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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC vs.
Revision 1.506 by root, Wed Feb 3 20:48:22 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 $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
951	1	1435	}
952	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
953	}	1446	};
954	}	1447	}
955		1448
956	#############################################################################	1449	#############################################################################
957		1450
		1451	=back
		1452
958	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
959		1454
960	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
961		1456
962	=cut	1457	=cut
963		1458
964	package cf::player;	1459	package cf::player;
965		1460
966	use Coro::AIO;	1461	use Coro::AIO;
967		1462
968	=head3 cf::player	1463	=head3 cf::player
969		1464
970	=over 4	1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
971		1480
972	=item cf::player::find $login	1481	=item cf::player::find $login
973		1482
974	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
975		1484
…		…
994		1503
995	sub exists($) {	1504	sub exists($) {
996	my ($login) = @_;	1505	my ($login) = @_;
997		1506
998	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1000	}	1509	}
1001		1510
1002	sub find($) {	1511	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1513	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1524
1016	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1019	}	1534	}
1020	}	1535	}
1021	}	1536	}
1022		1537
…		…
1031	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1032		1547
1033	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1035		1550
		1551	cf::get_slot 0.01;
		1552
1036	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1037	Coro::cede;	1554	cf::cede_to_tick;
1038	}	1555	}
1039		1556
1040	sub new($) {	1557	sub new($) {
1041	my ($login) = @_;	1558	my ($login) = @_;
1042		1559
…		…
1048	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1049		1566
1050	$self	1567	$self
1051	}	1568	}
1052		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1053	=item $pl->quit_character	1580	=item $pl->quit_character
1054		1581
1055	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1057		1584
…		…
1061	my ($pl) = @_;	1588	my ($pl) = @_;
1062		1589
1063	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1064		1591
1065	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1594
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1072		1601
1073	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1639	or return [];
1111		1640
1112	my @logins;	1641	my @logins;
1113		1642
1114	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1118		1653
1119	utf8::decode $login;	1654	utf8::decode $login;
1120	push @logins, $login;	1655	push @logins, $login;
1121	}	1656	}
1122		1657
…		…
1149	}	1684	}
1150		1685
1151	\@paths	1686	\@paths
1152	}	1687	}
1153		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1154	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1155		1694
1156	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1157		1696
1158	=cut	1697	=cut
1159		1698
1160	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1162		1701
1163	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1703	}
1167		1704
1168	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1169		1706
1170	Sends an ext event to the client.	1707	Sends an ext event to the client.
1171		1708
1172	=cut	1709	=cut
1173		1710
1174	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1176		1713
1177	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1178	}	1715	}
1179		1716
1180	=head3 cf::region	1717	=head3 cf::region
1181		1718
1182	=over 4	1719	=over 4
…		…
1185		1722
1186	package cf::region;	1723	package cf::region;
1187		1724
1188	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1189		1726
1190	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1191		1728
1192	=cut	1729	=cut
1193		1730
1194	sub find_by_path($) {	1731	sub find_by_path($) {
1195	my ($path) = @_;	1732	my ($path) = @_;
1196		1733
1197	my ($match, $specificity);	1734	my ($match, $specificity);
1198		1735
1199	for my $region (list) {	1736	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1203	}	1740	}
1204	}	1741	}
1205		1742
…		…
1226	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1228		1765
1229	sub generate_random_map {	1766	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1231	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1772	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1270		1810
1271	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1272	local $self->{path};	1812	local $self->{path};
1273	local $self->{load_path};	1813	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1814
1277	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1278	}	1816	}
1279		1817
1280	sub normalise {	1818	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1328	return $self;	1866	return $self;
1329	}	1867	}
1330	}	1868	}
1331		1869
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1871	()
1334	}	1872	}
1335		1873
1336	sub init {	1874	sub init {
1337	my ($self) = @_;	1875	my ($self) = @_;
…		…
1359		1897
1360	# the temporary/swap location	1898	# the temporary/swap location
1361	sub save_path {	1899	sub save_path {
1362	my ($self) = @_;	1900	my ($self) = @_;
1363		1901
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1903	"$TMPDIR/$path.map"
1366	}	1904	}
1367		1905
1368	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1369	sub uniq_path {	1907	sub uniq_path {
1370	my ($self) = @_;	1908	my ($self) = @_;
1371		1909
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1911	"$UNIQUEDIR/$path"
1374	}	1912	}
1375		1913
1376	# and all this just because we cannot iterate over	1914	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1915	my ($self) = @_;
1380		1916
1381	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1383	}	1920	}
1384		1921
1385	sub unlink_save {	1922	sub unlink_save {
1386	my ($self) = @_;	1923	my ($self) = @_;
1387		1924
…		…
1392		1929
1393	sub load_header_from($) {	1930	sub load_header_from($) {
1394	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1395		1932
1396	utf8::encode $path;	1933	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1402		1942
1403	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1404		1944
1405	1	1945	1
1406	}	1946	}
…		…
1445	$self->load_header_orig	1985	$self->load_header_orig
1446	or return;	1986	or return;
1447	$self->prepare_orig;	1987	$self->prepare_orig;
1448	}	1988	}
1449		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1450	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1994	unless $self->default_region;
1452		1995
1453	1	1996	1
1454	}	1997	}
…		…
1457	sub find {	2000	sub find {
1458	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1459		2002
1460	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1461		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2007
1464	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1467	or return;	2010	or return;
1468		2011
1469	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1470		2013
1471	$map->load_header	2014	$map->load_header
1472	or return;	2015	or return;
1473		2016
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1477	$map->reset;	2022	$map->reset;
1478	undef $guard;
1479	return find $path;	2023	return find $path;
1480	}	2024	}
1481		2025
1482	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1483	}	2027	}
1484	}	2028	}
1485		2029
1486	sub pre_load { }	2030	sub pre_load { }
1487	sub post_load { }	2031	#sub post_load { } # XS
1488		2032
1489	sub load {	2033	sub load {
1490	my ($self) = @_;	2034	my ($self) = @_;
1491		2035
1492	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1493		2037
1494	my $path = $self->{path};	2038	my $path = $self->{path};
1495		2039
1496	{	2040	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1498		2042
		2043	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2045
1501	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1502		2047
1503	$self->alloc;	2048	$self->alloc;
1504		2049
1505	$self->pre_load;	2050	$self->pre_load;
1506	Coro::cede;	2051	cf::cede_to_tick;
1507		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2055	$self->_load_objects ($f)
1509	or return;	2056	or return;
1510		2057
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1512	if delete $self->{load_original};	2059	if delete $self->{load_original};
1513		2060
1514	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2062	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2065	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1519	}	2069	}
1520	}	2070	}
1521		2071
1522	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1523	# now do the right thing for maps	2075	# now do the right thing for maps
1524	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2078	unless $self->difficulty;
1527	Coro::cede;	2079	cf::cede_to_tick;
1528		2080
1529	unless ($self->{deny_activate}) {	2081	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2082	$self->decay_objects;
1531	$self->fix_auto_apply;	2083	$self->fix_auto_apply;
1532	$self->update_buttons;	2084	$self->update_buttons;
1533	Coro::cede;	2085	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2086	$self->activate;
1537	}	2087	}
1538		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
1540
1541	undef $guard;
1542	}	2093	}
1543		2094
1544	$self->post_load;	2095	$self->post_load;
1545	}	2096	}
1546		2097
…		…
1548	my ($self, $ob) = @_;	2099	my ($self, $ob) = @_;
1549		2100
1550	return find "~" . $ob->name . "/" . $self->{path}	2101	return find "~" . $ob->name . "/" . $self->{path}
1551	if $self->per_player;	2102	if $self->per_player;
1552		2103
		2104	# return find "?party/" . $ob->name . "/" . $self->{path}
		2105	# if $self->per_party;
		2106
1553	$self	2107	$self
1554	}	2108	}
1555		2109
1556	# find and load all maps in the 3x3 area around a map	2110	# find and load all maps in the 3x3 area around a map
1557	sub load_diag {	2111	sub load_neighbours {
1558	my ($map) = @_;	2112	my ($map) = @_;
1559		2113
1560	my @diag; # diagonal neighbours	2114	my @neigh; # diagonal neighbours
1561		2115
1562	for (0 .. 3) {	2116	for (0 .. 3) {
1563	my $neigh = $map->tile_path ($_)	2117	my $neigh = $map->tile_path ($_)
1564	or next;	2118	or next;
1565	$neigh = find $neigh, $map	2119	$neigh = find $neigh, $map
1566	or next;	2120	or next;
1567	$neigh->load;	2121	$neigh->load;
1568		2122
		2123	push @neigh,
1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2124	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2125	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1571	}	2126	}
1572		2127
1573	for (@diag) {	2128	for (grep defined $_->[0], @neigh) {
		2129	my ($path, $origin) = @$_;
1574	my $neigh = find @$_	2130	my $neigh = find $path, $origin
1575	or next;	2131	or next;
1576	$neigh->load;	2132	$neigh->load;
1577	}	2133	}
1578	}	2134	}
1579		2135
…		…
1584	}	2140	}
1585		2141
1586	sub do_load_sync {	2142	sub do_load_sync {
1587	my ($map) = @_;	2143	my ($map) = @_;
1588		2144
		2145	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2146	if $Coro::current == $Coro::main;
		2147
1589	cf::sync_job { $map->load };	2148	cf::sync_job { $map->load };
1590	}	2149	}
