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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.246 by root, Tue Apr 17 10:38:28 2007 UTC vs.
Revision 1.520 by root, Fri Apr 16 02:37:50 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 3.61 ();	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
		96
		97	our $CONFDIR = confdir;
		98	our $DATADIR = datadir;
		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 = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
58		115
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	118	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
69		127
70	our %CFG;	128	our %CFG;
71		129
72	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
74		133
75	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	136	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		137
81	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
84	binmode STDOUT;	151	binmode STDOUT;
85	binmode STDERR;	152	binmode STDERR;
86		153
87	# read virtual server time, if available	154	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
92	}	159	}
93		160
94	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	162
96	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		165
101	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
102		167
103	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
104		180
105	#############################################################################	181	#############################################################################
106		182
107	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
108		184
…		…
115	=item $cf::RUNTIME	191	=item $cf::RUNTIME
116		192
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	194	every server tick.
119		195
120	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		199
122	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
124		204
125	=item $cf::NOW	205	=item $cf::NOW
126		206
127	The time of the last (current) server tick.	207	The time of the last (current) server tick.
128		208
129	=item $cf::TICK	209	=item $cf::TICK
130		210
131	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
132		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
133	=item %cf::CFG	223	=item %cf::CFG
134		224
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	226	from wherever your confdir points to.
137		227
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		229
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	230	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	231	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.	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
144	=back	246	=back
145		247
146	=cut	248	=cut
147		249
148	BEGIN {	250	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	251	my $msg = join "", @_;
151	utf8::encode $msg;
152		252
153	$msg .= "\n"	253	$msg .= "\n"
154	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
155		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
156	LOG llevError, $msg;	258	LOG llevError, $msg;
157	};	259	};
158	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
159		274
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		282
167	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	284	# within the Safe compartment.
169	for my $pkg (qw(	285	for my $pkg (qw(
170	cf::global cf::attachable	286	cf::global cf::attachable
171	cf::object cf::object::player	287	cf::object cf::object::player
172	cf::client cf::player	288	cf::client cf::player
173	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
174	cf::map cf::party cf::region	291	cf::party cf::region
175	)) {	292	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	294	}
179		295
180	$Event::DIED = sub {	296	$EV::DIED = sub {
181	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
182	};	298	};
		299
		300	#############################################################################
183		301
184	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
185		303
186	=over 4	304	=over 4
187		305
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	325	$d
208	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
209	}	327	}
210		328
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
214		330
215	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
216		332
217	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
218		334
219	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
220		336
		337	=cut
		338
		339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		340
		341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
		356	}
		357
221	=item cf::lock_wait $string	358	=item cf::lock_wait $string
222		359
223	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
224		361
225	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
226		363
227	Wait until the given lock is available and then acquires it and returns	364	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,	365	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	366	for example when the coroutine gets canceled), the lock is automatically
230	returned.	367	returned.
231		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
232	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
234		374
235	=cut	375	=item $locked = cf::lock_active $string
236		376
237	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
238		382
239	sub lock_wait($) {	383	sub lock_wait($) {
240	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	385	}
248		386
249	sub lock_acquire($) {	387	sub lock_acquire($) {
250	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
251		390
252	# wait, to be sure we are not locked	391	sub lock_active($) {
253	lock_wait $key;	392	$LOCKS->count ($_[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	}	393	}
262		394
263	sub freeze_mainloop {	395	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
265		397
266	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
268	};	465	}
269	$TICK_WATCHER->stop;	466	};
270	$guard	467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
271	}	481	}
272		482
273	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
274		484
275	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		490
281	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
282		492
283	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
284		494
285	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
288		499
289	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
292	fast or be very important.	503	fast or be very important.
…		…
295		506
296	sub sync_job(&) {	507	sub sync_job(&) {
297	my ($job) = @_;	508	my ($job) = @_;
298		509
299	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
300	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
302		515
303	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	517
305	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
306		519
307	my $busy = 1;	520	my $busy = 1;
308	my @res;	521	my @res;
309		522
310	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	525	@res = eval { $job->() };
312	warn $@ if $@;	526	warn $@ if $@;
313	undef $busy;	527	undef $busy;
314	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
315		529
316	while ($busy) {	530	while ($busy) {
317	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
318	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
319		541
320	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
321	} else {	543	} else {
322	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
323		545
…		…
343	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
344		566
345	$coro	567	$coro
346	}	568	}
347		569
348	sub write_runtime {	570	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		571
351	my $runtime = cf::localdir . "/runtime";	572	Executes the given code block with the given arguments in a seperate
		573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
352		576
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
354	or return;
355		578
356	my $value = $cf::RUNTIME + 90 + 10;	579	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	580	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		581
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	582	# we seemingly have to make a local copy of the whole thing,
361	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
362		585
363	# always fsync - this file is important	586	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	587	reset_signals;
365	and return;	588	&$cb
		589	}, @args;
366		590
367	close $fh	591	wantarray ? @res : $res[-1]
368	or return;	592	}
369		593
370	aio_rename "$runtime~", $runtime	594	sub objinfo {
371	and return;
372
373	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
374	}	757	}
375		758
376	=item cf::datalog type => key => value, ...	759	=item cf::datalog type => key => value, ...
377		760
378	Log a datalog packet of the given type with the given key-value pairs.	761	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		773
391	#############################################################################	774	#############################################################################
392		775
393	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
394		777
395	Many objects in crossfire are so-called attachable objects. That means you can	778	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")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
398		781
399	In the following description, CLASS can be any of C<global>, C<object>	782	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	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	784	Deliantra).
402		785
403	=over 4	786	=over 4
404		787
405	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
406		789
…		…
450	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
451		834
452	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
454		837
455	Some classes such as crossfire maps and objects can specify attachments	838	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.	839	that are attached at load/instantiate time, thus the need for a name.
457		840
458	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
459		842
460	=over 4	843	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
570		953
571	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		958
576	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	960	my $pkg = shift @arg;
578		961
579	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
609	}	992	}
610		993
611	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
612	} else {	995	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	997	}
615		998
616	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
617	}	1000	}
618		1001
…		…
620	if (ref $_[0]) {	1003	if (ref $_[0]) {
621	_object_attach @_;	1004	_object_attach @_;
622	} else {	1005	} else {
623	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
624	}	1007	}
		1008	_recalc_want;
625	};	1009	};
626		1010
627	# all those should be optimised	1011	# all those should be optimised
628	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1017	reattach ($obj);
634	} else {	1018	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
636	}	1020	}
		1021	_recalc_want;
637	};	1022	};
638		1023
639	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
641		1026
…		…
656	";	1041	";
657	die if $@;	1042	die if $@;
658	}	1043	}
659		1044
660	our $override;	1045	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		1047
663	sub override {	1048	sub override {
664	$override = 1;	1049	$override = 1;
665	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
666	}	1051	}
667		1052
668	sub do_invoke {	1053	sub do_invoke {
669	my $event = shift;	1054	my $event = shift;
670	my $callbacks = shift;	1055	my $callbacks = shift;
671		1056
672	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
673		1058
674	local $override;	1059	local $override;
675		1060
676	for (@$callbacks) {	1061	for (@$callbacks) {
677	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
686	}	1071	}
687		1072
688	0	1073	0
689	}	1074	}
690		1075
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1077
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1079
695	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
696		1081
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	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	1083	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1085
701	=back	1086	=back
702		1087
703	=cut	1088	=cut
704		1089
705	#############################################################################	1090	#############################################################################
706	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
707		1134
708	sub reattach {	1135	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1137	my ($obj) = @_;
711		1138
		1139	# no longer needed after getting rid of delete_package?
