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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.458 by root, Sat Dec 13 20:34:37 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::AnyEvent;
18	use Coro::AIO;	47	use Coro::AIO;
		48	use Coro::BDB 1.6;
		49	use Coro::Storable;
		50	use Coro::Util ();
19		51
		52	use JSON::XS 2.01 ();
		53	use BDB ();
		54	use Data::Dumper;
		55	use Digest::MD5;
20	use Fcntl;	56	use Fcntl;
		57	use YAML ();
21	use IO::AIO 2.31 ();	58	use IO::AIO ();
22	use YAML::Syck ();
23	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
24		62
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
26		64
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
28	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29		69
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
31		75
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	76	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		77
34	our %COMMAND = ();	78	our %COMMAND = ();
35	our %COMMAND_TIME = ();	79	our %COMMAND_TIME = ();
		80
		81	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	82	our %EXTCMD = ();
		83	our %EXTICMD = ();
		84	our %EXT_CORO = (); # coroutines bound to extensions
		85	our %EXT_MAP = (); # pluggable maps
37		86
		87	our $RELOAD; # number of reloads so far, non-zero while in reload
38	our @EVENT;	88	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		89
41	our $TICK = MAX_TIME * 1e-6;	90	our $CONFDIR = confdir;
42	our $TICK_WATCHER;	91	our $DATADIR = datadir;
		92	our $LIBDIR = "$DATADIR/ext";
		93	our $PODDIR = "$DATADIR/pod";
		94	our $MAPDIR = "$DATADIR/" . mapdir;
		95	our $LOCALDIR = localdir;
		96	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		97	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		98	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		99	our $RANDOMDIR = "$LOCALDIR/random";
		100	our $BDBDIR = "$LOCALDIR/db";
		101	our $PIDFILE = "$LOCALDIR/pid";
		102	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		103
		104	our %RESOURCE;
		105
		106	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		107	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	108	our $NEXT_TICK;
44	our $NOW;	109	our $USE_FSYNC = 1; # use fsync to write maps - default off
		110
		111	our $BDB_DEADLOCK_WATCHER;
		112	our $BDB_CHECKPOINT_WATCHER;
		113	our $BDB_TRICKLE_WATCHER;
		114	our $DB_ENV;
45		115
46	our %CFG;	116	our %CFG;
47		117
48	our $UPTIME; $UPTIME ||= time;	118	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	119	our $RUNTIME;
		120	our $NOW;
50		121
51	our %MAP; # all maps	122	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	123	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	124	our $LINK_MAP; # the special {link} map, which is always available
		125
		126	# used to convert map paths into valid unix filenames by replacing / by ∕
		127	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		128
		129	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		130	our $LOADAVG; # same thing, but with alpha-smoothing
		131	our $JITTER; # average jitter
		132	our $TICK_START; # for load detecting purposes
		133
		134	our @POST_INIT;
		135
		136	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
54		137
55	binmode STDOUT;	138	binmode STDOUT;
56	binmode STDERR;	139	binmode STDERR;
57		140
58	# read virtual server time, if available	141	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	142	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	143	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	144	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	145	$RUNTIME = <$fh> + 0.;
63	}	146	}
64		147
65	mkdir cf::localdir;	148	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	149	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		150
70	our %EXT_CORO;	151	our $EMERGENCY_POSITION;
		152
		153	sub cf::map::normalise;
71		154
72	#############################################################################	155	#############################################################################
73		156
74	=head2 GLOBAL VARIABLES	157	=head2 GLOBAL VARIABLES
75		158
…		…
82	=item $cf::RUNTIME	165	=item $cf::RUNTIME
83		166
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	167	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	168	every server tick.
86		169
87	=item $cf::LIBDIR	170	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		171	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		172	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		173
89	The perl library directory, where extensions and cf-specific modules can	174	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	175	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		176	unique-items directory, player file directory, random maps directory and
		177	database environment.
91		178
92	=item $cf::NOW	179	=item $cf::NOW
93		180
94	The time of the last (current) server tick.	181	The time of the last (current) server tick.
95		182
96	=item $cf::TICK	183	=item $cf::TICK
97		184
98	The interval between server ticks, in seconds.	185	The interval between server ticks, in seconds.
99		186
		187	=item $cf::LOADAVG
		188
		189	The current CPU load on the server (alpha-smoothed), as a value between 0
		190	(none) and 1 (overloaded), indicating how much time is spent on processing
		191	objects per tick. Healthy values are < 0.5.
