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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.504 by root, Sat Jan 30 23:50:16 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;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
95	binmode STDOUT;	148	binmode STDOUT;
96	binmode STDERR;	149	binmode STDERR;
97		150
98	# read virtual server time, if available	151	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
103	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
104		159
105	mkdir $_	160	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		162
108	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
109		164
110	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		177
112	#############################################################################	178	#############################################################################
113		179
114	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
115		181
…		…
139		205
140	=item $cf::TICK	206	=item $cf::TICK
141		207
142	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
143		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
144	=item %cf::CFG	220	=item %cf::CFG
145		221
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	223	from wherever your confdir points to.
148		224
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		226
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
155	=back	243	=back
156		244
157	=cut	245	=cut
158		246
159	BEGIN {	247	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	248	my $msg = join "", @_;
162		249
163	$msg .= "\n"	250	$msg .= "\n"
164	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
165		252
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		254
168	utf8::encode $msg;
169	LOG llevError, $msg;	255	LOG llevError, $msg;
170	};	256	};
171	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
172		271
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		279
180	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	281	# within the Safe compartment.
182	for my $pkg (qw(	282	for my $pkg (qw(
183	cf::global cf::attachable	283	cf::global cf::attachable
184	cf::object cf::object::player	284	cf::object cf::object::player
185	cf::client cf::player	285	cf::client cf::player
186	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
187	cf::map cf::party cf::region	288	cf::party cf::region
188	)) {	289	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	291	}
192		292
193	$Event::DIED = sub {	293	$EV::DIED = sub {
194	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
195	};	295	};
		296
		297	#############################################################################
196		298
197	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
198		300
199	=over 4	301	=over 4
200		302
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	322	$d
221	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
222	}	324	}
223		325
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
227		327
228	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
229		329
230	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
231		331
232	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
233		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
249		373
250	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
251		375
252	=cut	376	=cut
253		377
254	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
255		379
256	sub lock_wait($) {	380	sub lock_wait($) {
257	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	382	}
265		383
266	sub lock_acquire($) {	384	sub lock_acquire($) {
267	my ($key) = @_;	385	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	386	}
279		387
280	sub lock_active($) {	388	sub lock_active($) {
281	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	390	}
285		391
286	sub freeze_mainloop {	392	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
288		394
289	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
291	};	462	}
292	$TICK_WATCHER->stop;	463	};
293	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
294	}	478	}
295		479
296	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
297		481
298	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		487
304	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
305		489
306	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
307		491
308	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
311		496
312	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
315	fast or be very important.	500	fast or be very important.
…		…
318		503
319	sub sync_job(&) {	504	sub sync_job(&) {
320	my ($job) = @_;	505	my ($job) = @_;
321		506
322	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
323	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
325		512
326	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	514
328	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
329		516
330	my $busy = 1;	517	my $busy = 1;
331	my @res;	518	my @res;
332		519
333	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	522	@res = eval { $job->() };
335	warn $@ if $@;	523	warn $@ if $@;
336	undef $busy;	524	undef $busy;
337	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
338		526
339	while ($busy) {	527	while ($busy) {
340	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
341	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
342		538
343	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
344	} else {	540	} else {
345	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
346		542
…		…
366	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
367		563
368	$coro	564	$coro
369	}	565	}
370		566
371	sub write_runtime {	567	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		568
374	my $runtime = "$LOCALDIR/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
375		573
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
377	or return;
378		575
379	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		578
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
384	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
385		582
386	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	584	reset_signals;
388	and return;	585	&$cb
		586	}, @args;
389		587
390	close $fh	588	wantarray ? @res : $res[-1]
391	or return;	589	}
392		590
393	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
394	and return;
395		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
396	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
397	}	743	}
398		744
399	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
400		746
401	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		759
414	#############################################################################	760	#############################################################################
415		761
416	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
417		763
418	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
421		767
422	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	770	Deliantra).
425		771
426	=over 4	772	=over 4
427		773
428	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
429		775
…		…
473	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
474		820
475	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
477		823
478	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
480		826
481	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
482		828
483	=over 4	829	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
593		939
594	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		944
599	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	946	my $pkg = shift @arg;
601		947
602	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
632	}	978	}
633		979
634	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
635	} else {	981	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	983	}
638		984
639	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
640	}	986	}
641		987
…		…
643	if (ref $_[0]) {	989	if (ref $_[0]) {
644	_object_attach @_;	990	_object_attach @_;
645	} else {	991	} else {
646	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
647	}	993	}
		994	_recalc_want;
648	};	995	};
649		996
650	# all those should be optimised	997	# all those should be optimised
651	sub cf::attachable::detach {	998	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1003	reattach ($obj);
657	} else {	1004	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
659	}	1006	}
		1007	_recalc_want;
660	};	1008	};
661		1009
662	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
664		1012
…		…
679	";	1027	";
680	die if $@;	1028	die if $@;
681	}	1029	}
682		1030
683	our $override;	1031	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1033
686	sub override {	1034	sub override {
687	$override = 1;	1035	$override = 1;
688	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
689	}	1037	}
690		1038
691	sub do_invoke {	1039	sub do_invoke {
692	my $event = shift;	1040	my $event = shift;
693	my $callbacks = shift;	1041	my $callbacks = shift;
694		1042
695	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
696		1044
697	local $override;	1045	local $override;
698		1046
699	for (@$callbacks) {	1047	for (@$callbacks) {
700	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
709	}	1057	}
710		1058
711	0	1059	0
712	}	1060	}
713		1061
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1063
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1065
718	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
719		1067
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1071
724	=back	1072	=back
725		1073
726	=cut	1074	=cut
727		1075
728	#############################################################################	1076	#############################################################################
729	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
730		1120
731	sub reattach {	1121	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1123	my ($obj) = @_;
734		1124
		1125	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1127
737	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
738		1129
739	@$registry = ();	1130	@$registry = ();
740		1131
…		…
755	cf::attachable->attach (	1146	cf::attachable->attach (
756	prio => -1000000,	1147	prio => -1000000,
757	on_instantiate => sub {	1148	on_instantiate => sub {
758	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
759		1150
760	$data = from_json $data;	1151	$data = decode_json $data;
761		1152
762	for (@$data) {	1153	for (@$data) {
763	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
764		1155
765	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1172	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
783		1174
784	sync_job {	1175	sync_job {
785	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
788		1180
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
793	close $fh;	1188	aio_close $fh;
794		1189
795	if (@$objs) {	1190	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
801	close $fh;	1199	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
803	}	1201	}
804	} else {	1202	} else {
805	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
806	}	1204	}
807		1205
808	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1210	} else {
810	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
811	}	1212	}
812	} else {	1213	} else {
813	aio_unlink $filename;	1214	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
815	}	1216	}
816	}	1217	};
817	}	1218	}
818		1219
819	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
821		1222
…		…
833	or return;	1234	or return;
834		1235
835	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
837	or return;	1238	or return;
		1239
838	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
839	}	1242	}
840		1243
		1244	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
843	return ($data, $av);	1248	($data, $av)
844	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
845		1256
846	#############################################################################	1257	#############################################################################
847	# command handling &c	1258	# command handling &c
848		1259
849	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1274	}
864		1275
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1277
867	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
868		1283
869	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
870	called.	1285	called.