712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
713		1141
714	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
715		1143
716	@$registry = ();	1144	@$registry = ();
717		1145
…		…
732	cf::attachable->attach (	1160	cf::attachable->attach (
733	prio => -1000000,	1161	prio => -1000000,
734	on_instantiate => sub {	1162	on_instantiate => sub {
735	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
736		1164
737	$data = from_json $data;	1165	$data = decode_json $data;
738		1166
739	for (@$data) {	1167	for (@$data) {
740	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
741		1169
742	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1186	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
760		1188
761	sync_job {	1189	sync_job {
762	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
765		1194
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1198	if ($cf::USE_FSYNC) {
		1199	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;
		1200	aio_fsync $fh;
		1201	}
770	close $fh;	1202	aio_close $fh;
771		1203
772	if (@$objs) {	1204	if (@$objs) {
773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
774	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1209	if ($cf::USE_FSYNC) {
		1210	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;
		1211	aio_fsync $fh;
		1212	}
778	close $fh;	1213	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
780	}	1215	}
781	} else {	1216	} else {
782	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
783	}	1218	}
784		1219
785	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1224	} else {
787	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
788	}	1226	}
789	} else {	1227	} else {
790	aio_unlink $filename;	1228	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
792	}	1230	}
793	}	1231	};
794	}	1232	}
795		1233
796	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
798		1236
…		…
810	or return;	1248	or return;
811		1249
812	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
814	or return;	1252	or return;
		1253
815	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
816	}	1256	}
817		1257
		1258	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
820	return ($data, $av);	1262	($data, $av)
821	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
822		1270
823	#############################################################################	1271	#############################################################################
824	# command handling &c	1272	# command handling &c
825		1273
826	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1288	}
841		1289
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1291
844	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
845		1297
846	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
847	called.	1299	called.
848		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
849	=cut	1312	=cut
850		1313
851	sub register_extcmd {	1314	sub register_extcmd {
852	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
853		1316
854	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
855	}	1318	}
856		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
857	cf::player->attach (	1328	cf::player->attach (
858	on_command => sub {	1329	on_unknown_command => sub {
859	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
860		1331
861	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
862	or return;	1333	or return;
863		1334
…		…
868	cf::override;	1339	cf::override;
869	},	1340	},
870	on_extcmd => sub {	1341	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
872		1343
873	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1345
875	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
881	} else {	1361	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1363	}
884		1364
885	cf::override;	1365	cf::override;
886	},	1366	},
887	);	1367	);
888		1368
		1369	# "readahead" all extensions
889	sub load_extension {	1370	sub cache_extensions {
890	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
891		1372
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1375	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	}	1376	}
917	die $@;
918	}	1377	};
919		1378
920	push @EXTS, $pkg;	1379	$grp
921	}	1380	}
922		1381
923	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
924	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1387	next unless -r $path;
926	eval {	1388
927	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
928	1	1449	}
929	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
930	}	1460	};
931	}	1461	}
932		1462
933	#############################################################################	1463	#############################################################################
934		1464
		1465	=back
		1466
935	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
936		1468
937	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
938		1470
939	=cut	1471	=cut
940		1472
941	package cf::player;	1473	package cf::player;
942		1474
…		…
944		1476
945	=head3 cf::player	1477	=head3 cf::player
946		1478
947	=over 4	1479	=over 4
948		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
949	=item cf::player::find $login	1495	=item cf::player::find $login
950		1496
951	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
952		1498
953	=cut	1499	=cut
954		1500
955	sub playerdir($) {	1501	sub playerdir($) {
956	cf::localdir	1502	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1504	}
962		1505
963	sub path($) {	1506	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1517
975	sub exists($) {	1518	sub exists($) {
976	my ($login) = @_;	1519	my ($login) = @_;
977		1520
978	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1522	or !aio_stat path $login
980	}	1523	}
981		1524
982	sub find($) {	1525	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1527	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1537	aio_unlink +(playerdir $login) . "/$login.pl";
995		1538
996	my $pl = load_pl path $login	1539	my $f = new_from_file cf::object::thawer path $login
997	or return;	1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
998	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
999	}	1548	}
1000	}	1549	}
1001	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($pl, $path) = @_;
		1555
		1556	# restore slots saved in save, below
		1557	my $slots = delete $pl->{_slots};
		1558
		1559	$pl->ob->current_weapon ($slots->[0]);
		1560	$pl->combat_ob ($slots->[1]);
		1561	$pl->ranged_ob ($slots->[2]);
		1562	},
		1563	);
1002		1564
1003	sub save($) {	1565	sub save($) {
1004	my ($pl) = @_;	1566	my ($pl) = @_;
1005		1567
1006	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
1011	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
1012		1574
1013	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
1015		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
1016	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
1017	Coro::cede;	1584	cf::cede_to_tick;
1018	}	1585	}
1019		1586
1020	sub new($) {	1587	sub new($) {
1021	my ($login) = @_;	1588	my ($login) = @_;
1022		1589
…		…
1028	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
1029		1596
1030	$self	1597	$self
1031	}	1598	}
1032		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
1033	=item $pl->quit_character	1610	=item $pl->quit_character
1034		1611
1035	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1037		1614
…		…
1041	my ($pl) = @_;	1618	my ($pl) = @_;
1042		1619
1043	my $name = $pl->ob->name;	1620	my $name = $pl->ob->name;
1044		1621
1045	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1046	$pl->password ("*"); # this should lock out the player until we nuked the dir	1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1047		1624
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1052		1631
1053	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1663	while and may block, so not sync_job-capable, ever.
1085		1664
1086	=cut	1665	=cut
1087		1666
1088	sub list_logins {	1667	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1668	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1669	or return [];
1091		1670
1092	my @logins;	1671	my @logins;
1093		1672
1094	for my $login (@$dirs) {	1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1098		1683
1099	utf8::decode $login;	1684	utf8::decode $login;
1100	push @logins, $login;	1685	push @logins, $login;
1101	}	1686	}
1102		1687
…		…
1129	}	1714	}
1130		1715
1131	\@paths	1716	\@paths
1132	}	1717	}
1133		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1134	=item $player->ext_reply ($msgid, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1135		1724
1136	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1137		1726
1138	=cut	1727	=cut
1139		1728
1140	sub ext_reply($$%) {	1729	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1142		1731
1143	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1733	}
1147		1734
1148	=item $player->ext_event ($type, %msg)	1735	=item $player->ext_msg ($type, @msg)
1149		1736
1150	Sends an ext event to the client.	1737	Sends an ext event to the client.
1151		1738
1152	=cut	1739	=cut
1153		1740
1154	sub ext_event($$%) {	1741	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1742	my ($self, $type, @msg) = @_;
1156		1743
1157	$self->ns->ext_event ($type, %msg);	1744	$self->ns->ext_msg ($type, @msg);
1158	}	1745	}
1159		1746
1160	=head3 cf::region	1747	=head3 cf::region
1161		1748
1162	=over 4	1749	=over 4
…		…
1165		1752
1166	package cf::region;	1753	package cf::region;
1167		1754
1168	=item cf::region::find_by_path $path	1755	=item cf::region::find_by_path $path
1169		1756
1170	Tries to decuce the probable region for a map knowing only its path.	1757	Tries to decuce the likely region for a map knowing only its path.