1591		2150
1592	our %MAP_PREFETCH;	2151	our %MAP_PREFETCH;
1593	our $MAP_PREFETCHER = undef;	2152	our $MAP_PREFETCHER = undef;
1594		2153
1595	sub find_async {	2154	sub find_async {
1596	my ($path, $origin) = @_;	2155	my ($path, $origin, $load) = @_;
1597		2156
1598	$path = normalise $path, $origin && $origin->{path};	2157	$path = normalise $path, $origin && $origin->{path};
1599		2158
1600	if (my $map = $cf::MAP{$path}) {	2159	if (my $map = $cf::MAP{$path}) {
1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2160	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1602	}	2161	}
1603		2162
1604	undef $MAP_PREFETCH{$path};	2163	$MAP_PREFETCH{$path} |= $load;
		2164
1605	$MAP_PREFETCHER ||= cf::async {	2165	$MAP_PREFETCHER ||= cf::async {
		2166	$Coro::current->{desc} = "map prefetcher";
		2167
1606	while (%MAP_PREFETCH) {	2168	while (%MAP_PREFETCH) {
1607	for my $path (keys %MAP_PREFETCH) {	2169	while (my ($k, $v) = each %MAP_PREFETCH) {
1608	my $map = find $path	2170	if (my $map = find $k) {
1609	or next;
1610	$map->load;	2171	$map->load if $v;
		2172	}
1611		2173
1612	delete $MAP_PREFETCH{$path};	2174	delete $MAP_PREFETCH{$k};
1613	}	2175	}
1614	}	2176	}
1615	undef $MAP_PREFETCHER;	2177	undef $MAP_PREFETCHER;
1616	};	2178	};
1617	$MAP_PREFETCHER->prio (6);	2179	$MAP_PREFETCHER->prio (6);
…		…
1620	}	2182	}
1621		2183
1622	sub save {	2184	sub save {
1623	my ($self) = @_;	2185	my ($self) = @_;
1624		2186
1625	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1626		2188
1627	$self->{last_save} = $cf::RUNTIME;	2189	$self->{last_save} = $cf::RUNTIME;
1628		2190
1629	return unless $self->dirty;	2191	return unless $self->dirty;
1630		2192
…		…
1636	return if $self->{deny_save};	2198	return if $self->{deny_save};
1637		2199
1638	local $self->{last_access} = $self->last_access;#d#	2200	local $self->{last_access} = $self->last_access;#d#
1639		2201
1640	cf::async {	2202	cf::async {
		2203	$Coro::current->{desc} = "map player save";
1641	$_->contr->save for $self->players;	2204	$_->contr->save for $self->players;
1642	};	2205	};
		2206
		2207	cf::get_slot 0.02;
1643		2208
1644	if ($uniq) {	2209	if ($uniq) {
1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2210	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2211	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1647	} else {	2212	} else {
…		…
1653	my ($self) = @_;	2218	my ($self) = @_;
1654		2219
1655	# save first because save cedes	2220	# save first because save cedes
1656	$self->save;	2221	$self->save;
1657		2222
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2223	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2224
1660	return if $self->players;	2225	return if $self->players;
1661	return if $self->in_memory != cf::MAP_IN_MEMORY;	2226	return if $self->in_memory != cf::MAP_ACTIVE;
1662	return if $self->{deny_save};	2227	return if $self->{deny_save};
1663		2228
		2229	$self->in_memory (cf::MAP_SWAPPED);
		2230
		2231	$self->deactivate;
		2232	$_->clear_links_to ($self) for values %cf::MAP;
1664	$self->clear;	2233	$self->clear;
1665	$self->in_memory (cf::MAP_SWAPPED);
1666	}	2234	}
1667		2235
1668	sub reset_at {	2236	sub reset_at {
1669	my ($self) = @_;	2237	my ($self) = @_;
1670		2238
1671	# TODO: safety, remove and allow resettable per-player maps	2239	# TODO: safety, remove and allow resettable per-player maps
1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1673	return 1e99 if $self->{deny_reset};	2240	return 1e99 if $self->{deny_reset};
1674		2241
1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2242	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2243	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1677		2244
…		…
1688	my ($self) = @_;	2255	my ($self) = @_;
1689		2256
1690	my $lock = cf::lock_acquire "map_data:$self->{path}";	2257	my $lock = cf::lock_acquire "map_data:$self->{path}";
1691		2258
1692	return if $self->players;	2259	return if $self->players;
1693	return if $self->isa ("ext::map_per_player");#d#
1694		2260
1695	warn "resetting map ", $self->path;#d#	2261	warn "resetting map ", $self->path, "\n";
1696		2262
1697	$self->in_memory (cf::MAP_SWAPPED);	2263	$self->in_memory (cf::MAP_SWAPPED);
1698		2264
1699	# need to save uniques path	2265	# need to save uniques path
1700	unless ($self->{deny_save}) {	2266	unless ($self->{deny_save}) {
…		…
1704	if $uniq;	2270	if $uniq;
1705	}	2271	}
1706		2272
1707	delete $cf::MAP{$self->path};	2273	delete $cf::MAP{$self->path};
1708		2274
		2275	$self->deactivate;
		2276	$_->clear_links_to ($self) for values %cf::MAP;
1709	$self->clear;	2277	$self->clear;
1710
1711	$_->clear_links_to ($self) for values %cf::MAP;
1712		2278
1713	$self->unlink_save;	2279	$self->unlink_save;
1714	$self->destroy;	2280	$self->destroy;
1715	}	2281	}
1716		2282
1717	my $nuke_counter = "aaaa";	2283	my $nuke_counter = "aaaa";
1718		2284
1719	sub nuke {	2285	sub nuke {
1720	my ($self) = @_;	2286	my ($self) = @_;
1721		2287
		2288	{
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
1722	delete $cf::MAP{$self->path};	2291	delete $cf::MAP{$self->path};
1723		2292
1724	$self->unlink_save;	2293	$self->unlink_save;
1725		2294
1726	bless $self, "cf::map";	2295	bless $self, "cf::map";
1727	delete $self->{deny_reset};	2296	delete $self->{deny_reset};
1728	$self->{deny_save} = 1;	2297	$self->{deny_save} = 1;
1729	$self->reset_timeout (1);	2298	$self->reset_timeout (1);
1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2299	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1731		2300
1732	$cf::MAP{$self->path} = $self;	2301	$cf::MAP{$self->path} = $self;
		2302	}
1733		2303
1734	$self->reset; # polite request, might not happen	2304	$self->reset; # polite request, might not happen
		2305	}
		2306
		2307	=item $maps = cf::map::tmp_maps
		2308
		2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	maps. May block.
		2311
		2312	=cut
		2313
		2314	sub tmp_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise $_
		2320	: ()
		2321	} @{ aio_readdir $TMPDIR or [] }
		2322	]
		2323	}
		2324
		2325	=item $maps = cf::map::random_maps
		2326
		2327	Returns an arrayref with all map paths of currently instantiated and saved
		2328	random maps. May block.
		2329
		2330	=cut
		2331
		2332	sub random_maps() {
		2333	[
		2334	map {
		2335	utf8::decode $_;
		2336	/\.map$/
		2337	? normalise "?random/$_"
		2338	: ()
		2339	} @{ aio_readdir $RANDOMDIR or [] }
		2340	]
1735	}	2341	}
1736		2342
1737	=item cf::map::unique_maps	2343	=item cf::map::unique_maps
1738		2344
1739	Returns an arrayref of paths of all shared maps that have	2345	Returns an arrayref of paths of all shared maps that have
1740	instantiated unique items. May block.	2346	instantiated unique items. May block.
1741		2347
1742	=cut	2348	=cut
1743		2349
1744	sub unique_maps() {	2350	sub unique_maps() {
1745	my $files = aio_readdir $UNIQUEDIR	2351	[
1746	or return;	2352	map {
1747
1748	my @paths;
1749
1750	for (@$files) {
1751	utf8::decode $_;	2353	utf8::decode $_;
1752	next if /\.pst$/;	2354	s/\.map$//; # TODO future compatibility hack
1753	next unless /^$PATH_SEP/o;	2355	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1754		2356	? ()
1755	push @paths, cf::map::normalise $_;	2357	: normalise $_
		2358	} @{ aio_readdir $UNIQUEDIR or [] }
1756	}	2359	]
1757
1758	\@paths
1759	}	2360	}
1760		2361
1761	package cf;	2362	=item cf::map::static_maps
		2363
		2364	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2365	file in the shared directory excluding F</styles> and F</editor>). May
		2366	block.
		2367
		2368	=cut
		2369
		2370	sub static_maps() {
		2371	my @dirs = "";
		2372	my @maps;
		2373
		2374	while (@dirs) {
		2375	my $dir = shift @dirs;
		2376
		2377	next if $dir eq "/styles" || $dir eq "/editor";
		2378
		2379	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2380	or return;
		2381
		2382	for (@$files) {
		2383	s/\.map$// or next;
		2384	utf8::decode $_;
		2385	push @maps, "$dir/$_";
		2386	}
		2387
		2388	push @dirs, map "$dir/$_", @$dirs;
		2389	}
		2390
		2391	\@maps
		2392	}
1762		2393
1763	=back	2394	=back
1764		2395
1765	=head3 cf::object	2396	=head3 cf::object
1766		2397
…		…
1770		2401
1771	=over 4	2402	=over 4
1772		2403
1773	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1774		2405
1775	Returns the inventory of the object _and_ their inventories, recursively.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
1776		2408
1777	=cut	2409	=cut
1778		2410
1779	sub inv_recursive_;	2411	sub inv_recursive_;
1780	sub inv_recursive_ {	2412	sub inv_recursive_ {
…		…
1783		2415
1784	sub inv_recursive {	2416	sub inv_recursive {
1785	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
1786	}	2418	}
1787		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
		2446	}
		2447
1788	package cf;	2448	package cf;
1789		2449
1790	=back	2450	=back
1791		2451
1792	=head3 cf::object::player	2452	=head3 cf::object::player
…		…
1798	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2458	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1799	can be C<undef>. Does the right thing when the player is currently in a	2459	can be C<undef>. Does the right thing when the player is currently in a
1800	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1801		2461
1802	=cut	2462	=cut
		2463
		2464	our $SAY_CHANNEL = {
		2465	id => "say",
		2466	title => "Map",
		2467	reply => "say ",
		2468	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2469	};
		2470
		2471	our $CHAT_CHANNEL = {
		2472	id => "chat",
		2473	title => "Chat",
		2474	reply => "chat ",
		2475	tooltip => "Player chat and shouts, global to the server.",
		2476	};
1803		2477
1804	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1805	# with dialog boxes.	2479	# with dialog boxes.
1806	#TODO: the first argument must go, split into a $npc->reply_to ( method	2480	#TODO: the first argument must go, split into a $npc->reply_to ( method
1807	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1809		2483
1810	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1811		2485
1812	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1813	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1814	} else {	2489	} else {
		2490	my $pl = $self->contr;
		2491
		2492	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2493	my $dialog = $pl->{npc_dialog};
		2494	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2495
		2496	} else {
1815	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1816	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1817	}	2500	}
		2501	}
		2502
		2503	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	=cut
		2506
		2507	sub cf::object::send_msg {
		2508	my $pl = shift->contr
		2509	or return;
		2510	$pl->send_msg (@_);
1818	}	2511	}
1819		2512
1820	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1821		2514
1822	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1835		2528
1836	=item $player_object->enter_link	2529	=item $player_object->enter_link
1837		2530
1838	Freezes the player and moves him/her to a special map (C<{link}>).	2531	Freezes the player and moves him/her to a special map (C<{link}>).
1839		2532
1840	The player should be reasonably safe there for short amounts of time. You	2533	The player should be reasonably safe there for short amounts of time (e.g.
