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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.494 by root, Mon Oct 26 05:18:00 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;	58	use Digest::MD5;
28	use Fcntl;	59	use Fcntl;
29	use YAML::Syck ();	60	use YAML::XS ();
30	use IO::AIO 2.32 ();	61	use IO::AIO ();
31	use Time::HiRes;	62	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	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	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$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		81
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		83
49	our %COMMAND = ();	84	our %COMMAND = ();
50	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
51		86
52	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
56		92
57	our $RELOAD; # number of reloads so far	93	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	94	our @EVENT;
		95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
59		97
60	our $CONFDIR = confdir;	98	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	99	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	100	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	101	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	102	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	103	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	107	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
71		113
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	114	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	115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	116	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	121	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
82		125
83	our %CFG;	126	our %CFG;
84		127
85	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
87		131
88	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
91		135
92	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
		148
95	binmode STDOUT;	149	binmode STDOUT;
96	binmode STDERR;	150	binmode STDERR;
97		151
98	# read virtual server time, if available	152	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	154	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
103	}	157	}
		158
		159	eval "sub TICK() { $TICK } 1" or die;
104		160
105	mkdir $_	161	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		163
108	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
109		165
110	sub cf::map::normalise;	166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		178
112	#############################################################################	179	#############################################################################
113		180
114	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
115		182
…		…
139		206
140	=item $cf::TICK	207	=item $cf::TICK
141		208
142	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
143		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
144	=item %cf::CFG	221	=item %cf::CFG
145		222
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	224	from wherever your confdir points to.
148		225
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		227
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	228	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	229	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.	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
155	=back	244	=back
156		245
157	=cut	246	=cut
158		247
159	BEGIN {	248	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	249	my $msg = join "", @_;
162		250
163	$msg .= "\n"	251	$msg .= "\n"
164	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
165		253
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		255
168	utf8::encode $msg;
169	LOG llevError, $msg;	256	LOG llevError, $msg;
170	};	257	};
171	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
172		272
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		280
180	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	282	# within the Safe compartment.
182	for my $pkg (qw(	283	for my $pkg (qw(
183	cf::global cf::attachable	284	cf::global cf::attachable
184	cf::object cf::object::player	285	cf::object cf::object::player
185	cf::client cf::player	286	cf::client cf::player
186	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
187	cf::map cf::party cf::region	289	cf::party cf::region
188	)) {	290	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	292	}
192		293
193	$Event::DIED = sub {	294	$EV::DIED = sub {
194	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
195	};	296	};
		297
		298	#############################################################################
196		299
197	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
198		301
199	=over 4	302	=over 4
200		303
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	323	$d
221	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
222	}	325	}
223		326
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
227		328
228	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
229		330
230	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
231		332
232	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
233		334
		335	=cut
		336
		337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		338
		339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
		354	}
		355
234	=item cf::lock_wait $string	356	=item cf::lock_wait $string
235		357
236	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
237		359
238	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
239		361
240	Wait until the given lock is available and then acquires it and returns	362	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,	363	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	364	for example when the coroutine gets canceled), the lock is automatically
243	returned.	365	returned.
244		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
245	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
247		372
248	=item $locked = cf::lock_active $string	373	=item $locked = cf::lock_active $string
249		374
250	Return true if the lock is currently active, i.e. somebody has locked it.	375	Return true if the lock is currently active, i.e. somebody has locked it.
251		376
252	=cut	377	=cut
253		378
254	our %LOCK;	379	our $LOCKS = new Coro::SemaphoreSet;
255		380
256	sub lock_wait($) {	381	sub lock_wait($) {
257	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	383	}
265		384
266	sub lock_acquire($) {	385	sub lock_acquire($) {
267	my ($key) = @_;	386	$LOCKS->guard ($_[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	}	387	}
279		388
280	sub lock_active($) {	389	sub lock_active($) {
281	my ($key) = @_;	390	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	391	}
285		392
286	sub freeze_mainloop {	393	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
288		395
289	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	397	}
		398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
291	};	457	}
292	$TICK_WATCHER->stop;	458	};
293	$guard	459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
294	}	472	}
295		473
296	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
297		475
298	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		481
304	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
305		483
306	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
307		485
308	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
311		490
312	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
315	fast or be very important.	494	fast or be very important.
…		…
318		497
319	sub sync_job(&) {	498	sub sync_job(&) {
320	my ($job) = @_;	499	my ($job) = @_;
321		500
322	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
323	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
325		506
326	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	508
328	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
329		510
330	my $busy = 1;	511	my $busy = 1;
331	my @res;	512	my @res;
332		513
333	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	516	@res = eval { $job->() };
335	warn $@ if $@;	517	warn $@ if $@;
336	undef $busy;	518	undef $busy;
337	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
338		520
339	while ($busy) {	521	while ($busy) {
340	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
341	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
342		532
343	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
344	} else {	534	} else {
345	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
346		536
…		…
366	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
367		557
368	$coro	558	$coro
369	}	559	}
370		560
371	sub write_runtime {	561	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		562
374	# first touch the runtime file to show we are still running:	563	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
376		567
377	warn "touching runtime...\n";#d#	568	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	569
379	utime undef, undef, $fh;	570	sub fork_call(&@) {
		571	my ($cb, @args) = @_;
		572
		573	# we seemingly have to make a local copy of the whole thing,
		574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
		576
		577	my @res = Coro::Util::fork_eval {
		578	reset_signals;
		579	&$cb
		580	}, @args;
		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
380	}	639	};
		640	cf::cleanup "db_open(db): $@" if $@;
381		641
382	my $guard = cf::lock_acquire "write_runtime";	642	$db
		643	}
383		644
384	warn "starting to write runtime...\n";#d#	645	our $DB;
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
386	or return;
387		646
388	my $value = $cf::RUNTIME + 90 + 10;	647	sub db_init {
389	# 10 is the runtime save interval, for a monotonic clock	648	cf::sync_job {
390	# 60 allows for the watchdog to kill the server.	649	$DB ||= db_table "db";
		650	};
		651	}
391		652
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0	653	sub db_get($$) {
393	and return;	654	my $key = "$_[0]/$_[1]";
394		655
395	# always fsync - this file is important	656	cf::sync_job {
396	aio_fsync $fh	657	BDB::db_get $DB, undef, $key, my $data;
397	and return;
398		658
399	# touch it again to show we are up-to-date	659	$! ? ()
400	utime undef, undef, $fh;	660	: $data
401
402	close $fh
403	or return;
404
405	aio_rename "$runtime~", $runtime
406	and return;
407
408	warn "... done writing runtime.\n";#d#
409
410	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
411	}	737	}
412		738
413	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
414		740
415	Log a datalog packet of the given type with the given key-value pairs.	741	Log a datalog packet of the given type with the given key-value pairs.
