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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.262 by root, Sat Apr 28 05:55:55 2007 UTC vs.
Revision 1.485 by root, Mon Oct 12 14:12:54 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
14		37
		38	use Guard ();
15	use Coro 3.61 ();	39	use Coro ();
16	use Coro::State;	40	use Coro::State;
17	use Coro::Handle;	41	use Coro::Handle;
		42	use Coro::EV;
18	use Coro::Event;	43	use Coro::AnyEvent;
19	use Coro::Timer;	44	use Coro::Timer;
20	use Coro::Signal;	45	use Coro::Signal;
21	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
22	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
23	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
24		53
		54	use JSON::XS 2.01 ();
25	use BDB ();	55	use BDB ();
26	use Data::Dumper;	56	use Data::Dumper;
27	use Digest::MD5;	57	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
95	binmode STDOUT;	148	binmode STDOUT;
96	binmode STDERR;	149	binmode STDERR;
97		150
98	# read virtual server time, if available	151	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
103	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
104		159
105	mkdir $_	160	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		162
108	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
109		164
110	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		177
112	#############################################################################	178	#############################################################################
113		179
114	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
115		181
…		…
139		205
140	=item $cf::TICK	206	=item $cf::TICK
141		207
142	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
143		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
144	=item %cf::CFG	220	=item %cf::CFG
145		221
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	223	from wherever your confdir points to.
148		224
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		226
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
155	=back	243	=back
156		244
157	=cut	245	=cut
158		246
159	BEGIN {	247	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	248	my $msg = join "", @_;
162		249
163	$msg .= "\n"	250	$msg .= "\n"
164	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
165		252
166	$msg =~ s/([\x00-\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	warn "error in event callback: @_";
195	};	295	};
		296
		297	#############################################################################
196		298
197	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
198		300
199	=over 4	301	=over 4
200		302
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	322	$d
221	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
222	}	324	}
223		325
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
227		327
228	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
229		329
230	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
231		331
232	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
233		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
249		373
250	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
251		375
252	=cut	376	=cut
253		377
254	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
255		379
256	sub lock_wait($) {	380	sub lock_wait($) {
257	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	382	}
265		383
266	sub lock_acquire($) {	384	sub lock_acquire($) {
267	my ($key) = @_;	385	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	386	}
279		387
280	sub lock_active($) {	388	sub lock_active($) {
281	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	390	}
285		391
286	sub freeze_mainloop {	392	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
288		394
289	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
291	};	456	}
292	$TICK_WATCHER->stop;	457	};
293	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
294	}	471	}
295		472
296	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
297		474
298	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		480
304	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
305		482
306	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
307		484
308	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
311		489
312	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
315	fast or be very important.	493	fast or be very important.
…		…
318		496
319	sub sync_job(&) {	497	sub sync_job(&) {
320	my ($job) = @_;	498	my ($job) = @_;
321		499
322	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
323	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
325		505
326	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	507
328	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
329		509
330	my $busy = 1;	510	my $busy = 1;
331	my @res;	511	my @res;
332		512
333	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	515	@res = eval { $job->() };
335	warn $@ if $@;	516	warn $@ if $@;
336	undef $busy;	517	undef $busy;
337	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
338		519
339	while ($busy) {	520	while ($busy) {
340	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
341	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
342		531
343	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
344	} else {	533	} else {
345	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
346		535
…		…
366	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
367		556
368	$coro	557	$coro
369	}	558	}
370		559
371	sub write_runtime {	560	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		561
374	my $runtime = "$LOCALDIR/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
375		566
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
377	or return;
378		568
379	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		571
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
384	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
385		575
386	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	577	reset_signals;
388	and return;	578	&$cb
		579	}, @args;
389		580
390	close $fh	581	wantarray ? @res : $res[-1]
391	or return;	582	}
392		583
393	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
394	and return;
395		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
396	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
397	}	736	}
398		737
399	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
400		739
401	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		752
414	#############################################################################	753	#############################################################################
415		754
416	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
417		756
418	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
421		760
422	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	763	Deliantra).
425		764
426	=over 4	765	=over 4
427		766
428	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
429		768
…		…
473	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
474		813
475	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
477		816
478	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
480		819
481	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
482		821
483	=over 4	822	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
593		932
594	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		937
599	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	939	my $pkg = shift @arg;
601		940
602	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
632	}	971	}
633		972
634	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
635	} else {	974	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	976	}
638		977
639	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
640	}	979	}
641		980
…		…
643	if (ref $_[0]) {	982	if (ref $_[0]) {
644	_object_attach @_;	983	_object_attach @_;
645	} else {	984	} else {
646	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
647	}	986	}
		987	_recalc_want;
648	};	988	};
649		989
650	# all those should be optimised	990	# all those should be optimised
651	sub cf::attachable::detach {	991	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
656	reattach ($obj);	996	reattach ($obj);
657	} else {	997	} else {
658	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
659	}	999	}
		1000	_recalc_want;
660	};	1001	};
661		1002
662	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
664		1005
…		…
679	";	1020	";
680	die if $@;	1021	die if $@;
681	}	1022	}
682		1023
683	our $override;	1024	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1026
686	sub override {	1027	sub override {
687	$override = 1;	1028	$override = 1;
688	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
689	}	1030	}
690		1031
691	sub do_invoke {	1032	sub do_invoke {
692	my $event = shift;	1033	my $event = shift;
693	my $callbacks = shift;	1034	my $callbacks = shift;
694		1035
695	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
696		1037
697	local $override;	1038	local $override;
698		1039
699	for (@$callbacks) {	1040	for (@$callbacks) {
700	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
709	}	1050	}
710		1051
711	0	1052	0
712	}	1053	}
713		1054
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1056
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1058
718	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
719		1060
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1064
724	=back	1065	=back
725		1066
726	=cut	1067	=cut
727		1068
728	#############################################################################	1069	#############################################################################
729	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
730		1113
731	sub reattach {	1114	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1116	my ($obj) = @_;
734		1117
		1118	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1120
737	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
738		1122
739	@$registry = ();	1123	@$registry = ();
740		1124
…		…
755	cf::attachable->attach (	1139	cf::attachable->attach (
756	prio => -1000000,	1140	prio => -1000000,
757	on_instantiate => sub {	1141	on_instantiate => sub {
758	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
759		1143
760	$data = from_json $data;	1144	$data = decode_json $data;
761		1145
762	for (@$data) {	1146	for (@$data) {
763	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
764		1148
765	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1165	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
783		1167
784	sync_job {	1168	sync_job {
785	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
788		1173
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
793	close $fh;	1181	aio_close $fh;
794		1182
795	if (@$objs) {	1183	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
801	close $fh;	1192	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
803	}	1194	}
804	} else {	1195	} else {
805	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
806	}	1197	}
807		1198
808	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1203	} else {
810	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
811	}	1205	}
812	} else {	1206	} else {
813	aio_unlink $filename;	1207	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
815	}	1209	}
816	}	1210	};
817	}	1211	}
818		1212
819	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
821		1215
…		…
833	or return;	1227	or return;
834		1228
835	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
837	or return;	1231	or return;
		1232
838	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
839	}	1235	}
840		1236
		1237	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
843	return ($data, $av);	1241	($data, $av)
844	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
845		1249
846	#############################################################################	1250	#############################################################################
847	# command handling &c	1251	# command handling &c
848		1252
849	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1267	}
864		1268
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1270
867	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
868		1276
869	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
870	called.	1278	called.
