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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 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 = 1;
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
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		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 $REALLY_UNLOOP; # never set to true, please :)
		153
95	binmode STDOUT;	154	binmode STDOUT;
96	binmode STDERR;	155	binmode STDERR;
97		156
98	# read virtual server time, if available	157	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	159	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
103	}	162	}
		163
		164	eval "sub TICK() { $TICK } 1" or die;
104		165
105	mkdir $_	166	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		168
108	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
109		170
110	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::"} };
111		187
112	#############################################################################	188	#############################################################################
113		189
114	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
115		191
…		…
139		215
140	=item $cf::TICK	216	=item $cf::TICK
141		217
142	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
143		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
144	=item %cf::CFG	230	=item %cf::CFG
145		231
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	233	from wherever your confdir points to.
148		234
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		236
151	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
152	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
153	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.
154		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
155	=back	253	=back
156		254
157	=cut	255	=cut
158		256
159	BEGIN {	257	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	258	my $msg = join "", @_;
162		259
163	$msg .= "\n"	260	$msg .= "\n"
164	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
165		262
166	$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;
167		264
168	utf8::encode $msg;
169	LOG llevError, $msg;	265	LOG llevError, $msg;
170	};	266	};
171	}	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	};
172		281
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		289
180	# 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
181	# within the Safe compartment.	291	# within the Safe compartment.
182	for my $pkg (qw(	292	for my $pkg (qw(
183	cf::global cf::attachable	293	cf::global cf::attachable
184	cf::object cf::object::player	294	cf::object cf::object::player
185	cf::client cf::player	295	cf::client cf::player
186	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
187	cf::map cf::party cf::region	298	cf::party cf::region
188	)) {	299	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	301	}
192		302
193	$Event::DIED = sub {	303	$EV::DIED = sub {
194	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
195	};	305	};
		306
		307	#############################################################################
196		308
197	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
198		310
199	=over 4	311	=over 4
200		312
…		…
219	$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;
220	$d	332	$d
221	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
222	}	334	}
223		335
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
227		337
228	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
229		339
230	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
231		341
232	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
233		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
234	=item cf::lock_wait $string	365	=item cf::lock_wait $string
235		366
236	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
237		368
238	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
239		370
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
243	returned.	374	returned.
244		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
245	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
246	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
247		381
248	=item $locked = cf::lock_active $string	382	=item $locked = cf::lock_active $string
249		383
250	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.
251		385
252	=cut	386	=cut
253		387
254	our %LOCK;	388	our $LOCKS = new Coro::SemaphoreSet;
255		389
256	sub lock_wait($) {	390	sub lock_wait($) {
257	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	392	}
265		393
266	sub lock_acquire($) {	394	sub lock_acquire($) {
267	my ($key) = @_;	395	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	396	}
279		397
280	sub lock_active($) {	398	sub lock_active($) {
281	my ($key) = @_;	399	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	400	}
285		401
286	sub freeze_mainloop {	402	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
288		404
289	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
290	$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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
291	};	472	}
292	$TICK_WATCHER->stop;	473	};
293	$guard	474
		475	sub get_slot($;$$) {
		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	$sig->wait;
294	}	488	}
295		489
296	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
297		491
298	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		497
304	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
305		499
306	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
307		501
308	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
311		506
312	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
315	fast or be very important.	510	fast or be very important.
…		…
318		513
319	sub sync_job(&) {	514	sub sync_job(&) {
320	my ($job) = @_;	515	my ($job) = @_;
321		516
322	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
323	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
325		522
326	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	524
328	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
329		526
330	my $busy = 1;	527	my $busy = 1;
331	my @res;	528	my @res;
332		529
333	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	532	@res = eval { $job->() };
335	warn $@ if $@;	533	warn $@ if $@;
336	undef $busy;	534	undef $busy;
337	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
338		536
339	while ($busy) {	537	while ($busy) {
340	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
341	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
342		548
343	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
344	} else {	550	} else {
345	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
346		552
…		…
366	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
367		573
368	$coro	574	$coro
369	}	575	}
370		576
371	sub write_runtime {	577	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		578
374	# first touch the runtime file to show we are still running:	579	Executes the given code block with the given arguments in a seperate
375	# 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.
376		583
377	warn "touching runtime...\n";#d#	584	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	585
379	utime undef, undef, $fh;	586	sub fork_call(&@) {
		587	my ($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 $!;
380	}	666	};
		667	cf::cleanup "db_open(db): $@" if $@;
381		668
382	my $guard = cf::lock_acquire "write_runtime";	669	$db
		670	}
383		671
384	warn "starting to write runtime...\n";#d#	672	our $DB;
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
386	or return;
387		673
388	my $value = $cf::RUNTIME + 90 + 10;	674	sub db_init {
389	# 10 is the runtime save interval, for a monotonic clock	675	cf::sync_job {
390	# 60 allows for the watchdog to kill the server.	676	$DB ||= db_table "db";
		677	};
		678	}
391		679
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0	680	sub db_get($$) {
393	and return;	681	my $key = "$_[0]/$_[1]";
394		682
395	# always fsync - this file is important	683	cf::sync_job {
396	aio_fsync $fh	684	BDB::db_get $DB, undef, $key, my $data;
397	and return;
398		685
399	# touch it again to show we are up-to-date	686	$! ? ()
400	utime undef, undef, $fh;	687	: $data
401
402	close $fh
403	or return;
404
405	aio_rename "$runtime~", $runtime
406	and return;
407
408	warn "... done writing runtime.\n";#d#
409
410	1	688	}
		689	}
		690
		691	sub db_put($$$) {
		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"
411	}	764	}
412		765
413	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
414		767
415	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.
…		…
427		780
428	#############################################################################	781	#############################################################################
429		782
430	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
431		784
432	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
433	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")
434	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
435		788
436	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>
437	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
438	crossfire+).	791	Deliantra).