871		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
872	=cut	1298	=cut
873		1299
874	sub register_extcmd {	1300	sub register_extcmd {
875	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
876		1302
877	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
878	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
879		1313
880	cf::player->attach (	1314	cf::player->attach (
881	on_command => sub {	1315	on_command => sub {
882	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
883		1317
…		…
891	cf::override;	1325	cf::override;
892	},	1326	},
893	on_extcmd => sub {	1327	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
895		1329
896	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1331
898	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
904	} else {	1347	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1349	}
907		1350
908	cf::override;	1351	cf::override;
909	},	1352	},
910	);	1353	);
911		1354
		1355	# "readahead" all extensions
912	sub load_extension {	1356	sub cache_extensions {
913	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
914		1358
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1362	}
940	die $@;
941	}	1363	};
942		1364
943	push @EXTS, $pkg;	1365	$grp
944	}	1366	}
945		1367
946	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
947	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1373	next unless -r $path;
949	eval {	1374
950	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
951	1	1431	}
952	} or warn "$ext not loaded: $@";	1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
953	}	1437	};
954	}	1438	}
955		1439
956	#############################################################################	1440	#############################################################################
957		1441
		1442	=back
		1443
958	=head2 CORE EXTENSIONS	1444	=head2 CORE EXTENSIONS
959		1445
960	Functions and methods that extend core crossfire objects.	1446	Functions and methods that extend core deliantra objects.
961		1447
962	=cut	1448	=cut
963		1449
964	package cf::player;	1450	package cf::player;
965		1451
966	use Coro::AIO;	1452	use Coro::AIO;
967		1453
968	=head3 cf::player	1454	=head3 cf::player
969		1455
970	=over 4	1456	=over 4
		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
971		1471
972	=item cf::player::find $login	1472	=item cf::player::find $login
973		1473
974	Returns the given player object, loading it if necessary (might block).	1474	Returns the given player object, loading it if necessary (might block).
975		1475
…		…
994		1494
995	sub exists($) {	1495	sub exists($) {
996	my ($login) = @_;	1496	my ($login) = @_;
997		1497
998	$cf::PLAYER{$login}	1498	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1499	or !aio_stat path $login
1000	}	1500	}
1001		1501
1002	sub find($) {	1502	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1503	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1504	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1514	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1515
1016	my $pl = load_pl path $login	1516	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1524	$cf::PLAYER{$login} = $pl
1019	}	1525	}
1020	}	1526	}
1021	}	1527	}
1022		1528
…		…
1031	return if $pl->{deny_save};	1537	return if $pl->{deny_save};
1032		1538
1033	aio_mkdir playerdir $pl, 0770;	1539	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1540	$pl->{last_save} = $cf::RUNTIME;
1035		1541
		1542	cf::get_slot 0.01;
		1543
1036	$pl->save_pl ($path);	1544	$pl->save_pl ($path);
1037	Coro::cede;	1545	cf::cede_to_tick;
1038	}	1546	}
1039		1547
1040	sub new($) {	1548	sub new($) {
1041	my ($login) = @_;	1549	my ($login) = @_;
1042		1550
…		…
1048	$cf::PLAYER{$login} = $self;	1556	$cf::PLAYER{$login} = $self;
1049		1557
1050	$self	1558	$self
1051	}	1559	}
1052		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
1053	=item $pl->quit_character	1571	=item $pl->quit_character
1054		1572
1055	Nukes the player without looking back. If logged in, the connection will	1573	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1574	be destroyed. May block for a long time.
1057		1575
…		…
1061	my ($pl) = @_;	1579	my ($pl) = @_;
1062		1580
1063	my $name = $pl->ob->name;	1581	my $name = $pl->ob->name;
1064		1582
1065	$pl->{deny_save} = 1;	1583	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1585
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1591	$pl->ns->destroy if $pl->ns;
1072		1592
1073	my $path = playerdir $pl;	1593	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1594	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1630	or return [];
1111		1631
1112	my @logins;	1632	my @logins;
1113		1633
1114	for my $login (@$dirs) {	1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1641	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
1118		1644
1119	utf8::decode $login;	1645	utf8::decode $login;
1120	push @logins, $login;	1646	push @logins, $login;
1121	}	1647	}
1122		1648
…		…
1149	}	1675	}
1150		1676
1151	\@paths	1677	\@paths
1152	}	1678	}
1153		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
1154	=item $player->ext_reply ($msgid, %msg)	1684	=item $player->ext_reply ($msgid, @msg)
