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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.259 by root, Sat Apr 21 17:46:39 2007 UTC vs.
Revision 1.479 by root, Thu Oct 8 05:04:27 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
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	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	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$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		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
		93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
59		95
60	our $CONFDIR = confdir;	96	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	97	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	98	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	99	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	100	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	101	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	105	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
71		111
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	112	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	113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	114	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
82		123
83	our %CFG;	124	our %CFG;
84		125
85	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
87		129
88	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
91		133
92	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
95	binmode STDOUT;	147	binmode STDOUT;
96	binmode STDERR;	148	binmode STDERR;
97		149
98	# read virtual server time, if available	150	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	152	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
103	}	155	}
		156
		157	eval "sub TICK() { $TICK } 1" or die;
104		158
105	mkdir $_	159	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		161
108	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
109		163
110	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
111		173
112	#############################################################################	174	#############################################################################
113		175
114	=head2 GLOBAL VARIABLES	176	=head2 GLOBAL VARIABLES
115		177
…		…
139		201
140	=item $cf::TICK	202	=item $cf::TICK
141		203
142	The interval between server ticks, in seconds.	204	The interval between server ticks, in seconds.
143		205
		206	=item $cf::LOADAVG
		207
		208	The current CPU load on the server (alpha-smoothed), as a value between 0
		209	(none) and 1 (overloaded), indicating how much time is spent on processing
		210	objects per tick. Healthy values are < 0.5.
		211
		212	=item $cf::LOAD
		213
		214	The raw value load value from the last tick.
		215
144	=item %cf::CFG	216	=item %cf::CFG
145		217
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	218	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	219	from wherever your confdir points to.
148		220
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	221	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		222
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	223	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	224	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.	225	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		226
		227	=item @cf::INVOKE_RESULTS
		228
		229	This array contains the results of the last C<invoke ()> call. When
		230	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		231	that call.
		232
		233	=item %cf::REFLECT
		234
		235	Contains, for each (C++) class name, a hash reference with information
		236	about object members (methods, scalars and arrays) and other metadata,
		237	which is useful for introspection.
		238
155	=back	239	=back
156		240
157	=cut	241	=cut
158		242
159	BEGIN {	243	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	244	my $msg = join "", @_;
162		245
163	$msg .= "\n"	246	$msg .= "\n"
164	unless $msg =~ /\n$/;	247	unless $msg =~ /\n$/;
165		248
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	249	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		250
168	utf8::encode $msg;
169	LOG llevError, $msg;	251	LOG llevError, $msg;
170	};	252	};
171	}	253
		254	$Coro::State::DIEHOOK = sub {
		255	return unless $^S eq 0; # "eq", not "=="
		256
		257	warn Carp::longmess $_[0];
		258
		259	if ($Coro::current == $Coro::main) {#d#
		260	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		261	return;#d#
		262	}#d#
		263
		264	# kill coroutine otherwise
		265	Coro::terminate
		266	};
172		267
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	268	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	269	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	270	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	271	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	272	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		273	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	274	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		275
180	# we bless all objects into (empty) derived classes to force a method lookup	276	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	277	# within the Safe compartment.
182	for my $pkg (qw(	278	for my $pkg (qw(
183	cf::global cf::attachable	279	cf::global cf::attachable
184	cf::object cf::object::player	280	cf::object cf::object::player
185	cf::client cf::player	281	cf::client cf::player
186	cf::arch cf::living	282	cf::arch cf::living
		283	cf::map cf::mapspace
187	cf::map cf::party cf::region	284	cf::party cf::region
188	)) {	285	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	286	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	287	}
192		288
193	$Event::DIED = sub {	289	$EV::DIED = sub {
194	warn "error in event callback: @_";	290	warn "error in event callback: @_";
195	};	291	};
		292
		293	#############################################################################
196		294
197	=head2 UTILITY FUNCTIONS	295	=head2 UTILITY FUNCTIONS
198		296
199	=over 4	297	=over 4
200		298
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	317	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	318	$d
221	} || "[unable to dump $_[0]: '$@']";	319	} || "[unable to dump $_[0]: '$@']";
222	}	320	}
223		321
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	322	=item $ref = cf::decode_json $json
227		323
228	Converts a JSON string into the corresponding perl data structure.	324	Converts a JSON string into the corresponding perl data structure.
229		325
230	=item $json = cf::to_json $ref	326	=item $json = cf::encode_json $ref
231		327
232	Converts a perl data structure into its JSON representation.	328	Converts a perl data structure into its JSON representation.
233		329
		330	=cut
		331
		332	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		333
		334	sub encode_json($) { $json_coder->encode ($_[0]) }
		335	sub decode_json($) { $json_coder->decode ($_[0]) }
		336
		337	=item cf::post_init { BLOCK }
		338
		339	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		340	but I<before> the server starts ticking again.
		341
		342	The cdoeblock will have a single boolean argument to indicate whether this
		343	is a reload or not.
		344
		345	=cut
		346
		347	sub post_init(&) {
		348	push @POST_INIT, shift;
		349	}
		350
234	=item cf::lock_wait $string	351	=item cf::lock_wait $string
235		352
236	Wait until the given lock is available. See cf::lock_acquire.	353	Wait until the given lock is available. See cf::lock_acquire.
237		354
238	=item my $lock = cf::lock_acquire $string	355	=item my $lock = cf::lock_acquire $string
239		356
240	Wait until the given lock is available and then acquires it and returns	357	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,	358	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	359	for example when the coroutine gets canceled), the lock is automatically
243	returned.	360	returned.
244		361
		362	Locks are *not* recursive, locking from the same coro twice results in a
		363	deadlocked coro.
		364
245	Lock names should begin with a unique identifier (for example, cf::map::find	365	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	366	uses map_find and cf::map::load uses map_load).
247		367
248	=item $locked = cf::lock_active $string	368	=item $locked = cf::lock_active $string
249		369
250	Return true if the lock is currently active, i.e. somebody has locked it.	370	Return true if the lock is currently active, i.e. somebody has locked it.
251		371
252	=cut	372	=cut
253		373
254	our %LOCK;	374	our $LOCKS = new Coro::SemaphoreSet;
255		375
256	sub lock_wait($) {	376	sub lock_wait($) {
257	my ($key) = @_;	377	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	378	}
265		379
266	sub lock_acquire($) {	380	sub lock_acquire($) {
267	my ($key) = @_;	381	$LOCKS->guard ($_[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	}	382	}
279		383
280	sub lock_active($) {	384	sub lock_active($) {
281	my ($key) = @_;	385	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	386	}
285		387
286	sub freeze_mainloop {	388	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	389	tick_inhibit_inc;
288		390
289	my $guard = Coro::guard {	391	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	392	}
		393
		394	=item cf::periodic $interval, $cb
		395
		396	Like EV::periodic, but randomly selects a starting point so that the actions
		397	get spread over timer.
		398
		399	=cut
		400
		401	sub periodic($$) {
		402	my ($interval, $cb) = @_;
		403
		404	my $start = rand List::Util::min 180, $interval;
		405
		406	EV::periodic $start, $interval, 0, $cb
		407	}
		408
		409	=item cf::get_slot $time[, $priority[, $name]]
		410
		411	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		412	This call blocks and returns only when you have at least C<$time> seconds
		413	of cpu time till the next tick. The slot is only valid till the next cede.
		414
		415	The optional C<$name> can be used to identify the job to run. It might be
		416	used for statistical purposes and should identify the same time-class.
		417
		418	Useful for short background jobs.
		419
		420	=cut
		421
		422	our @SLOT_QUEUE;
		423	our $SLOT_QUEUE;
		424
		425	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		426	$SLOT_QUEUE = Coro::async {
		427	$Coro::current->desc ("timeslot manager");
		428
		429	my $signal = new Coro::Signal;
		430
		431	while () {
		432	next_job:
		433	my $avail = cf::till_tick;
		434	if ($avail > 0.01) {
		435	for (0 .. $#SLOT_QUEUE) {
		436	if ($SLOT_QUEUE[$_][0] < $avail) {
		437	my $job = splice @SLOT_QUEUE, $_, 1, ();
		438	$job->[2]->send;
		439	Coro::cede;
		440	goto next_job;
		441	}
		442	}
		443	}
		444
		445	if (@SLOT_QUEUE) {
		446	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		447	push @cf::WAIT_FOR_TICK, $signal;
		448	$signal->wait;
		449	} else {
		450	Coro::schedule;
		451	}
291	};	452	}
292	$TICK_WATCHER->stop;	453	};
293	$guard	454
		455	sub get_slot($;$$) {
		456	return if tick_inhibit || $Coro::current == $Coro::main;
		457
		458	my ($time, $pri, $name) = @_;
		459
		460	$time = $TICK * .6 if $time > $TICK * .6;
		461	my $sig = new Coro::Signal;
		462
		463	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		464	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		465	$SLOT_QUEUE->ready;
		466	$sig->wait;
294	}	467	}
295		468
296	=item cf::async { BLOCK }	469	=item cf::async { BLOCK }
297		470
298	Currently the same as Coro::async_pool, meaning you cannot use	471	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		476
304	BEGIN { *async = \&Coro::async_pool }	477	BEGIN { *async = \&Coro::async_pool }
305		478
306	=item cf::sync_job { BLOCK }	479	=item cf::sync_job { BLOCK }
307		480
308	The design of crossfire+ requires that the main coro ($Coro::main) is	481	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	482	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	483	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		484	acceptable.
311		485
312	If it must be done, put the blocking parts into C<sync_job>. This will run	486	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	487	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	488	server will be frozen during this time, so the block should either finish
315	fast or be very important.	489	fast or be very important.
…		…
318		492
319	sub sync_job(&) {	493	sub sync_job(&) {
320	my ($job) = @_;	494	my ($job) = @_;
321		495
322	if ($Coro::current == $Coro::main) {	496	if ($Coro::current == $Coro::main) {
		497	my $time = EV::time;
		498
323	# this is the main coro, too bad, we have to block	499	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	500	# till the operation succeeds, freezing the server :/
325		501
326	# TODO: use suspend/resume instead	502	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	503
328	my $freeze_guard = freeze_mainloop;	504	my $freeze_guard = freeze_mainloop;
329		505
330	my $busy = 1;	506	my $busy = 1;
331	my @res;	507	my @res;
332		508
333	(async {	509	(async {
		510	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	511	@res = eval { $job->() };
335	warn $@ if $@;	512	warn $@ if $@;
336	undef $busy;	513	undef $busy;
337	})->prio (Coro::PRIO_MAX);	514	})->prio (Coro::PRIO_MAX);
338		515
339	while ($busy) {	516	while ($busy) {
340	Coro::cede or Event::one_event;	517	if (Coro::nready) {
		518	Coro::cede_notself;
		519	} else {
		520	EV::loop EV::LOOP_ONESHOT;
341	}	521	}
		522	}
		523
		524	my $time = EV::time - $time;
		525
		526	$TICK_START += $time; # do not account sync jobs to server load
342		527
343	wantarray ? @res : $res[0]	528	wantarray ? @res : $res[0]
344	} else {	529	} else {
345	# we are in another coroutine, how wonderful, everything just works	530	# we are in another coroutine, how wonderful, everything just works
346		531
…		…
366	$EXT_CORO{$coro+0} = $coro;	551	$EXT_CORO{$coro+0} = $coro;
367		552
368	$coro	553	$coro
369	}	554	}
370		555
371	sub write_runtime {	556	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		557
374	my $runtime = "$LOCALDIR/runtime";	558	Executes the given code block with the given arguments in a seperate
		559	process, returning the results. Everything must be serialisable with
		560	Coro::Storable. May, of course, block. Note that the executed sub may
		561	never block itself or use any form of event handling.
375		562
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	=cut
377	or return;
378		564
379	my $value = $cf::RUNTIME + 90 + 10;	565	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	566	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		567
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	568	# we seemingly have to make a local copy of the whole thing,
384	and return;	569	# otherwise perl prematurely frees the stuff :/
		570	# TODO: investigate and fix (likely this will be rather laborious)
385		571
386	# always fsync - this file is important	572	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	573	reset_signals;
388	and return;	574	&$cb
		575	}, @args;
389		576
390	close $fh	577	wantarray ? @res : $res[-1]
391	or return;	578	}
392		579
393	aio_rename "$runtime~", $runtime	580	=item $coin = coin_from_name $name
394	and return;
395		581
		582	=cut
		583
		584	our %coin_alias = (
		585	"silver" => "silvercoin",
		586	"silvercoin" => "silvercoin",
		587	"silvercoins" => "silvercoin",
		588	"gold" => "goldcoin",
		589	"goldcoin" => "goldcoin",
		590	"goldcoins" => "goldcoin",
		591	"platinum" => "platinacoin",
		592	"platinumcoin" => "platinacoin",
		593	"platinumcoins" => "platinacoin",
		594	"platina" => "platinacoin",
		595	"platinacoin" => "platinacoin",
		596	"platinacoins" => "platinacoin",
		597	"royalty" => "royalty",
		598	"royalties" => "royalty",
		599	);
		600
		601	sub coin_from_name($) {
		602	$coin_alias{$_[0]}
		603	? cf::arch::find $coin_alias{$_[0]}
		604	: undef
		605	}
		606
		607	=item $value = cf::db_get $family => $key
		608
		609	Returns a single value from the environment database.
		610
		611	=item cf::db_put $family => $key => $value
		612
		613	Stores the given C<$value> in the family. It can currently store binary
		614	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		615
		616	=item $db = cf::db_table "name"
		617
		618	Create and/or open a new database table. The string must not be "db" and must be unique
		619	within each server.