439		792
440	=over 4	793	=over 4
441		794
442	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
443		796
…		…
487	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
488		841
489	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
490	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
491		844
492	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
493	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
494		847
495	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
496		849
497	=over 4	850	=over 4
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
607		960
608	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		965
613	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	967	my $pkg = shift @arg;
615		968
616	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
646	}	999	}
647		1000
648	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
649	} else {	1002	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	1004	}
652		1005
653	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
654	}	1007	}
655		1008
…		…
657	if (ref $_[0]) {	1010	if (ref $_[0]) {
658	_object_attach @_;	1011	_object_attach @_;
659	} else {	1012	} else {
660	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
661	}	1014	}
		1015	_recalc_want;
662	};	1016	};
663		1017
664	# all those should be optimised	1018	# all those should be optimised
665	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
670	reattach ($obj);	1024	reattach ($obj);
671	} else {	1025	} else {
672	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
673	}	1027	}
		1028	_recalc_want;
674	};	1029	};
675		1030
676	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
678		1033
…		…
693	";	1048	";
694	die if $@;	1049	die if $@;
695	}	1050	}
696		1051
697	our $override;	1052	our $override;
698	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?
699		1054
700	sub override {	1055	sub override {
701	$override = 1;	1056	$override = 1;
702	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
703	}	1058	}
704		1059
705	sub do_invoke {	1060	sub do_invoke {
706	my $event = shift;	1061	my $event = shift;
707	my $callbacks = shift;	1062	my $callbacks = shift;
708		1063
709	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
710		1065
711	local $override;	1066	local $override;
712		1067
713	for (@$callbacks) {	1068	for (@$callbacks) {
714	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
723	}	1078	}
724		1079
725	0	1080	0
726	}	1081	}
727		1082
728	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
729		1084
730	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
731		1086
732	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
733		1088
734	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
735	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
736	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		1092
738	=back	1093	=back
739		1094
740	=cut	1095	=cut
741		1096
742	#############################################################################	1097	#############################################################################
743	# 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, $ob2
		1140	}
744		1141
745	sub reattach {	1142	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	1144	my ($obj) = @_;
748		1145
		1146	# no longer needed after getting rid of delete_package?
749	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
750		1148
751	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
752		1150
753	@$registry = ();	1151	@$registry = ();
754		1152
…		…
769	cf::attachable->attach (	1167	cf::attachable->attach (
770	prio => -1000000,	1168	prio => -1000000,
771	on_instantiate => sub {	1169	on_instantiate => sub {
772	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
773		1171
774	$data = from_json $data;	1172	$data = decode_json $data;
775		1173
776	for (@$data) {	1174	for (@$data) {
777	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
778		1176
779	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
795	sub object_freezer_save {	1193	sub object_freezer_save {
796	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
797		1195
798	sync_job {	1196	sync_job {
799	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
800	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
801	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
802		1202
803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
804	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
806	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	}
807	close $fh;	1210	aio_close $fh;
808		1211
809	if (@$objs) {	1212	if (@$objs) {
810	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) {
811	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
812	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
813	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
814	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	}
815	close $fh;	1221	aio_close $fh;
816	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
817	}	1223	}
818	} else {	1224	} else {
819	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
820	}	1226	}
821		1227
822	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
823	} else {	1232	} else {
824	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
825	}	1234	}
826	} else {	1235	} else {
827	aio_unlink $filename;	1236	aio_unlink $filename;
828	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
829	}	1238	}
830	}	1239	};
831	}	1240	}
832		1241
833	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
834	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
835		1244
…		…
847	or return;	1256	or return;
848		1257
849	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
850	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
851	or return;	1260	or return;
		1261
852	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
853	}	1264	}
854		1265
		1266	utf8::decode (my $decname = $filename);
855	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
857	return ($data, $av);	1271	($data, $av)
858	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
859		1279
860	#############################################################################	1280	#############################################################################
861	# command handling &c	1281	# command handling &c
862		1282
863	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1297	}
878		1298
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1300
881	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.
882		1306
883	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
884	called.	1308	called.
885		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
886	=cut	1321	=cut
887		1322
888	sub register_extcmd {	1323	sub register_extcmd {
889	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
890		1325
891	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
892	}	1327	}
893		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
894	cf::player->attach (	1337	cf::player->attach (
895	on_command => sub {	1338	on_unknown_command => sub {
896	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
897		1340
898	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
899	or return;	1342	or return;
900		1343
…		…
905	cf::override;	1348	cf::override;
906	},	1349	},
907	on_extcmd => sub {	1350	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
909		1352
910	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1354
912	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
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
915	$pl->ext_reply ($msg->{msgid}, %reply);
916	}
917	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
918	} else {	1370	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1372	}
921		1373
922	cf::override;	1374	cf::override;
923	},	1375	},
924	);	1376	);
925		1377
		1378	# "readahead" all extensions
926	sub load_extension {	1379	sub cache_extensions {
927	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
928		1381
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
930	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
931	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}	1385	}
954	die $@;
955	}	1386	};
956		1387
957	push @EXTS, $pkg;	1388	$grp
958	}	1389	}
959		1390
960	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
961	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1396	next unless -r $path;
963	eval {	1397
964	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 $active;
		1460	}
965	1	1461	}
966	} or warn "$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	}
967	}	1472	};
968	}	1473	}
969		1474
970	#############################################################################	1475	#############################################################################
971		1476
		1477	=back
		1478
972	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
973		1480
974	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
975		1482
976	=cut	1483	=cut
977		1484
978	package cf::player;	1485	package cf::player;
979		1486
980	use Coro::AIO;	1487	use Coro::AIO;
981		1488
982	=head3 cf::player	1489	=head3 cf::player
983		1490
984	=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	}
985		1506
986	=item cf::player::find $login	1507	=item cf::player::find $login
987		1508
988	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
989		1510
…		…
1008		1529
1009	sub exists($) {	1530	sub exists($) {
1010	my ($login) = @_;	1531	my ($login) = @_;
1011		1532
1012	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
1013	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
1014	}	1535	}
1015		1536
1016	sub find($) {	1537	sub find($) {
1017	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1018	my $login = $_[0];	1539	my $login = $_[0];
…		…
1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1028	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
1029		1550
1030	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
1031	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;
1032	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1033	}	1560	}
1034	}	1561	}
1035	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
1036		1576
1037	sub save($) {	1577	sub save($) {
1038	my ($pl) = @_;	1578	my ($pl) = @_;
1039		1579
1040	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1045	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1046		1586
1047	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1048	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1049		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
1050	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1051	Coro::cede;	1596	cf::cede_to_tick;
1052	}	1597	}
1053		1598
1054	sub new($) {	1599	sub new($) {
1055	my ($login) = @_;	1600	my ($login) = @_;
1056		1601
…		…
1062	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1063		1608
1064	$self	1609	$self
1065	}	1610	}
1066		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
1067	=item $pl->quit_character	1622	=item $pl->quit_character
1068		1623
1069	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1070	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1071		1626
…		…
1075	my ($pl) = @_;	1630	my ($pl) = @_;
1076		1631
1077	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1078		1633
1079	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1080	$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
1081		1636
1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1083	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1085	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1086		1642
1087	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1088	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1124	or return [];	1680	or return [];
1125		1681
1126	my @logins;	1682	my @logins;
1127		1683
1128	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1130	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1131	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1132		1694
1133	utf8::decode $login;	1695	utf8::decode $login;
1134	push @logins, $login;	1696	push @logins, $login;
1135	}	1697	}
1136		1698
1137	\@logins	1699	\@logins
1138	}	1700	}
1139		1701
1140	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1141		1705
1142	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1143	player. May block.	1707	player. May block.