871		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
872	=cut	1291	=cut
873		1292
874	sub register_extcmd {	1293	sub register_extcmd {
875	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
876		1295
877	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
878	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
879		1306
880	cf::player->attach (	1307	cf::player->attach (
881	on_command => sub {	1308	on_command => sub {
882	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
883		1310
…		…
891	cf::override;	1318	cf::override;
892	},	1319	},
893	on_extcmd => sub {	1320	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
895		1322
896	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1324
898	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
904	} else {	1340	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1342	}
907		1343
908	cf::override;	1344	cf::override;
909	},	1345	},
910	);	1346	);
911		1347
		1348	# "readahead" all extensions
912	sub load_extension {	1349	sub cache_extensions {
913	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
914		1351
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1355	}
940	die $@;
941	}	1356	};
942		1357
943	push @EXTS, $pkg;	1358	$grp
944	}	1359	}
945		1360
946	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
947	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1366	next unless -r $path;
949	eval {	1367
950	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
951	1	1424	}
952	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
953	}	1430	};
954	}	1431	}
955		1432
956	#############################################################################	1433	#############################################################################
957		1434
		1435	=back
		1436
958	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
959		1438
960	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
961		1440
962	=cut	1441	=cut
963		1442
964	package cf::player;	1443	package cf::player;
965		1444
966	use Coro::AIO;	1445	use Coro::AIO;
967		1446
968	=head3 cf::player	1447	=head3 cf::player
969		1448
970	=over 4	1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
971		1464
972	=item cf::player::find $login	1465	=item cf::player::find $login
973		1466
974	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
975		1468
…		…
994		1487
995	sub exists($) {	1488	sub exists($) {
996	my ($login) = @_;	1489	my ($login) = @_;
997		1490
998	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1000	}	1493	}
1001		1494
1002	sub find($) {	1495	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1497	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1508
1016	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1019	}	1518	}
1020	}	1519	}
1021	}	1520	}
1022		1521
…		…
1031	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1032		1531
1033	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1035		1534
		1535	cf::get_slot 0.01;
		1536
1036	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1037	Coro::cede;	1538	cf::cede_to_tick;
1038	}	1539	}
1039		1540
1040	sub new($) {	1541	sub new($) {
1041	my ($login) = @_;	1542	my ($login) = @_;
1042		1543
…		…
1048	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1049		1550
1050	$self	1551	$self
1051	}	1552	}
1052		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1053	=item $pl->quit_character	1564	=item $pl->quit_character
1054		1565
1055	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1057		1568
…		…
1061	my ($pl) = @_;	1572	my ($pl) = @_;
1062		1573
1063	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1064		1575
1065	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1578
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1072		1585
1073	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1623	or return [];
1111		1624
1112	my @logins;	1625	my @logins;
1113		1626
1114	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1118		1637
1119	utf8::decode $login;	1638	utf8::decode $login;
1120	push @logins, $login;	1639	push @logins, $login;
1121	}	1640	}
1122		1641
…		…
1149	}	1668	}
1150		1669
1151	\@paths	1670	\@paths
1152	}	1671	}
1153		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1154	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1155		1678
1156	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1157		1680
1158	=cut	1681	=cut
1159		1682
1160	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1162		1685
1163	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1687	}
1167		1688
1168	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1169		1690
1170	Sends an ext event to the client.	1691	Sends an ext event to the client.
1171		1692
1172	=cut	1693	=cut
1173		1694
1174	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1176		1697
1177	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1178	}	1699	}
1179		1700
1180	=head3 cf::region	1701	=head3 cf::region
1181		1702
1182	=over 4	1703	=over 4
…		…
1185		1706
1186	package cf::region;	1707	package cf::region;
1187		1708
1188	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1189		1710
1190	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1191		1712
1192	=cut	1713	=cut
1193		1714
1194	sub find_by_path($) {	1715	sub find_by_path($) {
1195	my ($path) = @_;	1716	my ($path) = @_;
1196		1717
1197	my ($match, $specificity);	1718	my ($match, $specificity);
1198		1719
1199	for my $region (list) {	1720	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1203	}	1724	}
1204	}	1725	}
1205		1726
…		…
1226	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1228		1749
1229	sub generate_random_map {	1750	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1231	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1756	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1270		1794
1271	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1272	local $self->{path};	1796	local $self->{path};
1273	local $self->{load_path};	1797	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1798
1277	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1278	}	1800	}
1279		1801
1280	sub normalise {	1802	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1328	return $self;	1850	return $self;
1329	}	1851	}
1330	}	1852	}
1331		1853
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1855	()
1334	}	1856	}
1335		1857
1336	sub init {	1858	sub init {
1337	my ($self) = @_;	1859	my ($self) = @_;
…		…
1359		1881
1360	# the temporary/swap location	1882	# the temporary/swap location
1361	sub save_path {	1883	sub save_path {
1362	my ($self) = @_;	1884	my ($self) = @_;
1363		1885
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1366	}	1888	}
1367		1889
1368	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1369	sub uniq_path {	1891	sub uniq_path {
1370	my ($self) = @_;	1892	my ($self) = @_;
1371		1893
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1374	}	1896	}
1375		1897
1376	# and all this just because we cannot iterate over	1898	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1899	my ($self) = @_;
1380		1900
1381	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1383	}	1904	}
1384		1905
1385	sub unlink_save {	1906	sub unlink_save {
1386	my ($self) = @_;	1907	my ($self) = @_;
1387		1908
…		…
1392		1913
1393	sub load_header_from($) {	1914	sub load_header_from($) {
1394	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1395		1916
1396	utf8::encode $path;	1917	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1402		1926
1403	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1404		1928
1405	1	1929	1
1406	}	1930	}
…		…
1445	$self->load_header_orig	1969	$self->load_header_orig
1446	or return;	1970	or return;
1447	$self->prepare_orig;	1971	$self->prepare_orig;
1448	}	1972	}
1449		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1450	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1978	unless $self->default_region;
1452		1979
1453	1	1980	1
1454	}	1981	}
…		…
1457	sub find {	1984	sub find {
1458	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1459		1986
1460	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1461		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1991
1464	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1467	or return;	1994	or return;
1468		1995
1469	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1470		1997
1471	$map->load_header	1998	$map->load_header
1472	or return;	1999	or return;
1473		2000
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1477	$map->reset;	2006	$map->reset;
1478	undef $guard;
1479	return find $path;	2007	return find $path;
1480	}	2008	}
1481		2009
1482	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1483	}	2011	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1493		2021
1494	my $path = $self->{path};	2022	my $path = $self->{path};
1495		2023
1496	{	2024	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1498		2026
		2027	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2029
1501	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1502		2031
1503	$self->alloc;	2032	$self->alloc;
1504		2033
1505	$self->pre_load;	2034	$self->pre_load;
1506	Coro::cede;	2035	cf::cede_to_tick;
1507		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1509	or return;	2040	or return;
1510		2041
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1512	if delete $self->{load_original};	2043	if delete $self->{load_original};
1513		2044
1514	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2046	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2049	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1519	}	2053	}
1520	}	2054	}
1521		2055
1522	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1523	# now do the right thing for maps	2059	# now do the right thing for maps
1524	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2062	unless $self->difficulty;
1527	Coro::cede;	2063	cf::cede_to_tick;
1528		2064
1529	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2066	$self->decay_objects;
1531	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1532	$self->update_buttons;	2068	$self->update_buttons;
1533	Coro::cede;	2069	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2070	$self->activate;
1537	}	2071	}
1538		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2077	}
1541		2078
1542	$self->post_load;	2079	$self->post_load;
1543	}	2080	}
1544		2081
…		…
1546	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1547		2084
1548	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2086	if $self->per_player;
1550		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1551	$self	2091	$self
1552	}	2092	}
1553		2093
1554	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2095	sub load_neighbours {
1556	my ($map) = @_;	2096	my ($map) = @_;
1557		2097
1558	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1559		2099
1560	for (0 .. 3) {	2100	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1562	or next;	2102	or next;
1563	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1564	or next;	2104	or next;
1565	$neigh->load;	2105	$neigh->load;
1566		2106
		2107	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2110	}
1570		2111
1571	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1573	or next;	2115	or next;
1574	$neigh->load;	2116	$neigh->load;
1575	}	2117	}
1576	}	2118	}
1577		2119
…		…
1582	}	2124	}
1583		2125
1584	sub do_load_sync {	2126	sub do_load_sync {
1585	my ($map) = @_;	2127	my ($map) = @_;
1586		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1587	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1588	}	2133	}
1589		2134
1590	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1592		2137
1593	sub find_async {	2138	sub find_async {
1594	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1595		2140
1596	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1597		2142
1598	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2145	}
1601		2146
1602	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1603	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1604	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2154	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2155	$map->load if $v;
		2156	}
1609		2157
1610	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1611	}	2159	}
1612	}	2160	}
1613	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1614	};	2162	};
1615	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2166	}
1619		2167
1620	sub save {	2168	sub save {
1621	my ($self) = @_;	2169	my ($self) = @_;
1622		2170
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2172
1625	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1626		2174
1627	return unless $self->dirty;	2175	return unless $self->dirty;
1628		2176
…		…
1634	return if $self->{deny_save};	2182	return if $self->{deny_save};
1635		2183
1636	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1637		2185
1638	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1640	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1641		2192
1642	if ($uniq) {	2193	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2196	} else {
…		…
1651	my ($self) = @_;	2202	my ($self) = @_;
1652		2203
1653	# save first because save cedes	2204	# save first because save cedes
1654	$self->save;	2205	$self->save;
1655		2206
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2208
1658	return if $self->players;	2209	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2211	return if $self->{deny_save};
1661		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2217	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2218	}
1665		2219
1666	sub reset_at {	2220	sub reset_at {
1667	my ($self) = @_;	2221	my ($self) = @_;
1668		2222
1669	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1672		2225
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2228
…		…
1686	my ($self) = @_;	2239	my ($self) = @_;
1687		2240
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2242
1690	return if $self->players;	2243	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2244
1693	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1694		2246
1695	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1696		2248
1697	# need to save uniques path	2249	# need to save uniques path
1698	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2254	if $uniq;
1703	}	2255	}
1704		2256
1705	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1706		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2261	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2262
1711	$self->unlink_save;	2263	$self->unlink_save;
1712	$self->destroy;	2264	$self->destroy;
1713	}	2265	}
1714		2266
1715	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1716		2268
1717	sub nuke {	2269	sub nuke {
1718	my ($self) = @_;	2270	my ($self) = @_;
1719		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1720	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1721		2276
1722	$self->unlink_save;	2277	$self->unlink_save;
1723		2278
1724	bless $self, "cf::map";	2279	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2284
1730	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1731		2287
1732	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1733	}	2325	}
1734		2326
1735	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1736		2328
1737	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2330	instantiated unique items. May block.