1841	I<MUST> call C<leave_link> as soon as possible, though.	2534	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2535	though, as the palyer cannot control the character while it is on the link
		2536	map.
1842		2537
1843	Will never block.	2538	Will never block.
1844		2539
1845	=item $player_object->leave_link ($map, $x, $y)	2540	=item $player_object->leave_link ($map, $x, $y)
1846		2541
…		…
1869	$self->deactivate_recursive;	2564	$self->deactivate_recursive;
1870		2565
1871	return if UNIVERSAL::isa $self->map, "ext::map_link";	2566	return if UNIVERSAL::isa $self->map, "ext::map_link";
1872		2567
1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1874	if $self->map;	2569	if $self->map && $self->map->{path} ne "{link}";
1875		2570
1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2571	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1877	}	2572	}
1878		2573
1879	sub cf::object::player::leave_link {	2574	sub cf::object::player::leave_link {
1880	my ($self, $map, $x, $y) = @_;	2575	my ($self, $map, $x, $y) = @_;
		2576
		2577	return unless $self->contr->active;
1881		2578
1882	my $link_pos = delete $self->{_link_pos};	2579	my $link_pos = delete $self->{_link_pos};
1883		2580
1884	unless ($map) {	2581	unless ($map) {
1885	# restore original map position	2582	# restore original map position
…		…
1896	($x, $y) = (-1, -1)	2593	($x, $y) = (-1, -1)
1897	unless (defined $x) && (defined $y);	2594	unless (defined $x) && (defined $y);
1898		2595
1899	# use -1 or undef as default coordinates, not 0, 0	2596	# use -1 or undef as default coordinates, not 0, 0
1900	($x, $y) = ($map->enter_x, $map->enter_y)	2597	($x, $y) = ($map->enter_x, $map->enter_y)
1901	if $x <=0 && $y <= 0;	2598	if $x <= 0 && $y <= 0;
1902		2599
1903	$map->load;	2600	$map->load;
1904	$map->load_diag;	2601	$map->load_neighbours;
1905		2602
1906	return unless $self->contr->active;	2603	return unless $self->contr->active;
1907	$self->activate_recursive;
1908		2604
1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2605	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1910	$self->enter_map ($map, $x, $y);	2606	$self->enter_map ($map, $x, $y);
1911	}
1912		2607
1913	cf::player->attach (	2608	# only activate afterwards, to support waiting in hooks
1914	on_logout => sub {	2609	$self->activate_recursive;
1915	my ($pl) = @_;	2610	}
1916		2611
1917	# abort map switching before logout	2612	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1918	if ($pl->ob->{_link_pos}) {
1919	cf::sync_job {
1920	$pl->ob->leave_link
1921	};
1922	}
1923	},
1924	on_login => sub {
1925	my ($pl) = @_;
1926		2613
1927	# try to abort aborted map switching on player login :)	2614	Moves the player to the given map-path and coordinates by first freezing
1928	# should happen only on crashes	2615	her, loading and preparing them map, calling the provided $check callback
1929	if ($pl->ob->{_link_pos}) {	2616	that has to return the map if sucecssful, and then unfreezes the player on
1930	$pl->ob->enter_link;	2617	the new (success) or old (failed) map position. In either case, $done will
1931	(async {	2618	be called at the end of this process.
1932	$pl->ob->reply (undef,
1933	"There was an internal problem at your last logout, "
1934	. "the server will try to bring you to your intended destination in a second.",
1935	cf::NDI_RED);
1936	# we need this sleep as the login has a concurrent enter_exit running
1937	# and this sleep increases chances of the player not ending up in scorn
1938	Coro::Timer::sleep 1;
1939	$pl->ob->leave_link;
1940	})->prio (2);
1941	}
1942	},
1943	);
1944		2619
1945	=item $player_object->goto ($path, $x, $y)	2620	Note that $check will be called with a potentially non-loaded map, so if
		2621	it needs a loaded map it has to call C<< ->load >>.
1946		2622
1947	=cut	2623	=cut
		2624
		2625	our $GOTOGEN;
1948		2626
1949	sub cf::object::player::goto {	2627	sub cf::object::player::goto {
1950	my ($self, $path, $x, $y) = @_;	2628	my ($self, $path, $x, $y, $check, $done) = @_;
		2629
		2630	# do generation counting so two concurrent goto's will be executed in-order
		2631	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1951		2632
1952	$self->enter_link;	2633	$self->enter_link;
1953		2634
1954	(async {	2635	(async {
		2636	$Coro::current->{desc} = "player::goto $path $x $y";
		2637
		2638	# *tag paths override both path and x|y
		2639	if ($path =~ /^\*(.*)$/) {
		2640	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2641	my $ob = $obs[rand @obs];
		2642
		2643	# see if we actually can go there
		2644	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2645	$ob = $obs[rand @obs];
		2646	} else {
		2647	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649	# else put us there anyways for now #d#
		2650
		2651	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2652	} else {
		2653	($path, $x, $y) = (undef, undef, undef);
		2654	}
		2655	}
		2656
1955	my $map = eval {	2657	my $map = eval {
1956	my $map = cf::map::find $path;	2658	my $map = defined $path ? cf::map::find $path : undef;
		2659
		2660	if ($map) {
1957	$map = $map->customise_for ($self) if $map;	2661	$map = $map->customise_for ($self);
		2662	$map = $check->($map) if $check && $map;
		2663	} else {
		2664	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2665	}
		2666
1958	$map	2667	$map
		2668	};
		2669
		2670	if ($@) {
		2671	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2672	LOG llevError | logBacktrace, Carp::longmess $@;
1959	} or	2673	}
1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1961		2674
		2675	if ($gen == $self->{_goto_generation}) {
		2676	delete $self->{_goto_generation};
1962	$self->leave_link ($map, $x, $y);	2677	$self->leave_link ($map, $x, $y);
		2678	}
		2679
		2680	$done->() if $done;
1963	})->prio (1);	2681	})->prio (1);
1964	}	2682	}
1965		2683
1966	=item $player_object->enter_exit ($exit_object)	2684	=item $player_object->enter_exit ($exit_object)
1967		2685
…		…
1987	}	2705	}
1988		2706
1989	sub prepare_random_map {	2707	sub prepare_random_map {
1990	my ($exit) = @_;	2708	my ($exit) = @_;
1991		2709
1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1993
1994	# all this does is basically replace the /! path by	2710	# all this does is basically replace the /! path by
1995	# a new random map path (?random/...) with a seed	2711	# a new random map path (?random/...) with a seed
1996	# that depends on the exit object	2712	# that depends on the exit object
1997		2713
1998	my $rmp = parse_random_map_params $exit->msg;	2714	my $rmp = parse_random_map_params $exit->msg;
…		…
2000	if ($exit->map) {	2716	if ($exit->map) {
2001	$rmp->{region} = $exit->region->name;	2717	$rmp->{region} = $exit->region->name;
2002	$rmp->{origin_map} = $exit->map->path;	2718	$rmp->{origin_map} = $exit->map->path;
2003	$rmp->{origin_x} = $exit->x;	2719	$rmp->{origin_x} = $exit->x;
2004	$rmp->{origin_y} = $exit->y;	2720	$rmp->{origin_y} = $exit->y;
		2721
		2722	$exit->map->touch;
2005	}	2723	}
2006		2724
2007	$rmp->{random_seed} ||= $exit->random_seed;	2725	$rmp->{random_seed} ||= $exit->random_seed;
2008		2726
2009	my $data = cf::to_json $rmp;	2727	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2010	my $md5 = Digest::MD5::md5_hex $data;	2728	my $md5 = Digest::MD5::md5_hex $data;
2011	my $meta = "$RANDOMDIR/$md5.meta";	2729	my $meta = "$RANDOMDIR/$md5.meta";
2012		2730
2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2731	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2014	aio_write $fh, 0, (length $data), $data, 0;	2732	aio_write $fh, 0, (length $data), $data, 0;
2015	undef $fh;	2733	undef $fh;
2016	aio_rename "$meta~", $meta;	2734	aio_rename "$meta~", $meta;
2017		2735
		2736	my $slaying = "?random/$md5";
		2737
		2738	if ($exit->valid) {
2018	$exit->slaying ("?random/$md5");	2739	$exit->slaying ("?random/$md5");
2019	$exit->msg (undef);	2740	$exit->msg (undef);
		2741	}
2020	}	2742	}
2021	}	2743	}
2022		2744
2023	sub cf::object::player::enter_exit {	2745	sub cf::object::player::enter_exit {
2024	my ($self, $exit) = @_;	2746	my ($self, $exit) = @_;
2025		2747
2026	return unless $self->type == cf::PLAYER;	2748	return unless $self->type == cf::PLAYER;
2027		2749
2028	if ($exit->slaying eq "/!") {
2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
2030	# the problem is that $exit might not survive long enough
2031	# so it needs to be done right now, right here
2032	cf::sync_job { prepare_random_map $exit };
2033	}
2034
2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2036	my $hp = $exit->stats->hp;
2037	my $sp = $exit->stats->sp;
2038
2039	$self->enter_link;	2750	$self->enter_link;
2040		2751
2041	(async {	2752	(async {
2042	$self->deactivate_recursive; # just to be sure	2753	$Coro::current->{desc} = "enter_exit";
		2754
2043	unless (eval {	2755	unless (eval {
		2756	$self->deactivate_recursive; # just to be sure
		2757
		2758	# random map handling
		2759	{
		2760	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2761
		2762	prepare_random_map $exit
		2763	if $exit->slaying eq "/!";
		2764	}
		2765
		2766	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2767	my $x = $exit->stats->hp;
		2768	my $y = $exit->stats->sp;
		2769
2044	$self->goto ($slaying, $hp, $sp);	2770	$self->goto ($map, $x, $y);
2045		2771
		2772	# if exit is damned, update players death & WoR home-position
		2773	$self->contr->savebed ($map, $x, $y)
		2774	if $exit->flag (cf::FLAG_DAMNED);
		2775
2046	1;	2776	1
2047	}) {	2777	}) {
2048	$self->message ("Something went wrong deep within the crossfire server. "	2778	$self->message ("Something went wrong deep within the deliantra server. "
2049	. "I'll try to bring you back to the map you were before. "	2779	. "I'll try to bring you back to the map you were before. "
2050	. "Please report this to the dungeon master!",	2780	. "Please report this to the dungeon master!",
2051	cf::NDI_UNIQUE | cf::NDI_RED);	2781	cf::NDI_UNIQUE | cf::NDI_RED);
2052		2782
2053	warn "ERROR in enter_exit: $@";	2783	warn "ERROR in enter_exit: $@";
…		…
2072		2802
2073	utf8::encode $text;	2803	utf8::encode $text;
2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2804	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2075	}	2805	}
2076		2806
		2807	=item $client->send_big_packet ($pkt)
		2808
		2809	Like C<send_packet>, but tries to compress large packets, and fragments
		2810	them as required.