		620
		621	=cut
		622
		623	sub db_table($) {
		624	my ($name) = @_;
		625	my $db = BDB::db_create $DB_ENV;
		626
		627	eval {
		628	$db->set_flags (BDB::CHKSUM);
		629
		630	utf8::encode $name;
		631	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		632	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		633	cf::cleanup "db_open(db): $!" if $!;
		634	};
		635	cf::cleanup "db_open(db): $@" if $@;
		636
		637	$db
		638	}
		639
		640	our $DB;
		641
		642	sub db_init {
		643	cf::sync_job {
		644	$DB ||= db_table "db";
		645	};
		646	}
		647
		648	sub db_get($$) {
		649	my $key = "$_[0]/$_[1]";
		650
		651	cf::sync_job {
		652	BDB::db_get $DB, undef, $key, my $data;
		653
		654	$! ? ()
		655	: $data
396	1	656	}
		657	}
		658
		659	sub db_put($$$) {
		660	BDB::dbreq_pri 4;
		661	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		662	}
		663
		664	=item cf::cache $id => [$paths...], $processversion => $process
		665
		666	Generic caching function that returns the value of the resource $id,
		667	caching and regenerating as required.
		668
		669	This function can block.
		670
		671	=cut
		672
		673	sub cache {
		674	my ($id, $src, $processversion, $process) = @_;
		675
		676	my $meta =
		677	join "\x00",
		678	$processversion,
		679	map {
		680	aio_stat $_
		681	and Carp::croak "$_: $!";
		682
		683	($_, (stat _)[7,9])
		684	} @$src;
		685
		686	my $dbmeta = db_get cache => "$id/meta";
		687	if ($dbmeta ne $meta) {
		688	# changed, we may need to process
		689
		690	my @data;
		691	my $md5;
		692
		693	for (0 .. $#$src) {
		694	0 <= aio_load $src->[$_], $data[$_]
		695	or Carp::croak "$src->[$_]: $!";
		696	}
		697
		698	# if processing is expensive, check
		699	# checksum first
		700	if (1) {
		701	$md5 =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	cf::cede_to_tick;
		706	($src->[$_], Digest::MD5::md5_hex $data[$_])
		707	} 0.. $#$src;
		708
		709
		710	my $dbmd5 = db_get cache => "$id/md5";
		711	if ($dbmd5 eq $md5) {
		712	db_put cache => "$id/meta", $meta;
		713
		714	return db_get cache => "$id/data";
		715	}
		716	}
		717
		718	my $t1 = Time::HiRes::time;
		719	my $data = $process->(\@data);
		720	my $t2 = Time::HiRes::time;
		721
		722	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		723
		724	db_put cache => "$id/data", $data;
		725	db_put cache => "$id/md5" , $md5;
		726	db_put cache => "$id/meta", $meta;
		727
		728	return $data;
		729	}
		730
		731	db_get cache => "$id/data"
397	}	732	}
398		733
399	=item cf::datalog type => key => value, ...	734	=item cf::datalog type => key => value, ...
400		735
401	Log a datalog packet of the given type with the given key-value pairs.	736	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		748
414	#############################################################################	749	#############################################################################
415		750
416	=head2 ATTACHABLE OBJECTS	751	=head2 ATTACHABLE OBJECTS
417		752
418	Many objects in crossfire are so-called attachable objects. That means you can	753	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	754	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	755	to it. All such attachable objects support the following methods.
421		756
422	In the following description, CLASS can be any of C<global>, C<object>	757	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	758	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	759	Deliantra).
425		760
426	=over 4	761	=over 4
427		762
428	=item $attachable->attach ($attachment, key => $value...)	763	=item $attachable->attach ($attachment, key => $value...)
429		764
…		…
473	=item cf::CLASS::attachment $name, ...	808	=item cf::CLASS::attachment $name, ...
474		809
475	Register an attachment by C<$name> through which attachable objects of the	810	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	811	given CLASS can refer to this attachment.
477		812
478	Some classes such as crossfire maps and objects can specify attachments	813	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	814	that are attached at load/instantiate time, thus the need for a name.
480		815
481	These calls expect any number of the following handler/hook descriptions:	816	These calls expect any number of the following handler/hook descriptions:
482		817
483	=over 4	818	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	927	$registry = $CB_TYPE[$object_type] ||= [];
593		928
594	} elsif ($type eq "subtype") {	929	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	930	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	931	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	932	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		933
599	} elsif ($type eq "package") {	934	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	935	my $pkg = shift @arg;
601		936
602	while (my ($name, $id) = each %cb_id) {	937	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	966	_attach $registry, $klass, @attach;
632	}	967	}
633		968
634	$obj->{$name} = \%arg;	969	$obj->{$name} = \%arg;
635	} else {	970	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	971	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	972	}
638		973
639	$obj->{_attachment}{$name} = undef;	974	$obj->{_attachment}{$name} = undef;
640	}	975	}
641		976
…		…
643	if (ref $_[0]) {	978	if (ref $_[0]) {
644	_object_attach @_;	979	_object_attach @_;
645	} else {	980	} else {
646	_attach shift->_attach_registry, @_;	981	_attach shift->_attach_registry, @_;
647	}	982	}
		983	_recalc_want;
648	};	984	};
649		985
650	# all those should be optimised	986	# all those should be optimised
651	sub cf::attachable::detach {	987	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	988	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	991	delete $obj->{_attachment}{$name};
656	reattach ($obj);	992	reattach ($obj);
657	} else {	993	} else {
658	Carp::croak "cannot, currently, detach class attachments";	994	Carp::croak "cannot, currently, detach class attachments";
659	}	995	}
		996	_recalc_want;
660	};	997	};
661		998
662	sub cf::attachable::attached {	999	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1000	my ($obj, $name) = @_;
664		1001
…		…
679	";	1016	";
680	die if $@;	1017	die if $@;
681	}	1018	}
682		1019
683	our $override;	1020	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1021	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1022
686	sub override {	1023	sub override {
687	$override = 1;	1024	$override = 1;
688	@invoke_results = ();	1025	@INVOKE_RESULTS = (@_);
689	}	1026	}
690		1027
691	sub do_invoke {	1028	sub do_invoke {
692	my $event = shift;	1029	my $event = shift;
693	my $callbacks = shift;	1030	my $callbacks = shift;
694		1031
695	@invoke_results = ();	1032	@INVOKE_RESULTS = ();
696		1033
697	local $override;	1034	local $override;
698		1035
699	for (@$callbacks) {	1036	for (@$callbacks) {
700	eval { &{$_->[1]} };	1037	eval { &{$_->[1]} };
…		…
709	}	1046	}
710		1047
711	0	1048	0
712	}	1049	}
713		1050
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1052
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1054
718	Generate an object-specific event with the given arguments.	1055	Generate an object-specific event with the given arguments.
719		1056
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1057	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1058	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1059	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1060
724	=back	1061	=back
725		1062
726	=cut	1063	=cut
727		1064
728	#############################################################################	1065	#############################################################################
729	# object support	1066	# object support
		1067
		1068	sub _object_equal($$);
		1069	sub _object_equal($$) {
		1070	my ($a, $b) = @_;
		1071
		1072	return 0 unless (ref $a) eq (ref $b);
		1073
		1074	if ("HASH" eq ref $a) {
		1075	my @ka = keys %$a;
		1076	my @kb = keys %$b;
		1077
		1078	return 0 if @ka != @kb;
		1079
		1080	for (0 .. $#ka) {
		1081	return 0 unless $ka[$_] eq $kb[$_];
		1082	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1083	}
		1084
		1085	} elsif ("ARRAY" eq ref $a) {
		1086
		1087	return 0 if @$a != @$b;
		1088
		1089	for (0 .. $#$a) {
		1090	return 0 unless _object_equal $a->[$_], $b->[$_];
		1091	}
		1092
		1093	} elsif ($a ne $b) {
		1094	return 0;
		1095	}
		1096
		1097	1
		1098	}
		1099
		1100	our $SLOW_MERGES;#d#
		1101	sub _can_merge {
		1102	my ($ob1, $ob2) = @_;
		1103
		1104	++$SLOW_MERGES;#d#
		1105
		1106	# we do the slow way here
		1107	return _object_equal $ob1, $ob2
		1108	}
730		1109
731	sub reattach {	1110	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1111	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1112	my ($obj) = @_;
734		1113
		1114	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1115	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1116
737	my $registry = $obj->registry;	1117	my $registry = $obj->registry;
738		1118
739	@$registry = ();	1119	@$registry = ();
740		1120
…		…
755	cf::attachable->attach (	1135	cf::attachable->attach (
756	prio => -1000000,	1136	prio => -1000000,
757	on_instantiate => sub {	1137	on_instantiate => sub {
758	my ($obj, $data) = @_;	1138	my ($obj, $data) = @_;
759		1139
760	$data = from_json $data;	1140	$data = decode_json $data;
761		1141
762	for (@$data) {	1142	for (@$data) {
763	my ($name, $args) = @$_;	1143	my ($name, $args) = @$_;
764		1144
765	$obj->attach ($name, %{$args || {} });	1145	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1161	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1162	my ($filename, $rdata, $objs) = @_;
783		1163
784	sync_job {	1164	sync_job {
785	if (length $$rdata) {	1165	if (length $$rdata) {
		1166	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1167	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1168	$decname, length $$rdata, scalar @$objs;
788		1169
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1170	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1171	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1172	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1173	if ($cf::USE_FSYNC) {
		1174	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;
		1175	aio_fsync $fh;
		1176	}
793	close $fh;	1177	aio_close $fh;
794		1178
795	if (@$objs) {	1179	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1180	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1181	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1182	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1183	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
801	close $fh;	1188	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1189	aio_rename "$filename.pst~", "$filename.pst";
803	}	1190	}
804	} else {	1191	} else {
805	aio_unlink "$filename.pst";	1192	aio_unlink "$filename.pst";
806	}	1193	}
807		1194
808	aio_rename "$filename~", $filename;	1195	aio_rename "$filename~", $filename;
		1196
		1197	$filename =~ s%/[^/]+$%%;
		1198	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1199	} else {
810	warn "FATAL: $filename~: $!\n";	1200	warn "unable to save objects: $filename~: $!\n";
811	}	1201	}
812	} else {	1202	} else {
813	aio_unlink $filename;	1203	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1204	aio_unlink "$filename.pst";
815	}	1205	}
816	}	1206	};
817	}	1207	}
818		1208
819	sub object_freezer_as_string {	1209	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1210	my ($rdata, $objs) = @_;
821		1211
…		…
833	or return;	1223	or return;
834		1224
835	unless (aio_stat "$filename.pst") {	1225	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1226	(aio_load "$filename.pst", $av) >= 0
837	or return;	1227	or return;
		1228
838	$av = eval { (Storable::thaw $av)->{objs} };	1229	my $st = eval { Coro::Storable::thaw $av };
		1230	$av = $st->{objs};
839	}	1231	}
840		1232
		1233	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1234	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1235	$decname, length $data, scalar @{$av || []};
		1236
843	return ($data, $av);	1237	($data, $av)
844	}	1238	}
		1239
		1240	=head2 COMMAND CALLBACKS
		1241
		1242	=over 4
		1243
		1244	=cut
845		1245
846	#############################################################################	1246	#############################################################################
847	# command handling &c	1247	# command handling &c
848		1248
849	=item cf::register_command $name => \&callback($ob,$args);	1249	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1262	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1263	}
864		1264
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1265	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1266
867	Register a callbackf ro execution when the client sends an extcmd packet.	1267	Register a callback for execution when the client sends an (synchronous)
		1268	extcmd packet. Ext commands will be processed in the order they are
		1269	received by the server, like other user commands. The first argument is
		1270	the logged-in player. Ext commands can only be processed after a player
		1271	has logged in successfully.
868		1272
869	If the callback returns something, it is sent back as if reply was being	1273	If the callback returns something, it is sent back as if reply was being
870	called.	1274	called.
871		1275
		1276	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1277
		1278	Register a callback for execution when the client sends an (asynchronous)
		1279	exticmd packet. Exti commands are processed by the server as soon as they
		1280	are received, i.e. out of order w.r.t. other commands. The first argument
		1281	is a client socket. Exti commands can be received anytime, even before
		1282	log-in.
		1283
		1284	If the callback returns something, it is sent back as if reply was being
		1285	called.