1155		1685
1156	Sends an ext reply to the player.	1686	Sends an ext reply to the player.
1157		1687
1158	=cut	1688	=cut
1159		1689
1160	sub ext_reply($$%) {	1690	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1691	my ($self, $id, @msg) = @_;
1162		1692
1163	$msg{msgid} = $id;	1693	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1694	}
1167		1695
1168	=item $player->ext_event ($type, %msg)	1696	=item $player->ext_msg ($type, @msg)
1169		1697
1170	Sends an ext event to the client.	1698	Sends an ext event to the client.
1171		1699
1172	=cut	1700	=cut
1173		1701
1174	sub ext_event($$%) {	1702	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1703	my ($self, $type, @msg) = @_;
1176		1704
1177	$self->ns->ext_event ($type, %msg);	1705	$self->ns->ext_msg ($type, @msg);
1178	}	1706	}
1179		1707
1180	=head3 cf::region	1708	=head3 cf::region
1181		1709
1182	=over 4	1710	=over 4
…		…
1185		1713
1186	package cf::region;	1714	package cf::region;
1187		1715
1188	=item cf::region::find_by_path $path	1716	=item cf::region::find_by_path $path
1189		1717
1190	Tries to decuce the probable region for a map knowing only its path.	1718	Tries to decuce the likely region for a map knowing only its path.
1191		1719
1192	=cut	1720	=cut
1193		1721
1194	sub find_by_path($) {	1722	sub find_by_path($) {
1195	my ($path) = @_;	1723	my ($path) = @_;
1196		1724
1197	my ($match, $specificity);	1725	my ($match, $specificity);
1198		1726
1199	for my $region (list) {	1727	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1728	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1729	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1730	if $region->specificity > $specificity;
1203	}	1731	}
1204	}	1732	}
1205		1733
…		…
1226	our $MAX_RESET = 3600;	1754	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1755	our $DEFAULT_RESET = 3000;
1228		1756
1229	sub generate_random_map {	1757	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
1231	# mit "rum" bekleckern, nicht	1762	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1763	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1800	my ($self, $merge) = @_;
1270		1801
1271	# we have to keep some variables in memory intact	1802	# we have to keep some variables in memory intact
1272	local $self->{path};	1803	local $self->{path};
1273	local $self->{load_path};	1804	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1805
1277	$self->SUPER::thawer_merge ($merge);	1806	$self->SUPER::thawer_merge ($merge);
1278	}	1807	}
1279		1808
1280	sub normalise {	1809	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1856	$self->init; # pass $1 etc.
1328	return $self;	1857	return $self;
1329	}	1858	}
1330	}	1859	}
1331		1860
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1862	()
1334	}	1863	}
1335		1864
1336	sub init {	1865	sub init {
1337	my ($self) = @_;	1866	my ($self) = @_;
…		…
1359		1888
1360	# the temporary/swap location	1889	# the temporary/swap location
1361	sub save_path {	1890	sub save_path {
1362	my ($self) = @_;	1891	my ($self) = @_;
1363		1892
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1894	"$TMPDIR/$path.map"
1366	}	1895	}
1367		1896
1368	# the unique path, undef == no special unique path	1897	# the unique path, undef == no special unique path
1369	sub uniq_path {	1898	sub uniq_path {
1370	my ($self) = @_;	1899	my ($self) = @_;
1371		1900
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1902	"$UNIQUEDIR/$path"
1374	}	1903	}
1375		1904
1376	# and all this just because we cannot iterate over	1905	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1906	my ($self) = @_;
1380		1907
1381	$_->change_map_light ($change)	1908	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1909
		1910	$self->do_decay_objects;
1383	}	1911	}
1384		1912
1385	sub unlink_save {	1913	sub unlink_save {
1386	my ($self) = @_;	1914	my ($self) = @_;
1387		1915
…		…
1392		1920
1393	sub load_header_from($) {	1921	sub load_header_from($) {
1394	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1395		1923
1396	utf8::encode $path;	1924	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1402		1933
1403	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1404		1935
1405	1	1936	1
1406	}	1937	}
…		…
1445	$self->load_header_orig	1976	$self->load_header_orig
1446	or return;	1977	or return;
1447	$self->prepare_orig;	1978	$self->prepare_orig;
1448	}	1979	}
1449		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
1450	$self->default_region (cf::region::find_by_path $self->{path})	1984	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1985	unless $self->default_region;
1452		1986
1453	1	1987	1
1454	}	1988	}
…		…
1457	sub find {	1991	sub find {
1458	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1459		1993
1460	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1461		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1998
1464	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1467	or return;	2001	or return;
1468		2002
1469	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1470		2004
1471	$map->load_header	2005	$map->load_header
1472	or return;	2006	or return;
1473		2007
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1477	$map->reset;	2013	$map->reset;
1478	undef $guard;
1479	return find $path;	2014	return find $path;
1480	}	2015	}
1481		2016
1482	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1483	}	2018	}
1484	}	2019	}
1485		2020
1486	sub pre_load { }	2021	sub pre_load { }
1487	sub post_load { }	2022	#sub post_load { } # XS
1488		2023
1489	sub load {	2024	sub load {
1490	my ($self) = @_;	2025	my ($self) = @_;
1491		2026
1492	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1493		2028
1494	my $path = $self->{path};	2029	my $path = $self->{path};
1495		2030
1496	{	2031	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1498		2033
		2034	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2036
1501	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1502		2038
1503	$self->alloc;	2039	$self->alloc;
1504		2040
1505	$self->pre_load;	2041	$self->pre_load;
1506	Coro::cede;	2042	cf::cede_to_tick;
1507		2043
		2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2046	$self->_load_objects ($f)
1509	or return;	2047	or return;
1510		2048
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1512	if delete $self->{load_original};	2050	if delete $self->{load_original};
1513		2051
1514	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2053	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2056	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1519	}	2060	}
1520	}	2061	}
1521		2062
1522	Coro::cede;	2063	$f->resolve_delayed_derefs;
		2064
		2065	cf::cede_to_tick;
1523	# now do the right thing for maps	2066	# now do the right thing for maps
1524	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2068	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2069	unless $self->difficulty;
1527	Coro::cede;	2070	cf::cede_to_tick;