1144		1708
1145	=cut	1709	=cut
…		…
1163	}	1727	}
1164		1728
1165	\@paths	1729	\@paths
1166	}	1730	}
1167		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1168	=item $player->ext_reply ($msgid, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1169		1737
1170	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1171		1739
1172	=cut	1740	=cut
1173		1741
1174	sub ext_reply($$%) {	1742	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1176		1744
1177	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1746	}
1181		1747
1182	=item $player->ext_event ($type, %msg)	1748	=item $player->ext_msg ($type, @msg)
1183		1749
1184	Sends an ext event to the client.	1750	Sends an ext event to the client.
1185		1751
1186	=cut	1752	=cut
1187		1753
1188	sub ext_event($$%) {	1754	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1755	my ($self, $type, @msg) = @_;
1190		1756
1191	$self->ns->ext_event ($type, %msg);	1757	$self->ns->ext_msg ($type, @msg);
1192	}	1758	}
1193		1759
1194	=head3 cf::region	1760	=head3 cf::region
1195		1761
1196	=over 4	1762	=over 4
…		…
1199		1765
1200	package cf::region;	1766	package cf::region;
1201		1767
1202	=item cf::region::find_by_path $path	1768	=item cf::region::find_by_path $path
1203		1769
1204	Tries to decuce the probable region for a map knowing only its path.	1770	Tries to decuce the likely region for a map knowing only its path.
1205		1771
1206	=cut	1772	=cut
1207		1773
1208	sub find_by_path($) {	1774	sub find_by_path($) {
1209	my ($path) = @_;	1775	my ($path) = @_;
1210		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
1211	my ($match, $specificity);	1779	my ($match, $specificity);
1212		1780
1213	for my $region (list) {	1781	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1782	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1783	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1784	if $region->specificity > $specificity;
1217	}	1785	}
1218	}	1786	}
1219		1787
…		…
1240	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1241	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1242		1810
1243	sub generate_random_map {	1811	sub generate_random_map {
1244	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1245	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1246	$self->_create_random_map (	1817	$self->_create_random_map (
1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1250	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1251	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1275		1846
1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1277	}	1848	}
1278		1849
1279	# also paths starting with '/'	1850	# also paths starting with '/'
1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1281		1852
1282	sub thawer_merge {	1853	sub thawer_merge {
1283	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1284		1855
1285	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1286	local $self->{path};	1857	local $self->{path};
1287	local $self->{load_path};	1858	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1859
1291	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1292	}	1861	}
1293		1862
1294	sub normalise {	1863	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1342	return $self;	1911	return $self;
1343	}	1912	}
1344	}	1913	}
1345		1914
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1916	()
1348	}	1917	}
1349		1918
1350	sub init {	1919	sub init {
1351	my ($self) = @_;	1920	my ($self) = @_;
…		…
1373		1942
1374	# the temporary/swap location	1943	# the temporary/swap location
1375	sub save_path {	1944	sub save_path {
1376	my ($self) = @_;	1945	my ($self) = @_;
1377		1946
1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1379	"$TMPDIR/$path.map"	1948	"$TMPDIR/$path.map"
1380	}	1949	}
1381		1950
1382	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1383	sub uniq_path {	1952	sub uniq_path {
1384	my ($self) = @_;	1953	my ($self) = @_;
1385		1954
1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1387	"$UNIQUEDIR/$path"	1956	"$UNIQUEDIR/$path"
1388	}	1957	}
1389		1958
1390	# and all this just because we cannot iterate over	1959	sub decay_objects {
1391	# all maps in C++...
