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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC vs.
Revision 1.527 by root, Fri Apr 23 04:32:47 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 0;#d#
71		118
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	119	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	120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	121	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
82		130
83	our %CFG;	131	our %CFG;
84		132
85	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
87		136
88	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
91		140
92	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		143
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
98		153
99	binmode STDOUT;	154	binmode STDOUT;
100	binmode STDERR;	155	binmode STDERR;
101		156
102	# read virtual server time, if available	157	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	159	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
107	}	162	}
		163
		164	eval "sub TICK() { $TICK } 1" or die;
108		165
109	mkdir $_	166	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		168
112	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
113		170
114	sub cf::map::normalise;	171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		187
116	#############################################################################	188	#############################################################################
117		189
118	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
119		191
…		…
155		227
156	The raw value load value from the last tick.	228	The raw value load value from the last tick.
157		229
158	=item %cf::CFG	230	=item %cf::CFG
159		231
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	233	from wherever your confdir points to.
162		234
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		236
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	238	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
169	=back	253	=back
170		254
171	=cut	255	=cut
172		256
173	BEGIN {	257	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	258	my $msg = join "", @_;
176		259
177	$msg .= "\n"	260	$msg .= "\n"
178	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
179		262
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		264
182	utf8::encode $msg;
183	LOG llevError, $msg;	265	LOG llevError, $msg;
184	};	266	};
185	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
186		281
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		289
194	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	291	# within the Safe compartment.
196	for my $pkg (qw(	292	for my $pkg (qw(
197	cf::global cf::attachable	293	cf::global cf::attachable
198	cf::object cf::object::player	294	cf::object cf::object::player
199	cf::client cf::player	295	cf::client cf::player
200	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
201	cf::map cf::party cf::region	298	cf::party cf::region
202	)) {	299	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	301	}
206		302
207	$Event::DIED = sub {	303	$EV::DIED = sub {
208	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
209	};	305	};
		306
		307	#############################################################################
210		308
211	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
212		310
213	=over 4	311	=over 4
214		312
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	332	$d
235	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
236	}	334	}
237		335
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
241		337
242	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
243		339
244	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
245		341
246	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
247		343
		344	=cut
		345
		346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		347
		348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
		363	}
		364
248	=item cf::lock_wait $string	365	=item cf::lock_wait $string
249		366
250	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
251		368
252	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
253		370
254	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
257	returned.	374	returned.
258		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
259	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
261		381
262	=item $locked = cf::lock_active $string	382	=item $locked = cf::lock_active $string
263		383
264	Return true if the lock is currently active, i.e. somebody has locked it.	384	Return true if the lock is currently active, i.e. somebody has locked it.
265		385
266	=cut	386	=cut
267		387
268	our %LOCK;	388	our $LOCKS = new Coro::SemaphoreSet;
269		389
270	sub lock_wait($) {	390	sub lock_wait($) {
271	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	392	}
279		393
280	sub lock_acquire($) {	394	sub lock_acquire($) {
281	my ($key) = @_;	395	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	396	}
293		397
294	sub lock_active($) {	398	sub lock_active($) {
295	my ($key) = @_;	399	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	400	}
299		401
300	sub freeze_mainloop {	402	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
302		404
303	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	406	}
		407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
305	};	472	}
306	$TICK_WATCHER->stop;	473	};
307	$guard	474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
308	}	488	}
309		489
310	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
311		491
312	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		497
318	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
319		499
320	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
321		501
322	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
325		506
326	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
329	fast or be very important.	510	fast or be very important.
…		…
332		513
333	sub sync_job(&) {	514	sub sync_job(&) {
334	my ($job) = @_;	515	my ($job) = @_;
335		516
336	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	518	my $time = AE::time;
338		519
339	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
341		522
342	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	524
344	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
345		526
346	my $busy = 1;	527	my $busy = 1;
347	my @res;	528	my @res;
348		529
349	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	532	@res = eval { $job->() };
351	warn $@ if $@;	533	warn $@ if $@;
352	undef $busy;	534	undef $busy;
353	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
354		536
355	while ($busy) {	537	while ($busy) {
356	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
357	}	542	}
		543	}
358		544
359	$time = Event::time - $time;	545	my $time = AE::time - $time;
360		546
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	547	$TICK_START += $time; # do not account sync jobs to server load
365		548
366	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
367	} else {	550	} else {
368	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
369		552
…		…
389	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
390		573
391	$coro	574	$coro
392	}	575	}
393		576
394	sub write_runtime {	577	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		578
397	# first touch the runtime file to show we are still running:	579	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
399		583
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	584	=cut
401	utime undef, undef, $fh;	585
		586	sub fork_call(&@) {
		587	my ($cb, @args) = @_;
		588
		589	# we seemingly have to make a local copy of the whole thing,
		590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
		592
		593	my @res = Coro::Util::fork_eval {
		594	reset_signals;
		595	&$cb
		596	}, @args;
		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
		602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
402	}	666	};
		667	cf::cleanup "db_open(db): $@" if $@;
403		668
404	my $guard = cf::lock_acquire "write_runtime";	669	$db
		670	}
405		671
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	672	our $DB;
407	or return;
408		673
409	my $value = $cf::RUNTIME + 90 + 10;	674	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	675	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	676	$DB ||= db_table "db";
		677	};
		678	}
412		679
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	680	sub db_get($$) {
414	and return;	681	my $key = "$_[0]/$_[1]";
415		682
416	# always fsync - this file is important	683	cf::sync_job {
417	aio_fsync $fh	684	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		685
420	# touch it again to show we are up-to-date	686	$! ? ()
421	utime undef, undef, $fh;	687	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
432	}	764	}
433		765
434	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
435		767
436	Log a datalog packet of the given type with the given key-value pairs.	768	Log a datalog packet of the given type with the given key-value pairs.
…		…
448		780
449	#############################################################################	781	#############################################################################
450		782
451	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
452		784
453	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
456		788
457	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	791	Deliantra).