		192
		193	=item $cf::LOAD
		194
		195	The raw value load value from the last tick.
		196
100	=item %cf::CFG	197	=item %cf::CFG
101		198
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	199	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	200	from wherever your confdir points to.
		201
		202	=item cf::wait_for_tick, cf::wait_for_tick_begin
		203
		204	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		205	returns directly I<after> the tick processing (and consequently, can only wake one process
		206	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		207
		208	=item @cf::INVOKE_RESULTS
		209
		210	This array contains the results of the last C<invoke ()> call. When
		211	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		212	that call.
104		213
105	=back	214	=back
106		215
107	=cut	216	=cut
108		217
109	BEGIN {	218	BEGIN {
110	*CORE::GLOBAL::warn = sub {	219	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	220	my $msg = join "", @_;
112	utf8::encode $msg;
113		221
114	$msg .= "\n"	222	$msg .= "\n"
115	unless $msg =~ /\n$/;	223	unless $msg =~ /\n$/;
116		224
		225	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		226
117	LOG llevError, "cfperl: $msg";	227	LOG llevError, $msg;
118	};	228	};
119	}	229	}
		230
		231	$Coro::State::DIEHOOK = sub {
		232	return unless $^S eq 0; # "eq", not "=="
		233
		234	if ($Coro::current == $Coro::main) {#d#
		235	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		236	return;#d#
		237	}#d#
		238
		239	# kill coroutine otherwise
		240	warn Carp::longmess $_[0];
		241	Coro::terminate
		242	};
		243
		244	$SIG{__DIE__} = sub { }; #d#?
120		245
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	246	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	247	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	248	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	249	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	250	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		251	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	252	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		253
128	# we bless all objects into (empty) derived classes to force a method lookup	254	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	255	# within the Safe compartment.
130	for my $pkg (qw(	256	for my $pkg (qw(
131	cf::global cf::attachable	257	cf::global cf::attachable
132	cf::object cf::object::player	258	cf::object cf::object::player
133	cf::client cf::player	259	cf::client cf::player
134	cf::arch cf::living	260	cf::arch cf::living
		261	cf::map cf::mapspace
135	cf::map cf::party cf::region	262	cf::party cf::region
136	)) {	263	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	264	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	265	}
140		266
141	$Event::DIED = sub {	267	$EV::DIED = sub {
142	warn "error in event callback: @_";	268	warn "error in event callback: @_";
143	};	269	};
144		270
145	my %ext_pkg;	271	#############################################################################
146	my @exts;
147	my @hook;
148		272
149	=head2 UTILITY FUNCTIONS	273	=head2 UTILITY FUNCTIONS
150		274
151	=over 4	275	=over 4
152		276
153	=cut	277	=item dumpval $ref
154		278
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	279	=cut
156		280
		281	sub dumpval {
		282	eval {
		283	local $SIG{__DIE__};
		284	my $d;
		285	if (1) {
		286	$d = new Data::Dumper([$_[0]], ["*var"]);
		287	$d->Terse(1);
		288	$d->Indent(2);
		289	$d->Quotekeys(0);
		290	$d->Useqq(1);
		291	#$d->Bless(...);
		292	$d->Seen($_[1]) if @_ > 1;
		293	$d = $d->Dump();
		294	}
		295	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		296	$d
		297	} || "[unable to dump $_[0]: '$@']";
		298	}
		299
157	=item $ref = cf::from_json $json	300	=item $ref = cf::decode_json $json
158		301
159	Converts a JSON string into the corresponding perl data structure.	302	Converts a JSON string into the corresponding perl data structure.
160		303
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	304	=item $json = cf::encode_json $ref
169		305
170	Converts a perl data structure into its JSON representation.	306	Converts a perl data structure into its JSON representation.
171		307
172	=cut	308	=cut
173		309
174	sub to_json($) {	310	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		311
179	# main coro must never ever "block" except in Event	312	sub encode_json($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	313	sub decode_json($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	314
		315	=item cf::post_init { BLOCK }
		316
		317	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		318	but I<before> the server starts ticking again.