1392	sub change_all_map_light {
1393	my ($change) = @_;	1960	my ($self) = @_;
1394		1961
1395	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1396	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1397	}	1965	}
1398		1966
1399	sub unlink_save {	1967	sub unlink_save {
1400	my ($self) = @_;	1968	my ($self) = @_;
1401		1969
…		…
1406		1974
1407	sub load_header_from($) {	1975	sub load_header_from($) {
1408	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1409		1977
1410	utf8::encode $path;	1978	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	1980	or return;
		1981
		1982	$self->_load_header ($f)
		1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1416		1987
1417	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1418		1989
1419	1	1990	1
1420	}	1991	}
…		…
1459	$self->load_header_orig	2030	$self->load_header_orig
1460	or return;	2031	or return;
1461	$self->prepare_orig;	2032	$self->prepare_orig;
1462	}	2033	}
1463		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
1464	$self->default_region (cf::region::find_by_path $self->{path})	2038	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	2039	unless $self->default_region;
1466		2040
1467	1	2041	1
1468	}	2042	}
…		…
1471	sub find {	2045	sub find {
1472	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1473		2047
1474	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1475		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1477		2052
1478	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";
1480	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1481	or return;	2055	or return;
1482		2056
1483	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1484		2058
1485	$map->load_header	2059	$map->load_header
1486	or return;	2060	or return;
1487		2061
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1491	$map->reset;	2067	$map->reset;
1492	undef $guard;
1493	return find $path;	2068	return find $path;
1494	}	2069	}
1495		2070
1496	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1497	}	2072	}
1498	}	2073	}
1499		2074
1500	sub pre_load { }	2075	sub pre_load { }
1501	sub post_load { }	2076	#sub post_load { } # XS
1502		2077
1503	sub load {	2078	sub load {
1504	my ($self) = @_;	2079	my ($self) = @_;
1505		2080
1506	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1507		2082
1508	my $path = $self->{path};	2083	my $path = $self->{path};
1509		2084
1510	{	2085	{
1511	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1512		2087
		2088	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1514		2090
1515	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1516		2092
1517	$self->alloc;	2093	$self->alloc;
1518		2094
1519	$self->pre_load;	2095	$self->pre_load;
1520	Coro::cede;	2096	cf::cede_to_tick;
1521		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
1522	$self->_load_objects ($self->{load_path}, 1)	2100	$self->_load_objects ($f)
1523	or return;	2101	or return;
1524		2102
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1526	if delete $self->{load_original};	2104	if delete $self->{load_original};
1527		2105
1528	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2107	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2110	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1533	}	2114	}
1534	}	2115	}
1535		2116
1536	Coro::cede;	2117	$f->resolve_delayed_derefs;
		2118
		2119	cf::cede_to_tick;
1537	# now do the right thing for maps	2120	# now do the right thing for maps
1538	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2123	unless $self->difficulty;
1541	Coro::cede;	2124	cf::cede_to_tick;
1542		2125
1543	unless ($self->{deny_activate}) {	2126	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2127	$self->decay_objects;
1545	$self->fix_auto_apply;	2128	$self->fix_auto_apply;
1546	$self->update_buttons;	2129	$self->update_buttons;
1547	Coro::cede;	2130	cf::cede_to_tick;
1548	$self->set_darkness_map;
1549	Coro::cede;
1550	$self->activate;	2131	$self->activate;
1551	}	2132	}
1552		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1554	}	2138	}
1555		2139
1556	$self->post_load;	2140	$self->post_load;
1557	}	2141	}
1558		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1559	sub customise_for {	2146	sub customise_for {
1560	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1561		2148
1562	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2150	if $self->per_player;
1564		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1565	$self	2155	$self
1566	}	2156	}
1567		2157
1568	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	2159	sub load_neighbours {
1570	my ($map) = @_;	2160	my ($map) = @_;
1571		2161
1572	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1573		2163
1574	for (0 .. 3) {	2164	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1576	or next;	2166	or next;
1577	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1578	or next;	2168	or next;
1579	$neigh->load;	2169	$neigh->load;
1580		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}	2175	}
1584		2176
1585	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1586	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1587	or next;	2180	or next;
1588	$neigh->load;	2181	$neigh->load;
1589	}	2182	}
1590	}	2183	}
1591		2184
…		…
1596	}	2189	}
1597		2190
1598	sub do_load_sync {	2191	sub do_load_sync {
1599	my ($map) = @_;	2192	my ($map) = @_;
1600		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1601	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1602	}	2198	}
1603		2199
1604	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1606		2202
1607	sub find_async {	2203	sub find_async {
1608	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1609		2205
1610	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1611		2207
1612	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1614	}	2210	}
1615		2211
1616	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1617	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1618	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2219	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2220	$map->load if $v;
		2221	}
1623		2222
1624	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1625	}	2224	}
1626	}	2225	}
1627	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1628	};	2227	};
1629	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1630		2229
1631	()	2230	()
1632	}	2231	}
1633		2232
		2233	# common code, used by both ->save and ->swapout
1634	sub save {	2234	sub _save {
1635	my ($self) = @_;	2235	my ($self) = @_;
1636
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1638		2236
1639	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1640		2238
1641	return unless $self->dirty;	2239	return unless $self->dirty;
1642		2240
…		…
1648	return if $self->{deny_save};	2246	return if $self->{deny_save};
1649		2247
1650	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1651		2249
1652	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1654	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1655		2256
1656	if ($uniq) {	2257	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1659	} else {	2260	} else {
1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1661	}	2262	}
1662	}	2263	}
1663		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1664	sub swap_out {	2273	sub swap_out {
1665	my ($self) = @_;	2274	my ($self) = @_;
1666		2275
1667	# save first because save cedes
1668	$self->save;
1669
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1672	return if $self->players;	2280	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1674	return if $self->{deny_save};
1675		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1676	$self->clear;	2291	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2292	}
1679		2293
1680	sub reset_at {	2294	sub reset_at {
1681	my ($self) = @_;	2295	my ($self) = @_;
1682		2296
1683	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1686		2299
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2302
…		…
1700	my ($self) = @_;	2313	my ($self) = @_;
1701		2314
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2316
1704	return if $self->players;	2317	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2318
1707	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
1708		2320
1709	$self->in_memory (cf::MAP_SWAPPED);	2321	$self->in_memory (cf::MAP_SWAPPED);
1710		2322
1711	# need to save uniques path	2323	# need to save uniques path
1712	unless ($self->{deny_save}) {	2324	unless ($self->{deny_save}) {
…		…
1716	if $uniq;	2328	if $uniq;
1717	}	2329	}
1718		2330
1719	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1720		2332
		2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2335	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2336
1725	$self->unlink_save;	2337	$self->unlink_save;
1726	$self->destroy;	2338	$self->destroy;
1727	}	2339	}
1728		2340
1729	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1730		2342
1731	sub nuke {	2343	sub nuke {
1732	my ($self) = @_;	2344	my ($self) = @_;
1733		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1734	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1735		2350
1736	$self->unlink_save;	2351	$self->unlink_save;
1737		2352
1738	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1739	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2358
1744	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1745		2361
1746	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1747	}	2399	}
1748		2400
1749	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1750		2402
1751	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2404	instantiated unique items. May block.