1171		1758
1172	=cut	1759	=cut
1173		1760
1174	sub find_by_path($) {	1761	sub find_by_path($) {
1175	my ($path) = @_;	1762	my ($path) = @_;
1176		1763
1177	my ($match, $specificity);	1764	my ($match, $specificity);
1178		1765
1179	for my $region (list) {	1766	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1767	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1768	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1769	if $region->specificity > $specificity;
1183	}	1770	}
1184	}	1771	}
1185		1772
…		…
1206	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1208		1795
1209	sub generate_random_map {	1796	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
1211	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1802	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1216	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1217	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1249	my ($self, $merge) = @_;	1839	my ($self, $merge) = @_;
1250		1840
1251	# we have to keep some variables in memory intact	1841	# we have to keep some variables in memory intact
1252	local $self->{path};	1842	local $self->{path};
1253	local $self->{load_path};	1843	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1844
1257	$self->SUPER::thawer_merge ($merge);	1845	$self->SUPER::thawer_merge ($merge);
1258	}	1846	}
1259		1847
1260	sub normalise {	1848	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1308	return $self;	1896	return $self;
1309	}	1897	}
1310	}	1898	}
1311		1899
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1901	()
1314	}	1902	}
1315		1903
1316	sub init {	1904	sub init {
1317	my ($self) = @_;	1905	my ($self) = @_;
…		…
1332		1920
1333	# the original (read-only) location	1921	# the original (read-only) location
1334	sub load_path {	1922	sub load_path {
1335	my ($self) = @_;	1923	my ($self) = @_;
1336		1924
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1925	"$MAPDIR/$self->{path}.map"
1338	}	1926	}
1339		1927
1340	# the temporary/swap location	1928	# the temporary/swap location
1341	sub save_path {	1929	sub save_path {
1342	my ($self) = @_;	1930	my ($self) = @_;
1343		1931
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1933	"$TMPDIR/$path.map"
1346	}	1934	}
1347		1935
1348	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1349	sub uniq_path {	1937	sub uniq_path {
1350	my ($self) = @_;	1938	my ($self) = @_;
1351		1939
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1941	"$UNIQUEDIR/$path"
1354	}	1942	}
1355		1943
1356	# and all this just because we cannot iterate over	1944	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1945	my ($self) = @_;
1360		1946
1361	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1363	}	1950	}
1364		1951
1365	sub unlink_save {	1952	sub unlink_save {
1366	my ($self) = @_;	1953	my ($self) = @_;
1367		1954
…		…
1372		1959
1373	sub load_header_from($) {	1960	sub load_header_from($) {
1374	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1375		1962
1376	utf8::encode $path;	1963	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	1965	or return;
		1966
		1967	$self->_load_header ($f)
		1968	or return;
		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
1382		1972
1383	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1384		1974
1385	1	1975	1
1386	}	1976	}
…		…
1425	$self->load_header_orig	2015	$self->load_header_orig
1426	or return;	2016	or return;
1427	$self->prepare_orig;	2017	$self->prepare_orig;
1428	}	2018	}
1429		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
1430	$self->default_region (cf::region::find_by_path $self->{path})	2023	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	2024	unless $self->default_region;
1432		2025
1433	1	2026	1
1434	}	2027	}
…		…
1437	sub find {	2030	sub find {
1438	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1439		2032
1440	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1441		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1443		2037
1444	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1447	or return;	2040	or return;
1448		2041
1449	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1450		2043
1451	$map->load_header	2044	$map->load_header
1452	or return;	2045	or return;
1453		2046
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2048	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1457	$map->reset;	2052	$map->reset;
1458	undef $guard;
1459	return find $path;	2053	return find $path;
1460	}	2054	}
1461		2055
1462	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1463	}	2057	}
1464	}	2058	}
1465		2059
1466	sub pre_load { }	2060	sub pre_load { }
1467	sub post_load { }	2061	#sub post_load { } # XS
1468		2062
1469	sub load {	2063	sub load {
1470	my ($self) = @_;	2064	my ($self) = @_;
1471		2065
1472	local $self->{deny_reset} = 1; # loading can take a long time	2066	local $self->{deny_reset} = 1; # loading can take a long time
1473		2067
1474	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1476		2072
		2073	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2075
1479	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1480		2077
1481	$self->alloc;	2078	$self->alloc;
1482		2079
1483	$self->pre_load;	2080	$self->pre_load;
1484	Coro::cede;	2081	cf::cede_to_tick;
1485		2082
1486	$self->_load_objects ($self->{load_path}, 1)	2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1487	or return;	2086	or return;
1488		2087
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1490	if delete $self->{load_original};	2089	if delete $self->{load_original};
1491		2090
1492	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2092	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2095	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1497	}	2099	}
1498	}	2100	}
1499		2101
1500	Coro::cede;	2102	$f->resolve_delayed_derefs;
		2103
		2104	cf::cede_to_tick;
1501	# now do the right thing for maps	2105	# now do the right thing for maps
1502	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($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)	2107	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2108	unless $self->difficulty;
1513	Coro::cede;	2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
1514	$self->activate;	2116	$self->activate;
1515	Coro::cede;	2117	}
		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
		2122	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2123	}
1517		2124
1518	$self->post_load;	2125	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2126	}
1523		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
1524	sub customise_for {	2131	sub customise_for {
1525	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1526		2133
1527	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2135	if $self->per_player;
1529		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1530	$self	2140	$self
1531	}	2141	}
1532		2142
1533	# find and load all maps in the 3x3 area around a map	2143	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2144	sub load_neighbours {
1535	my ($map) = @_;	2145	my ($map) = @_;
1536		2146
1537	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1538		2148
1539	for (0 .. 3) {	2149	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1541	or next;	2151	or next;
1542	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1543	or next;	2153	or next;
1544	$neigh->load;	2154	$neigh->load;
1545		2155
		2156	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2159	}
1549		2160
1550	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1552	or next;	2164	or next;
1553	$neigh->load;	2165	$neigh->load;
1554	}	2166	}
1555	}	2167	}
1556		2168
…		…
1561	}	2173	}
1562		2174
1563	sub do_load_sync {	2175	sub do_load_sync {
1564	my ($map) = @_;	2176	my ($map) = @_;
1565		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1566	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1567	}	2182	}
1568		2183
1569	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2185	our $MAP_PREFETCHER = undef;
1571		2186
1572	sub find_async {	2187	sub find_async {
1573	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1574		2189
1575	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1576		2191
1577	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2194	}
1580		2195
1581	undef $MAP_PREFETCH{$path};	2196	$MAP_PREFETCH{$path} |= $load;
		2197
1582	$MAP_PREFETCHER ||= cf::async {	2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
1583	while (%MAP_PREFETCH) {	2201	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2202	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2203	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2204	$map->load if $v;
		2205	}
1588		2206
1589	delete $MAP_PREFETCH{$path};	2207	delete $MAP_PREFETCH{$k};
1590	}	2208	}
1591	}	2209	}
1592	undef $MAP_PREFETCHER;	2210	undef $MAP_PREFETCHER;
1593	};	2211	};
1594	$MAP_PREFETCHER->prio (6);	2212	$MAP_PREFETCHER->prio (6);
1595		2213
1596	()	2214	()
1597	}	2215	}
1598		2216
		2217	# common code, used by both ->save and ->swapout
1599	sub save {	2218	sub _save {
1600	my ($self) = @_;	2219	my ($self) = @_;
1601
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
1603		2220
1604	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1605		2222
1606	return unless $self->dirty;	2223	return unless $self->dirty;
1607		2224
…		…
1613	return if $self->{deny_save};	2230	return if $self->{deny_save};
1614		2231
1615	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1616		2233
1617	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1619	};	2237	};
		2238
		2239	cf::get_slot 0.02;
1620		2240
1621	if ($uniq) {	2241	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2244	} else {
1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1626	}	2246	}
1627	}	2247	}
1628		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
1629	sub swap_out {	2257	sub swap_out {
1630	my ($self) = @_;	2258	my ($self) = @_;
1631		2259
1632	# save first because save cedes
1633	$self->save;
1634
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
1637	return if $self->players;	2264	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
1639	return if $self->{deny_save};
1640		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
1641	$self->clear;	2275	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2276	}
1644		2277
1645	sub reset_at {	2278	sub reset_at {
1646	my ($self) = @_;	2279	my ($self) = @_;
1647		2280
1648	# TODO: safety, remove and allow resettable per-player maps	2281	# 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};	2282	return 1e99 if $self->{deny_reset};
1651		2283
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2286
…		…
1665	my ($self) = @_;	2297	my ($self) = @_;
1666		2298
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2300
1669	return if $self->players;	2301	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2302
1672	warn "resetting map ", $self->path;#d#	2303	warn "resetting map ", $self->path, "\n";
1673		2304
1674	$self->in_memory (cf::MAP_SWAPPED);	2305	$self->in_memory (cf::MAP_SWAPPED);
1675		2306
1676	# need to save uniques path	2307	# need to save uniques path
1677	unless ($self->{deny_save}) {	2308	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2312	if $uniq;
1682	}	2313	}
1683		2314
1684	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1685		2316
		2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2319	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2320
1690	$self->unlink_save;	2321	$self->unlink_save;
1691	$self->destroy;	2322	$self->destroy;
1692	}	2323	}
1693		2324
1694	my $nuke_counter = "aaaa";	2325	my $nuke_counter = "aaaa";
1695		2326
1696	sub nuke {	2327	sub nuke {
1697	my ($self) = @_;	2328	my ($self) = @_;
1698		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
1699	delete $cf::MAP{$self->path};	2333	delete $cf::MAP{$self->path};
1700		2334
1701	$self->unlink_save;	2335	$self->unlink_save;
1702		2336
1703	bless $self, "cf::map";	2337	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2338	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2339	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2340	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2342
1709	$cf::MAP{$self->path} = $self;	2343	$cf::MAP{$self->path} = $self;
		2344	}
1710		2345
1711	$self->reset; # polite request, might not happen	2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
1712	}	2383	}
1713		2384
1714	=item cf::map::unique_maps	2385	=item cf::map::unique_maps
1715		2386
1716	Returns an arrayref of paths of all shared maps that have	2387	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2388	instantiated unique items. May block.