460		792
461	=over 4	793	=over 4
462		794
463	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
464		796
…		…
508	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
509		841
510	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
512		844
513	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
515		847
516	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
517		849
518	=over 4	850	=over 4
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
628		960
629	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		965
634	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	967	my $pkg = shift @arg;
636		968
637	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
667	}	999	}
668		1000
669	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
670	} else {	1002	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	1004	}
673		1005
674	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
675	}	1007	}
676		1008
…		…
678	if (ref $_[0]) {	1010	if (ref $_[0]) {
679	_object_attach @_;	1011	_object_attach @_;
680	} else {	1012	} else {
681	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
682	}	1014	}
		1015	_recalc_want;
683	};	1016	};
684		1017
685	# all those should be optimised	1018	# all those should be optimised
686	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
691	reattach ($obj);	1024	reattach ($obj);
692	} else {	1025	} else {
693	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
694	}	1027	}
		1028	_recalc_want;
695	};	1029	};
696		1030
697	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
699		1033
…		…
714	";	1048	";
715	die if $@;	1049	die if $@;
716	}	1050	}
717		1051
718	our $override;	1052	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1054
721	sub override {	1055	sub override {
722	$override = 1;	1056	$override = 1;
723	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
724	}	1058	}
725		1059
726	sub do_invoke {	1060	sub do_invoke {
727	my $event = shift;	1061	my $event = shift;
728	my $callbacks = shift;	1062	my $callbacks = shift;
729		1063
730	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
731		1065
732	local $override;	1066	local $override;
733		1067
734	for (@$callbacks) {	1068	for (@$callbacks) {
735	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
744	}	1078	}
745		1079
746	0	1080	0
747	}	1081	}
748		1082
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1084
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1086
753	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
754		1088
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1092
759	=back	1093	=back
760		1094
761	=cut	1095	=cut
762		1096
763	#############################################################################	1097	#############################################################################
764	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
765		1141
766	sub reattach {	1142	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1144	my ($obj) = @_;
769		1145
		1146	# no longer needed after getting rid of delete_package?
770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
771		1148
772	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
773		1150
774	@$registry = ();	1151	@$registry = ();
775		1152
…		…
790	cf::attachable->attach (	1167	cf::attachable->attach (
791	prio => -1000000,	1168	prio => -1000000,
792	on_instantiate => sub {	1169	on_instantiate => sub {
793	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
794		1171
795	$data = from_json $data;	1172	$data = decode_json $data;
796		1173
797	for (@$data) {	1174	for (@$data) {
798	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
799		1176
800	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1193	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
818		1195
819	sync_job {	1196	sync_job {
820	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
823		1202
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	aio_fsync $fh if $cf::USE_FSYNC;	1206	if ($cf::USE_FSYNC) {
		1207	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;
		1208	aio_fsync $fh;
		1209	}
828	close $fh;	1210	aio_close $fh;
829		1211
830	if (@$objs) {	1212	if (@$objs) {
831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
832	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
835	aio_fsync $fh if $cf::USE_FSYNC;	1217	if ($cf::USE_FSYNC) {
		1218	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;
		1219	aio_fsync $fh;
		1220	}
836	close $fh;	1221	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
838	}	1223	}
839	} else {	1224	} else {
840	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
841	}	1226	}
842		1227
843	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1232	} else {
845	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
846	}	1234	}
847	} else {	1235	} else {
848	aio_unlink $filename;	1236	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
850	}	1238	}
851	}	1239	};
852	}	1240	}
853		1241
854	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
856		1244
…		…
868	or return;	1256	or return;
869		1257
870	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
872	or return;	1260	or return;
		1261
873	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
874	}	1264	}
875		1265
		1266	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
878	return ($data, $av);	1271	($data, $av)
879	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
880		1279
881	#############################################################################	1280	#############################################################################
882	# command handling &c	1281	# command handling &c
883		1282
884	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1297	}
899		1298
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1300
902	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
903		1306
904	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
905	called.	1308	called.
906		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
907	=cut	1321	=cut
908		1322
909	sub register_extcmd {	1323	sub register_extcmd {
910	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
911		1325
912	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
913	}	1327	}
914		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
915	cf::player->attach (	1337	cf::player->attach (
916	on_command => sub {	1338	on_unknown_command => sub {
917	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
918		1340
919	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
920	or return;	1342	or return;
921		1343
…		…
926	cf::override;	1348	cf::override;
927	},	1349	},
928	on_extcmd => sub {	1350	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
930		1352
931	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1354
933	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
939	} else {	1370	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1372	}
942		1373
943	cf::override;	1374	cf::override;
944	},	1375	},
945	);	1376	);
946		1377
		1378	# "readahead" all extensions
947	sub load_extension {	1379	sub cache_extensions {
948	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
949		1381
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1385	}
975	die $@;
976	}	1386	};
977		1387
978	push @EXTS, $pkg;	1388	$grp
979	}	1389	}
980		1390
981	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
982	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1396	next unless -r $path;
984	eval {	1397
985	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
986	1	1461	}
987	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
988	}	1472	};
989	}	1473	}
990		1474
991	#############################################################################	1475	#############################################################################
992		1476
		1477	=back
		1478
993	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
994		1480
995	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
996		1482
997	=cut	1483	=cut
998		1484
999	package cf::player;	1485	package cf::player;
1000		1486
1001	use Coro::AIO;	1487	use Coro::AIO;
1002		1488
1003	=head3 cf::player	1489	=head3 cf::player
1004		1490
1005	=over 4	1491	=over 4
		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
1006		1506
1007	=item cf::player::find $login	1507	=item cf::player::find $login
1008		1508
1009	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
1010		1510
…		…
1029		1529
1030	sub exists($) {	1530	sub exists($) {
1031	my ($login) = @_;	1531	my ($login) = @_;
1032		1532
1033	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
1035	}	1535	}
1036		1536
1037	sub find($) {	1537	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1539	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1550
1051	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
1052	or return;	1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
1053	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1054	}	1560	}
1055	}	1561	}
1056	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
1057		1576
1058	sub save($) {	1577	sub save($) {
1059	my ($pl) = @_;	1578	my ($pl) = @_;
1060		1579
1061	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1066	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1067		1586
1068	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1070		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
1071	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1072	Coro::cede;	1596	cf::cede_to_tick;
1073	}	1597	}
1074		1598
1075	sub new($) {	1599	sub new($) {
1076	my ($login) = @_;	1600	my ($login) = @_;
1077		1601
…		…
1083	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1084		1608
1085	$self	1609	$self
1086	}	1610	}
1087		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
1088	=item $pl->quit_character	1622	=item $pl->quit_character
1089		1623
1090	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1092		1626
…		…
1096	my ($pl) = @_;	1630	my ($pl) = @_;
1097		1631
1098	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1099		1633
1100	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1101	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1102		1636
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1107		1643
1108	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1681	or return [];
1146		1682
1147	my @logins;	1683	my @logins;
1148		1684
1149	for my $login (@$dirs) {	1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1153		1695
1154	utf8::decode $login;	1696	utf8::decode $login;
1155	push @logins, $login;	1697	push @logins, $login;
1156	}	1698	}
1157		1699
1158	\@logins	1700	\@logins
1159	}	1701	}
1160		1702
1161	=item $player->maps	1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
1162		1706
1163	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1164	player. May block.	1708	player. May block.
