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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.242 by root, Mon Apr 16 12:37:08 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
21	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
22		54
		55	use JSON::XS 2.01 ();
23	use BDB ();	56	use BDB ();
24	use Data::Dumper;	57	use Data::Dumper;
25	use Digest::MD5;
26	use Fcntl;	58	use Fcntl;
27	use YAML::Syck ();	59	use YAML::XS ();
28	use IO::AIO 2.32 ();	60	use IO::AIO ();
29	use Time::HiRes;	61	use Time::HiRes;
30	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
31		66
32	# configure various modules to our taste	67	# configure various modules to our taste
33	#	68	#
34	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37		77
38	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
39		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		80
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		82
47	our %COMMAND = ();	83	our %COMMAND = ();
48	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
49		85
50	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
54		91
55	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	93	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
58		96
59	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	98	our $DATADIR = datadir;
61	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		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(!)
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	121	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
69		130
70	our %CFG;	131	our %CFG;
71		132
72	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
74		136
75	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		140
81	# 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 ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $REALLY_UNLOOP; # never set to true, please :)
		153
84	binmode STDOUT;	154	binmode STDOUT;
85	binmode STDERR;	155	binmode STDERR;
86		156
87	# read virtual server time, if available	157	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
92	}	162	}
93		163
94	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	165
96	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		168
101	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
102		170
103	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::"} };
104		187
105	#############################################################################	188	#############################################################################
106		189
107	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
108		191
…		…
115	=item $cf::RUNTIME	198	=item $cf::RUNTIME
116		199
117	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
118	every server tick.	201	every server tick.
119		202
120	=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
121		206
122	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		211
125	=item $cf::NOW	212	=item $cf::NOW
126		213
127	The time of the last (current) server tick.	214	The time of the last (current) server tick.
128		215
129	=item $cf::TICK	216	=item $cf::TICK
130		217
131	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
132		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
133	=item %cf::CFG	230	=item %cf::CFG
134		231
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	233	from wherever your confdir points to.
137		234
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		236
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	238	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
144	=back	253	=back
145		254
146	=cut	255	=cut
147		256
148	BEGIN {	257	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	258	my $msg = join "", @_;
151	utf8::encode $msg;
152		259
153	$msg .= "\n"	260	$msg .= "\n"
154	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
155		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
156	LOG llevError, $msg;	265	LOG llevError, $msg;
157	};	266	};
158	}	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	};
159		281
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		289
167	# 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
168	# within the Safe compartment.	291	# within the Safe compartment.
169	for my $pkg (qw(	292	for my $pkg (qw(
170	cf::global cf::attachable	293	cf::global cf::attachable
171	cf::object cf::object::player	294	cf::object cf::object::player
172	cf::client cf::player	295	cf::client cf::player
173	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
174	cf::map cf::party cf::region	298	cf::party cf::region
175	)) {	299	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	301	}
179		302
180	$Event::DIED = sub {	303	$EV::DIED = sub {
181	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
182	};	305	};
		306
		307	#############################################################################
183		308
184	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
185		310
186	=over 4	311	=over 4
187		312
…		…
206	$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;
207	$d	332	$d
208	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
209	}	334	}
210		335
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
214		337
215	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
216		339
217	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
218		341
219	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
220		343
		344	=cut
		345
		346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		347
		348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
		363	}
		364
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	}
		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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
268	};	472	}
269	$TICK_WATCHER->stop;	473	};
270	$guard	474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
271	}	488	}
272		489
273	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
274		491
275	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		497
281	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
282		499
283	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
284		501
285	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
288		506
289	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
292	fast or be very important.	510	fast or be very important.
…		…
295		513
296	sub sync_job(&) {	514	sub sync_job(&) {
297	my ($job) = @_;	515	my ($job) = @_;
298		516
299	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
300	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
302		522
303	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	524
305	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
306		526
307	my $busy = 1;	527	my $busy = 1;
308	my @res;	528	my @res;
309		529
310	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	532	@res = eval { $job->() };
312	warn $@ if $@;	533	warn $@ if $@;
313	undef $busy;	534	undef $busy;
314	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
315		536
316	while ($busy) {	537	while ($busy) {
317	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
318	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
319		548
320	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
321	} else {	550	} else {
322	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
323		552
…		…
343	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
344		573
345	$coro	574	$coro
346	}	575	}
347		576
348	sub write_runtime {	577	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		578
351	my $runtime = cf::localdir . "/runtime";	579	Executes the given code block with the given arguments in a seperate
		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.
352		583
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	584	=cut
354	or return;
355		585
356	my $value = $cf::RUNTIME + 90 + 10;	586	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	587	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		588
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	589	# we seemingly have to make a local copy of the whole thing,
361	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
362		592
363	# always fsync - this file is important	593	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	594	reset_signals;
365	and return;	595	&$cb
		596	}, @args;
366		597
367	close $fh	598	wantarray ? @res : $res[-1]
368	or return;	599	}
369		600
370	aio_rename "$runtime~", $runtime	601	sub objinfo {
371	and return;
372
373	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"
374	}	764	}
375		765
376	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
377		767
378	Log a datalog packet of the given type with the given key-value pairs.	768	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		780
391	#############################################################################	781	#############################################################################
392		782
393	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
394		784
395	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
396	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")
397	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
398		788
399	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>
400	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
401	crossfire+).	791	Deliantra).
402		792
403	=over 4	793	=over 4
404		794
405	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
406		796
…		…
450	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
451		841
452	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
454		844
455	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
456	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.