1739		2331
1740	=cut	2332	=cut
1741		2333
1742	sub unique_maps() {	2334	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2335	[
1744	or return;	2336	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2337	utf8::decode $_;
1750	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2340	? ()
1753	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2343	]
1755
1756	\@paths
1757	}	2344	}
1758
1759	package cf;
1760		2345
1761	=back	2346	=back
1762		2347
1763	=head3 cf::object	2348	=head3 cf::object
1764		2349
…		…
1768		2353
1769	=over 4	2354	=over 4
1770		2355
1771	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1772		2357
1773	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1774		2360
1775	=cut	2361	=cut
1776		2362
1777	sub inv_recursive_;	2363	sub inv_recursive_;
1778	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1781		2367
1782	sub inv_recursive {	2368	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1784	}	2370	}
1785		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1786	package cf;	2400	package cf;
1787		2401
1788	=back	2402	=back
1789		2403
1790	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1799		2413
1800	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1801		2429
1802	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2431	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1807		2435
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2437
1810	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1812	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1815	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1816	}	2463	}
1817		2464
1818	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1819		2466
1820	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1833		2480
1834	=item $player_object->enter_link	2481	=item $player_object->enter_link
1835		2482
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2484
1838	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1840		2489
1841	Will never block.	2490	Will never block.
1842		2491
1843	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1844		2493
…		…
1867	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1868		2517
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2519
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1873		2522
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2524	}
1876		2525
1877	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1879		2530
1880	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1881		2532
1882	unless ($map) {	2533	unless ($map) {
1883	# restore original map position	2534	# restore original map position
…		…
1897	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1898	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1899	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1900		2551
1901	$map->load;	2552	$map->load;
1902	$map->load_diag;	2553	$map->load_neighbours;
1903		2554
1904	return unless $self->contr->active;	2555	return unless $self->contr->active;
1905	$self->activate_recursive;
1906		2556
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2558	$self->enter_map ($map, $x, $y);
1909	}
1910		2559
1911	cf::player->attach (	2560	# only activate afterwards, to support waiting in hooks
1912	on_logout => sub {	2561	$self->activate_recursive;
1913	my ($pl) = @_;	2562	}
1914		2563
1915	# abort map switching before logout	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1916	if ($pl->ob->{_link_pos}) {
1917	cf::sync_job {
1918	$pl->ob->leave_link
1919	};
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2565
1925	# try to abort aborted map switching on player login :)	2566	Moves the player to the given map-path and coordinates by first freezing
1926	# should happen only on crashes	2567	her, loading and preparing them map, calling the provided $check callback
1927	if ($pl->ob->{_link_pos}) {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1928	$pl->ob->enter_link;	2569	the new (success) or old (failed) map position. In either case, $done will
1929	(async {	2570	be called at the end of this process.
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942		2571
1943	=item $player_object->goto ($path, $x, $y)	2572	Note that $check will be called with a potentially non-loaded map, so if
		2573	it needs a loaded map it has to call C<< ->load >>.
1944		2574
1945	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1946		2578
1947	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2584
1950	$self->enter_link;	2585	$self->enter_link;
1951		2586
1952	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1953	my $map = eval {	2609	my $map = eval {
1954	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1956	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2625	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1961	})->prio (1);	2633	})->prio (1);
1962	}	2634	}
1963		2635
1964	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1965		2637
…		…
1985	}	2657	}
1986		2658
1987	sub prepare_random_map {	2659	sub prepare_random_map {
1988	my ($exit) = @_;	2660	my ($exit) = @_;
1989		2661
1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1991
1992	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1993	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1994	# that depends on the exit object	2664	# that depends on the exit object
1995		2665
1996	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1998	if ($exit->map) {	2668	if ($exit->map) {
1999	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
2000	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
2001	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
2002	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
2003	}	2675	}
2004		2676
2005	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
2006		2678
2007	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2008	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
2009	my $meta = "$RANDOMDIR/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
2010		2682
2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2012	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
2013	undef $fh;	2685	undef $fh;
2014	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
2015		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
2016	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
2017	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
2018	}	2694	}
2019	}	2695	}
2020		2696
2021	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
2022	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
2023		2699
2024	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
2025		2701
2026	if ($exit->slaying eq "/!") {
2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
2028	# the problem is that $exit might not survive long enough
2029	# so it needs to be done right now, right here
2030	cf::sync_job { prepare_random_map $exit };
2031	}
2032
2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2034	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;
2036
2037	$self->enter_link;	2702	$self->enter_link;
2038		2703
2039	(async {	2704	(async {
2040	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
2041	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
2042	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
2043		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
2044	1;	2728	1
2045	}) {	2729	}) {
2046	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
2047	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
2048	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
2049	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
2050		2734
2051	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
…		…
2070		2754
2071	utf8::encode $text;	2755	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2757	}
2074		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/identify" => {
		2771	id => "infobox",
		2772	title => "Identify",
		2773	reply => undef,
		2774	tooltip => "Items recently identified",
		2775	},
		2776	"c/examine" => {
		2777	id => "infobox",
		2778	title => "Examine",
		2779	reply => undef,
		2780	tooltip => "Signs and other items you examined",
		2781	},
		2782	"c/book" => {
		2783	id => "infobox",
		2784	title => "Book",
		2785	reply => undef,
		2786	tooltip => "The contents of a note or book",
		2787	},
		2788	"c/lookat" => {
		2789	id => "infobox",
		2790	title => "Look",
		2791	reply => undef,
		2792	tooltip => "What you saw there",
		2793	},
		2794	"c/who" => {
		2795	id => "infobox",
		2796	title => "Players",
		2797	reply => undef,
		2798	tooltip => "Shows players who are currently online",
		2799	},
		2800	"c/body" => {
		2801	id => "infobox",
		2802	title => "Body Parts",
		2803	reply => undef,
		2804	tooltip => "Shows which body parts you posess and are available",
		2805	},
		2806	"c/statistics" => {
		2807	id => "infobox",
		2808	title => "Statistics",
		2809	reply => undef,
		2810	tooltip => "Shows your primary statistics",
		2811	},
		2812	"c/skills" => {
		2813	id => "infobox",
		2814	title => "Skills",
		2815	reply => undef,
		2816	tooltip => "Shows your experience per skill and item power",
		2817	},
		2818	"c/shopitems" => {
		2819	id => "infobox",
		2820	title => "Shop Items",
		2821	reply => undef,
		2822	tooltip => "Shows the items currently for sale in this shop",
		2823	},
		2824	"c/resistances" => {
		2825	id => "infobox",
		2826	title => "Resistances",
		2827	reply => undef,
		2828	tooltip => "Shows your resistances",
		2829	},
		2830	"c/pets" => {
		2831	id => "infobox",
		2832	title => "Pets",
		2833	reply => undef,
		2834	tooltip => "Shows information abotu your pets/a specific pet",
		2835	},
		2836	"c/perceiveself" => {
		2837	id => "infobox",
		2838	title => "Perceive Self",
		2839	reply => undef,
		2840	tooltip => "You gained detailed knowledge about yourself",
		2841	},
		2842	"c/uptime" => {
		2843	id => "infobox",
		2844	title => "Uptime",
		2845	reply => undef,
		2846	tooltip => "How long the server has been running since last restart",
		2847	},
		2848	"c/mapinfo" => {
		2849	id => "infobox",
		2850	title => "Map Info",
		2851	reply => undef,
		2852	tooltip => "Information related to the maps",
		2853	},
		2854	"c/party" => {
		2855	id => "party",
		2856	title => "Party",
		2857	reply => "gsay ",
		2858	tooltip => "Messages and chat related to your party",
		2859	},
		2860	"c/death" => {
		2861	id => "death",
		2862	title => "Death",
		2863	reply => undef,
		2864	tooltip => "Reason for and more info about your most recent death",
		2865	},
		2866	"c/say" => $SAY_CHANNEL,
		2867	"c/chat" => $CHAT_CHANNEL,
		2868	);
		2869
		2870	sub cf::client::send_msg {
		2871	my ($self, $channel, $msg, $color, @extra) = @_;
		2872
		2873	$msg = $self->pl->expand_cfpod ($msg)
		2874	unless $color & cf::NDI_VERBATIM;
		2875
		2876	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2877
		2878	# check predefined channels, for the benefit of C
		2879	if ($CHANNEL{$channel}) {
		2880	$channel = $CHANNEL{$channel};
		2881
		2882	$self->ext_msg (channel_info => $channel);
		2883	$channel = $channel->{id};
		2884
		2885	} elsif (ref $channel) {
		2886	# send meta info to client, if not yet sent
		2887	unless (exists $self->{channel}{$channel->{id}}) {
		2888	$self->{channel}{$channel->{id}} = $channel;
		2889	$self->ext_msg (channel_info => $channel);
		2890	}
		2891
		2892	$channel = $channel->{id};
		2893	}
		2894
		2895	return unless @extra || length $msg;
		2896
		2897	# default colour, mask it out
		2898	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2899	if $color & cf::NDI_DEF;
		2900
		2901	my $pkt = "msg "
		2902	. $self->{json_coder}->encode (
		2903	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2904	);
		2905
		2906	# try lzf for large packets
		2907	$pkt = "lzf " . Compress::LZF::compress $pkt
		2908	if 1024 <= length $pkt and $self->{can_lzf};
		2909
		2910	# split very large packets
		2911	if (8192 < length $pkt and $self->{can_lzf}) {
		2912	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2913	$pkt = "frag";
		2914	}
		2915
		2916	$self->send_packet ($pkt);
		2917	}
		2918
2075	=item $client->ext_event ($type, %msg)	2919	=item $client->ext_msg ($type, @msg)