		319
		320	The cdoeblock will have a single boolean argument to indicate whether this
		321	is a reload or not.
		322
		323	=cut
		324
		325	sub post_init(&) {
		326	push @POST_INIT, shift;
		327	}
		328
		329	=item cf::lock_wait $string
		330
		331	Wait until the given lock is available. See cf::lock_acquire.
		332
		333	=item my $lock = cf::lock_acquire $string
		334
		335	Wait until the given lock is available and then acquires it and returns
		336	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		337	for example when the coroutine gets canceled), the lock is automatically
		338	returned.
		339
		340	Locks are *not* recursive, locking from the same coro twice results in a
		341	deadlocked coro.
		342
		343	Lock names should begin with a unique identifier (for example, cf::map::find
		344	uses map_find and cf::map::load uses map_load).
		345
		346	=item $locked = cf::lock_active $string
		347
		348	Return true if the lock is currently active, i.e. somebody has locked it.
		349
		350	=cut
		351
		352	our %LOCK;
		353	our %LOCKER;#d#
		354
		355	sub lock_wait($) {
		356	my ($key) = @_;
		357
		358	if ($LOCKER{$key} == $Coro::current) {#d#
		359	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		360	return;#d#
		361	}#d#
		362
		363	# wait for lock, if any
		364	while ($LOCK{$key}) {
		365	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
		366	push @{ $LOCK{$key} }, $Coro::current;
		367	Coro::schedule;
		368	}
		369	}
		370
		371	sub lock_acquire($) {
		372	my ($key) = @_;
		373
		374	# wait, to be sure we are not locked
		375	lock_wait $key;
		376
		377	$LOCK{$key} = [];
		378	$LOCKER{$key} = $Coro::current;#d#
		379
		380	Guard::guard {
		381	delete $LOCKER{$key};#d#
		382	# wake up all waiters, to be on the safe side
		383	$_->ready for @{ delete $LOCK{$key} };
		384	}
		385	}
		386
		387	sub lock_active($) {
		388	my ($key) = @_;
		389
		390	! ! $LOCK{$key}
		391	}
		392
		393	sub freeze_mainloop {
		394	tick_inhibit_inc;
		395
		396	&Guard::guard (\&tick_inhibit_dec);
		397	}
		398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
		457	}
		458	};
		459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
		472	}
		473
		474	=item cf::async { BLOCK }
		475
		476	Currently the same as Coro::async_pool, meaning you cannot use
		477	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		478	thing you are allowed to do is call C<prio> on it.
		479
		480	=cut
		481
		482	BEGIN { *async = \&Coro::async_pool }
		483
		484	=item cf::sync_job { BLOCK }
		485
		486	The design of Deliantra requires that the main coroutine ($Coro::main)
		487	is always able to handle events or runnable, as Deliantra is only
		488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
		490
		491	If it must be done, put the blocking parts into C<sync_job>. This will run
		492	the given BLOCK in another coroutine while waiting for the result. The
		493	server will be frozen during this time, so the block should either finish
		494	fast or be very important.
		495
		496	=cut
		497
182	sub sync_job(&) {	498	sub sync_job(&) {
183	my ($job) = @_;	499	my ($job) = @_;
184		500
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
		504	# this is the main coro, too bad, we have to block
		505	# till the operation succeeds, freezing the server :/
		506
		507	LOG llevError, Carp::longmess "sync job";#d#
		508
		509	my $freeze_guard = freeze_mainloop;
		510
		511	my $busy = 1;
		512	my @res;
		513
		514	(async {
		515	$Coro::current->desc ("sync job coro");
		516	@res = eval { $job->() };
		517	warn $@ if $@;
		518	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
		520
198	while ($busy) {	521	while ($busy) {
		522	if (Coro::nready) {
199	Coro::cede_notself;	523	Coro::cede_notself;
200	Event::one_event unless Coro::nready;	524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
201	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
		532
		533	wantarray ? @res : $res[0]
202	} else {	534	} else {
203	$coro->join;	535	# we are in another coroutine, how wonderful, everything just works
		536
		537	$job->()
204	}	538	}
205
206	wantarray ? @res : $res[0]
207	}	539	}
208		540
209	=item $coro = cf::coro { BLOCK }	541	=item $coro = cf::async_ext { BLOCK }
210		542
211	Creates and returns a new coro. This coro is automcatially being canceled	543	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	544	extension calling this is being unloaded.