1753		2405
1754	=cut	2406	=cut
1755		2407
1756	sub unique_maps() {	2408	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2409	[
1758	or return;	2410	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2411	utf8::decode $_;
1764	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1765	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1766		2414	? ()
1767	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2417	]
1769
1770	\@paths
1771	}	2418	}
1772		2419
1773	package cf;	2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
		2447	}
		2448
		2449	\@maps
		2450	}
1774		2451
1775	=back	2452	=back
1776		2453
1777	=head3 cf::object	2454	=head3 cf::object
1778		2455
…		…
1782		2459
1783	=over 4	2460	=over 4
1784		2461
1785	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1786		2463
1787	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1788		2466
1789	=cut	2467	=cut
1790		2468
1791	sub inv_recursive_;	2469	sub inv_recursive_;
1792	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1795		2473
1796	sub inv_recursive {	2474	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1798	}	2476	}
1799		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1800	package cf;	2506	package cf;
1801		2507
1802	=back	2508	=back
1803		2509
1804	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1810	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1811	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1812	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1813		2519
1814	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1815		2535
1816	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1817	# with dialog boxes.	2537	# with dialog boxes.
1818	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1819	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1821		2541
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2543
1824	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1826	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1829	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1830	}	2569	}
1831		2570
1832	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1833		2572
1834	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1847		2586
1848	=item $player_object->enter_link	2587	=item $player_object->enter_link
1849		2588
1850	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1851		2590
1852	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1853	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1854		2595
1855	Will never block.	2596	Will never block.
1856		2597
1857	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1858		2599
…		…
1878	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1879	my ($self) = @_;	2620	my ($self) = @_;
1880		2621
1881	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1882		2623
		2624	++$self->{_link_recursion};
		2625
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2627
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1887		2630
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1889	}	2632	}
1890		2633
1891	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1893		2638
1894	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1895		2640
1896	unless ($map) {	2641	unless ($map) {
1897	# restore original map position	2642	# restore original map position
…		…
1908	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1909	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1910		2655
1911	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1914		2659
1915	$map->load;	2660	$map->load;
1916	$map->load_diag;	2661	$map->load_neighbours;
1917		2662
1918	return unless $self->contr->active;	2663	return unless $self->contr->active;
1919	$self->activate_recursive;
1920		2664
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2666	if ($self->enter_map ($map, $x, $y)) {
1923	}	2667	# entering was successful
1924		2668	delete $self->{_link_recursion};
1925	cf::player->attach (	2669	# only activate afterwards, to support waiting in hooks
1926	on_logout => sub {	2670	$self->activate_recursive;
1927	my ($pl) = @_;
1928
1929	# abort map switching before logout
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},	2671	}
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2672
1939	# try to abort aborted map switching on player login :)	2673	}
1940	# should happen only on crashes
1941	if ($pl->ob->{_link_pos}) {
1942	$pl->ob->enter_link;
1943	(async {
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956		2674
1957	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1958		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1959	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1960		2689
1961	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2701
1964	$self->enter_link;	2702	$self->enter_link;
1965		2703
1966	(async {	2704	(async {
		2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
1967	my $map = eval {	2726	my $map = eval {
1968	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
		2732	} else {
		2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
		2735
1970	$map	2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2742	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1975	})->prio (1);	2750	})->prio (1);
1976	}	2751	}
1977		2752
1978	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1979		2754
…		…
1999	}	2774	}
2000		2775
2001	sub prepare_random_map {	2776	sub prepare_random_map {
2002	my ($exit) = @_;	2777	my ($exit) = @_;
2003		2778
2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
2005
2006	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
2007	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
2008	# that depends on the exit object	2781	# that depends on the exit object
2009		2782
2010	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
2012	if ($exit->map) {	2785	if ($exit->map) {
2013	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
2014	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
2015	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
2016	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
2017	}	2792	}
2018		2793
2019	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
2020		2795
2021	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2022	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
2023	my $meta = "$RANDOMDIR/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
2024		2799
2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2026	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
2027	undef $fh;	2802	undef $fh;
2028	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
2029		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
2030	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
2031	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
2032	}	2811	}
2033	}	2812	}
2034		2813
2035	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
2036	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
2037		2816
2038	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
2039		2818
2040	if ($exit->slaying eq "/!") {
2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
2042	# the problem is that $exit might not survive long enough
2043	# so it needs to be done right now, right here
2044	cf::sync_job { prepare_random_map $exit };
2045	}
2046
2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2048	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;
2050
2051	$self->enter_link;	2819	$self->enter_link;
2052		2820
2053	(async {	2821	(async {
2054	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
2055	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
		2831	prepare_random_map $exit
		2832	if $exit->slaying eq "/!";
		2833	}
		2834
		2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
		2838
2056	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
2057		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
2058	1;	2845	1
2059	}) {	2846	}) {
2060	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
2061	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
2062	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
2063	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
2064		2851
2065	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
…		…
2084		2871
2085	utf8::encode $text;	2872	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2874	}
2088		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
2089	=item $client->ext_event ($type, %msg)	3063	=item $client->ext_msg ($type, @msg)
2090		3064
2091	Sends an exti event to the client.	3065	Sends an ext event to the client.
2092		3066
2093	=cut	3067	=cut
2094		3068
2095	sub cf::client::ext_event($$%) {	3069	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	3070	my ($self, $type, @msg) = @_;
2097		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	3075	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
2100	}	3096	}
2101		3097
2102	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
2103		3099
2104	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		3103
2108	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	3105	become reliable at some point in the future.