2076		2920
2077	Sends an exti event to the client.	2921	Sends an ext event to the client.
2078		2922
2079	=cut	2923	=cut
2080		2924
2081	sub cf::client::ext_event($$%) {	2925	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	2926	my ($self, $type, @msg) = @_;
2083		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2930	} elsif ($self->extcmd == 1) { # TODO: remove
2084	$msg{msgtype} = "event_$type";	2931	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
		2934	}
		2935
		2936	=item $client->ext_reply ($msgid, @msg)
		2937
		2938	Sends an ext reply to the client.
		2939
		2940	=cut
		2941
		2942	sub cf::client::ext_reply($$@) {
		2943	my ($self, $id, @msg) = @_;
		2944
		2945	if ($self->extcmd == 2) {
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2947	} elsif ($self->extcmd == 1) {
		2948	#TODO: version 1, remove
		2949	unshift @msg, msgtype => "reply", msgid => $id;
		2950	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2951	}
2086	}	2952	}
2087		2953
2088	=item $success = $client->query ($flags, "text", \&cb)	2954	=item $success = $client->query ($flags, "text", \&cb)
2089		2955
2090	Queues a query to the client, calling the given callback with	2956	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2957	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2958	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2959
2094	Queries can fail, so check the return code. Or don't, as queries will become	2960	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	2961	become reliable at some point in the future.
2096		2962
2097	=cut	2963	=cut
2098		2964
2099	sub cf::client::query {	2965	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2966	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2974	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2975	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2976
2111	$self->send_packet ($self->{query_queue}[0][0])	2977	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2978	if @{ $self->{query_queue} } == 1;
		2979
		2980	1
2113	}	2981	}
2114		2982
2115	cf::client->attach (	2983	cf::client->attach (
		2984	on_connect => sub {
		2985	my ($ns) = @_;
		2986
		2987	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2988	},
2116	on_reply => sub {	2989	on_reply => sub {
2117	my ($ns, $msg) = @_;	2990	my ($ns, $msg) = @_;
2118		2991
2119	# this weird shuffling is so that direct followup queries	2992	# this weird shuffling is so that direct followup queries
2120	# get handled first	2993	# get handled first
…		…
2132	} else {	3005	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3006	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	3007	}
2135	}	3008	}
2136	},	3009	},
		3010	on_exticmd => sub {
		3011	my ($ns, $buf) = @_;
		3012
		3013	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3014
		3015	if (ref $msg) {
		3016	my ($type, $reply, @payload) =
		3017	"ARRAY" eq ref $msg
		3018	? @$msg
		3019	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3020
		3021	my @reply;
		3022
		3023	if (my $cb = $EXTICMD{$type}) {
		3024	@reply = $cb->($ns, @payload);
		3025	}
		3026
		3027	$ns->ext_reply ($reply, @reply)
		3028	if $reply;
		3029
		3030	} else {
		3031	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3032	}
		3033
		3034	cf::override;
		3035	},
2137	);	3036	);
2138		3037
2139	=item $client->async (\&cb)	3038	=item $client->async (\&cb)
2140		3039
2141	Create a new coroutine, running the specified callback. The coroutine will	3040	Create a new coroutine, running the specified callback. The coroutine will
…		…
2182	our $safe = new Safe "safe";	3081	our $safe = new Safe "safe";
2183	our $safe_hole = new Safe::Hole;	3082	our $safe_hole = new Safe::Hole;
2184		3083
2185	$SIG{FPE} = 'IGNORE';	3084	$SIG{FPE} = 'IGNORE';
2186		3085
2187	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3086	$safe->permit_only (Opcode::opset qw(
		3087	:base_core :base_mem :base_orig :base_math
		3088	grepstart grepwhile mapstart mapwhile
		3089	sort time
		3090	));
2188		3091
2189	# here we export the classes and methods available to script code	3092	# here we export the classes and methods available to script code
2190		3093
2191	=pod	3094	=pod
2192		3095
2193	The following functions and methods are available within a safe environment:	3096	The following functions and methods are available within a safe environment:
2194		3097
2195	cf::object contr pay_amount pay_player map	3098	cf::object
		3099	contr pay_amount pay_player map x y force_find force_add destroy
		3100	insert remove name archname title slaying race decrease split
		3101	value
		3102
2196	cf::object::player player	3103	cf::object::player
2197	cf::player peaceful	3104	player
2198	cf::map trigger	3105
		3106	cf::player
		3107	peaceful
		3108
		3109	cf::map
		3110	trigger
2199		3111
2200	=cut	3112	=cut
2201		3113
2202	for (	3114	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	3115	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3116	insert remove inv nrof name archname title slaying race
		3117	decrease split destroy change_exp value msg lore send_msg)],
2204	["cf::object::player" => qw(player)],	3118	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	3119	["cf::player" => qw(peaceful send_msg)],
2206	["cf::map" => qw(trigger)],	3120	["cf::map" => qw(trigger)],
2207	) {	3121	) {
2208	no strict 'refs';	3122	no strict 'refs';
2209	my ($pkg, @funs) = @$_;	3123	my ($pkg, @funs) = @$_;
2210	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2227	my ($code, %vars) = @_;	3141	my ($code, %vars) = @_;
2228		3142
2229	my $qcode = $code;	3143	my $qcode = $code;
2230	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3144	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2231	$qcode =~ s/\n/\\n/g;	3145	$qcode =~ s/\n/\\n/g;
		3146
		3147	%vars = (_dummy => 0) unless %vars;
2232		3148
2233	local $_;	3149	local $_;
2234	local @safe::cf::_safe_eval_args = values %vars;	3150	local @safe::cf::_safe_eval_args = values %vars;
2235		3151
2236	my $eval =	3152	my $eval =
…		…
2279	=back	3195	=back
2280		3196
2281	=cut	3197	=cut
2282		3198
2283	#############################################################################	3199	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	reset_signals;
2441	local $SIG{__WARN__};
2442	local $SIG{__DIE__};
2443	eval {
2444	close $fh1;
2445
2446	my @res = eval { $cb->(@args) };
2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2448	};
2449
2450	warn $@ if $@;
2451	_exit 0;
2452	}
2453	}
2454
2455
2456
2457	#############################################################################
2458	# the server's init and main functions	3200	# the server's init and main functions
2459		3201
2460	sub load_facedata($) {	3202	sub load_facedata($) {
2461	my ($path) = @_;	3203	my ($path) = @_;
		3204
		3205	# HACK to clear player env face cache, we need some signal framework
		3206	# for this (global event?)