1528		2071
1529	unless ($self->{deny_activate}) {	2072	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2073	$self->decay_objects;
1531	$self->fix_auto_apply;	2074	$self->fix_auto_apply;
1532	$self->update_buttons;	2075	$self->update_buttons;
1533	Coro::cede;	2076	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2077	$self->activate;
1537	}	2078	}
1538		2079
		2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2083	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2084	}
1541		2085
1542	$self->post_load;	2086	$self->post_load;
1543	}	2087	}
1544		2088
…		…
1546	my ($self, $ob) = @_;	2090	my ($self, $ob) = @_;
1547		2091
1548	return find "~" . $ob->name . "/" . $self->{path}	2092	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2093	if $self->per_player;
1550		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
1551	$self	2098	$self
1552	}	2099	}
1553		2100
1554	# find and load all maps in the 3x3 area around a map	2101	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2102	sub load_neighbours {
1556	my ($map) = @_;	2103	my ($map) = @_;
1557		2104
1558	my @diag; # diagonal neighbours	2105	my @neigh; # diagonal neighbours
1559		2106
1560	for (0 .. 3) {	2107	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2108	my $neigh = $map->tile_path ($_)
1562	or next;	2109	or next;
1563	$neigh = find $neigh, $map	2110	$neigh = find $neigh, $map
1564	or next;	2111	or next;
1565	$neigh->load;	2112	$neigh->load;
1566		2113
		2114	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2117	}
1570		2118
1571	for (@diag) {	2119	for (grep defined $_->[0], @neigh) {
		2120	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2121	my $neigh = find $path, $origin
1573	or next;	2122	or next;
1574	$neigh->load;	2123	$neigh->load;
1575	}	2124	}
1576	}	2125	}
1577		2126
…		…
1582	}	2131	}
1583		2132
1584	sub do_load_sync {	2133	sub do_load_sync {
1585	my ($map) = @_;	2134	my ($map) = @_;
1586		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
1587	cf::sync_job { $map->load };	2139	cf::sync_job { $map->load };
1588	}	2140	}
1589		2141
1590	our %MAP_PREFETCH;	2142	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2143	our $MAP_PREFETCHER = undef;
1592		2144
1593	sub find_async {	2145	sub find_async {
1594	my ($path, $origin) = @_;	2146	my ($path, $origin, $load) = @_;
1595		2147
1596	$path = normalise $path, $origin && $origin->{path};	2148	$path = normalise $path, $origin && $origin->{path};
1597		2149
1598	if (my $map = $cf::MAP{$path}) {	2150	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2152	}
1601		2153
1602	undef $MAP_PREFETCH{$path};	2154	$MAP_PREFETCH{$path} |= $load;
		2155
1603	$MAP_PREFETCHER ||= cf::async {	2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
1604	while (%MAP_PREFETCH) {	2159	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2160	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2161	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2162	$map->load if $v;
		2163	}
1609		2164
1610	delete $MAP_PREFETCH{$path};	2165	delete $MAP_PREFETCH{$k};
1611	}	2166	}
1612	}	2167	}
1613	undef $MAP_PREFETCHER;	2168	undef $MAP_PREFETCHER;
1614	};	2169	};
1615	$MAP_PREFETCHER->prio (6);	2170	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2173	}
1619		2174
1620	sub save {	2175	sub save {
1621	my ($self) = @_;	2176	my ($self) = @_;
1622		2177
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2179
1625	$self->{last_save} = $cf::RUNTIME;	2180	$self->{last_save} = $cf::RUNTIME;
1626		2181
1627	return unless $self->dirty;	2182	return unless $self->dirty;
1628		2183
…		…
1634	return if $self->{deny_save};	2189	return if $self->{deny_save};
1635		2190
1636	local $self->{last_access} = $self->last_access;#d#	2191	local $self->{last_access} = $self->last_access;#d#
1637		2192
1638	cf::async {	2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2195	$_->contr->save for $self->players;
1640	};	2196	};
		2197
		2198	cf::get_slot 0.02;
1641		2199
1642	if ($uniq) {	2200	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2203	} else {
…		…
1651	my ($self) = @_;	2209	my ($self) = @_;
1652		2210
1653	# save first because save cedes	2211	# save first because save cedes
1654	$self->save;	2212	$self->save;
1655		2213
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2215
1658	return if $self->players;	2216	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2217	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2218	return if $self->{deny_save};
1661		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2224	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2225	}
1665		2226
1666	sub reset_at {	2227	sub reset_at {
1667	my ($self) = @_;	2228	my ($self) = @_;
1668		2229
1669	# TODO: safety, remove and allow resettable per-player maps	2230	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2231	return 1e99 if $self->{deny_reset};
1672		2232
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2235
…		…
1686	my ($self) = @_;	2246	my ($self) = @_;
1687		2247
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2249
1690	return if $self->players;	2250	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2251
1693	warn "resetting map ", $self->path;#d#	2252	warn "resetting map ", $self->path, "\n";
1694		2253
1695	$self->in_memory (cf::MAP_SWAPPED);	2254	$self->in_memory (cf::MAP_SWAPPED);
1696		2255
1697	# need to save uniques path	2256	# need to save uniques path
1698	unless ($self->{deny_save}) {	2257	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2261	if $uniq;
1703	}	2262	}
1704		2263
1705	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1706		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2268	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2269
1711	$self->unlink_save;	2270	$self->unlink_save;
1712	$self->destroy;	2271	$self->destroy;
1713	}	2272	}
1714		2273
1715	my $nuke_counter = "aaaa";	2274	my $nuke_counter = "aaaa";
1716		2275
1717	sub nuke {	2276	sub nuke {
1718	my ($self) = @_;	2277	my ($self) = @_;
1719		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
1720	delete $cf::MAP{$self->path};	2282	delete $cf::MAP{$self->path};
1721		2283
1722	$self->unlink_save;	2284	$self->unlink_save;
1723		2285
1724	bless $self, "cf::map";	2286	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2287	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2288	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2289	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2291
1730	$cf::MAP{$self->path} = $self;	2292	$cf::MAP{$self->path} = $self;
		2293	}
1731		2294
1732	$self->reset; # polite request, might not happen	2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
1733	}	2332	}
1734		2333
1735	=item cf::map::unique_maps	2334	=item cf::map::unique_maps
1736		2335
1737	Returns an arrayref of paths of all shared maps that have	2336	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2337	instantiated unique items. May block.