		1286
872	=cut	1287	=cut
873		1288
874	sub register_extcmd {	1289	sub register_extcmd {
875	my ($name, $cb) = @_;	1290	my ($name, $cb) = @_;
876		1291
877	$EXTCMD{$name} = $cb;	1292	$EXTCMD{$name} = $cb;
878	}	1293	}
		1294
		1295	sub register_exticmd {
		1296	my ($name, $cb) = @_;
		1297
		1298	$EXTICMD{$name} = $cb;
		1299	}
		1300
		1301	use File::Glob ();
879		1302
880	cf::player->attach (	1303	cf::player->attach (
881	on_command => sub {	1304	on_command => sub {
882	my ($pl, $name, $params) = @_;	1305	my ($pl, $name, $params) = @_;
883		1306
…		…
891	cf::override;	1314	cf::override;
892	},	1315	},
893	on_extcmd => sub {	1316	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1317	my ($pl, $buf) = @_;
895		1318
896	my $msg = eval { from_json $buf };	1319	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1320
898	if (ref $msg) {	1321	if (ref $msg) {
		1322	my ($type, $reply, @payload) =
		1323	"ARRAY" eq ref $msg
		1324	? @$msg
		1325	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1326
		1327	my @reply;
		1328
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1329	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1330	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1331	}
		1332
		1333	$pl->ext_reply ($reply, @reply)
		1334	if $reply;
		1335
904	} else {	1336	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1337	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1338	}
907		1339
908	cf::override;	1340	cf::override;
909	},	1341	},
910	);	1342	);
911		1343
		1344	# "readahead" all extensions
912	sub load_extension {	1345	sub cache_extensions {
913	my ($path) = @_;	1346	my $grp = IO::AIO::aio_group;
914		1347
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1348	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1349	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1350	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1351	}
940	die $@;
941	}	1352	};
942		1353
943	push @EXTS, $pkg;	1354	$grp
944	}	1355	}
945		1356
946	sub load_extensions {	1357	sub load_extensions {
		1358	cf::sync_job {
		1359	my %todo;
		1360
947	for my $ext (<$LIBDIR/*.ext>) {	1361	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1362	next unless -r $path;
949	eval {	1363
950	load_extension $ext;	1364	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1365	my $base = $1;
		1366	my $pkg = $1;
		1367	$pkg =~ s/[^[:word:]]/_/g;
		1368	$pkg = "ext::$pkg";
		1369
		1370	open my $fh, "<:utf8", $path
		1371	or die "$path: $!";
		1372
		1373	my $source = do { local $/; <$fh> };
		1374
		1375	my %ext = (
		1376	path => $path,
		1377	base => $base,
		1378	pkg => $pkg,
		1379	);
		1380
		1381	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1382	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1383
		1384	$ext{source} =
		1385	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1386	. "#line 1 \"$path\"\n{\n"
		1387	. $source
		1388	. "\n};\n1";
		1389
		1390	$todo{$base} = \%ext;
		1391	}
		1392
		1393	my %done;
		1394	while (%todo) {
		1395	my $progress;
		1396
		1397	while (my ($k, $v) = each %todo) {
		1398	for (split /,\s*/, $v->{meta}{depends}) {
		1399	goto skip
		1400	unless exists $done{$_};
		1401	}
		1402
		1403	warn "... loading '$k' into '$v->{pkg}'\n";
		1404
		1405	unless (eval $v->{source}) {
		1406	my $msg = $@ ? "$v->{path}: $@\n"
		1407	: "$v->{base}: extension inactive.\n";
		1408
		1409	if (exists $v->{meta}{mandatory}) {
		1410	warn $msg;
		1411	cf::cleanup "mandatory extension failed to load, exiting.";
		1412	}
		1413
		1414	warn $msg;
		1415	}
		1416
		1417	$done{$k} = delete $todo{$k};
		1418	push @EXTS, $v->{pkg};
		1419	$progress = 1;
951	1	1420	}
952	} or warn "$ext not loaded: $@";	1421
		1422	skip:
		1423	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1424	unless $progress;
		1425	}
953	}	1426	};
954	}	1427	}
955		1428
956	#############################################################################	1429	#############################################################################
957		1430
		1431	=back
		1432
958	=head2 CORE EXTENSIONS	1433	=head2 CORE EXTENSIONS
959		1434
960	Functions and methods that extend core crossfire objects.	1435	Functions and methods that extend core deliantra objects.
961		1436
962	=cut	1437	=cut
963		1438
964	package cf::player;	1439	package cf::player;
965		1440
966	use Coro::AIO;	1441	use Coro::AIO;
967		1442
968	=head3 cf::player	1443	=head3 cf::player
969		1444
970	=over 4	1445	=over 4
		1446
		1447	=item cf::player::num_playing
		1448
		1449	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1450
		1451	=cut
		1452
		1453	sub num_playing {
		1454	scalar grep
		1455	$_->ob->map
		1456	&& !$_->hidden
		1457	&& !$_->ob->flag (cf::FLAG_WIZ),
		1458	cf::player::list
		1459	}
971		1460
972	=item cf::player::find $login	1461	=item cf::player::find $login
973		1462
974	Returns the given player object, loading it if necessary (might block).	1463	Returns the given player object, loading it if necessary (might block).
975		1464
…		…
994		1483
995	sub exists($) {	1484	sub exists($) {
996	my ($login) = @_;	1485	my ($login) = @_;
997		1486
998	$cf::PLAYER{$login}	1487	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1488	or !aio_stat path $login
1000	}	1489	}
1001		1490
1002	sub find($) {	1491	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1492	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1493	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1500	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1501	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1502	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1503	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1504
1016	my $pl = load_pl path $login	1505	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1506	or return;
		1507
		1508	my $pl = cf::player::load_pl $f
		1509	or return;
		1510
		1511	local $cf::PLAYER_LOADING{$login} = $pl;
		1512	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1513	$cf::PLAYER{$login} = $pl
1019	}	1514	}
1020	}	1515	}
1021	}	1516	}
1022		1517
…		…
1031	return if $pl->{deny_save};	1526	return if $pl->{deny_save};
1032		1527
1033	aio_mkdir playerdir $pl, 0770;	1528	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1529	$pl->{last_save} = $cf::RUNTIME;
1035		1530
		1531	cf::get_slot 0.01;
		1532
1036	$pl->save_pl ($path);	1533	$pl->save_pl ($path);
1037	Coro::cede;	1534	cf::cede_to_tick;
1038	}	1535	}
1039		1536
1040	sub new($) {	1537	sub new($) {
1041	my ($login) = @_;	1538	my ($login) = @_;
1042		1539
…		…
1048	$cf::PLAYER{$login} = $self;	1545	$cf::PLAYER{$login} = $self;
1049		1546
1050	$self	1547	$self
1051	}	1548	}
1052		1549
		1550	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1551
		1552	=cut
		1553
		1554	sub send_msg {
		1555	my $ns = shift->ns
		1556	or return;
		1557	$ns->send_msg (@_);
		1558	}
		1559
1053	=item $pl->quit_character	1560	=item $pl->quit_character
1054		1561
1055	Nukes the player without looking back. If logged in, the connection will	1562	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1563	be destroyed. May block for a long time.
1057		1564
…		…
1061	my ($pl) = @_;	1568	my ($pl) = @_;
1062		1569
1063	my $name = $pl->ob->name;	1570	my $name = $pl->ob->name;
1064		1571
1065	$pl->{deny_save} = 1;	1572	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1573	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1574
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1575	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1576	$pl->deactivate;
		1577	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1578	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1579	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1580	$pl->ns->destroy if $pl->ns;
1072		1581
1073	my $path = playerdir $pl;	1582	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1583	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1619	or return [];
1111		1620
1112	my @logins;	1621	my @logins;
1113		1622
1114	for my $login (@$dirs) {	1623	for my $login (@$dirs) {
		1624	my $path = path $login;
		1625
		1626	# a .pst is a dead give-away for a valid player
		1627	# if no pst file found, open and chekc for blocked users
		1628	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1629	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1630	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1631	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1632	}
1118		1633
1119	utf8::decode $login;	1634	utf8::decode $login;
1120	push @logins, $login;	1635	push @logins, $login;
1121	}	1636	}
1122		1637
…		…
1149	}	1664	}
1150		1665
1151	\@paths	1666	\@paths
1152	}	1667	}
1153		1668
		1669	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1670
		1671	Expand deliantra pod fragments into protocol xml.
		1672
1154	=item $player->ext_reply ($msgid, %msg)	1673	=item $player->ext_reply ($msgid, @msg)
1155		1674
1156	Sends an ext reply to the player.	1675	Sends an ext reply to the player.
1157		1676
1158	=cut	1677	=cut
1159		1678
1160	sub ext_reply($$%) {	1679	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1680	my ($self, $id, @msg) = @_;
1162		1681
1163	$msg{msgid} = $id;	1682	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1683	}
1167		1684
1168	=item $player->ext_event ($type, %msg)	1685	=item $player->ext_msg ($type, @msg)
1169		1686
1170	Sends an ext event to the client.	1687	Sends an ext event to the client.
1171		1688
1172	=cut	1689	=cut
1173		1690
1174	sub ext_event($$%) {	1691	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1692	my ($self, $type, @msg) = @_;
1176		1693
1177	$self->ns->ext_event ($type, %msg);	1694	$self->ns->ext_msg ($type, @msg);
1178	}	1695	}
1179		1696
1180	=head3 cf::region	1697	=head3 cf::region
1181		1698
1182	=over 4	1699	=over 4
…		…
1185		1702
1186	package cf::region;	1703	package cf::region;
1187		1704
1188	=item cf::region::find_by_path $path	1705	=item cf::region::find_by_path $path
1189		1706
1190	Tries to decuce the probable region for a map knowing only its path.	1707	Tries to decuce the likely region for a map knowing only its path.
1191		1708
1192	=cut	1709	=cut
1193		1710
1194	sub find_by_path($) {	1711	sub find_by_path($) {
1195	my ($path) = @_;	1712	my ($path) = @_;
1196		1713
1197	my ($match, $specificity);	1714	my ($match, $specificity);
1198		1715
1199	for my $region (list) {	1716	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1717	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1718	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1719	if $region->specificity > $specificity;
1203	}	1720	}
1204	}	1721	}
1205		1722
…		…
1226	our $MAX_RESET = 3600;	1743	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1744	our $DEFAULT_RESET = 3000;
1228		1745
1229	sub generate_random_map {	1746	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1747	my ($self, $rmp) = @_;
		1748
		1749	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1750
1231	# mit "rum" bekleckern, nicht	1751	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1752	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1753	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1754	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1755	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1789	my ($self, $merge) = @_;
1270		1790
1271	# we have to keep some variables in memory intact	1791	# we have to keep some variables in memory intact
1272	local $self->{path};	1792	local $self->{path};
1273	local $self->{load_path};	1793	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1794
1277	$self->SUPER::thawer_merge ($merge);	1795	$self->SUPER::thawer_merge ($merge);
1278	}	1796	}
1279		1797
1280	sub normalise {	1798	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1845	$self->init; # pass $1 etc.