457		847
458	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
459		849
460	=over 4	850	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
570		960
571	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		965
576	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	967	my $pkg = shift @arg;
578		968
579	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
609	}	999	}
610		1000
611	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
612	} else {	1002	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	1004	}
615		1005
616	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
617	}	1007	}
618		1008
…		…
620	if (ref $_[0]) {	1010	if (ref $_[0]) {
621	_object_attach @_;	1011	_object_attach @_;
622	} else {	1012	} else {
623	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
624	}	1014	}
		1015	_recalc_want;
625	};	1016	};
626		1017
627	# all those should be optimised	1018	# all those should be optimised
628	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1024	reattach ($obj);
634	} else {	1025	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
636	}	1027	}
		1028	_recalc_want;
637	};	1029	};
638		1030
639	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
641		1033
…		…
656	";	1048	";
657	die if $@;	1049	die if $@;
658	}	1050	}
659		1051
660	our $override;	1052	our $override;
661	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?
662		1054
663	sub override {	1055	sub override {
664	$override = 1;	1056	$override = 1;
665	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
666	}	1058	}
667		1059
668	sub do_invoke {	1060	sub do_invoke {
669	my $event = shift;	1061	my $event = shift;
670	my $callbacks = shift;	1062	my $callbacks = shift;
671		1063
672	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
673		1065
674	local $override;	1066	local $override;
675		1067
676	for (@$callbacks) {	1068	for (@$callbacks) {
677	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
686	}	1078	}
687		1079
688	0	1080	0
689	}	1081	}
690		1082
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1084
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1086
695	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
696		1088
697	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
698	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
699	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1092
701	=back	1093	=back
702		1094
703	=cut	1095	=cut
704		1096
705	#############################################################################	1097	#############################################################################
706	# 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, $ob2
		1140	}
707		1141
708	sub reattach {	1142	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1144	my ($obj) = @_;
711		1145
		1146	# no longer needed after getting rid of delete_package?
712	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
713		1148
714	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
715		1150
716	@$registry = ();	1151	@$registry = ();
717		1152
…		…
732	cf::attachable->attach (	1167	cf::attachable->attach (
733	prio => -1000000,	1168	prio => -1000000,
734	on_instantiate => sub {	1169	on_instantiate => sub {
735	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
736		1171
737	$data = from_json $data;	1172	$data = decode_json $data;
738		1173
739	for (@$data) {	1174	for (@$data) {
740	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
741		1176
742	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1193	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
760		1195
761	sync_job {	1196	sync_job {
762	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
765		1202
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1208	aio_fsync $fh;
		1209	}
770	close $fh;	1210	aio_close $fh;
771		1211
772	if (@$objs) {	1212	if (@$objs) {
773	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) {
774	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1219	aio_fsync $fh;
		1220	}
778	close $fh;	1221	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
780	}	1223	}
781	} else {	1224	} else {
782	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
783	}	1226	}
784		1227
785	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1232	} else {
787	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
788	}	1234	}
789	} else {	1235	} else {
790	aio_unlink $filename;	1236	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
792	}	1238	}
793	}	1239	};
794	}	1240	}
795		1241
796	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
798		1244
…		…
810	or return;	1256	or return;
811		1257
812	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
814	or return;	1260	or return;
		1261
815	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
816	}	1264	}
817		1265
		1266	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
820	return ($data, $av);	1271	($data, $av)
821	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
822		1279
823	#############################################################################	1280	#############################################################################
824	# command handling &c	1281	# command handling &c
825		1282
826	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1297	}
841		1298
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1300
844	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.
845		1306
846	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
847	called.	1308	called.
848		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
849	=cut	1321	=cut
850		1322
851	sub register_extcmd {	1323	sub register_extcmd {
852	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
853		1325
854	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
855	}	1327	}
856		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
857	cf::player->attach (	1337	cf::player->attach (
858	on_command => sub {	1338	on_unknown_command => sub {
859	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
860		1340
861	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
862	or return;	1342	or return;
863		1343
…		…
868	cf::override;	1348	cf::override;
869	},	1349	},
870	on_extcmd => sub {	1350	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
872		1352
873	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1354
875	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
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
881	} else {	1370	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1372	}
884		1373
885	cf::override;	1374	cf::override;
886	},	1375	},
887	);	1376	);
888		1377
		1378	# "readahead" all extensions
889	sub load_extension {	1379	sub cache_extensions {
890	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
891		1381
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1385	}
917	die $@;
918	}	1386	};
919		1387
920	push @EXTS, $pkg;	1388	$grp
921	}	1389	}
922		1390
923	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
924	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1396	next unless -r $path;
926	eval {	1397
927	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 $active;
		1460	}
928	1	1461	}
929	} or warn "$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	}
930	}	1472	};
931	}	1473	}
932		1474
933	#############################################################################	1475	#############################################################################
934		1476
		1477	=back
		1478
935	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
936		1480
937	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
938		1482
939	=cut	1483	=cut
940		1484
941	package cf::player;	1485	package cf::player;
942		1486
…		…
944		1488
945	=head3 cf::player	1489	=head3 cf::player
946		1490
947	=over 4	1491	=over 4
948		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
949	=item cf::player::find $login	1507	=item cf::player::find $login
950		1508
951	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
952		1510
953	=cut	1511	=cut
954		1512
955	sub playerdir($) {	1513	sub playerdir($) {
956	cf::localdir	1514	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1516	}
962		1517
963	sub path($) {	1518	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1529
975	sub exists($) {	1530	sub exists($) {
976	my ($login) = @_;	1531	my ($login) = @_;
977		1532
978	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
980	}	1535	}
981		1536
982	sub find($) {	1537	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1539	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
995		1550
996	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
997	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;
998	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
999	}	1560	}
1000	}	1561	}
1001	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
1002		1576
1003	sub save($) {	1577	sub save($) {
1004	my ($pl) = @_;	1578	my ($pl) = @_;
1005		1579
1006	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1011	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1012		1586
1013	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1015		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
1016	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1017	Coro::cede;	1596	cf::cede_to_tick;
1018	}	1597	}
1019		1598
1020	sub new($) {	1599	sub new($) {
1021	my ($login) = @_;	1600	my ($login) = @_;
1022		1601
…		…
1028	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1029		1608
1030	$self	1609	$self
1031	}	1610	}
1032		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
1033	=item $pl->quit_character	1622	=item $pl->quit_character
1034		1623
1035	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1037		1626
…		…
1041	my ($pl) = @_;	1630	my ($pl) = @_;
1042		1631
1043	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1044		1633
1045	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1046	$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
1047		1636
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1052		1642
1053	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1085		1675
1086	=cut	1676	=cut
1087		1677
1088	sub list_logins {	1678	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1680	or return [];
1091		1681
1092	my @logins;	1682	my @logins;
1093		1683
1094	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") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1098		1694
1099	utf8::decode $login;	1695	utf8::decode $login;
1100	push @logins, $login;	1696	push @logins, $login;
1101	}	1697	}
1102		1698
1103	\@logins	1699	\@logins
1104	}	1700	}
1105		1701
1106	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1107		1705
1108	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1109	player. May block.	1707	player. May block.