1718		2389
1719	=cut	2390	=cut
1720		2391
1721	sub unique_maps() {	2392	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2393	[
1723	or return;	2394	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2395	utf8::decode $_;
1729	next if /\.pst$/;	2396	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2398	? ()
1732	push @paths, cf::map::normalise $_;	2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2401	]
1734
1735	\@paths
1736	}	2402	}
1737		2403
1738	package cf;	2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
		2425	s/\.map$// or next;
		2426	utf8::decode $_;
		2427	push @maps, "$dir/$_";
		2428	}
		2429
		2430	push @dirs, map "$dir/$_", @$dirs;
		2431	}
		2432
		2433	\@maps
		2434	}
1739		2435
1740	=back	2436	=back
1741		2437
1742	=head3 cf::object	2438	=head3 cf::object
1743		2439
…		…
1747		2443
1748	=over 4	2444	=over 4
1749		2445
1750	=item $ob->inv_recursive	2446	=item $ob->inv_recursive
1751		2447
1752	Returns the inventory of the object _and_ their inventories, recursively.	2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
1753		2450
1754	=cut	2451	=cut
1755		2452
1756	sub inv_recursive_;	2453	sub inv_recursive_;
1757	sub inv_recursive_ {	2454	sub inv_recursive_ {
…		…
1760		2457
1761	sub inv_recursive {	2458	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2459	inv_recursive_ inv $_[0]
1763	}	2460	}
1764		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
1765	package cf;	2490	package cf;
1766		2491
1767	=back	2492	=back
1768		2493
1769	=head3 cf::object::player	2494	=head3 cf::object::player
…		…
1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	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	2501	can be C<undef>. Does the right thing when the player is currently in a
1777	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
1778		2503
1779	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
1780		2519
1781	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2521	# with dialog boxes.
1783	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
1784	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
1786		2525
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2527
1789	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
1791	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
1794	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
1795	}	2553	}
1796		2554
1797	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
1798		2556
1799	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
1812		2570
1813	=item $player_object->enter_link	2571	=item $player_object->enter_link
1814		2572
1815	Freezes the player and moves him/her to a special map (C<{link}>).	2573	Freezes the player and moves him/her to a special map (C<{link}>).
1816		2574
1817	The player should be reasonably safe there for short amounts of time. You	2575	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.	2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
1819		2579
1820	Will never block.	2580	Will never block.
1821		2581
1822	=item $player_object->leave_link ($map, $x, $y)	2582	=item $player_object->leave_link ($map, $x, $y)
1823		2583
…		…
1846	$self->deactivate_recursive;	2606	$self->deactivate_recursive;
1847		2607
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2609
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2611	if $self->map && $self->map->{path} ne "{link}";
1852		2612
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1854	}	2614	}
1855		2615
1856	sub cf::object::player::leave_link {	2616	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2617	my ($self, $map, $x, $y) = @_;
		2618
		2619	return unless $self->contr->active;
1858		2620
1859	my $link_pos = delete $self->{_link_pos};	2621	my $link_pos = delete $self->{_link_pos};
1860		2622
1861	unless ($map) {	2623	unless ($map) {
1862	# restore original map position	2624	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2635	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2636	unless (defined $x) && (defined $y);
1875		2637
1876	# use -1 or undef as default coordinates, not 0, 0	2638	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2639	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2640	if $x <= 0 && $y <= 0;
1879		2641
1880	$map->load;	2642	$map->load;
1881	$map->load_diag;	2643	$map->load_neighbours;
1882		2644
1883	return unless $self->contr->active;	2645	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2646
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2648	$self->enter_map ($map, $x, $y);
1888	}
1889		2649
1890	cf::player->attach (	2650	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2651	$self->activate_recursive;
1892	my ($pl) = @_;	2652	}
1893		2653
1894	# abort map switching before logout	2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2655
1904	# try to abort aborted map switching on player login :)	2656	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2657	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2658	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2659	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2660	be called at the end of this process.
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		2661
1922	=item $player_object->goto ($path, $x, $y)	2662	Note that $check will be called with a potentially non-loaded map, so if
		2663	it needs a loaded map it has to call C<< ->load >>.
1923		2664
1924	=cut	2665	=cut
		2666
		2667	our $GOTOGEN;
1925		2668
1926	sub cf::object::player::goto {	2669	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2670	my ($self, $path, $x, $y, $check, $done) = @_;
		2671
		2672	# do generation counting so two concurrent goto's will be executed in-order
		2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2674
1929	$self->enter_link;	2675	$self->enter_link;
1930		2676
1931	(async {	2677	(async {
		2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
1932	my $map = eval {	2699	my $map = eval {
1933	my $map = cf::map::find $path;	2700	my $map = defined $path ? cf::map::find $path : undef;
		2701
		2702	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2703	$map = $map->customise_for ($self);
		2704	$map = $check->($map) if $check && $map;
		2705	} else {
		2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2707	}
		2708
1935	$map	2709	$map
		2710	};
		2711
		2712	if ($@) {
		2713	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2715	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2716
		2717	if ($gen == $self->{_goto_generation}) {
		2718	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2719	$self->leave_link ($map, $x, $y);
		2720	}
		2721
		2722	$done->() if $done;
1940	})->prio (1);	2723	})->prio (1);
1941	}	2724	}
1942		2725
1943	=item $player_object->enter_exit ($exit_object)	2726	=item $player_object->enter_exit ($exit_object)
1944		2727
…		…
1964	}	2747	}
1965		2748
1966	sub prepare_random_map {	2749	sub prepare_random_map {
1967	my ($exit) = @_;	2750	my ($exit) = @_;
1968		2751
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2752	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2753	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2754	# that depends on the exit object
1974		2755
1975	my $rmp = parse_random_map_params $exit->msg;	2756	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2758	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2759	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2760	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2761	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
1982	}	2765	}
1983		2766
1984	$rmp->{random_seed} ||= $exit->random_seed;	2767	$rmp->{random_seed} ||= $exit->random_seed;
1985		2768
1986	my $data = cf::to_json $rmp;	2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2770	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2771	my $meta = "$RANDOMDIR/$md5.meta";
1989		2772
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2774	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2775	undef $fh;
1993	aio_rename "$meta~", $meta;	2776	aio_rename "$meta~", $meta;
1994		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2781	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2782	$exit->msg (undef);
		2783	}
1997	}	2784	}
1998	}	2785	}
1999		2786
2000	sub cf::object::player::enter_exit {	2787	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2788	my ($self, $exit) = @_;
2002		2789
2003	return unless $self->type == cf::PLAYER;	2790	return unless $self->type == cf::PLAYER;
2004		2791
2005	if ($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;	2792	$self->enter_link;
2017		2793
2018	(async {	2794	(async {
2019	$self->deactivate_recursive; # just to be sure	2795	$Coro::current->{desc} = "enter_exit";
		2796
2020	unless (eval {	2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
		2804	prepare_random_map $exit
		2805	if $exit->slaying eq "/!";
		2806	}
		2807
		2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
		2811
2021	$self->goto ($slaying, $hp, $sp);	2812	$self->goto ($map, $x, $y);
2022		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
2023	1;	2818	1
2024	}) {	2819	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2820	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "I'll try to bring you back to the map you were before. "	2821	. "I'll try to bring you back to the map you were before. "
2027	. "Please report this to the dungeon master!",	2822	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2823	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2824
2030	warn "ERROR in enter_exit: $@";	2825	warn "ERROR in enter_exit: $@";
…		…
2049		2844
2050	utf8::encode $text;	2845	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2847	}
2053		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
2054	=item $client->ext_event ($type, %msg)	3036	=item $client->ext_msg ($type, @msg)
