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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 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 Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		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";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		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;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
53		130
54	our %CFG;	131	our %CFG;
55		132
56	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
58		136
59	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		140
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REALLY_UNLOOP; # never set to true, please :)
		153
70	binmode STDOUT;	154	binmode STDOUT;
71	binmode STDERR;	155	binmode STDERR;
72		156
73	# read virtual server time, if available	157	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
78	}	162	}
79		163
80	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	165
82	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		168
86	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
87		170
88	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::"} };
89		187
90	#############################################################################	188	#############################################################################
91		189
92	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
93		191
…		…
100	=item $cf::RUNTIME	198	=item $cf::RUNTIME
101		199
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	201	every server tick.
104		202
105	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		206
107	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
109		211
110	=item $cf::NOW	212	=item $cf::NOW
111		213
112	The time of the last (current) server tick.	214	The time of the last (current) server tick.
113		215
114	=item $cf::TICK	216	=item $cf::TICK
115		217
116	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
117		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
118	=item %cf::CFG	230	=item %cf::CFG
119		231
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	233	from wherever your confdir points to.
122		234
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		236
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.	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.
129		252
130	=back	253	=back
131		254
132	=cut	255	=cut
133		256
134	BEGIN {	257	$Coro::State::WARNHOOK = sub {
135	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	258	my $msg = join "", @_;
137	utf8::encode $msg;
138		259
139	$msg .= "\n"	260	$msg .= "\n"
140	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
141		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
142	LOG llevError, $msg;	265	LOG llevError, $msg;
143	};	266	};
144	}	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	};
145		281
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@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';
151	@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)
152		289
153	# 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
154	# within the Safe compartment.	291	# within the Safe compartment.
155	for my $pkg (qw(	292	for my $pkg (qw(
156	cf::global cf::attachable	293	cf::global cf::attachable
157	cf::object cf::object::player	294	cf::object cf::object::player
158	cf::client cf::player	295	cf::client cf::player
159	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
160	cf::map cf::party cf::region	298	cf::party cf::region
161	)) {	299	)) {
162	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	301	}
165		302
166	$Event::DIED = sub {	303	$EV::DIED = sub {
167	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
168	};	305	};
		306
		307	#############################################################################
169		308
170	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
171		310
172	=over 4	311	=over 4
173		312
…		…
192	$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;
193	$d	332	$d
194	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
195	}	334	}
196		335
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
200		337
201	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
202		339
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
211		341
212	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
213		343
214	=cut	344	=cut
215		345
216	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
218	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[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;
219	}	363	}
220		364
221	=item cf::lock_wait $string	365	=item cf::lock_wait $string
222		366
223	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
224		368
225	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
226		370
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
230	returned.	374	returned.
231		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
232	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
233	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
234		381
235	=cut	382	=item $locked = cf::lock_active $string
236		383
237	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
238		389
239	sub lock_wait($) {	390	sub lock_wait($) {
240	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	392	}
248		393
249	sub lock_acquire($) {	394	sub lock_acquire($) {
250	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
251		397
252	# wait, to be sure we are not locked	398	sub lock_active($) {
253	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	400	}
262		401
263	sub freeze_mainloop {	402	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
265		404
266	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	406	}
268	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
269	};	472	}
270	$WRITE_RUNTIME_WATCHER->stop;	473	};
271	$TICK_WATCHER->stop;	474
272	$guard	475	sub get_slot($;$$) {
		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	$sig->wait;
273	}	488	}
274		489
275	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
276		491
277	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		497
283	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
284		499
285	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
286		501
287	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
290		506
291	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
294	fast or be very important.	510	fast or be very important.
…		…
297		513
298	sub sync_job(&) {	514	sub sync_job(&) {
299	my ($job) = @_;	515	my ($job) = @_;
300		516
301	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
302	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
304		522
305	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	524
307	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
308		526
309	my $busy = 1;	527	my $busy = 1;
310	my @res;	528	my @res;
311		529
312	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	532	@res = eval { $job->() };
314	warn $@ if $@;	533	warn $@ if $@;
315	undef $busy;	534	undef $busy;
316	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
317		536
318	while ($busy) {	537	while ($busy) {
319	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
320	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
321		548
322	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
323	} else {	550	} else {
324	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
325		552
…		…
345	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
346		573
347	$coro	574	$coro
348	}	575	}
349		576
350	sub write_runtime {	577	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		578
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
354	or return;	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.
355		583
356	my $value = $cf::RUNTIME + 90 + 10;	584	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		585
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	sub fork_call(&@) {
361	and return;	587	my ($cb, @args) = @_;
362		588
363	aio_fsync $fh	589	# we seemingly have to make a local copy of the whole thing,
364	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
365		592
366	close $fh	593	my @res = Coro::Util::fork_eval {
367	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
368		597
369	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
370	and return;	599	}
371		600
		601	sub objinfo {
372	1	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 $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		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"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	775	}
374		776
375	=back	777	=back
376		778
377	=cut	779	=cut
378		780
379	#############################################################################	781	#############################################################################
380		782
381	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
382		784
383	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
384	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")
385	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
386		788
387	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>
388	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
389	crossfire+).	791	Deliantra).