1328	return $self;	1846	return $self;
1329	}	1847	}
1330	}	1848	}
1331		1849
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1850	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1851	()
1334	}	1852	}
1335		1853
1336	sub init {	1854	sub init {
1337	my ($self) = @_;	1855	my ($self) = @_;
…		…
1359		1877
1360	# the temporary/swap location	1878	# the temporary/swap location
1361	sub save_path {	1879	sub save_path {
1362	my ($self) = @_;	1880	my ($self) = @_;
1363		1881
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1882	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1883	"$TMPDIR/$path.map"
1366	}	1884	}
1367		1885
1368	# the unique path, undef == no special unique path	1886	# the unique path, undef == no special unique path
1369	sub uniq_path {	1887	sub uniq_path {
1370	my ($self) = @_;	1888	my ($self) = @_;
1371		1889
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1890	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1891	"$UNIQUEDIR/$path"
1374	}	1892	}
1375		1893
1376	# and all this just because we cannot iterate over	1894	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1895	my ($self) = @_;
1380		1896
1381	$_->change_map_light ($change)	1897	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1898
		1899	$self->do_decay_objects;
1383	}	1900	}
1384		1901
1385	sub unlink_save {	1902	sub unlink_save {
1386	my ($self) = @_;	1903	my ($self) = @_;
1387		1904
…		…
1392		1909
1393	sub load_header_from($) {	1910	sub load_header_from($) {
1394	my ($self, $path) = @_;	1911	my ($self, $path) = @_;
1395		1912
1396	utf8::encode $path;	1913	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1915	or return;
		1916
		1917	$self->_load_header ($f)
		1918	or return;
		1919
		1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
1402		1922
1403	$self->{load_path} = $path;	1923	$self->{load_path} = $path;
1404		1924
1405	1	1925	1
1406	}	1926	}
…		…
1445	$self->load_header_orig	1965	$self->load_header_orig
1446	or return;	1966	or return;
1447	$self->prepare_orig;	1967	$self->prepare_orig;
1448	}	1968	}
1449		1969
		1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
		1972
1450	$self->default_region (cf::region::find_by_path $self->{path})	1973	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1974	unless $self->default_region;
1452		1975
1453	1	1976	1
1454	}	1977	}
…		…
1457	sub find {	1980	sub find {
1458	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1459		1982
1460	$path = normalise $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1461		1984
		1985	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1986	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1987
1464	$cf::MAP{$path} || do {	1988	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1989	my $map = new_from_path cf::map $path
1467	or return;	1990	or return;
1468		1991
1469	$map->{last_save} = $cf::RUNTIME;	1992	$map->{last_save} = $cf::RUNTIME;
1470		1993
1471	$map->load_header	1994	$map->load_header
1472	or return;	1995	or return;
1473		1996
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1997	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1998	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1999	#$cf::WAIT_FOR_TICK->wait;
		2000	undef $guard2;
		2001	undef $guard1;
1477	$map->reset;	2002	$map->reset;
1478	undef $guard;
1479	return find $path;	2003	return find $path;
1480	}	2004	}
1481		2005
1482	$cf::MAP{$path} = $map	2006	$cf::MAP{$path} = $map
1483	}	2007	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2016	local $self->{deny_reset} = 1; # loading can take a long time
1493		2017
1494	my $path = $self->{path};	2018	my $path = $self->{path};
1495		2019
1496	{	2020	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2021	my $guard = cf::lock_acquire "map_data:$path";
1498		2022
		2023	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2024	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2025
1501	$self->in_memory (cf::MAP_LOADING);	2026	$self->in_memory (cf::MAP_LOADING);
1502		2027
1503	$self->alloc;	2028	$self->alloc;
1504		2029
1505	$self->pre_load;	2030	$self->pre_load;
1506	Coro::cede;	2031	cf::cede_to_tick;
1507		2032
		2033	my $f = new_from_file cf::object::thawer $self->{load_path};
		2034	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2035	$self->_load_objects ($f)
1509	or return;	2036	or return;
1510		2037
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2038	$self->post_load_original
1512	if delete $self->{load_original};	2039	if delete $self->{load_original};
1513		2040
1514	if (my $uniq = $self->uniq_path) {	2041	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2042	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2043	unless (aio_stat $uniq) {
		2044	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2045	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2046	$self->_load_objects ($f);
		2047	$f->resolve_delayed_derefs;
		2048	}
1519	}	2049	}
1520	}	2050	}
1521		2051
1522	Coro::cede;	2052	$f->resolve_delayed_derefs;
		2053
		2054	cf::cede_to_tick;
1523	# now do the right thing for maps	2055	# now do the right thing for maps
1524	$self->link_multipart_objects;	2056	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2057	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2058	unless $self->difficulty;
1527	Coro::cede;	2059	cf::cede_to_tick;
1528		2060
1529	unless ($self->{deny_activate}) {	2061	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2062	$self->decay_objects;
1531	$self->fix_auto_apply;	2063	$self->fix_auto_apply;
1532	$self->update_buttons;	2064	$self->update_buttons;
1533	Coro::cede;	2065	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2066	$self->activate;
1537	}	2067	}
1538		2068
		2069	$self->{last_save} = $cf::RUNTIME;
		2070	$self->last_access ($cf::RUNTIME);
		2071
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2072	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2073	}
1541		2074
1542	$self->post_load;	2075	$self->post_load;
1543	}	2076	}
1544		2077
…		…
1546	my ($self, $ob) = @_;	2079	my ($self, $ob) = @_;
1547		2080
1548	return find "~" . $ob->name . "/" . $self->{path}	2081	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2082	if $self->per_player;
1550		2083
		2084	# return find "?party/" . $ob->name . "/" . $self->{path}
		2085	# if $self->per_party;
		2086
1551	$self	2087	$self
1552	}	2088	}
1553		2089
1554	# find and load all maps in the 3x3 area around a map	2090	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2091	sub load_neighbours {
1556	my ($map) = @_;	2092	my ($map) = @_;
1557		2093
1558	my @diag; # diagonal neighbours	2094	my @neigh; # diagonal neighbours
1559		2095
1560	for (0 .. 3) {	2096	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2097	my $neigh = $map->tile_path ($_)
1562	or next;	2098	or next;
1563	$neigh = find $neigh, $map	2099	$neigh = find $neigh, $map
1564	or next;	2100	or next;
1565	$neigh->load;	2101	$neigh->load;
1566		2102
		2103	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2104	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2105	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2106	}
1570		2107
1571	for (@diag) {	2108	for (grep defined $_->[0], @neigh) {
		2109	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2110	my $neigh = find $path, $origin
1573	or next;	2111	or next;
1574	$neigh->load;	2112	$neigh->load;
1575	}	2113	}
1576	}	2114	}
1577		2115
…		…
1582	}	2120	}
1583		2121
1584	sub do_load_sync {	2122	sub do_load_sync {
1585	my ($map) = @_;	2123	my ($map) = @_;
1586		2124
		2125	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2126	if $Coro::current == $Coro::main;
		2127
1587	cf::sync_job { $map->load };	2128	cf::sync_job { $map->load };
1588	}	2129	}
1589		2130
1590	our %MAP_PREFETCH;	2131	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2132	our $MAP_PREFETCHER = undef;
1592		2133
1593	sub find_async {	2134	sub find_async {
1594	my ($path, $origin) = @_;	2135	my ($path, $origin, $load) = @_;
1595		2136
1596	$path = normalise $path, $origin && $origin->{path};	2137	$path = normalise $path, $origin && $origin->{path};
1597		2138
1598	if (my $map = $cf::MAP{$path}) {	2139	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2140	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2141	}
1601		2142
1602	undef $MAP_PREFETCH{$path};	2143	$MAP_PREFETCH{$path} |= $load;
		2144
1603	$MAP_PREFETCHER ||= cf::async {	2145	$MAP_PREFETCHER ||= cf::async {
		2146	$Coro::current->{desc} = "map prefetcher";
		2147
1604	while (%MAP_PREFETCH) {	2148	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2149	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2150	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2151	$map->load if $v;
		2152	}
1609		2153
1610	delete $MAP_PREFETCH{$path};	2154	delete $MAP_PREFETCH{$k};
1611	}	2155	}
1612	}	2156	}
1613	undef $MAP_PREFETCHER;	2157	undef $MAP_PREFETCHER;
1614	};	2158	};
1615	$MAP_PREFETCHER->prio (6);	2159	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2162	}
1619		2163
1620	sub save {	2164	sub save {
1621	my ($self) = @_;	2165	my ($self) = @_;
1622		2166
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2168
1625	$self->{last_save} = $cf::RUNTIME;	2169	$self->{last_save} = $cf::RUNTIME;
1626		2170
1627	return unless $self->dirty;	2171	return unless $self->dirty;
1628		2172
…		…
1634	return if $self->{deny_save};	2178	return if $self->{deny_save};
1635		2179
1636	local $self->{last_access} = $self->last_access;#d#	2180	local $self->{last_access} = $self->last_access;#d#
1637		2181
1638	cf::async {	2182	cf::async {
		2183	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2184	$_->contr->save for $self->players;
1640	};	2185	};
		2186
		2187	cf::get_slot 0.02;
1641		2188
1642	if ($uniq) {	2189	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2190	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2191	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2192	} else {
…		…
1651	my ($self) = @_;	2198	my ($self) = @_;
1652		2199
1653	# save first because save cedes	2200	# save first because save cedes
1654	$self->save;	2201	$self->save;
1655		2202
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2204
1658	return if $self->players;	2205	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2206	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2207	return if $self->{deny_save};
1661		2208
		2209	$self->in_memory (cf::MAP_SWAPPED);
		2210
		2211	$self->deactivate;
		2212	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2213	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2214	}
1665		2215
1666	sub reset_at {	2216	sub reset_at {
1667	my ($self) = @_;	2217	my ($self) = @_;
1668		2218
1669	# TODO: safety, remove and allow resettable per-player maps	2219	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2220	return 1e99 if $self->{deny_reset};
1672		2221
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2222	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2223	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2224
…		…
1686	my ($self) = @_;	2235	my ($self) = @_;
1687		2236
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2237	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2238
1690	return if $self->players;	2239	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2240
1693	warn "resetting map ", $self->path;#d#	2241	warn "resetting map ", $self->path, "\n";
1694		2242
1695	$self->in_memory (cf::MAP_SWAPPED);	2243	$self->in_memory (cf::MAP_SWAPPED);
1696		2244
1697	# need to save uniques path	2245	# need to save uniques path
1698	unless ($self->{deny_save}) {	2246	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2250	if $uniq;
1703	}	2251	}
1704		2252
1705	delete $cf::MAP{$self->path};	2253	delete $cf::MAP{$self->path};
1706		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2257	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2258
1711	$self->unlink_save;	2259	$self->unlink_save;
1712	$self->destroy;	2260	$self->destroy;
1713	}	2261	}
1714		2262
1715	my $nuke_counter = "aaaa";	2263	my $nuke_counter = "aaaa";
1716		2264
1717	sub nuke {	2265	sub nuke {
1718	my ($self) = @_;	2266	my ($self) = @_;
1719		2267
		2268	{
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
1720	delete $cf::MAP{$self->path};	2271	delete $cf::MAP{$self->path};
1721		2272
1722	$self->unlink_save;	2273	$self->unlink_save;
1723		2274
1724	bless $self, "cf::map";	2275	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2276	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2277	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2278	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2279	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2280
1730	$cf::MAP{$self->path} = $self;	2281	$cf::MAP{$self->path} = $self;
		2282	}
1731		2283
1732	$self->reset; # polite request, might not happen	2284	$self->reset; # polite request, might not happen
		2285	}
		2286
		2287	=item $maps = cf::map::tmp_maps
		2288
		2289	Returns an arrayref with all map paths of currently instantiated and saved
		2290	maps. May block.
		2291
		2292	=cut
		2293
		2294	sub tmp_maps() {
		2295	[
		2296	map {
		2297	utf8::decode $_;
		2298	/\.map$/
		2299	? normalise $_
		2300	: ()
		2301	} @{ aio_readdir $TMPDIR or [] }
		2302	]
		2303	}
		2304
		2305	=item $maps = cf::map::random_maps
		2306
		2307	Returns an arrayref with all map paths of currently instantiated and saved
		2308	random maps. May block.
		2309
		2310	=cut
		2311
		2312	sub random_maps() {
		2313	[
		2314	map {
		2315	utf8::decode $_;
		2316	/\.map$/
		2317	? normalise "?random/$_"
		2318	: ()
		2319	} @{ aio_readdir $RANDOMDIR or [] }
		2320	]
1733	}	2321	}
1734		2322
1735	=item cf::map::unique_maps	2323	=item cf::map::unique_maps
1736		2324
1737	Returns an arrayref of paths of all shared maps that have	2325	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2326	instantiated unique items. May block.
1739		2327
1740	=cut	2328	=cut
1741		2329
1742	sub unique_maps() {	2330	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2331	[
1744	or return;	2332	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2333	utf8::decode $_;
1750	next if /\.pst$/;	2334	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2335	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2336	? ()
1753	push @paths, cf::map::normalise $_;	2337	: normalise $_
		2338	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2339	]
1755
1756	\@paths
1757	}	2340	}
1758
1759	package cf;
1760		2341
1761	=back	2342	=back
1762		2343
1763	=head3 cf::object	2344	=head3 cf::object
1764		2345
…		…
1768		2349
1769	=over 4	2350	=over 4
1770		2351
1771	=item $ob->inv_recursive	2352	=item $ob->inv_recursive
1772		2353
1773	Returns the inventory of the object _and_ their inventories, recursively.	2354	Returns the inventory of the object I<and> their inventories, recursively,
		2355	but I<not> the object itself.
1774		2356
1775	=cut	2357	=cut
1776		2358
1777	sub inv_recursive_;	2359	sub inv_recursive_;
1778	sub inv_recursive_ {	2360	sub inv_recursive_ {
…		…
1781		2363
1782	sub inv_recursive {	2364	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2365	inv_recursive_ inv $_[0]
1784	}	2366	}
1785		2367
		2368	=item $ref = $ob->ref
		2369
		2370	Creates and returns a persistent reference to an object that can be stored as a string.
		2371
		2372	=item $ob = cf::object::deref ($refstring)
		2373
		2374	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2375	even if the object actually exists. May block.
		2376
		2377	=cut
		2378
		2379	sub deref {
		2380	my ($ref) = @_;
		2381
		2382	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2383	my ($uuid, $name) = ($1, $2);
		2384	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2385	or return;
		2386	$pl->ob->uuid eq $uuid
		2387	or return;
		2388
		2389	$pl->ob
		2390	} else {
		2391	warn "$ref: cannot resolve object reference\n";
		2392	undef
		2393	}
		2394	}
		2395
1786	package cf;	2396	package cf;
1787		2397
1788	=back	2398	=back
1789		2399
1790	=head3 cf::object::player	2400	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2406	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2407	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2408	dialogue with the given NPC character.