		3207	%ext::player_env::MUSIC_FACE_CACHE = ();
		3208
		3209	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2462		3210
2463	warn "loading facedata from $path\n";	3211	warn "loading facedata from $path\n";
2464		3212
2465	my $facedata;	3213	my $facedata;
2466	0 < aio_load $path, $facedata	3214	0 < aio_load $path, $facedata
…		…
2469	$facedata = Coro::Storable::thaw $facedata;	3217	$facedata = Coro::Storable::thaw $facedata;
2470		3218
2471	$facedata->{version} == 2	3219	$facedata->{version} == 2
2472	or cf::cleanup "$path: version mismatch, cannot proceed.";	3220	or cf::cleanup "$path: version mismatch, cannot proceed.";
2473		3221
		3222	# patch in the exptable
		3223	$facedata->{resource}{"res/exp_table"} = {
		3224	type => FT_RSRC,
		3225	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3226	};
		3227	cf::cede_to_tick;
		3228
2474	{	3229	{
2475	my $faces = $facedata->{faceinfo};	3230	my $faces = $facedata->{faceinfo};
2476		3231
2477	while (my ($face, $info) = each %$faces) {	3232	while (my ($face, $info) = each %$faces) {
2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3233	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3234
2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3235	cf::face::set_visibility $idx, $info->{visibility};
		3236	cf::face::set_magicmap $idx, $info->{magicmap};
2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3237	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3238	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2482	Coro::cede;	3239
		3240	cf::cede_to_tick;
2483	}	3241	}
2484		3242
2485	while (my ($face, $info) = each %$faces) {	3243	while (my ($face, $info) = each %$faces) {
2486	next unless $info->{smooth};	3244	next unless $info->{smooth};
		3245
2487	my $idx = cf::face::find $face	3246	my $idx = cf::face::find $face
2488	or next;	3247	or next;
		3248
2489	if (my $smooth = cf::face::find $info->{smooth}) {	3249	if (my $smooth = cf::face::find $info->{smooth}) {
		3250	cf::face::set_smooth $idx, $smooth;
2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3251	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2491	} else {	3252	} else {
2492	warn "smooth face '$info->{smooth}' not found for face '$face'";	3253	warn "smooth face '$info->{smooth}' not found for face '$face'";
2493	}	3254	}
2494	Coro::cede;	3255
		3256	cf::cede_to_tick;
2495	}	3257	}
2496	}	3258	}
2497		3259
2498	{	3260	{
2499	my $anims = $facedata->{animinfo};	3261	my $anims = $facedata->{animinfo};
2500		3262
2501	while (my ($anim, $info) = each %$anims) {	3263	while (my ($anim, $info) = each %$anims) {
2502	cf::anim::set $anim, $info->{frames}, $info->{facings};	3264	cf::anim::set $anim, $info->{frames}, $info->{facings};
2503	Coro::cede;	3265	cf::cede_to_tick;
2504	}	3266	}
2505		3267
2506	cf::anim::invalidate_all; # d'oh	3268	cf::anim::invalidate_all; # d'oh
2507	}	3269	}
2508		3270
		3271	{
		3272	# TODO: for gcfclient pleasure, we should give resources
		3273	# that gcfclient doesn't grok a >10000 face index.
		3274	my $res = $facedata->{resource};
		3275
		3276	while (my ($name, $info) = each %$res) {
		3277	if (defined $info->{type}) {
		3278	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3279	my $data;
		3280
		3281	if ($info->{type} & 1) {
		3282	# prepend meta info
		3283
		3284	my $meta = $enc->encode ({
		3285	name => $name,
		3286	%{ $info->{meta} || {} },
		3287	});
		3288
		3289	$data = pack "(w/a*)*", $meta, $info->{data};
		3290	} else {
		3291	$data = $info->{data};
		3292	}
		3293
		3294	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3295	cf::face::set_type $idx, $info->{type};
		3296	} else {
		3297	$RESOURCE{$name} = $info;
		3298	}
		3299
		3300	cf::cede_to_tick;
		3301	}
		3302	}
		3303
		3304	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3305
2509	1	3306	1
2510	}	3307	}
2511		3308
		3309	cf::global->attach (on_resource_update => sub {
		3310	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3311	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3312
		3313	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3314	my $sound = $soundconf->{compat}[$_]
		3315	or next;
		3316
		3317	my $face = cf::face::find "sound/$sound->[1]";
		3318	cf::sound::set $sound->[0] => $face;
		3319	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3320	}
		3321
		3322	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3323	my $face = cf::face::find "sound/$v";
		3324	cf::sound::set $k => $face;
		3325	}
		3326	}
		3327	});
		3328
		3329	register_exticmd fx_want => sub {
		3330	my ($ns, $want) = @_;
		3331
		3332	while (my ($k, $v) = each %$want) {
		3333	$ns->fx_want ($k, $v);
		3334	}
		3335	};
		3336
		3337	sub load_resource_file($) {
		3338	my $guard = lock_acquire "load_resource_file";
		3339
		3340	my $status = load_resource_file_ $_[0];
		3341	get_slot 0.1, 100;
		3342	cf::arch::commit_load;
		3343
		3344	$status
		3345	}
		3346
2512	sub reload_regions {	3347	sub reload_regions {
		3348	# HACK to clear player env face cache, we need some signal framework
		3349	# for this (global event?)
		3350	%ext::player_env::MUSIC_FACE_CACHE = ();
		3351
2513	load_resource_file "$MAPDIR/regions"	3352	load_resource_file "$MAPDIR/regions"
2514	or die "unable to load regions file\n";	3353	or die "unable to load regions file\n";
		3354
		3355	for (cf::region::list) {
		3356	$_->{match} = qr/$_->{match}/
		3357	if exists $_->{match};
		3358	}
2515	}	3359	}
2516		3360
2517	sub reload_facedata {	3361	sub reload_facedata {
2518	load_facedata "$DATADIR/facedata"	3362	load_facedata "$DATADIR/facedata"
2519	or die "unable to load facedata\n";	3363	or die "unable to load facedata\n";
…		…
2530	}	3374	}
2531		3375
2532	sub reload_resources {	3376	sub reload_resources {
2533	warn "reloading resource files...\n";	3377	warn "reloading resource files...\n";
2534		3378
2535	reload_regions;
2536	reload_facedata;	3379	reload_facedata;
2537	reload_archetypes;	3380	reload_archetypes;
		3381	reload_regions;
2538	reload_treasures;	3382	reload_treasures;
2539		3383
2540	warn "finished reloading resource files\n";	3384	warn "finished reloading resource files\n";
2541	}	3385	}
2542		3386
2543	sub init {	3387	sub reload_config {
2544	reload_resources;	3388	warn "reloading config file...\n";
2545	}
2546		3389
2547	sub cfg_load {
2548	open my $fh, "<:utf8", "$CONFDIR/config"	3390	open my $fh, "<:utf8", "$CONFDIR/config"
2549	or return;	3391	or return;
2550		3392
2551	local $/;	3393	local $/;
2552	*CFG = YAML::Syck::Load <$fh>;	3394	*CFG = YAML::XS::Load scalar <$fh>;
2553		3395
2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3396	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2555		3397
2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3398	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3399	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3403	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2562	and die "WARNING: m(un)lockall failed: $!\n";	3404	and die "WARNING: m(un)lockall failed: $!\n";
2563	};	3405	};
2564	warn $@ if $@;	3406	warn $@ if $@;
2565	}	3407	}
		3408
		3409	warn "finished reloading resource files\n";
		3410	}
		3411
		3412	sub pidfile() {
		3413	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3414	or die "$PIDFILE: $!";
		3415	flock $fh, &Fcntl::LOCK_EX
		3416	or die "$PIDFILE: flock: $!";
		3417	$fh
		3418	}
		3419
		3420	# make sure only one server instance is running at any one time
		3421	sub atomic {
		3422	my $fh = pidfile;
		3423
		3424	my $pid = <$fh>;
		3425	kill 9, $pid if $pid > 0;
		3426
		3427	seek $fh, 0, 0;
		3428	print $fh $$;
		3429	}
		3430
		3431	sub main_loop {
		3432	warn "EV::loop starting\n";
		3433	if (1) {
		3434	EV::loop;
		3435	}
		3436	warn "EV::loop returned\n";
		3437	goto &main_loop unless $REALLY_UNLOOP;
2566	}	3438	}
2567		3439
2568	sub main {	3440	sub main {
		3441	cf::init_globals; # initialise logging
		3442
		3443	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3444	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3445	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3446	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3447
		3448	cf::init_experience;
		3449	cf::init_anim;
		3450	cf::init_attackmess;
		3451	cf::init_dynamic;
		3452
		3453	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3454
2569	# we must not ever block the main coroutine	3455	# we must not ever block the main coroutine
2570	local $Coro::idle = sub {	3456	local $Coro::idle = sub {
2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3457	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2572	(async {	3458	(async {
2573	Event::one_event;	3459	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3460	EV::loop EV::LOOP_ONESHOT;
2574	})->prio (Coro::PRIO_MAX);	3461	})->prio (Coro::PRIO_MAX);
2575	};	3462	};
2576		3463
2577	cfg_load;	3464	evthread_start IO::AIO::poll_fileno;
		3465
		3466	cf::sync_job {
		3467	reload_resources;
		3468	reload_config;
2578	db_init;	3469	db_init;
		3470
		3471	cf::load_settings;
		3472	cf::load_materials;
		3473	cf::init_uuid;
		3474	cf::init_signals;
		3475	cf::init_commands;
		3476	cf::init_skills;
		3477
		3478	cf::init_beforeplay;
		3479
		3480	atomic;
		3481
2579	load_extensions;	3482	load_extensions;
2580		3483
2581	$TICK_WATCHER->start;	3484	utime time, time, $RUNTIMEFILE;
2582	Event::loop;	3485
		3486	# no (long-running) fork's whatsoever before this point(!)