		2811
		2812	=cut
		2813
		2814	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2815
		2816	sub cf::client::send_big_packet {
		2817	my ($self, $pkt) = @_;
		2818
		2819	# try lzf for large packets
		2820	$pkt = "lzf " . Compress::LZF::compress $pkt
		2821	if 1024 <= length $pkt and $self->{can_lzf};
		2822
		2823	# split very large packets
		2824	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2825	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2826	$pkt = "frag";
		2827	}
		2828
		2829	$self->send_packet ($pkt);
		2830	}
		2831
		2832	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2833
		2834	Send a drawinfo or msg packet to the client, formatting the msg for the
		2835	client if neccessary. C<$type> should be a string identifying the type of
		2836	the message, with C<log> being the default. If C<$color> is negative, suppress
		2837	the message unless the client supports the msg packet.
		2838
		2839	=cut
		2840
		2841	# non-persistent channels (usually the info channel)
		2842	our %CHANNEL = (
		2843	"c/motd" => {
		2844	id => "infobox",
		2845	title => "MOTD",
		2846	reply => undef,
		2847	tooltip => "The message of the day",
		2848	},
		2849	"c/identify" => {
		2850	id => "infobox",
		2851	title => "Identify",
		2852	reply => undef,
		2853	tooltip => "Items recently identified",
		2854	},
		2855	"c/examine" => {
		2856	id => "infobox",
		2857	title => "Examine",
		2858	reply => undef,
		2859	tooltip => "Signs and other items you examined",
		2860	},
		2861	"c/shopinfo" => {
		2862	id => "infobox",
		2863	title => "Shop Info",
		2864	reply => undef,
		2865	tooltip => "What your bargaining skill tells you about the shop",
		2866	},
		2867	"c/book" => {
		2868	id => "infobox",
		2869	title => "Book",
		2870	reply => undef,
		2871	tooltip => "The contents of a note or book",
		2872	},
		2873	"c/lookat" => {
		2874	id => "infobox",
		2875	title => "Look",
		2876	reply => undef,
		2877	tooltip => "What you saw there",
		2878	},
		2879	"c/who" => {
		2880	id => "infobox",
		2881	title => "Players",
		2882	reply => undef,
		2883	tooltip => "Shows players who are currently online",
		2884	},
		2885	"c/body" => {
		2886	id => "infobox",
		2887	title => "Body Parts",
		2888	reply => undef,
		2889	tooltip => "Shows which body parts you posess and are available",
		2890	},
		2891	"c/statistics" => {
		2892	id => "infobox",
		2893	title => "Statistics",
		2894	reply => undef,
		2895	tooltip => "Shows your primary statistics",
		2896	},
		2897	"c/skills" => {
		2898	id => "infobox",
		2899	title => "Skills",
		2900	reply => undef,
		2901	tooltip => "Shows your experience per skill and item power",
		2902	},
		2903	"c/shopitems" => {
		2904	id => "infobox",
		2905	title => "Shop Items",
		2906	reply => undef,
		2907	tooltip => "Shows the items currently for sale in this shop",
		2908	},
		2909	"c/resistances" => {
		2910	id => "infobox",
		2911	title => "Resistances",
		2912	reply => undef,
		2913	tooltip => "Shows your resistances",
		2914	},
		2915	"c/pets" => {
		2916	id => "infobox",
		2917	title => "Pets",
		2918	reply => undef,
		2919	tooltip => "Shows information abotu your pets/a specific pet",
		2920	},
		2921	"c/perceiveself" => {
		2922	id => "infobox",
		2923	title => "Perceive Self",
		2924	reply => undef,
		2925	tooltip => "You gained detailed knowledge about yourself",
		2926	},
		2927	"c/uptime" => {
		2928	id => "infobox",
		2929	title => "Uptime",
		2930	reply => undef,
		2931	tooltip => "How long the server has been running since last restart",
		2932	},
		2933	"c/mapinfo" => {
		2934	id => "infobox",
		2935	title => "Map Info",
		2936	reply => undef,
		2937	tooltip => "Information related to the maps",
		2938	},
		2939	"c/party" => {
		2940	id => "party",
		2941	title => "Party",
		2942	reply => "gsay ",
		2943	tooltip => "Messages and chat related to your party",
		2944	},
		2945	"c/death" => {
		2946	id => "death",
		2947	title => "Death",
		2948	reply => undef,
		2949	tooltip => "Reason for and more info about your most recent death",
		2950	},
		2951	"c/say" => $SAY_CHANNEL,
		2952	"c/chat" => $CHAT_CHANNEL,
		2953	);
		2954
		2955	sub cf::client::send_msg {
		2956	my ($self, $channel, $msg, $color, @extra) = @_;
		2957
		2958	$msg = $self->pl->expand_cfpod ($msg)
		2959	unless $color & cf::NDI_VERBATIM;
		2960
		2961	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2962
		2963	# check predefined channels, for the benefit of C
		2964	if ($CHANNEL{$channel}) {
		2965	$channel = $CHANNEL{$channel};
		2966
		2967	$self->ext_msg (channel_info => $channel);
		2968	$channel = $channel->{id};
		2969
		2970	} elsif (ref $channel) {
		2971	# send meta info to client, if not yet sent
		2972	unless (exists $self->{channel}{$channel->{id}}) {
		2973	$self->{channel}{$channel->{id}} = $channel;
		2974	$self->ext_msg (channel_info => $channel);
		2975	}
		2976
		2977	$channel = $channel->{id};
		2978	}
		2979
		2980	return unless @extra || length $msg;
		2981
		2982	# default colour, mask it out
		2983	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2984	if $color & cf::NDI_DEF;
		2985
		2986	my $pkt = "msg "
		2987	. $self->{json_coder}->encode (
		2988	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2989	);
		2990
		2991	$self->send_big_packet ($pkt);
		2992	}
		2993
2077	=item $client->ext_event ($type, %msg)	2994	=item $client->ext_msg ($type, @msg)
2078		2995
2079	Sends an exti event to the client.	2996	Sends an ext event to the client.
2080		2997
2081	=cut	2998	=cut
2082		2999
2083	sub cf::client::ext_event($$%) {	3000	sub cf::client::ext_msg($$@) {
2084	my ($self, $type, %msg) = @_;	3001	my ($self, $type, @msg) = @_;
2085		3002
		3003	if ($self->extcmd == 2) {
		3004	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3005	} elsif ($self->extcmd == 1) { # TODO: remove
2086	$msg{msgtype} = "event_$type";	3006	push @msg, msgtype => "event_$type";
2087	$self->send_packet ("ext " . cf::to_json \%msg);	3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3008	}
		3009	}
		3010
		3011	=item $client->ext_reply ($msgid, @msg)
		3012
		3013	Sends an ext reply to the client.
		3014
		3015	=cut
		3016
		3017	sub cf::client::ext_reply($$@) {
		3018	my ($self, $id, @msg) = @_;
		3019
		3020	if ($self->extcmd == 2) {
		3021	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3022	} elsif ($self->extcmd == 1) {
		3023	#TODO: version 1, remove
		3024	unshift @msg, msgtype => "reply", msgid => $id;
		3025	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3026	}
2088	}	3027	}
2089		3028
2090	=item $success = $client->query ($flags, "text", \&cb)	3029	=item $success = $client->query ($flags, "text", \&cb)
2091		3030
2092	Queues a query to the client, calling the given callback with	3031	Queues a query to the client, calling the given callback with
2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3032	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2094	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3033	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2095		3034
2096	Queries can fail, so check the return code. Or don't, as queries will become	3035	Queries can fail, so check the return code. Or don't, as queries will
2097	reliable at some point in the future.	3036	become reliable at some point in the future.