1165		1709
1166	=cut	1710	=cut
…		…
1184	}	1728	}
1185		1729
1186	\@paths	1730	\@paths
1187	}	1731	}
1188		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1189	=item $player->ext_reply ($msgid, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1190		1738
1191	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1192		1740
1193	=cut	1741	=cut
1194		1742
1195	sub ext_reply($$%) {	1743	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1197		1745
1198	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1747	}
1202		1748
1203	=item $player->ext_event ($type, %msg)	1749	=item $player->ext_msg ($type, @msg)
1204		1750
1205	Sends an ext event to the client.	1751	Sends an ext event to the client.
1206		1752
1207	=cut	1753	=cut
1208		1754
1209	sub ext_event($$%) {	1755	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1756	my ($self, $type, @msg) = @_;
1211		1757
1212	$self->ns->ext_event ($type, %msg);	1758	$self->ns->ext_msg ($type, @msg);
1213	}	1759	}
1214		1760
1215	=head3 cf::region	1761	=head3 cf::region
1216		1762
1217	=over 4	1763	=over 4
…		…
1220		1766
1221	package cf::region;	1767	package cf::region;
1222		1768
1223	=item cf::region::find_by_path $path	1769	=item cf::region::find_by_path $path
1224		1770
1225	Tries to decuce the probable region for a map knowing only its path.	1771	Tries to decuce the likely region for a map knowing only its path.
1226		1772
1227	=cut	1773	=cut
1228		1774
1229	sub find_by_path($) {	1775	sub find_by_path($) {
1230	my ($path) = @_;	1776	my ($path) = @_;
1231		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
1232	my ($match, $specificity);	1780	my ($match, $specificity);
1233		1781
1234	for my $region (list) {	1782	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1783	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1784	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1785	if $region->specificity > $specificity;
1238	}	1786	}
1239	}	1787	}
1240		1788
…		…
1261	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1263		1811
1264	sub generate_random_map {	1812	sub generate_random_map {
1265	my ($self, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1816
1266	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1818	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1271	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1272	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1296		1847
1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1298	}	1849	}
1299		1850
1300	# also paths starting with '/'	1851	# also paths starting with '/'
1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1302		1853
1303	sub thawer_merge {	1854	sub thawer_merge {
1304	my ($self, $merge) = @_;	1855	my ($self, $merge) = @_;
1305		1856
1306	# we have to keep some variables in memory intact	1857	# we have to keep some variables in memory intact
1307	local $self->{path};	1858	local $self->{path};
1308	local $self->{load_path};	1859	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1860
1312	$self->SUPER::thawer_merge ($merge);	1861	$self->SUPER::thawer_merge ($merge);
1313	}	1862	}
1314		1863
1315	sub normalise {	1864	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1363	return $self;	1912	return $self;
1364	}	1913	}
1365	}	1914	}
1366		1915
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1917	()
1369	}	1918	}
1370		1919
1371	sub init {	1920	sub init {
1372	my ($self) = @_;	1921	my ($self) = @_;
…		…
1394		1943
1395	# the temporary/swap location	1944	# the temporary/swap location
1396	sub save_path {	1945	sub save_path {
1397	my ($self) = @_;	1946	my ($self) = @_;
1398		1947
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1949	"$TMPDIR/$path.map"
1401	}	1950	}
1402		1951
1403	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1404	sub uniq_path {	1953	sub uniq_path {
1405	my ($self) = @_;	1954	my ($self) = @_;
1406		1955
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1957	"$UNIQUEDIR/$path"
1409	}	1958	}
1410		1959
1411	# and all this just because we cannot iterate over	1960	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1961	my ($self) = @_;
1415		1962
1416	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1418	}	1966	}
1419		1967
1420	sub unlink_save {	1968	sub unlink_save {
1421	my ($self) = @_;	1969	my ($self) = @_;
1422		1970
…		…
1427		1975
1428	sub load_header_from($) {	1976	sub load_header_from($) {
1429	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1430		1978
1431	utf8::encode $path;	1979	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	or return;	1981	or return;
		1982
		1983	$self->_load_header ($f)
		1984	or return;
		1985
		1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
1437		1988
1438	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1439		1990
1440	1	1991	1
1441	}	1992	}
…		…
1480	$self->load_header_orig	2031	$self->load_header_orig
1481	or return;	2032	or return;
1482	$self->prepare_orig;	2033	$self->prepare_orig;
1483	}	2034	}
1484		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
1485	$self->default_region (cf::region::find_by_path $self->{path})	2039	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	2040	unless $self->default_region;
1487		2041
1488	1	2042	1
1489	}	2043	}
…		…
1492	sub find {	2046	sub find {
1493	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1494		2048
1495	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1496		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1498		2053
1499	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1502	or return;	2056	or return;
1503		2057
1504	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1505		2059
1506	$map->load_header	2060	$map->load_header
1507	or return;	2061	or return;
1508		2062
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2064	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1512	$map->reset;	2068	$map->reset;
1513	undef $guard;
1514	return find $path;	2069	return find $path;
1515	}	2070	}
1516		2071
1517	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1518	}	2073	}
1519	}	2074	}
1520		2075
1521	sub pre_load { }	2076	sub pre_load { }
1522	sub post_load { }	2077	#sub post_load { } # XS
1523		2078
1524	sub load {	2079	sub load {
1525	my ($self) = @_;	2080	my ($self) = @_;
1526		2081
1527	local $self->{deny_reset} = 1; # loading can take a long time	2082	local $self->{deny_reset} = 1; # loading can take a long time
1528		2083
1529	my $path = $self->{path};	2084	my $path = $self->{path};
1530		2085
1531	{	2086	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1533		2088
		2089	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2091
1536	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1537		2093
1538	$self->alloc;	2094	$self->alloc;
1539		2095
1540	$self->pre_load;	2096	$self->pre_load;
1541	Coro::cede;	2097	cf::cede_to_tick;
1542		2098
		2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2101	$self->_load_objects ($f)
1544	or return;	2102	or return;
1545		2103
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1547	if delete $self->{load_original};	2105	if delete $self->{load_original};
1548		2106
1549	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2108	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2111	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1554	}	2115	}
1555	}	2116	}
1556		2117
1557	Coro::cede;	2118	$f->resolve_delayed_derefs;
		2119
		2120	cf::cede_to_tick;
1558	# now do the right thing for maps	2121	# now do the right thing for maps
1559	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2124	unless $self->difficulty;
1562	Coro::cede;	2125	cf::cede_to_tick;
1563		2126
1564	unless ($self->{deny_activate}) {	2127	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2128	$self->decay_objects;
1566	$self->fix_auto_apply;	2129	$self->fix_auto_apply;
1567	$self->update_buttons;	2130	$self->update_buttons;
1568	Coro::cede;	2131	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2132	$self->activate;
1572	}	2133	}
1573		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2139	}
1576		2140
1577	$self->post_load;	2141	$self->post_load;
1578	}	2142	}
1579		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
1580	sub customise_for {	2147	sub customise_for {
1581	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1582		2149
1583	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2151	if $self->per_player;