2110		3106
2111	=cut	3107	=cut
2112		3108
2113	sub cf::client::query {	3109	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	3118	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		3120
2125	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2127	}	3125	}
2128		3126
2129	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
2130	on_reply => sub {	3133	on_reply => sub {
2131	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2132		3135
2133	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2134	# get handled first	3137	# get handled first
…		…
2146	} else {	3149	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	3151	}
2149	}	3152	}
2150	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
2151	);	3180	);
2152		3181
2153	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2154		3183
2155	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2171		3200
2172	$coro	3201	$coro
2173	}	3202	}
2174		3203
2175	cf::client->attach (	3204	cf::client->attach (
2176	on_destroy => sub {	3205	on_client_destroy => sub {
2177	my ($ns) = @_;	3206	my ($ns) = @_;
2178		3207
2179	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2180	},	3209	},
2181	);	3210	);
…		…
2196	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2198		3227
2199	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2200		3229
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2202		3235
2203	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2204		3237
2205	=pod	3238	=pod
2206		3239
2207	The following functions and methods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2208		3241
2209	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2210	cf::object::player player	3247	cf::object::player
2211	cf::player peaceful	3248	player
2212	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2213		3255
2214	=cut	3256	=cut
2215		3257
2216	for (	3258	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2218	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2220	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2221	) {	3265	) {
2222	no strict 'refs';	3266	no strict 'refs';
2223	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2224	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2242		3286
2243	my $qcode = $code;	3287	my $qcode = $code;
2244	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2245	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2246		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2247	local $_;	3294	local $_;
2248	local @safe::cf::_safe_eval_args = values %vars;
2249		3295
2250	my $eval =	3296	my $eval =
2251	"do {\n"	3297	"do {\n"
2252	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2253	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2254	. $code	3300	. $code
2255	. "\n}"	3301	. "\n}"
2256	;	3302	;
2257		3303
		3304	if ($CFG{safe_eval}) {
2258	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2259	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2260	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2261		3313
2262	if ($@) {	3314	if ($@) {
2263	warn "$@";	3315	warn "$@";
2264	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2265	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2284	=cut	3336	=cut
2285		3337
2286	sub register_script_function {	3338	sub register_script_function {
2287	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2288		3340
2289	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2290	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2291	}	3343	}
2292		3344
2293	=back	3345	=back
2294		3346
2295	=cut	3347	=cut
2296
2297	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470		3348
2471	#############################################################################	3349	#############################################################################
2472	# the server's init and main functions	3350	# the server's init and main functions
2473		3351
2474	sub load_facedata($) {	3352	sub load_facedata($) {
2475	my ($path) = @_;	3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2476		3360
2477	warn "loading facedata from $path\n";	3361	warn "loading facedata from $path\n";
2478		3362
2479	my $facedata;	3363	my $facedata;
2480	0 < aio_load $path, $facedata	3364	0 < aio_load $path, $facedata
…		…
2483	$facedata = Coro::Storable::thaw $facedata;	3367	$facedata = Coro::Storable::thaw $facedata;
2484		3368
2485	$facedata->{version} == 2	3369	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
2488	{	3381	{
2489	my $faces = $facedata->{faceinfo};	3382	my $faces = $facedata->{faceinfo};
2490		3383
2491	while (my ($face, $info) = each %$faces) {	3384	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2496	Coro::cede;	3391
		3392	cf::cede_to_tick;
2497	}	3393	}
2498		3394
2499	while (my ($face, $info) = each %$faces) {	3395	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3396	next unless $info->{smooth};
		3397
2501	my $idx = cf::face::find $face	3398	my $idx = cf::face::find $face
2502	or next;	3399	or next;
		3400
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3404	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3406	}
2508	Coro::cede;	3407
		3408	cf::cede_to_tick;
2509	}	3409	}
2510	}	3410	}
2511		3411
2512	{	3412	{
2513	my $anims = $facedata->{animinfo};	3413	my $anims = $facedata->{animinfo};
2514		3414
2515	while (my ($anim, $info) = each %$anims) {	3415	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3417	cf::cede_to_tick;
2518	}	3418	}
2519		3419
2520	cf::anim::invalidate_all; # d'oh	3420	cf::anim::invalidate_all; # d'oh
2521	}	3421	}
2522		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
2523	1	3442	1
2524	}	3443	}
2525		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
		3473	sub load_resource_file($) {
		3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
2526	sub reload_regions {	3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
2527	load_resource_file "$MAPDIR/regions"	3488	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
2529	}	3495	}
2530		3496
2531	sub reload_facedata {	3497	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3498	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3499	or die "unable to load facedata\n";
…		…
2544	}	3510	}
2545		3511
2546	sub reload_resources {	3512	sub reload_resources {
2547	warn "reloading resource files...\n";	3513	warn "reloading resource files...\n";
2548		3514
2549	reload_regions;
2550	reload_facedata;	3515	reload_facedata;
2551	reload_archetypes;	3516	reload_archetypes;
		3517	reload_regions;
2552	reload_treasures;	3518	reload_treasures;
2553		3519
2554	warn "finished reloading resource files\n";	3520	warn "finished reloading resource files\n";
2555	}	3521	}
2556		3522
2557	sub init {	3523	sub reload_config {
2558	reload_resources;	3524	warn "reloading config file...\n";
2559	}
2560		3525
2561	sub cfg_load {
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2563	or return;	3527	or return;
2564		3528
2565	local $/;	3529	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2567		3531
2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2569		3533
2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2572		3536
2573	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2576	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2577	};	3541	};
2578	warn $@ if $@;	3542	warn $@ if $@;
2579	}	3543	}
		3544
		3545	warn "finished reloading resource files\n";
		3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2580	}	3574	}
2581		3575
2582	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2583	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3589	(async {
2587	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2588	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2589	};	3593	};
2590		3594
2591	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
		3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