…		…
427		753
428	#############################################################################	754	#############################################################################
429		755
430	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
431		757
432	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
433	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
435		761
436	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
437	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	764	Deliantra).
439		765
440	=over 4	766	=over 4
441		767
442	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
443		769
…		…
487	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
488		814
489	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
490	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
491		817
492	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
493	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
494		820
495	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
496		822
497	=over 4	823	=over 4
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
607		933
608	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		938
613	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	940	my $pkg = shift @arg;
615		941
616	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
646	}	972	}
647		973
648	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
649	} else {	975	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	977	}
652		978
653	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
654	}	980	}
655		981
…		…
657	if (ref $_[0]) {	983	if (ref $_[0]) {
658	_object_attach @_;	984	_object_attach @_;
659	} else {	985	} else {
660	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
661	}	987	}
		988	_recalc_want;
662	};	989	};
663		990
664	# all those should be optimised	991	# all those should be optimised
665	sub cf::attachable::detach {	992	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
670	reattach ($obj);	997	reattach ($obj);
671	} else {	998	} else {
672	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
673	}	1000	}
		1001	_recalc_want;
674	};	1002	};
675		1003
676	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
678		1006
…		…
693	";	1021	";
694	die if $@;	1022	die if $@;
695	}	1023	}
696		1024
697	our $override;	1025	our $override;
698	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
699		1027
700	sub override {	1028	sub override {
701	$override = 1;	1029	$override = 1;
702	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
703	}	1031	}
704		1032
705	sub do_invoke {	1033	sub do_invoke {
706	my $event = shift;	1034	my $event = shift;
707	my $callbacks = shift;	1035	my $callbacks = shift;
708		1036
709	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
710		1038
711	local $override;	1039	local $override;
712		1040
713	for (@$callbacks) {	1041	for (@$callbacks) {
714	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
723	}	1051	}
724		1052
725	0	1053	0
726	}	1054	}
727		1055
728	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
729		1057
730	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
731		1059
732	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
733		1061
734	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
735	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
736	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		1065
738	=back	1066	=back
739		1067
740	=cut	1068	=cut
741		1069
742	#############################################################################	1070	#############################################################################
743	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
744		1114
745	sub reattach {	1115	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	1117	my ($obj) = @_;
748		1118
		1119	# no longer needed after getting rid of delete_package?
749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
750		1121
751	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
752		1123
753	@$registry = ();	1124	@$registry = ();
754		1125
…		…
769	cf::attachable->attach (	1140	cf::attachable->attach (
770	prio => -1000000,	1141	prio => -1000000,
771	on_instantiate => sub {	1142	on_instantiate => sub {
772	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
773		1144
774	$data = from_json $data;	1145	$data = decode_json $data;
775		1146
776	for (@$data) {	1147	for (@$data) {
777	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
778		1149
779	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
795	sub object_freezer_save {	1166	sub object_freezer_save {
796	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
797		1168
798	sync_job {	1169	sync_job {
799	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
800	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
801	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
802		1174
803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
804	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
806	aio_fsync $fh if $cf::USE_FSYNC;	1178	if ($cf::USE_FSYNC) {
		1179	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;
		1180	aio_fsync $fh;
		1181	}
807	close $fh;	1182	aio_close $fh;
808		1183
809	if (@$objs) {	1184	if (@$objs) {
810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
811	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
812	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
813	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
814	aio_fsync $fh if $cf::USE_FSYNC;	1189	if ($cf::USE_FSYNC) {
		1190	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;
		1191	aio_fsync $fh;
		1192	}
815	close $fh;	1193	aio_close $fh;
816	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
817	}	1195	}
818	} else {	1196	} else {
819	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
820	}	1198	}
821		1199
822	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
823	} else {	1204	} else {
824	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
825	}	1206	}
826	} else {	1207	} else {
827	aio_unlink $filename;	1208	aio_unlink $filename;
828	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
829	}	1210	}
830	}	1211	};
831	}	1212	}
832		1213
833	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
834	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
835		1216
…		…
847	or return;	1228	or return;
848		1229
849	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
850	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
851	or return;	1232	or return;
		1233
852	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
853	}	1236	}
854		1237
		1238	utf8::decode (my $decname = $filename);
855	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
857	return ($data, $av);	1242	($data, $av)
858	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
859		1250
860	#############################################################################	1251	#############################################################################
861	# command handling &c	1252	# command handling &c
862		1253
863	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1268	}
878		1269
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1271
881	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
882		1277
883	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
884	called.	1279	called.