390		792
391	=over 4	793	=over 4
392		794
393	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
394		796
…		…
438	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
439		841
440	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
441	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
442		844
443	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
444	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.
445		847
446	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
447		849
448	=over 4	850	=over 4
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
558		960
559	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		965
564	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	967	my $pkg = shift @arg;
566		968
567	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
597	}	999	}
598		1000
599	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
600	} else {	1002	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	1004	}
603		1005
604	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
605	}	1007	}
606		1008
…		…
608	if (ref $_[0]) {	1010	if (ref $_[0]) {
609	_object_attach @_;	1011	_object_attach @_;
610	} else {	1012	} else {
611	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
612	}	1014	}
		1015	_recalc_want;
613	};	1016	};
614		1017
615	# all those should be optimised	1018	# all those should be optimised
616	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
621	reattach ($obj);	1024	reattach ($obj);
622	} else {	1025	} else {
623	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
624	}	1027	}
		1028	_recalc_want;
625	};	1029	};
626		1030
627	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
629		1033
…		…
644	";	1048	";
645	die if $@;	1049	die if $@;
646	}	1050	}
647		1051
648	our $override;	1052	our $override;
649	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?
650		1054
651	sub override {	1055	sub override {
652	$override = 1;	1056	$override = 1;
653	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
654	}	1058	}
655		1059
656	sub do_invoke {	1060	sub do_invoke {
657	my $event = shift;	1061	my $event = shift;
658	my $callbacks = shift;	1062	my $callbacks = shift;
659		1063
660	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
661		1065
662	local $override;	1066	local $override;
663		1067
664	for (@$callbacks) {	1068	for (@$callbacks) {
665	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
674	}	1078	}
675		1079
676	0	1080	0
677	}	1081	}
678		1082
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		1084
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		1086
683	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
684		1088
685	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
686	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
687	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		1092
689	=back	1093	=back
690		1094
691	=cut	1095	=cut
692		1096
693	#############################################################################	1097	#############################################################################
694	# 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, $ob2
		1140	}
695		1141
696	sub reattach {	1142	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1144	my ($obj) = @_;
699		1145
		1146	# no longer needed after getting rid of delete_package?
700	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
701		1148
702	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
703		1150
704	@$registry = ();	1151	@$registry = ();
705		1152
…		…
720	cf::attachable->attach (	1167	cf::attachable->attach (
721	prio => -1000000,	1168	prio => -1000000,
722	on_instantiate => sub {	1169	on_instantiate => sub {
723	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
724		1171
725	$data = from_json $data;	1172	$data = decode_json $data;
726		1173
727	for (@$data) {	1174	for (@$data) {
728	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
729		1176
730	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1193	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
748		1195
749	sync_job {	1196	sync_job {
750	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
753		1202
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
757	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
758	close $fh;	1210	aio_close $fh;
759		1211
760	if (@$objs) {	1212	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($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;
765	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
766	close $fh;	1221	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
768	}	1223	}
769	} else {	1224	} else {
770	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
771	}	1226	}
772		1227
773	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1232	} else {
775	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
776	}	1234	}
777	} else {	1235	} else {
778	aio_unlink $filename;	1236	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
780	}	1238	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1239	};
788	}	1240	}
789		1241
790	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
792		1244
…		…
797		1249
798	sub object_thawer_load {	1250	sub object_thawer_load {
799	my ($filename) = @_;	1251	my ($filename) = @_;
800		1252
801	my ($data, $av);	1253	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1254
806	(aio_load $filename, $data) >= 0	1255	(aio_load $filename, $data) >= 0
807	or return;	1256	or return;
808		1257
809	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
811	or return;	1260	or return;
		1261
812	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
813	}	1264	}
814		1265
		1266	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
817	return ($data, $av);	1271	($data, $av)
818	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
819		1279
820	#############################################################################	1280	#############################################################################
821	# command handling &c	1281	# command handling &c
822		1282
823	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1297	}
838		1298
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1300
841	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.
842		1306
843	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
844	called.	1308	called.