1799		2409
1800	=cut	2410	=cut
		2411
		2412	our $SAY_CHANNEL = {
		2413	id => "say",
		2414	title => "Map",
		2415	reply => "say ",
		2416	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2417	};
		2418
		2419	our $CHAT_CHANNEL = {
		2420	id => "chat",
		2421	title => "Chat",
		2422	reply => "chat ",
		2423	tooltip => "Player chat and shouts, global to the server.",
		2424	};
1801		2425
1802	# rough implementation of a future "reply" method that works	2426	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2427	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2428	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2429	sub cf::object::player::reply($$$;$) {
…		…
1807		2431
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2433
1810	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1812	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2446	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2447	}
1815	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1816	}	2459	}
1817		2460
1818	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1819		2462
1820	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1833		2476
1834	=item $player_object->enter_link	2477	=item $player_object->enter_link
1835		2478
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2480
1838	The player should be reasonably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2482	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2483	though, as the palyer cannot control the character while it is on the link
		2484	map.
1840		2485
1841	Will never block.	2486	Will never block.
1842		2487
1843	=item $player_object->leave_link ($map, $x, $y)	2488	=item $player_object->leave_link ($map, $x, $y)
1844		2489
…		…
1867	$self->deactivate_recursive;	2512	$self->deactivate_recursive;
1868		2513
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2514	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2515
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2516	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2517	if $self->map && $self->map->{path} ne "{link}";
1873		2518
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2519	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2520	}
1876		2521
1877	sub cf::object::player::leave_link {	2522	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2523	my ($self, $map, $x, $y) = @_;
		2524
		2525	return unless $self->contr->active;
1879		2526
1880	my $link_pos = delete $self->{_link_pos};	2527	my $link_pos = delete $self->{_link_pos};
1881		2528
1882	unless ($map) {	2529	unless ($map) {
1883	# restore original map position	2530	# restore original map position
…		…
1897	# use -1 or undef as default coordinates, not 0, 0	2544	# use -1 or undef as default coordinates, not 0, 0
1898	($x, $y) = ($map->enter_x, $map->enter_y)	2545	($x, $y) = ($map->enter_x, $map->enter_y)
1899	if $x <=0 && $y <= 0;	2546	if $x <=0 && $y <= 0;
1900		2547
1901	$map->load;	2548	$map->load;
1902	$map->load_diag;	2549	$map->load_neighbours;
1903		2550
1904	return unless $self->contr->active;	2551	return unless $self->contr->active;
1905	$self->activate_recursive;
1906		2552
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2553	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2554	$self->enter_map ($map, $x, $y);
1909	}
1910		2555
1911	cf::player->attach (	2556	# only activate afterwards, to support waiting in hooks
1912	on_logout => sub {	2557	$self->activate_recursive;
1913	my ($pl) = @_;	2558	}
1914		2559
1915	# abort map switching before logout	2560	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1916	if ($pl->ob->{_link_pos}) {
1917	cf::sync_job {
1918	$pl->ob->leave_link
1919	};
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2561
1925	# try to abort aborted map switching on player login :)	2562	Moves the player to the given map-path and coordinates by first freezing
1926	# should happen only on crashes	2563	her, loading and preparing them map, calling the provided $check callback
1927	if ($pl->ob->{_link_pos}) {	2564	that has to return the map if sucecssful, and then unfreezes the player on
1928	$pl->ob->enter_link;	2565	the new (success) or old (failed) map position. In either case, $done will
1929	(async {	2566	be called at the end of this process.
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942		2567
1943	=item $player_object->goto ($path, $x, $y)	2568	Note that $check will be called with a potentially non-loaded map, so if
		2569	it needs a loaded map it has to call C<< ->load >>.
1944		2570
1945	=cut	2571	=cut
		2572
		2573	our $GOTOGEN;
1946		2574
1947	sub cf::object::player::goto {	2575	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2576	my ($self, $path, $x, $y, $check, $done) = @_;
		2577
		2578	# do generation counting so two concurrent goto's will be executed in-order
		2579	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2580
1950	$self->enter_link;	2581	$self->enter_link;
1951		2582
1952	(async {	2583	(async {
		2584	$Coro::current->{desc} = "player::goto $path $x $y";
		2585
		2586	# *tag paths override both path and x|y
		2587	if ($path =~ /^\*(.*)$/) {
		2588	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2589	my $ob = $obs[rand @obs];
		2590
		2591	# see if we actually can go there
		2592	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2593	$ob = $obs[rand @obs];
		2594	} else {
		2595	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
		2597	# else put us there anyways for now #d#
		2598
		2599	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2600	} else {
		2601	($path, $x, $y) = (undef, undef, undef);
		2602	}
		2603	}
		2604
1953	my $map = eval {	2605	my $map = eval {
1954	my $map = cf::map::find $path;	2606	my $map = defined $path ? cf::map::find $path : undef;
		2607
		2608	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2609	$map = $map->customise_for ($self);
		2610	$map = $check->($map) if $check && $map;
		2611	} else {
		2612	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	}
		2614
1956	$map	2615	$map
		2616	};
		2617
		2618	if ($@) {
		2619	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2620	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2621	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2622
		2623	if ($gen == $self->{_goto_generation}) {
		2624	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2625	$self->leave_link ($map, $x, $y);
		2626	}
		2627
		2628	$done->() if $done;
1961	})->prio (1);	2629	})->prio (1);
1962	}	2630	}
1963		2631
1964	=item $player_object->enter_exit ($exit_object)	2632	=item $player_object->enter_exit ($exit_object)
1965		2633
…		…
1985	}	2653	}
1986		2654
1987	sub prepare_random_map {	2655	sub prepare_random_map {
1988	my ($exit) = @_;	2656	my ($exit) = @_;
1989		2657
1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1991
1992	# all this does is basically replace the /! path by	2658	# all this does is basically replace the /! path by
1993	# a new random map path (?random/...) with a seed	2659	# a new random map path (?random/...) with a seed
1994	# that depends on the exit object	2660	# that depends on the exit object
1995		2661
1996	my $rmp = parse_random_map_params $exit->msg;	2662	my $rmp = parse_random_map_params $exit->msg;
…		…
1998	if ($exit->map) {	2664	if ($exit->map) {
1999	$rmp->{region} = $exit->region->name;	2665	$rmp->{region} = $exit->region->name;
2000	$rmp->{origin_map} = $exit->map->path;	2666	$rmp->{origin_map} = $exit->map->path;
2001	$rmp->{origin_x} = $exit->x;	2667	$rmp->{origin_x} = $exit->x;
2002	$rmp->{origin_y} = $exit->y;	2668	$rmp->{origin_y} = $exit->y;
		2669
		2670	$exit->map->touch;
2003	}	2671	}
2004		2672
2005	$rmp->{random_seed} ||= $exit->random_seed;	2673	$rmp->{random_seed} ||= $exit->random_seed;
2006		2674
2007	my $data = cf::to_json $rmp;	2675	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2008	my $md5 = Digest::MD5::md5_hex $data;	2676	my $md5 = Digest::MD5::md5_hex $data;
2009	my $meta = "$RANDOMDIR/$md5.meta";	2677	my $meta = "$RANDOMDIR/$md5.meta";
2010		2678
2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2679	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2012	aio_write $fh, 0, (length $data), $data, 0;	2680	aio_write $fh, 0, (length $data), $data, 0;
2013	undef $fh;	2681	undef $fh;
2014	aio_rename "$meta~", $meta;	2682	aio_rename "$meta~", $meta;
2015		2683
		2684	my $slaying = "?random/$md5";
		2685
		2686	if ($exit->valid) {
2016	$exit->slaying ("?random/$md5");	2687	$exit->slaying ("?random/$md5");
2017	$exit->msg (undef);	2688	$exit->msg (undef);
		2689	}
2018	}	2690	}
2019	}	2691	}
2020		2692
2021	sub cf::object::player::enter_exit {	2693	sub cf::object::player::enter_exit {
2022	my ($self, $exit) = @_;	2694	my ($self, $exit) = @_;
2023		2695
2024	return unless $self->type == cf::PLAYER;	2696	return unless $self->type == cf::PLAYER;
2025		2697
2026	if ($exit->slaying eq "/!") {
2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
2028	# the problem is that $exit might not survive long enough
2029	# so it needs to be done right now, right here
2030	cf::sync_job { prepare_random_map $exit };
2031	}
2032
2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2034	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;
2036
2037	$self->enter_link;	2698	$self->enter_link;
2038		2699
2039	(async {	2700	(async {
2040	$self->deactivate_recursive; # just to be sure	2701	$Coro::current->{desc} = "enter_exit";
		2702
2041	unless (eval {	2703	unless (eval {
		2704	$self->deactivate_recursive; # just to be sure
		2705
		2706	# random map handling
		2707	{
		2708	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2709
		2710	prepare_random_map $exit
		2711	if $exit->slaying eq "/!";
		2712	}
		2713
		2714	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2715	my $x = $exit->stats->hp;
		2716	my $y = $exit->stats->sp;
		2717
2042	$self->goto ($slaying, $hp, $sp);	2718	$self->goto ($map, $x, $y);
2043		2719
		2720	# if exit is damned, update players death & WoR home-position
		2721	$self->contr->savebed ($map, $x, $y)
		2722	if $exit->flag (cf::FLAG_DAMNED);
		2723
2044	1;	2724	1
2045	}) {	2725	}) {
2046	$self->message ("Something went wrong deep within the crossfire server. "	2726	$self->message ("Something went wrong deep within the deliantra server. "
2047	. "I'll try to bring you back to the map you were before. "	2727	. "I'll try to bring you back to the map you were before. "
2048	. "Please report this to the dungeon master!",	2728	. "Please report this to the dungeon master!",
2049	cf::NDI_UNIQUE | cf::NDI_RED);	2729	cf::NDI_UNIQUE | cf::NDI_RED);
2050		2730
2051	warn "ERROR in enter_exit: $@";	2731	warn "ERROR in enter_exit: $@";
…		…
2070		2750
2071	utf8::encode $text;	2751	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2752	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2753	}
2074		2754
		2755	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2756
		2757	Send a drawinfo or msg packet to the client, formatting the msg for the
		2758	client if neccessary. C<$type> should be a string identifying the type of
		2759	the message, with C<log> being the default. If C<$color> is negative, suppress
		2760	the message unless the client supports the msg packet.
		2761
		2762	=cut
		2763
		2764	# non-persistent channels (usually the info channel)
		2765	our %CHANNEL = (
		2766	"c/identify" => {
		2767	id => "infobox",
		2768	title => "Identify",
		2769	reply => undef,
		2770	tooltip => "Items recently identified",
		2771	},
		2772	"c/examine" => {
		2773	id => "infobox",
		2774	title => "Examine",
		2775	reply => undef,
		2776	tooltip => "Signs and other items you examined",
		2777	},
		2778	"c/book" => {
		2779	id => "infobox",
		2780	title => "Book",
		2781	reply => undef,
		2782	tooltip => "The contents of a note or book",
		2783	},
		2784	"c/lookat" => {
		2785	id => "infobox",
		2786	title => "Look",
		2787	reply => undef,
		2788	tooltip => "What you saw there",
		2789	},
		2790	"c/who" => {
		2791	id => "infobox",
		2792	title => "Players",
		2793	reply => undef,
		2794	tooltip => "Shows players who are currently online",
		2795	},
		2796	"c/body" => {
		2797	id => "infobox",
		2798	title => "Body Parts",
		2799	reply => undef,
		2800	tooltip => "Shows which body parts you posess and are available",
		2801	},
		2802	"c/statistics" => {
		2803	id => "infobox",
		2804	title => "Statistics",
		2805	reply => undef,
		2806	tooltip => "Shows your primary statistics",
		2807	},
		2808	"c/skills" => {
		2809	id => "infobox",
		2810	title => "Skills",
		2811	reply => undef,
		2812	tooltip => "Shows your experience per skill and item power",
		2813	},
		2814	"c/shopitems" => {
		2815	id => "infobox",
		2816	title => "Shop Items",
		2817	reply => undef,
		2818	tooltip => "Shows the items currently for sale in this shop",
		2819	},
		2820	"c/resistances" => {
		2821	id => "infobox",
		2822	title => "Resistances",
		2823	reply => undef,
		2824	tooltip => "Shows your resistances",
		2825	},
		2826	"c/pets" => {
		2827	id => "infobox",
		2828	title => "Pets",
		2829	reply => undef,
		2830	tooltip => "Shows information abotu your pets/a specific pet",
		2831	},
		2832	"c/perceiveself" => {
		2833	id => "infobox",
		2834	title => "Perceive Self",
		2835	reply => undef,
		2836	tooltip => "You gained detailed knowledge about yourself",
		2837	},
		2838	"c/uptime" => {
		2839	id => "infobox",
		2840	title => "Uptime",
		2841	reply => undef,
		2842	tooltip => "How long the server has been running since last restart",
		2843	},
		2844	"c/mapinfo" => {
		2845	id => "infobox",
		2846	title => "Map Info",
		2847	reply => undef,
		2848	tooltip => "Information related to the maps",
		2849	},
		2850	"c/party" => {
		2851	id => "party",
		2852	title => "Party",
		2853	reply => "gsay ",
		2854	tooltip => "Messages and chat related to your party",
		2855	},
		2856	"c/death" => {
		2857	id => "death",
		2858	title => "Death",
		2859	reply => undef,
		2860	tooltip => "Reason for and more info about your most recent death",
		2861	},
		2862	"c/say" => $SAY_CHANNEL,
		2863	"c/chat" => $CHAT_CHANNEL,
		2864	);
		2865
		2866	sub cf::client::send_msg {
		2867	my ($self, $channel, $msg, $color, @extra) = @_;
		2868
		2869	$msg = $self->pl->expand_cfpod ($msg)
		2870	unless $color & cf::NDI_VERBATIM;
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel);
		2879	$channel = $channel->{id};
		2880
		2881	} elsif (ref $channel) {
		2882	# send meta info to client, if not yet sent
		2883	unless (exists $self->{channel}{$channel->{id}}) {
		2884	$self->{channel}{$channel->{id}} = $channel;
		2885	$self->ext_msg (channel_info => $channel);
		2886	}
		2887
		2888	$channel = $channel->{id};
		2889	}
		2890
		2891	return unless @extra || length $msg;
		2892
		2893	# default colour, mask it out
		2894	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2895	if $color & cf::NDI_DEF;
		2896
		2897	my $pkt = "msg "
		2898	. $self->{json_coder}->encode (
		2899	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2900	);
		2901
		2902	# try lzf for large packets
		2903	$pkt = "lzf " . Compress::LZF::compress $pkt
		2904	if 1024 <= length $pkt and $self->{can_lzf};
		2905
		2906	# split very large packets
		2907	if (8192 < length $pkt and $self->{can_lzf}) {
		2908	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2909	$pkt = "frag";
		2910	}
		2911
		2912	$self->send_packet ($pkt);
		2913	}
		2914
2075	=item $client->ext_event ($type, %msg)	2915	=item $client->ext_msg ($type, @msg)