213		545
214	=cut	546	=cut
215		547
216	sub coro(&) {	548	sub async_ext(&) {
217	my $cb = shift;	549	my $cb = shift;
218		550
219	my $coro; $coro = async {	551	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		552
226	$coro->on_destroy (sub {	553	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	554	delete $EXT_CORO{$coro+0};
228	});	555	});
229	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
230		557
231	$coro	558	$coro
232	}	559	}
233		560
		561	=item fork_call { }, $args
		562
		563	Executes the given code block with the given arguments in a seperate
		564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
		567
		568	=cut
		569
		570	sub fork_call(&@) {
		571	my ($cb, @args) = @_;
		572
		573	# we seemingly have to make a local copy of the whole thing,
		574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
		576
		577	my @res = Coro::Util::fork_eval {
		578	reset_signals;
		579	&$cb
		580	}, @args;
		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
		661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		748	}
		749
234	=back	750	=back
235		751
236	=cut	752	=cut
237		753
238	#############################################################################	754	#############################################################################
239		755
240	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
241		757
242	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
243	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
245		761
246	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	764	Deliantra).
249		765
250	=over 4	766	=over 4
251		767
252	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
253		769
…		…
297	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
298		814
299	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
300	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
301		817
302	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
303	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
304		820
305	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
306		822
307	=over 4	823	=over 4
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	883	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	884	our @CB_MAP = ();
369		885
370	my %attachment;	886	my %attachment;
371		887
		888	sub cf::attachable::thawer_merge {
		889	# simply override everything except _meta
		890	local $_[0]{_meta};
		891	%{$_[0]} = %{$_[1]};
		892	}
		893
372	sub _attach_cb($$$$) {	894	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	895	my ($registry, $event, $prio, $cb) = @_;
374		896
375	use sort 'stable';	897	use sort 'stable';
376		898
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
411		933
412	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		938
417	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	940	my $pkg = shift @arg;
419		941
420	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
449	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
450	}	972	}
451		973
452	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
453	} else {	975	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
455	}	977	}
456		978
457	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
458	}	980	}
459		981
…		…
461	if (ref $_[0]) {	983	if (ref $_[0]) {
462	_object_attach @_;	984	_object_attach @_;
463	} else {	985	} else {
464	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
465	}	987	}
		988	_recalc_want;
466	};	989	};
467		990
468	# all those should be optimised	991	# all those should be optimised
469	sub cf::attachable::detach {	992	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
474	reattach ($obj);	997	reattach ($obj);
475	} else {	998	} else {
476	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
477	}	1000	}
		1001	_recalc_want;
478	};	1002	};
479		1003
480	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
482		1006
…		…
497	";	1021	";
498	die if $@;	1022	die if $@;
499	}	1023	}
500		1024
501	our $override;	1025	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		1027
504	sub override {	1028	sub override {
505	$override = 1;	1029	$override = 1;
506	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
507	}	1031	}
508		1032
509	sub do_invoke {	1033	sub do_invoke {
510	my $event = shift;	1034	my $event = shift;
511	my $callbacks = shift;	1035	my $callbacks = shift;
512		1036
513	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
514		1038
515	local $override;	1039	local $override;
516		1040
517	for (@$callbacks) {	1041	for (@$callbacks) {
518	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
527	}	1051	}
528		1052
529	0	1053	0
530	}	1054	}
531		1055
532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
533		1057
534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
535		1059
536	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
537		1061
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		1065
542	=back	1066	=back
543		1067
544	=cut	1068	=cut
545		1069
546	#############################################################################	1070	#############################################################################
547	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
548		1114
549	sub reattach {	1115	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	1117	my ($obj) = @_;
		1118
		1119	# no longer needed after getting rid of delete_package?