		3487	use POSIX ();
		3488	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3489
		3490	(pop @POST_INIT)->(0) while @POST_INIT;
		3491	};
		3492
		3493	main_loop;
2583	}	3494	}
2584		3495
2585	#############################################################################	3496	#############################################################################
2586	# initialisation and cleanup	3497	# initialisation and cleanup
2587		3498
2588	# install some emergency cleanup handlers	3499	# install some emergency cleanup handlers
2589	BEGIN {	3500	BEGIN {
		3501	our %SIGWATCHER = ();
2590	for my $signal (qw(INT HUP TERM)) {	3502	for my $signal (qw(INT HUP TERM)) {
2591	Event->signal (	3503	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2592	reentrant => 0,
2593	data => WF_AUTOCANCEL,
2594	signal => $signal,
2595	prio => 0,
2596	cb => sub {
2597	cf::cleanup "SIG$signal";	3504	cf::cleanup "SIG$signal";
2598	},
2599	);	3505	};
		3506	}
		3507	}
		3508
		3509	sub write_runtime_sync {
		3510	# first touch the runtime file to show we are still running:
		3511	# the fsync below can take a very very long time.
		3512
		3513	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3514
		3515	my $guard = cf::lock_acquire "write_runtime";
		3516
		3517	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3518	or return;
		3519
		3520	my $value = $cf::RUNTIME + 90 + 10;
		3521	# 10 is the runtime save interval, for a monotonic clock
		3522	# 60 allows for the watchdog to kill the server.
		3523
		3524	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3525	and return;
		3526
		3527	# always fsync - this file is important
		3528	aio_fsync $fh
		3529	and return;
		3530
		3531	# touch it again to show we are up-to-date
		3532	aio_utime $fh, undef, undef;
		3533
		3534	close $fh
		3535	or return;
		3536
		3537	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3538	and return;
		3539
		3540	warn "runtime file written.\n";
		3541
2600	}	3542	1
		3543	}
		3544
		3545	our $uuid_lock;
		3546	our $uuid_skip;
		3547
		3548	sub write_uuid_sync($) {
		3549	$uuid_skip ||= $_[0];
		3550
		3551	return if $uuid_lock;
		3552	local $uuid_lock = 1;
		3553
		3554	my $uuid = "$LOCALDIR/uuid";
		3555
		3556	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3557	or return;
		3558
		3559	my $value = uuid_seq uuid_cur;
		3560
		3561	unless ($value) {
		3562	warn "cowardly refusing to write zero uuid value!\n";
		3563	return;
		3564	}
		3565
		3566	my $value = uuid_str $value + $uuid_skip;
		3567	$uuid_skip = 0;
		3568
		3569	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3570	and return;
		3571
		3572	# always fsync - this file is important
		3573	aio_fsync $fh
		3574	and return;
		3575
		3576	close $fh
		3577	or return;
		3578
		3579	aio_rename "$uuid~", $uuid
		3580	and return;
		3581
		3582	warn "uuid file written ($value).\n";
		3583
		3584	1
		3585
		3586	}
		3587
		3588	sub write_uuid($$) {
		3589	my ($skip, $sync) = @_;
		3590
		3591	$sync ? write_uuid_sync $skip
		3592	: async { write_uuid_sync $skip };
2601	}	3593	}
2602		3594
2603	sub emergency_save() {	3595	sub emergency_save() {
2604	my $freeze_guard = cf::freeze_mainloop;	3596	my $freeze_guard = cf::freeze_mainloop;
2605		3597
2606	warn "enter emergency perl save\n";	3598	warn "emergency_perl_save: enter\n";
2607		3599
2608	cf::sync_job {	3600	cf::sync_job {
		3601	# this is a trade-off: we want to be very quick here, so
		3602	# save all maps without fsync, and later call a global sync
		3603	# (which in turn might be very very slow)
		3604	local $USE_FSYNC = 0;
		3605
2609	# use a peculiar iteration method to avoid tripping on perl	3606	# use a peculiar iteration method to avoid tripping on perl
2610	# refcount bugs in for. also avoids problems with players	3607	# refcount bugs in for. also avoids problems with players
2611	# and maps saved/destroyed asynchronously.	3608	# and maps saved/destroyed asynchronously.
2612	warn "begin emergency player save\n";	3609	warn "emergency_perl_save: begin player save\n";
2613	for my $login (keys %cf::PLAYER) {	3610	for my $login (keys %cf::PLAYER) {
2614	my $pl = $cf::PLAYER{$login} or next;	3611	my $pl = $cf::PLAYER{$login} or next;
2615	$pl->valid or next;	3612	$pl->valid or next;
		3613	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2616	$pl->save;	3614	$pl->save;
2617	}	3615	}
2618	warn "end emergency player save\n";	3616	warn "emergency_perl_save: end player save\n";
2619		3617
2620	warn "begin emergency map save\n";	3618	warn "emergency_perl_save: begin map save\n";
2621	for my $path (keys %cf::MAP) {	3619	for my $path (keys %cf::MAP) {
2622	my $map = $cf::MAP{$path} or next;	3620	my $map = $cf::MAP{$path} or next;
2623	$map->valid or next;	3621	$map->valid or next;
2624	$map->save;	3622	$map->save;
2625	}	3623	}
2626	warn "end emergency map save\n";	3624	warn "emergency_perl_save: end map save\n";
2627		3625
2628	warn "begin emergency database checkpoint\n";	3626	warn "emergency_perl_save: begin database checkpoint\n";
2629	BDB::db_env_txn_checkpoint $DB_ENV;	3627	BDB::db_env_txn_checkpoint $DB_ENV;
2630	warn "end emergency database checkpoint\n";	3628	warn "emergency_perl_save: end database checkpoint\n";
		3629
		3630	warn "emergency_perl_save: begin write uuid\n";
		3631	write_uuid_sync 1;
		3632	warn "emergency_perl_save: end write uuid\n";
2631	};	3633	};
2632		3634
		3635	warn "emergency_perl_save: starting sync()\n";
		3636	IO::AIO::aio_sync sub {
		3637	warn "emergency_perl_save: finished sync()\n";
		3638	};
		3639
2633	warn "leave emergency perl save\n";	3640	warn "emergency_perl_save: leave\n";
2634	}	3641	}
2635		3642
2636	sub post_cleanup {	3643	sub post_cleanup {
2637	my ($make_core) = @_;	3644	my ($make_core) = @_;
2638		3645
2639	warn Carp::longmess "post_cleanup backtrace"	3646	warn Carp::longmess "post_cleanup backtrace"
2640	if $make_core;	3647	if $make_core;
		3648
		3649	my $fh = pidfile;
		3650	unlink $PIDFILE if <$fh> == $$;
		3651	}
		3652
		3653	# a safer delete_package, copied from Symbol
		3654	sub clear_package($) {
		3655	my $pkg = shift;
		3656
		3657	# expand to full symbol table name if needed
		3658	unless ($pkg =~ /^main::.*::$/) {
		3659	$pkg = "main$pkg" if $pkg =~ /^::/;
		3660	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3661	$pkg .= '::' unless $pkg =~ /::$/;
		3662	}
		3663
		3664	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3665	my $stem_symtab = *{$stem}{HASH};
		3666
		3667	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3668	or return;
		3669
		3670	# clear all symbols
		3671	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3672	for my $name (keys %$leaf_symtab) {
		3673	_gv_clear *{"$pkg$name"};