1110		1708
1111	=cut	1709	=cut
…		…
1129	}	1727	}
1130		1728
1131	\@paths	1729	\@paths
1132	}	1730	}
1133		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1134	=item $player->ext_reply ($msgid, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1135		1737
1136	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1137		1739
1138	=cut	1740	=cut
1139		1741
1140	sub ext_reply($$%) {	1742	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1142		1744
1143	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1746	}
1147		1747
1148	=item $player->ext_event ($type, %msg)	1748	=item $player->ext_msg ($type, @msg)
1149		1749
1150	Sends an ext event to the client.	1750	Sends an ext event to the client.
1151		1751
1152	=cut	1752	=cut
1153		1753
1154	sub ext_event($$%) {	1754	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1755	my ($self, $type, @msg) = @_;
1156		1756
1157	$self->ns->ext_event ($type, %msg);	1757	$self->ns->ext_msg ($type, @msg);
1158	}	1758	}
1159		1759
1160	=head3 cf::region	1760	=head3 cf::region
1161		1761
1162	=over 4	1762	=over 4
…		…
1165		1765
1166	package cf::region;	1766	package cf::region;
1167		1767
1168	=item cf::region::find_by_path $path	1768	=item cf::region::find_by_path $path
1169		1769
1170	Tries to decuce the probable region for a map knowing only its path.	1770	Tries to decuce the likely region for a map knowing only its path.
1171		1771
1172	=cut	1772	=cut
1173		1773
1174	sub find_by_path($) {	1774	sub find_by_path($) {
1175	my ($path) = @_;	1775	my ($path) = @_;
1176		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
1177	my ($match, $specificity);	1779	my ($match, $specificity);
1178		1780
1179	for my $region (list) {	1781	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1782	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1783	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1784	if $region->specificity > $specificity;
1183	}	1785	}
1184	}	1786	}
1185		1787
…		…
1206	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1208		1810
1209	sub generate_random_map {	1811	sub generate_random_map {
1210	my ($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
1211	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1817	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1216	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1217	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1241		1846
1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1243	}	1848	}
1244		1849
1245	# also paths starting with '/'	1850	# also paths starting with '/'
1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1247		1852
1248	sub thawer_merge {	1853	sub thawer_merge {
1249	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1250		1855
1251	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1252	local $self->{path};	1857	local $self->{path};
1253	local $self->{load_path};	1858	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1859
1257	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1258	}	1861	}
1259		1862
1260	sub normalise {	1863	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1308	return $self;	1911	return $self;
1309	}	1912	}
1310	}	1913	}
1311		1914
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1916	()
1314	}	1917	}
1315		1918
1316	sub init {	1919	sub init {
1317	my ($self) = @_;	1920	my ($self) = @_;
…		…
1332		1935
1333	# the original (read-only) location	1936	# the original (read-only) location
1334	sub load_path {	1937	sub load_path {
1335	my ($self) = @_;	1938	my ($self) = @_;
1336		1939
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1338	}	1941	}
1339		1942
1340	# the temporary/swap location	1943	# the temporary/swap location
1341	sub save_path {	1944	sub save_path {
1342	my ($self) = @_;	1945	my ($self) = @_;
1343		1946
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1346	}	1949	}
1347		1950
1348	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1349	sub uniq_path {	1952	sub uniq_path {
1350	my ($self) = @_;	1953	my ($self) = @_;
1351		1954
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1354	}	1957	}
1355		1958
1356	# and all this just because we cannot iterate over	1959	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1960	my ($self) = @_;
1360		1961
1361	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1363	}	1965	}
1364		1966
1365	sub unlink_save {	1967	sub unlink_save {
1366	my ($self) = @_;	1968	my ($self) = @_;
1367		1969
…		…
1372		1974
1373	sub load_header_from($) {	1975	sub load_header_from($) {
1374	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1375		1977
1376	utf8::encode $path;	1978	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	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;
1382		1987
1383	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1384		1989
1385	1	1990	1
1386	}	1991	}
…		…
1425	$self->load_header_orig	2030	$self->load_header_orig
1426	or return;	2031	or return;
1427	$self->prepare_orig;	2032	$self->prepare_orig;
1428	}	2033	}
1429		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
1430	$self->default_region (cf::region::find_by_path $self->{path})	2038	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	2039	unless $self->default_region;
1432		2040
1433	1	2041	1
1434	}	2042	}
…		…
1437	sub find {	2045	sub find {
1438	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1439		2047
1440	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1441		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1443		2052
1444	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1447	or return;	2055	or return;
1448		2056
1449	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1450		2058
1451	$map->load_header	2059	$map->load_header
1452	or return;	2060	or return;
1453		2061
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1457	$map->reset;	2067	$map->reset;
1458	undef $guard;
1459	return find $path;	2068	return find $path;
1460	}	2069	}
1461		2070
1462	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1463	}	2072	}
1464	}	2073	}
1465		2074
1466	sub pre_load { }	2075	sub pre_load { }
1467	sub post_load { }	2076	#sub post_load { } # XS
1468		2077
1469	sub load {	2078	sub load {
1470	my ($self) = @_;	2079	my ($self) = @_;
1471		2080
1472	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1473		2082
1474	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1476		2087
		2088	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2090
1479	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1480		2092
1481	$self->alloc;	2093	$self->alloc;
1482		2094
1483	$self->pre_load;	2095	$self->pre_load;