885		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
886	=cut	1292	=cut
887		1293
888	sub register_extcmd {	1294	sub register_extcmd {
889	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
890		1296
891	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
892	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
893		1307
894	cf::player->attach (	1308	cf::player->attach (
895	on_command => sub {	1309	on_command => sub {
896	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
897		1311
…		…
905	cf::override;	1319	cf::override;
906	},	1320	},
907	on_extcmd => sub {	1321	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
909		1323
910	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1325
912	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
915	$pl->ext_reply ($msg->{msgid}, %reply);
916	}
917	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
918	} else {	1341	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1343	}
921		1344
922	cf::override;	1345	cf::override;
923	},	1346	},
924	);	1347	);
925		1348
		1349	# "readahead" all extensions
926	sub load_extension {	1350	sub cache_extensions {
927	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
928		1352
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
930	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
931	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}	1356	}
954	die $@;
955	}	1357	};
956		1358
957	push @EXTS, $pkg;	1359	$grp
958	}	1360	}
959		1361
960	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
961	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1367	next unless -r $path;
963	eval {	1368
964	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
965	1	1425	}
966	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
967	}	1431	};
968	}	1432	}
969		1433
970	#############################################################################	1434	#############################################################################
971		1435
		1436	=back
		1437
972	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
973		1439
974	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
975		1441
976	=cut	1442	=cut
977		1443
978	package cf::player;	1444	package cf::player;
979		1445
980	use Coro::AIO;	1446	use Coro::AIO;
981		1447
982	=head3 cf::player	1448	=head3 cf::player
983		1449
984	=over 4	1450	=over 4
		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
985		1465
986	=item cf::player::find $login	1466	=item cf::player::find $login
987		1467
988	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
989		1469
…		…
1008		1488
1009	sub exists($) {	1489	sub exists($) {
1010	my ($login) = @_;	1490	my ($login) = @_;
1011		1491
1012	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
1013	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
1014	}	1494	}
1015		1495
1016	sub find($) {	1496	sub find($) {
1017	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
1018	my $login = $_[0];	1498	my $login = $_[0];
…		…
1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1028	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
1029		1509
1030	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
1031	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
1032	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1033	}	1519	}
1034	}	1520	}
1035	}	1521	}
1036		1522
…		…
1045	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1046		1532
1047	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1048	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1049		1535
		1536	cf::get_slot 0.01;
		1537
1050	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1051	Coro::cede;	1539	cf::cede_to_tick;
1052	}	1540	}
1053		1541
1054	sub new($) {	1542	sub new($) {
1055	my ($login) = @_;	1543	my ($login) = @_;
1056		1544
…		…
1062	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1063		1551
1064	$self	1552	$self
1065	}	1553	}
1066		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1067	=item $pl->quit_character	1565	=item $pl->quit_character
1068		1566
1069	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1070	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1071		1569
…		…
1075	my ($pl) = @_;	1573	my ($pl) = @_;
1076		1574
1077	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1078		1576
1079	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1080	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1081		1579
1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1083	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1085	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1086		1586
1087	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1088	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1124	or return [];	1624	or return [];
1125		1625
1126	my @logins;	1626	my @logins;
1127		1627
1128	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1130	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1131	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1132		1638
1133	utf8::decode $login;	1639	utf8::decode $login;
1134	push @logins, $login;	1640	push @logins, $login;
1135	}	1641	}
1136		1642
…		…
1163	}	1669	}
1164		1670
1165	\@paths	1671	\@paths
1166	}	1672	}
1167		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1168	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1169		1679
1170	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1171		1681
1172	=cut	1682	=cut
1173		1683
1174	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1176		1686
1177	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1688	}
1181		1689
1182	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1183		1691
1184	Sends an ext event to the client.	1692	Sends an ext event to the client.
1185		1693
1186	=cut	1694	=cut
1187		1695
1188	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1190		1698
1191	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1192	}	1700	}
1193		1701
1194	=head3 cf::region	1702	=head3 cf::region
1195		1703
1196	=over 4	1704	=over 4
…		…
1199		1707
1200	package cf::region;	1708	package cf::region;
1201		1709
1202	=item cf::region::find_by_path $path	1710	=item cf::region::find_by_path $path
1203		1711
1204	Tries to decuce the probable region for a map knowing only its path.	1712	Tries to decuce the likely region for a map knowing only its path.
1205		1713
1206	=cut	1714	=cut
1207		1715
1208	sub find_by_path($) {	1716	sub find_by_path($) {
1209	my ($path) = @_;	1717	my ($path) = @_;
1210		1718
1211	my ($match, $specificity);	1719	my ($match, $specificity);
1212		1720
1213	for my $region (list) {	1721	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1722	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1723	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1724	if $region->specificity > $specificity;
1217	}	1725	}
1218	}	1726	}
1219		1727
…		…
1240	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1241	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1242		1750
1243	sub generate_random_map {	1751	sub generate_random_map {
1244	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1755
1245	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1246	$self->_create_random_map (	1757	$self->_create_random_map (
1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1283	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1284		1795
1285	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1286	local $self->{path};	1797	local $self->{path};
1287	local $self->{load_path};	1798	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1799
1291	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1292	}	1801	}
1293		1802
1294	sub normalise {	1803	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1342	return $self;	1851	return $self;
1343	}	1852	}
1344	}	1853	}
1345		1854
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1856	()
1348	}	1857	}
1349		1858
1350	sub init {	1859	sub init {
1351	my ($self) = @_;	1860	my ($self) = @_;
…		…
1373		1882
1374	# the temporary/swap location	1883	# the temporary/swap location
1375	sub save_path {	1884	sub save_path {
1376	my ($self) = @_;	1885	my ($self) = @_;
1377		1886
1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1379	"$TMPDIR/$path.map"	1888	"$TMPDIR/$path.map"
1380	}	1889	}
1381		1890
1382	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1383	sub uniq_path {	1892	sub uniq_path {
1384	my ($self) = @_;	1893	my ($self) = @_;
1385		1894
1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1387	"$UNIQUEDIR/$path"	1896	"$UNIQUEDIR/$path"
1388	}	1897	}
1389		1898
1390	# and all this just because we cannot iterate over	1899	sub decay_objects {
1391	# all maps in C++...
1392	sub change_all_map_light {
1393	my ($change) = @_;	1900	my ($self) = @_;
1394		1901
1395	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1396	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1397	}	1905	}
1398		1906
1399	sub unlink_save {	1907	sub unlink_save {
1400	my ($self) = @_;	1908	my ($self) = @_;
1401		1909
…		…
1406		1914
1407	sub load_header_from($) {	1915	sub load_header_from($) {
1408	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1409		1917
1410	utf8::encode $path;	1918	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	1920	or return;
		1921
		1922	$self->_load_header ($f)
		1923	or return;
		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
1416		1927
1417	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1418		1929
1419	1	1930	1
1420	}	1931	}
…		…
1459	$self->load_header_orig	1970	$self->load_header_orig
1460	or return;	1971	or return;
1461	$self->prepare_orig;	1972	$self->prepare_orig;
1462	}	1973	}
1463		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
1464	$self->default_region (cf::region::find_by_path $self->{path})	1978	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1979	unless $self->default_region;
1466		1980
1467	1	1981	1
1468	}	1982	}
…		…
1471	sub find {	1985	sub find {
1472	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1473		1987
1474	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1475		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1477		1992
1478	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";
1480	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1481	or return;	1995	or return;
1482		1996
1483	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1484		1998
1485	$map->load_header	1999	$map->load_header
1486	or return;	2000	or return;
1487		2001
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1491	$map->reset;	2007	$map->reset;
1492	undef $guard;
1493	return find $path;	2008	return find $path;
1494	}	2009	}
1495		2010
1496	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1497	}	2012	}
…		…
1506	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1507		2022
1508	my $path = $self->{path};	2023	my $path = $self->{path};
1509		2024
1510	{	2025	{
1511	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1512		2027
		2028	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1514		2030