1585		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1586	$self	2156	$self
1587	}	2157	}
1588		2158
1589	# find and load all maps in the 3x3 area around a map	2159	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2160	sub load_neighbours {
1591	my ($map) = @_;	2161	my ($map) = @_;
1592		2162
1593	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1594		2164
1595	for (0 .. 3) {	2165	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1597	or next;	2167	or next;
1598	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1599	or next;	2169	or next;
1600	$neigh->load;	2170	$neigh->load;
1601		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2176	}
1605		2177
1606	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1608	or next;	2181	or next;
1609	$neigh->load;	2182	$neigh->load;
1610	}	2183	}
1611	}	2184	}
1612		2185
…		…
1617	}	2190	}
1618		2191
1619	sub do_load_sync {	2192	sub do_load_sync {
1620	my ($map) = @_;	2193	my ($map) = @_;
1621		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1622	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1623	}	2199	}
1624		2200
1625	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2202	our $MAP_PREFETCHER = undef;
1627		2203
1628	sub find_async {	2204	sub find_async {
1629	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1630		2206
1631	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1632		2208
1633	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2211	}
1636		2212
1637	undef $MAP_PREFETCH{$path};	2213	$MAP_PREFETCH{$path} |= $load;
		2214
1638	$MAP_PREFETCHER ||= cf::async {	2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
1639	while (%MAP_PREFETCH) {	2218	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2219	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2220	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2221	$map->load if $v;
		2222	}
1644		2223
1645	delete $MAP_PREFETCH{$path};	2224	delete $MAP_PREFETCH{$k};
1646	}	2225	}
1647	}	2226	}
1648	undef $MAP_PREFETCHER;	2227	undef $MAP_PREFETCHER;
1649	};	2228	};
1650	$MAP_PREFETCHER->prio (6);	2229	$MAP_PREFETCHER->prio (6);
1651		2230
1652	()	2231	()
1653	}	2232	}
1654		2233
		2234	# common code, used by both ->save and ->swapout
1655	sub save {	2235	sub _save {
1656	my ($self) = @_;	2236	my ($self) = @_;
1657
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1659		2237
1660	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1661		2239
1662	return unless $self->dirty;	2240	return unless $self->dirty;
1663		2241
…		…
1669	return if $self->{deny_save};	2247	return if $self->{deny_save};
1670		2248
1671	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1672		2250
1673	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1675	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1676		2257
1677	if ($uniq) {	2258	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2261	} else {
1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1682	}	2263	}
1683	}	2264	}
1684		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1685	sub swap_out {	2274	sub swap_out {
1686	my ($self) = @_;	2275	my ($self) = @_;
1687		2276
1688	# save first because save cedes
1689	$self->save;
1690
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1693	return if $self->players;	2281	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1695	return if $self->{deny_save};
1696		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1697	$self->clear;	2292	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2293	}
1700		2294
1701	sub reset_at {	2295	sub reset_at {
1702	my ($self) = @_;	2296	my ($self) = @_;
1703		2297
1704	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1707		2300
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2303
…		…
1721	my ($self) = @_;	2314	my ($self) = @_;
1722		2315
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2317
1725	return if $self->players;	2318	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2319
1728	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
1729		2321
1730	$self->in_memory (cf::MAP_SWAPPED);	2322	$self->in_memory (cf::MAP_SWAPPED);
1731		2323
1732	# need to save uniques path	2324	# need to save uniques path
1733	unless ($self->{deny_save}) {	2325	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2329	if $uniq;
1738	}	2330	}
1739		2331
1740	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1741		2333
		2334	$self->deactivate;
		2335	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2336	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2337
1746	$self->unlink_save;	2338	$self->unlink_save;
1747	$self->destroy;	2339	$self->destroy;
1748	}	2340	}
1749		2341
1750	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1751		2343
1752	sub nuke {	2344	sub nuke {
1753	my ($self) = @_;	2345	my ($self) = @_;
1754		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
1755	delete $cf::MAP{$self->path};	2350	delete $cf::MAP{$self->path};
1756		2351
1757	$self->unlink_save;	2352	$self->unlink_save;
1758		2353
1759	bless $self, "cf::map";	2354	bless $self, "cf::map::wrap";
1760	delete $self->{deny_reset};	2355	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2359
1765	$cf::MAP{$self->path} = $self;	2360	$cf::MAP{$self->path} = $self;
		2361	}
1766		2362
1767	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
		2364	}
		2365
		2366	=item $maps = cf::map::tmp_maps
		2367
		2368	Returns an arrayref with all map paths of currently instantiated and saved
		2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
		2374	[
		2375	map {
		2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item $maps = cf::map::random_maps
		2385
		2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
		2388
		2389	=cut
		2390
		2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
1768	}	2400	}
1769		2401
1770	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1771		2403
1772	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2405	instantiated unique items. May block.
1774		2406
1775	=cut	2407	=cut
1776		2408
1777	sub unique_maps() {	2409	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2410	[
1779	or return;	2411	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2412	utf8::decode $_;
1785	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2415	? ()
1788	push @paths, cf::map::normalise $_;	2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2418	]
1790
1791	\@paths
1792	}	2419	}
1793		2420
1794	package cf;	2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
		2448	}
		2449
		2450	\@maps
		2451	}
1795		2452
1796	=back	2453	=back
1797		2454
1798	=head3 cf::object	2455	=head3 cf::object
1799		2456
…		…
1803		2460
1804	=over 4	2461	=over 4
1805		2462
1806	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1807		2464
1808	Returns the inventory of the object _and_ their inventories, recursively.	2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
1809		2467
1810	=cut	2468	=cut
1811		2469
1812	sub inv_recursive_;	2470	sub inv_recursive_;
1813	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1816		2474
1817	sub inv_recursive {	2475	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1819	}	2477	}
1820		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
		2505	}
		2506
1821	package cf;	2507	package cf;
1822		2508
1823	=back	2509	=back
1824		2510
1825	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1832	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1834		2520
1835	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1836		2536
1837	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2538	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1842		2542
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2544
1845	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1847	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1850	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1851	}	2570	}
1852		2571
1853	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1854		2573
1855	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1868		2587
1869	=item $player_object->enter_link	2588	=item $player_object->enter_link
1870		2589
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2591
1873	The player should be reasonably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1874	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