1484	Coro::cede;	2096	cf::cede_to_tick;
1485		2097
1486	$self->_load_objects ($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)
1487	or return;	2101	or return;
1488		2102
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1490	if delete $self->{load_original};	2104	if delete $self->{load_original};
1491		2105
1492	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2107	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2110	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1497	}	2114	}
1498	}	2115	}
1499		2116
1500	Coro::cede;	2117	$f->resolve_delayed_derefs;
		2118
		2119	cf::cede_to_tick;
1501	# now do the right thing for maps	2120	# now do the right thing for maps
1502	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2123	unless $self->difficulty;
1513	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1514	$self->activate;	2131	$self->activate;
1515	Coro::cede;	2132	}
		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
		2137	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2138	}
1517		2139
1518	$self->post_load;	2140	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2141	}
1523		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1524	sub customise_for {	2146	sub customise_for {
1525	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1526		2148
1527	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2150	if $self->per_player;
1529		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1530	$self	2155	$self
1531	}	2156	}
1532		2157
1533	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2159	sub load_neighbours {
1535	my ($map) = @_;	2160	my ($map) = @_;
1536		2161
1537	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1538		2163
1539	for (0 .. 3) {	2164	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1541	or next;	2166	or next;
1542	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1543	or next;	2168	or next;
1544	$neigh->load;	2169	$neigh->load;
1545		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2175	}
1549		2176
1550	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1552	or next;	2180	or next;
1553	$neigh->load;	2181	$neigh->load;
1554	}	2182	}
1555	}	2183	}
1556		2184
…		…
1561	}	2189	}
1562		2190
1563	sub do_load_sync {	2191	sub do_load_sync {
1564	my ($map) = @_;	2192	my ($map) = @_;
1565		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1566	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1567	}	2198	}
1568		2199
1569	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1571		2202
1572	sub find_async {	2203	sub find_async {
1573	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1574		2205
1575	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1576		2207
1577	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2210	}
1580		2211
1581	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1582	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1583	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2219	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2220	$map->load if $v;
		2221	}
1588		2222
1589	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1590	}	2224	}
1591	}	2225	}
1592	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1593	};	2227	};
1594	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1595		2229
1596	()	2230	()
1597	}	2231	}
1598		2232
		2233	# common code, used by both ->save and ->swapout
1599	sub save {	2234	sub _save {
1600	my ($self) = @_;	2235	my ($self) = @_;
1601
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
1603		2236
1604	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1605		2238
1606	return unless $self->dirty;	2239	return unless $self->dirty;
1607		2240
…		…
1613	return if $self->{deny_save};	2246	return if $self->{deny_save};
1614		2247
1615	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1616		2249
1617	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1619	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1620		2256
1621	if ($uniq) {	2257	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2260	} else {
1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1626	}	2262	}
1627	}	2263	}
1628		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1629	sub swap_out {	2273	sub swap_out {
1630	my ($self) = @_;	2274	my ($self) = @_;
1631		2275
1632	# save first because save cedes
1633	$self->save;
1634
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1637	return if $self->players;	2280	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
1639	return if $self->{deny_save};
1640		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
1641	$self->clear;	2291	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2292	}
1644		2293
1645	sub reset_at {	2294	sub reset_at {
1646	my ($self) = @_;	2295	my ($self) = @_;
1647		2296
1648	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1651		2299
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2302
…		…
1665	my ($self) = @_;	2313	my ($self) = @_;
1666		2314
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2316
1669	return if $self->players;	2317	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2318
1672	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
1673		2320
1674	$self->in_memory (cf::MAP_SWAPPED);	2321	$self->in_memory (cf::MAP_SWAPPED);
1675		2322
1676	# need to save uniques path	2323	# need to save uniques path
1677	unless ($self->{deny_save}) {	2324	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2328	if $uniq;
1682	}	2329	}
1683		2330
1684	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1685		2332
		2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2335	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2336
1690	$self->unlink_save;	2337	$self->unlink_save;
1691	$self->destroy;	2338	$self->destroy;
1692	}	2339	}
1693		2340
1694	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1695		2342
1696	sub nuke {	2343	sub nuke {
1697	my ($self) = @_;	2344	my ($self) = @_;
1698		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1699	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1700		2350
1701	$self->unlink_save;	2351	$self->unlink_save;
1702		2352
1703	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1704	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2358
1709	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1710		2361
1711	$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	]
1712	}	2399	}
1713		2400
1714	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1715		2402
1716	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2404	instantiated unique items. May block.
