($face, $info) = each %$faces) {	3348	while (my ($face, $info) = each %$faces) {
2523	next unless $info->{smooth};	3349	next unless $info->{smooth};
		3350
2524	my $idx = cf::face::find $face	3351	my $idx = cf::face::find $face
2525	or next;	3352	or next;
		3353
2526	if (my $smooth = cf::face::find $info->{smooth}) {	3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2528	} else {	3357	} else {
2529	warn "smooth face '$info->{smooth}' not found for face '$face'";	3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
2530	}	3359	}
2531	Coro::cede;	3360
		3361	cf::cede_to_tick;
2532	}	3362	}
2533	}	3363	}
2534		3364
2535	{	3365	{
2536	my $anims = $facedata->{animinfo};	3366	my $anims = $facedata->{animinfo};
2537		3367
2538	while (my ($anim, $info) = each %$anims) {	3368	while (my ($anim, $info) = each %$anims) {
2539	cf::anim::set $anim, $info->{frames}, $info->{facings};	3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
2540	Coro::cede;	3370	cf::cede_to_tick;
2541	}	3371	}
2542		3372
2543	cf::anim::invalidate_all; # d'oh	3373	cf::anim::invalidate_all; # d'oh
2544	}	3374	}
2545		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
2546	1	3395	1
2547	}	3396	}
2548		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
2549	sub reload_regions {	3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
2550	load_resource_file "$MAPDIR/regions"	3441	load_resource_file "$MAPDIR/regions"
2551	or die "unable to load regions file\n";	3442	or die "unable to load regions file\n";
		3443
		3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
2552	}	3448	}
2553		3449
2554	sub reload_facedata {	3450	sub reload_facedata {
2555	load_facedata "$DATADIR/facedata"	3451	load_facedata "$DATADIR/facedata"
2556	or die "unable to load facedata\n";	3452	or die "unable to load facedata\n";
…		…
2567	}	3463	}
2568		3464
2569	sub reload_resources {	3465	sub reload_resources {
2570	warn "reloading resource files...\n";	3466	warn "reloading resource files...\n";
2571		3467
2572	reload_regions;
2573	reload_facedata;	3468	reload_facedata;
2574	reload_archetypes;	3469	reload_archetypes;
		3470	reload_regions;
2575	reload_treasures;	3471	reload_treasures;
2576		3472
2577	warn "finished reloading resource files\n";	3473	warn "finished reloading resource files\n";
2578	}	3474	}
2579		3475
2580	sub init {	3476	sub reload_config {
2581	reload_resources;	3477	warn "reloading config file...\n";
2582	}
2583		3478
2584	sub cfg_load {
2585	open my $fh, "<:utf8", "$CONFDIR/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
2586	or return;	3480	or return;
2587		3481
2588	local $/;	3482	local $/;
2589	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
2590		3484
2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2592		3486
2593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2599	and die "WARNING: m(un)lockall failed: $!\n";	3493	and die "WARNING: m(un)lockall failed: $!\n";
2600	};	3494	};
2601	warn $@ if $@;	3495	warn $@ if $@;
2602	}	3496	}
		3497
		3498	warn "finished reloading resource files\n";
		3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
2603	}	3527	}
2604		3528
2605	sub main {	3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
2606	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
2607	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2609	(async {	3547	(async {
2610	Event::one_event;	3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3549	EV::loop EV::LOOP_ONESHOT;
2611	})->prio (Coro::PRIO_MAX);	3550	})->prio (Coro::PRIO_MAX);
2612	};	3551	};
2613		3552
2614	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
		3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
2615	db_init;	3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
2616	load_extensions;	3571	load_extensions;
2617		3572
2618	$TICK_WATCHER->start;	3573	utime time, time, $RUNTIMEFILE;
2619	Event::loop;	3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
2620	}	3583	}
2621		3584
2622	#############################################################################	3585	#############################################################################
2623	# initialisation and cleanup	3586	# initialisation and cleanup
2624		3587
2625	# install some emergency cleanup handlers	3588	# install some emergency cleanup handlers
2626	BEGIN {	3589	BEGIN {
		3590	our %SIGWATCHER = ();
2627	for my $signal (qw(INT HUP TERM)) {	3591	for my $signal (qw(INT HUP TERM)) {
2628	Event->signal (	3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2629	reentrant => 0,
2630	data => WF_AUTOCANCEL,
2631	signal => $signal,
2632	prio => 0,
2633	cb => sub {
2634	cf::cleanup "SIG$signal";	3593	cf::cleanup "SIG$signal";
2635	},
2636	);	3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3609	or return;
		3610
		3611	my $value = $cf::RUNTIME + 90 + 10;
		3612	# 10 is the runtime save interval, for a monotonic clock
		3613	# 60 allows for the watchdog to kill the server.
