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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.484 by root, Mon Oct 12 14:00:58 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	warn "starting to write runtime...\n";#d#	567	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		568
380	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		571
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
385	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
386		575
387	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	577	reset_signals;
389	and return;	578	&$cb
		579	}, @args;
390		580
391	close $fh	581	wantarray ? @res : $res[-1]
392	or return;	582	}
393		583
394	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
395	and return;
396		585
397	warn "... done writing runtime.\n";#d#	586	=cut
398		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
399	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
400	}	736	}
401		737
402	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
403		739
404	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.
…		…
416		752
417	#############################################################################	753	#############################################################################
418		754
419	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
420		756
421	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
422	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")
423	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
424		760
425	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>
426	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
427	crossfire+).	763	Deliantra).
428		764
429	=over 4	765	=over 4
430		766
431	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
432		768
…		…
476	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
477		813
478	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
479	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
480		816
481	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
482	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.
483		819
484	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
485		821
486	=over 4	822	=over 4
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
596		932
597	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		937
602	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	939	my $pkg = shift @arg;
604		940
605	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
635	}	971	}
636		972
637	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
638	} else {	974	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	976	}
641		977
642	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
643	}	979	}
644		980
…		…
646	if (ref $_[0]) {	982	if (ref $_[0]) {
647	_object_attach @_;	983	_object_attach @_;
648	} else {	984	} else {
649	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
650	}	986	}
		987	_recalc_want;
651	};	988	};
652		989
653	# all those should be optimised	990	# all those should be optimised
654	sub cf::attachable::detach {	991	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
659	reattach ($obj);	996	reattach ($obj);
660	} else {	997	} else {
661	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
662	}	999	}
		1000	_recalc_want;
663	};	1001	};
664		1002
665	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
667		1005
…		…
682	";	1020	";
683	die if $@;	1021	die if $@;
684	}	1022	}
685		1023
686	our $override;	1024	our $override;
687	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?
688		1026
689	sub override {	1027	sub override {
690	$override = 1;	1028	$override = 1;
691	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
692	}	1030	}
693		1031
694	sub do_invoke {	1032	sub do_invoke {
695	my $event = shift;	1033	my $event = shift;
696	my $callbacks = shift;	1034	my $callbacks = shift;
697		1035
698	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
699		1037
700	local $override;	1038	local $override;
701		1039
702	for (@$callbacks) {	1040	for (@$callbacks) {
703	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
712	}	1050	}
713		1051
714	0	1052	0
715	}	1053	}
716		1054
717	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
718		1056
719	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
720		1058
721	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
722		1060
723	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
724	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
725	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		1064
727	=back	1065	=back
728		1066
729	=cut	1067	=cut
730		1068
731	#############################################################################	1069	#############################################################################
732	# 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, $ob2
		1112	}
733		1113
734	sub reattach {	1114	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	1116	my ($obj) = @_;
737		1117
		1118	# no longer needed after getting rid of delete_package?
738	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
739		1120
740	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
741		1122
742	@$registry = ();	1123	@$registry = ();
743		1124
…		…
758	cf::attachable->attach (	1139	cf::attachable->attach (
759	prio => -1000000,	1140	prio => -1000000,
760	on_instantiate => sub {	1141	on_instantiate => sub {
761	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
762		1143
763	$data = from_json $data;	1144	$data = decode_json $data;
764		1145
765	for (@$data) {	1146	for (@$data) {
766	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
767		1148
768	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
784	sub object_freezer_save {	1165	sub object_freezer_save {
785	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
786		1167
787	sync_job {	1168	sync_job {
788	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
789	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
790	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
791		1173
792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
793	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
795	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	}
796	close $fh;	1181	aio_close $fh;
797		1182
798	if (@$objs) {	1183	if (@$objs) {
799	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) {
800	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
801	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
802	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
803	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	}
804	close $fh;	1192	aio_close $fh;
805	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
806	}	1194	}
807	} else {	1195	} else {
808	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
809	}	1197	}
810		1198
811	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
812	} else {	1203	} else {
813	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
814	}	1205	}
815	} else {	1206	} else {
816	aio_unlink $filename;	1207	aio_unlink $filename;
817	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
818	}	1209	}
819	}	1210	};
820	}	1211	}
821		1212
822	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
823	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
824		1215
…		…
836	or return;	1227	or return;
837		1228
838	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
839	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
840	or return;	1231	or return;
		1232
841	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
842	}	1235	}
843		1236
		1237	utf8::decode (my $decname = $filename);
844	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
846	return ($data, $av);	1241	($data, $av)
847	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
848		1249
849	#############################################################################	1250	#############################################################################
850	# command handling &c	1251	# command handling &c
851		1252
852	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1267	}
867		1268
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1270
870	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.
871		1276
872	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
873	called.	1278	called.
874		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
875	=cut	1291	=cut
876		1292
877	sub register_extcmd {	1293	sub register_extcmd {
878	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
879		1295
880	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
881	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
882		1306
883	cf::player->attach (	1307	cf::player->attach (
884	on_command => sub {	1308	on_command => sub {
885	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
886		1310
…		…
894	cf::override;	1318	cf::override;
895	},	1319	},
896	on_extcmd => sub {	1320	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
898		1322
899	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1324
901	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
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
907	} else {	1340	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1342	}
910		1343
911	cf::override;	1344	cf::override;
912	},	1345	},
913	);	1346	);
914		1347
		1348	# "readahead" all extensions
915	sub load_extension {	1349	sub cache_extensions {
916	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
917		1351
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
919	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
920	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}	1355	}
943	die $@;
944	}	1356	};
945		1357
946	push @EXTS, $pkg;	1358	$grp
947	}	1359	}
948		1360
949	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
950	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1366	next unless -r $path;
952	eval {	1367
953	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	$progress = 1;
954	1	1424	}
955	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
956	}	1430	};
957	}	1431	}
958		1432
959	#############################################################################	1433	#############################################################################
960		1434
		1435	=back
		1436
961	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
962		1438
963	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
964		1440
965	=cut	1441	=cut
966		1442
967	package cf::player;	1443	package cf::player;
968		1444
969	use Coro::AIO;	1445	use Coro::AIO;
970		1446
971	=head3 cf::player	1447	=head3 cf::player
972		1448
973	=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	}
974		1464
975	=item cf::player::find $login	1465	=item cf::player::find $login
976		1466
977	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
978		1468
…		…
997		1487
998	sub exists($) {	1488	sub exists($) {
999	my ($login) = @_;	1489	my ($login) = @_;
1000		1490
1001	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1002	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1003	}	1493	}
1004		1494
1005	sub find($) {	1495	sub find($) {
1006	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1007	my $login = $_[0];	1497	my $login = $_[0];
…		…
1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1018		1508
1019	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1020	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;
1021	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1022	}	1518	}
1023	}	1519	}
1024	}	1520	}
1025		1521
…		…
1034	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1035		1531
1036	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1037	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1038		1534
		1535	cf::get_slot 0.01;
		1536
1039	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1040	Coro::cede;	1538	cf::cede_to_tick;
1041	}	1539	}
1042		1540
1043	sub new($) {	1541	sub new($) {
1044	my ($login) = @_;	1542	my ($login) = @_;
1045		1543
…		…
1051	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1052		1550
1053	$self	1551	$self
1054	}	1552	}
1055		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
1056	=item $pl->quit_character	1564	=item $pl->quit_character
1057		1565
1058	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1059	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1060		1568
…		…
1064	my ($pl) = @_;	1572	my ($pl) = @_;
1065		1573
1066	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1067		1575
1068	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1069	$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
1070		1578
1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1072	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1074	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1075		1585
1076	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1077	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1113	or return [];	1623	or return [];
1114		1624
1115	my @logins;	1625	my @logins;
1116		1626
1117	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") {
1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1119	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1120	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1121		1637
1122	utf8::decode $login;	1638	utf8::decode $login;
1123	push @logins, $login;	1639	push @logins, $login;
1124	}	1640	}
1125		1641
…		…
1152	}	1668	}
1153		1669
1154	\@paths	1670	\@paths
1155	}	1671	}
1156		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1157	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1158		1678