2076		2916
2077	Sends an exti event to the client.	2917	Sends an ext event to the client.
2078		2918
2079	=cut	2919	=cut
2080		2920
2081	sub cf::client::ext_event($$%) {	2921	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	2922	my ($self, $type, @msg) = @_;
2083		2923
		2924	if ($self->extcmd == 2) {
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2926	} elsif ($self->extcmd == 1) { # TODO: remove
2084	$msg{msgtype} = "event_$type";	2927	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
		2931
		2932	=item $client->ext_reply ($msgid, @msg)
		2933
		2934	Sends an ext reply to the client.
		2935
		2936	=cut
		2937
		2938	sub cf::client::ext_reply($$@) {
		2939	my ($self, $id, @msg) = @_;
		2940
		2941	if ($self->extcmd == 2) {
		2942	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2943	} elsif ($self->extcmd == 1) {
		2944	#TODO: version 1, remove
		2945	unshift @msg, msgtype => "reply", msgid => $id;
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2947	}
2086	}	2948	}
2087		2949
2088	=item $success = $client->query ($flags, "text", \&cb)	2950	=item $success = $client->query ($flags, "text", \&cb)
2089		2951
2090	Queues a query to the client, calling the given callback with	2952	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2953	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2954	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2955
2094	Queries can fail, so check the return code. Or don't, as queries will become	2956	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	2957	become reliable at some point in the future.
2096		2958
2097	=cut	2959	=cut
2098		2960
2099	sub cf::client::query {	2961	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2962	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2970	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2971	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2972
2111	$self->send_packet ($self->{query_queue}[0][0])	2973	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2974	if @{ $self->{query_queue} } == 1;
		2975
		2976	1
2113	}	2977	}
2114		2978
2115	cf::client->attach (	2979	cf::client->attach (
		2980	on_connect => sub {
		2981	my ($ns) = @_;
		2982
		2983	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2984	},
2116	on_reply => sub {	2985	on_reply => sub {
2117	my ($ns, $msg) = @_;	2986	my ($ns, $msg) = @_;
2118		2987
2119	# this weird shuffling is so that direct followup queries	2988	# this weird shuffling is so that direct followup queries
2120	# get handled first	2989	# get handled first
…		…
2132	} else {	3001	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3002	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	3003	}
2135	}	3004	}
2136	},	3005	},
		3006	on_exticmd => sub {
		3007	my ($ns, $buf) = @_;
		3008
		3009	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3010
		3011	if (ref $msg) {
		3012	my ($type, $reply, @payload) =
		3013	"ARRAY" eq ref $msg
		3014	? @$msg
		3015	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3016
		3017	my @reply;
		3018
		3019	if (my $cb = $EXTICMD{$type}) {
		3020	@reply = $cb->($ns, @payload);
		3021	}
		3022
		3023	$ns->ext_reply ($reply, @reply)
		3024	if $reply;
		3025
		3026	} else {
		3027	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3028	}
		3029
		3030	cf::override;
		3031	},
2137	);	3032	);
2138		3033
2139	=item $client->async (\&cb)	3034	=item $client->async (\&cb)
2140		3035
2141	Create a new coroutine, running the specified callback. The coroutine will	3036	Create a new coroutine, running the specified callback. The coroutine will
…		…
2182	our $safe = new Safe "safe";	3077	our $safe = new Safe "safe";
2183	our $safe_hole = new Safe::Hole;	3078	our $safe_hole = new Safe::Hole;
2184		3079
2185	$SIG{FPE} = 'IGNORE';	3080	$SIG{FPE} = 'IGNORE';
2186		3081
2187	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3082	$safe->permit_only (Opcode::opset qw(
		3083	:base_core :base_mem :base_orig :base_math
		3084	grepstart grepwhile mapstart mapwhile
		3085	sort time
		3086	));
2188		3087
2189	# here we export the classes and methods available to script code	3088	# here we export the classes and methods available to script code
2190		3089
2191	=pod	3090	=pod
2192		3091
2193	The following functions and methods are available within a safe environment:	3092	The following functions and methods are available within a safe environment:
2194		3093
2195	cf::object contr pay_amount pay_player map	3094	cf::object
		3095	contr pay_amount pay_player map x y force_find force_add destroy
		3096	insert remove name archname title slaying race decrease split
		3097	value
		3098
2196	cf::object::player player	3099	cf::object::player
2197	cf::player peaceful	3100	player
2198	cf::map trigger	3101
		3102	cf::player
		3103	peaceful
		3104
		3105	cf::map
		3106	trigger
2199		3107
2200	=cut	3108	=cut
2201		3109
2202	for (	3110	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	3111	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3112	insert remove inv nrof name archname title slaying race
		3113	decrease split destroy change_exp value msg lore send_msg)],
2204	["cf::object::player" => qw(player)],	3114	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	3115	["cf::player" => qw(peaceful send_msg)],
2206	["cf::map" => qw(trigger)],	3116	["cf::map" => qw(trigger)],
2207	) {	3117	) {
2208	no strict 'refs';	3118	no strict 'refs';
2209	my ($pkg, @funs) = @$_;	3119	my ($pkg, @funs) = @$_;
2210	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3120	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2227	my ($code, %vars) = @_;	3137	my ($code, %vars) = @_;
2228		3138
2229	my $qcode = $code;	3139	my $qcode = $code;
2230	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3140	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2231	$qcode =~ s/\n/\\n/g;	3141	$qcode =~ s/\n/\\n/g;
		3142
		3143	%vars = (_dummy => 0) unless %vars;
2232		3144
2233	local $_;	3145	local $_;
2234	local @safe::cf::_safe_eval_args = values %vars;	3146	local @safe::cf::_safe_eval_args = values %vars;
2235		3147
2236	my $eval =	3148	my $eval =
…		…
2279	=back	3191	=back
2280		3192
2281	=cut	3193	=cut
2282		3194
2283	#############################################################################	3195	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	local $SIG{__WARN__};
2441	eval {
2442	local $SIG{__DIE__};
2443	close $fh1;
2444
2445	my @res = eval { $cb->(@args) };
2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447	};
2448
2449	warn $@ if $@;
2450	_exit 0;
2451	}
2452	}
2453
2454
2455
2456	#############################################################################
2457	# the server's init and main functions	3196	# the server's init and main functions
2458		3197
2459	sub load_facedata($) {	3198	sub load_facedata($) {
2460	my ($path) = @_;	3199	my ($path) = @_;
		3200
		3201	# HACK to clear player env face cache, we need some signal framework
		3202	# for this (global event?)
		3203	%ext::player_env::MUSIC_FACE_CACHE = ();
		3204
		3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2461		3206
2462	warn "loading facedata from $path\n";	3207	warn "loading facedata from $path\n";
2463		3208
2464	my $facedata;	3209	my $facedata;
2465	0 < aio_load $path, $facedata	3210	0 < aio_load $path, $facedata
…		…
2468	$facedata = Coro::Storable::thaw $facedata;	3213	$facedata = Coro::Storable::thaw $facedata;
2469		3214
2470	$facedata->{version} == 2	3215	$facedata->{version} == 2
2471	or cf::cleanup "$path: version mismatch, cannot proceed.";	3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
2472		3217
		3218	# patch in the exptable
		3219	$facedata->{resource}{"res/exp_table"} = {
		3220	type => FT_RSRC,
		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3222	};
		3223	cf::cede_to_tick;
		3224
2473	{	3225	{
2474	my $faces = $facedata->{faceinfo};	3226	my $faces = $facedata->{faceinfo};
2475		3227
2476	while (my ($face, $info) = each %$faces) {	3228	while (my ($face, $info) = each %$faces) {
2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3230
2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3231	cf::face::set_visibility $idx, $info->{visibility};
		3232	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2481	Coro::cede;	3235
		3236	cf::cede_to_tick;
2482	}	3237	}
2483		3238
2484	while (my ($face, $info) = each %$faces) {	3239	while (my ($face, $info) = each %$faces) {
2485	next unless $info->{smooth};	3240	next unless $info->{smooth};
		3241
2486	my $idx = cf::face::find $face	3242	my $idx = cf::face::find $face
2487	or next;	3243	or next;
		3244
2488	if (my $smooth = cf::face::find $info->{smooth}) {	3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490	} else {	3248	} else {
2491	warn "smooth face '$info->{smooth}' not found for face '$face'";	3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
2492	}	3250	}
2493	Coro::cede;	3251
		3252	cf::cede_to_tick;
2494	}	3253	}
2495	}	3254	}
2496		3255
2497	{	3256	{
2498	my $anims = $facedata->{animinfo};	3257	my $anims = $facedata->{animinfo};
2499		3258
2500	while (my ($anim, $info) = each %$anims) {	3259	while (my ($anim, $info) = each %$anims) {
2501	cf::anim::set $anim, $info->{frames}, $info->{facings};	3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
2502	Coro::cede;	3261	cf::cede_to_tick;
2503	}	3262	}
2504		3263
2505	cf::anim::invalidate_all; # d'oh	3264	cf::anim::invalidate_all; # d'oh
2506	}	3265	}
2507		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
2508	1	3302	1
2509	}	3303	}
2510		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
		3333	sub load_resource_file($) {
		3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
2511	sub reload_regions {	3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
2512	load_resource_file "$MAPDIR/regions"	3348	load_resource_file "$MAPDIR/regions"
2513	or die "unable to load regions file\n";	3349	or die "unable to load regions file\n";
		3350
		3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
2514	}	3355	}
2515		3356
2516	sub reload_facedata {	3357	sub reload_facedata {
2517	load_facedata "$DATADIR/facedata"	3358	load_facedata "$DATADIR/facedata"
2518	or die "unable to load facedata\n";	3359	or die "unable to load facedata\n";
…		…
2529	}	3370	}
2530		3371
2531	sub reload_resources {	3372	sub reload_resources {
2532	warn "reloading resource files...\n";	3373	warn "reloading resource files...\n";
2533		3374
2534	reload_regions;
2535	reload_facedata;	3375	reload_facedata;
2536	reload_archetypes;	3376	reload_archetypes;
		3377	reload_regions;
2537	reload_treasures;	3378	reload_treasures;
2538		3379
2539	warn "finished reloading resource files\n";	3380	warn "finished reloading resource files\n";
2540	}	3381	}
2541		3382
2542	sub init {	3383	sub reload_config {
2543	reload_resources;
2544	}
2545
2546	sub cfg_load {
2547	open my $fh, "<:utf8", "$CONFDIR/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
2548	or return;	3385	or return;
2549		3386
2550	local $/;	3387	local $/;
2551	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
2552		3389
2553	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2554		3391
2555	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2556	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2562	};	3399	};
2563	warn $@ if $@;	3400	warn $@ if $@;
2564	}	3401	}
2565	}	3402	}
2566		3403
		3404	sub pidfile() {
		3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main_loop {
		3424	warn "EV::loop starting\n";
		3425	if (1) {
		3426	EV::loop;
		3427	}
		3428	warn "EV::loop returned\n";
		3429	goto &main_loop unless $REALLY_UNLOOP;
		3430	}
		3431
2567	sub main {	3432	sub main {
		3433	cf::init_globals; # initialise logging
		3434
		3435	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3436	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3437	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3438	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3439
		3440	cf::init_experience;
		3441	cf::init_anim;
		3442	cf::init_attackmess;
		3443	cf::init_dynamic;
		3444
		3445	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3446
2568	# we must not ever block the main coroutine	3447	# we must not ever block the main coroutine
2569	local $Coro::idle = sub {	3448	local $Coro::idle = sub {
2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3449	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2571	(async {	3450	(async {
2572	Event::one_event;	3451	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3452	EV::loop EV::LOOP_ONESHOT;
2573	})->prio (Coro::PRIO_MAX);	3453	})->prio (Coro::PRIO_MAX);
2574	};	3454	};
2575		3455
2576	cfg_load;	3456	evthread_start IO::AIO::poll_fileno;
		3457
		3458	cf::sync_job {
		3459	reload_resources;
		3460	reload_config;
2577	db_init;	3461	db_init;
		3462
		3463	cf::load_settings;
		3464	cf::load_materials;
		3465	cf::init_uuid;
		3466	cf::init_signals;
		3467	cf::init_commands;
		3468	cf::init_skills;
		3469
		3470	cf::init_beforeplay;
		3471
		3472	atomic;
		3473
2578	load_extensions;	3474	load_extensions;
2579		3475
2580	$TICK_WATCHER->start;	3476	utime time, time, $RUNTIMEFILE;
2581	Event::loop;	3477
		3478	# no (long-running) fork's whatsoever before this point(!)