1739		2338
1740	=cut	2339	=cut
1741		2340
1742	sub unique_maps() {	2341	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2342	[
1744	or return;	2343	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2344	utf8::decode $_;
1750	next if /\.pst$/;	2345	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2347	? ()
1753	push @paths, cf::map::normalise $_;	2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2350	]
1755
1756	\@paths
1757	}	2351	}
1758		2352
1759	package cf;	2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
1760		2384
1761	=back	2385	=back
1762		2386
1763	=head3 cf::object	2387	=head3 cf::object
1764		2388
…		…
1768		2392
1769	=over 4	2393	=over 4
1770		2394
1771	=item $ob->inv_recursive	2395	=item $ob->inv_recursive
1772		2396
1773	Returns the inventory of the object _and_ their inventories, recursively.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
1774		2399
1775	=cut	2400	=cut
1776		2401
1777	sub inv_recursive_;	2402	sub inv_recursive_;
1778	sub inv_recursive_ {	2403	sub inv_recursive_ {
…		…
1781		2406
1782	sub inv_recursive {	2407	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2408	inv_recursive_ inv $_[0]
1784	}	2409	}
1785		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
1786	package cf;	2439	package cf;
1787		2440
1788	=back	2441	=back
1789		2442
1790	=head3 cf::object::player	2443	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
1799		2452
1800	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
1801		2468
1802	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2470	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
1807		2474
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2476
1810	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
1812	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
1815	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
1816	}	2502	}
1817		2503
1818	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
1819		2505
1820	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
1833		2519
1834	=item $player_object->enter_link	2520	=item $player_object->enter_link
1835		2521
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2522	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2523
1838	The player should be reasonably safe there for short amounts of time. You	2524	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
1840		2528
1841	Will never block.	2529	Will never block.
1842		2530
1843	=item $player_object->leave_link ($map, $x, $y)	2531	=item $player_object->leave_link ($map, $x, $y)
1844		2532
…		…
1862	}	2550	}
1863		2551
1864	sub cf::object::player::enter_link {	2552	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2553	my ($self) = @_;
1866		2554
		2555	$self->deactivate_recursive;
		2556
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2557	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2558
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2559	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2560	if $self->map && $self->map->{path} ne "{link}";
1871		2561
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2562	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2563	}
1874		2564
1875	sub cf::object::player::leave_link {	2565	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2566	my ($self, $map, $x, $y) = @_;
		2567
		2568	return unless $self->contr->active;
1877		2569
1878	my $link_pos = delete $self->{_link_pos};	2570	my $link_pos = delete $self->{_link_pos};
1879		2571
1880	unless ($map) {	2572	unless ($map) {
1881	# restore original map position	2573	# restore original map position
…		…
1892	($x, $y) = (-1, -1)	2584	($x, $y) = (-1, -1)
1893	unless (defined $x) && (defined $y);	2585	unless (defined $x) && (defined $y);
1894		2586
1895	# use -1 or undef as default coordinates, not 0, 0	2587	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2588	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2589	if $x <= 0 && $y <= 0;
1898		2590
1899	$map->load;	2591	$map->load;
1900	$map->load_diag;	2592	$map->load_neighbours;
1901		2593
1902	return unless $self->contr->active;	2594	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2595
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2597	$self->enter_map ($map, $x, $y);
1907	}
1908		2598
1909	cf::player->attach (	2599	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2600	$self->activate_recursive;
1911	my ($pl) = @_;	2601	}
1912		2602
1913	# abort map switching before logout	2603	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2604
1923	# try to abort aborted map switching on player login :)	2605	Moves the player to the given map-path and coordinates by first freezing
1924	# should happen only on crashes	2606	her, loading and preparing them map, calling the provided $check callback
1925	if ($pl->ob->{_link_pos}) {	2607	that has to return the map if sucecssful, and then unfreezes the player on
1926	$pl->ob->enter_link;	2608	the new (success) or old (failed) map position. In either case, $done will
1927	(async {	2609	be called at the end of this process.