1159	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1160		1680
1161	=cut	1681	=cut
1162		1682
1163	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1165		1685
1166	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1687	}
1170		1688
1171	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1172		1690
1173	Sends an ext event to the client.	1691	Sends an ext event to the client.
1174		1692
1175	=cut	1693	=cut
1176		1694
1177	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1179		1697
1180	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1181	}	1699	}
1182		1700
1183	=head3 cf::region	1701	=head3 cf::region
1184		1702
1185	=over 4	1703	=over 4
…		…
1188		1706
1189	package cf::region;	1707	package cf::region;
1190		1708
1191	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1192		1710
1193	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1194		1712
1195	=cut	1713	=cut
1196		1714
1197	sub find_by_path($) {	1715	sub find_by_path($) {
1198	my ($path) = @_;	1716	my ($path) = @_;
1199		1717
1200	my ($match, $specificity);	1718	my ($match, $specificity);
1201		1719
1202	for my $region (list) {	1720	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1206	}	1724	}
1207	}	1725	}
1208		1726
…		…
1229	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1230	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1231		1749
1232	sub generate_random_map {	1750	sub generate_random_map {
1233	my ($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
1234	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1235	$self->_create_random_map (	1756	$self->_create_random_map (
1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1272	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1273		1794
1274	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1275	local $self->{path};	1796	local $self->{path};
1276	local $self->{load_path};	1797	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1798
1280	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1281	}	1800	}
1282		1801
1283	sub normalise {	1802	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1331	return $self;	1850	return $self;
1332	}	1851	}
1333	}	1852	}
1334		1853
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1855	()
1337	}	1856	}
1338		1857
1339	sub init {	1858	sub init {
1340	my ($self) = @_;	1859	my ($self) = @_;
…		…
1362		1881
1363	# the temporary/swap location	1882	# the temporary/swap location
1364	sub save_path {	1883	sub save_path {
1365	my ($self) = @_;	1884	my ($self) = @_;
1366		1885
1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1368	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1369	}	1888	}
1370		1889
1371	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1372	sub uniq_path {	1891	sub uniq_path {
1373	my ($self) = @_;	1892	my ($self) = @_;
1374		1893
1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1376	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1377	}	1896	}
1378		1897
1379	# and all this just because we cannot iterate over	1898	sub decay_objects {
1380	# all maps in C++...
1381	sub change_all_map_light {
1382	my ($change) = @_;	1899	my ($self) = @_;
1383		1900
1384	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1385	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1386	}	1904	}
1387		1905
1388	sub unlink_save {	1906	sub unlink_save {
1389	my ($self) = @_;	1907	my ($self) = @_;
1390		1908
…		…
1395		1913
1396	sub load_header_from($) {	1914	sub load_header_from($) {
1397	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1398		1916
1399	utf8::encode $path;	1917	utf8::encode $path;
1400	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1401	# or return;
1402
1403	$self->_load_header ($path)
1404	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;
1405		1926
1406	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1407		1928
1408	1	1929	1
1409	}	1930	}
…		…
1448	$self->load_header_orig	1969	$self->load_header_orig
1449	or return;	1970	or return;
1450	$self->prepare_orig;	1971	$self->prepare_orig;
1451	}	1972	}
1452		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1453	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1978	unless $self->default_region;
1455		1979
1456	1	1980	1
1457	}	1981	}
…		…
1460	sub find {	1984	sub find {
1461	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1462		1986
1463	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1464		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1465	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1466		1991
1467	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1468	my $guard = cf::lock_acquire "map_find:$path";
1469	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1470	or return;	1994	or return;
1471		1995
1472	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1473		1997
1474	$map->load_header	1998	$map->load_header
1475	or return;	1999	or return;
1476		2000
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1480	$map->reset;	2006	$map->reset;
1481	undef $guard;
1482	return find $path;	2007	return find $path;
1483	}	2008	}
1484		2009
1485	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1486	}	2011	}
…		…
1495	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1496		2021
1497	my $path = $self->{path};	2022	my $path = $self->{path};
1498		2023
1499	{	2024	{
1500	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1501		2026
		2027	return unless $self->valid;
1502	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1503		2029
1504	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1505		2031
1506	$self->alloc;	2032	$self->alloc;
1507		2033
1508	$self->pre_load;	2034	$self->pre_load;
1509	Coro::cede;	2035	cf::cede_to_tick;
1510		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1511	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1512	or return;	2040	or return;
1513		2041
1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1515	if delete $self->{load_original};	2043	if delete $self->{load_original};
1516		2044
1517	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1518	utf8::encode $uniq;	2046	utf8::encode $uniq;
1519	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1520	$self->clear_unique_items;	2049	$self->clear_unique_items;
1521	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1522	}	2053	}
1523	}	2054	}
1524		2055
1525	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1526	# now do the right thing for maps	2059	# now do the right thing for maps
1527	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1528	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1529	unless $self->difficulty;	2062	unless $self->difficulty;
1530	Coro::cede;	2063	cf::cede_to_tick;
1531		2064
1532	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1533	$self->decay_objects;	2066	$self->decay_objects;
1534	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1535	$self->update_buttons;	2068	$self->update_buttons;
1536	Coro::cede;	2069	cf::cede_to_tick;
1537	$self->set_darkness_map;
1538	Coro::cede;
1539	$self->activate;	2070	$self->activate;
1540	}	2071	}
1541		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1542	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1543	}	2077	}
1544		2078
1545	$self->post_load;	2079	$self->post_load;
1546	}	2080	}
1547		2081
…		…
1549	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1550		2084
1551	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	2086	if $self->per_player;
1553		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1554	$self	2091	$self
1555	}	2092	}
1556		2093
1557	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	2095	sub load_neighbours {
1559	my ($map) = @_;	2096	my ($map) = @_;
1560		2097
1561	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1562		2099
1563	for (0 .. 3) {	2100	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1565	or next;	2102	or next;
1566	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1567	or next;	2104	or next;
1568	$neigh->load;	2105	$neigh->load;
1569		2106
		2107	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	2110	}
1573		2111
1574	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1576	or next;	2115	or next;
1577	$neigh->load;	2116	$neigh->load;
1578	}	2117	}
1579	}	2118	}
1580		2119
…		…
1585	}	2124	}
1586		2125
1587	sub do_load_sync {	2126	sub do_load_sync {
1588	my ($map) = @_;	2127	my ($map) = @_;
1589		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1590	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1591	}	2133	}
1592		2134
1593	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1595		2137