845		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
846	=cut	1321	=cut
847		1322
848	sub register_extcmd {	1323	sub register_extcmd {
849	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
850		1325
851	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
852	}	1327	}
853		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
854	cf::player->attach (	1337	cf::player->attach (
855	on_command => sub {	1338	on_unknown_command => sub {
856	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
857		1340
858	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
859	or return;	1342	or return;
860		1343
…		…
865	cf::override;	1348	cf::override;
866	},	1349	},
867	on_extcmd => sub {	1350	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
869		1352
870	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1354
872	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
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
878	} else {	1370	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1372	}
881		1373
882	cf::override;	1374	cf::override;
883	},	1375	},
884	);	1376	);
885		1377
		1378	# "readahead" all extensions
886	sub load_extension {	1379	sub cache_extensions {
887	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
888		1381
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1385	}
914	die $@;
915	}	1386	};
916		1387
917	push @EXTS, $pkg;	1388	$grp
918	}	1389	}
919		1390
920	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
921	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1396	next unless -r $path;
923	eval {	1397
924	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 $active;
		1460	}
925	1	1461	}
926	} or warn "$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	}
927	}	1472	};
928	}	1473	}
929		1474
930	#############################################################################	1475	#############################################################################
931		1476
		1477	=back
		1478
932	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
933		1480
934	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
935		1482
936	=cut	1483	=cut
937		1484
938	package cf::player;	1485	package cf::player;
939		1486
…		…
941		1488
942	=head3 cf::player	1489	=head3 cf::player
943		1490
944	=over 4	1491	=over 4
945		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	}
		1506
946	=item cf::player::find $login	1507	=item cf::player::find $login
947		1508
948	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
949		1510
950	=cut	1511	=cut
951		1512
952	sub playerdir($) {	1513	sub playerdir($) {
953	cf::localdir	1514	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1516	}
959		1517
960	sub path($) {	1518	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1520
963	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
964	}	1522	}
965		1523
966	sub find_active($) {	1524	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
971		1529
972	sub exists($) {	1530	sub exists($) {
973	my ($login) = @_;	1531	my ($login) = @_;
974		1532
975	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
977	}	1535	}
978		1536
979	sub find($) {	1537	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1539	my $login = $_[0];
982		1540
983	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
984		1542
985	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
987	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;
988	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
989	}	1560	}
990	}	1561	}
991	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
992		1576
993	sub save($) {	1577	sub save($) {
994	my ($pl) = @_;	1578	my ($pl) = @_;
995		1579
996	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1001	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1002		1586
1003	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1005		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
1006	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1007	Coro::cede;	1596	cf::cede_to_tick;
1008	}	1597	}
1009		1598
1010	sub new($) {	1599	sub new($) {
1011	my ($login) = @_;	1600	my ($login) = @_;
1012		1601
…		…
1018	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1019		1608
1020	$self	1609	$self
1021	}	1610	}
1022		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
1023	=item $pl->quit_character	1622	=item $pl->quit_character
1024		1623
1025	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1027		1626
1028	=cut	1627	=cut
1029		1628
1030	sub quit_character {	1629	sub quit_character {
1031	my ($pl) = @_;	1630	my ($pl) = @_;
1032		1631
		1632	my $name = $pl->ob->name;
		1633
1033	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1034	$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
1035		1636
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1039	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1040		1642
1041	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1046	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1047	}	1669	}
1048		1670
1049	=item cf::player::list_logins	1671	=item cf::player::list_logins
1050		1672
1051	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1053		1675
1054	=cut	1676	=cut
1055		1677
1056	sub list_logins {	1678	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1680	or return [];
1059		1681
1060	my @logins;	1682	my @logins;
1061		1683
1062	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") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1066		1694
1067	utf8::decode $login;	1695	utf8::decode $login;
1068	push @logins, $login;	1696	push @logins, $login;
1069	}	1697	}
1070		1698
1071	\@logins	1699	\@logins
1072	}	1700	}
1073		1701
1074	=item $player->maps	1702	=item $player->maps
1075		1703
		1704	=item cf::player::maps $login
		1705
1076	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1077	player. May block.	1707	player. May block.
1078		1708
1079	=cut	1709	=cut
1080		1710
1081	sub maps($) {	1711	sub maps($) {
1082	my ($pl) = @_;	1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
1083		1715
1084	my $files = aio_readdir playerdir $pl	1716	my $files = aio_readdir playerdir $pl
1085	or return;	1717	or return;
1086		1718
1087	my @paths;	1719	my @paths;
…		…
1089	for (@$files) {	1721	for (@$files) {
1090	utf8::decode $_;	1722	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1723	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1724	next unless /^$PATH_SEP/o;
1093		1725
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1726	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1727	}
1096		1728
1097	\@paths	1729	\@paths
1098	}	1730	}
1099		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1101		1737
1102	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1103		1739
1104	=cut	1740	=cut
1105		1741
1106	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1107	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1108		1744
1109	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1110
1111	$self->send ("ext " . cf::to_json \%msg);
1112	}	1746	}
1113		1747
1114	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1115		1790
1116	=back	1791	=back
1117
1118		1792
1119	=head3 cf::map	1793	=head3 cf::map
1120		1794
1121	=over 4	1795	=over 4
1122		1796
…		…
1134	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1135	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1136		1810
1137	sub generate_random_map {	1811	sub generate_random_map {
1138	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
1139	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1140	$self->_create_random_map (	1817	$self->_create_random_map (
1141	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1142	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1143	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1144	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1145	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1146	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1147	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1169		1846
1170	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1171	}	1848	}
1172		1849
1173	# also paths starting with '/'	1850	# also paths starting with '/'
1174	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1175		1852
1176	sub thawer_merge {	1853	sub thawer_merge {
1177	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1178		1855
1179	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1180	local $self->{path};	1857	local $self->{path};
1181	local $self->{load_path};	1858	local $self->{load_path};
1182	local $self->{deny_save};
1183	local $self->{deny_reset};
1184		1859
1185	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1186	}	1861	}
1187		1862
1188	sub normalise {	1863	sub normalise {
…		…
1235	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1236	return $self;	1911	return $self;
1237	}	1912	}
1238	}	1913	}
1239		1914
1240	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1241	()	1916	()
1242	}	1917	}
1243		1918
1244	sub init {	1919	sub init {
1245	my ($self) = @_;	1920	my ($self) = @_;
…		…
1260		1935
1261	# the original (read-only) location	1936	# the original (read-only) location
1262	sub load_path {	1937	sub load_path {
1263	my ($self) = @_;	1938	my ($self) = @_;
1264		1939
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1266	}	1941	}
1267		1942
1268	# the temporary/swap location	1943	# the temporary/swap location
1269	sub save_path {	1944	sub save_path {
1270	my ($self) = @_;	1945	my ($self) = @_;
1271		1946
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1274	}	1949	}
1275		1950
1276	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1277	sub uniq_path {	1952	sub uniq_path {
1278	my ($self) = @_;	1953	my ($self) = @_;
1279		1954
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1282	}	1957	}
1283		1958
1284	# and all this just because we cannot iterate over	1959	sub decay_objects {
1285	# all maps in C++...