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2610
1941	=item $player_object->goto ($path, $x, $y)	2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
1942		2613
1943	=cut	2614	=cut
		2615
		2616	our $GOTOGEN;
1944		2617
1945	sub cf::object::player::goto {	2618	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2619	my ($self, $path, $x, $y, $check, $done) = @_;
		2620
		2621	# do generation counting so two concurrent goto's will be executed in-order
		2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1947		2623
1948	$self->enter_link;	2624	$self->enter_link;
1949		2625
1950	(async {	2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
1951	my $map = eval {	2648	my $map = eval {
1952	my $map = cf::map::find $path;	2649	my $map = defined $path ? cf::map::find $path : undef;
		2650
		2651	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2652	$map = $map->customise_for ($self);
		2653	$map = $check->($map) if $check && $map;
		2654	} else {
		2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	}
		2657
1954	$map	2658	$map
		2659	};
		2660
		2661	if ($@) {
		2662	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	LOG llevError | logBacktrace, Carp::longmess $@;
1955	} or	2664	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2665
		2666	if ($gen == $self->{_goto_generation}) {
		2667	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2668	$self->leave_link ($map, $x, $y);
		2669	}
		2670
		2671	$done->() if $done;
1959	})->prio (1);	2672	})->prio (1);
1960	}	2673	}
1961		2674
1962	=item $player_object->enter_exit ($exit_object)	2675	=item $player_object->enter_exit ($exit_object)
1963		2676
…		…
1983	}	2696	}
1984		2697
1985	sub prepare_random_map {	2698	sub prepare_random_map {
1986	my ($exit) = @_;	2699	my ($exit) = @_;
1987		2700
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2701	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2702	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2703	# that depends on the exit object
1993		2704
1994	my $rmp = parse_random_map_params $exit->msg;	2705	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2707	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2708	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2709	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2710	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
2001	}	2714	}
2002		2715
2003	$rmp->{random_seed} ||= $exit->random_seed;	2716	$rmp->{random_seed} ||= $exit->random_seed;
2004		2717
2005	my $data = cf::to_json $rmp;	2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2719	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2720	my $meta = "$RANDOMDIR/$md5.meta";
2008		2721
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2723	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2724	undef $fh;
2012	aio_rename "$meta~", $meta;	2725	aio_rename "$meta~", $meta;
2013		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2730	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2731	$exit->msg (undef);
		2732	}
2016	}	2733	}
2017	}	2734	}
2018		2735
2019	sub cf::object::player::enter_exit {	2736	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2737	my ($self, $exit) = @_;
2021		2738
2022	return unless $self->type == cf::PLAYER;	2739	return unless $self->type == cf::PLAYER;
2023		2740
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	2741	$self->enter_link;
2036		2742
2037	(async {	2743	(async {
2038	$self->deactivate_recursive; # just to be sure	2744	$Coro::current->{desc} = "enter_exit";
		2745
2039	unless (eval {	2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
2040	$self->goto ($slaying, $hp, $sp);	2761	$self->goto ($map, $x, $y);
2041		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
2042	1;	2767	1
2043	}) {	2768	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2769	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "I'll try to bring you back to the map you were before. "	2770	. "I'll try to bring you back to the map you were before. "
2046	. "Please report this to the dungeon master!",	2771	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2772	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2773
2049	warn "ERROR in enter_exit: $@";	2774	warn "ERROR in enter_exit: $@";
…		…
2068		2793
2069	utf8::encode $text;	2794	utf8::encode $text;
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2071	}	2796	}
2072		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
2073	=item $client->ext_event ($type, %msg)	2985	=item $client->ext_msg ($type, @msg)
2074		2986
2075	Sends an exti event to the client.	2987	Sends an ext event to the client.
2076		2988
2077	=cut	2989	=cut
2078		2990
2079	sub cf::client::ext_event($$%) {	2991	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	2992	my ($self, $type, @msg) = @_;
2081		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	2997	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
2084	}	3018	}
2085		3019
2086	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
2087		3021
2088	Queues a query to the client, calling the given callback with	3022	Queues a query to the client, calling the given callback with
2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2090	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		3025
2092	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	3027	become reliable at some point in the future.
2094		3028
2095	=cut	3029	=cut
2096		3030
2097	sub cf::client::query {	3031	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3040	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3042
2109	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
2111	}	3047	}
2112		3048
2113	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
2114	on_reply => sub {	3055	on_reply => sub {
2115	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
2116		3057
2117	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
2118	# get handled first	3059	# get handled first
…		…
2130	} else {	3071	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3073	}
2133	}	3074	}
2134	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
2135	);	3102	);
2136		3103
2137	=item $client->async (\&cb)	3104	=item $client->async (\&cb)
2138		3105
2139	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
2182		3149
2183	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
2184		3151
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
2186		3157
2187	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
2188		3159
2189	=pod	3160	=pod
2190		3161
2191	The following functions and methods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
2192		3163
2193	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
2194	cf::object::player player	3169	cf::object::player
2195	cf::player peaceful	3170	player
2196	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
2197		3177
2198	=cut	3178	=cut
2199		3179
2200	for (	3180	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
2202	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
2205	) {	3187	) {
2206	no strict 'refs';	3188	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2226		3208
2227	my $qcode = $code;	3209	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
2230		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
2231	local $_;	3216	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;
2233		3217
2234	my $eval =	3218	my $eval =
2235	"do {\n"	3219	"do {\n"
2236	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2237	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
2238	. $code	3222	. $code
2239	. "\n}"	3223	. "\n}"
2240	;	3224	;
2241		3225
		3226	if ($CFG{safe_eval}) {
2242	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
2243	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2244	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
2245		3235
2246	if ($@) {	3236	if ($@) {
2247	warn "$@";	3237	warn "$@";
2248	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
2249	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2268	=cut	3258	=cut
2269		3259
2270	sub register_script_function {	3260	sub register_script_function {
2271	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
2272		3262
2273	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
2274	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
2275	}	3265	}
2276		3266
2277	=back	3267	=back
2278		3268
2279	=cut	3269	=cut
2280
2281	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453		3270
2454	#############################################################################	3271	#############################################################################
2455	# the server's init and main functions	3272	# the server's init and main functions
2456		3273
2457	sub load_facedata($) {	3274	sub load_facedata($) {
2458	my ($path) = @_;	3275	my ($path) = @_;
		3276
		3277	# HACK to clear player env face cache, we need some signal framework
		3278	# for this (global event?)