1596	sub find_async {	2138	sub find_async {
1597	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1598		2140
1599	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1600		2142
1601	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1603	}	2145	}
1604		2146
1605	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1606	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1607	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	2154	if (my $map = find $k) {
1610	or next;
1611	$map->load;	2155	$map->load if $v;
		2156	}
1612		2157
1613	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1614	}	2159	}
1615	}	2160	}
1616	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1617	};	2162	};
1618	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1621	}	2166	}
1622		2167
1623	sub save {	2168	sub save {
1624	my ($self) = @_;	2169	my ($self) = @_;
1625		2170
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1627		2172
1628	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1629		2174
1630	return unless $self->dirty;	2175	return unless $self->dirty;
1631		2176
…		…
1637	return if $self->{deny_save};	2182	return if $self->{deny_save};
1638		2183
1639	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1640		2185
1641	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1642	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1643	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1644		2192
1645	if ($uniq) {	2193	if ($uniq) {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1648	} else {	2196	} else {
…		…
1654	my ($self) = @_;	2202	my ($self) = @_;
1655		2203
1656	# save first because save cedes	2204	# save first because save cedes
1657	$self->save;	2205	$self->save;
1658		2206
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2208
1661	return if $self->players;	2209	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1663	return if $self->{deny_save};	2211	return if $self->{deny_save};
1664		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1665	$self->clear;	2217	$self->clear;
1666	$self->in_memory (cf::MAP_SWAPPED);
1667	}	2218	}
1668		2219
1669	sub reset_at {	2220	sub reset_at {
1670	my ($self) = @_;	2221	my ($self) = @_;
1671		2222
1672	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1675		2225
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2228
…		…
1689	my ($self) = @_;	2239	my ($self) = @_;
1690		2240
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2242
1693	return if $self->players;	2243	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2244
1696	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1697		2246
1698	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1699		2248
1700	# need to save uniques path	2249	# need to save uniques path
1701	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1705	if $uniq;	2254	if $uniq;
1706	}	2255	}
1707		2256
1708	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1709		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2261	$self->clear;
1711
1712	$_->clear_links_to ($self) for values %cf::MAP;
1713		2262
1714	$self->unlink_save;	2263	$self->unlink_save;
1715	$self->destroy;	2264	$self->destroy;
1716	}	2265	}
1717		2266
1718	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1719		2268
1720	sub nuke {	2269	sub nuke {
1721	my ($self) = @_;	2270	my ($self) = @_;
1722		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1723	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1724		2276
1725	$self->unlink_save;	2277	$self->unlink_save;
1726		2278
1727	bless $self, "cf::map";	2279	bless $self, "cf::map";
1728	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1729	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1730	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1732		2284
1733	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1734		2287
1735	$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	]
1736	}	2325	}
1737		2326
1738	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1739		2328
1740	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2330	instantiated unique items. May block.
1742		2331
1743	=cut	2332	=cut
1744		2333
1745	sub unique_maps() {	2334	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2335	[
1747	or return;	2336	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2337	utf8::decode $_;
1753	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1754	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1755		2340	? ()
1756	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2343	]
1758
1759	\@paths
1760	}	2344	}
1761
1762	package cf;
1763		2345
1764	=back	2346	=back
1765		2347
1766	=head3 cf::object	2348	=head3 cf::object
1767		2349
…		…
1771		2353
1772	=over 4	2354	=over 4
1773		2355
1774	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1775		2357
1776	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.
1777		2360
1778	=cut	2361	=cut
1779		2362
1780	sub inv_recursive_;	2363	sub inv_recursive_;
1781	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1784		2367
1785	sub inv_recursive {	2368	sub inv_recursive {
1786	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1787	}	2370	}
1788		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
1789	package cf;	2400	package cf;
1790		2401
1791	=back	2402	=back
1792		2403
1793	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1799	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>
1800	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
1801	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1802		2413
1803	=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	};
1804		2429
1805	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1806	# with dialog boxes.	2431	# with dialog boxes.
1807	#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
1808	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1810		2435
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2437
1813	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1815	} 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 {
1816	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1818	}	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 (@_);
1819	}	2463	}
1820		2464
1821	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1822		2466
1823	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1836		2480
1837	=item $player_object->enter_link	2481	=item $player_object->enter_link
1838		2482
1839	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}>).
1840		2484
1841	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.
1842	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.
1843		2489
1844	Will never block.	2490	Will never block.
1845		2491
1846	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1847		2493
…		…
1870	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1871		2517
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2519
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1876		2522
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1878	}	2524	}
1879		2525
1880	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1882		2530
1883	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1884		2532
1885	unless ($map) {	2533	unless ($map) {
1886	# restore original map position	2534	# restore original map position
…		…
1900	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1903		2551
1904	$map->load;	2552	$map->load;
1905	$map->load_diag;	2553	$map->load_neighbours;
1906		2554
1907	return unless $self->contr->active;	2555	return unless $self->contr->active;
1908	$self->activate_recursive;
1909		2556
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2558	$self->enter_map ($map, $x, $y);
1912	}
1913		2559
1914	cf::player->attach (	2560	# only activate afterwards, to support waiting in hooks
1915	on_logout => sub {	2561	$self->activate_recursive;
1916	my ($pl) = @_;	2562	}
1917		2563
1918	# abort map switching before logout	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2565
1928	# try to abort aborted map switching on player login :)	2566	Moves the player to the given map-path and coordinates by first freezing
1929	# should happen only on crashes	2567	her, loading and preparing them map, calling the provided $check callback
1930	if ($pl->ob->{_link_pos}) {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1931	$pl->ob->enter_link;	2569	the new (success) or old (failed) map position. In either case, $done will
1932	(async {	2570	be called at the end of this process.
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945		2571
1946	=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 >>.