1286	sub change_all_map_light {
1287	my ($change) = @_;	1960	my ($self) = @_;
1288		1961
1289	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1290	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1291	}	1965	}
1292		1966
1293	sub unlink_save {	1967	sub unlink_save {
1294	my ($self) = @_;	1968	my ($self) = @_;
1295		1969
1296	utf8::encode (my $save = $self->save_path);	1970	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1973	}
1305		1974
1306	sub load_header_from($) {	1975	sub load_header_from($) {
1307	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1308		1977
1309	utf8::encode $path;	1978	utf8::encode $path;
1310	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1311	# or return;
1312
1313	$self->_load_header ($path)
1314	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;
1315		1987
1316	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1317		1989
1318	1	1990	1
1319	}	1991	}
…		…
1358	$self->load_header_orig	2030	$self->load_header_orig
1359	or return;	2031	or return;
1360	$self->prepare_orig;	2032	$self->prepare_orig;
1361	}	2033	}
1362		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
1363	1	2041	1
1364	}	2042	}
1365		2043
1366	sub find;	2044	sub find;
1367	sub find {	2045	sub find {
1368	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1369		2047
1370	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1371		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1372	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1373		2052
1374	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1375	my $guard = cf::lock_acquire "map_find:$path";
1376	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1377	or return;	2055	or return;
1378		2056
1379	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1380		2058
1381	$map->load_header	2059	$map->load_header
1382	or return;	2060	or return;
1383		2061
1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1385	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1386	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1387	$map->reset;	2067	$map->reset;
1388	undef $guard;
1389	return find $path;	2068	return find $path;
1390	}	2069	}
1391		2070
1392	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1393	}	2072	}
1394	}	2073	}
1395		2074
1396	sub pre_load { }	2075	sub pre_load { }
1397	sub post_load { }	2076	#sub post_load { } # XS
1398		2077
1399	sub load {	2078	sub load {
1400	my ($self) = @_;	2079	my ($self) = @_;
1401		2080
1402	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1403		2082
1404	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1405	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1406		2087
		2088	return unless $self->valid;
1407	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1408		2090
1409	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1410		2092
1411	$self->alloc;	2093	$self->alloc;
1412		2094
1413	$self->pre_load;	2095	$self->pre_load;
		2096	cf::cede_to_tick;
1414		2097
1415	$self->_load_objects ($self->{load_path}, 1)	2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1416	or return;	2101	or return;
1417		2102
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1419	if delete $self->{load_original};	2104	if delete $self->{load_original};
1420		2105
1421	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;	2107	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1424	$self->clear_unique_items;	2110	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1426	}	2114	}
1427	}	2115	}
1428		2116
1429	Coro::cede;	2117	$f->resolve_delayed_derefs;
1430		2118
		2119	cf::cede_to_tick;
1431	# now do the right thing for maps	2120	# now do the right thing for maps
1432	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;
1439	$self->set_darkness_map;
1440	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	2123	unless $self->difficulty;
1442	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1443	$self->activate;	2131	$self->activate;
		2132	}
		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
		2137	$self->in_memory (cf::MAP_ACTIVE);
1444	}	2138	}
1445		2139
1446	$self->post_load;	2140	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	2141	}
1450		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
1451	sub customise_for {	2146	sub customise_for {
1452	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1453		2148
1454	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1455	if $self->per_player;	2150	if $self->per_player;
1456		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1457	$self	2155	$self
1458	}	2156	}
1459		2157
1460	# 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
1461	sub load_diag {	2159	sub load_neighbours {
1462	my ($map) = @_;	2160	my ($map) = @_;
1463		2161
1464	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1465		2163
1466	for (0 .. 3) {	2164	for (0 .. 3) {
1467	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1468	or next;	2166	or next;
1469	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1470	or next;	2168	or next;
1471	$neigh->load;	2169	$neigh->load;
1472		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1473	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1474	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1475	}	2175	}
1476		2176
1477	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1478	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1479	or next;	2180	or next;
1480	$neigh->load;	2181	$neigh->load;
1481	}	2182	}
1482	}	2183	}
1483		2184
…		…
1488	}	2189	}
1489		2190
1490	sub do_load_sync {	2191	sub do_load_sync {
1491	my ($map) = @_;	2192	my ($map) = @_;
1492		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1493	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1494	}	2198	}
1495		2199
1496	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1497	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1498		2202
1499	sub find_async {	2203	sub find_async {
1500	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1501		2205
1502	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1503		2207
1504	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1505	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1506	}	2210	}
1507		2211
1508	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1509	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1510	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1511	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1512	my $map = find $path	2219	if (my $map = find $k) {
1513	or next;
1514	$map->load;	2220	$map->load if $v;
		2221	}
1515		2222