		3614
		3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3616	and return;
		3617
		3618	# always fsync - this file is important
		3619	aio_fsync $fh
		3620	and return;
		3621
		3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
2637	}	3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
2638	}	3684	}
2639		3685
2640	sub emergency_save() {	3686	sub emergency_save() {
2641	my $freeze_guard = cf::freeze_mainloop;	3687	my $freeze_guard = cf::freeze_mainloop;
2642		3688
2643	warn "enter emergency perl save\n";	3689	warn "emergency_perl_save: enter\n";
2644		3690
2645	cf::sync_job {	3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
2646	# use a peculiar iteration method to avoid tripping on perl	3697	# use a peculiar iteration method to avoid tripping on perl
2647	# refcount bugs in for. also avoids problems with players	3698	# refcount bugs in for. also avoids problems with players
2648	# and maps saved/destroyed asynchronously.	3699	# and maps saved/destroyed asynchronously.
2649	warn "begin emergency player save\n";	3700	warn "emergency_perl_save: begin player save\n";
2650	for my $login (keys %cf::PLAYER) {	3701	for my $login (keys %cf::PLAYER) {
2651	my $pl = $cf::PLAYER{$login} or next;	3702	my $pl = $cf::PLAYER{$login} or next;
2652	$pl->valid or next;	3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2653	$pl->save;	3705	$pl->save;
2654	}	3706	}
2655	warn "end emergency player save\n";	3707	warn "emergency_perl_save: end player save\n";
2656		3708
2657	warn "begin emergency map save\n";	3709	warn "emergency_perl_save: begin map save\n";
2658	for my $path (keys %cf::MAP) {	3710	for my $path (keys %cf::MAP) {
2659	my $map = $cf::MAP{$path} or next;	3711	my $map = $cf::MAP{$path} or next;
2660	$map->valid or next;	3712	$map->valid or next;
2661	$map->save;	3713	$map->save;
2662	}	3714	}
2663	warn "end emergency map save\n";	3715	warn "emergency_perl_save: end map save\n";
2664		3716
2665	warn "begin emergency database checkpoint\n";	3717	warn "emergency_perl_save: begin database checkpoint\n";
2666	BDB::db_env_txn_checkpoint $DB_ENV;	3718	BDB::db_env_txn_checkpoint $DB_ENV;
2667	warn "end emergency database checkpoint\n";	3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
2668	};	3724	};
2669		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
2670	warn "leave emergency perl save\n";	3731	warn "emergency_perl_save: leave\n";
2671	}	3732	}
2672		3733
2673	sub post_cleanup {	3734	sub post_cleanup {
2674	my ($make_core) = @_;	3735	my ($make_core) = @_;
2675		3736
2676	warn Carp::longmess "post_cleanup backtrace"	3737	warn Carp::longmess "post_cleanup backtrace"
2677	if $make_core;	3738	if $make_core;
		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
2678	}	3768	}
2679		3769
2680	sub do_reload_perl() {	3770	sub do_reload_perl() {
2681	# can/must only be called in main	3771	# can/must only be called in main
2682	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2683	warn "can only reload from main coroutine";	3773	warn "can only reload from main coroutine";
2684	return;	3774	return;
2685	}	3775	}
2686		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2687	warn "reloading...";	3782	warn "reloading...";
2688		3783
2689	warn "entering sync_job";	3784	warn "entering sync_job";
2690		3785
2691	cf::sync_job {	3786	cf::sync_job {
2692	cf::write_runtime; # external watchdog should not bark	3787	cf::write_runtime_sync; # external watchdog should not bark
2693	cf::emergency_save;	3788	cf::emergency_save;
2694	cf::write_runtime; # external watchdog should not bark	3789	cf::write_runtime_sync; # external watchdog should not bark
2695		3790
2696	warn "syncing database to disk";	3791	warn "syncing database to disk";
2697	BDB::db_env_txn_checkpoint $DB_ENV;	3792	BDB::db_env_txn_checkpoint $DB_ENV;
2698		3793
2699	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
2700		3795
2701	warn "cancelling all WF_AUTOCANCEL watchers";
2702	for (Event::all_watchers) {
2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2704	}
2705
2706	warn "flushing outstanding aio requests";	3796	warn "flushing outstanding aio requests";
2707	for (;;) {
2708	BDB::flush;
2709	IO::AIO::flush;
2710	Coro::cede;
2711	last unless IO::AIO::nreqs || BDB::nreqs;	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2712	warn "iterate...";	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2713	}