1875		2596
1876	Will never block.	2597	Will never block.
1877		2598
1878	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1879		2600
…		…
1899	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1900	my ($self) = @_;	2621	my ($self) = @_;
1901		2622
1902	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1903		2624
		2625	++$self->{_link_recursion};
		2626
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2628
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1908		2631
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1910	}	2633	}
1911		2634
1912	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1914		2639
1915	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1916		2641
1917	unless ($map) {	2642	unless ($map) {
1918	# restore original map position	2643	# restore original map position
…		…
1929	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1930	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1931		2656
1932	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1933	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1934	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1935		2660
1936	$map->load;	2661	$map->load;
1937	$map->load_diag;	2662	$map->load_neighbours;
1938		2663
1939	return unless $self->contr->active;	2664	return unless $self->contr->active;
1940	$self->activate_recursive;
1941		2665
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2667	if ($self->enter_map ($map, $x, $y)) {
1944	}	2668	# entering was successful
1945		2669	delete $self->{_link_recursion};
1946	cf::player->attach (	2670	# only activate afterwards, to support waiting in hooks
1947	on_logout => sub {	2671	$self->activate_recursive;
1948	my ($pl) = @_;
1949
1950	# abort map switching before logout
1951	if ($pl->ob->{_link_pos}) {
1952	cf::sync_job {
1953	$pl->ob->leave_link
1954	};
1955	}
1956	},	2672	}
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2673
1960	# try to abort aborted map switching on player login :)	2674	}
1961	# should happen only on crashes
1962	if ($pl->ob->{_link_pos}) {
1963	$pl->ob->enter_link;
1964	(async {
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977		2675
1978	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1979		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1980	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1981		2690
1982	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2702
1985	$self->enter_link;	2703	$self->enter_link;
1986		2704
1987	(async {	2705	(async {
		2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
1988	my $map = eval {	2727	my $map = eval {
1989	my $map = cf::map::find $path;	2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
		2733	} else {
		2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
		2736
1991	$map	2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
1992	} or	2743	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1996	})->prio (1);	2751	})->prio (1);
1997	}	2752	}
1998		2753
1999	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
2000		2755
…		…
2020	}	2775	}
2021		2776
2022	sub prepare_random_map {	2777	sub prepare_random_map {
2023	my ($exit) = @_;	2778	my ($exit) = @_;
2024		2779
2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
2026
2027	# all this does is basically replace the /! path by	2780	# all this does is basically replace the /! path by
2028	# a new random map path (?random/...) with a seed	2781	# a new random map path (?random/...) with a seed
2029	# that depends on the exit object	2782	# that depends on the exit object
2030		2783
2031	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
…		…
2033	if ($exit->map) {	2786	if ($exit->map) {
2034	$rmp->{region} = $exit->region->name;	2787	$rmp->{region} = $exit->region->name;
2035	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
2036	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
2037	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
2038	}	2793	}
2039		2794
2040	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
2041		2796
2042	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2043	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
2044	my $meta = "$RANDOMDIR/$md5.meta";	2799	my $meta = "$RANDOMDIR/$md5.meta";
2045		2800
2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2047	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
2048	undef $fh;	2803	undef $fh;
2049	aio_rename "$meta~", $meta;	2804	aio_rename "$meta~", $meta;
2050		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
2051	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
2052	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
2053	}	2812	}
2054	}	2813	}
2055		2814
2056	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
2057	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
2058		2817
2059	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
2060		2819
2061	if ($exit->slaying eq "/!") {
2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
2063	# the problem is that $exit might not survive long enough
2064	# so it needs to be done right now, right here
2065	cf::sync_job { prepare_random_map $exit };
2066	}
2067
2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2069	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;
2071
2072	$self->enter_link;	2820	$self->enter_link;
2073		2821
2074	(async {	2822	(async {
2075	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
2076	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
		2832	prepare_random_map $exit
		2833	if $exit->slaying eq "/!";
		2834	}
		2835
		2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
		2839
2077	$self->goto ($slaying, $hp, $sp);	2840	$self->goto ($map, $x, $y);
2078		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
2079	1;	2846	1
2080	}) {	2847	}) {
2081	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
2082	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
2083	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
2084	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
2085		2852
2086	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
…		…
2105		2872
2106	utf8::encode $text;	2873	utf8::encode $text;
2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2108	}	2875	}
2109		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
2110	=item $client->ext_event ($type, %msg)	3064	=item $client->ext_msg ($type, @msg)
2111		3065
2112	Sends an exti event to the client.	3066	Sends an ext event to the client.
2113		3067
2114	=cut	3068	=cut
2115		3069
2116	sub cf::client::ext_event($$%) {	3070	sub cf::client::ext_msg($$@) {
2117	my ($self, $type, %msg) = @_;	3071	my ($self, $type, @msg) = @_;
2118		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
2119	$msg{msgtype} = "event_$type";	3076	push @msg, msgtype => "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
2121	}	3097	}
2122		3098
2123	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
2124		3100
2125	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2127	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2128		3104
2129	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
2130	reliable at some point in the future.	3106	become reliable at some point in the future.
2131		3107
2132	=cut	3108	=cut
2133		3109
2134	sub cf::client::query {	3110	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	3119	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		3121
2146	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
2148	}	3126	}
2149		3127
2150	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
2151	on_reply => sub {	3134	on_reply => sub {
2152	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
2153		3136
2154	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
2155	# get handled first	3138	# get handled first
…		…
2167	} else {	3150	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	3152	}
2170	}	3153	}
2171	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
2172	);	3181	);
2173		3182
2174	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
2175		3184
2176	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
2192		3201
2193	$coro	3202	$coro
2194	}	3203	}
2195		3204
2196	cf::client->attach (	3205	cf::client->attach (
2197	on_destroy => sub {	3206	on_client_destroy => sub {
2198	my ($ns) = @_;	3207	my ($ns) = @_;
2199		3208
2200	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2201	},	3210	},
2202	);	3211	);
…		…
2217	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
2218	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
2219		3228
2220	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
2221		3230
2222	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
2223		3236
2224	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2225		3238
2226	=pod	3239	=pod
2227		3240
2228	The following functions and methods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2229		3242
2230	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
2231	cf::object::player player	3248	cf::object::player
2232	cf::player peaceful	3249	player
2233	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2234		3256
2235	=cut	3257	=cut
2236		3258
2237	for (	3259	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
2239	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2241	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2242	) {	3266	) {
2243	no strict 'refs';	3267	no strict 'refs';
2244	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2245	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2263		3287
2264	my $qcode = $code;	3288	my $qcode = $code;
2265	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2266	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2267		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2268	local $_;	3295	local $_;
2269	local @safe::cf::_safe_eval_args = values %vars;
2270		3296
2271	my $eval =	3297	my $eval =
2272	"do {\n"	3298	"do {\n"
2273	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2274	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2275	. $code	3301	. $code
2276	. "\n}"	3302	. "\n}"
2277	;	3303	;
2278		3304
		3305	if ($CFG{safe_eval}) {
2279	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2280	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2281	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
2282		3314
2283	if ($@) {	3315	if ($@) {
2284	warn "$@";	3316	warn "$@";
2285	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2286	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2305	=cut	3337	=cut
2306		3338
2307	sub register_script_function {	3339	sub register_script_function {
2308	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2309		3341
2310	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2311	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2312	}	3344	}
2313		3345
2314	=back	3346	=back
2315		3347
2316	=cut	3348	=cut
2317
2318	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491		3349
2492	#############################################################################	3350	#############################################################################
2493	# the server's init and main functions	3351	# the server's init and main functions
2494		3352
2495	sub load_facedata($) {	3353	sub load_facedata($) {
2496	my ($path) = @_;	3354	my ($path) = @_;
		3355
		3356	# HACK to clear player env face cache, we need some signal framework
		3357	# for this (global event?)