1718		2405
1719	=cut	2406	=cut
1720		2407
1721	sub unique_maps() {	2408	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1723	or return;	2410	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2411	utf8::decode $_;
1729	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2414	? ()
1732	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2417	]
1734
1735	\@paths
1736	}	2418	}
1737		2419
1738	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	}
1739		2451
1740	=back	2452	=back
1741		2453
1742	=head3 cf::object	2454	=head3 cf::object
1743		2455
…		…
1747		2459
1748	=over 4	2460	=over 4
1749		2461
1750	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1751		2463
1752	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.
1753		2466
1754	=cut	2467	=cut
1755		2468
1756	sub inv_recursive_;	2469	sub inv_recursive_;
1757	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1760		2473
1761	sub inv_recursive {	2474	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1763	}	2476	}
1764		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
1765	package cf;	2506	package cf;
1766		2507
1767	=back	2508	=back
1768		2509
1769	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1775	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>
1776	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
1777	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1778		2519
1779	=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	};
1780		2535
1781	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2537	# with dialog boxes.
1783	#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
1784	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1786		2541
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2543
1789	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1791	} 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 {
1792	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1794	}	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 (@_);
1795	}	2569	}
1796		2570
1797	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1798		2572
1799	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1812		2586
1813	=item $player_object->enter_link	2587	=item $player_object->enter_link
1814		2588
1815	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}>).
1816		2590
1817	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.
1818	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.
1819		2595
1820	Will never block.	2596	Will never block.
1821		2597
1822	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1823		2599
…		…
1843	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1844	my ($self) = @_;	2620	my ($self) = @_;
1845		2621
1846	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1847		2623
		2624	++$self->{_link_recursion};
		2625
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2627
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1852		2630
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1854	}	2632	}
1855		2633
1856	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1858		2638
1859	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1860		2640
1861	unless ($map) {	2641	unless ($map) {
1862	# restore original map position	2642	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1875		2655
1876	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1879		2659
1880	$map->load;	2660	$map->load;
1881	$map->load_diag;	2661	$map->load_neighbours;
1882		2662
1883	return unless $self->contr->active;	2663	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2664
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2666	if ($self->enter_map ($map, $x, $y)) {
1888	}	2667	# entering was successful
1889		2668	delete $self->{_link_recursion};
1890	cf::player->attach (	2669	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2670	$self->activate_recursive;
1892	my ($pl) = @_;
1893
1894	# abort map switching before logout
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},	2671	}
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2672
1904	# try to abort aborted map switching on player login :)	2673	}
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2674
1922	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1923		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
1924	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1925		2689
1926	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1927	my ($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;
1928		2701
1929	$self->enter_link;	2702	$self->enter_link;
1930		2703
1931	(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
1932	my $map = eval {	2726	my $map = eval {
1933	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1934	$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
1935	$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 $@;
1936	} or	2742	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1940	})->prio (1);	2750	})->prio (1);
1941	}	2751	}
1942		2752
1943	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1944		2754
…		…
1964	}	2774	}
1965		2775
1966	sub prepare_random_map {	2776	sub prepare_random_map {
1967	my ($exit) = @_;	2777	my ($exit) = @_;
1968		2778
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2781	# that depends on the exit object
1974		2782
1975	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2785	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1982	}	2792	}
1983		2793
1984	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1985		2795
1986	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1989		2799
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2802	undef $fh;
1993	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1994		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1997	}	2811	}
1998	}	2812	}
1999		2813
2000	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
2002		2816
2003	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
2004		2818
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2819	$self->enter_link;
2017		2820
2018	(async {	2821	(async {
2019	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
2020	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
2021	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
2022		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
2023	1;	2845	1
2024	}) {	2846	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "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. "
2027	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2851
2030	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
…		…
2049		2871
2050	utf8::encode $text;	2872	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2874	}
2053		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
2054	=item $client->ext_event ($type, %msg)	3063	=item $client->ext_msg ($type, @msg)
2055		3064
2056	Sends an exti event to the client.	3065	Sends an ext event to the client.
2057		3066
2058	=cut	3067	=cut
2059		3068
2060	sub cf::client::ext_event($$%) {	3069	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	3070	my ($self, $type, @msg) = @_;
2062		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	3075	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
2065	}	3096	}
2066		3097
2067	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
2068		3099
2069	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
2070	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>,
2071	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>.
2072		3103
2073	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
2074	reliable at some point in the future.	3105	become reliable at some point in the future.