		3279	%ext::player_env::MUSIC_FACE_CACHE = ();
		3280
		3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		3282
2460	warn "loading facedata from $path\n";	3283	warn "loading facedata from $path\n";
2461		3284
2462	my $facedata;	3285	my $facedata;
2463	0 < aio_load $path, $facedata	3286	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3289	$facedata = Coro::Storable::thaw $facedata;
2467		3290
2468	$facedata->{version} == 2	3291	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		3293
		3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
		3302
2471	{	3303	{
2472	my $faces = $facedata->{faceinfo};	3304	my $faces = $facedata->{faceinfo};
2473		3305
2474	while (my ($face, $info) = each %$faces) {	3306	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3308
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2479	Coro::cede;	3313
		3314	cf::cede_to_tick;
2480	}	3315	}
2481		3316
2482	while (my ($face, $info) = each %$faces) {	3317	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3318	next unless $info->{smooth};
		3319
2484	my $idx = cf::face::find $face	3320	my $idx = cf::face::find $face
2485	or next;	3321	or next;
		3322
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3323	if (my $smooth = cf::face::find $info->{smooth}) {
		3324	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3326	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3328	}
2491	Coro::cede;	3329
		3330	cf::cede_to_tick;
2492	}	3331	}
2493	}	3332	}
2494		3333
2495	{	3334	{
2496	my $anims = $facedata->{animinfo};	3335	my $anims = $facedata->{animinfo};
2497		3336
2498	while (my ($anim, $info) = each %$anims) {	3337	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3339	cf::cede_to_tick;
2501	}	3340	}
2502		3341
2503	cf::anim::invalidate_all; # d'oh	3342	cf::anim::invalidate_all; # d'oh
2504	}	3343	}
2505		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3363
2506	1	3364	1
2507	}	3365	}
2508		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
2509	sub reload_regions {	3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
2510	load_resource_file "$MAPDIR/regions"	3410	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
2512	}	3417	}
2513		3418
2514	sub reload_facedata {	3419	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3420	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3421	or die "unable to load facedata\n";
…		…
2527	}	3432	}
2528		3433
2529	sub reload_resources {	3434	sub reload_resources {
2530	warn "reloading resource files...\n";	3435	warn "reloading resource files...\n";
2531		3436
2532	reload_regions;
2533	reload_facedata;	3437	reload_facedata;
2534	reload_archetypes;	3438	reload_archetypes;
		3439	reload_regions;
2535	reload_treasures;	3440	reload_treasures;
2536		3441
2537	warn "finished reloading resource files\n";	3442	warn "finished reloading resource files\n";
2538	}	3443	}
2539		3444
2540	sub init {	3445	sub reload_config {
2541	reload_resources;	3446	warn "reloading config file...\n";
2542	}
2543		3447
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3448	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3449	or return;
2547		3450
2548	local $/;	3451	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3452	*CFG = YAML::XS::Load scalar <$fh>;
2550		3453
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2552		3455
2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2559	and die "WARNING: m(un)lockall failed: $!\n";	3462	and die "WARNING: m(un)lockall failed: $!\n";
2560	};	3463	};
2561	warn $@ if $@;	3464	warn $@ if $@;
2562	}	3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
2563	}	3496	}
2564		3497
2565	sub main {	3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
2566	# we must not ever block the main coroutine	3513	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3514	local $Coro::idle = sub {
2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2569	(async {	3516	(async {
2570	Event::one_event;	3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3519	})->prio (Coro::PRIO_MAX);
2572	};	3520	};
2573		3521
2574	cfg_load;	3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
2575	db_init;	3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
2576	load_extensions;	3541	load_extensions;
2577		3542
2578	$TICK_WATCHER->start;	3543	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
2580	}	3553	}
2581		3554
2582	#############################################################################	3555	#############################################################################
2583	# initialisation and cleanup	3556	# initialisation and cleanup
2584		3557
2585	# install some emergency cleanup handlers	3558	# install some emergency cleanup handlers
2586	BEGIN {	3559	BEGIN {
		3560	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3561	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	3563	cf::cleanup "SIG$signal";
2595	},
2596	);	3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
2597	}	3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
2598	}	3652	}
2599		3653
2600	sub emergency_save() {	3654	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3655	my $freeze_guard = cf::freeze_mainloop;
2602		3656
2603	warn "enter emergency perl save\n";	3657	warn "emergency_perl_save: enter\n";
2604		3658
2605	cf::sync_job {	3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
2606	# use a peculiar iteration method to avoid tripping on perl	3665	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3666	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3667	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3668	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3669	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3670	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3673	$pl->save;
2614	}	3674	}
2615	warn "end emergency player save\n";	3675	warn "emergency_perl_save: end player save\n";
2616		3676
2617	warn "begin emergency map save\n";	3677	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3678	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3679	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3680	$map->valid or next;
2621	$map->save;	3681	$map->save;
2622	}	3682	}
2623	warn "end emergency map save\n";	3683	warn "emergency_perl_save: end map save\n";
2624		3684
2625	warn "begin emergency database checkpoint\n";	3685	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3686	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
2628	};	3692	};
2629		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
2630	warn "leave emergency perl save\n";	3699	warn "emergency_perl_save: leave\n";
2631	}	3700	}
2632		3701
2633	sub post_cleanup {	3702	sub post_cleanup {
2634	my ($make_core) = @_;	3703	my ($make_core) = @_;
2635		3704
2636	warn Carp::longmess "post_cleanup backtrace"	3705	warn Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	3706	if $make_core;
		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
2638	}	3736	}
2639		3737
2640	sub do_reload_perl() {	3738	sub do_reload_perl() {
2641	# can/must only be called in main	3739	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3740	if ($Coro::current != $Coro::main) {
2643	warn "can only reload from main coroutine";	3741	warn "can only reload from main coroutine";
2644	return;	3742	return;
2645	}	3743	}
2646		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
2647	warn "reloading...";	3750	warn "reloading...";
2648		3751
2649	warn "entering sync_job";	3752	warn "entering sync_job";
2650		3753
2651	cf::sync_job {	3754	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3755	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3756	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2655		3758
2656	warn "syncing database to disk";	3759	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3760	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3761