1516	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1517	}	2224	}
1518	}	2225	}
1519	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1520	};	2227	};
1521	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1522		2229
1523	()	2230	()
1524	}	2231	}
1525		2232
		2233	# common code, used by both ->save and ->swapout
1526	sub save {	2234	sub _save {
1527	my ($self) = @_;	2235	my ($self) = @_;
1528
1529	my $lock = cf::lock_acquire "map_data:" . $self->path;
1530		2236
1531	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1532		2238
1533	return unless $self->dirty;	2239	return unless $self->dirty;
1534		2240
…		…
1540	return if $self->{deny_save};	2246	return if $self->{deny_save};
1541		2247
1542	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1543		2249
1544	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1545	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1546	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1547		2256
1548	if ($uniq) {	2257	if ($uniq) {
1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1550	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1551	} else {	2260	} else {
1552	$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);
1553	}	2262	}
1554	}	2263	}
1555		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1556	sub swap_out {	2273	sub swap_out {
1557	my ($self) = @_;	2274	my ($self) = @_;
1558		2275
1559	# save first because save cedes
1560	$self->save;
1561
1562	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1563		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1564	return if $self->players;	2280	return if $self->players;
1565	return if $self->in_memory != cf::MAP_IN_MEMORY;
1566	return if $self->{deny_save};
1567		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
1568	$self->clear;	2291	$self->clear;
1569	$self->in_memory (cf::MAP_SWAPPED);
1570	}	2292	}
1571		2293
1572	sub reset_at {	2294	sub reset_at {
1573	my ($self) = @_;	2295	my ($self) = @_;
1574		2296
1575	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1577	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1578		2299
1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1580	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;
1581		2302
…		…
1592	my ($self) = @_;	2313	my ($self) = @_;
1593		2314
1594	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1595		2316
1596	return if $self->players;	2317	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#
1598		2318
1599	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1600		2330
1601	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1602		2332
1603	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1604	$self->clear;	2335	$self->clear;
1605
1606	$_->clear_links_to ($self) for values %cf::MAP;
1607		2336
1608	$self->unlink_save;	2337	$self->unlink_save;
1609	$self->destroy;	2338	$self->destroy;
1610	}	2339	}
1611		2340
1612	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1613		2342
1614	sub nuke {	2343	sub nuke {
1615	my ($self) = @_;	2344	my ($self) = @_;
1616		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1617	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1618		2350
1619	$self->unlink_save;	2351	$self->unlink_save;
1620		2352
1621	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1622	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1623	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1624	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1625	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1626		2358
1627	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1628		2361
1629	$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	]
1630	}	2399	}
1631		2400
1632	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1633		2402
1634	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1635	instantiated unique items. May block.	2404	instantiated unique items. May block.
1636		2405
1637	=cut	2406	=cut
1638		2407
1639	sub unique_maps() {	2408	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1641	or return;	2410	map {
1642
1643	my @paths;
1644
1645	for (@$files) {
1646	utf8::decode $_;	2411	utf8::decode $_;
1647	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1648	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1649		2414	? ()
1650	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1651	}	2417	]
1652
1653	\@paths
1654	}	2418	}
1655		2419
1656	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	}
1657		2451
1658	=back	2452	=back
1659		2453
1660	=head3 cf::object	2454	=head3 cf::object
1661		2455
…		…
1665		2459
1666	=over 4	2460	=over 4
1667		2461
1668	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1669		2463
1670	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.
1671		2466
1672	=cut	2467	=cut
1673		2468
1674	sub inv_recursive_;	2469	sub inv_recursive_;
1675	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1678		2473
1679	sub inv_recursive {	2474	sub inv_recursive {
1680	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1681	}	2476	}
1682		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
1683	package cf;	2506	package cf;
1684		2507
1685	=back	2508	=back
1686		2509
1687	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1693	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>
1694	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
1695	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1696		2519
1697	=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	};
1698		2535
1699	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1700	# with dialog boxes.	2537	# with dialog boxes.
1701	#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
1702	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1704		2541
1705	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1706		2543
1707	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1708	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1709	} 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 {
1710	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1711	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1712	}	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 (@_);
1713	}	2569	}
1714		2570
1715	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1716		2572
1717	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1730		2586
1731	=item $player_object->enter_link	2587	=item $player_object->enter_link
1732		2588
1733	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}>).
1734		2590
1735	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.
1736	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.