2075		3106
2076	=cut	3107	=cut
2077		3108
2078	sub cf::client::query {	3109	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3118	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3120
2090	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2092	}	3125	}
2093		3126
2094	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	},
2095	on_reply => sub {	3133	on_reply => sub {
2096	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2097		3135
2098	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2099	# get handled first	3137	# get handled first
…		…
2111	} else {	3149	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3151	}
2114	}	3152	}
2115	},	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	},
2116	);	3180	);
2117		3181
2118	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2119		3183
2120	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2136		3200
2137	$coro	3201	$coro
2138	}	3202	}
2139		3203
2140	cf::client->attach (	3204	cf::client->attach (
2141	on_destroy => sub {	3205	on_client_destroy => sub {
2142	my ($ns) = @_;	3206	my ($ns) = @_;
2143		3207
2144	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2145	},	3209	},
2146	);	3210	);
…		…
2161	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2163		3227
2164	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2165		3229
2166	$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	));
2167		3235
2168	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2169		3237
2170	=pod	3238	=pod
2171		3239
2172	The following functions and methods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2173		3241
2174	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
2175	cf::object::player player	3247	cf::object::player
2176	cf::player peaceful	3248	player
2177	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2178		3255
2179	=cut	3256	=cut
2180		3257
2181	for (	3258	for (
2182	["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)],
2183	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2186	) {	3265	) {
2187	no strict 'refs';	3266	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2207		3286
2208	my $qcode = $code;	3287	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2211		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2212	local $_;	3294	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;
2214		3295
2215	my $eval =	3296	my $eval =
2216	"do {\n"	3297	"do {\n"
2217	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2218	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2219	. $code	3300	. $code
2220	. "\n}"	3301	. "\n}"
2221	;	3302	;
2222		3303
		3304	if ($CFG{safe_eval}) {
2223	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2224	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2225	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	}
2226		3313
2227	if ($@) {	3314	if ($@) {
2228	warn "$@";	3315	warn "$@";
2229	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2230	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2249	=cut	3336	=cut
2250		3337
2251	sub register_script_function {	3338	sub register_script_function {
2252	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2253		3340
2254	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2255	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2256	}	3343	}
2257		3344
2258	=back	3345	=back
2259		3346
2260	=cut	3347	=cut
2261
2262	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333		3348
2334	#############################################################################	3349	#############################################################################
2335	# the server's init and main functions	3350	# the server's init and main functions
2336		3351
2337	sub load_facedata {	3352	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3360
2340	warn "loading facedata from $path\n";	3361	warn "loading facedata from $path\n";
2341		3362
2342	my $facedata;	3363	my $facedata;
2343	0 < aio_load $path, $facedata	3364	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3367	$facedata = Coro::Storable::thaw $facedata;
2347		3368
2348	$facedata->{version} == 2	3369	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
2351	{	3381	{
2352	my $faces = $facedata->{faceinfo};	3382	my $faces = $facedata->{faceinfo};
2353		3383
2354	while (my ($face, $info) = each %$faces) {	3384	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3391
		3392	cf::cede_to_tick;
2360	}	3393	}
2361		3394
2362	while (my ($face, $info) = each %$faces) {	3395	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3396	next unless $info->{smooth};
		3397
2364	my $idx = cf::face::find $face	3398	my $idx = cf::face::find $face
2365	or next;	3399	or next;
		3400
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3404	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3406	}
2371	Coro::cede;	3407
		3408	cf::cede_to_tick;
2372	}	3409	}
2373	}	3410	}
2374		3411
2375	{	3412	{
2376	my $anims = $facedata->{animinfo};	3413	my $anims = $facedata->{animinfo};
2377		3414
2378	while (my ($anim, $info) = each %$anims) {	3415	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3417	cf::cede_to_tick;
2381	}	3418	}
2382		3419
2383	cf::anim::invalidate_all; # d'oh	3420	cf::anim::invalidate_all; # d'oh
2384	}	3421	}
2385		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
2386	1	3442	1
2387	}	3443	}
2388		3444
2389	our $archetypes_loaded;	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});
2390		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
2391	sub load_archetypes {	3502	sub reload_archetypes {
2392	return 1 if $archetypes_loaded++; # current can only load them once	3503	load_resource_file "$DATADIR/archetypes"
2393	# load_archetype_file sprintf "%s/archetypes", cf::datadir;	3504	or die "unable to load archetypes\n";
2394	load_archetype_file sprintf "%s/archetypes", cf::datadir
2395	}	3505	}
2396		3506
2397	sub load_treasures {	3507	sub reload_treasures {
2398	load_treasure_file sprintf "%s/treasures", cf::datadir	3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
2399	}	3510	}
2400		3511
2401	sub reload_resources {	3512	sub reload_resources {
2402	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3513	warn "reloading resource files...\n";
2403	or die "unable to load regions file\n";	3514
2404	load_facedata	3515	reload_facedata;
2405	or die "unable to load facedata\n";
2406	load_archetypes	3516	reload_archetypes;
2407	or die "unable to load archetypes\n";	3517	reload_regions;
2408	load_treasures	3518	reload_treasures;
2409	or die "unable to load treasurelists\n";
2410	}
2411		3519
2412	sub init {	3520	warn "finished reloading resource files\n";
2413	reload_resources;
2414	}	3521	}
2415		3522
2416	sub cfg_load {	3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2417	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2418	or return;	3527	or return;
2419		3528
2420	local $/;	3529	local $/;
2421	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2422		3531
2423	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2424		3533
2425	$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};
2426	$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};
2427		3536
2428	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2430	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2431	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2432	};	3541	};
2433	warn $@ if $@;	3542	warn $@ if $@;
2434	}	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;
2435	}	3574	}
2436		3575
2437	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
2438	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2439	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2440	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#
2441	(async {	3589	(async {
2442	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2443	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2444	};	3593	};
2445		3594
2446	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
		3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
2447	db_init;	3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2448	load_extensions;	3618	load_extensions;
2449		3619
2450	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2451	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;