1515	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1516		2032
1517	$self->alloc;	2033	$self->alloc;
1518		2034
1519	$self->pre_load;	2035	$self->pre_load;
1520	Coro::cede;	2036	cf::cede_to_tick;
1521		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
1522	$self->_load_objects ($self->{load_path}, 1)	2040	$self->_load_objects ($f)
1523	or return;	2041	or return;
1524		2042
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1526	if delete $self->{load_original};	2044	if delete $self->{load_original};
1527		2045
1528	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2047	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2050	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1533	}	2054	}
1534	}	2055	}
1535		2056
1536	Coro::cede;	2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1537	# now do the right thing for maps	2060	# now do the right thing for maps
1538	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2063	unless $self->difficulty;
1541	Coro::cede;	2064	cf::cede_to_tick;
1542		2065
1543	unless ($self->{deny_activate}) {	2066	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2067	$self->decay_objects;
1545	$self->fix_auto_apply;	2068	$self->fix_auto_apply;
1546	$self->update_buttons;	2069	$self->update_buttons;
1547	Coro::cede;	2070	cf::cede_to_tick;
1548	$self->set_darkness_map;
1549	Coro::cede;
1550	$self->activate;	2071	$self->activate;
1551	}	2072	}
1552		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
1554	}	2078	}
1555		2079
1556	$self->post_load;	2080	$self->post_load;
1557	}	2081	}
1558		2082
…		…
1560	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1561		2085
1562	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2087	if $self->per_player;
1564		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1565	$self	2092	$self
1566	}	2093	}
1567		2094
1568	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	2096	sub load_neighbours {
1570	my ($map) = @_;	2097	my ($map) = @_;
1571		2098
1572	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1573		2100
1574	for (0 .. 3) {	2101	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1576	or next;	2103	or next;
1577	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1578	or next;	2105	or next;
1579	$neigh->load;	2106	$neigh->load;
1580		2107
		2108	push @neigh,
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}	2111	}
1584		2112
1585	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1586	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1587	or next;	2116	or next;
1588	$neigh->load;	2117	$neigh->load;
1589	}	2118	}
1590	}	2119	}
1591		2120
…		…
1596	}	2125	}
1597		2126
1598	sub do_load_sync {	2127	sub do_load_sync {
1599	my ($map) = @_;	2128	my ($map) = @_;
1600		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1601	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1602	}	2134	}
1603		2135
1604	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1606		2138
1607	sub find_async {	2139	sub find_async {
1608	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1609		2141
1610	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1611		2143
1612	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1614	}	2146	}
1615		2147
1616	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1617	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1618	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2155	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2156	$map->load if $v;
		2157	}
1623		2158
1624	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1625	}	2160	}
1626	}	2161	}
1627	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1628	};	2163	};
1629	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1632	}	2167	}
1633		2168
1634	sub save {	2169	sub save {
1635	my ($self) = @_;	2170	my ($self) = @_;
1636		2171
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2173
1639	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1640		2175
1641	return unless $self->dirty;	2176	return unless $self->dirty;
1642		2177
…		…
1648	return if $self->{deny_save};	2183	return if $self->{deny_save};
1649		2184
1650	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1651		2186
1652	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1654	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1655		2193
1656	if ($uniq) {	2194	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1659	} else {	2197	} else {
…		…
1665	my ($self) = @_;	2203	my ($self) = @_;
1666		2204
1667	# save first because save cedes	2205	# save first because save cedes
1668	$self->save;	2206	$self->save;
1669		2207
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2209
1672	return if $self->players;	2210	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1674	return if $self->{deny_save};	2212	return if $self->{deny_save};
1675		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1676	$self->clear;	2218	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2219	}
1679		2220
1680	sub reset_at {	2221	sub reset_at {
1681	my ($self) = @_;	2222	my ($self) = @_;
1682		2223
1683	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1686		2226
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2229
…		…
1700	my ($self) = @_;	2240	my ($self) = @_;
1701		2241
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2243
1704	return if $self->players;	2244	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2245
1707	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1708		2247
1709	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1710		2249
1711	# need to save uniques path	2250	# need to save uniques path
1712	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1716	if $uniq;	2255	if $uniq;
1717	}	2256	}
1718		2257
1719	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1720		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2262	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2263
1725	$self->unlink_save;	2264	$self->unlink_save;
1726	$self->destroy;	2265	$self->destroy;
1727	}	2266	}
1728		2267
1729	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1730		2269
1731	sub nuke {	2270	sub nuke {
1732	my ($self) = @_;	2271	my ($self) = @_;
1733		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1734	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1735		2277
1736	$self->unlink_save;	2278	$self->unlink_save;
1737		2279
1738	bless $self, "cf::map";	2280	bless $self, "cf::map";
1739	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2285
1744	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1745		2288
1746	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1747	}	2326	}
1748		2327
1749	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1750		2329
1751	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2331	instantiated unique items. May block.
1753		2332
1754	=cut	2333	=cut
1755		2334
1756	sub unique_maps() {	2335	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2336	[
1758	or return;	2337	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2338	utf8::decode $_;
1764	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1765	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1766		2341	? ()
1767	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2344	]
1769
1770	\@paths
1771	}	2345	}
1772		2346
1773	package cf;	2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
		2374	}
		2375
		2376	\@maps
		2377	}
1774		2378
1775	=back	2379	=back
1776		2380
1777	=head3 cf::object	2381	=head3 cf::object
1778		2382
…		…
1782		2386
1783	=over 4	2387	=over 4
1784		2388
1785	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1786		2390
1787	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1788		2393
1789	=cut	2394	=cut
1790		2395
1791	sub inv_recursive_;	2396	sub inv_recursive_;
1792	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1795		2400
1796	sub inv_recursive {	2401	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1798	}	2403	}
1799		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1800	package cf;	2433	package cf;
1801		2434
1802	=back	2435	=back
1803		2436
1804	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1810	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1811	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1812	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1813		2446
1814	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1815		2462
1816	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1817	# with dialog boxes.	2464	# with dialog boxes.
1818	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1819	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1821		2468
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2470
1824	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1826	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1829	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1830	}	2496	}
1831		2497
1832	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1833		2499
1834	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1847		2513
1848	=item $player_object->enter_link	2514	=item $player_object->enter_link
1849		2515
1850	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1851		2517
1852	The player should be reasonably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1853	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1854		2522
1855	Will never block.	2523	Will never block.
1856		2524
1857	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1858		2526
…		…
1881	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1882		2550
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2552
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1887		2555
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1889	}	2557	}
1890		2558
1891	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1893		2563
1894	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1895		2565
1896	unless ($map) {	2566	unless ($map) {
1897	# restore original map position	2567	# restore original map position
…		…
1908	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1909	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1910		2580
1911	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1914		2584
1915	$map->load;	2585	$map->load;
1916	$map->load_diag;	2586	$map->load_neighbours;
1917		2587
1918	return unless $self->contr->active;	2588	return unless $self->contr->active;
1919	$self->activate_recursive;
1920		2589
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1923	}
1924		2592
1925	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1926	on_logout => sub {	2594	$self->activate_recursive;
1927	my ($pl) = @_;	2595	}
1928		2596
1929	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2598
1939	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1940	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1941	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1942	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1943	(async {	2603	be called at the end of this process.