2592	db_init;	3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2593	load_extensions;	3618	load_extensions;
2594		3619
2595	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2596	Event::loop;	3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2597	}	3633	}
2598		3634
2599	#############################################################################	3635	#############################################################################
2600	# initialisation and cleanup	3636	# initialisation and cleanup
2601		3637
2602	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2603	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2604	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2605	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	signal => $signal,
2609	prio => 0,
2610	cb => sub {
2611	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2612	},
2613	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2614	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2615	}	3734	}
2616		3735
2617	sub emergency_save() {	3736	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2619		3738
2620	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2621		3740
2622	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2623	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2624	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2625	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2627	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3755	$pl->save;
2631	}	3756	}
2632	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2633		3758
2634	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2635	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2636	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2637	$map->valid or next;	3762	$map->valid or next;
2638	$map->save;	3763	$map->save;
2639	}	3764	}
2640	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
2641		3766
2642	warn "begin emergency database checkpoint\n";	3767	warn "emergency_perl_save: begin database checkpoint\n";
2643	BDB::db_env_txn_checkpoint $DB_ENV;	3768	BDB::db_env_txn_checkpoint $DB_ENV;
2644	warn "end emergency database checkpoint\n";	3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2645	};	3774	};
2646		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2647	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2648	}	3782	}
2649		3783
2650	sub post_cleanup {	3784	sub post_cleanup {
2651	my ($make_core) = @_;	3785	my ($make_core) = @_;
2652		3786
2653	warn Carp::longmess "post_cleanup backtrace"	3787	warn Carp::longmess "post_cleanup backtrace"
2654	if $make_core;	3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
2655	}	3817	}
2656		3818
2657	sub do_reload_perl() {	3819	sub do_reload_perl() {
2658	# can/must only be called in main	3820	# can/must only be called in main
2659	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2660	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2661	return;	3823	return;
2662	}	3824	}
2663		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2664	warn "reloading...";	3831	warn "reloading...";
2665		3832
2666	warn "entering sync_job";	3833	warn "entering sync_job";
2667		3834
2668	cf::sync_job {	3835	cf::sync_job {
2669	cf::write_runtime; # external watchdog should not bark	3836	cf::write_runtime_sync; # external watchdog should not bark
2670	cf::emergency_save;	3837	cf::emergency_save;
2671	cf::write_runtime; # external watchdog should not bark	3838	cf::write_runtime_sync; # external watchdog should not bark
2672		3839
2673	warn "syncing database to disk";	3840	warn "syncing database to disk";
2674	BDB::db_env_txn_checkpoint $DB_ENV;	3841	BDB::db_env_txn_checkpoint $DB_ENV;
2675		3842
2676	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2677		3844
2678	warn "cancelling all WF_AUTOCANCEL watchers";
2679	for (Event::all_watchers) {
2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2681	}
2682
2683	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2684	for (;;) {
2685	BDB::flush;
2686	IO::AIO::flush;
2687	Coro::cede;
2688	last unless IO::AIO::nreqs || BDB::nreqs;	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2689	warn "iterate...";	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2690	}
2691
2692	++$RELOAD;
2693
2694	warn "cancelling all extension coros";
2695	$_->cancel for values %EXT_CORO;
2696	%EXT_CORO = ();
2697
2698	warn "removing commands";
2699	%COMMAND = ();
2700
2701	warn "removing ext commands";
2702	%EXTCMD = ();
2703
2704	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";
2707
2708	if (my $cb = $pkg->can ("unload")) {
2709	eval {
2710	$cb->($pkg);
2711	1
2712	} or warn "$pkg unloaded, but with errors: $@";
2713	}	3848	}
2714		3849
2715	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2716	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2717	}	3852	%EXT_CORO = ();
2718		3853
2719	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2720	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2722		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2723	warn "... unloading $k";	3863	warn "... unloading $pkg";
2724	delete $INC{$k};
2725		3864
2726	$k =~ s/\.pm$//;
2727	$k =~ s/\//::/g;
2728
2729	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2730	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2731	}	3874	}
2732		3875
2733	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2734	}	3891	}
2735		3892
2736	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2737	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2739		3896
2740	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2741	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
2742	delete $INC{"cf/pod.pm"};	3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2743		3900
2744	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2745	# and global variables created in xs	3902	# and global variables created in xs
2746	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2747		3904
2748	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2749		3906
2750	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2751	require cf;	3908	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2753		3910
2754	warn "loading config and database again";	3911	warn "loading config and database again";
2755	cf::cfg_load;	3912	cf::reload_config;
2756		3913
2757	warn "loading extensions";	3914	warn "loading extensions";
2758	cf::load_extensions;	3915	cf::load_extensions;
2759		3916
		3917	if ($REATTACH_ON_RELOAD) {
2760	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2761	_global_reattach; # objects, sockets	3919	_global_reattach; # objects, sockets
2762	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2763	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
2764	warn "reattaching attachments to players";	3922	warn "reattaching attachments to players";
2765	reattach $_ for values %PLAYER;	3923	reattach $_ for values %PLAYER;
		3924	}
2766		3925
		3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
		3928
2767	warn "leaving sync_job";	3929	warn "leaving sync_job";
2768		3930
2769	1	3931	1
2770	} or do {	3932	} or do {
2771	warn $@;	3933	warn $@;
2772	warn "error while reloading, exiting.";	3934	cf::cleanup "error while reloading, exiting.";
2773	exit 1;
2774	};	3935	};
2775		3936
2776	warn "reloaded";	3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
2777	};	3943	};
2778		3944
2779	our $RELOAD_WATCHER; # used only during reload	3945	our $RELOAD_WATCHER; # used only during reload
2780		3946
2781	sub reload_perl() {	3947	sub reload_perl() {
2782	# doing reload synchronously and two reloads happen back-to-back,	3948	# doing reload synchronously and two reloads happen back-to-back,
2783	# coro crashes during coro_state_free->destroy here.	3949	# coro crashes during coro_state_free->destroy here.