2714
2715	++$RELOAD;
2716
2717	warn "cancelling all extension coros";
2718	$_->cancel for values %EXT_CORO;
2719	%EXT_CORO = ();
2720
2721	warn "removing commands";
2722	%COMMAND = ();
2723
2724	warn "removing ext commands";
2725	%EXTCMD = ();
2726
2727	warn "unloading/nuking all extensions";
2728	for my $pkg (@EXTS) {
2729	warn "... unloading $pkg";
2730
2731	if (my $cb = $pkg->can ("unload")) {
2732	eval {
2733	$cb->($pkg);
2734	1
2735	} or warn "$pkg unloaded, but with errors: $@";
2736	}	3799	}
2737		3800
2738	warn "... nuking $pkg";	3801	warn "cancelling all extension coros";
2739	Symbol::delete_package $pkg;	3802	$_->cancel for values %EXT_CORO;
2740	}	3803	%EXT_CORO = ();
2741		3804
2742	warn "unloading all perl modules loaded from $LIBDIR";	3805	warn "removing commands";
2743	while (my ($k, $v) = each %INC) {	3806	%COMMAND = ();
2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2745		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
2746	warn "... unloading $k";	3814	warn "... unloading $pkg";
2747	delete $INC{$k};
2748		3815
2749	$k =~ s/\.pm$//;
2750	$k =~ s/\//::/g;
2751
2752	if (my $cb = $k->can ("unload_module")) {	3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
2753	$cb->();	3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
2754	}	3825	}
2755		3826
2756	Symbol::delete_package $k;	3827	warn "unloading all perl modules loaded from $LIBDIR";
		3828	while (my ($k, $v) = each %INC) {
		3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
2757	}	3842	}
2758		3843
2759	warn "getting rid of safe::, as good as possible";	3844	warn "getting rid of safe::, as good as possible";
2760	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2762		3847
2763	warn "unloading cf.pm \"a bit\"";	3848	warn "unloading cf.pm \"a bit\"";
2764	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
2765	delete $INC{"cf/pod.pm"};	3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2766		3851
2767	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2768	# and global variables created in xs	3853	# and global variables created in xs
2769	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2770		3855
2771	warn "unload completed, starting to reload now";	3856	warn "unload completed, starting to reload now";
2772		3857
2773	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2774	require cf;	3859	require cf;
2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2776		3861
2777	warn "loading config and database again";	3862	warn "loading config and database again";
2778	cf::cfg_load;	3863	cf::reload_config;
2779		3864
2780	warn "loading extensions";	3865	warn "loading extensions";
2781	cf::load_extensions;	3866	cf::load_extensions;
2782		3867
		3868	if ($REATTACH_ON_RELOAD) {
2783	warn "reattaching attachments to objects/players";	3869	warn "reattaching attachments to objects/players";
2784	_global_reattach; # objects, sockets	3870	_global_reattach; # objects, sockets
2785	warn "reattaching attachments to maps";	3871	warn "reattaching attachments to maps";
2786	reattach $_ for values %MAP;	3872	reattach $_ for values %MAP;
2787	warn "reattaching attachments to players";	3873	warn "reattaching attachments to players";
2788	reattach $_ for values %PLAYER;	3874	reattach $_ for values %PLAYER;
		3875	}
2789		3876
		3877	warn "running post_init jobs";
		3878	(pop @POST_INIT)->(1) while @POST_INIT;
		3879
2790	warn "leaving sync_job";	3880	warn "leaving sync_job";
2791		3881
2792	1	3882	1
2793	} or do {	3883	} or do {
2794	warn $@;	3884	warn $@;
2795	warn "error while reloading, exiting.";	3885	cf::cleanup "error while reloading, exiting.";
2796	exit 1;
2797	};	3886	};
2798		3887
2799	warn "reloaded";	3888	warn "reloaded";
		3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
2800	};	3894	};
2801		3895
2802	our $RELOAD_WATCHER; # used only during reload	3896	our $RELOAD_WATCHER; # used only during reload
2803		3897
2804	sub reload_perl() {	3898	sub reload_perl() {
2805	# doing reload synchronously and two reloads happen back-to-back,	3899	# doing reload synchronously and two reloads happen back-to-back,
2806	# coro crashes during coro_state_free->destroy here.	3900	# coro crashes during coro_state_free->destroy here.