2098		3037
2099	=cut	3038	=cut
2100		3039
2101	sub cf::client::query {	3040	sub cf::client::query {
2102	my ($self, $flags, $text, $cb) = @_;	3041	my ($self, $flags, $text, $cb) = @_;
…		…
2110	utf8::encode $text;	3049	utf8::encode $text;
2111	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3050	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2112		3051
2113	$self->send_packet ($self->{query_queue}[0][0])	3052	$self->send_packet ($self->{query_queue}[0][0])
2114	if @{ $self->{query_queue} } == 1;	3053	if @{ $self->{query_queue} } == 1;
		3054
		3055	1
2115	}	3056	}
2116		3057
2117	cf::client->attach (	3058	cf::client->attach (
		3059	on_connect => sub {
		3060	my ($ns) = @_;
		3061
		3062	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3063	},
2118	on_reply => sub {	3064	on_reply => sub {
2119	my ($ns, $msg) = @_;	3065	my ($ns, $msg) = @_;
2120		3066
2121	# this weird shuffling is so that direct followup queries	3067	# this weird shuffling is so that direct followup queries
2122	# get handled first	3068	# get handled first
…		…
2134	} else {	3080	} else {
2135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3081	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2136	}	3082	}
2137	}	3083	}
2138	},	3084	},
		3085	on_exticmd => sub {
		3086	my ($ns, $buf) = @_;
		3087
		3088	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3089
		3090	if (ref $msg) {
		3091	my ($type, $reply, @payload) =
		3092	"ARRAY" eq ref $msg
		3093	? @$msg
		3094	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3095
		3096	my @reply;
		3097
		3098	if (my $cb = $EXTICMD{$type}) {
		3099	@reply = $cb->($ns, @payload);
		3100	}
		3101
		3102	$ns->ext_reply ($reply, @reply)
		3103	if $reply;
		3104
		3105	} else {
		3106	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3107	}
		3108
		3109	cf::override;
		3110	},
2139	);	3111	);
2140		3112
2141	=item $client->async (\&cb)	3113	=item $client->async (\&cb)
2142		3114
2143	Create a new coroutine, running the specified callback. The coroutine will	3115	Create a new coroutine, running the specified callback. The coroutine will
…		…
2184	our $safe = new Safe "safe";	3156	our $safe = new Safe "safe";
2185	our $safe_hole = new Safe::Hole;	3157	our $safe_hole = new Safe::Hole;
2186		3158
2187	$SIG{FPE} = 'IGNORE';	3159	$SIG{FPE} = 'IGNORE';
2188		3160
2189	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3161	$safe->permit_only (Opcode::opset qw(
		3162	:base_core :base_mem :base_orig :base_math :base_loop
		3163	grepstart grepwhile mapstart mapwhile
		3164	sort time
		3165	));
2190		3166
2191	# here we export the classes and methods available to script code	3167	# here we export the classes and methods available to script code
2192		3168
2193	=pod	3169	=pod
2194		3170
2195	The following functions and methods are available within a safe environment:	3171	The following functions and methods are available within a safe environment:
2196		3172
2197	cf::object contr pay_amount pay_player map	3173	cf::object
		3174	contr pay_amount pay_player map x y force_find force_add destroy
		3175	insert remove name archname title slaying race decrease split
		3176	value
		3177
2198	cf::object::player player	3178	cf::object::player
2199	cf::player peaceful	3179	player
2200	cf::map trigger	3180
		3181	cf::player
		3182	peaceful
		3183
		3184	cf::map
		3185	trigger
2201		3186
2202	=cut	3187	=cut
2203		3188
2204	for (	3189	for (
2205	["cf::object" => qw(contr pay_amount pay_player map)],	3190	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3191	insert remove inv nrof name archname title slaying race
		3192	decrease split destroy change_exp value msg lore send_msg)],
2206	["cf::object::player" => qw(player)],	3193	["cf::object::player" => qw(player)],
2207	["cf::player" => qw(peaceful)],	3194	["cf::player" => qw(peaceful send_msg)],
2208	["cf::map" => qw(trigger)],	3195	["cf::map" => qw(trigger)],
2209	) {	3196	) {
2210	no strict 'refs';	3197	no strict 'refs';
2211	my ($pkg, @funs) = @$_;	3198	my ($pkg, @funs) = @$_;
2212	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3199	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2230		3217
2231	my $qcode = $code;	3218	my $qcode = $code;
2232	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3219	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2233	$qcode =~ s/\n/\\n/g;	3220	$qcode =~ s/\n/\\n/g;
2234		3221
		3222	%vars = (_dummy => 0) unless %vars;
		3223
		3224	my @res;
2235	local $_;	3225	local $_;
2236	local @safe::cf::_safe_eval_args = values %vars;
2237		3226
2238	my $eval =	3227	my $eval =
2239	"do {\n"	3228	"do {\n"
2240	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3229	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2241	. "#line 0 \"{$qcode}\"\n"	3230	. "#line 0 \"{$qcode}\"\n"
2242	. $code	3231	. $code
2243	. "\n}"	3232	. "\n}"
2244	;	3233	;
2245		3234
		3235	if ($CFG{safe_eval}) {
2246	sub_generation_inc;	3236	sub_generation_inc;
		3237	local @safe::cf::_safe_eval_args = values %vars;
2247	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3238	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2248	sub_generation_inc;	3239	sub_generation_inc;
		3240	} else {
		3241	local @cf::_safe_eval_args = values %vars;
		3242	@res = wantarray ? eval eval : scalar eval $eval;
		3243	}
2249		3244
2250	if ($@) {	3245	if ($@) {
2251	warn "$@";	3246	warn "$@";
2252	warn "while executing safe code '$code'\n";	3247	warn "while executing safe code '$code'\n";
2253	warn "with arguments " . (join " ", %vars) . "\n";	3248	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2272	=cut	3267	=cut
2273		3268
2274	sub register_script_function {	3269	sub register_script_function {
2275	my ($fun, $cb) = @_;	3270	my ($fun, $cb) = @_;
2276		3271
2277	no strict 'refs';	3272	$fun = "safe::$fun" if $CFG{safe_eval};
2278	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3273	*$fun = $safe_hole->wrap ($cb);
2279	}	3274	}
2280		3275
2281	=back	3276	=back
2282		3277
2283	=cut	3278	=cut
2284
2285	#############################################################################
2286
2287	=head2 EXTENSION DATABASE SUPPORT
2288
2289	Crossfire maintains a very simple database for extension use. It can
2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2291	convert to/from binary).
2292
2293	The parameter C<$family> should best start with the name of the extension
2294	using it, it should be unique.
2295
2296	=over 4
2297
2298	=item $value = cf::db_get $family => $key
2299
2300	Returns a single value from the database.
2301
2302	=item cf::db_put $family => $key => $value
2303
2304	Stores the given C<$value> in the family.
2305
2306	=cut
2307
2308	our $DB;
2309
2310	sub db_init {
2311	unless ($DB) {
2312	$DB = BDB::db_create $DB_ENV;
2313
2314	cf::sync_job {
2315	eval {
2316	$DB->set_flags (BDB::CHKSUM);
2317
2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2320	cf::cleanup "db_open(db): $!" if $!;
2321	};
2322	cf::cleanup "db_open(db): $@" if $@;
2323	};
2324	}
2325	}
2326
2327	sub db_get($$) {
2328	my $key = "$_[0]/$_[1]";
2329
2330	cf::sync_job {
2331	BDB::db_get $DB, undef, $key, my $data;
2332
2333	$! ? ()
2334	: $data
2335	}
2336	}
2337
2338	sub db_put($$$) {
2339	BDB::dbreq_pri 4;
2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2341	}
2342
2343	=item cf::cache $id => [$paths...], $processversion => $process
2344
2345	Generic caching function that returns the value of the resource $id,
2346	caching and regenerating as required.
2347
2348	This function can block.
2349
2350	=cut
2351
2352	sub cache {
2353	my ($id, $src, $processversion, $process) = @_;
2354
2355	my $meta =
2356	join "\x00",
2357	$processversion,
2358	map {
2359	aio_stat $_
2360	and Carp::croak "$_: $!";
2361
2362	($_, (stat _)[7,9])
2363	} @$src;
2364
2365	my $dbmeta = db_get cache => "$id/meta";
2366	if ($dbmeta ne $meta) {
2367	# changed, we may need to process
2368
2369	my @data;
2370	my $md5;
2371
2372	for (0 .. $#$src) {
2373	0 <= aio_load $src->[$_], $data[$_]
2374	or Carp::croak "$src->[$_]: $!";
2375	}
2376
2377	# if processing is expensive, check
2378	# checksum first
2379	if (1) {
2380	$md5 =
2381	join "\x00",
2382	$processversion,
2383	map {
2384	Coro::cede;
2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
2386	} 0.. $#$src;
2387
2388
2389	my $dbmd5 = db_get cache => "$id/md5";
2390	if ($dbmd5 eq $md5) {
2391	db_put cache => "$id/meta", $meta;
2392
2393	return db_get cache => "$id/data";
2394	}
2395	}
2396
2397	my $t1 = Time::HiRes::time;
2398	my $data = $process->(\@data);
2399	my $t2 = Time::HiRes::time;
2400
2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2402
2403	db_put cache => "$id/data", $data;
2404	db_put cache => "$id/md5" , $md5;
2405	db_put cache => "$id/meta", $meta;
2406
2407	return $data;
2408	}
2409
2410	db_get cache => "$id/data"
2411	}
2412
2413	=item fork_call { }, $args
2414
2415	Executes the given code block with the given arguments in a seperate
2416	process, returning the results. Everything must be serialisable with
2417	Coro::Storable. May, of course, block. Note that the executed sub may
2418	never block itself or use any form of Event handling.
2419
2420	=cut
2421
2422	sub fork_call(&@) {
2423	my ($cb, @args) = @_;
2424
2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2426	# or die "socketpair: $!";
2427	pipe my $fh1, my $fh2
2428	or die "pipe: $!";
2429
2430	if (my $pid = fork) {
2431	close $fh2;
2432
2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2434	$res = Coro::Storable::thaw $res;
2435
2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2437
2438	die $$res unless "ARRAY" eq ref $res;
2439
2440	return wantarray ? @$res : $res->[-1];
2441	} else {
2442	local $SIG{__WARN__};
2443	eval {
2444	local $SIG{__DIE__};
2445	close $fh1;
2446
2447	my @res = eval { $cb->(@args) };
2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2449	};
2450
2451	warn $@ if $@;
2452	_exit 0;
2453	}
2454	}
2455
2456
2457		3279
2458	#############################################################################	3280	#############################################################################
2459	# the server's init and main functions	3281	# the server's init and main functions
2460		3282
2461	sub load_facedata($) {	3283	sub load_facedata($) {
2462	my ($path) = @_;	3284	my ($path) = @_;
		3285
		3286	# HACK to clear player env face cache, we need some signal framework
		3287	# for this (global event?)