2784		3950
2785	$RELOAD_WATCHER ||= Event->timer (	3951	$RELOAD_WATCHER ||= cf::async {
2786	reentrant => 0,	3952	Coro::AIO::aio_wait cache_extensions;
2787	after => 0,	3953
2788	data => WF_AUTOCANCEL,	3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2789	cb => sub {
2790	do_reload_perl;	3955	do_reload_perl;
2791	undef $RELOAD_WATCHER;	3956	undef $RELOAD_WATCHER;
2792	},	3957	};
2793	);	3958	};
2794	}	3959	}
2795		3960
2796	register_command "reload" => sub {	3961	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2798		3963
2799	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
		3966	async {
		3967	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	3968	reload_perl;
		3969	};
2802	}	3970	}
2803	};	3971	};
2804		3972
2805	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2806		3974
…		…
2808		3976
2809	our @WAIT_FOR_TICK;	3977	our @WAIT_FOR_TICK;
2810	our @WAIT_FOR_TICK_BEGIN;	3978	our @WAIT_FOR_TICK_BEGIN;
2811		3979
2812	sub wait_for_tick {	3980	sub wait_for_tick {
2813	return unless $TICK_WATCHER->is_active;
2814	return if $Coro::current == $Coro::main;	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2815		3982
2816	my $signal = new Coro::Signal;	3983	my $signal = new Coro::Signal;
2817	push @WAIT_FOR_TICK, $signal;	3984	push @WAIT_FOR_TICK, $signal;
2818	$signal->wait;	3985	$signal->wait;
2819	}	3986	}
2820		3987
2821	sub wait_for_tick_begin {	3988	sub wait_for_tick_begin {
2822	return unless $TICK_WATCHER->is_active;
2823	return if $Coro::current == $Coro::main;	3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2824		3990
2825	my $signal = new Coro::Signal;	3991	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3992	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3993	$signal->wait;
2828	}	3994	}
2829		3995
2830	$TICK_WATCHER = Event->timer (	3996	sub tick {
2831	reentrant => 0,
2832	parked => 1,
2833	prio => 0,
2834	at => $NEXT_TICK || $TICK,
2835	data => WF_AUTOCANCEL,
2836	cb => sub {
2837	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2840	return;	4000	return;
2841	}	4001	}
2842		4002
2843	$NOW = Event::time;
2844
2845	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2846		4004
2847	$RUNTIME += $TICK;	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2848	$NEXT_TICK += $TICK;
2849		4006
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2852	Coro::async_pool {	4009	Coro::async_pool {
		4010	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	4011	write_runtime_sync
2854	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2855	};
2856	}	4013	};
		4014	}
2857		4015
2858	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#
2860
2861	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2863
2864	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;
2866
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2868	$sig->send;	4017	$sig->send;
2869	}	4018	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {	4019	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;	4020	$sig->send;
2872	}
2873
2874	_post_tick;
2875	},	4021	}
2876	);	4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
2877		4034
2878	{	4035	{
2879	BDB::max_poll_time $TICK * 0.1;	4036	# configure BDB
2880	$BDB_POLL_WATCHER = Event->io (	4037
2881	reentrant => 0,
2882	fd => BDB::poll_fileno,
2883	poll => 'r',
2884	prio => 0,
2885	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,
2887	);
2888	BDB::min_parallel 8;	4038	BDB::min_parallel 16;
2889		4039	BDB::max_poll_reqs $TICK * 0.1;
2890	BDB::set_sync_prepare {	4040	$AnyEvent::BDB::WATCHER->priority (1);
2891	my $status;
2892	my $current = $Coro::current;
2893	(
2894	sub {
2895	$status = $!;
2896	$current->ready; undef $current;
2897	},
2898	sub {
2899	Coro::schedule while defined $current;
2900	$! = $status;
2901	},
2902	)
2903	};
2904		4041
2905	unless ($DB_ENV) {	4042	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		4049
2908	cf::sync_job {	4050	cf::sync_job {
2909	eval {	4051	eval {
2910	BDB::db_env_open	4052	BDB::db_env_open
2911	$DB_ENV,	4053	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	4057	0666;
2916		4058
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2918
2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2920	$DB_ENV->set_lk_detect;
2921	};	4060	};
2922		4061
2923	cf::cleanup "db_env_open(db): $@" if $@;	4062	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	4063	};
2925	}	4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
2926	}	4075	}
2927		4076
2928	{	4077	{
		4078	# configure IO::AIO
		4079
2929	IO::AIO::min_parallel 8;	4080	IO::AIO::min_parallel 8;
2930
2931	undef $Coro::AIO::WATCHER;
2932	IO::AIO::max_poll_time $TICK * 0.1;	4081	IO::AIO::max_poll_time $TICK * 0.1;
2933	$AIO_POLL_WATCHER = Event->io (	4082	undef $AnyEvent::AIO::WATCHER;
2934	reentrant => 0,
2935	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,
2937	poll => 'r',
2938	prio => 6,
2939	cb => \&IO::AIO::poll_cb,
2940	);
2941	}	4083	}
2942		4084
2943	my $_log_backtrace;	4085	my $_log_backtrace;
2944		4086
2945	sub _log_backtrace {	4087	sub _log_backtrace {
…		…
2948	$msg =~ s/\n//;	4090	$msg =~ s/\n//;
2949		4091
2950	# limit the # of concurrent backtraces	4092	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	4093	if ($_log_backtrace < 2) {
2952	++$_log_backtrace;	4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
2953	async {	4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
2954	my @bt = fork_call {	4099	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	4100	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	4103	or die "addr2line: $!";
…		…
2966	}	4111	}
2967		4112
2968	@funcs	4113	@funcs
2969	};	4114	};
2970		4115
2971	LOG llevInfo, "[ABT] $msg\n";	4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2972	LOG llevInfo, "[ABT] $_\n" for @bt;	4118	LOG llevInfo, "[ABT] $_\n" for @bt;
2973	--$_log_backtrace;	4119	--$_log_backtrace;
2974	};	4120	};
2975	} else {	4121	} else {
2976	LOG llevInfo, "[ABT] $msg\n";	4122	LOG llevInfo, "[ABT] $msg\n";
2977	LOG llevInfo, "[ABT] [suppressed]\n";	4123	LOG llevInfo, "[ABT] [suppressed]\n";
2978	}	4124	}
2979	}	4125	}
2980		4126
2981	# load additional modules	4127	# load additional modules
2982	use cf::pod;	4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2983		4130
2984	END { cf::emergency_save }	4131	END { cf::emergency_save }
2985		4132
2986	1	4133	1
2987		4134

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