		3358	%ext::player_env::MUSIC_FACE_CACHE = ();
		3359
		3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2497		3361
2498	warn "loading facedata from $path\n";	3362	warn "loading facedata from $path\n";
2499		3363
2500	my $facedata;	3364	my $facedata;
2501	0 < aio_load $path, $facedata	3365	0 < aio_load $path, $facedata
…		…
2504	$facedata = Coro::Storable::thaw $facedata;	3368	$facedata = Coro::Storable::thaw $facedata;
2505		3369
2506	$facedata->{version} == 2	3370	$facedata->{version} == 2
2507	or cf::cleanup "$path: version mismatch, cannot proceed.";	3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2508		3372
		3373	# patch in the exptable
		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3375	$facedata->{resource}{"res/exp_table"} = {
		3376	type => FT_RSRC,
		3377	data => $exp_table,
		3378	hash => (Digest::MD5::md5 $exp_table),
		3379	};
		3380	cf::cede_to_tick;
		3381
2509	{	3382	{
2510	my $faces = $facedata->{faceinfo};	3383	my $faces = $facedata->{faceinfo};
2511		3384
2512	while (my ($face, $info) = each %$faces) {	3385	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3387
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3388	cf::face::set_visibility $idx, $info->{visibility};
		3389	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2517	Coro::cede;	3392
		3393	cf::cede_to_tick;
2518	}	3394	}
2519		3395
2520	while (my ($face, $info) = each %$faces) {	3396	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	3397	next unless $info->{smooth};
		3398
2522	my $idx = cf::face::find $face	3399	my $idx = cf::face::find $face
2523	or next;	3400	or next;
		3401
2524	if (my $smooth = cf::face::find $info->{smooth}) {	3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	3405	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	3407	}
2529	Coro::cede;	3408
		3409	cf::cede_to_tick;
2530	}	3410	}
2531	}	3411	}
2532		3412
2533	{	3413	{
2534	my $anims = $facedata->{animinfo};	3414	my $anims = $facedata->{animinfo};
2535		3415
2536	while (my ($anim, $info) = each %$anims) {	3416	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	3418	cf::cede_to_tick;
2539	}	3419	}
2540		3420
2541	cf::anim::invalidate_all; # d'oh	3421	cf::anim::invalidate_all; # d'oh
2542	}	3422	}
2543		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
2544	1	3443	1
2545	}	3444	}
2546		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
2547	sub reload_regions {	3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
2548	load_resource_file "$MAPDIR/regions"	3489	load_resource_file "$MAPDIR/regions"
2549	or die "unable to load regions file\n";	3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
2550	}	3496	}
2551		3497
2552	sub reload_facedata {	3498	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	3499	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	3500	or die "unable to load facedata\n";
…		…
2565	}	3511	}
2566		3512
2567	sub reload_resources {	3513	sub reload_resources {
2568	warn "reloading resource files...\n";	3514	warn "reloading resource files...\n";
2569		3515
2570	reload_regions;
2571	reload_facedata;	3516	reload_facedata;
2572	reload_archetypes;	3517	reload_archetypes;
		3518	reload_regions;
2573	reload_treasures;	3519	reload_treasures;
2574		3520
2575	warn "finished reloading resource files\n";	3521	warn "finished reloading resource files\n";
2576	}	3522	}
2577		3523
2578	sub init {	3524	sub reload_config {
2579	reload_resources;	3525	warn "reloading config file...\n";
2580	}
2581		3526
2582	sub cfg_load {
2583	open my $fh, "<:utf8", "$CONFDIR/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2584	or return;	3528	or return;
2585		3529
2586	local $/;	3530	local $/;
2587	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2588		3532
2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2590		3534
2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2593		3537
2594	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2597	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2598	};	3542	};
2599	warn $@ if $@;	3543	warn $@ if $@;
2600	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2601	}	3575	}
2602		3576
2603	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2604	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2605	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2607	(async {	3590	(async {
2608	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
2609	})->prio (Coro::PRIO_MAX);	3593	})->prio (Coro::PRIO_MAX);
2610	};	3594	};
2611		3595
2612	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
		3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
2613	db_init;	3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2614	load_extensions;	3619	load_extensions;
2615		3620
2616	$TICK_WATCHER->start;	3621	utime time, time, $RUNTIMEFILE;
2617	Event::loop;	3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2618	}	3634	}
2619		3635
2620	#############################################################################	3636	#############################################################################
2621	# initialisation and cleanup	3637	# initialisation and cleanup
2622		3638
2623	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2624	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2625	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2626	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2627	reentrant => 0,
2628	data => WF_AUTOCANCEL,
2629	signal => $signal,
2630	prio => 0,
2631	cb => sub {
2632	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2633	},
2634	);	3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
2635	}	3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
2636	}	3735	}
2637		3736
2638	sub emergency_save() {	3737	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2640		3739
2641	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2642		3741
2643	cf::sync_job {	3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
2644	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2645	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2646	# and maps saved/destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2647	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2648	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2649	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2650	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2651	$pl->save;	3756	$pl->save;
2652	}	3757	}
2653	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2654		3759
2655	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2656	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2657	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2658	$map->valid or next;	3763	$map->valid or next;