		3674	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3675	}
		3676	warn "cleared package $pkg\n";#d#
2641	}	3677	}
2642		3678
2643	sub do_reload_perl() {	3679	sub do_reload_perl() {
2644	# can/must only be called in main	3680	# can/must only be called in main
2645	if ($Coro::current != $Coro::main) {	3681	if ($Coro::current != $Coro::main) {
2646	warn "can only reload from main coroutine";	3682	warn "can only reload from main coroutine";
2647	return;	3683	return;
2648	}	3684	}
2649		3685
		3686	return if $RELOAD++;
		3687
		3688	my $t1 = EV::time;
		3689
		3690	while ($RELOAD) {
2650	warn "reloading...";	3691	warn "reloading...";
2651		3692
2652	warn "entering sync_job";	3693	warn "entering sync_job";
2653		3694
2654	cf::sync_job {	3695	cf::sync_job {
2655	cf::write_runtime; # external watchdog should not bark	3696	cf::write_runtime_sync; # external watchdog should not bark
2656	cf::emergency_save;	3697	cf::emergency_save;
2657	cf::write_runtime; # external watchdog should not bark	3698	cf::write_runtime_sync; # external watchdog should not bark
2658		3699
2659	warn "syncing database to disk";	3700	warn "syncing database to disk";
2660	BDB::db_env_txn_checkpoint $DB_ENV;	3701	BDB::db_env_txn_checkpoint $DB_ENV;
2661		3702
2662	# if anything goes wrong in here, we should simply crash as we already saved	3703	# if anything goes wrong in here, we should simply crash as we already saved
2663		3704
2664	warn "cancelling all WF_AUTOCANCEL watchers";
2665	for (Event::all_watchers) {
2666	$_->cancel if $_->data & WF_AUTOCANCEL;
2667	}
2668
2669	warn "flushing outstanding aio requests";	3705	warn "flushing outstanding aio requests";
2670	for (;;) {
2671	BDB::flush;
2672	IO::AIO::flush;
2673	Coro::cede;
2674	last unless IO::AIO::nreqs || BDB::nreqs;	3706	while (IO::AIO::nreqs || BDB::nreqs) {
2675	warn "iterate...";	3707	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2676	}
2677
2678	++$RELOAD;
2679
2680	warn "cancelling all extension coros";
2681	$_->cancel for values %EXT_CORO;
2682	%EXT_CORO = ();
2683
2684	warn "removing commands";
2685	%COMMAND = ();
2686
2687	warn "removing ext commands";
2688	%EXTCMD = ();
2689
2690	warn "unloading/nuking all extensions";
2691	for my $pkg (@EXTS) {
2692	warn "... unloading $pkg";
2693
2694	if (my $cb = $pkg->can ("unload")) {
2695	eval {
2696	$cb->($pkg);
2697	1
2698	} or warn "$pkg unloaded, but with errors: $@";
2699	}	3708	}
2700		3709
2701	warn "... nuking $pkg";	3710	warn "cancelling all extension coros";
2702	Symbol::delete_package $pkg;	3711	$_->cancel for values %EXT_CORO;
2703	}	3712	%EXT_CORO = ();
2704		3713
2705	warn "unloading all perl modules loaded from $LIBDIR";	3714	warn "removing commands";
2706	while (my ($k, $v) = each %INC) {	3715	%COMMAND = ();
2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2708		3716
		3717	warn "removing ext/exti commands";
		3718	%EXTCMD = ();
		3719	%EXTICMD = ();
		3720
		3721	warn "unloading/nuking all extensions";
		3722	for my $pkg (@EXTS) {
2709	warn "... unloading $k";	3723	warn "... unloading $pkg";
2710	delete $INC{$k};
2711		3724
2712	$k =~ s/\.pm$//;
2713	$k =~ s/\//::/g;
2714
2715	if (my $cb = $k->can ("unload_module")) {	3725	if (my $cb = $pkg->can ("unload")) {
		3726	eval {
2716	$cb->();	3727	$cb->($pkg);
		3728	1
		3729	} or warn "$pkg unloaded, but with errors: $@";
		3730	}
		3731
		3732	warn "... clearing $pkg";
		3733	clear_package $pkg;
2717	}	3734	}
2718		3735
2719	Symbol::delete_package $k;	3736	warn "unloading all perl modules loaded from $LIBDIR";
		3737	while (my ($k, $v) = each %INC) {
		3738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3739
		3740	warn "... unloading $k";
		3741	delete $INC{$k};
		3742
		3743	$k =~ s/\.pm$//;
		3744	$k =~ s/\//::/g;
		3745
		3746	if (my $cb = $k->can ("unload_module")) {
		3747	$cb->();
		3748	}
		3749
		3750	clear_package $k;
2720	}	3751	}
2721		3752
2722	warn "getting rid of safe::, as good as possible";	3753	warn "getting rid of safe::, as good as possible";
2723	Symbol::delete_package "safe::$_"	3754	clear_package "safe::$_"
2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2725		3756
2726	warn "unloading cf.pm \"a bit\"";	3757	warn "unloading cf.pm \"a bit\"";
2727	delete $INC{"cf.pm"};	3758	delete $INC{"cf.pm"};
2728	delete $INC{"cf/pod.pm"};	3759	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2729		3760
2730	# don't, removes xs symbols, too,	3761	# don't, removes xs symbols, too,
2731	# and global variables created in xs	3762	# and global variables created in xs
2732	#Symbol::delete_package __PACKAGE__;	3763	#clear_package __PACKAGE__;
2733		3764
2734	warn "unload completed, starting to reload now";	3765	warn "unload completed, starting to reload now";
2735		3766
2736	warn "reloading cf.pm";	3767	warn "reloading cf.pm";
2737	require cf;	3768	require cf;
2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3769	cf::_connect_to_perl_1;
2739		3770
2740	warn "loading config and database again";	3771	warn "loading config and database again";
2741	cf::cfg_load;	3772	cf::reload_config;
2742		3773
2743	warn "loading extensions";	3774	warn "loading extensions";
2744	cf::load_extensions;	3775	cf::load_extensions;
2745		3776
		3777	if ($REATTACH_ON_RELOAD) {
2746	warn "reattaching attachments to objects/players";	3778	warn "reattaching attachments to objects/players";
2747	_global_reattach; # objects, sockets	3779	_global_reattach; # objects, sockets
2748	warn "reattaching attachments to maps";	3780	warn "reattaching attachments to maps";
2749	reattach $_ for values %MAP;	3781	reattach $_ for values %MAP;
2750	warn "reattaching attachments to players";	3782	warn "reattaching attachments to players";
2751	reattach $_ for values %PLAYER;	3783	reattach $_ for values %PLAYER;
		3784	}
2752		3785
		3786	warn "running post_init jobs";
		3787	(pop @POST_INIT)->(1) while @POST_INIT;
		3788
2753	warn "leaving sync_job";	3789	warn "leaving sync_job";
2754		3790
2755	1	3791	1
2756	} or do {	3792	} or do {
2757	warn $@;	3793	warn $@;
2758	warn "error while reloading, exiting.";	3794	cf::cleanup "error while reloading, exiting.";
2759	exit 1;
2760	};	3795	};
2761		3796
2762	warn "reloaded";	3797	warn "reloaded";
		3798	--$RELOAD;
		3799	}
		3800
		3801	$t1 = EV::time - $t1;
		3802	warn "reload completed in ${t1}s\n";
2763	};	3803	};
2764		3804
2765	our $RELOAD_WATCHER; # used only during reload	3805	our $RELOAD_WATCHER; # used only during reload
2766		3806
2767	sub reload_perl() {	3807	sub reload_perl() {
2768	# doing reload synchronously and two reloads happen back-to-back,	3808	# doing reload synchronously and two reloads happen back-to-back,
2769	# coro crashes during coro_state_free->destroy here.	3809	# coro crashes during coro_state_free->destroy here.