2659	# if anything goes wrong in here, we should simply crash as we already saved	3762	# if anything goes wrong in here, we should simply crash as we already saved
2660		3763
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";	3764	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;	3765	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();
2680
2681	warn "removing commands";
2682	%COMMAND = ();
2683
2684	warn "removing ext commands";
2685	%EXTCMD = ();
2686
2687	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";
2690
2691	if (my $cb = $pkg->can ("unload")) {
2692	eval {
2693	$cb->($pkg);
2694	1
2695	} or warn "$pkg unloaded, but with errors: $@";
2696	}	3767	}
2697		3768
2698	warn "... nuking $pkg";	3769	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3770	$_->cancel for values %EXT_CORO;
2700	}	3771	%EXT_CORO = ();
2701		3772
2702	warn "unloading all perl modules loaded from $LIBDIR";	3773	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3774	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3782	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3783
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
2713	$cb->();	3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
2714	}	3793	}
2715		3794
2716	Symbol::delete_package $k;	3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
2717	}	3810	}
2718		3811
2719	warn "getting rid of safe::, as good as possible";	3812	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3813	clear_package "safe::$_"
2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2722		3815
2723	warn "unloading cf.pm \"a bit\"";	3816	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3817	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3819
2727	# don't, removes xs symbols, too,	3820	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3821	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3822	#clear_package __PACKAGE__;
2730		3823
2731	warn "unload completed, starting to reload now";	3824	warn "unload completed, starting to reload now";
2732		3825
2733	warn "reloading cf.pm";	3826	warn "reloading cf.pm";
2734	require cf;	3827	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3828	cf::_connect_to_perl_1;
2736		3829
2737	warn "loading config and database again";	3830	warn "loading config and database again";
2738	cf::cfg_load;	3831	cf::reload_config;
2739		3832
2740	warn "loading extensions";	3833	warn "loading extensions";
2741	cf::load_extensions;	3834	cf::load_extensions;
2742		3835
		3836	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3837	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3838	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3839	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3840	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3841	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3842	reattach $_ for values %PLAYER;
		3843	}
2749		3844
		3845	warn "running post_init jobs";
		3846	(pop @POST_INIT)->(1) while @POST_INIT;
		3847
2750	warn "leaving sync_job";	3848	warn "leaving sync_job";
2751		3849
2752	1	3850	1
2753	} or do {	3851	} or do {
2754	warn $@;	3852	warn $@;
2755	warn "error while reloading, exiting.";	3853	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3854	};
2758		3855
2759	warn "reloaded";	3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
2760	};	3862	};
2761		3863
2762	our $RELOAD_WATCHER; # used only during reload	3864	our $RELOAD_WATCHER; # used only during reload
2763		3865
2764	sub reload_perl() {	3866	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3867	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3868	# coro crashes during coro_state_free->destroy here.
2767		3869
2768	$RELOAD_WATCHER ||= Event->timer (	3870	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3871	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3872
2771	data => WF_AUTOCANCEL,	3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3874	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3875	undef $RELOAD_WATCHER;
2775	},	3876	};
2776	);	3877	};
2777	}	3878	}
2778		3879
2779	register_command "reload" => sub {	3880	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3881	my ($who, $arg) = @_;
2781		3882
2782	if ($who->flag (FLAG_WIZ)) {	3883	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3884	$who->message ("reloading server.");
		3885	async {
		3886	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3887	reload_perl;
		3888	};
2785	}	3889	}
2786	};	3890	};
2787		3891
2788	unshift @INC, $LIBDIR;	3892	unshift @INC, $LIBDIR;
2789		3893
…		…
2791		3895
2792	our @WAIT_FOR_TICK;	3896	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3897	our @WAIT_FOR_TICK_BEGIN;
2794		3898
2795	sub wait_for_tick {	3899	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2798		3901
2799	my $signal = new Coro::Signal;	3902	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3903	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3904	$signal->wait;
2802	}	3905	}
2803		3906
2804	sub wait_for_tick_begin {	3907	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2807		3909
2808	my $signal = new Coro::Signal;	3910	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3911	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3912	$signal->wait;
2811	}	3913	}
2812		3914
2813	$TICK_WATCHER = Event->timer (	3915	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	3916	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	3918	unless ++$bug_warning > 10;
2823	return;	3919	return;
2824	}	3920	}
2825		3921
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	3922	cf::server_tick; # one server iteration
2829		3923
2830	$RUNTIME += $TICK;	3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2831	$NEXT_TICK += $TICK;
2832		3925
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	3930	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	3932	};
		3933	}
2840		3934
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	3936	$sig->send;
2852	}	3937	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	3938	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	3939	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	3940	}
2859	);	3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
2860		3953
2861	{	3954	{
2862	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	3956
2864	reentrant => 0,
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	3957	BDB::min_parallel 16;
2872		3958	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		3960
2888	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2890		3968
2891	cf::sync_job {	3969	cf::sync_job {
2892	eval {	3970	eval {
2893	BDB::db_env_open	3971	BDB::db_env_open
2894	$DB_ENV,	3972	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	3976	0666;
2899		3977
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	3979	};
2905		3980
2906	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	3982	};
2908	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2909	}	3994	}
2910		3995
2911	{	3996	{
		3997	# configure IO::AIO
		3998
2912	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	4002	}
2918	data => WF_AUTOCANCEL,	4003
2919	fd => IO::AIO::poll_fileno,	4004	my $_log_backtrace;
2920	poll => 'r',	4005
2921	prio => 6,	4006	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	4007	my ($msg, @addr) = @_;
2923	);	4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
2924	}	4044	}
2925		4045
2926	# load additional modules	4046	# load additional modules
2927	use cf::pod;	4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2928		4049
2929	END { cf::emergency_save }	4050	END { cf::emergency_save }
2930		4051
2931	1	4052	1
2932		4053

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