2055		3037
2056	Sends an exti event to the client.	3038	Sends an ext event to the client.
2057		3039
2058	=cut	3040	=cut
2059		3041
2060	sub cf::client::ext_event($$%) {	3042	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	3043	my ($self, $type, @msg) = @_;
2062		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	3048	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
2065	}	3069	}
2066		3070
2067	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
2068		3072
2069	Queues a query to the client, calling the given callback with	3073	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>,	3074	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>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		3076
2073	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	3078	become reliable at some point in the future.
2075		3079
2076	=cut	3080	=cut
2077		3081
2078	sub cf::client::query {	3082	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3091	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3093
2090	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
2092	}	3098	}
2093		3099
2094	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
2095	on_reply => sub {	3106	on_reply => sub {
2096	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
2097		3108
2098	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
2099	# get handled first	3110	# get handled first
…		…
2111	} else {	3122	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3124	}
2114	}	3125	}
2115	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
2116	);	3153	);
2117		3154
2118	=item $client->async (\&cb)	3155	=item $client->async (\&cb)
2119		3156
2120	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
…		…
2136		3173
2137	$coro	3174	$coro
2138	}	3175	}
2139		3176
2140	cf::client->attach (	3177	cf::client->attach (
2141	on_destroy => sub {	3178	on_client_destroy => sub {
2142	my ($ns) = @_;	3179	my ($ns) = @_;
2143		3180
2144	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2145	},	3182	},
2146	);	3183	);
…		…
2161	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
2163		3200
2164	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
2165		3202
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
2167		3208
2168	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
2169		3210
2170	=pod	3211	=pod
2171		3212
2172	The following functions and methods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
2173		3214
2174	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
2175	cf::object::player player	3220	cf::object::player
2176	cf::player peaceful	3221	player
2177	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
2178		3228
2179	=cut	3229	=cut
2180		3230
2181	for (	3231	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
2186	) {	3238	) {
2187	no strict 'refs';	3239	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2207		3259
2208	my $qcode = $code;	3260	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
2211		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
2212	local $_;	3267	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;
2214		3268
2215	my $eval =	3269	my $eval =
2216	"do {\n"	3270	"do {\n"
2217	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2218	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
2219	. $code	3273	. $code
2220	. "\n}"	3274	. "\n}"
2221	;	3275	;
2222		3276
		3277	if ($CFG{safe_eval}) {
2223	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
2224	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2225	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
2226		3286
2227	if ($@) {	3287	if ($@) {
2228	warn "$@";	3288	warn "$@";
2229	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
2230	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2249	=cut	3309	=cut
2250		3310
2251	sub register_script_function {	3311	sub register_script_function {
2252	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
2253		3313
2254	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
2255	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
2256	}	3316	}
2257		3317
2258	=back	3318	=back
2259		3319
2260	=cut	3320	=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		3321
2334	#############################################################################	3322	#############################################################################
2335	# the server's init and main functions	3323	# the server's init and main functions
2336		3324
2337	sub load_facedata($) {	3325	sub load_facedata($) {
2338	my ($path) = @_;	3326	my ($path) = @_;
		3327
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3333
2340	warn "loading facedata from $path\n";	3334	warn "loading facedata from $path\n";
2341		3335
2342	my $facedata;	3336	my $facedata;
2343	0 < aio_load $path, $facedata	3337	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3340	$facedata = Coro::Storable::thaw $facedata;
2347		3341
2348	$facedata->{version} == 2	3342	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3344
		3345	# patch in the exptable
		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3347	$facedata->{resource}{"res/exp_table"} = {
		3348	type => FT_RSRC,
		3349	data => $exp_table,
		3350	hash => (Digest::MD5::md5 $exp_table),
		3351	};
		3352	cf::cede_to_tick;
		3353
2351	{	3354	{
2352	my $faces = $facedata->{faceinfo};	3355	my $faces = $facedata->{faceinfo};
2353		3356
2354	while (my ($face, $info) = each %$faces) {	3357	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3359
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3360	cf::face::set_visibility $idx, $info->{visibility};
		3361	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3364
		3365	cf::cede_to_tick;
2360	}	3366	}
2361		3367
2362	while (my ($face, $info) = each %$faces) {	3368	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3369	next unless $info->{smooth};
		3370
2364	my $idx = cf::face::find $face	3371	my $idx = cf::face::find $face
2365	or next;	3372	or next;
		3373
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3377	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3379	}
2371	Coro::cede;	3380
		3381	cf::cede_to_tick;
2372	}	3382	}
2373	}	3383	}
2374		3384
2375	{	3385	{
2376	my $anims = $facedata->{animinfo};	3386	my $anims = $facedata->{animinfo};
2377		3387
2378	while (my ($anim, $info) = each %$anims) {	3388	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3390	cf::cede_to_tick;
2381	}	3391	}
2382		3392
2383	cf::anim::invalidate_all; # d'oh	3393	cf::anim::invalidate_all; # d'oh
2384	}	3394	}
2385		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
2386	1	3415	1
2387	}	3416	}
2388		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
		3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
		3461	load_resource_file "$MAPDIR/regions"
		3462	or die "unable to load regions file\n";
		3463