1947		2574
1948	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1949		2578
1950	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1951	my ($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;
1952		2584
1953	$self->enter_link;	2585	$self->enter_link;
1954		2586
1955	(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
1956	my $map = eval {	2609	my $map = eval {
1957	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1958	$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
1959	$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 $@;
1960	} or	2625	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1964	})->prio (1);	2633	})->prio (1);
1965	}	2634	}
1966		2635
1967	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1968		2637
…		…
1988	}	2657	}
1989		2658
1990	sub prepare_random_map {	2659	sub prepare_random_map {
1991	my ($exit) = @_;	2660	my ($exit) = @_;
1992		2661
1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1994
1995	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1996	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1997	# that depends on the exit object	2664	# that depends on the exit object
1998		2665
1999	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
2001	if ($exit->map) {	2668	if ($exit->map) {
2002	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
2003	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
2004	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
2005	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
2006	}	2675	}
2007		2676
2008	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
2009		2678
2010	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2011	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
2012	my $meta = "$RANDOMDIR/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
2013		2682
2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2015	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
2016	undef $fh;	2685	undef $fh;
2017	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
2018		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
2019	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
2020	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
2021	}	2694	}
2022	}	2695	}
2023		2696
2024	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
2025	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
2026		2699
2027	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
2028		2701
2029	if ($exit->slaying eq "/!") {
2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
2031	# the problem is that $exit might not survive long enough
2032	# so it needs to be done right now, right here
2033	cf::sync_job { prepare_random_map $exit };
2034	}
2035
2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2037	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;
2039
2040	$self->enter_link;	2702	$self->enter_link;
2041		2703
2042	(async {	2704	(async {
2043	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
2044	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
2045	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
2046		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
2047	1;	2728	1
2048	}) {	2729	}) {
2049	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
2050	. "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. "
2051	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
2052	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
2053		2734
2054	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
…		…
2073		2754
2074	utf8::encode $text;	2755	utf8::encode $text;
2075	$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);
2076	}	2757	}
2077		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
2078	=item $client->ext_event ($type, %msg)	2919	=item $client->ext_msg ($type, @msg)
2079		2920
2080	Sends an exti event to the client.	2921	Sends an ext event to the client.
2081		2922
2082	=cut	2923	=cut
2083		2924
2084	sub cf::client::ext_event($$%) {	2925	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	2926	my ($self, $type, @msg) = @_;
2086		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2930	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	2931	push @msg, msgtype => "event_$type";
2088	$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	}
2089	}	2952	}
2090		2953
2091	=item $success = $client->query ($flags, "text", \&cb)	2954	=item $success = $client->query ($flags, "text", \&cb)
2092		2955
2093	Queues a query to the client, calling the given callback with	2956	Queues a query to the client, calling the given callback with
2094	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>,
2095	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>.
2096		2959
2097	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
2098	reliable at some point in the future.	2961	become reliable at some point in the future.
2099		2962
2100	=cut	2963	=cut
2101		2964
2102	sub cf::client::query {	2965	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2966	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2974	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2975	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2976
2114	$self->send_packet ($self->{query_queue}[0][0])	2977	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2978	if @{ $self->{query_queue} } == 1;
		2979
		2980	1
2116	}	2981	}
2117		2982
2118	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	},
2119	on_reply => sub {	2989	on_reply => sub {
2120	my ($ns, $msg) = @_;	2990	my ($ns, $msg) = @_;
2121		2991
2122	# this weird shuffling is so that direct followup queries	2992	# this weird shuffling is so that direct followup queries
2123	# get handled first	2993	# get handled first
…		…
2135	} else {	3005	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3006	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	3007	}
2138	}	3008	}
2139	},	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	},
2140	);	3036	);
2141		3037
2142	=item $client->async (\&cb)	3038	=item $client->async (\&cb)
2143		3039
2144	Create a new coroutine, running the specified callback. The coroutine will	3040	Create a new coroutine, running the specified callback. The coroutine will
…		…
2185	our $safe = new Safe "safe";	3081	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	3082	our $safe_hole = new Safe::Hole;
2187		3083
2188	$SIG{FPE} = 'IGNORE';	3084	$SIG{FPE} = 'IGNORE';
2189		3085
2190	$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	));
2191		3091
2192	# here we export the classes and methods available to script code	3092	# here we export the classes and methods available to script code
2193		3093
2194	=pod	3094	=pod
2195		3095
2196	The following functions and methods are available within a safe environment:	3096	The following functions and methods are available within a safe environment:
2197		3097
2198	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
2199	cf::object::player player	3103	cf::object::player
2200	cf::player peaceful	3104	player
2201	cf::map trigger	3105
		3106	cf::player
		3107	peaceful
		3108
		3109	cf::map
		3110	trigger
2202		3111
2203	=cut	3112	=cut
2204		3113
2205	for (	3114	for (
2206	["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)],
2207	["cf::object::player" => qw(player)],	3118	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	3119	["cf::player" => qw(peaceful send_msg)],
2209	["cf::map" => qw(trigger)],	3120	["cf::map" => qw(trigger)],
2210	) {	3121	) {
2211	no strict 'refs';	3122	no strict 'refs';
2212	my ($pkg, @funs) = @$_;	3123	my ($pkg, @funs) = @$_;
2213	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2230	my ($code, %vars) = @_;	3141	my ($code, %vars) = @_;
2231		3142
2232	my $qcode = $code;	3143	my $qcode = $code;
2233	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3144	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2234	$qcode =~ s/\n/\\n/g;	3145	$qcode =~ s/\n/\\n/g;
		3146
		3147	%vars = (_dummy => 0) unless %vars;
2235		3148
2236	local $_;	3149	local $_;
2237	local @safe::cf::_safe_eval_args = values %vars;	3150	local @safe::cf::_safe_eval_args = values %vars;
2238		3151
2239	my $eval =	3152	my $eval =
…		…
2282	=back	3195	=back
2283		3196
2284	=cut	3197	=cut
2285		3198
2286	#############################################################################	3199	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	3200	# the server's init and main functions
2462		3201
2463	sub load_facedata($) {	3202	sub load_facedata($) {
2464	my ($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;
2465		3210
2466	warn "loading facedata from $path\n";	3211	warn "loading facedata from $path\n";
2467		3212
2468	my $facedata;	3213	my $facedata;
2469	0 < aio_load $path, $facedata	3214	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	3217	$facedata = Coro::Storable::thaw $facedata;
2473		3218
2474	$facedata->{version} == 2	3219	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	3220	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		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
2477	{	3229	{
2478	my $faces = $facedata->{faceinfo};	3230	my $faces = $facedata->{faceinfo};
2479		3231
2480	while (my ($face, $info) = each %$faces) {	3232	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3233	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3234
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3235	cf::face::set_visibility $idx, $info->{visibility};
		3236	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3237	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3238	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2485	Coro::cede;	3239
		3240	cf::cede_to_tick;
2486	}	3241	}
2487		3242
2488	while (my ($face, $info) = each %$faces) {	3243	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	3244	next unless $info->{smooth};
		3245
2490	my $idx = cf::face::find $face	3246	my $idx = cf::face::find $face
2491	or next;	3247	or next;
		3248
2492	if (my $smooth = cf::face::find $info->{smooth}) {	3249	if (my $smooth = cf::face::find $info->{smooth}) {
		3250	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3251	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	3252	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	3253	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	3254	}
2497	Coro::cede;	3255
		3256	cf::cede_to_tick;
2498	}	3257	}
2499	}	3258	}
2500		3259
2501	{	3260	{
2502	my $anims = $facedata->{animinfo};	3261	my $anims = $facedata->{animinfo};
2503		3262
2504	while (my ($anim, $info) = each %$anims) {	3263	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	3264	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	3265	cf::cede_to_tick;
2507	}	3266	}
2508		3267
2509	cf::anim::invalidate_all; # d'oh	3268	cf::anim::invalidate_all; # d'oh
2510	}	3269	}
2511		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
2512	1	3306	1
2513	}	3307	}
2514		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	$status
		3345	}
		3346
2515	sub reload_regions {	3347	sub reload_regions {
		3348	# HACK to clear player env face cache, we need some signal framework
		3349	# for this (global event?)