2807		3901
2808	$RELOAD_WATCHER ||= Event->timer (	3902	$RELOAD_WATCHER ||= cf::async {
2809	reentrant => 0,	3903	Coro::AIO::aio_wait cache_extensions;
2810	after => 0,	3904
2811	data => WF_AUTOCANCEL,	3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2812	cb => sub {
2813	do_reload_perl;	3906	do_reload_perl;
2814	undef $RELOAD_WATCHER;	3907	undef $RELOAD_WATCHER;
2815	},	3908	};
2816	);	3909	};
2817	}	3910	}
2818		3911
2819	register_command "reload" => sub {	3912	register_command "reload" => sub {
2820	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2821		3914
2822	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2823	$who->message ("reloading server.");	3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
2824	async { reload_perl };	3919	reload_perl;
		3920	};
2825	}	3921	}
2826	};	3922	};
2827		3923
2828	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2829		3925
…		…
2831		3927
2832	our @WAIT_FOR_TICK;	3928	our @WAIT_FOR_TICK;
2833	our @WAIT_FOR_TICK_BEGIN;	3929	our @WAIT_FOR_TICK_BEGIN;
2834		3930
2835	sub wait_for_tick {	3931	sub wait_for_tick {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		3933
2839	my $signal = new Coro::Signal;	3934	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK, $signal;	3935	push @WAIT_FOR_TICK, $signal;
2841	$signal->wait;	3936	$signal->wait;
2842	}	3937	}
2843		3938
2844	sub wait_for_tick_begin {	3939	sub wait_for_tick_begin {
2845	return unless $TICK_WATCHER->is_active;
2846	return if $Coro::current == $Coro::main;	3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2847		3941
2848	my $signal = new Coro::Signal;	3942	my $signal = new Coro::Signal;
2849	push @WAIT_FOR_TICK_BEGIN, $signal;	3943	push @WAIT_FOR_TICK_BEGIN, $signal;
2850	$signal->wait;	3944	$signal->wait;
2851	}	3945	}
2852		3946
2853	$TICK_WATCHER = Event->timer (	3947	sub tick {
2854	reentrant => 0,
2855	parked => 1,
2856	prio => 0,
2857	at => $NEXT_TICK || $TICK,
2858	data => WF_AUTOCANCEL,
2859	cb => sub {
2860	if ($Coro::current != $Coro::main) {	3948	if ($Coro::current != $Coro::main) {
2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2862	unless ++$bug_warning > 10;	3950	unless ++$bug_warning > 10;
2863	return;	3951	return;
2864	}	3952	}
2865		3953
2866	$NOW = $tick_start = Event::time;
2867
2868	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2869		3955
2870	$RUNTIME += $TICK;	3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2871	$NEXT_TICK += $TICK;
2872		3957
2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2874	$NEXT_RUNTIME_WRITE = $NOW + 10;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2875	Coro::async_pool {	3960	Coro::async_pool {
		3961	$Coro::current->{desc} = "runtime saver";
2876	write_runtime	3962	write_runtime_sync
2877	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2878	};
2879	}	3964	};
		3965	}
2880		3966
2881	# my $AFTER = Event::time;
2882	# warn $AFTER - $NOW;#d#
2883
2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2885	$sig->send;	3968	$sig->send;
2886	}	3969	}
2887	while (my $sig = shift @WAIT_FOR_TICK) {	3970	while (my $sig = shift @WAIT_FOR_TICK) {
2888	$sig->send;	3971	$sig->send;
2889	}	3972	}
2890		3973
2891	$NOW = Event::time;	3974	$LOAD = ($NOW - $TICK_START) / $TICK;
2892
2893	# if we are delayed by four ticks or more, skip them all
2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2895
2896	$TICK_WATCHER->at ($NEXT_TICK);
2897	$TICK_WATCHER->start;
2898
2899	$LOAD = ($NOW - $tick_start) / $TICK;
2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2901		3976
2902	_post_tick;	3977	if (0) {