		3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
		3468	}
		3469
2389	sub reload_facedata {	3470	sub reload_facedata {
2390	load_facedata sprintf "%s/facedata", cf::datadir	3471	load_facedata "$DATADIR/facedata"
2391	or die "unable to load facedata\n";	3472	or die "unable to load facedata\n";
2392	}	3473	}
2393		3474
2394	sub reload_regions {
2395	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2396	or die "unable to load regions file\n";
2397	}
2398
2399	sub reload_archetypes {	3475	sub reload_archetypes {
2400	load_archetype_file sprintf "%s/archetypes", cf::datadir	3476	load_resource_file "$DATADIR/archetypes"
2401	or die "unable to load archetypes\n";	3477	or die "unable to load archetypes\n";
2402	}	3478	}
2403		3479
2404	sub reload_treasures {	3480	sub reload_treasures {
2405	load_treasure_file sprintf "%s/treasures", cf::datadir	3481	load_resource_file "$DATADIR/treasures"
2406	or die "unable to load treasurelists\n";	3482	or die "unable to load treasurelists\n";
2407	}	3483	}
2408		3484
2409	sub reload_resources {	3485	sub reload_resources {
2410	warn "reloading resource files...\n";	3486	warn "reloading resource files...\n";
2411		3487
2412	reload_regions;
2413	reload_facedata;	3488	reload_facedata;
2414	reload_archetypes;	3489	reload_archetypes;
		3490	reload_regions;
2415	reload_treasures;	3491	reload_treasures;
2416		3492
2417	warn "finished reloading resource files\n";	3493	warn "finished reloading resource files\n";
2418	}	3494	}
2419		3495
2420	sub init {	3496	sub reload_config {
2421	reload_resources;	3497	warn "reloading config file...\n";
2422	}
2423		3498
2424	sub cfg_load {
2425	open my $fh, "<:utf8", cf::confdir . "/config"	3499	open my $fh, "<:utf8", "$CONFDIR/config"
2426	or return;	3500	or return;
2427		3501
2428	local $/;	3502	local $/;
2429	*CFG = YAML::Syck::Load <$fh>;	3503	*CFG = YAML::XS::Load scalar <$fh>;
2430		3504
2431	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2432		3506
2433	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2434	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2438	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2439	and die "WARNING: m(un)lockall failed: $!\n";	3513	and die "WARNING: m(un)lockall failed: $!\n";
2440	};	3514	};
2441	warn $@ if $@;	3515	warn $@ if $@;
2442	}	3516	}
		3517
		3518	warn "finished reloading resource files\n";
		3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
2443	}	3547	}
2444		3548
2445	sub main {	3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
2446	# we must not ever block the main coroutine	3559	# we must not ever block the main coroutine
2447	local $Coro::idle = sub {	3560	local $Coro::idle = sub {
2448	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2449	(async {	3562	(async {
2450	Event::one_event;	3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
2451	})->prio (Coro::PRIO_MAX);	3565	})->prio (Coro::PRIO_MAX);
2452	};	3566	};
2453		3567
2454	cfg_load;	3568	evthread_start IO::AIO::poll_fileno;
		3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
2455	db_init;	3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
2456	load_extensions;	3591	load_extensions;
2457		3592
2458	$TICK_WATCHER->start;	3593	utime time, time, $RUNTIMEFILE;
2459	Event::loop;	3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
2460	}	3606	}
2461		3607
2462	#############################################################################	3608	#############################################################################
2463	# initialisation and cleanup	3609	# initialisation and cleanup
2464		3610
2465	# install some emergency cleanup handlers	3611	# install some emergency cleanup handlers
2466	BEGIN {	3612	BEGIN {
		3613	our %SIGWATCHER = ();
2467	for my $signal (qw(INT HUP TERM)) {	3614	for my $signal (qw(INT HUP TERM)) {
2468	Event->signal (	3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2469	reentrant => 0,
2470	data => WF_AUTOCANCEL,
2471	signal => $signal,
2472	prio => 0,
2473	cb => sub {
2474	cf::cleanup "SIG$signal";	3616	cf::cleanup "SIG$signal";
2475	},
2476	);	3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3632	or return;
		3633
		3634	my $value = $cf::RUNTIME + 90 + 10;
		3635	# 10 is the runtime save interval, for a monotonic clock
		3636	# 60 allows for the watchdog to kill the server.
		3637
		3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3639	and return;
		3640
		3641	# always fsync - this file is important
		3642	aio_fsync $fh
		3643	and return;
		3644
		3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
2477	}	3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
2478	}	3707	}
2479		3708
2480	sub emergency_save() {	3709	sub emergency_save() {
2481	my $freeze_guard = cf::freeze_mainloop;	3710	my $freeze_guard = cf::freeze_mainloop;
2482		3711
2483	warn "enter emergency perl save\n";	3712	warn "emergency_perl_save: enter\n";
2484		3713
2485	cf::sync_job {	3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
2486	# use a peculiar iteration method to avoid tripping on perl	3720	# use a peculiar iteration method to avoid tripping on perl
2487	# refcount bugs in for. also avoids problems with players	3721	# refcount bugs in for. also avoids problems with players
2488	# and maps saved/destroyed asynchronously.	3722	# and maps saved/destroyed asynchronously.
2489	warn "begin emergency player save\n";	3723	warn "emergency_perl_save: begin player save\n";
2490	for my $login (keys %cf::PLAYER) {	3724	for my $login (keys %cf::PLAYER) {
2491	my $pl = $cf::PLAYER{$login} or next;	3725	my $pl = $cf::PLAYER{$login} or next;
2492	$pl->valid or next;	3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2493	$pl->save;	3728	$pl->save;
2494	}	3729	}
2495	warn "end emergency player save\n";	3730	warn "emergency_perl_save: end player save\n";
2496		3731
2497	warn "begin emergency map save\n";	3732	warn "emergency_perl_save: begin map save\n";
2498	for my $path (keys %cf::MAP) {	3733	for my $path (keys %cf::MAP) {
2499	my $map = $cf::MAP{$path} or next;	3734	my $map = $cf::MAP{$path} or next;
2500	$map->valid or next;	3735	$map->valid or next;
2501	$map->save;	3736	$map->save;
2502	}	3737	}
2503	warn "end emergency map save\n";	3738	warn "emergency_perl_save: end map save\n";
2504		3739
2505	warn "begin emergency database checkpoint\n";	3740	warn "emergency_perl_save: begin database checkpoint\n";
2506	BDB::db_env_txn_checkpoint $DB_ENV;	3741	BDB::db_env_txn_checkpoint $DB_ENV;
2507	warn "end emergency database checkpoint\n";	3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
2508	};	3747	};
2509		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
2510	warn "leave emergency perl save\n";	3754	warn "emergency_perl_save: leave\n";
2511	}	3755	}
2512		3756
2513	sub post_cleanup {	3757	sub post_cleanup {
2514	my ($make_core) = @_;	3758	my ($make_core) = @_;
2515		3759