1737		2595
1738	Will never block.	2596	Will never block.
1739		2597
1740	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1741		2599
…		…
1761	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1762	my ($self) = @_;	2620	my ($self) = @_;
1763		2621
1764	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1765		2623
		2624	++$self->{_link_recursion};
		2625
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		2627
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1770		2630
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1772	}	2632	}
1773		2633
1774	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1776		2638
1777	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1778		2640
1779	unless ($map) {	2641	unless ($map) {
1780	# restore original map position	2642	# restore original map position
…		…
1791	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1792	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1793		2655
1794	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1795	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1796	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1797		2659
1798	$map->load;	2660	$map->load;
1799	$map->load_diag;	2661	$map->load_neighbours;
1800		2662
1801	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1802	$self->activate_recursive;	2670	$self->activate_recursive;
1803	$self->enter_map ($map, $x, $y);
1804	}
1805
1806	cf::player->attach (
1807	on_logout => sub {
1808	my ($pl) = @_;
1809
1810	# abort map switching before logout
1811	if ($pl->ob->{_link_pos}) {
1812	cf::sync_job {
1813	$pl->ob->leave_link
1814	};
1815	}
1816	},	2671	}
1817	on_login => sub {
1818	my ($pl) = @_;
1819		2672
1820	# try to abort aborted map switching on player login :)	2673	}
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837		2674
1838	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1839		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
1840	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1841		2689
1842	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1843	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;
1844		2701
1845	$self->enter_link;	2702	$self->enter_link;
1846		2703
1847	(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
1848	my $map = eval {	2726	my $map = eval {
1849	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1850	$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
1851	$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 $@;
1852	} or	2742	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1856	})->prio (1);	2750	})->prio (1);
1857	}	2751	}
1858		2752
1859	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1860		2754
…		…
1880	}	2774	}
1881		2775
1882	sub prepare_random_map {	2776	sub prepare_random_map {
1883	my ($exit) = @_;	2777	my ($exit) = @_;
1884		2778
1885	my $guard = cf::lock_acquire "exit_prepare:$exit";
1886
1887	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1888	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1889	# that depends on the exit object	2781	# that depends on the exit object
1890		2782
1891	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
1893	if ($exit->map) {	2785	if ($exit->map) {
1894	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
1895	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1896	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1897	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1898	}	2792	}
1899		2793
1900	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1901		2795
1902	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1903	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1905		2799
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2802	undef $fh;
1909	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1910		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1911	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1912	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1913	}	2811	}
1914	}	2812	}
1915		2813
1916	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1917	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1918		2816
1919	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1920		2818
1921	if ($exit->slaying eq "/!") {
1922	#TODO: this should de-fi-ni-te-ly not be a sync-job
1923	cf::sync_job { prepare_random_map $exit };
1924	}
1925
1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927	my $hp = $exit->stats->hp;
1928	my $sp = $exit->stats->sp;
1929
1930	$self->enter_link;	2819	$self->enter_link;
1931		2820
1932	(async {	2821	(async {
1933	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1934	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
1935	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
1936		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
1937	1;	2845	1
1938	}) {	2846	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1940	. "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. "
1941	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2851
1944	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2853	$self->leave_link;
1946	}	2854	}
1947	})->prio (1);	2855	})->prio (1);
…		…
1960		2868
1961	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1963		2871
1964	utf8::encode $text;	2872	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2874	}
1967		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
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		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	}
		3096	}
1968		3097
1969	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1970		3099
1971	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1972	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>,
1973	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>.
1974		3103
1975	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
1976	reliable at some point in the future.	3105	become reliable at some point in the future.
1977		3106
1978	=cut	3107	=cut
1979		3108
1980	sub cf::client::query {	3109	sub cf::client::query {
1981	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1989	utf8::encode $text;	3118	utf8::encode $text;
1990	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1991		3120
1992	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1993	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1994	}	3125	}
1995		3126
1996	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	},
1997	on_reply => sub {	3133	on_reply => sub {
1998	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1999		3135
2000	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2001	# get handled first	3137	# get handled first
2002	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		3140
2005	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		3143
2007	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
2008		3145
2009	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	3147	if (@$queue) {
…		…
2012	} else {	3149	} else {
2013	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2014	}	3151	}
2015	}	3152	}
2016	},	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	},
2017	);	3180	);
2018		3181
2019	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2020		3183
2021	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2037		3200
2038	$coro	3201	$coro
2039	}	3202	}
2040		3203
2041	cf::client->attach (	3204	cf::client->attach (
2042	on_destroy => sub {	3205	on_client_destroy => sub {
2043	my ($ns) = @_;	3206	my ($ns) = @_;
2044		3207
2045	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2046	},	3209	},
2047	);	3210	);
…		…
2062	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2063	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2064		3227
2065	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2066		3229
2067	$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	));
2068		3235
2069	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2070		3237
2071	=pod	3238	=pod
2072		3239
2073	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2074		3241
2075	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
2076	cf::object::player player	3247	cf::object::player
2077	cf::player peaceful	3248	player
2078	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2079		3255
2080	=cut	3256	=cut
2081		3257
2082	for (	3258	for (
2083	["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)],
2084	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2085	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2086	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2087	) {	3265	) {
2088	no strict 'refs';	3266	no strict 'refs';
2089	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2090	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2108		3286
2109	my $qcode = $code;	3287	my $qcode = $code;
2110	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2111	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2112		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2113	local $_;	3294	local $_;
2114	local @safe::cf::_safe_eval_args = values %vars;
2115		3295
2116	my $eval =	3296	my $eval =
2117	"do {\n"	3297	"do {\n"
2118	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2119	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2120	. $code	3300	. $code
2121	. "\n}"	3301	. "\n}"
2122	;	3302	;
2123		3303
		3304	if ($CFG{safe_eval}) {
2124	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2125	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2126	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	}
2127		3313
2128	if ($@) {	3314	if ($@) {
2129	warn "$@";	3315	warn "$@";
2130	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2131	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2150	=cut	3336	=cut
2151		3337
2152	sub register_script_function {	3338	sub register_script_function {
2153	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2154		3340
2155	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2156	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2157	}	3343	}
2158		3344
2159	=back	3345	=back
2160		3346
2161	=cut	3347	=cut
2162		3348
2163	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
2164		3351
2165	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
2166		3354
2167	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
2168	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
2169	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
2170		3358
2171	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2172	using it, it should be unique.