2452	}	3633	}
2453		3634
2454	#############################################################################	3635	#############################################################################
2455	# initialisation and cleanup	3636	# initialisation and cleanup
2456		3637
2457	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2458	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2459	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2460	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2461	reentrant => 0,
2462	data => WF_AUTOCANCEL,
2463	signal => $signal,
2464	prio => 0,
2465	cb => sub {
2466	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2467	},
2468	);	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
2469	}	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 };
2470	}	3734	}
2471		3735
2472	sub emergency_save() {	3736	sub emergency_save() {
2473	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2474		3738
2475	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2476		3740
2477	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
2478	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2479	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2480	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2481	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2482	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2483	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2484	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2485	$pl->save;	3755	$pl->save;
2486	}	3756	}
2487	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2488		3758
2489	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2490	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2491	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2492	$map->valid or next;	3762	$map->valid or next;
2493	$map->save;	3763	$map->save;
2494	}	3764	}
2495	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
2496		3766
2497	warn "begin emergency database checkpoint\n";	3767	warn "emergency_perl_save: begin database checkpoint\n";
2498	BDB::db_env_txn_checkpoint $DB_ENV;	3768	BDB::db_env_txn_checkpoint $DB_ENV;
2499	warn "end emergency database checkpoint\n";	3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2500	};	3774	};
2501		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
2502	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2503	}	3782	}
2504		3783
2505	sub post_cleanup {	3784	sub post_cleanup {
2506	my ($make_core) = @_;	3785	my ($make_core) = @_;
2507		3786
2508	warn Carp::longmess "post_cleanup backtrace"	3787	warn Carp::longmess "post_cleanup backtrace"
2509	if $make_core;	3788	if $make_core;
2510	}
2511		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
2512	sub reload() {	3819	sub do_reload_perl() {
2513	# can/must only be called in main	3820	# can/must only be called in main
2514	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2515	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2516	return;	3823	return;
2517	}	3824	}
2518		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2519	warn "reloading...";	3831	warn "reloading...";
2520		3832
2521	warn "entering sync_job";	3833	warn "entering sync_job";
2522		3834
2523	cf::sync_job {	3835	cf::sync_job {
2524	cf::write_runtime; # external watchdog should not bark	3836	cf::write_runtime_sync; # external watchdog should not bark
2525	cf::emergency_save;	3837	cf::emergency_save;
2526	cf::write_runtime; # external watchdog should not bark	3838	cf::write_runtime_sync; # external watchdog should not bark
2527		3839
2528	warn "syncing database to disk";	3840	warn "syncing database to disk";
2529	BDB::db_env_txn_checkpoint $DB_ENV;	3841	BDB::db_env_txn_checkpoint $DB_ENV;
2530		3842
2531	# 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
2532		3844
2533	warn "cancelling all WF_AUTOCANCEL watchers";
2534	for (Event::all_watchers) {
2535	$_->cancel if $_->data & WF_AUTOCANCEL;
2536	}
2537
2538	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2539	for (;;) {
2540	BDB::flush;
2541	IO::AIO::flush;
2542	Coro::cede;
2543	last unless IO::AIO::nreqs || BDB::nreqs;	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2544	warn "iterate...";	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2545	}
2546
2547	++$RELOAD;
2548
2549	warn "cancelling all extension coros";
2550	$_->cancel for values %EXT_CORO;
2551	%EXT_CORO = ();
2552
2553	warn "removing commands";
2554	%COMMAND = ();
2555
2556	warn "removing ext commands";
2557	%EXTCMD = ();
2558
2559	warn "unloading/nuking all extensions";
2560	for my $pkg (@EXTS) {
2561	warn "... unloading $pkg";
2562
2563	if (my $cb = $pkg->can ("unload")) {
2564	eval {
2565	$cb->($pkg);
2566	1
2567	} or warn "$pkg unloaded, but with errors: $@";
2568	}	3848	}
2569		3849
2570	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2571	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2572	}	3852	%EXT_CORO = ();
2573		3853
2574	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2575	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2576	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2577		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2578	warn "... unloading $k";	3863	warn "... unloading $pkg";
2579	delete $INC{$k};
2580		3864
2581	$k =~ s/\.pm$//;
2582	$k =~ s/\//::/g;
2583
2584	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2585	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2586	}	3874	}
2587		3875
2588	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 $k;
2589	}	3891	}
2590		3892
2591	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2592	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2593	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);
2594		3896
2595	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2596	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2597		3900
2598	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2599	# and global variables created in xs	3902	# and global variables created in xs
2600	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2601		3904
2602	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2603		3906
2604	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2605	require cf;	3908	require cf;
2606	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2607		3910
2608	warn "loading config and database again";	3911	warn "loading config and database again";
2609	cf::cfg_load;	3912	cf::reload_config;
2610		3913
2611	warn "loading extensions";	3914	warn "loading extensions";
2612	cf::load_extensions;	3915	cf::load_extensions;
2613		3916
		3917	if ($REATTACH_ON_RELOAD) {
2614	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2615	_global_reattach; # objects, sockets	3919	_global_reattach; # objects, sockets
2616	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2617	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
2618	warn "reattaching attachments to players";	3922	warn "reattaching attachments to players";
2619	reattach $_ for values %PLAYER;	3923	reattach $_ for values %PLAYER;
		3924	}
2620		3925
2621	warn "loading reloadable resources";	3926	warn "running post_init jobs";
2622	reload_resources;	3927	(pop @POST_INIT)->(1) while @POST_INIT;
2623		3928
2624	warn "leaving sync_job";	3929	warn "leaving sync_job";
2625		3930
2626	1	3931	1
2627	} or do {	3932	} or do {
2628	warn $@;	3933	warn $@;
2629	warn "error while reloading, exiting.";	3934	cf::cleanup "error while reloading, exiting.";
2630	exit 1;	3935	};
		3936
		3937	warn "reloaded";
		3938	--$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	};
2631	};	3958	};
2632		3959	}
2633	warn "reloaded";
2634	};
2635
2636	our $RELOAD_WATCHER; # used only during reload
2637		3960
2638	register_command "reload" => sub {	3961	register_command "reload" => sub {
2639	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2640		3963
2641	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2642	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2643		3966	async {
2644	# doing reload synchronously and two reloads happen back-to-back,	3967	$Coro::current->{desc} = "perl_reload";
2645	# coro crashes during coro_state_free->destroy here.