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956		2604
1957	=item $player_object->goto ($path, $x, $y)	2605	Note that $check will be called with a potentially non-loaded map, so if
		2606	it needs a loaded map it has to call C<< ->load >>.
1958		2607
1959	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1960		2611
1961	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2617
1964	$self->enter_link;	2618	$self->enter_link;
1965		2619
1966	(async {	2620	(async {
		2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
1967	my $map = eval {	2642	my $map = eval {
1968	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
		2647	$map = $check->($map) if $check && $map;
		2648	} else {
		2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
		2651
1970	$map	2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2658	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1975	})->prio (1);	2666	})->prio (1);
1976	}	2667	}
1977		2668
1978	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1979		2670
…		…
1999	}	2690	}
2000		2691
2001	sub prepare_random_map {	2692	sub prepare_random_map {
2002	my ($exit) = @_;	2693	my ($exit) = @_;
2003		2694
2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
2005
2006	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
2007	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
2008	# that depends on the exit object	2697	# that depends on the exit object
2009		2698
2010	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
2012	if ($exit->map) {	2701	if ($exit->map) {
2013	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
2014	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
2015	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
2016	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
2017	}	2708	}
2018		2709
2019	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
2020		2711
2021	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2022	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
2023	my $meta = "$RANDOMDIR/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
2024		2715
2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2026	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
2027	undef $fh;	2718	undef $fh;
2028	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
2029		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
2030	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2031	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2032	}	2727	}
2033	}	2728	}
2034		2729
2035	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2036	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2037		2732
2038	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2039		2734
2040	if ($exit->slaying eq "/!") {
2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
2042	# the problem is that $exit might not survive long enough
2043	# so it needs to be done right now, right here
2044	cf::sync_job { prepare_random_map $exit };
2045	}
2046
2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2048	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;
2050
2051	$self->enter_link;	2735	$self->enter_link;
2052		2736
2053	(async {	2737	(async {
2054	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2055	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
		2747	prepare_random_map $exit
		2748	if $exit->slaying eq "/!";
		2749	}
		2750
		2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
		2754
2056	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2057		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
2058	1;	2761	1
2059	}) {	2762	}) {
2060	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2061	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
2062	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2063	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2064		2767
2065	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2084		2787
2085	utf8::encode $text;	2788	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2790	}
2088		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
2089	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2090		2980
2091	Sends an exti event to the client.	2981	Sends an ext event to the client.
2092		2982
2093	=cut	2983	=cut
2094		2984
2095	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2097		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
2100	}	3012	}
2101		3013
2102	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2103		3015
2104	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		3019
2108	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	3021	become reliable at some point in the future.
2110		3022
2111	=cut	3023	=cut
2112		3024
2113	sub cf::client::query {	3025	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	3034	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		3036
2125	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2127	}	3041	}
2128		3042
2129	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
2130	on_reply => sub {	3049	on_reply => sub {
2131	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2132		3051
2133	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2134	# get handled first	3053	# get handled first
…		…
2146	} else {	3065	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	3067	}
2149	}	3068	}
2150	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
2151	);	3096	);
2152		3097
2153	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2154		3099
2155	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2196	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2198		3143
2199	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2200		3145
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
2202		3151
2203	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2204		3153
2205	=pod	3154	=pod
2206		3155
2207	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2208		3157
2209	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2210	cf::object::player player	3163	cf::object::player
2211	cf::player peaceful	3164	player
2212	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2213		3171
2214	=cut	3172	=cut
2215		3173
2216	for (	3174	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2218	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2220	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2221	) {	3181	) {
2222	no strict 'refs';	3182	no strict 'refs';
2223	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2224	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2241	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2242		3202
2243	my $qcode = $code;	3203	my $qcode = $code;
2244	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2245	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2246		3208
2247	local $_;	3209	local $_;
2248	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2249		3211
2250	my $eval =	3212	my $eval =
…		…
2293	=back	3255	=back
2294		3256
2295	=cut	3257	=cut
2296		3258
2297	#############################################################################	3259	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470
2471	#############################################################################
2472	# the server's init and main functions	3260	# the server's init and main functions
2473		3261
2474	sub load_facedata($) {	3262	sub load_facedata($) {
2475	my ($path) = @_;	3263	my ($path) = @_;
		3264
		3265	# HACK to clear player env face cache, we need some signal framework
		3266	# for this (global event?)
		3267	%ext::player_env::MUSIC_FACE_CACHE = ();
		3268
		3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2476		3270
2477	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2478		3272
2479	my $facedata;	3273	my $facedata;
2480	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
…		…
2483	$facedata = Coro::Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2484		3278
2485	$facedata->{version} == 2	3279	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
2488	{	3289	{
2489	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2490		3291
2491	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2496	Coro::cede;	3299
		3300	cf::cede_to_tick;
2497	}	3301	}
2498		3302
2499	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2501	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2502	or next;	3307	or next;
		3308
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3312	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3314	}
2508	Coro::cede;	3315
		3316	cf::cede_to_tick;
2509	}	3317	}
2510	}	3318	}
2511		3319
2512	{	3320	{
2513	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2514		3322
2515	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3325	cf::cede_to_tick;
2518	}	3326	}
2519		3327
2520	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2521	}	3329	}
2522		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
2523	1	3366	1
2524	}	3367	}
2525		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
2526	sub reload_regions {	3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
2527	load_resource_file "$MAPDIR/regions"	3412	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
2529	}	3419	}
2530		3420
2531	sub reload_facedata {	3421	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3422	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3423	or die "unable to load facedata\n";
…		…
2544	}	3434	}
2545		3435
2546	sub reload_resources {	3436	sub reload_resources {
2547	warn "reloading resource files...\n";	3437	warn "reloading resource files...\n";
2548		3438
2549	reload_regions;
2550	reload_facedata;	3439	reload_facedata;
2551	reload_archetypes;	3440	reload_archetypes;
		3441	reload_regions;
2552	reload_treasures;	3442	reload_treasures;
2553		3443
2554	warn "finished reloading resource files\n";	3444	warn "finished reloading resource files\n";
2555	}	3445	}
2556		3446
2557	sub init {	3447	sub reload_config {
2558	reload_resources;	3448	warn "reloading config file...\n";
2559	}
2560		3449
2561	sub cfg_load {
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2563	or return;	3451	or return;
2564		3452
2565	local $/;	3453	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2567		3455
2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2569		3457
2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2576	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2577	};	3465	};
2578	warn $@ if $@;	3466	warn $@ if $@;
2579	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2580	}	3498	}
2581		3499
2582	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2583	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3518	(async {
2587	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2588	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2589	};	3522	};
2590		3523
2591	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
2592	db_init;	3529	db_init;
		3530
		3531	cf::load_settings;
		3532	cf::load_materials;
		3533	cf::init_uuid;
		3534	cf::init_signals;
		3535	cf::init_commands;
		3536	cf::init_skills;
		3537
		3538	cf::init_beforeplay;
		3539
		3540	atomic;
		3541
2593	load_extensions;	3542	load_extensions;
2594		3543
2595	$TICK_WATCHER->start;	3544	utime time, time, $RUNTIMEFILE;
2596	Event::loop;	3545
		3546	# no (long-running) fork's whatsoever before this point(!)