		3288	%ext::player_env::MUSIC_FACE_CACHE = ();
		3289
		3290	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2463		3291
2464	warn "loading facedata from $path\n";	3292	warn "loading facedata from $path\n";
2465		3293
2466	my $facedata;	3294	my $facedata;
2467	0 < aio_load $path, $facedata	3295	0 < aio_load $path, $facedata
…		…
2470	$facedata = Coro::Storable::thaw $facedata;	3298	$facedata = Coro::Storable::thaw $facedata;
2471		3299
2472	$facedata->{version} == 2	3300	$facedata->{version} == 2
2473	or cf::cleanup "$path: version mismatch, cannot proceed.";	3301	or cf::cleanup "$path: version mismatch, cannot proceed.";
2474		3302
		3303	# patch in the exptable
		3304	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3305	$facedata->{resource}{"res/exp_table"} = {
		3306	type => FT_RSRC,
		3307	data => $exp_table,
		3308	hash => (Digest::MD5::md5 $exp_table),
		3309	};
		3310	cf::cede_to_tick;
		3311
2475	{	3312	{
2476	my $faces = $facedata->{faceinfo};	3313	my $faces = $facedata->{faceinfo};
2477		3314
2478	while (my ($face, $info) = each %$faces) {	3315	while (my ($face, $info) = each %$faces) {
2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3316	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3317
2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3318	cf::face::set_visibility $idx, $info->{visibility};
		3319	cf::face::set_magicmap $idx, $info->{magicmap};
2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3320	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3321	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2483	Coro::cede;	3322
		3323	cf::cede_to_tick;
2484	}	3324	}
2485		3325
2486	while (my ($face, $info) = each %$faces) {	3326	while (my ($face, $info) = each %$faces) {
2487	next unless $info->{smooth};	3327	next unless $info->{smooth};
		3328
2488	my $idx = cf::face::find $face	3329	my $idx = cf::face::find $face
2489	or next;	3330	or next;
		3331
2490	if (my $smooth = cf::face::find $info->{smooth}) {	3332	if (my $smooth = cf::face::find $info->{smooth}) {
		3333	cf::face::set_smooth $idx, $smooth;
2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3334	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2492	} else {	3335	} else {
2493	warn "smooth face '$info->{smooth}' not found for face '$face'";	3336	warn "smooth face '$info->{smooth}' not found for face '$face'";
2494	}	3337	}
2495	Coro::cede;	3338
		3339	cf::cede_to_tick;
2496	}	3340	}
2497	}	3341	}
2498		3342
2499	{	3343	{
2500	my $anims = $facedata->{animinfo};	3344	my $anims = $facedata->{animinfo};
2501		3345
2502	while (my ($anim, $info) = each %$anims) {	3346	while (my ($anim, $info) = each %$anims) {
2503	cf::anim::set $anim, $info->{frames}, $info->{facings};	3347	cf::anim::set $anim, $info->{frames}, $info->{facings};
2504	Coro::cede;	3348	cf::cede_to_tick;
2505	}	3349	}
2506		3350
2507	cf::anim::invalidate_all; # d'oh	3351	cf::anim::invalidate_all; # d'oh
2508	}	3352	}
2509		3353
		3354	{
		3355	my $res = $facedata->{resource};
		3356
		3357	while (my ($name, $info) = each %$res) {
		3358	if (defined $info->{type}) {
		3359	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3360
		3361	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3362	cf::face::set_type $idx, $info->{type};
		3363	} else {
		3364	$RESOURCE{$name} = $info;
		3365	}
		3366
		3367	cf::cede_to_tick;
		3368	}
		3369	}
		3370
		3371	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3372
2510	1	3373	1
2511	}	3374	}
2512		3375
		3376	cf::global->attach (on_resource_update => sub {
		3377	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3378	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3379
		3380	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3381	my $sound = $soundconf->{compat}[$_]
		3382	or next;
		3383
		3384	my $face = cf::face::find "sound/$sound->[1]";
		3385	cf::sound::set $sound->[0] => $face;
		3386	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3387	}
		3388
		3389	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3390	my $face = cf::face::find "sound/$v";
		3391	cf::sound::set $k => $face;
		3392	}
		3393	}
		3394	});
		3395
		3396	register_exticmd fx_want => sub {
		3397	my ($ns, $want) = @_;
		3398
		3399	while (my ($k, $v) = each %$want) {
		3400	$ns->fx_want ($k, $v);
		3401	}
		3402	};
		3403
		3404	sub load_resource_file($) {
		3405	my $guard = lock_acquire "load_resource_file";
		3406
		3407	my $status = load_resource_file_ $_[0];
		3408	get_slot 0.1, 100;
		3409	cf::arch::commit_load;
		3410
		3411	$status
		3412	}
		3413
2513	sub reload_regions {	3414	sub reload_regions {
		3415	# HACK to clear player env face cache, we need some signal framework
		3416	# for this (global event?)
		3417	%ext::player_env::MUSIC_FACE_CACHE = ();
		3418
2514	load_resource_file "$MAPDIR/regions"	3419	load_resource_file "$MAPDIR/regions"
2515	or die "unable to load regions file\n";	3420	or die "unable to load regions file\n";
		3421
		3422	for (cf::region::list) {
		3423	$_->{match} = qr/$_->{match}/
		3424	if exists $_->{match};
		3425	}
2516	}	3426	}
2517		3427
2518	sub reload_facedata {	3428	sub reload_facedata {
2519	load_facedata "$DATADIR/facedata"	3429	load_facedata "$DATADIR/facedata"
2520	or die "unable to load facedata\n";	3430	or die "unable to load facedata\n";
…		…
2531	}	3441	}
2532		3442
2533	sub reload_resources {	3443	sub reload_resources {
2534	warn "reloading resource files...\n";	3444	warn "reloading resource files...\n";
2535		3445
2536	reload_regions;
2537	reload_facedata;	3446	reload_facedata;
2538	reload_archetypes;	3447	reload_archetypes;
		3448	reload_regions;
2539	reload_treasures;	3449	reload_treasures;
2540		3450
2541	warn "finished reloading resource files\n";	3451	warn "finished reloading resource files\n";
2542	}	3452	}
2543		3453
2544	sub init {	3454	sub reload_config {
2545	reload_resources;	3455	warn "reloading config file...\n";
2546	}
2547		3456
2548	sub cfg_load {
2549	open my $fh, "<:utf8", "$CONFDIR/config"	3457	open my $fh, "<:utf8", "$CONFDIR/config"
2550	or return;	3458	or return;
2551		3459
2552	local $/;	3460	local $/;
2553	*CFG = YAML::Syck::Load <$fh>;	3461	*CFG = YAML::XS::Load scalar <$fh>;
2554		3462
2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3463	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2556		3464
2557	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3465	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2558	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3466	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2562	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3470	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2563	and die "WARNING: m(un)lockall failed: $!\n";	3471	and die "WARNING: m(un)lockall failed: $!\n";
2564	};	3472	};
2565	warn $@ if $@;	3473	warn $@ if $@;
2566	}	3474	}
		3475
		3476	warn "finished reloading resource files\n";
		3477	}
		3478
		3479	sub pidfile() {
		3480	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3481	or die "$PIDFILE: $!";
		3482	flock $fh, &Fcntl::LOCK_EX
		3483	or die "$PIDFILE: flock: $!";
		3484	$fh
		3485	}
		3486
		3487	# make sure only one server instance is running at any one time
		3488	sub atomic {
		3489	my $fh = pidfile;
		3490
		3491	my $pid = <$fh>;
		3492	kill 9, $pid if $pid > 0;
		3493
		3494	seek $fh, 0, 0;
		3495	print $fh $$;
		3496	}
		3497
		3498	sub main_loop {
		3499	warn "EV::loop starting\n";
		3500	if (1) {
		3501	EV::loop;
		3502	}
		3503	warn "EV::loop returned\n";
		3504	goto &main_loop unless $REALLY_UNLOOP;
2567	}	3505	}
2568		3506
2569	sub main {	3507	sub main {
		3508	cf::init_globals; # initialise logging
		3509
		3510	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3511	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3512	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3513	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3514
		3515	cf::init_experience;
		3516	cf::init_anim;
		3517	cf::init_attackmess;
		3518	cf::init_dynamic;
		3519
		3520	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3521
2570	# we must not ever block the main coroutine	3522	# we must not ever block the main coroutine
2571	local $Coro::idle = sub {	3523	local $Coro::idle = sub {
2572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3524	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2573	(async {	3525	(async {
2574	Event::one_event;	3526	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3527	EV::loop EV::LOOP_ONESHOT;
2575	})->prio (Coro::PRIO_MAX);	3528	})->prio (Coro::PRIO_MAX);
2576	};	3529	};
2577		3530
2578	cfg_load;	3531	evthread_start IO::AIO::poll_fileno;
		3532
		3533	cf::sync_job {
		3534	cf::load_settings;
		3535	cf::load_materials;
		3536
		3537	reload_resources;
		3538	reload_config;
2579	db_init;	3539	db_init;
		3540
		3541	cf::init_uuid;
		3542	cf::init_signals;
		3543	cf::init_commands;
		3544	cf::init_skills;
		3545
		3546	cf::init_beforeplay;
		3547
		3548	atomic;
		3549
2580	load_extensions;	3550	load_extensions;
2581		3551
2582	$TICK_WATCHER->start;	3552	utime time, time, $RUNTIMEFILE;
2583	Event::loop;	3553
		3554	# no (long-running) fork's whatsoever before this point(!)
		3555	use POSIX ();
		3556	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3557
		3558	(pop @POST_INIT)->(0) while @POST_INIT;
		3559	};
		3560
		3561	main_loop;
2584	}	3562	}
2585		3563
2586	#############################################################################	3564	#############################################################################
2587	# initialisation and cleanup	3565	# initialisation and cleanup
2588		3566
2589	# install some emergency cleanup handlers	3567	# install some emergency cleanup handlers
2590	BEGIN {	3568	BEGIN {
		3569	our %SIGWATCHER = ();
2591	for my $signal (qw(INT HUP TERM)) {	3570	for my $signal (qw(INT HUP TERM)) {
2592	Event->signal (	3571	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2593	reentrant => 0,
2594	data => WF_AUTOCANCEL,
2595	signal => $signal,
2596	prio => 0,
2597	cb => sub {
2598	cf::cleanup "SIG$signal";	3572	cf::cleanup "SIG$signal";
2599	},
2600	);	3573	};
		3574	}
		3575	}
		3576
		3577	sub write_runtime_sync {
		3578	my $t0 = EV::time;
		3579
		3580	# first touch the runtime file to show we are still running:
		3581	# the fsync below can take a very very long time.
		3582
		3583	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3584
		3585	my $guard = cf::lock_acquire "write_runtime";
		3586
		3587	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3588	or return;
		3589
		3590	my $value = $cf::RUNTIME + 90 + 10;
		3591	# 10 is the runtime save interval, for a monotonic clock
		3592	# 60 allows for the watchdog to kill the server.
		3593
		3594	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3595	and return;
		3596
		3597	# always fsync - this file is important
		3598	aio_fsync $fh
		3599	and return;
		3600
		3601	# touch it again to show we are up-to-date
		3602	aio_utime $fh, undef, undef;
		3603
		3604	close $fh
		3605	or return;
		3606
		3607	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3608	and return;
		3609
		3610	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3611
2601	}	3612	1
		3613	}
		3614
		3615	our $uuid_lock;
		3616	our $uuid_skip;
		3617
		3618	sub write_uuid_sync($) {
		3619	$uuid_skip ||= $_[0];
		3620
		3621	return if $uuid_lock;
		3622	local $uuid_lock = 1;
		3623
		3624	my $uuid = "$LOCALDIR/uuid";
		3625
		3626	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3627	or return;
		3628
		3629	my $value = uuid_seq uuid_cur;
		3630
		3631	unless ($value) {
		3632	warn "cowardly refusing to write zero uuid value!\n";
		3633	return;
		3634	}
		3635
		3636	my $value = uuid_str $value + $uuid_skip;
		3637	$uuid_skip = 0;
		3638
		3639	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3640	and return;
		3641
		3642	# always fsync - this file is important
		3643	aio_fsync $fh
		3644	and return;
		3645
		3646	close $fh
		3647	or return;
		3648
		3649	aio_rename "$uuid~", $uuid
		3650	and return;
		3651
		3652	warn "uuid file written ($value).\n";
		3653
		3654	1
		3655
		3656	}
		3657
		3658	sub write_uuid($$) {
		3659	my ($skip, $sync) = @_;
		3660
		3661	$sync ? write_uuid_sync $skip
		3662	: async { write_uuid_sync $skip };
2602	}	3663	}
2603		3664
2604	sub emergency_save() {	3665	sub emergency_save() {
2605	my $freeze_guard = cf::freeze_mainloop;	3666	my $freeze_guard = cf::freeze_mainloop;
2606		3667
2607	warn "enter emergency perl save\n";	3668	warn "emergency_perl_save: enter\n";
2608		3669
2609	cf::sync_job {	3670	cf::sync_job {
		3671	# this is a trade-off: we want to be very quick here, so
		3672	# save all maps without fsync, and later call a global sync
		3673	# (which in turn might be very very slow)
		3674	local $USE_FSYNC = 0;
		3675
2610	# use a peculiar iteration method to avoid tripping on perl	3676	# use a peculiar iteration method to avoid tripping on perl
2611	# refcount bugs in for. also avoids problems with players	3677	# refcount bugs in for. also avoids problems with players
2612	# and maps saved/destroyed asynchronously.	3678	# and maps saved/destroyed asynchronously.