2646
2647	$RELOAD_WATCHER ||= Event->timer (
2648	reentrant => 0,
2649	after => 0,
2650	data => WF_AUTOCANCEL,
2651	cb => sub {
2652	reload;	3968	reload_perl;
2653	undef $RELOAD_WATCHER;
2654	},
2655	);	3969	};
2656	}	3970	}
2657	};	3971	};
2658		3972
2659	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2660		3974
…		…
2662		3976
2663	our @WAIT_FOR_TICK;	3977	our @WAIT_FOR_TICK;
2664	our @WAIT_FOR_TICK_BEGIN;	3978	our @WAIT_FOR_TICK_BEGIN;
2665		3979
2666	sub wait_for_tick {	3980	sub wait_for_tick {
2667	return unless $TICK_WATCHER->is_active;
2668	return if $Coro::current == $Coro::main;	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2669		3982
2670	my $signal = new Coro::Signal;	3983	my $signal = new Coro::Signal;
2671	push @WAIT_FOR_TICK, $signal;	3984	push @WAIT_FOR_TICK, $signal;
2672	$signal->wait;	3985	$signal->wait;
2673	}	3986	}
2674		3987
2675	sub wait_for_tick_begin {	3988	sub wait_for_tick_begin {
2676	return unless $TICK_WATCHER->is_active;
2677	return if $Coro::current == $Coro::main;	3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2678		3990
2679	my $signal = new Coro::Signal;	3991	my $signal = new Coro::Signal;
2680	push @WAIT_FOR_TICK_BEGIN, $signal;	3992	push @WAIT_FOR_TICK_BEGIN, $signal;
2681	$signal->wait;	3993	$signal->wait;
2682	}	3994	}
2683		3995
2684	$TICK_WATCHER = Event->timer (	3996	sub tick {
2685	reentrant => 0,
2686	parked => 1,
2687	prio => 0,
2688	at => $NEXT_TICK || $TICK,
2689	data => WF_AUTOCANCEL,
2690	cb => sub {
2691	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2692	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2693	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2694	return;	4000	return;
2695	}	4001	}
2696		4002
2697	$NOW = Event::time;
2698
2699	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2700	$RUNTIME += $TICK;
2701	$NEXT_TICK += $TICK;
2702		4004
		4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4006
2703	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2704	$NEXT_RUNTIME_WRITE = $NOW + 10;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2705	Coro::async_pool {	4009	Coro::async_pool {
		4010	$Coro::current->{desc} = "runtime saver";
2706	write_runtime	4011	write_runtime_sync
2707	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2708	};
2709	}	4013	};
		4014	}
2710		4015
2711	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2712	$sig->send;	4017	$sig->send;
2713	}	4018	}
2714	while (my $sig = shift @WAIT_FOR_TICK) {	4019	while (my $sig = shift @WAIT_FOR_TICK) {
2715	$sig->send;	4020	$sig->send;
2716	}
2717
2718	# my $AFTER = Event::time;
2719	# warn $AFTER - $NOW;#d#
2720
2721	# if we are delayed by four ticks or more, skip them all
2722	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2723
2724	$TICK_WATCHER->at ($NEXT_TICK);
2725	$TICK_WATCHER->start;
2726	},	4021	}
2727	);	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	}
2728		4034
2729	{	4035	{
2730	BDB::max_poll_time $TICK * 0.1;	4036	# configure BDB
2731	$BDB_POLL_WATCHER = Event->io (	4037
2732	reentrant => 0,
2733	fd => BDB::poll_fileno,
2734	poll => 'r',
2735	prio => 0,
2736	data => WF_AUTOCANCEL,
2737	cb => \&BDB::poll_cb,
2738	);
2739	BDB::min_parallel 8;	4038	BDB::min_parallel 16;
2740		4039	BDB::max_poll_reqs $TICK * 0.1;
2741	BDB::set_sync_prepare {	4040	$AnyEvent::BDB::WATCHER->priority (1);
2742	my $status;
2743	my $current = $Coro::current;
2744	(
2745	sub {
2746	$status = $!;
2747	$current->ready; undef $current;
2748	},
2749	sub {
2750	Coro::schedule while defined $current;
2751	$! = $status;
2752	},
2753	)
2754	};
2755		4041
2756	unless ($DB_ENV) {	4042	unless ($DB_ENV) {
2757	$DB_ENV = BDB::db_env_create;	4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2758		4049
2759	cf::sync_job {	4050	cf::sync_job {
2760	eval {	4051	eval {
2761	BDB::db_env_open	4052	BDB::db_env_open
2762	$DB_ENV,	4053	$DB_ENV,
2763	$BDB_ENV_DIR,	4054	$BDBDIR,
2764	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2765	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2766	0666;	4057	0666;
2767		4058
2768	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2769
2770	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2771	$DB_ENV->set_lk_detect;
2772	};	4060	};
2773		4061
2774	cf::cleanup "db_env_open(db): $@" if $@;	4062	cf::cleanup "db_env_open(db): $@" if $@;
2775	};	4063	};
2776	}	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	};
2777	}	4075	}
2778		4076
2779	{	4077	{
		4078	# configure IO::AIO
		4079
2780	IO::AIO::min_parallel 8;	4080	IO::AIO::min_parallel 8;
2781
2782	undef $Coro::AIO::WATCHER;
2783	IO::AIO::max_poll_time $TICK * 0.1;	4081	IO::AIO::max_poll_time $TICK * 0.1;
2784	$AIO_POLL_WATCHER = Event->io (	4082	undef $AnyEvent::AIO::WATCHER;
2785	reentrant => 0,
2786	data => WF_AUTOCANCEL,
2787	fd => IO::AIO::poll_fileno,
2788	poll => 'r',
2789	prio => 6,
2790	cb => \&IO::AIO::poll_cb,
2791	);
2792	}	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;
2793		4130
2794	END { cf::emergency_save }	4131	END { cf::emergency_save }
2795		4132
2796	1	4133	1
2797		4134

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