		3350	%ext::player_env::MUSIC_FACE_CACHE = ();
		3351
2516	load_resource_file "$MAPDIR/regions"	3352	load_resource_file "$MAPDIR/regions"
2517	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 $_->{match};
		3358	}
2518	}	3359	}
2519		3360
2520	sub reload_facedata {	3361	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	3362	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	3363	or die "unable to load facedata\n";
…		…
2533	}	3374	}
2534		3375
2535	sub reload_resources {	3376	sub reload_resources {
2536	warn "reloading resource files...\n";	3377	warn "reloading resource files...\n";
2537		3378
2538	reload_regions;
2539	reload_facedata;	3379	reload_facedata;
2540	reload_archetypes;	3380	reload_archetypes;
		3381	reload_regions;
2541	reload_treasures;	3382	reload_treasures;
2542		3383
2543	warn "finished reloading resource files\n";	3384	warn "finished reloading resource files\n";
2544	}	3385	}
2545		3386
2546	sub init {	3387	sub reload_config {
2547	reload_resources;
2548	}
2549
2550	sub cfg_load {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3388	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3389	or return;
2553		3390
2554	local $/;	3391	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3392	*CFG = YAML::XS::Load <$fh>;
2556		3393
2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3394	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2558		3395
2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3396	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3397	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2566	};	3403	};
2567	warn $@ if $@;	3404	warn $@ if $@;
2568	}	3405	}
2569	}	3406	}
2570		3407
		3408	sub pidfile() {
		3409	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3410	or die "$PIDFILE: $!";
		3411	flock $fh, &Fcntl::LOCK_EX
		3412	or die "$PIDFILE: flock: $!";
		3413	$fh
		3414	}
		3415
		3416	# make sure only one server instance is running at any one time
		3417	sub atomic {
		3418	my $fh = pidfile;
		3419
		3420	my $pid = <$fh>;
		3421	kill 9, $pid if $pid > 0;
		3422
		3423	seek $fh, 0, 0;
		3424	print $fh $$;
		3425	}
		3426
		3427	sub main_loop {
		3428	warn "EV::loop starting\n";
		3429	if (1) {
		3430	EV::loop;
		3431	}
		3432	warn "EV::loop returned\n";
		3433	goto &main_loop unless $REALLY_UNLOOP;
		3434	}
		3435
2571	sub main {	3436	sub main {
		3437	cf::init_globals; # initialise logging
		3438
		3439	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3440	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3441	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3442	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3443
		3444	cf::init_experience;
		3445	cf::init_anim;
		3446	cf::init_attackmess;
		3447	cf::init_dynamic;
		3448
		3449	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3450
2572	# we must not ever block the main coroutine	3451	# we must not ever block the main coroutine
2573	local $Coro::idle = sub {	3452	local $Coro::idle = sub {
2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3453	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2575	(async {	3454	(async {
2576	Event::one_event;	3455	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3456	EV::loop EV::LOOP_ONESHOT;
2577	})->prio (Coro::PRIO_MAX);	3457	})->prio (Coro::PRIO_MAX);
2578	};	3458	};
2579		3459
2580	cfg_load;	3460	evthread_start IO::AIO::poll_fileno;
		3461
		3462	cf::sync_job {
		3463	reload_resources;
		3464	reload_config;
2581	db_init;	3465	db_init;
		3466
		3467	cf::load_settings;
		3468	cf::load_materials;
		3469	cf::init_uuid;
		3470	cf::init_signals;
		3471	cf::init_commands;
		3472	cf::init_skills;
		3473
		3474	cf::init_beforeplay;
		3475
		3476	atomic;
		3477
2582	load_extensions;	3478	load_extensions;
2583		3479
2584	$TICK_WATCHER->start;	3480	utime time, time, $RUNTIMEFILE;
2585	Event::loop;	3481
		3482	# no (long-running) fork's whatsoever before this point(!)
		3483	use POSIX ();
		3484	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3485
		3486	(pop @POST_INIT)->(0) while @POST_INIT;
		3487	};
		3488
		3489	main_loop;
2586	}	3490	}
2587		3491
2588	#############################################################################	3492	#############################################################################
2589	# initialisation and cleanup	3493	# initialisation and cleanup
2590		3494
2591	# install some emergency cleanup handlers	3495	# install some emergency cleanup handlers
2592	BEGIN {	3496	BEGIN {
		3497	our %SIGWATCHER = ();
2593	for my $signal (qw(INT HUP TERM)) {	3498	for my $signal (qw(INT HUP TERM)) {
2594	Event->signal (	3499	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2595	reentrant => 0,
2596	data => WF_AUTOCANCEL,
2597	signal => $signal,
2598	prio => 0,
2599	cb => sub {
2600	cf::cleanup "SIG$signal";	3500	cf::cleanup "SIG$signal";
2601	},
2602	);	3501	};
		3502	}
		3503	}
		3504
		3505	sub write_runtime_sync {
		3506	# first touch the runtime file to show we are still running:
		3507	# the fsync below can take a very very long time.
		3508
		3509	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3510
		3511	my $guard = cf::lock_acquire "write_runtime";
		3512
		3513	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3514	or return;
		3515
		3516	my $value = $cf::RUNTIME + 90 + 10;
		3517	# 10 is the runtime save interval, for a monotonic clock
		3518	# 60 allows for the watchdog to kill the server.
		3519
		3520	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3521	and return;
		3522
		3523	# always fsync - this file is important
		3524	aio_fsync $fh
		3525	and return;
		3526
		3527	# touch it again to show we are up-to-date
		3528	aio_utime $fh, undef, undef;
		3529
		3530	close $fh
		3531	or return;
		3532
		3533	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3534	and return;
		3535
		3536	warn "runtime file written.\n";
		3537
2603	}	3538	1
		3539	}
		3540
		3541	our $uuid_lock;
		3542	our $uuid_skip;
		3543
		3544	sub write_uuid_sync($) {
		3545	$uuid_skip ||= $_[0];
		3546
		3547	return if $uuid_lock;
		3548	local $uuid_lock = 1;
		3549
		3550	my $uuid = "$LOCALDIR/uuid";
		3551
		3552	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3553	or return;
		3554
		3555	my $value = uuid_seq uuid_cur;
		3556
		3557	unless ($value) {
		3558	warn "cowardly refusing to write zero uuid value!\n";
		3559	return;
		3560	}
		3561
		3562	my $value = uuid_str $value + $uuid_skip;
		3563	$uuid_skip = 0;
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	close $fh
		3573	or return;
		3574
		3575	aio_rename "$uuid~", $uuid
		3576	and return;
		3577
		3578	warn "uuid file written ($value).\n";
		3579
		3580	1
		3581
		3582	}
		3583
		3584	sub write_uuid($$) {
		3585	my ($skip, $sync) = @_;
		3586
		3587	$sync ? write_uuid_sync $skip
		3588	: async { write_uuid_sync $skip };
2604	}	3589	}
2605		3590
2606	sub emergency_save() {	3591	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3592	my $freeze_guard = cf::freeze_mainloop;
2608		3593
2609	warn "enter emergency perl save\n";	3594	warn "emergency_perl_save: enter\n";
2610		3595
2611	cf::sync_job {	3596	cf::sync_job {
		3597	# this is a trade-off: we want to be very quick here, so
		3598	# save all maps without fsync, and later call a global sync
		3599	# (which in turn might be very very slow)
		3600	local $USE_FSYNC = 0;
		3601
2612	# use a peculiar iteration method to avoid tripping on perl	3602	# use a peculiar iteration method to avoid tripping on perl
2613	# refcount bugs in for. also avoids problems with players	3603	# refcount bugs in for. also avoids problems with players
2614	# and maps saved/destroyed asynchronously.	3604	# and maps saved/destroyed asynchronously.