2613	warn "begin emergency player save\n";	3679	warn "emergency_perl_save: begin player save\n";
2614	for my $login (keys %cf::PLAYER) {	3680	for my $login (keys %cf::PLAYER) {
2615	my $pl = $cf::PLAYER{$login} or next;	3681	my $pl = $cf::PLAYER{$login} or next;
2616	$pl->valid or next;	3682	$pl->valid or next;
		3683	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2617	$pl->save;	3684	$pl->save;
2618	}	3685	}
2619	warn "end emergency player save\n";	3686	warn "emergency_perl_save: end player save\n";
2620		3687
2621	warn "begin emergency map save\n";	3688	warn "emergency_perl_save: begin map save\n";
2622	for my $path (keys %cf::MAP) {	3689	for my $path (keys %cf::MAP) {
2623	my $map = $cf::MAP{$path} or next;	3690	my $map = $cf::MAP{$path} or next;
2624	$map->valid or next;	3691	$map->valid or next;
2625	$map->save;	3692	$map->save;
2626	}	3693	}
2627	warn "end emergency map save\n";	3694	warn "emergency_perl_save: end map save\n";
2628		3695
2629	warn "begin emergency database checkpoint\n";	3696	warn "emergency_perl_save: begin database checkpoint\n";
2630	BDB::db_env_txn_checkpoint $DB_ENV;	3697	BDB::db_env_txn_checkpoint $DB_ENV;
2631	warn "end emergency database checkpoint\n";	3698	warn "emergency_perl_save: end database checkpoint\n";
		3699
		3700	warn "emergency_perl_save: begin write uuid\n";
		3701	write_uuid_sync 1;
		3702	warn "emergency_perl_save: end write uuid\n";
2632	};	3703	};
2633		3704
		3705	warn "emergency_perl_save: starting sync()\n";
		3706	IO::AIO::aio_sync sub {
		3707	warn "emergency_perl_save: finished sync()\n";
		3708	};
		3709
2634	warn "leave emergency perl save\n";	3710	warn "emergency_perl_save: leave\n";
2635	}	3711	}
2636		3712
2637	sub post_cleanup {	3713	sub post_cleanup {
2638	my ($make_core) = @_;	3714	my ($make_core) = @_;
2639		3715
2640	warn Carp::longmess "post_cleanup backtrace"	3716	warn Carp::longmess "post_cleanup backtrace"
2641	if $make_core;	3717	if $make_core;
		3718
		3719	my $fh = pidfile;
		3720	unlink $PIDFILE if <$fh> == $$;
		3721	}
		3722
		3723	# a safer delete_package, copied from Symbol
		3724	sub clear_package($) {
		3725	my $pkg = shift;
		3726
		3727	# expand to full symbol table name if needed
		3728	unless ($pkg =~ /^main::.*::$/) {
		3729	$pkg = "main$pkg" if $pkg =~ /^::/;
		3730	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3731	$pkg .= '::' unless $pkg =~ /::$/;
		3732	}
		3733
		3734	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3735	my $stem_symtab = *{$stem}{HASH};
		3736
		3737	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3738	or return;
		3739
		3740	# clear all symbols
		3741	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3742	for my $name (keys %$leaf_symtab) {
		3743	_gv_clear *{"$pkg$name"};
		3744	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3745	}
		3746	warn "cleared package $pkg\n";#d#
2642	}	3747	}
2643		3748
2644	sub do_reload_perl() {	3749	sub do_reload_perl() {
2645	# can/must only be called in main	3750	# can/must only be called in main
2646	if ($Coro::current != $Coro::main) {	3751	if ($Coro::current != $Coro::main) {
2647	warn "can only reload from main coroutine";	3752	warn "can only reload from main coroutine";
2648	return;	3753	return;
2649	}	3754	}
2650		3755
		3756	return if $RELOAD++;
		3757
		3758	my $t1 = EV::time;
		3759
		3760	while ($RELOAD) {
2651	warn "reloading...";	3761	warn "reloading...";
2652		3762
2653	warn "entering sync_job";	3763	warn "entering sync_job";
2654		3764
2655	cf::sync_job {	3765	cf::sync_job {
2656	cf::write_runtime; # external watchdog should not bark	3766	cf::write_runtime_sync; # external watchdog should not bark
2657	cf::emergency_save;	3767	cf::emergency_save;
2658	cf::write_runtime; # external watchdog should not bark	3768	cf::write_runtime_sync; # external watchdog should not bark
2659		3769
2660	warn "syncing database to disk";	3770	warn "syncing database to disk";
2661	BDB::db_env_txn_checkpoint $DB_ENV;	3771	BDB::db_env_txn_checkpoint $DB_ENV;
2662		3772
2663	# if anything goes wrong in here, we should simply crash as we already saved	3773	# if anything goes wrong in here, we should simply crash as we already saved
2664		3774
2665	warn "cancelling all WF_AUTOCANCEL watchers";
2666	for (Event::all_watchers) {
2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2668	}
2669
2670	warn "flushing outstanding aio requests";	3775	warn "flushing outstanding aio requests";
2671	for (;;) {
2672	BDB::flush;
2673	IO::AIO::flush;
2674	Coro::cede;
2675	last unless IO::AIO::nreqs || BDB::nreqs;	3776	while (IO::AIO::nreqs || BDB::nreqs) {
2676	warn "iterate...";	3777	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2677	}
2678
2679	++$RELOAD;
2680
2681	warn "cancelling all extension coros";
2682	$_->cancel for values %EXT_CORO;
2683	%EXT_CORO = ();
2684
2685	warn "removing commands";
2686	%COMMAND = ();
2687
2688	warn "removing ext commands";
2689	%EXTCMD = ();
2690
2691	warn "unloading/nuking all extensions";
2692	for my $pkg (@EXTS) {
2693	warn "... unloading $pkg";
2694
2695	if (my $cb = $pkg->can ("unload")) {
2696	eval {
2697	$cb->($pkg);
2698	1
2699	} or warn "$pkg unloaded, but with errors: $@";
2700	}	3778	}
2701		3779
2702	warn "... nuking $pkg";	3780	warn "cancelling all extension coros";
2703	Symbol::delete_package $pkg;	3781	$_->cancel for values %EXT_CORO;
2704	}	3782	%EXT_CORO = ();
2705		3783
2706	warn "unloading all perl modules loaded from $LIBDIR";	3784	warn "removing commands";
2707	while (my ($k, $v) = each %INC) {	3785	%COMMAND = ();
2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2709		3786
		3787	warn "removing ext/exti commands";
		3788	%EXTCMD = ();
		3789	%EXTICMD = ();
		3790
		3791	warn "unloading/nuking all extensions";
		3792	for my $pkg (@EXTS) {
2710	warn "... unloading $k";	3793	warn "... unloading $pkg";
2711	delete $INC{$k};
2712		3794
2713	$k =~ s/\.pm$//;
2714	$k =~ s/\//::/g;
2715
2716	if (my $cb = $k->can ("unload_module")) {	3795	if (my $cb = $pkg->can ("unload")) {
		3796	eval {
2717	$cb->();	3797	$cb->($pkg);
		3798	1
		3799	} or warn "$pkg unloaded, but with errors: $@";
		3800	}
		3801
		3802	warn "... clearing $pkg";
		3803	clear_package $pkg;
2718	}	3804	}
2719		3805
2720	Symbol::delete_package $k;	3806	warn "unloading all perl modules loaded from $LIBDIR";
		3807	while (my ($k, $v) = each %INC) {
		3808	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3809
		3810	warn "... unloading $k";
		3811	delete $INC{$k};
		3812
		3813	$k =~ s/\.pm$//;
		3814	$k =~ s/\//::/g;
		3815
		3816	if (my $cb = $k->can ("unload_module")) {
		3817	$cb->();
		3818	}
		3819
		3820	clear_package $k;
2721	}	3821	}
2722		3822
2723	warn "getting rid of safe::, as good as possible";	3823	warn "getting rid of safe::, as good as possible";
2724	Symbol::delete_package "safe::$_"	3824	clear_package "safe::$_"
2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3825	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2726		3826
2727	warn "unloading cf.pm \"a bit\"";	3827	warn "unloading cf.pm \"a bit\"";
2728	delete $INC{"cf.pm"};	3828	delete $INC{"cf.pm"};
2729	delete $INC{"cf/pod.pm"};	3829	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2730		3830
2731	# don't, removes xs symbols, too,	3831	# don't, removes xs symbols, too,
2732	# and global variables created in xs	3832	# and global variables created in xs
2733	#Symbol::delete_package __PACKAGE__;	3833	#clear_package __PACKAGE__;
2734		3834
2735	warn "unload completed, starting to reload now";	3835	warn "unload completed, starting to reload now";
2736		3836
2737	warn "reloading cf.pm";	3837	warn "reloading cf.pm";
2738	require cf;	3838	require cf;
2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3839	cf::_connect_to_perl_1;
2740		3840
2741	warn "loading config and database again";	3841	warn "loading config and database again";
2742	cf::cfg_load;	3842	cf::reload_config;
2743		3843
2744	warn "loading extensions";	3844	warn "loading extensions";
2745	cf::load_extensions;	3845	cf::load_extensions;
2746		3846
		3847	if ($REATTACH_ON_RELOAD) {
2747	warn "reattaching attachments to objects/players";	3848	warn "reattaching attachments to objects/players";
2748	_global_reattach; # objects, sockets	3849	_global_reattach; # objects, sockets
2749	warn "reattaching attachments to maps";	3850	warn "reattaching attachments to maps";
2750	reattach $_ for values %MAP;	3851	reattach $_ for values %MAP;
2751	warn "reattaching attachments to players";	3852	warn "reattaching attachments to players";
2752	reattach $_ for values %PLAYER;	3853	reattach $_ for values %PLAYER;
		3854	}
2753		3855
		3856	warn "running post_init jobs";
		3857	(pop @POST_INIT)->(1) while @POST_INIT;
		3858
2754	warn "leaving sync_job";	3859	warn "leaving sync_job";
2755		3860
2756	1	3861	1
2757	} or do {	3862	} or do {
2758	warn $@;	3863	warn $@;
2759	warn "error while reloading, exiting.";	3864	cf::cleanup "error while reloading, exiting.";
2760	exit 1;
2761	};	3865	};
2762		3866
2763	warn "reloaded";	3867	warn "reloaded";
		3868	--$RELOAD;
		3869	}
		3870
		3871	$t1 = EV::time - $t1;
		3872	warn "reload completed in ${t1}s\n";
2764	};	3873	};
2765		3874
2766	our $RELOAD_WATCHER; # used only during reload	3875	our $RELOAD_WATCHER; # used only during reload
2767		3876
2768	sub reload_perl() {	3877	sub reload_perl() {
2769	# doing reload synchronously and two reloads happen back-to-back,	3878	# doing reload synchronously and two reloads happen back-to-back,
2770	# coro crashes during coro_state_free->destroy here.	3879	# coro crashes during coro_state_free->destroy here.