		3547	use POSIX ();
		3548	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3549
		3550	(pop @POST_INIT)->(0) while @POST_INIT;
		3551	};
		3552
		3553	main_loop;
2597	}	3554	}
2598		3555
2599	#############################################################################	3556	#############################################################################
2600	# initialisation and cleanup	3557	# initialisation and cleanup
2601		3558
2602	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2603	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2604	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2605	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	signal => $signal,
2609	prio => 0,
2610	cb => sub {
2611	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2612	},
2613	);	3565	};
		3566	}
		3567	}
		3568
		3569	sub write_runtime_sync {
		3570	# first touch the runtime file to show we are still running:
		3571	# the fsync below can take a very very long time.
		3572
		3573	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3574
		3575	my $guard = cf::lock_acquire "write_runtime";
		3576
		3577	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3578	or return;
		3579
		3580	my $value = $cf::RUNTIME + 90 + 10;
		3581	# 10 is the runtime save interval, for a monotonic clock
		3582	# 60 allows for the watchdog to kill the server.
		3583
		3584	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3585	and return;
		3586
		3587	# always fsync - this file is important
		3588	aio_fsync $fh
		3589	and return;
		3590
		3591	# touch it again to show we are up-to-date
		3592	aio_utime $fh, undef, undef;
		3593
		3594	close $fh
		3595	or return;
		3596
		3597	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3598	and return;
		3599
		3600	warn "runtime file written.\n";
		3601
2614	}	3602	1
		3603	}
		3604
		3605	our $uuid_lock;
		3606	our $uuid_skip;
		3607
		3608	sub write_uuid_sync($) {
		3609	$uuid_skip ||= $_[0];
		3610
		3611	return if $uuid_lock;
		3612	local $uuid_lock = 1;
		3613
		3614	my $uuid = "$LOCALDIR/uuid";
		3615
		3616	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3617	or return;
		3618
		3619	my $value = uuid_seq uuid_cur;
		3620
		3621	unless ($value) {
		3622	warn "cowardly refusing to write zero uuid value!\n";
		3623	return;
		3624	}
		3625
		3626	my $value = uuid_str $value + $uuid_skip;
		3627	$uuid_skip = 0;
		3628
		3629	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3630	and return;
		3631
		3632	# always fsync - this file is important
		3633	aio_fsync $fh
		3634	and return;
		3635
		3636	close $fh
		3637	or return;
		3638
		3639	aio_rename "$uuid~", $uuid
		3640	and return;
		3641
		3642	warn "uuid file written ($value).\n";
		3643
		3644	1
		3645
		3646	}
		3647
		3648	sub write_uuid($$) {
		3649	my ($skip, $sync) = @_;
		3650
		3651	$sync ? write_uuid_sync $skip
		3652	: async { write_uuid_sync $skip };
2615	}	3653	}
2616		3654
2617	sub emergency_save() {	3655	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2619		3657
2620	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2621		3659
2622	cf::sync_job {	3660	cf::sync_job {
		3661	# this is a trade-off: we want to be very quick here, so
		3662	# save all maps without fsync, and later call a global sync
		3663	# (which in turn might be very very slow)
		3664	local $USE_FSYNC = 0;
		3665
2623	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2624	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2625	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2627	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3674	$pl->save;
2631	}	3675	}
2632	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2633		3677
2634	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2635	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2636	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2637	$map->valid or next;	3681	$map->valid or next;
2638	$map->save;	3682	$map->save;
2639	}	3683	}
2640	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
2641		3685
2642	warn "begin emergency database checkpoint\n";	3686	warn "emergency_perl_save: begin database checkpoint\n";
2643	BDB::db_env_txn_checkpoint $DB_ENV;	3687	BDB::db_env_txn_checkpoint $DB_ENV;
2644	warn "end emergency database checkpoint\n";	3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2645	};	3693	};
2646		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2647	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2648	}	3701	}
2649		3702
2650	sub post_cleanup {	3703	sub post_cleanup {
2651	my ($make_core) = @_;	3704	my ($make_core) = @_;
2652		3705
2653	warn Carp::longmess "post_cleanup backtrace"	3706	warn Carp::longmess "post_cleanup backtrace"
2654	if $make_core;	3707	if $make_core;
		3708
		3709	my $fh = pidfile;
		3710	unlink $PIDFILE if <$fh> == $$;
		3711	}
		3712
		3713	# a safer delete_package, copied from Symbol
		3714	sub clear_package($) {
		3715	my $pkg = shift;
		3716
		3717	# expand to full symbol table name if needed
		3718	unless ($pkg =~ /^main::.*::$/) {
		3719	$pkg = "main$pkg" if $pkg =~ /^::/;
		3720	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3721	$pkg .= '::' unless $pkg =~ /::$/;
		3722	}
		3723
		3724	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3725	my $stem_symtab = *{$stem}{HASH};
		3726
		3727	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3728	or return;
		3729
		3730	# clear all symbols
		3731	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3732	for my $name (keys %$leaf_symtab) {
		3733	_gv_clear *{"$pkg$name"};
		3734	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3735	}
		3736	warn "cleared package $pkg\n";#d#
2655	}	3737	}
2656		3738
2657	sub do_reload_perl() {	3739	sub do_reload_perl() {
2658	# can/must only be called in main	3740	# can/must only be called in main