2615	warn "begin emergency player save\n";	3605	warn "emergency_perl_save: begin player save\n";
2616	for my $login (keys %cf::PLAYER) {	3606	for my $login (keys %cf::PLAYER) {
2617	my $pl = $cf::PLAYER{$login} or next;	3607	my $pl = $cf::PLAYER{$login} or next;
2618	$pl->valid or next;	3608	$pl->valid or next;
		3609	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2619	$pl->save;	3610	$pl->save;
2620	}	3611	}
2621	warn "end emergency player save\n";	3612	warn "emergency_perl_save: end player save\n";
2622		3613
2623	warn "begin emergency map save\n";	3614	warn "emergency_perl_save: begin map save\n";
2624	for my $path (keys %cf::MAP) {	3615	for my $path (keys %cf::MAP) {
2625	my $map = $cf::MAP{$path} or next;	3616	my $map = $cf::MAP{$path} or next;
2626	$map->valid or next;	3617	$map->valid or next;
2627	$map->save;	3618	$map->save;
2628	}	3619	}
2629	warn "end emergency map save\n";	3620	warn "emergency_perl_save: end map save\n";
2630		3621
2631	warn "begin emergency database checkpoint\n";	3622	warn "emergency_perl_save: begin database checkpoint\n";
2632	BDB::db_env_txn_checkpoint $DB_ENV;	3623	BDB::db_env_txn_checkpoint $DB_ENV;
2633	warn "end emergency database checkpoint\n";	3624	warn "emergency_perl_save: end database checkpoint\n";
		3625
		3626	warn "emergency_perl_save: begin write uuid\n";
		3627	write_uuid_sync 1;
		3628	warn "emergency_perl_save: end write uuid\n";
2634	};	3629	};
2635		3630
		3631	warn "emergency_perl_save: starting sync()\n";
		3632	IO::AIO::aio_sync sub {
		3633	warn "emergency_perl_save: finished sync()\n";
		3634	};
		3635
2636	warn "leave emergency perl save\n";	3636	warn "emergency_perl_save: leave\n";
2637	}	3637	}
2638		3638
2639	sub post_cleanup {	3639	sub post_cleanup {
2640	my ($make_core) = @_;	3640	my ($make_core) = @_;
2641		3641
2642	warn Carp::longmess "post_cleanup backtrace"	3642	warn Carp::longmess "post_cleanup backtrace"
2643	if $make_core;	3643	if $make_core;
		3644
		3645	my $fh = pidfile;
		3646	unlink $PIDFILE if <$fh> == $$;
		3647	}
		3648
		3649	# a safer delete_package, copied from Symbol
		3650	sub clear_package($) {
		3651	my $pkg = shift;
		3652
		3653	# expand to full symbol table name if needed
		3654	unless ($pkg =~ /^main::.*::$/) {
		3655	$pkg = "main$pkg" if $pkg =~ /^::/;
		3656	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3657	$pkg .= '::' unless $pkg =~ /::$/;
		3658	}
		3659
		3660	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3661	my $stem_symtab = *{$stem}{HASH};
		3662
		3663	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3664	or return;
		3665
		3666	# clear all symbols
		3667	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3668	for my $name (keys %$leaf_symtab) {
		3669	_gv_clear *{"$pkg$name"};
		3670	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3671	}
		3672	warn "cleared package $pkg\n";#d#
2644	}	3673	}
2645		3674
2646	sub do_reload_perl() {	3675	sub do_reload_perl() {
2647	# can/must only be called in main	3676	# can/must only be called in main
2648	if ($Coro::current != $Coro::main) {	3677	if ($Coro::current != $Coro::main) {
2649	warn "can only reload from main coroutine";	3678	warn "can only reload from main coroutine";
2650	return;	3679	return;
2651	}	3680	}
2652		3681
		3682	return if $RELOAD++;
		3683
		3684	my $t1 = EV::time;
		3685
		3686	while ($RELOAD) {
2653	warn "reloading...";	3687	warn "reloading...";
2654		3688
2655	warn "entering sync_job";	3689	warn "entering sync_job";
2656		3690
2657	cf::sync_job {	3691	cf::sync_job {
2658	cf::write_runtime; # external watchdog should not bark	3692	cf::write_runtime_sync; # external watchdog should not bark
2659	cf::emergency_save;	3693	cf::emergency_save;
2660	cf::write_runtime; # external watchdog should not bark	3694	cf::write_runtime_sync; # external watchdog should not bark
2661		3695
2662	warn "syncing database to disk";	3696	warn "syncing database to disk";
2663	BDB::db_env_txn_checkpoint $DB_ENV;	3697	BDB::db_env_txn_checkpoint $DB_ENV;
2664		3698
2665	# if anything goes wrong in here, we should simply crash as we already saved	3699	# if anything goes wrong in here, we should simply crash as we already saved
2666		3700
2667	warn "cancelling all WF_AUTOCANCEL watchers";
2668	for (Event::all_watchers) {
2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2670	}
2671
2672	warn "flushing outstanding aio requests";	3701	warn "flushing outstanding aio requests";
2673	for (;;) {
2674	BDB::flush;
2675	IO::AIO::flush;
2676	Coro::cede;
2677	last unless IO::AIO::nreqs || BDB::nreqs;	3702	while (IO::AIO::nreqs || BDB::nreqs) {
2678	warn "iterate...";	3703	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2679	}
2680
2681	++$RELOAD;
2682
2683	warn "cancelling all extension coros";
2684	$_->cancel for values %EXT_CORO;
2685	%EXT_CORO = ();
2686
2687	warn "removing commands";
2688	%COMMAND = ();
2689
2690	warn "removing ext commands";
2691	%EXTCMD = ();
2692
2693	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";
2696
2697	if (my $cb = $pkg->can ("unload")) {
2698	eval {
2699	$cb->($pkg);
2700	1
2701	} or warn "$pkg unloaded, but with errors: $@";
2702	}	3704	}
2703		3705
2704	warn "... nuking $pkg";	3706	warn "cancelling all extension coros";
2705	Symbol::delete_package $pkg;	3707	$_->cancel for values %EXT_CORO;
2706	}	3708	%EXT_CORO = ();
2707		3709
2708	warn "unloading all perl modules loaded from $LIBDIR";	3710	warn "removing commands";
2709	while (my ($k, $v) = each %INC) {	3711	%COMMAND = ();
2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2711		3712
		3713	warn "removing ext/exti commands";
		3714	%EXTCMD = ();
		3715	%EXTICMD = ();
		3716
		3717	warn "unloading/nuking all extensions";
		3718	for my $pkg (@EXTS) {
2712	warn "... unloading $k";	3719	warn "... unloading $pkg";
2713	delete $INC{$k};
2714		3720
2715	$k =~ s/\.pm$//;
2716	$k =~ s/\//::/g;
2717
2718	if (my $cb = $k->can ("unload_module")) {	3721	if (my $cb = $pkg->can ("unload")) {