2659	$map->save;	3764	$map->save;
2660	}	3765	}
2661	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
2662		3767
2663	warn "begin emergency database checkpoint\n";	3768	warn "emergency_perl_save: begin database checkpoint\n";
2664	BDB::db_env_txn_checkpoint $DB_ENV;	3769	BDB::db_env_txn_checkpoint $DB_ENV;
2665	warn "end emergency database checkpoint\n";	3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2666	};	3775	};
2667		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2668	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2669	}	3783	}
2670		3784
2671	sub post_cleanup {	3785	sub post_cleanup {
2672	my ($make_core) = @_;	3786	my ($make_core) = @_;
2673		3787
2674	warn Carp::longmess "post_cleanup backtrace"	3788	warn Carp::longmess "post_cleanup backtrace"
2675	if $make_core;	3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
2676	}	3818	}
2677		3819
2678	sub do_reload_perl() {	3820	sub do_reload_perl() {
2679	# can/must only be called in main	3821	# can/must only be called in main
2680	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2681	warn "can only reload from main coroutine";	3823	warn "can only reload from main coroutine";
2682	return;	3824	return;
2683	}	3825	}
2684		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2685	warn "reloading...";	3832	warn "reloading...";
2686		3833
2687	warn "entering sync_job";	3834	warn "entering sync_job";
2688		3835
2689	cf::sync_job {	3836	cf::sync_job {
2690	cf::write_runtime; # external watchdog should not bark	3837	cf::write_runtime_sync; # external watchdog should not bark
2691	cf::emergency_save;	3838	cf::emergency_save;
2692	cf::write_runtime; # external watchdog should not bark	3839	cf::write_runtime_sync; # external watchdog should not bark
2693		3840
2694	warn "syncing database to disk";	3841	warn "syncing database to disk";
2695	BDB::db_env_txn_checkpoint $DB_ENV;	3842	BDB::db_env_txn_checkpoint $DB_ENV;
2696		3843
2697	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2698		3845
2699	warn "cancelling all WF_AUTOCANCEL watchers";
2700	for (Event::all_watchers) {
2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2702	}
2703
2704	warn "flushing outstanding aio requests";	3846	warn "flushing outstanding aio requests";
2705	for (;;) {
2706	BDB::flush;
2707	IO::AIO::flush;
2708	Coro::cede;
2709	last unless IO::AIO::nreqs || BDB::nreqs;	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2710	warn "iterate...";	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2711	}
2712
2713	++$RELOAD;
2714
2715	warn "cancelling all extension coros";
2716	$_->cancel for values %EXT_CORO;
2717	%EXT_CORO = ();
2718
2719	warn "removing commands";
2720	%COMMAND = ();
2721
2722	warn "removing ext commands";
2723	%EXTCMD = ();
2724
2725	warn "unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";
2728
2729	if (my $cb = $pkg->can ("unload")) {
2730	eval {
2731	$cb->($pkg);
2732	1
2733	} or warn "$pkg unloaded, but with errors: $@";
2734	}	3849	}
2735		3850
2736	warn "... nuking $pkg";	3851	warn "cancelling all extension coros";
2737	Symbol::delete_package $pkg;	3852	$_->cancel for values %EXT_CORO;
2738	}	3853	%EXT_CORO = ();
2739		3854
2740	warn "unloading all perl modules loaded from $LIBDIR";	3855	warn "removing commands";
2741	while (my ($k, $v) = each %INC) {	3856	%COMMAND = ();
2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2743		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2744	warn "... unloading $k";	3864	warn "... unloading $pkg";
2745	delete $INC{$k};
2746		3865
2747	$k =~ s/\.pm$//;
2748	$k =~ s/\//::/g;
2749
2750	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2751	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2752	}	3875	}
2753		3876
2754	Symbol::delete_package $k;	3877	warn "unloading all perl modules loaded from $LIBDIR";
		3878	while (my ($k, $v) = each %INC) {
		3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
2755	}	3892	}
2756		3893
2757	warn "getting rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2758	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2760		3897
2761	warn "unloading cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2762	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
2763	delete $INC{"cf/pod.pm"};	3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2764		3901
2765	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2766	# and global variables created in xs	3903	# and global variables created in xs
2767	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2768		3905
2769	warn "unload completed, starting to reload now";	3906	warn "unload completed, starting to reload now";
2770		3907
2771	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2772	require cf;	3909	require cf;
2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2774		3911
2775	warn "loading config and database again";	3912	warn "loading config and database again";
2776	cf::cfg_load;	3913	cf::reload_config;
2777		3914
2778	warn "loading extensions";	3915	warn "loading extensions";
2779	cf::load_extensions;	3916	cf::load_extensions;
2780		3917
		3918	if ($REATTACH_ON_RELOAD) {
2781	warn "reattaching attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2782	_global_reattach; # objects, sockets	3920	_global_reattach; # objects, sockets
2783	warn "reattaching attachments to maps";	3921	warn "reattaching attachments to maps";
2784	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
2785	warn "reattaching attachments to players";	3923	warn "reattaching attachments to players";
2786	reattach $_ for values %PLAYER;	3924	reattach $_ for values %PLAYER;
		3925	}
2787		3926
		3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
		3929
2788	warn "leaving sync_job";	3930	warn "leaving sync_job";
2789		3931
2790	1	3932	1
2791	} or do {	3933	} or do {
2792	warn $@;	3934	warn $@;
2793	warn "error while reloading, exiting.";	3935	cf::cleanup "error while reloading, exiting.";
2794	exit 1;
2795	};	3936	};
2796		3937
2797	warn "reloaded";	3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
2798	};	3944	};
2799		3945
2800	our $RELOAD_WATCHER; # used only during reload	3946	our $RELOAD_WATCHER; # used only during reload
2801		3947
2802	sub reload_perl() {	3948	sub reload_perl() {
2803	# doing reload synchronously and two reloads happen back-to-back,	3949	# doing reload synchronously and two reloads happen back-to-back,
2804	# coro crashes during coro_state_free->destroy here.	3950	# coro crashes during coro_state_free->destroy here.