		1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		1121
553	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
554		1123
555	@$registry = ();	1124	@$registry = ();
556		1125
…		…
571	cf::attachable->attach (	1140	cf::attachable->attach (
572	prio => -1000000,	1141	prio => -1000000,
573	on_instantiate => sub {	1142	on_instantiate => sub {
574	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
575		1144
576	$data = from_json $data;	1145	$data = decode_json $data;
577		1146
578	for (@$data) {	1147	for (@$data) {
579	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
580		1149
581	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
597	sub object_freezer_save {	1166	sub object_freezer_save {
598	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
599		1168
600	sync_job {	1169	sync_job {
601	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
602	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
603	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
604		1174
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	1178	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	1179	aio_close $fh;
610		1180
611	if (@$objs) {	1181	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1182	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1183	aio_chmod $fh, SAVE_MODE;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1184	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1185	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	1186	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	1187	aio_close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1188	aio_rename "$filename.pst~", "$filename.pst";
619	}	1189	}
620	} else {	1190	} else {
621	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
622	}	1192	}
623		1193
624	aio_rename "$filename~", $filename;	1194	aio_rename "$filename~", $filename;
		1195
		1196	$filename =~ s%/[^/]+$%%;
		1197	aio_pathsync $filename if $cf::USE_FSYNC;
625	} else {	1198	} else {
626	warn "FATAL: $filename~: $!\n";	1199	warn "FATAL: $filename~: $!\n";
627	}	1200	}
628	} else {	1201	} else {
629	aio_unlink $filename;	1202	aio_unlink $filename;
630	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
631	}	1204	}
632	}	1205	};
633	}	1206	}
634		1207
635	sub object_freezer_as_string {	1208	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	1209	my ($rdata, $objs) = @_;
637		1210
…		…
649	or return;	1222	or return;
650		1223
651	unless (aio_stat "$filename.pst") {	1224	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1225	(aio_load "$filename.pst", $av) >= 0
653	or return;	1226	or return;
		1227
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1228	my $st = eval { Coro::Storable::thaw $av };
		1229	$av = $st->{objs};
655	}	1230	}
656		1231
		1232	utf8::decode (my $decname = $filename);
		1233	warn sprintf "loading %s (%d,%d)\n",
		1234	$decname, length $data, scalar @{$av || []};
		1235
657	return ($data, $av);	1236	($data, $av)
658	}	1237	}
		1238
		1239	=head2 COMMAND CALLBACKS
		1240
		1241	=over 4
		1242
		1243	=cut
659		1244
660	#############################################################################	1245	#############################################################################
661	# command handling &c	1246	# command handling &c
662		1247
663	=item cf::register_command $name => \&callback($ob,$args);	1248	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1261	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1262	}
678		1263
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1264	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1265
681	Register a callbackf ro execution when the client sends an extcmd packet.	1266	Register a callback for execution when the client sends an (synchronous)
		1267	extcmd packet. Ext commands will be processed in the order they are
		1268	received by the server, like other user commands. The first argument is
		1269	the logged-in player. Ext commands can only be processed after a player
		1270	has logged in successfully.
682		1271
683	If the callback returns something, it is sent back as if reply was being	1272	If the callback returns something, it is sent back as if reply was being
684	called.	1273	called.
685		1274
		1275	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1276
		1277	Register a callback for execution when the client sends an (asynchronous)
		1278	exticmd packet. Exti commands are processed by the server as soon as they
		1279	are received, i.e. out of order w.r.t. other commands. The first argument
		1280	is a client socket. Exti commands can be received anytime, even before
		1281	log-in.
		1282
		1283	If the callback returns something, it is sent back as if reply was being
		1284	called.