2516	warn Carp::longmess "post_cleanup backtrace"	3760	warn Carp::longmess "post_cleanup backtrace"
2517	if $make_core;	3761	if $make_core;
		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
2518	}	3790	}
2519		3791
2520	sub do_reload_perl() {	3792	sub do_reload_perl() {
2521	# can/must only be called in main	3793	# can/must only be called in main
2522	if ($Coro::current != $Coro::main) {	3794	if ($Coro::current != $Coro::main) {
2523	warn "can only reload from main coroutine";	3795	warn "can only reload from main coroutine";
2524	return;	3796	return;
2525	}	3797	}
2526		3798
		3799	return if $RELOAD++;
		3800
		3801	my $t1 = AE::time;
		3802
		3803	while ($RELOAD) {
2527	warn "reloading...";	3804	warn "reloading...";
2528		3805
2529	warn "entering sync_job";	3806	warn "entering sync_job";
2530		3807
2531	cf::sync_job {	3808	cf::sync_job {
2532	cf::write_runtime; # external watchdog should not bark	3809	cf::write_runtime_sync; # external watchdog should not bark
2533	cf::emergency_save;	3810	cf::emergency_save;
2534	cf::write_runtime; # external watchdog should not bark	3811	cf::write_runtime_sync; # external watchdog should not bark
2535		3812
2536	warn "syncing database to disk";	3813	warn "syncing database to disk";
2537	BDB::db_env_txn_checkpoint $DB_ENV;	3814	BDB::db_env_txn_checkpoint $DB_ENV;
2538		3815
2539	# if anything goes wrong in here, we should simply crash as we already saved	3816	# if anything goes wrong in here, we should simply crash as we already saved
2540		3817
2541	warn "cancelling all WF_AUTOCANCEL watchers";
2542	for (Event::all_watchers) {
2543	$_->cancel if $_->data & WF_AUTOCANCEL;
2544	}
2545
2546	warn "flushing outstanding aio requests";	3818	warn "flushing outstanding aio requests";
2547	for (;;) {
2548	BDB::flush;
2549	IO::AIO::flush;
2550	Coro::cede;
2551	last unless IO::AIO::nreqs || BDB::nreqs;	3819	while (IO::AIO::nreqs || BDB::nreqs) {
2552	warn "iterate...";	3820	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2553	}
2554
2555	++$RELOAD;
2556
2557	warn "cancelling all extension coros";
2558	$_->cancel for values %EXT_CORO;
2559	%EXT_CORO = ();
2560
2561	warn "removing commands";
2562	%COMMAND = ();
2563
2564	warn "removing ext commands";
2565	%EXTCMD = ();
2566
2567	warn "unloading/nuking all extensions";
2568	for my $pkg (@EXTS) {
2569	warn "... unloading $pkg";
2570
2571	if (my $cb = $pkg->can ("unload")) {
2572	eval {
2573	$cb->($pkg);
2574	1
2575	} or warn "$pkg unloaded, but with errors: $@";
2576	}	3821	}
2577		3822
2578	warn "... nuking $pkg";	3823	warn "cancelling all extension coros";
2579	Symbol::delete_package $pkg;	3824	$_->cancel for values %EXT_CORO;
2580	}	3825	%EXT_CORO = ();
2581		3826
2582	warn "unloading all perl modules loaded from $LIBDIR";	3827	warn "removing commands";
2583	while (my ($k, $v) = each %INC) {	3828	%COMMAND = ();
2584	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2585		3829
		3830	warn "removing ext/exti commands";
		3831	%EXTCMD = ();
		3832	%EXTICMD = ();
		3833
		3834	warn "unloading/nuking all extensions";
		3835	for my $pkg (@EXTS) {
2586	warn "... unloading $k";	3836	warn "... unloading $pkg";
2587	delete $INC{$k};
2588		3837
2589	$k =~ s/\.pm$//;
2590	$k =~ s/\//::/g;
2591
2592	if (my $cb = $k->can ("unload_module")) {	3838	if (my $cb = $pkg->can ("unload")) {
		3839	eval {
2593	$cb->();	3840	$cb->($pkg);
		3841	1
		3842	} or warn "$pkg unloaded, but with errors: $@";
		3843	}
		3844
		3845	warn "... clearing $pkg";
		3846	clear_package $pkg;
2594	}	3847	}
2595		3848
2596	Symbol::delete_package $k;	3849	warn "unloading all perl modules loaded from $LIBDIR";
		3850	while (my ($k, $v) = each %INC) {
		3851	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3852
		3853	warn "... unloading $k";
		3854	delete $INC{$k};
		3855
		3856	$k =~ s/\.pm$//;
		3857	$k =~ s/\//::/g;
		3858
		3859	if (my $cb = $k->can ("unload_module")) {
		3860	$cb->();
		3861	}
		3862
		3863	clear_package $k;
2597	}	3864	}
2598		3865
2599	warn "getting rid of safe::, as good as possible";	3866	warn "getting rid of safe::, as good as possible";
2600	Symbol::delete_package "safe::$_"	3867	clear_package "safe::$_"
2601	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3868	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2602		3869
2603	warn "unloading cf.pm \"a bit\"";	3870	warn "unloading cf.pm \"a bit\"";
2604	delete $INC{"cf.pm"};	3871	delete $INC{"cf.pm"};
		3872	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2605		3873
2606	# don't, removes xs symbols, too,	3874	# don't, removes xs symbols, too,
2607	# and global variables created in xs	3875	# and global variables created in xs
2608	#Symbol::delete_package __PACKAGE__;	3876	#clear_package __PACKAGE__;
2609		3877
2610	warn "unload completed, starting to reload now";	3878	warn "unload completed, starting to reload now";
2611		3879
2612	warn "reloading cf.pm";	3880	warn "reloading cf.pm";
2613	require cf;	3881	require cf;
2614	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3882	cf::_connect_to_perl_1;
2615		3883
2616	warn "loading config and database again";	3884	warn "loading config and database again";
2617	cf::cfg_load;	3885	cf::reload_config;
2618		3886
2619	warn "loading extensions";	3887	warn "loading extensions";
2620	cf::load_extensions;	3888	cf::load_extensions;
2621		3889
		3890	if ($REATTACH_ON_RELOAD) {
2622	warn "reattaching attachments to objects/players";	3891	warn "reattaching attachments to objects/players";
2623	_global_reattach; # objects, sockets	3892	_global_reattach; # objects, sockets
2624	warn "reattaching attachments to maps";	3893	warn "reattaching attachments to maps";
2625	reattach $_ for values %MAP;	3894	reattach $_ for values %MAP;
2626	warn "reattaching attachments to players";	3895	warn "reattaching attachments to players";
2627	reattach $_ for values %PLAYER;	3896	reattach $_ for values %PLAYER;
		3897	}
2628		3898
		3899	warn "running post_init jobs";
		3900	(pop @POST_INIT)->(1) while @POST_INIT;
		3901
2629	warn "leaving sync_job";	3902	warn "leaving sync_job";
2630		3903
2631	1	3904	1
2632	} or do {	3905	} or do {
2633	warn $@;	3906	warn $@;
2634	warn "error while reloading, exiting.";	3907	cf::cleanup "error while reloading, exiting.";
2635	exit 1;
2636	};	3908	};
2637		3909
2638	warn "reloaded";	3910	warn "reloaded";
		3911	--$RELOAD;
		3912	}
		3913
		3914	$t1 = AE::time - $t1;
		3915	warn "reload completed in ${t1}s\n";
2639	};	3916	};
2640		3917
2641	our $RELOAD_WATCHER; # used only during reload	3918	our $RELOAD_WATCHER; # used only during reload
2642		3919
2643	sub reload_perl() {	3920	sub reload_perl() {
2644	# doing reload synchronously and two reloads happen back-to-back,	3921	# doing reload synchronously and two reloads happen back-to-back,
2645	# coro crashes during coro_state_free->destroy here.	3922	# coro crashes during coro_state_free->destroy here.