		3479	use POSIX ();
		3480	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3481
		3482	(pop @POST_INIT)->(0) while @POST_INIT;
		3483	};
		3484
		3485	main_loop;
2582	}	3486	}
2583		3487
2584	#############################################################################	3488	#############################################################################
2585	# initialisation and cleanup	3489	# initialisation and cleanup
2586		3490
2587	# install some emergency cleanup handlers	3491	# install some emergency cleanup handlers
2588	BEGIN {	3492	BEGIN {
		3493	our %SIGWATCHER = ();
2589	for my $signal (qw(INT HUP TERM)) {	3494	for my $signal (qw(INT HUP TERM)) {
2590	Event->signal (	3495	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2591	reentrant => 0,
2592	data => WF_AUTOCANCEL,
2593	signal => $signal,
2594	prio => 0,
2595	cb => sub {
2596	cf::cleanup "SIG$signal";	3496	cf::cleanup "SIG$signal";
2597	},
2598	);	3497	};
		3498	}
		3499	}
		3500
		3501	sub write_runtime_sync {
		3502	# first touch the runtime file to show we are still running:
		3503	# the fsync below can take a very very long time.
		3504
		3505	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3506
		3507	my $guard = cf::lock_acquire "write_runtime";
		3508
		3509	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3510	or return;
		3511
		3512	my $value = $cf::RUNTIME + 90 + 10;
		3513	# 10 is the runtime save interval, for a monotonic clock
		3514	# 60 allows for the watchdog to kill the server.
		3515
		3516	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3517	and return;
		3518
		3519	# always fsync - this file is important
		3520	aio_fsync $fh
		3521	and return;
		3522
		3523	# touch it again to show we are up-to-date
		3524	aio_utime $fh, undef, undef;
		3525
		3526	close $fh
		3527	or return;
		3528
		3529	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3530	and return;
		3531
		3532	warn "runtime file written.\n";
		3533
2599	}	3534	1
		3535	}
		3536
		3537	our $uuid_lock;
		3538	our $uuid_skip;
		3539
		3540	sub write_uuid_sync($) {
		3541	$uuid_skip ||= $_[0];
		3542
		3543	return if $uuid_lock;
		3544	local $uuid_lock = 1;
		3545
		3546	my $uuid = "$LOCALDIR/uuid";
		3547
		3548	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3549	or return;
		3550
		3551	my $value = uuid_seq uuid_cur;
		3552
		3553	unless ($value) {
		3554	warn "cowardly refusing to write zero uuid value!\n";
		3555	return;
		3556	}
		3557
		3558	my $value = uuid_str $value + $uuid_skip;
		3559	$uuid_skip = 0;
		3560
		3561	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3562	and return;
		3563
		3564	# always fsync - this file is important
		3565	aio_fsync $fh
		3566	and return;
		3567
		3568	close $fh
		3569	or return;
		3570
		3571	aio_rename "$uuid~", $uuid
		3572	and return;
		3573
		3574	warn "uuid file written ($value).\n";
		3575
		3576	1
		3577
		3578	}
		3579
		3580	sub write_uuid($$) {
		3581	my ($skip, $sync) = @_;
		3582
		3583	$sync ? write_uuid_sync $skip
		3584	: async { write_uuid_sync $skip };
2600	}	3585	}
2601		3586
2602	sub emergency_save() {	3587	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	3588	my $freeze_guard = cf::freeze_mainloop;
2604		3589
2605	warn "enter emergency perl save\n";	3590	warn "emergency_perl_save: enter\n";
2606		3591
2607	cf::sync_job {	3592	cf::sync_job {
		3593	# this is a trade-off: we want to be very quick here, so
		3594	# save all maps without fsync, and later call a global sync
		3595	# (which in turn might be very very slow)
		3596	local $USE_FSYNC = 0;
		3597
2608	# use a peculiar iteration method to avoid tripping on perl	3598	# use a peculiar iteration method to avoid tripping on perl
2609	# refcount bugs in for. also avoids problems with players	3599	# refcount bugs in for. also avoids problems with players
2610	# and maps saved/destroyed asynchronously.	3600	# and maps saved/destroyed asynchronously.
2611	warn "begin emergency player save\n";	3601	warn "emergency_perl_save: begin player save\n";
2612	for my $login (keys %cf::PLAYER) {	3602	for my $login (keys %cf::PLAYER) {
2613	my $pl = $cf::PLAYER{$login} or next;	3603	my $pl = $cf::PLAYER{$login} or next;
2614	$pl->valid or next;	3604	$pl->valid or next;
		3605	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2615	$pl->save;	3606	$pl->save;
2616	}	3607	}
2617	warn "end emergency player save\n";	3608	warn "emergency_perl_save: end player save\n";
2618		3609
2619	warn "begin emergency map save\n";	3610	warn "emergency_perl_save: begin map save\n";
2620	for my $path (keys %cf::MAP) {	3611	for my $path (keys %cf::MAP) {
2621	my $map = $cf::MAP{$path} or next;	3612	my $map = $cf::MAP{$path} or next;
2622	$map->valid or next;	3613	$map->valid or next;
2623	$map->save;	3614	$map->save;
2624	}	3615	}
2625	warn "end emergency map save\n";	3616	warn "emergency_perl_save: end map save\n";
2626		3617
2627	warn "begin emergency database checkpoint\n";	3618	warn "emergency_perl_save: begin database checkpoint\n";
2628	BDB::db_env_txn_checkpoint $DB_ENV;	3619	BDB::db_env_txn_checkpoint $DB_ENV;
2629	warn "end emergency database checkpoint\n";	3620	warn "emergency_perl_save: end database checkpoint\n";
		3621
		3622	warn "emergency_perl_save: begin write uuid\n";
		3623	write_uuid_sync 1;
		3624	warn "emergency_perl_save: end write uuid\n";
2630	};	3625	};
2631		3626
		3627	warn "emergency_perl_save: starting sync()\n";
		3628	IO::AIO::aio_sync sub {
		3629	warn "emergency_perl_save: finished sync()\n";
		3630	};
		3631
2632	warn "leave emergency perl save\n";	3632	warn "emergency_perl_save: leave\n";
2633	}	3633	}
2634		3634
2635	sub post_cleanup {	3635	sub post_cleanup {
2636	my ($make_core) = @_;	3636	my ($make_core) = @_;
2637		3637
2638	warn Carp::longmess "post_cleanup backtrace"	3638	warn Carp::longmess "post_cleanup backtrace"
2639	if $make_core;	3639	if $make_core;
		3640
		3641	my $fh = pidfile;
		3642	unlink $PIDFILE if <$fh> == $$;
		3643	}
		3644
		3645	# a safer delete_package, copied from Symbol
		3646	sub clear_package($) {
		3647	my $pkg = shift;
		3648
		3649	# expand to full symbol table name if needed
		3650	unless ($pkg =~ /^main::.*::$/) {
		3651	$pkg = "main$pkg" if $pkg =~ /^::/;
		3652	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3653	$pkg .= '::' unless $pkg =~ /::$/;
		3654	}
		3655
		3656	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3657	my $stem_symtab = *{$stem}{HASH};
		3658
		3659	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3660	or return;
		3661
		3662	# clear all symbols
		3663	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3664	for my $name (keys %$leaf_symtab) {
		3665	_gv_clear *{"$pkg$name"};
		3666	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3667	}
		3668	warn "cleared package $pkg\n";#d#
2640	}	3669	}
2641		3670
2642	sub do_reload_perl() {	3671	sub do_reload_perl() {
2643	# can/must only be called in main	3672	# can/must only be called in main
2644	if ($Coro::current != $Coro::main) {	3673	if ($Coro::current != $Coro::main) {
2645	warn "can only reload from main coroutine";	3674	warn "can only reload from main coroutine";
2646	return;	3675	return;
2647	}	3676	}
2648		3677
		3678	return if $RELOAD++;
		3679
		3680	my $t1 = EV::time;
		3681
		3682	while ($RELOAD) {
2649	warn "reloading...";	3683	warn "reloading...";
2650		3684
2651	warn "entering sync_job";	3685	warn "entering sync_job";
2652		3686
2653	cf::sync_job {	3687	cf::sync_job {
2654	cf::write_runtime; # external watchdog should not bark	3688	cf::write_runtime_sync; # external watchdog should not bark
2655	cf::emergency_save;	3689	cf::emergency_save;
2656	cf::write_runtime; # external watchdog should not bark	3690	cf::write_runtime_sync; # external watchdog should not bark
2657		3691
2658	warn "syncing database to disk";	3692	warn "syncing database to disk";
2659	BDB::db_env_txn_checkpoint $DB_ENV;	3693	BDB::db_env_txn_checkpoint $DB_ENV;
2660		3694
2661	# if anything goes wrong in here, we should simply crash as we already saved	3695	# if anything goes wrong in here, we should simply crash as we already saved
2662		3696
2663	warn "cancelling all WF_AUTOCANCEL watchers";
2664	for (Event::all_watchers) {
2665	$_->cancel if $_->data & WF_AUTOCANCEL;
2666	}
2667
2668	warn "flushing outstanding aio requests";	3697	warn "flushing outstanding aio requests";
2669	for (;;) {
2670	BDB::flush;
2671	IO::AIO::flush;
2672	Coro::cede;
2673	last unless IO::AIO::nreqs || BDB::nreqs;	3698	while (IO::AIO::nreqs || BDB::nreqs) {
2674	warn "iterate...";	3699	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2675	}
2676
2677	++$RELOAD;
2678
2679	warn "cancelling all extension coros";
2680	$_->cancel for values %EXT_CORO;
2681	%EXT_CORO = ();
2682
2683	warn "removing commands";
2684	%COMMAND = ();
2685
2686	warn "removing ext commands";
2687	%EXTCMD = ();
2688
2689	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";
2692
2693	if (my $cb = $pkg->can ("unload")) {
2694	eval {
2695	$cb->($pkg);
2696	1
2697	} or warn "$pkg unloaded, but with errors: $@";
2698	}	3700	}
2699		3701
2700	warn "... nuking $pkg";	3702	warn "cancelling all extension coros";
2701	Symbol::delete_package $pkg;	3703	$_->cancel for values %EXT_CORO;
2702	}	3704	%EXT_CORO = ();
2703		3705
2704	warn "unloading all perl modules loaded from $LIBDIR";	3706	warn "removing commands";
2705	while (my ($k, $v) = each %INC) {	3707	%COMMAND = ();
2706	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2707		3708
		3709	warn "removing ext/exti commands";
		3710	%EXTCMD = ();
		3711	%EXTICMD = ();
		3712
		3713	warn "unloading/nuking all extensions";
		3714	for my $pkg (@EXTS) {
2708	warn "... unloading $k";	3715	warn "... unloading $pkg";
2709	delete $INC{$k};
2710		3716
2711	$k =~ s/\.pm$//;
2712	$k =~ s/\//::/g;
2713
2714	if (my $cb = $k->can ("unload_module")) {	3717	if (my $cb = $pkg->can ("unload")) {
		3718	eval {
2715	$cb->();	3719	$cb->($pkg);
		3720	1
		3721	} or warn "$pkg unloaded, but with errors: $@";
		3722	}
		3723
		3724	warn "... clearing $pkg";
		3725	clear_package $pkg;
2716	}	3726	}
2717		3727
2718	Symbol::delete_package $k;	3728	warn "unloading all perl modules loaded from $LIBDIR";
		3729	while (my ($k, $v) = each %INC) {
		3730	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3731
		3732	warn "... unloading $k";
		3733	delete $INC{$k};
		3734
		3735	$k =~ s/\.pm$//;
		3736	$k =~ s/\//::/g;
		3737
		3738	if (my $cb = $k->can ("unload_module")) {
		3739	$cb->();
		3740	}
		3741
		3742	clear_package $k;
2719	}	3743	}
2720		3744
2721	warn "getting rid of safe::, as good as possible";	3745	warn "getting rid of safe::, as good as possible";
2722	Symbol::delete_package "safe::$_"	3746	clear_package "safe::$_"
2723	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3747	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2724		3748