2173		3360
2174	=over 4	3361	warn "loading facedata from $path\n";
2175		3362
2176	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
2177		3366
2178	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181		3368
2182	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2183		3371
2184	Returns a single value from the database	3372	# patch in the exptable
2185		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2186	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
2187		3375	type => FT_RSRC,
2188	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203
2204	=cut
2205
2206	our $DB;
2207
2208	{
2209	my $path = cf::localdir . "/database.pst";
2210
2211	sub db_load() {
2212	$DB = stat $path ? Storable::retrieve $path : { };
2213	}	3378	};
		3379	cf::cede_to_tick;
2214		3380
2215	my $pid;
2216
2217	sub db_save() {
2218	waitpid $pid, 0 if $pid;
2219	if (0 == ($pid = fork)) {
2220	$DB->{_meta}{version} = 1;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}
2225	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
2226		3383
2227	my $dirty;	3384	while (my ($face, $info) = each %$faces) {
		3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2228		3386
2229	sub db_sync() {	3387	cf::face::set_visibility $idx, $info->{visibility};
2230	db_save if $dirty;	3388	cf::face::set_magicmap $idx, $info->{magicmap};
2231	undef $dirty;	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2232	}	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2233		3391
2234	my $idle = Event->idle (	3392	cf::cede_to_tick;
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {
2249	@_ >= 2
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253
2254	sub db_put($$;$) {
2255	if (@_ >= 3) {
2256	$DB->{$_[0]}{$_[1]} = $_[2];
2257	} else {
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262
2263	cf::global->attach (
2264	prio => 10000,
2265	on_cleanup => sub {
2266	db_sync;
2267	},	3393	}
2268	);
2269	}
2270		3394
2271	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
2272	# the server's main()	3396	next unless $info->{smooth};
2273		3397
2274	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		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
		3442	1
		3443	}
		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	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
		3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2275	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	3527	or return;
2277		3528
2278	local $/;	3529	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2280		3531
2281	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2282		3533
2283	$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};
2284	$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};
2285		3536
2286	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2288	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2289	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2290	};	3541	};
2291	warn $@ if $@;	3542	warn $@ if $@;
2292	}	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;
2293	}	3574	}
2294		3575
2295	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
2296	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2297	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2298	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#
2299	(async {	3589	(async {
2300	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2301	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2302	};	3593	};
2303		3594
2304	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2305	db_load;	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;
		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
2306	load_extensions;	3618	load_extensions;
2307		3619
2308	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2309	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;
2310	}	3633	}
2311		3634
2312	#############################################################################	3635	#############################################################################
2313	# initialisation and cleanup	3636	# initialisation and cleanup
2314		3637
2315	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2316	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2317	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2318	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2319	reentrant => 0,
2320	data => WF_AUTOCANCEL,
2321	signal => $signal,
2322	prio => 0,
2323	cb => sub {
2324	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2325	},
2326	);	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
2327	}	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 };
2328	}	3734	}
2329		3735
2330	sub emergency_save() {	3736	sub emergency_save() {
2331	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2332		3738
2333	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2334		3740
2335	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
2336	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2337	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2338	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2339	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2340	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2341	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2342	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2343	$pl->save;	3755	$pl->save;
2344	}	3756	}
2345	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2346		3758
2347	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2348	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2349	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	3762	$map->valid or next;
2351	$map->save;	3763	$map->save;
2352	}	3764	}
2353	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2354	};	3774	};
2355		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2356	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2357	}	3782	}
2358		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		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	}
		3817	}
		3818
2359	sub reload() {	3819	sub do_reload_perl() {
2360	# can/must only be called in main	3820	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2362	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2363	return;	3823	return;
2364	}	3824	}
2365		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2366	warn "reloading...";	3831	warn "reloading...";
2367		3832
2368	warn "cancelling server ticker";	3833	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2371	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2372		3839
2373	eval {	3840	warn "syncing database to disk";
		3841	BDB::db_env_txn_checkpoint $DB_ENV;
		3842
2374	# 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
2375		3844
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378
2379	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}
2383