2646		3923
2647	$RELOAD_WATCHER ||= Event->timer (	3924	$RELOAD_WATCHER ||= cf::async {
2648	reentrant => 0,	3925	Coro::AIO::aio_wait cache_extensions;
2649	after => 0,	3926
2650	data => WF_AUTOCANCEL,	3927	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2651	cb => sub {
2652	do_reload_perl;	3928	do_reload_perl;
2653	undef $RELOAD_WATCHER;	3929	undef $RELOAD_WATCHER;
2654	},	3930	};
2655	);	3931	};
2656	}	3932	}
2657		3933
2658	register_command "reload" => sub {	3934	register_command "reload" => sub {
2659	my ($who, $arg) = @_;	3935	my ($who, $arg) = @_;
2660		3936
2661	if ($who->flag (FLAG_WIZ)) {	3937	if ($who->flag (FLAG_WIZ)) {
2662	$who->message ("reloading server.");	3938	$who->message ("reloading server.");
		3939	async {
		3940	$Coro::current->{desc} = "perl_reload";
2663	async { reload_perl };	3941	reload_perl;
		3942	};
2664	}	3943	}
2665	};	3944	};
2666		3945
2667	unshift @INC, $LIBDIR;	3946	unshift @INC, $LIBDIR;
2668		3947
…		…
2670		3949
2671	our @WAIT_FOR_TICK;	3950	our @WAIT_FOR_TICK;
2672	our @WAIT_FOR_TICK_BEGIN;	3951	our @WAIT_FOR_TICK_BEGIN;
2673		3952
2674	sub wait_for_tick {	3953	sub wait_for_tick {
2675	return unless $TICK_WATCHER->is_active;
2676	return if $Coro::current == $Coro::main;	3954	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2677		3955
2678	my $signal = new Coro::Signal;	3956	my $signal = new Coro::Signal;
2679	push @WAIT_FOR_TICK, $signal;	3957	push @WAIT_FOR_TICK, $signal;
2680	$signal->wait;	3958	$signal->wait;
2681	}	3959	}
2682		3960
2683	sub wait_for_tick_begin {	3961	sub wait_for_tick_begin {
2684	return unless $TICK_WATCHER->is_active;
2685	return if $Coro::current == $Coro::main;	3962	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2686		3963
2687	my $signal = new Coro::Signal;	3964	my $signal = new Coro::Signal;
2688	push @WAIT_FOR_TICK_BEGIN, $signal;	3965	push @WAIT_FOR_TICK_BEGIN, $signal;
2689	$signal->wait;	3966	$signal->wait;
2690	}	3967	}
2691		3968
2692	$TICK_WATCHER = Event->timer (	3969	sub tick {
2693	reentrant => 0,
2694	parked => 1,
2695	prio => 0,
2696	at => $NEXT_TICK || $TICK,
2697	data => WF_AUTOCANCEL,
2698	cb => sub {
2699	if ($Coro::current != $Coro::main) {	3970	if ($Coro::current != $Coro::main) {
2700	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3971	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2701	unless ++$bug_warning > 10;	3972	unless ++$bug_warning > 10;
2702	return;	3973	return;
2703	}	3974	}
2704		3975
2705	$NOW = Event::time;
2706
2707	cf::server_tick; # one server iteration	3976	cf::server_tick; # one server iteration
2708		3977
2709	$RUNTIME += $TICK;	3978	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2710	$NEXT_TICK += $TICK;
2711		3979
2712	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3980	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2713	$NEXT_RUNTIME_WRITE = $NOW + 10;	3981	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2714	Coro::async_pool {	3982	Coro::async_pool {
		3983	$Coro::current->{desc} = "runtime saver";
2715	write_runtime	3984	write_runtime_sync
2716	or warn "ERROR: unable to write runtime file: $!";	3985	or warn "ERROR: unable to write runtime file: $!";
2717	};
2718	}	3986	};
		3987	}
2719		3988
2720	# my $AFTER = Event::time;
2721	# warn $AFTER - $NOW;#d#
2722
2723	# if we are delayed by four ticks or more, skip them all
2724	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2725
2726	$TICK_WATCHER->at ($NEXT_TICK);
2727	$TICK_WATCHER->start;
2728
2729	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3989	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2730	$sig->send;	3990	$sig->send;
2731	}	3991	}
2732	while (my $sig = shift @WAIT_FOR_TICK) {	3992	while (my $sig = shift @WAIT_FOR_TICK) {
2733	$sig->send;	3993	$sig->send;
2734	}
2735
2736	_post_tick;
2737	},	3994	}
2738	);	3995
		3996	$LOAD = ($NOW - $TICK_START) / $TICK;
		3997	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3998
		3999	if (0) {
		4000	if ($NEXT_TICK) {
		4001	my $jitter = $TICK_START - $NEXT_TICK;
		4002	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4003	warn "jitter $JITTER\n";#d#
		4004	}
		4005	}
		4006	}
2739		4007
2740	{	4008	{
2741	BDB::max_poll_time $TICK * 0.1;	4009	# configure BDB
2742	$BDB_POLL_WATCHER = Event->io (	4010
2743	reentrant => 0,
2744	fd => BDB::poll_fileno,
2745	poll => 'r',
2746	prio => 0,
2747	data => WF_AUTOCANCEL,
2748	cb => \&BDB::poll_cb,
2749	);
2750	BDB::min_parallel 8;	4011	BDB::min_parallel 16;
2751		4012	BDB::max_poll_reqs $TICK * 0.1;
2752	BDB::set_sync_prepare {	4013	$AnyEvent::BDB::WATCHER->priority (1);
2753	my $status;
2754	my $current = $Coro::current;
2755	(
2756	sub {
2757	$status = $!;
2758	$current->ready; undef $current;
2759	},
2760	sub {
2761	Coro::schedule while defined $current;
2762	$! = $status;
2763	},
2764	)
2765	};
2766		4014
2767	unless ($DB_ENV) {	4015	unless ($DB_ENV) {
2768	$DB_ENV = BDB::db_env_create;	4016	$DB_ENV = BDB::db_env_create;
		4017	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4018	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4019	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4020	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4021	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2769		4022
2770	cf::sync_job {	4023	cf::sync_job {
2771	eval {	4024	eval {
2772	BDB::db_env_open	4025	BDB::db_env_open
2773	$DB_ENV,	4026	$DB_ENV,
2774	$BDB_ENV_DIR,	4027	$BDBDIR,
2775	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2776	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2777	0666;	4030	0666;
2778		4031
2779	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2780
2781	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2782	$DB_ENV->set_lk_detect;
2783	};	4033	};
2784		4034
2785	cf::cleanup "db_env_open(db): $@" if $@;	4035	cf::cleanup "db_env_open(db): $@" if $@;
2786	};	4036	};
2787	}	4037	}
		4038
		4039	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4040	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4041	};
		4042	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4043	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4044	};
		4045	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4046	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4047	};
2788	}	4048	}
2789		4049
2790	{	4050	{
		4051	# configure IO::AIO
		4052
2791	IO::AIO::min_parallel 8;	4053	IO::AIO::min_parallel 8;
2792
2793	undef $Coro::AIO::WATCHER;
2794	IO::AIO::max_poll_time $TICK * 0.1;	4054	IO::AIO::max_poll_time $TICK * 0.1;
2795	$AIO_POLL_WATCHER = Event->io (	4055	undef $AnyEvent::AIO::WATCHER;
2796	reentrant => 0,
2797	data => WF_AUTOCANCEL,
2798	fd => IO::AIO::poll_fileno,
2799	poll => 'r',
2800	prio => 6,
2801	cb => \&IO::AIO::poll_cb,
2802	);
2803	}	4056	}
		4057
		4058	my $_log_backtrace;
		4059
		4060	sub _log_backtrace {
		4061	my ($msg, @addr) = @_;
		4062
		4063	$msg =~ s/\n//;
		4064
		4065	# limit the # of concurrent backtraces
		4066	if ($_log_backtrace < 2) {
		4067	++$_log_backtrace;
		4068	my $perl_bt = Carp::longmess $msg;
		4069	async {
		4070	$Coro::current->{desc} = "abt $msg";
		4071
		4072	my @bt = fork_call {
		4073	@addr = map { sprintf "%x", $_ } @addr;
		4074	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4075	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4076	or die "addr2line: $!";
		4077
		4078	my @funcs;
		4079	my @res = <$fh>;
		4080	chomp for @res;
		4081	while (@res) {
		4082	my ($func, $line) = splice @res, 0, 2, ();
		4083	push @funcs, "[$func] $line";
		4084	}
		4085
		4086	@funcs
		4087	};
		4088
		4089	LOG llevInfo, "[ABT] $perl_bt\n";
		4090	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4091	LOG llevInfo, "[ABT] $_\n" for @bt;
		4092	--$_log_backtrace;
		4093	};
		4094	} else {
		4095	LOG llevInfo, "[ABT] $msg\n";
		4096	LOG llevInfo, "[ABT] [suppressed]\n";
		4097	}
		4098	}
		4099
		4100	# load additional modules
		4101	require "cf/$_.pm" for @EXTRA_MODULES;
		4102	cf::_connect_to_perl_2;
2804		4103
2805	END { cf::emergency_save }	4104	END { cf::emergency_save }
2806		4105
2807	1	4106	1
2808		4107

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