2903		3978	if ($NEXT_TICK) {
2904		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
2905	},	3983	}
2906	);	3984	}
2907		3985
2908	{	3986	{
2909	BDB::max_poll_time $TICK * 0.1;	3987	# configure BDB
2910	$BDB_POLL_WATCHER = Event->io (	3988
2911	reentrant => 0,
2912	fd => BDB::poll_fileno,
2913	poll => 'r',
2914	prio => 0,
2915	data => WF_AUTOCANCEL,
2916	cb => \&BDB::poll_cb,
2917	);
2918	BDB::min_parallel 8;	3989	BDB::min_parallel 16;
2919		3990	BDB::max_poll_reqs $TICK * 0.1;
2920	BDB::set_sync_prepare {	3991	$AnyEvent::BDB::WATCHER->priority (1);
2921	my $status;
2922	my $current = $Coro::current;
2923	(
2924	sub {
2925	$status = $!;
2926	$current->ready; undef $current;
2927	},
2928	sub {
2929	Coro::schedule while defined $current;
2930	$! = $status;
2931	},
2932	)
2933	};
2934		3992
2935	unless ($DB_ENV) {	3993	unless ($DB_ENV) {
2936	$DB_ENV = BDB::db_env_create;	3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2937		4000
2938	cf::sync_job {	4001	cf::sync_job {
2939	eval {	4002	eval {
2940	BDB::db_env_open	4003	BDB::db_env_open
2941	$DB_ENV,	4004	$DB_ENV,
…		…
2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2945	0666;	4008	0666;
2946		4009
2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2948
2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2950	$DB_ENV->set_lk_detect;
2951	};	4011	};
2952		4012
2953	cf::cleanup "db_env_open(db): $@" if $@;	4013	cf::cleanup "db_env_open(db): $@" if $@;
2954	};	4014	};
2955	}	4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
2956	}	4026	}
2957		4027
2958	{	4028	{
		4029	# configure IO::AIO
		4030
2959	IO::AIO::min_parallel 8;	4031	IO::AIO::min_parallel 8;
2960
2961	undef $Coro::AIO::WATCHER;
2962	IO::AIO::max_poll_time $TICK * 0.1;	4032	IO::AIO::max_poll_time $TICK * 0.1;
2963	$AIO_POLL_WATCHER = Event->io (	4033	undef $AnyEvent::AIO::WATCHER;
2964	reentrant => 0,
2965	data => WF_AUTOCANCEL,
2966	fd => IO::AIO::poll_fileno,
2967	poll => 'r',
2968	prio => 6,
2969	cb => \&IO::AIO::poll_cb,
2970	);
2971	}	4034	}
2972		4035
2973	my $_log_backtrace;	4036	my $_log_backtrace;
2974		4037
2975	sub _log_backtrace {	4038	sub _log_backtrace {
…		…
2978	$msg =~ s/\n//;	4041	$msg =~ s/\n//;
2979		4042
2980	# limit the # of concurrent backtraces	4043	# limit the # of concurrent backtraces
2981	if ($_log_backtrace < 2) {	4044	if ($_log_backtrace < 2) {
2982	++$_log_backtrace;	4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
2983	async {	4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
2984	my @bt = fork_call {	4050	my @bt = fork_call {
2985	@addr = map { sprintf "%x", $_ } @addr;	4051	@addr = map { sprintf "%x", $_ } @addr;
2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2988	or die "addr2line: $!";	4054	or die "addr2line: $!";
…		…
2996	}	4062	}
2997		4063
2998	@funcs	4064	@funcs
2999	};	4065	};
3000		4066
3001	LOG llevInfo, "[ABT] $msg\n";	4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3002	LOG llevInfo, "[ABT] $_\n" for @bt;	4069	LOG llevInfo, "[ABT] $_\n" for @bt;
3003	--$_log_backtrace;	4070	--$_log_backtrace;
3004	};	4071	};
3005	} else {	4072	} else {
3006	LOG llevInfo, "[ABT] $msg\n";	4073	LOG llevInfo, "[ABT] $msg\n";
3007	LOG llevInfo, "[ABT] [suppressed]\n";	4074	LOG llevInfo, "[ABT] [suppressed]\n";
3008	}	4075	}
3009	}	4076	}
3010		4077
3011	# load additional modules	4078	# load additional modules
3012	use cf::pod;	4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
3013		4081
3014	END { cf::emergency_save }	4082	END { cf::emergency_save }
3015		4083
3016	1	4084	1
3017		4085

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