2659	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2660	warn "can only reload from main coroutine";	3742	warn "can only reload from main coroutine";
2661	return;	3743	return;
2662	}	3744	}
2663		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2664	warn "reloading...";	3751	warn "reloading...";
2665		3752
2666	warn "entering sync_job";	3753	warn "entering sync_job";
2667		3754
2668	cf::sync_job {	3755	cf::sync_job {
2669	cf::write_runtime; # external watchdog should not bark	3756	cf::write_runtime_sync; # external watchdog should not bark
2670	cf::emergency_save;	3757	cf::emergency_save;
2671	cf::write_runtime; # external watchdog should not bark	3758	cf::write_runtime_sync; # external watchdog should not bark
2672		3759
2673	warn "syncing database to disk";	3760	warn "syncing database to disk";
2674	BDB::db_env_txn_checkpoint $DB_ENV;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2675		3762
2676	# if anything goes wrong in here, we should simply crash as we already saved	3763	# if anything goes wrong in here, we should simply crash as we already saved
2677		3764
2678	warn "cancelling all WF_AUTOCANCEL watchers";
2679	for (Event::all_watchers) {
2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2681	}
2682
2683	warn "flushing outstanding aio requests";	3765	warn "flushing outstanding aio requests";
2684	for (;;) {
2685	BDB::flush;
2686	IO::AIO::flush;
2687	Coro::cede;
2688	last unless IO::AIO::nreqs || BDB::nreqs;	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2689	warn "iterate...";	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2690	}
2691
2692	++$RELOAD;
2693
2694	warn "cancelling all extension coros";
2695	$_->cancel for values %EXT_CORO;
2696	%EXT_CORO = ();
2697
2698	warn "removing commands";
2699	%COMMAND = ();
2700
2701	warn "removing ext commands";
2702	%EXTCMD = ();
2703
2704	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";
2707
2708	if (my $cb = $pkg->can ("unload")) {
2709	eval {
2710	$cb->($pkg);
2711	1
2712	} or warn "$pkg unloaded, but with errors: $@";
2713	}	3768	}
2714		3769
2715	warn "... nuking $pkg";	3770	warn "cancelling all extension coros";
2716	Symbol::delete_package $pkg;	3771	$_->cancel for values %EXT_CORO;
2717	}	3772	%EXT_CORO = ();
2718		3773
2719	warn "unloading all perl modules loaded from $LIBDIR";	3774	warn "removing commands";
2720	while (my ($k, $v) = each %INC) {	3775	%COMMAND = ();
2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2722		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2723	warn "... unloading $k";	3783	warn "... unloading $pkg";
2724	delete $INC{$k};
2725		3784
2726	$k =~ s/\.pm$//;
2727	$k =~ s/\//::/g;
2728
2729	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2730	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2731	}	3794	}
2732		3795
2733	Symbol::delete_package $k;	3796	warn "unloading all perl modules loaded from $LIBDIR";
		3797	while (my ($k, $v) = each %INC) {
		3798	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3799
		3800	warn "... unloading $k";
		3801	delete $INC{$k};
		3802
		3803	$k =~ s/\.pm$//;
		3804	$k =~ s/\//::/g;
		3805
		3806	if (my $cb = $k->can ("unload_module")) {
		3807	$cb->();
		3808	}
		3809
		3810	clear_package $k;
2734	}	3811	}
2735		3812
2736	warn "getting rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2737	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3815	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2739		3816
2740	warn "unloading cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2741	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
2742	delete $INC{"cf/pod.pm"};	3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2743		3820
2744	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2745	# and global variables created in xs	3822	# and global variables created in xs
2746	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2747		3824
2748	warn "unload completed, starting to reload now";	3825	warn "unload completed, starting to reload now";
2749		3826
2750	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2751	require cf;	3828	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2753		3830
2754	warn "loading config and database again";	3831	warn "loading config and database again";
2755	cf::cfg_load;	3832	cf::reload_config;
2756		3833
2757	warn "loading extensions";	3834	warn "loading extensions";
2758	cf::load_extensions;	3835	cf::load_extensions;
2759		3836
		3837	if ($REATTACH_ON_RELOAD) {
2760	warn "reattaching attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2761	_global_reattach; # objects, sockets	3839	_global_reattach; # objects, sockets
2762	warn "reattaching attachments to maps";	3840	warn "reattaching attachments to maps";
2763	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
2764	warn "reattaching attachments to players";	3842	warn "reattaching attachments to players";
2765	reattach $_ for values %PLAYER;	3843	reattach $_ for values %PLAYER;
		3844	}
2766		3845
		3846	warn "running post_init jobs";
		3847	(pop @POST_INIT)->(1) while @POST_INIT;
		3848
2767	warn "leaving sync_job";	3849	warn "leaving sync_job";
2768		3850
2769	1	3851	1
2770	} or do {	3852	} or do {
2771	warn $@;	3853	warn $@;
2772	warn "error while reloading, exiting.";	3854	cf::cleanup "error while reloading, exiting.";
2773	exit 1;
2774	};	3855	};
2775		3856
2776	warn "reloaded";	3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
2777	};	3863	};
2778		3864
2779	our $RELOAD_WATCHER; # used only during reload	3865	our $RELOAD_WATCHER; # used only during reload
2780		3866
2781	sub reload_perl() {	3867	sub reload_perl() {
2782	# doing reload synchronously and two reloads happen back-to-back,	3868	# doing reload synchronously and two reloads happen back-to-back,
2783	# coro crashes during coro_state_free->destroy here.	3869	# coro crashes during coro_state_free->destroy here.