2770		3810
2771	$RELOAD_WATCHER ||= Event->timer (	3811	$RELOAD_WATCHER ||= cf::async {
2772	reentrant => 0,	3812	Coro::AIO::aio_wait cache_extensions;
2773	after => 0,	3813
2774	data => WF_AUTOCANCEL,	3814	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2775	cb => sub {
2776	do_reload_perl;	3815	do_reload_perl;
2777	undef $RELOAD_WATCHER;	3816	undef $RELOAD_WATCHER;
2778	},	3817	};
2779	);	3818	};
2780	}	3819	}
2781		3820
2782	register_command "reload" => sub {	3821	register_command "reload" => sub {
2783	my ($who, $arg) = @_;	3822	my ($who, $arg) = @_;
2784		3823
2785	if ($who->flag (FLAG_WIZ)) {	3824	if ($who->flag (FLAG_WIZ)) {
2786	$who->message ("reloading server.");	3825	$who->message ("reloading server.");
		3826	async {
		3827	$Coro::current->{desc} = "perl_reload";
2787	async { reload_perl };	3828	reload_perl;
		3829	};
2788	}	3830	}
2789	};	3831	};
2790		3832
2791	unshift @INC, $LIBDIR;	3833	unshift @INC, $LIBDIR;
2792		3834
…		…
2794		3836
2795	our @WAIT_FOR_TICK;	3837	our @WAIT_FOR_TICK;
2796	our @WAIT_FOR_TICK_BEGIN;	3838	our @WAIT_FOR_TICK_BEGIN;
2797		3839
2798	sub wait_for_tick {	3840	sub wait_for_tick {
2799	return unless $TICK_WATCHER->is_active;
2800	return if $Coro::current == $Coro::main;	3841	return if tick_inhibit || $Coro::current == $Coro::main;
2801		3842
2802	my $signal = new Coro::Signal;	3843	my $signal = new Coro::Signal;
2803	push @WAIT_FOR_TICK, $signal;	3844	push @WAIT_FOR_TICK, $signal;
2804	$signal->wait;	3845	$signal->wait;
2805	}	3846	}
2806		3847
2807	sub wait_for_tick_begin {	3848	sub wait_for_tick_begin {
2808	return unless $TICK_WATCHER->is_active;
2809	return if $Coro::current == $Coro::main;	3849	return if tick_inhibit || $Coro::current == $Coro::main;
2810		3850
2811	my $signal = new Coro::Signal;	3851	my $signal = new Coro::Signal;
2812	push @WAIT_FOR_TICK_BEGIN, $signal;	3852	push @WAIT_FOR_TICK_BEGIN, $signal;
2813	$signal->wait;	3853	$signal->wait;
2814	}	3854	}
2815		3855
2816	$TICK_WATCHER = Event->timer (	3856	sub tick {
2817	reentrant => 0,
2818	parked => 1,
2819	prio => 0,
2820	at => $NEXT_TICK || $TICK,
2821	data => WF_AUTOCANCEL,
2822	cb => sub {
2823	if ($Coro::current != $Coro::main) {	3857	if ($Coro::current != $Coro::main) {
2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3858	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2825	unless ++$bug_warning > 10;	3859	unless ++$bug_warning > 10;
2826	return;	3860	return;
2827	}	3861	}
2828		3862
2829	$NOW = Event::time;
2830
2831	cf::server_tick; # one server iteration	3863	cf::server_tick; # one server iteration
2832		3864
2833	$RUNTIME += $TICK;
2834	$NEXT_TICK += $TICK;
2835
2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3865	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2837	$NEXT_RUNTIME_WRITE = $NOW + 10;	3866	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2838	Coro::async_pool {	3867	Coro::async_pool {
		3868	$Coro::current->{desc} = "runtime saver";
2839	write_runtime	3869	write_runtime_sync
2840	or warn "ERROR: unable to write runtime file: $!";	3870	or warn "ERROR: unable to write runtime file: $!";
2841	};
2842	}	3871	};
		3872	}
2843		3873
2844	# my $AFTER = Event::time;
2845	# warn $AFTER - $NOW;#d#
2846
2847	# if we are delayed by four ticks or more, skip them all
2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2849
2850	$TICK_WATCHER->at ($NEXT_TICK);
2851	$TICK_WATCHER->start;
2852
2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3874	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2854	$sig->send;	3875	$sig->send;
2855	}	3876	}
2856	while (my $sig = shift @WAIT_FOR_TICK) {	3877	while (my $sig = shift @WAIT_FOR_TICK) {
2857	$sig->send;	3878	$sig->send;
2858	}
2859
2860	_post_tick;
2861	},	3879	}
2862	);	3880
		3881	$LOAD = ($NOW - $TICK_START) / $TICK;
		3882	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3883
		3884	if (0) {
		3885	if ($NEXT_TICK) {
		3886	my $jitter = $TICK_START - $NEXT_TICK;
		3887	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3888	warn "jitter $JITTER\n";#d#
		3889	}
		3890	}
		3891	}
2863		3892
2864	{	3893	{
2865	BDB::max_poll_time $TICK * 0.1;	3894	# configure BDB
2866	$BDB_POLL_WATCHER = Event->io (	3895
2867	reentrant => 0,
2868	fd => BDB::poll_fileno,
2869	poll => 'r',
2870	prio => 0,
2871	data => WF_AUTOCANCEL,
2872	cb => \&BDB::poll_cb,
2873	);
2874	BDB::min_parallel 8;	3896	BDB::min_parallel 8;
2875		3897	BDB::max_poll_reqs $TICK * 0.1;
2876	BDB::set_sync_prepare {	3898	$AnyEvent::BDB::WATCHER->priority (1);
2877	my $status;
2878	my $current = $Coro::current;
2879	(
2880	sub {
2881	$status = $!;
2882	$current->ready; undef $current;
2883	},
2884	sub {
2885	Coro::schedule while defined $current;
2886	$! = $status;
2887	},
2888	)
2889	};
2890		3899
2891	unless ($DB_ENV) {	3900	unless ($DB_ENV) {
2892	$DB_ENV = BDB::db_env_create;	3901	$DB_ENV = BDB::db_env_create;
		3902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3903	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3904	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3905	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3906	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2893		3907
2894	cf::sync_job {	3908	cf::sync_job {
2895	eval {	3909	eval {
2896	BDB::db_env_open	3910	BDB::db_env_open
2897	$DB_ENV,	3911	$DB_ENV,
…		…
2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2901	0666;	3915	0666;
2902		3916
2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2904
2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2906	$DB_ENV->set_lk_detect;
2907	};	3918	};
2908		3919
2909	cf::cleanup "db_env_open(db): $@" if $@;	3920	cf::cleanup "db_env_open(db): $@" if $@;
2910	};	3921	};
2911	}	3922	}
		3923
		3924	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3925	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3926	};
		3927	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3928	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3929	};
		3930	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3931	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3932	};
2912	}	3933	}
2913		3934
2914	{	3935	{
		3936	# configure IO::AIO
		3937
2915	IO::AIO::min_parallel 8;	3938	IO::AIO::min_parallel 8;
2916
2917	undef $Coro::AIO::WATCHER;
2918	IO::AIO::max_poll_time $TICK * 0.1;	3939	IO::AIO::max_poll_time $TICK * 0.1;
2919	$AIO_POLL_WATCHER = Event->io (	3940	undef $AnyEvent::AIO::WATCHER;
2920	reentrant => 0,
2921	data => WF_AUTOCANCEL,
2922	fd => IO::AIO::poll_fileno,
2923	poll => 'r',
2924	prio => 6,
2925	cb => \&IO::AIO::poll_cb,
2926	);
2927	}	3941	}
2928		3942
2929	my $_log_backtrace;	3943	my $_log_backtrace;
2930		3944
2931	sub _log_backtrace {	3945	sub _log_backtrace {
…		…
2934	$msg =~ s/\n//;	3948	$msg =~ s/\n//;
2935		3949
2936	# limit the # of concurrent backtraces	3950	# limit the # of concurrent backtraces
2937	if ($_log_backtrace < 2) {	3951	if ($_log_backtrace < 2) {
2938	++$_log_backtrace;	3952	++$_log_backtrace;
		3953	my $perl_bt = Carp::longmess $msg;
2939	async {	3954	async {
		3955	$Coro::current->{desc} = "abt $msg";
		3956
2940	my @bt = fork_call {	3957	my @bt = fork_call {
2941	@addr = map { sprintf "%x", $_ } @addr;	3958	@addr = map { sprintf "%x", $_ } @addr;
2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3959	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3960	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2944	or die "addr2line: $!";	3961	or die "addr2line: $!";
…		…
2952	}	3969	}
2953		3970
2954	@funcs	3971	@funcs
2955	};	3972	};
2956		3973
2957	LOG llevInfo, "[ABT] $msg\n";	3974	LOG llevInfo, "[ABT] $perl_bt\n";
		3975	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2958	LOG llevInfo, "[ABT] $_\n" for @bt;	3976	LOG llevInfo, "[ABT] $_\n" for @bt;
2959	--$_log_backtrace;	3977	--$_log_backtrace;
2960	};	3978	};
2961	} else {	3979	} else {
2962	LOG llevInfo, "[ABT] $msg\n";	3980	LOG llevInfo, "[ABT] $msg\n";
2963	LOG llevInfo, "[ABT] [suppressed]\n";	3981	LOG llevInfo, "[ABT] [suppressed]\n";
2964	}	3982	}
2965	}	3983	}
2966		3984
2967	# load additional modules	3985	# load additional modules
2968	use cf::pod;	3986	require "cf/$_.pm" for @EXTRA_MODULES;
		3987	cf::_connect_to_perl_2;
2969		3988
2970	END { cf::emergency_save }	3989	END { cf::emergency_save }
2971		3990
2972	1	3991	1
2973		3992

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