2384	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2385	for (;;) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2386	IO::AIO::flush;	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2387	Coro::cede;
2388	last unless IO::AIO::nreqs;
2389	warn "iterate...";
2390	}
2391
2392	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();
2395
2396	warn "removing commands";
2397	%COMMAND = ();
2398
2399	warn "removing ext commands";
2400	%EXTCMD = ();
2401
2402	warn "unloading/nuking all extensions";
2403	for my $pkg (@EXTS) {
2404	warn "... unloading $pkg";
2405
2406	if (my $cb = $pkg->can ("unload")) {
2407	eval {
2408	$cb->($pkg);
2409	1
2410	} or warn "$pkg unloaded, but with errors: $@";
2411	}	3848	}
2412		3849
2413	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2414	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2415	}	3852	%EXT_CORO = ();
2416		3853
2417	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2418	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2419	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2420		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2421	warn "... unloading $k";	3863	warn "... unloading $pkg";
2422	delete $INC{$k};
2423		3864
2424	$k =~ s/\.pm$//;
2425	$k =~ s/\//::/g;
2426
2427	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2428	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2429	}	3874	}
2430		3875
2431	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;
2432	}	3891	}
2433		3892
2434	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2435	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2436	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);
2437		3896
2438	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2440		3900
2441	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2442	# and global variables created in xs	3902	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2444		3904
2445	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2446		3906
2447	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2448	require cf;	3908	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2450		3910
2451	warn "loading config and database again";	3911	warn "loading config and database again";
2452	cf::cfg_load;	3912	cf::reload_config;
2453	cf::db_load;
2454		3913
2455	warn "loading extensions";	3914	warn "loading extensions";
2456	cf::load_extensions;	3915	cf::load_extensions;
2457		3916
		3917	if ($REATTACH_ON_RELOAD) {
2458	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2459	_global_reattach;	3919	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
2462		3925
2463	warn "restarting server ticker";	3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
2464		3928
2465	$TICK_WATCHER->start;	3929	warn "leaving sync_job";
		3930
		3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2466	};	3958	};
2467		3959	}
2468	if ($@) {
2469	warn $@;
2470	warn "error while reloading, exiting.";
2471	exit 1;
2472	}
2473
2474	warn "reloaded";
2475	};
2476
2477	our $RELOAD_WATCHER; # used only during reload
2478		3960
2479	register_command "reload" => sub {	3961	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2481		3963
2482	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2484		3966	async {
2485	# doing reload synchronously and two reloads happen back-to-back,	3967	$Coro::current->{desc} = "perl_reload";
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;	3968	reload_perl;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);	3969	};
2497	}	3970	}
2498	};	3971	};
2499		3972
2500	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2501		3974
2502	my $bug_warning = 0;	3975	my $bug_warning = 0;
2503		3976
2504	$TICK_WATCHER = Event->timer (	3977	our @WAIT_FOR_TICK;
2505	reentrant => 0,	3978	our @WAIT_FOR_TICK_BEGIN;
2506	parked => 1,	3979
2507	prio => 0,	3980	sub wait_for_tick {
2508	at => $NEXT_TICK || $TICK,	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2509	data => WF_AUTOCANCEL,	3982
2510	cb => sub {	3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
2511	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2512	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"
2513	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2514	return;	4000	return;
2515	}	4001	}
2516		4002
2517	$NOW = Event::time;
2518
2519	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2520	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;
2522		4004
2523	$WAIT_FOR_TICK->broadcast;	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2525		4006
2526	Event::sweep;	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2527	Coro::cede_notself;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2528		4009	Coro::async_pool {
2529	# my $AFTER = Event::time;	4010	$Coro::current->{desc} = "runtime saver";
2530	# warn $AFTER - $NOW;#d#
2531
2532	# if we are delayed by four ticks or more, skip them all
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2534
2535	$TICK_WATCHER->at ($NEXT_TICK);
2536	$TICK_WATCHER->start;
2537	},
2538	);
2539
2540	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,
2545	fd => IO::AIO::poll_fileno,
2546	poll => 'r',
2547	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,
2550	);
2551
2552	$WRITE_RUNTIME_WATCHER = Event->timer (
2553	reentrant => 0,
2554	data => WF_AUTOCANCEL,
2555	after => 1,
2556	interval => 10,
2557	prio => 6, # keep it lowest so it acts like a watchdog
2558	cb => Coro::unblock_sub {
2559	write_runtime	4011	write_runtime_sync
2560	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
		4013	};
2561	},	4014	}
2562	);	4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		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	}
		4034
		4035	{
		4036	# configure BDB
		4037
		4038	BDB::min_parallel 16;
		4039	BDB::max_poll_reqs $TICK * 0.1;
		4040	$AnyEvent::BDB::WATCHER->priority (1);
		4041
		4042	unless ($DB_ENV) {
		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);
		4049
		4050	cf::sync_job {
		4051	eval {
		4052	BDB::db_env_open
		4053	$DB_ENV,
		4054	$BDBDIR,
		4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4057	0666;
		4058
		4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4060	};
		4061
		4062	cf::cleanup "db_env_open(db): $@" if $@;
		4063	};
		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	};
		4075	}
		4076
		4077	{
		4078	# configure IO::AIO
		4079
		4080	IO::AIO::min_parallel 8;
		4081	IO::AIO::max_poll_time $TICK * 0.1;
		4082	undef $AnyEvent::AIO::WATCHER;
		4083	}
		4084
		4085	my $_log_backtrace;
		4086
		4087	sub _log_backtrace {
		4088	my ($msg, @addr) = @_;
		4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
		4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2563		4130
2564	END { cf::emergency_save }	4131	END { cf::emergency_save }
2565		4132
2566	1	4133	1
2567		4134

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