2725	warn "unloading cf.pm \"a bit\"";	3749	warn "unloading cf.pm \"a bit\"";
2726	delete $INC{"cf.pm"};	3750	delete $INC{"cf.pm"};
2727	delete $INC{"cf/pod.pm"};	3751	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2728		3752
2729	# don't, removes xs symbols, too,	3753	# don't, removes xs symbols, too,
2730	# and global variables created in xs	3754	# and global variables created in xs
2731	#Symbol::delete_package __PACKAGE__;	3755	#clear_package __PACKAGE__;
2732		3756
2733	warn "unload completed, starting to reload now";	3757	warn "unload completed, starting to reload now";
2734		3758
2735	warn "reloading cf.pm";	3759	warn "reloading cf.pm";
2736	require cf;	3760	require cf;
2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3761	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2738		3762
2739	warn "loading config and database again";	3763	warn "loading config and database again";
2740	cf::cfg_load;	3764	cf::reload_config;
2741		3765
2742	warn "loading extensions";	3766	warn "loading extensions";
2743	cf::load_extensions;	3767	cf::load_extensions;
2744		3768
		3769	if ($REATTACH_ON_RELOAD) {
2745	warn "reattaching attachments to objects/players";	3770	warn "reattaching attachments to objects/players";
2746	_global_reattach; # objects, sockets	3771	_global_reattach; # objects, sockets
2747	warn "reattaching attachments to maps";	3772	warn "reattaching attachments to maps";
2748	reattach $_ for values %MAP;	3773	reattach $_ for values %MAP;
2749	warn "reattaching attachments to players";	3774	warn "reattaching attachments to players";
2750	reattach $_ for values %PLAYER;	3775	reattach $_ for values %PLAYER;
		3776	}
2751		3777
		3778	warn "running post_init jobs";
		3779	(pop @POST_INIT)->(1) while @POST_INIT;
		3780
2752	warn "leaving sync_job";	3781	warn "leaving sync_job";
2753		3782
2754	1	3783	1
2755	} or do {	3784	} or do {
2756	warn $@;	3785	warn $@;
2757	warn "error while reloading, exiting.";	3786	cf::cleanup "error while reloading, exiting.";
2758	exit 1;
2759	};	3787	};
2760		3788
2761	warn "reloaded";	3789	warn "reloaded";
		3790	--$RELOAD;
		3791	}
		3792
		3793	$t1 = EV::time - $t1;
		3794	warn "reload completed in ${t1}s\n";
2762	};	3795	};
2763		3796
2764	our $RELOAD_WATCHER; # used only during reload	3797	our $RELOAD_WATCHER; # used only during reload
2765		3798
2766	sub reload_perl() {	3799	sub reload_perl() {
2767	# doing reload synchronously and two reloads happen back-to-back,	3800	# doing reload synchronously and two reloads happen back-to-back,
2768	# coro crashes during coro_state_free->destroy here.	3801	# coro crashes during coro_state_free->destroy here.
2769		3802
2770	$RELOAD_WATCHER ||= Event->timer (	3803	$RELOAD_WATCHER ||= cf::async {
2771	reentrant => 0,	3804	Coro::AIO::aio_wait cache_extensions;
2772	after => 0,	3805
2773	data => WF_AUTOCANCEL,	3806	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2774	cb => sub {
2775	do_reload_perl;	3807	do_reload_perl;
2776	undef $RELOAD_WATCHER;	3808	undef $RELOAD_WATCHER;
2777	},	3809	};
2778	);	3810	};
2779	}	3811	}
2780		3812
2781	register_command "reload" => sub {	3813	register_command "reload" => sub {
2782	my ($who, $arg) = @_;	3814	my ($who, $arg) = @_;
2783		3815
2784	if ($who->flag (FLAG_WIZ)) {	3816	if ($who->flag (FLAG_WIZ)) {
2785	$who->message ("reloading server.");	3817	$who->message ("reloading server.");
		3818	async {
		3819	$Coro::current->{desc} = "perl_reload";
2786	async { reload_perl };	3820	reload_perl;
		3821	};
2787	}	3822	}
2788	};	3823	};
2789		3824
2790	unshift @INC, $LIBDIR;	3825	unshift @INC, $LIBDIR;
2791		3826
…		…
2793		3828
2794	our @WAIT_FOR_TICK;	3829	our @WAIT_FOR_TICK;
2795	our @WAIT_FOR_TICK_BEGIN;	3830	our @WAIT_FOR_TICK_BEGIN;
2796		3831
2797	sub wait_for_tick {	3832	sub wait_for_tick {
2798	return unless $TICK_WATCHER->is_active;
2799	return if $Coro::current == $Coro::main;	3833	return if tick_inhibit || $Coro::current == $Coro::main;
2800		3834
2801	my $signal = new Coro::Signal;	3835	my $signal = new Coro::Signal;
2802	push @WAIT_FOR_TICK, $signal;	3836	push @WAIT_FOR_TICK, $signal;
2803	$signal->wait;	3837	$signal->wait;
2804	}	3838	}
2805		3839
2806	sub wait_for_tick_begin {	3840	sub wait_for_tick_begin {
2807	return unless $TICK_WATCHER->is_active;
2808	return if $Coro::current == $Coro::main;	3841	return if tick_inhibit || $Coro::current == $Coro::main;
2809		3842
2810	my $signal = new Coro::Signal;	3843	my $signal = new Coro::Signal;
2811	push @WAIT_FOR_TICK_BEGIN, $signal;	3844	push @WAIT_FOR_TICK_BEGIN, $signal;
2812	$signal->wait;	3845	$signal->wait;
2813	}	3846	}
2814		3847
2815	$TICK_WATCHER = Event->timer (	3848	sub tick {
2816	reentrant => 0,
2817	parked => 1,
2818	prio => 0,
2819	at => $NEXT_TICK || $TICK,
2820	data => WF_AUTOCANCEL,
2821	cb => sub {
2822	if ($Coro::current != $Coro::main) {	3849	if ($Coro::current != $Coro::main) {
2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3850	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824	unless ++$bug_warning > 10;	3851	unless ++$bug_warning > 10;
2825	return;	3852	return;
2826	}	3853	}
2827		3854
2828	$NOW = Event::time;
2829
2830	cf::server_tick; # one server iteration	3855	cf::server_tick; # one server iteration
2831		3856
2832	$RUNTIME += $TICK;
2833	$NEXT_TICK += $TICK;
2834
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3857	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2836	$NEXT_RUNTIME_WRITE = $NOW + 10;	3858	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2837	Coro::async_pool {	3859	Coro::async_pool {
		3860	$Coro::current->{desc} = "runtime saver";
2838	write_runtime	3861	write_runtime_sync
2839	or warn "ERROR: unable to write runtime file: $!";	3862	or warn "ERROR: unable to write runtime file: $!";
2840	};
2841	}	3863	};
		3864	}
2842		3865
2843	# my $AFTER = Event::time;
2844	# warn $AFTER - $NOW;#d#
2845
2846	# if we are delayed by four ticks or more, skip them all
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2848
2849	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;
2851
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3866	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2853	$sig->send;	3867	$sig->send;
2854	}	3868	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {	3869	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;	3870	$sig->send;
2857	}
2858
2859	_post_tick;
2860	},	3871	}
2861	);	3872
		3873	$LOAD = ($NOW - $TICK_START) / $TICK;
		3874	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3875
		3876	if (0) {
		3877	if ($NEXT_TICK) {
		3878	my $jitter = $TICK_START - $NEXT_TICK;
		3879	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3880	warn "jitter $JITTER\n";#d#
		3881	}
		3882	}
		3883	}
2862		3884
2863	{	3885	{
2864	BDB::max_poll_time $TICK * 0.1;	3886	# configure BDB
2865	$BDB_POLL_WATCHER = Event->io (	3887
2866	reentrant => 0,
2867	fd => BDB::poll_fileno,
2868	poll => 'r',
2869	prio => 0,
2870	data => WF_AUTOCANCEL,
2871	cb => \&BDB::poll_cb,
2872	);
2873	BDB::min_parallel 8;	3888	BDB::min_parallel 8;
2874		3889	BDB::max_poll_reqs $TICK * 0.1;
2875	BDB::set_sync_prepare {	3890	$AnyEvent::BDB::WATCHER->priority (1);
2876	my $status;
2877	my $current = $Coro::current;
2878	(
2879	sub {
2880	$status = $!;
2881	$current->ready; undef $current;
2882	},
2883	sub {
2884	Coro::schedule while defined $current;
2885	$! = $status;
2886	},
2887	)
2888	};
2889		3891
2890	unless ($DB_ENV) {	3892	unless ($DB_ENV) {
2891	$DB_ENV = BDB::db_env_create;	3893	$DB_ENV = BDB::db_env_create;
		3894	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3895	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3896	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3897	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3898	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2892		3899
2893	cf::sync_job {	3900	cf::sync_job {
2894	eval {	3901	eval {
2895	BDB::db_env_open	3902	BDB::db_env_open
2896	$DB_ENV,	3903	$DB_ENV,
…		…
2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3905	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3906	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2900	0666;	3907	0666;
2901		3908
2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3909	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2903
2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2905	$DB_ENV->set_lk_detect;
2906	};	3910	};
2907		3911
2908	cf::cleanup "db_env_open(db): $@" if $@;	3912	cf::cleanup "db_env_open(db): $@" if $@;
2909	};	3913	};
2910	}	3914	}
		3915
		3916	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3917	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3918	};
		3919	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3920	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3921	};
		3922	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3923	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3924	};
2911	}	3925	}
2912		3926
2913	{	3927	{
		3928	# configure IO::AIO
		3929
2914	IO::AIO::min_parallel 8;	3930	IO::AIO::min_parallel 8;
2915
2916	undef $Coro::AIO::WATCHER;
2917	IO::AIO::max_poll_time $TICK * 0.1;	3931	IO::AIO::max_poll_time $TICK * 0.1;
2918	$AIO_POLL_WATCHER = Event->io (	3932	undef $AnyEvent::AIO::WATCHER;
2919	reentrant => 0,	3933	}
2920	data => WF_AUTOCANCEL,	3934
2921	fd => IO::AIO::poll_fileno,	3935	my $_log_backtrace;
2922	poll => 'r',	3936
2923	prio => 6,	3937	sub _log_backtrace {
2924	cb => \&IO::AIO::poll_cb,	3938	my ($msg, @addr) = @_;
2925	);	3939
		3940	$msg =~ s/\n//;
		3941
		3942	# limit the # of concurrent backtraces
		3943	if ($_log_backtrace < 2) {
		3944	++$_log_backtrace;
		3945	my $perl_bt = Carp::longmess $msg;
		3946	async {
		3947	$Coro::current->{desc} = "abt $msg";
		3948
		3949	my @bt = fork_call {
		3950	@addr = map { sprintf "%x", $_ } @addr;
		3951	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3952	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3953	or die "addr2line: $!";
		3954
		3955	my @funcs;
		3956	my @res = <$fh>;
		3957	chomp for @res;
		3958	while (@res) {
		3959	my ($func, $line) = splice @res, 0, 2, ();
		3960	push @funcs, "[$func] $line";
		3961	}
		3962
		3963	@funcs
		3964	};
		3965
		3966	LOG llevInfo, "[ABT] $perl_bt\n";
		3967	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3968	LOG llevInfo, "[ABT] $_\n" for @bt;
		3969	--$_log_backtrace;
		3970	};
		3971	} else {
		3972	LOG llevInfo, "[ABT] $msg\n";
		3973	LOG llevInfo, "[ABT] [suppressed]\n";
		3974	}
2926	}	3975	}
2927		3976
2928	# load additional modules	3977	# load additional modules
2929	use cf::pod;	3978	require "cf/$_.pm" for @EXTRA_MODULES;
2930		3979
2931	END { cf::emergency_save }	3980	END { cf::emergency_save }
2932		3981
2933	1	3982	1
2934		3983

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