2771		3880
2772	$RELOAD_WATCHER ||= Event->timer (	3881	$RELOAD_WATCHER ||= cf::async {
2773	reentrant => 0,	3882	Coro::AIO::aio_wait cache_extensions;
2774	after => 0,	3883
2775	data => WF_AUTOCANCEL,	3884	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2776	cb => sub {
2777	do_reload_perl;	3885	do_reload_perl;
2778	undef $RELOAD_WATCHER;	3886	undef $RELOAD_WATCHER;
2779	},	3887	};
2780	);	3888	};
2781	}	3889	}
2782		3890
2783	register_command "reload" => sub {	3891	register_command "reload" => sub {
2784	my ($who, $arg) = @_;	3892	my ($who, $arg) = @_;
2785		3893
2786	if ($who->flag (FLAG_WIZ)) {	3894	if ($who->flag (FLAG_WIZ)) {
2787	$who->message ("reloading server.");	3895	$who->message ("reloading server.");
		3896	async {
		3897	$Coro::current->{desc} = "perl_reload";
2788	async { reload_perl };	3898	reload_perl;
		3899	};
2789	}	3900	}
2790	};	3901	};
2791		3902
2792	unshift @INC, $LIBDIR;	3903	unshift @INC, $LIBDIR;
2793		3904
…		…
2795		3906
2796	our @WAIT_FOR_TICK;	3907	our @WAIT_FOR_TICK;
2797	our @WAIT_FOR_TICK_BEGIN;	3908	our @WAIT_FOR_TICK_BEGIN;
2798		3909
2799	sub wait_for_tick {	3910	sub wait_for_tick {
2800	return unless $TICK_WATCHER->is_active;
2801	return if $Coro::current == $Coro::main;	3911	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2802		3912
2803	my $signal = new Coro::Signal;	3913	my $signal = new Coro::Signal;
2804	push @WAIT_FOR_TICK, $signal;	3914	push @WAIT_FOR_TICK, $signal;
2805	$signal->wait;	3915	$signal->wait;
2806	}	3916	}
2807		3917
2808	sub wait_for_tick_begin {	3918	sub wait_for_tick_begin {
2809	return unless $TICK_WATCHER->is_active;
2810	return if $Coro::current == $Coro::main;	3919	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2811		3920
2812	my $signal = new Coro::Signal;	3921	my $signal = new Coro::Signal;
2813	push @WAIT_FOR_TICK_BEGIN, $signal;	3922	push @WAIT_FOR_TICK_BEGIN, $signal;
2814	$signal->wait;	3923	$signal->wait;
2815	}	3924	}
2816		3925
2817	$TICK_WATCHER = Event->timer (	3926	sub tick {
2818	reentrant => 0,
2819	parked => 1,
2820	prio => 0,
2821	at => $NEXT_TICK || $TICK,
2822	data => WF_AUTOCANCEL,
2823	cb => sub {
2824	if ($Coro::current != $Coro::main) {	3927	if ($Coro::current != $Coro::main) {
2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3928	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2826	unless ++$bug_warning > 10;	3929	unless ++$bug_warning > 10;
2827	return;	3930	return;
2828	}	3931	}
2829		3932
2830	$NOW = Event::time;
2831
2832	cf::server_tick; # one server iteration	3933	cf::server_tick; # one server iteration
2833		3934
2834	$RUNTIME += $TICK;	3935	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2835	$NEXT_TICK += $TICK;
2836		3936
2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3937	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2838	$NEXT_RUNTIME_WRITE = $NOW + 10;	3938	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2839	Coro::async_pool {	3939	Coro::async_pool {
		3940	$Coro::current->{desc} = "runtime saver";
2840	write_runtime	3941	write_runtime_sync
2841	or warn "ERROR: unable to write runtime file: $!";	3942	or warn "ERROR: unable to write runtime file: $!";
2842	};
2843	}	3943	};
		3944	}
2844		3945
2845	# my $AFTER = Event::time;
2846	# warn $AFTER - $NOW;#d#
2847
2848	# if we are delayed by four ticks or more, skip them all
2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2850
2851	$TICK_WATCHER->at ($NEXT_TICK);
2852	$TICK_WATCHER->start;
2853
2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3946	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2855	$sig->send;	3947	$sig->send;
2856	}	3948	}
2857	while (my $sig = shift @WAIT_FOR_TICK) {	3949	while (my $sig = shift @WAIT_FOR_TICK) {
2858	$sig->send;	3950	$sig->send;
2859	}
2860
2861	_post_tick;
2862	},	3951	}
2863	);	3952
		3953	$LOAD = ($NOW - $TICK_START) / $TICK;
		3954	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3955
		3956	if (0) {
		3957	if ($NEXT_TICK) {
		3958	my $jitter = $TICK_START - $NEXT_TICK;
		3959	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3960	warn "jitter $JITTER\n";#d#
		3961	}
		3962	}
		3963	}
2864		3964
2865	{	3965	{
2866	BDB::max_poll_time $TICK * 0.1;	3966	# configure BDB
2867	$BDB_POLL_WATCHER = Event->io (	3967
2868	reentrant => 0,
2869	fd => BDB::poll_fileno,
2870	poll => 'r',
2871	prio => 0,
2872	data => WF_AUTOCANCEL,
2873	cb => \&BDB::poll_cb,
2874	);
2875	BDB::min_parallel 8;	3968	BDB::min_parallel 16;
2876		3969	BDB::max_poll_reqs $TICK * 0.1;
2877	BDB::set_sync_prepare {	3970	$AnyEvent::BDB::WATCHER->priority (1);
2878	my $status;
2879	my $current = $Coro::current;
2880	(
2881	sub {
2882	$status = $!;
2883	$current->ready; undef $current;
2884	},
2885	sub {
2886	Coro::schedule while defined $current;
2887	$! = $status;
2888	},
2889	)
2890	};
2891		3971
2892	unless ($DB_ENV) {	3972	unless ($DB_ENV) {
2893	$DB_ENV = BDB::db_env_create;	3973	$DB_ENV = BDB::db_env_create;
		3974	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3975	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3976	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3977	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3978	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2894		3979
2895	cf::sync_job {	3980	cf::sync_job {
2896	eval {	3981	eval {
2897	BDB::db_env_open	3982	BDB::db_env_open
2898	$DB_ENV,	3983	$DB_ENV,
…		…
2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3985	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3986	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2902	0666;	3987	0666;
2903		3988
2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3989	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2905
2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2907	$DB_ENV->set_lk_detect;
2908	};	3990	};
2909		3991
2910	cf::cleanup "db_env_open(db): $@" if $@;	3992	cf::cleanup "db_env_open(db): $@" if $@;
2911	};	3993	};
2912	}	3994	}
		3995
		3996	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3997	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3998	};
		3999	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4000	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4001	};
		4002	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4003	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4004	};
2913	}	4005	}
2914		4006
2915	{	4007	{
		4008	# configure IO::AIO
		4009
2916	IO::AIO::min_parallel 8;	4010	IO::AIO::min_parallel 8;
2917
2918	undef $Coro::AIO::WATCHER;
2919	IO::AIO::max_poll_time $TICK * 0.1;	4011	IO::AIO::max_poll_time $TICK * 0.1;
2920	$AIO_POLL_WATCHER = Event->io (	4012	undef $AnyEvent::AIO::WATCHER;
2921	reentrant => 0,	4013	}
2922	data => WF_AUTOCANCEL,	4014
2923	fd => IO::AIO::poll_fileno,	4015	my $_log_backtrace;
2924	poll => 'r',	4016
2925	prio => 6,	4017	sub _log_backtrace {
2926	cb => \&IO::AIO::poll_cb,	4018	my ($msg, @addr) = @_;
2927	);	4019
		4020	$msg =~ s/\n//;
		4021
		4022	# limit the # of concurrent backtraces
		4023	if ($_log_backtrace < 2) {
		4024	++$_log_backtrace;
		4025	my $perl_bt = Carp::longmess $msg;
		4026	async {
		4027	$Coro::current->{desc} = "abt $msg";
		4028
		4029	my @bt = fork_call {
		4030	@addr = map { sprintf "%x", $_ } @addr;
		4031	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4032	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4033	or die "addr2line: $!";
		4034
		4035	my @funcs;
		4036	my @res = <$fh>;
		4037	chomp for @res;
		4038	while (@res) {
		4039	my ($func, $line) = splice @res, 0, 2, ();
		4040	push @funcs, "[$func] $line";
		4041	}
		4042
		4043	@funcs
		4044	};
		4045
		4046	LOG llevInfo, "[ABT] $perl_bt\n";
		4047	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4048	LOG llevInfo, "[ABT] $_\n" for @bt;
		4049	--$_log_backtrace;
		4050	};
		4051	} else {
		4052	LOG llevInfo, "[ABT] $msg\n";
		4053	LOG llevInfo, "[ABT] [suppressed]\n";
		4054	}
2928	}	4055	}
2929		4056
2930	# load additional modules	4057	# load additional modules
2931	use cf::pod;	4058	require "cf/$_.pm" for @EXTRA_MODULES;
		4059	cf::_connect_to_perl_2;
2932		4060
2933	END { cf::emergency_save }	4061	END { cf::emergency_save }
2934		4062
2935	1	4063	1
2936		4064

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