		3722	eval {
2719	$cb->();	3723	$cb->($pkg);
		3724	1
		3725	} or warn "$pkg unloaded, but with errors: $@";
		3726	}
		3727
		3728	warn "... clearing $pkg";
		3729	clear_package $pkg;
2720	}	3730	}
2721		3731
2722	Symbol::delete_package $k;	3732	warn "unloading all perl modules loaded from $LIBDIR";
		3733	while (my ($k, $v) = each %INC) {
		3734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3735
		3736	warn "... unloading $k";
		3737	delete $INC{$k};
		3738
		3739	$k =~ s/\.pm$//;
		3740	$k =~ s/\//::/g;
		3741
		3742	if (my $cb = $k->can ("unload_module")) {
		3743	$cb->();
		3744	}
		3745
		3746	clear_package $k;
2723	}	3747	}
2724		3748
2725	warn "getting rid of safe::, as good as possible";	3749	warn "getting rid of safe::, as good as possible";
2726	Symbol::delete_package "safe::$_"	3750	clear_package "safe::$_"
2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2728		3752
2729	warn "unloading cf.pm \"a bit\"";	3753	warn "unloading cf.pm \"a bit\"";
2730	delete $INC{"cf.pm"};	3754	delete $INC{"cf.pm"};
2731	delete $INC{"cf/pod.pm"};	3755	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2732		3756
2733	# don't, removes xs symbols, too,	3757	# don't, removes xs symbols, too,
2734	# and global variables created in xs	3758	# and global variables created in xs
2735	#Symbol::delete_package __PACKAGE__;	3759	#clear_package __PACKAGE__;
2736		3760
2737	warn "unload completed, starting to reload now";	3761	warn "unload completed, starting to reload now";
2738		3762
2739	warn "reloading cf.pm";	3763	warn "reloading cf.pm";
2740	require cf;	3764	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3765	cf::_connect_to_perl_1;
2742		3766
2743	warn "loading config and database again";	3767	warn "loading config and database again";
2744	cf::cfg_load;	3768	cf::reload_config;
2745		3769
2746	warn "loading extensions";	3770	warn "loading extensions";
2747	cf::load_extensions;	3771	cf::load_extensions;
2748		3772
		3773	if ($REATTACH_ON_RELOAD) {
2749	warn "reattaching attachments to objects/players";	3774	warn "reattaching attachments to objects/players";
2750	_global_reattach; # objects, sockets	3775	_global_reattach; # objects, sockets
2751	warn "reattaching attachments to maps";	3776	warn "reattaching attachments to maps";
2752	reattach $_ for values %MAP;	3777	reattach $_ for values %MAP;
2753	warn "reattaching attachments to players";	3778	warn "reattaching attachments to players";
2754	reattach $_ for values %PLAYER;	3779	reattach $_ for values %PLAYER;
		3780	}
2755		3781
		3782	warn "running post_init jobs";
		3783	(pop @POST_INIT)->(1) while @POST_INIT;
		3784
2756	warn "leaving sync_job";	3785	warn "leaving sync_job";
2757		3786
2758	1	3787	1
2759	} or do {	3788	} or do {
2760	warn $@;	3789	warn $@;
2761	warn "error while reloading, exiting.";	3790	cf::cleanup "error while reloading, exiting.";
2762	exit 1;
2763	};	3791	};
2764		3792
2765	warn "reloaded";	3793	warn "reloaded";
		3794	--$RELOAD;
		3795	}
		3796
		3797	$t1 = EV::time - $t1;
		3798	warn "reload completed in ${t1}s\n";
2766	};	3799	};
2767		3800
2768	our $RELOAD_WATCHER; # used only during reload	3801	our $RELOAD_WATCHER; # used only during reload
2769		3802
2770	sub reload_perl() {	3803	sub reload_perl() {
2771	# doing reload synchronously and two reloads happen back-to-back,	3804	# doing reload synchronously and two reloads happen back-to-back,
2772	# coro crashes during coro_state_free->destroy here.	3805	# coro crashes during coro_state_free->destroy here.
2773		3806
2774	$RELOAD_WATCHER ||= Event->timer (	3807	$RELOAD_WATCHER ||= cf::async {
2775	reentrant => 0,	3808	Coro::AIO::aio_wait cache_extensions;
2776	after => 0,	3809
2777	data => WF_AUTOCANCEL,	3810	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2778	cb => sub {
2779	do_reload_perl;	3811	do_reload_perl;
2780	undef $RELOAD_WATCHER;	3812	undef $RELOAD_WATCHER;
2781	},	3813	};
2782	);	3814	};
2783	}	3815	}
2784		3816
2785	register_command "reload" => sub {	3817	register_command "reload" => sub {
2786	my ($who, $arg) = @_;	3818	my ($who, $arg) = @_;
2787		3819
2788	if ($who->flag (FLAG_WIZ)) {	3820	if ($who->flag (FLAG_WIZ)) {
2789	$who->message ("reloading server.");	3821	$who->message ("reloading server.");
		3822	async {
		3823	$Coro::current->{desc} = "perl_reload";
2790	async { reload_perl };	3824	reload_perl;
		3825	};
2791	}	3826	}
2792	};	3827	};
2793		3828
2794	unshift @INC, $LIBDIR;	3829	unshift @INC, $LIBDIR;
2795		3830
…		…
2797		3832
2798	our @WAIT_FOR_TICK;	3833	our @WAIT_FOR_TICK;
2799	our @WAIT_FOR_TICK_BEGIN;	3834	our @WAIT_FOR_TICK_BEGIN;
2800		3835
2801	sub wait_for_tick {	3836	sub wait_for_tick {
2802	return unless $TICK_WATCHER->is_active;
2803	return if $Coro::current == $Coro::main;	3837	return if tick_inhibit || $Coro::current == $Coro::main;
2804		3838
2805	my $signal = new Coro::Signal;	3839	my $signal = new Coro::Signal;
2806	push @WAIT_FOR_TICK, $signal;	3840	push @WAIT_FOR_TICK, $signal;
2807	$signal->wait;	3841	$signal->wait;
2808	}	3842	}
2809		3843
2810	sub wait_for_tick_begin {	3844	sub wait_for_tick_begin {
2811	return unless $TICK_WATCHER->is_active;
2812	return if $Coro::current == $Coro::main;	3845	return if tick_inhibit || $Coro::current == $Coro::main;
2813		3846
2814	my $signal = new Coro::Signal;	3847	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3848	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3849	$signal->wait;
2817	}	3850	}
2818		3851
2819	$TICK_WATCHER = Event->timer (	3852	sub tick {
2820	reentrant => 0,
2821	parked => 1,
2822	prio => 0,
2823	at => $NEXT_TICK || $TICK,
2824	data => WF_AUTOCANCEL,
2825	cb => sub {
2826	if ($Coro::current != $Coro::main) {	3853	if ($Coro::current != $Coro::main) {
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3855	unless ++$bug_warning > 10;
2829	return;	3856	return;
2830	}	3857	}
2831		3858
2832	$NOW = Event::time;
2833