2784		3870
2785	$RELOAD_WATCHER ||= Event->timer (	3871	$RELOAD_WATCHER ||= cf::async {
2786	reentrant => 0,	3872	Coro::AIO::aio_wait cache_extensions;
2787	after => 0,	3873
2788	data => WF_AUTOCANCEL,	3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2789	cb => sub {
2790	do_reload_perl;	3875	do_reload_perl;
2791	undef $RELOAD_WATCHER;	3876	undef $RELOAD_WATCHER;
2792	},	3877	};
2793	);	3878	};
2794	}	3879	}
2795		3880
2796	register_command "reload" => sub {	3881	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2798		3883
2799	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	3885	$who->message ("reloading server.");
		3886	async {
		3887	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	3888	reload_perl;
		3889	};
2802	}	3890	}
2803	};	3891	};
2804		3892
2805	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2806		3894
…		…
2808		3896
2809	our @WAIT_FOR_TICK;	3897	our @WAIT_FOR_TICK;
2810	our @WAIT_FOR_TICK_BEGIN;	3898	our @WAIT_FOR_TICK_BEGIN;
2811		3899
2812	sub wait_for_tick {	3900	sub wait_for_tick {
2813	return unless $TICK_WATCHER->is_active;
2814	return if $Coro::current == $Coro::main;	3901	return if tick_inhibit || $Coro::current == $Coro::main;
2815		3902
2816	my $signal = new Coro::Signal;	3903	my $signal = new Coro::Signal;
2817	push @WAIT_FOR_TICK, $signal;	3904	push @WAIT_FOR_TICK, $signal;
2818	$signal->wait;	3905	$signal->wait;
2819	}	3906	}
2820		3907
2821	sub wait_for_tick_begin {	3908	sub wait_for_tick_begin {
2822	return unless $TICK_WATCHER->is_active;
2823	return if $Coro::current == $Coro::main;	3909	return if tick_inhibit || $Coro::current == $Coro::main;
2824		3910
2825	my $signal = new Coro::Signal;	3911	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3912	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3913	$signal->wait;
2828	}	3914	}
2829		3915
2830	$TICK_WATCHER = Event->timer (	3916	sub tick {
2831	reentrant => 0,
2832	parked => 1,
2833	prio => 0,
2834	at => $NEXT_TICK || $TICK,
2835	data => WF_AUTOCANCEL,
2836	cb => sub {
2837	if ($Coro::current != $Coro::main) {	3917	if ($Coro::current != $Coro::main) {
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3918	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3919	unless ++$bug_warning > 10;
2840	return;	3920	return;
2841	}	3921	}
2842		3922
2843	$NOW = Event::time;
2844
2845	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2846		3924
2847	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;
2849
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2852	Coro::async_pool {	3927	Coro::async_pool {
		3928	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	3929	write_runtime_sync
2854	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2855	};
2856	}	3931	};
		3932	}
2857		3933
2858	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#
2860
2861	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2863
2864	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;
2866
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2868	$sig->send;	3935	$sig->send;
2869	}	3936	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {	3937	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;	3938	$sig->send;
2872	}
2873
2874	_post_tick;
2875	},	3939	}
2876	);	3940
		3941	$LOAD = ($NOW - $TICK_START) / $TICK;
		3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3943
		3944	if (0) {
		3945	if ($NEXT_TICK) {
		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
		3950	}
		3951	}
2877		3952
2878	{	3953	{
2879	BDB::max_poll_time $TICK * 0.1;	3954	# configure BDB
2880	$BDB_POLL_WATCHER = Event->io (	3955
2881	reentrant => 0,
2882	fd => BDB::poll_fileno,
2883	poll => 'r',
2884	prio => 0,
2885	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,
2887	);
2888	BDB::min_parallel 8;	3956	BDB::min_parallel 8;
2889		3957	BDB::max_poll_reqs $TICK * 0.1;
2890	BDB::set_sync_prepare {	3958	$AnyEvent::BDB::WATCHER->priority (1);
2891	my $status;
2892	my $current = $Coro::current;
2893	(
2894	sub {
2895	$status = $!;
2896	$current->ready; undef $current;
2897	},
2898	sub {
2899	Coro::schedule while defined $current;
2900	$! = $status;
2901	},
2902	)
2903	};
2904		3959
2905	unless ($DB_ENV) {	3960	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	3961	$DB_ENV = BDB::db_env_create;
		3962	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3963	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3964	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3965	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3966	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		3967
2908	cf::sync_job {	3968	cf::sync_job {
2909	eval {	3969	eval {
2910	BDB::db_env_open	3970	BDB::db_env_open
2911	$DB_ENV,	3971	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3973	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	3975	0666;
2916		3976
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2918
2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2920	$DB_ENV->set_lk_detect;
2921	};	3978	};
2922		3979
2923	cf::cleanup "db_env_open(db): $@" if $@;	3980	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	3981	};
2925	}	3982	}
		3983
		3984	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3985	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3986	};
		3987	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3988	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3989	};
		3990	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3991	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3992	};
2926	}	3993	}
2927		3994
2928	{	3995	{
		3996	# configure IO::AIO
		3997
2929	IO::AIO::min_parallel 8;	3998	IO::AIO::min_parallel 8;
2930
2931	undef $Coro::AIO::WATCHER;
2932	IO::AIO::max_poll_time $TICK * 0.1;	3999	IO::AIO::max_poll_time $TICK * 0.1;
2933	$AIO_POLL_WATCHER = Event->io (	4000	undef $AnyEvent::AIO::WATCHER;
2934	reentrant => 0,
2935	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,
2937	poll => 'r',
2938	prio => 6,
2939	cb => \&IO::AIO::poll_cb,
2940	);
2941	}	4001	}
2942		4002
2943	my $_log_backtrace;	4003	my $_log_backtrace;
2944		4004
2945	sub _log_backtrace {	4005	sub _log_backtrace {
…		…
2948	$msg =~ s/\n//;	4008	$msg =~ s/\n//;
2949		4009
2950	# limit the # of concurrent backtraces	4010	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	4011	if ($_log_backtrace < 2) {
2952	++$_log_backtrace;	4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
2953	async {	4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
2954	my @bt = fork_call {	4017	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	4018	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	4021	or die "addr2line: $!";
…		…
2966	}	4029	}
2967		4030
2968	@funcs	4031	@funcs
2969	};	4032	};
2970		4033
2971	LOG llevInfo, "[ABT] $msg\n";	4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2972	LOG llevInfo, "[ABT] $_\n" for @bt;	4036	LOG llevInfo, "[ABT] $_\n" for @bt;
2973	--$_log_backtrace;	4037	--$_log_backtrace;
2974	};	4038	};
2975	} else {	4039	} else {
2976	LOG llevInfo, "[ABT] $msg\n";	4040	LOG llevInfo, "[ABT] $msg\n";
2977	LOG llevInfo, "[ABT] [suppressed]\n";	4041	LOG llevInfo, "[ABT] [suppressed]\n";
2978	}	4042	}
2979	}	4043	}
2980		4044
2981	# load additional modules	4045	# load additional modules
2982	use cf::pod;	4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
2983		4048
2984	END { cf::emergency_save }	4049	END { cf::emergency_save }
2985		4050
2986	1	4051	1
2987		4052

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