2805		3951
2806	$RELOAD_WATCHER ||= Event->timer (	3952	$RELOAD_WATCHER ||= cf::async {
2807	reentrant => 0,	3953	Coro::AIO::aio_wait cache_extensions;
2808	after => 0,	3954
2809	data => WF_AUTOCANCEL,	3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2810	cb => sub {
2811	do_reload_perl;	3956	do_reload_perl;
2812	undef $RELOAD_WATCHER;	3957	undef $RELOAD_WATCHER;
2813	},	3958	};
2814	);	3959	};
2815	}	3960	}
2816		3961
2817	register_command "reload" => sub {	3962	register_command "reload" => sub {
2818	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2819		3964
2820	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2821	$who->message ("reloading server.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
2822	async { reload_perl };	3969	reload_perl;
		3970	};
2823	}	3971	}
2824	};	3972	};
2825		3973
2826	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2827		3975
…		…
2829		3977
2830	our @WAIT_FOR_TICK;	3978	our @WAIT_FOR_TICK;
2831	our @WAIT_FOR_TICK_BEGIN;	3979	our @WAIT_FOR_TICK_BEGIN;
2832		3980
2833	sub wait_for_tick {	3981	sub wait_for_tick {
2834	return unless $TICK_WATCHER->is_active;
2835	return if $Coro::current == $Coro::main;	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2836		3983
2837	my $signal = new Coro::Signal;	3984	my $signal = new Coro::Signal;
2838	push @WAIT_FOR_TICK, $signal;	3985	push @WAIT_FOR_TICK, $signal;
2839	$signal->wait;	3986	$signal->wait;
2840	}	3987	}
2841		3988
2842	sub wait_for_tick_begin {	3989	sub wait_for_tick_begin {
2843	return unless $TICK_WATCHER->is_active;
2844	return if $Coro::current == $Coro::main;	3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2845		3991
2846	my $signal = new Coro::Signal;	3992	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3993	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3994	$signal->wait;
2849	}	3995	}
2850		3996
2851	$TICK_WATCHER = Event->timer (	3997	sub tick {
2852	reentrant => 0,
2853	parked => 1,
2854	prio => 0,
2855	at => $NEXT_TICK || $TICK,
2856	data => WF_AUTOCANCEL,
2857	cb => sub {
2858	if ($Coro::current != $Coro::main) {	3998	if ($Coro::current != $Coro::main) {
2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2860	unless ++$bug_warning > 10;	4000	unless ++$bug_warning > 10;
2861	return;	4001	return;
2862	}	4002	}
2863		4003
2864	$NOW = $tick_start = Event::time;
2865
2866	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2867		4005
2868	$RUNTIME += $TICK;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2869	$NEXT_TICK += $TICK;
2870		4007
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2872	$NEXT_RUNTIME_WRITE = $NOW + 10;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2873	Coro::async_pool {	4010	Coro::async_pool {
		4011	$Coro::current->{desc} = "runtime saver";
2874	write_runtime	4012	write_runtime_sync
2875	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2876	};
2877	}	4014	};
		4015	}
2878		4016
2879	# my $AFTER = Event::time;
2880	# warn $AFTER - $NOW;#d#
2881
2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2883	$sig->send;	4018	$sig->send;
2884	}	4019	}
2885	while (my $sig = shift @WAIT_FOR_TICK) {	4020	while (my $sig = shift @WAIT_FOR_TICK) {
2886	$sig->send;	4021	$sig->send;
2887	}	4022	}
2888		4023
2889	$NOW = Event::time;	4024	$LOAD = ($NOW - $TICK_START) / $TICK;
2890
2891	# if we are delayed by four ticks or more, skip them all
2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2893
2894	$TICK_WATCHER->at ($NEXT_TICK);
2895	$TICK_WATCHER->start;
2896
2897	$LOAD = ($NOW - $tick_start) / $TICK;
2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2899		4026
2900	_post_tick;	4027	if (0) {
2901		4028	if ($NEXT_TICK) {
2902		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
2903	},	4033	}
2904	);	4034	}
2905		4035
2906	{	4036	{
2907	BDB::max_poll_time $TICK * 0.1;	4037	# configure BDB
2908	$BDB_POLL_WATCHER = Event->io (	4038
2909	reentrant => 0,
2910	fd => BDB::poll_fileno,
2911	poll => 'r',
2912	prio => 0,
2913	data => WF_AUTOCANCEL,
2914	cb => \&BDB::poll_cb,
2915	);
2916	BDB::min_parallel 8;	4039	BDB::min_parallel 16;
2917		4040	BDB::max_poll_reqs $TICK * 0.1;
2918	BDB::set_sync_prepare {	4041	$AnyEvent::BDB::WATCHER->priority (1);
2919	my $status;
2920	my $current = $Coro::current;
2921	(
2922	sub {
2923	$status = $!;
2924	$current->ready; undef $current;
2925	},
2926	sub {
2927	Coro::schedule while defined $current;
2928	$! = $status;
2929	},
2930	)
2931	};
2932		4042
2933	unless ($DB_ENV) {	4043	unless ($DB_ENV) {
2934	$DB_ENV = BDB::db_env_create;	4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2935		4050
2936	cf::sync_job {	4051	cf::sync_job {
2937	eval {	4052	eval {
2938	BDB::db_env_open	4053	BDB::db_env_open
2939	$DB_ENV,	4054	$DB_ENV,
…		…
2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2943	0666;	4058	0666;
2944		4059
2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2946
2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2948	$DB_ENV->set_lk_detect;
2949	};	4061	};
2950		4062
2951	cf::cleanup "db_env_open(db): $@" if $@;	4063	cf::cleanup "db_env_open(db): $@" if $@;
2952	};	4064	};
2953	}	4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
2954	}	4076	}
2955		4077
2956	{	4078	{
		4079	# configure IO::AIO
		4080
2957	IO::AIO::min_parallel 8;	4081	IO::AIO::min_parallel 8;
2958
2959	undef $Coro::AIO::WATCHER;
2960	IO::AIO::max_poll_time $TICK * 0.1;	4082	IO::AIO::max_poll_time $TICK * 0.1;
2961	$AIO_POLL_WATCHER = Event->io (	4083	undef $AnyEvent::AIO::WATCHER;
2962	reentrant => 0,
2963	data => WF_AUTOCANCEL,
2964	fd => IO::AIO::poll_fileno,
2965	poll => 'r',
2966	prio => 6,
2967	cb => \&IO::AIO::poll_cb,
2968	);
2969	}	4084	}
2970		4085
2971	my $_log_backtrace;	4086	my $_log_backtrace;
2972		4087
2973	sub _log_backtrace {	4088	sub _log_backtrace {
…		…
2976	$msg =~ s/\n//;	4091	$msg =~ s/\n//;
2977		4092
2978	# limit the # of concurrent backtraces	4093	# limit the # of concurrent backtraces
2979	if ($_log_backtrace < 2) {	4094	if ($_log_backtrace < 2) {
2980	++$_log_backtrace;	4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
2981	async {	4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
2982	my @bt = fork_call {	4100	my @bt = fork_call {
2983	@addr = map { sprintf "%x", $_ } @addr;	4101	@addr = map { sprintf "%x", $_ } @addr;
2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2986	or die "addr2line: $!";	4104	or die "addr2line: $!";
…		…
2994	}	4112	}
2995		4113
2996	@funcs	4114	@funcs
2997	};	4115	};
2998		4116
2999	LOG llevInfo, "[ABT] $msg\n";	4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3000	LOG llevInfo, "[ABT] $_\n" for @bt;	4119	LOG llevInfo, "[ABT] $_\n" for @bt;
3001	--$_log_backtrace;	4120	--$_log_backtrace;
3002	};	4121	};
3003	} else {	4122	} else {
3004	LOG llevInfo, "[ABT] $msg\n";	4123	LOG llevInfo, "[ABT] $msg\n";
3005	LOG llevInfo, "[ABT] [suppressed]\n";	4124	LOG llevInfo, "[ABT] [suppressed]\n";
3006	}	4125	}
3007	}	4126	}
3008		4127
3009	# load additional modules	4128	# load additional modules
3010	use cf::pod;	4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
3011		4131
3012	END { cf::emergency_save }	4132	END { cf::emergency_save }
3013		4133
3014	1	4134	1
3015		4135

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