2834	cf::server_tick; # one server iteration	3859	cf::server_tick; # one server iteration
2835		3860
2836	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;
2838
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3861	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2840	$NEXT_RUNTIME_WRITE = $NOW + 10;	3862	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2841	Coro::async_pool {	3863	Coro::async_pool {
		3864	$Coro::current->{desc} = "runtime saver";
2842	write_runtime	3865	write_runtime_sync
2843	or warn "ERROR: unable to write runtime file: $!";	3866	or warn "ERROR: unable to write runtime file: $!";
2844	};
2845	}	3867	};
		3868	}
2846		3869
2847	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#
2849
2850	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2852
2853	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;
2855
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3870	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2857	$sig->send;	3871	$sig->send;
2858	}	3872	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {	3873	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;	3874	$sig->send;
2861	}
2862
2863	_post_tick;
2864	},	3875	}
2865	);	3876
		3877	$LOAD = ($NOW - $TICK_START) / $TICK;
		3878	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3879
		3880	if (0) {
		3881	if ($NEXT_TICK) {
		3882	my $jitter = $TICK_START - $NEXT_TICK;
		3883	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3884	warn "jitter $JITTER\n";#d#
		3885	}
		3886	}
		3887	}
2866		3888
2867	{	3889	{
2868	BDB::max_poll_time $TICK * 0.1;	3890	# configure BDB
2869	$BDB_POLL_WATCHER = Event->io (	3891
2870	reentrant => 0,
2871	fd => BDB::poll_fileno,
2872	poll => 'r',
2873	prio => 0,
2874	data => WF_AUTOCANCEL,
2875	cb => \&BDB::poll_cb,
2876	);
2877	BDB::min_parallel 8;	3892	BDB::min_parallel 8;
2878		3893	BDB::max_poll_reqs $TICK * 0.1;
2879	BDB::set_sync_prepare {	3894	$AnyEvent::BDB::WATCHER->priority (1);
2880	my $status;
2881	my $current = $Coro::current;
2882	(
2883	sub {
2884	$status = $!;
2885	$current->ready; undef $current;
2886	},
2887	sub {
2888	Coro::schedule while defined $current;
2889	$! = $status;
2890	},
2891	)
2892	};
2893		3895
2894	unless ($DB_ENV) {	3896	unless ($DB_ENV) {
2895	$DB_ENV = BDB::db_env_create;	3897	$DB_ENV = BDB::db_env_create;
		3898	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3899	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3900	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3901	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3902	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2896		3903
2897	cf::sync_job {	3904	cf::sync_job {
2898	eval {	3905	eval {
2899	BDB::db_env_open	3906	BDB::db_env_open
2900	$DB_ENV,	3907	$DB_ENV,
…		…
2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3909	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3910	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2904	0666;	3911	0666;
2905		3912
2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3913	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2907
2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2909	$DB_ENV->set_lk_detect;
2910	};	3914	};
2911		3915
2912	cf::cleanup "db_env_open(db): $@" if $@;	3916	cf::cleanup "db_env_open(db): $@" if $@;
2913	};	3917	};
2914	}	3918	}
		3919
		3920	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3921	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3922	};
		3923	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3924	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3925	};
		3926	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3927	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3928	};
2915	}	3929	}
2916		3930
2917	{	3931	{
		3932	# configure IO::AIO
		3933
2918	IO::AIO::min_parallel 8;	3934	IO::AIO::min_parallel 8;
2919
2920	undef $Coro::AIO::WATCHER;
2921	IO::AIO::max_poll_time $TICK * 0.1;	3935	IO::AIO::max_poll_time $TICK * 0.1;
2922	$AIO_POLL_WATCHER = Event->io (	3936	undef $AnyEvent::AIO::WATCHER;
2923	reentrant => 0,
2924	data => WF_AUTOCANCEL,
2925	fd => IO::AIO::poll_fileno,
2926	poll => 'r',
2927	prio => 6,
2928	cb => \&IO::AIO::poll_cb,
2929	);
2930	}	3937	}
2931		3938
2932	my $_log_backtrace;	3939	my $_log_backtrace;
2933		3940
2934	sub _log_backtrace {	3941	sub _log_backtrace {
…		…
2937	$msg =~ s/\n//;	3944	$msg =~ s/\n//;
2938		3945
2939	# limit the # of concurrent backtraces	3946	# limit the # of concurrent backtraces
2940	if ($_log_backtrace < 2) {	3947	if ($_log_backtrace < 2) {
2941	++$_log_backtrace;	3948	++$_log_backtrace;
		3949	my $perl_bt = Carp::longmess $msg;
2942	async {	3950	async {
		3951	$Coro::current->{desc} = "abt $msg";
		3952
2943	my @bt = fork_call {	3953	my @bt = fork_call {
2944	@addr = map { sprintf "%x", $_ } @addr;	3954	@addr = map { sprintf "%x", $_ } @addr;
2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3955	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3956	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947	or die "addr2line: $!";	3957	or die "addr2line: $!";
…		…
2955	}	3965	}
2956		3966
2957	@funcs	3967	@funcs
2958	};	3968	};
2959		3969
2960	LOG llevInfo, "[ABT] $msg\n";	3970	LOG llevInfo, "[ABT] $perl_bt\n";
		3971	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2961	LOG llevInfo, "[ABT] $_\n" for @bt;	3972	LOG llevInfo, "[ABT] $_\n" for @bt;
2962	--$_log_backtrace;	3973	--$_log_backtrace;
2963	};	3974	};
2964	} else {	3975	} else {
2965	LOG llevInfo, "[ABT] $msg\n";	3976	LOG llevInfo, "[ABT] $msg\n";
2966	LOG llevInfo, "[ABT] [suppressed]\n";	3977	LOG llevInfo, "[ABT] [suppressed]\n";
2967	}	3978	}
2968	}	3979	}
2969		3980
2970	# load additional modules	3981	# load additional modules
2971	use cf::pod;	3982	require "cf/$_.pm" for @EXTRA_MODULES;
		3983	cf::_connect_to_perl_2;
2972		3984
2973	END { cf::emergency_save }	3985	END { cf::emergency_save }
2974		3986
2975	1	3987	1
2976		3988

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