		1285
686	=cut	1286	=cut
687		1287
688	sub register_extcmd {	1288	sub register_extcmd {
689	my ($name, $cb) = @_;	1289	my ($name, $cb) = @_;
690		1290
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1291	$EXTCMD{$name} = $cb;
695	}	1292	}
		1293
		1294	sub register_exticmd {
		1295	my ($name, $cb) = @_;
		1296
		1297	$EXTICMD{$name} = $cb;
		1298	}
		1299
		1300	use File::Glob ();
696		1301
697	cf::player->attach (	1302	cf::player->attach (
698	on_command => sub {	1303	on_command => sub {
699	my ($pl, $name, $params) = @_;	1304	my ($pl, $name, $params) = @_;
700		1305
…		…
708	cf::override;	1313	cf::override;
709	},	1314	},
710	on_extcmd => sub {	1315	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1316	my ($pl, $buf) = @_;
712		1317
713	my $msg = eval { from_json $buf };	1318	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1319
715	if (ref $msg) {	1320	if (ref $msg) {
		1321	my ($type, $reply, @payload) =
		1322	"ARRAY" eq ref $msg
		1323	? @$msg
		1324	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1325
		1326	my @reply;
		1327
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1328	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1329	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1330	}
		1331
		1332	$pl->ext_reply ($reply, @reply)
		1333	if $reply;
		1334
721	} else {	1335	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1336	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1337	}
724		1338
725	cf::override;	1339	cf::override;
726	},	1340	},
727	);	1341	);
728		1342
		1343	# "readahead" all extensions
		1344	sub cache_extensions {
		1345	my $grp = IO::AIO::aio_group;
		1346
		1347	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
		1348	for (grep /\.ext$/, @{$_[0]}) {
		1349	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1350	}
		1351	};
		1352
		1353	$grp
		1354	}
		1355
		1356	sub load_extensions {
		1357	cf::sync_job {
		1358	my %todo;
		1359
		1360	for my $path (<$LIBDIR/*.ext>) {
		1361	next unless -r $path;
		1362
		1363	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1364	my $base = $1;
		1365	my $pkg = $1;
		1366	$pkg =~ s/[^[:word:]]/_/g;
		1367	$pkg = "ext::$pkg";
		1368
		1369	open my $fh, "<:utf8", $path
		1370	or die "$path: $!";
		1371
		1372	my $source = do { local $/; <$fh> };
		1373
		1374	my %ext = (
		1375	path => $path,
		1376	base => $base,
		1377	pkg => $pkg,
		1378	);
		1379
		1380	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1381	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1382
		1383	$ext{source} =
		1384	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1385	. "#line 1 \"$path\"\n{\n"
		1386	. $source
		1387	. "\n};\n1";
		1388
		1389	$todo{$base} = \%ext;
		1390	}
		1391
		1392	my %done;
		1393	while (%todo) {
		1394	my $progress;
		1395
		1396	while (my ($k, $v) = each %todo) {
		1397	for (split /,\s*/, $v->{meta}{depends}) {
		1398	goto skip
		1399	unless exists $done{$_};
		1400	}
		1401
		1402	warn "... loading '$k' into '$v->{pkg}'\n";
		1403
		1404	unless (eval $v->{source}) {
		1405	my $msg = $@ ? "$v->{path}: $@\n"
		1406	: "$v->{base}: extension inactive.\n";
		1407
		1408	if (exists $v->{meta}{mandatory}) {
		1409	warn $msg;
		1410	cf::cleanup "mandatory extension failed to load, exiting.";
		1411	}
		1412
		1413	warn $msg;
		1414	}
		1415
		1416	$done{$k} = delete $todo{$k};
		1417	push @EXTS, $v->{pkg};
		1418	$progress = 1;
		1419	}
		1420
		1421	skip:
		1422	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1423	unless $progress;
		1424	}
		1425	};
		1426	}
		1427
		1428	#############################################################################
		1429
		1430	=back
		1431
		1432	=head2 CORE EXTENSIONS
		1433
		1434	Functions and methods that extend core deliantra objects.
		1435
		1436	=cut
		1437
		1438	package cf::player;
		1439
		1440	use Coro::AIO;
		1441
		1442	=head3 cf::player
		1443
		1444	=over 4
		1445
		1446	=item cf::player::num_playing
		1447
		1448	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1449
		1450	=cut
		1451
		1452	sub num_playing {
		1453	scalar grep
		1454	$_->ob->map
		1455	&& !$_->hidden
		1456	&& !$_->ob->flag (cf::FLAG_WIZ),
		1457	cf::player::list
		1458	}
		1459
		1460	=item cf::player::find $login
		1461
		1462	Returns the given player object, loading it if necessary (might block).
		1463
		1464	=cut
		1465
		1466	sub playerdir($) {
		1467	"$PLAYERDIR/"
		1468	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1469	}
		1470
		1471	sub path($) {
		1472	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1473
		1474	(playerdir $login) . "/playerdata"
		1475	}
		1476
		1477	sub find_active($) {
		1478	$cf::PLAYER{$_[0]}
		1479	and $cf::PLAYER{$_[0]}->active
		1480	and $cf::PLAYER{$_[0]}
		1481	}
		1482
		1483	sub exists($) {
		1484	my ($login) = @_;
		1485
		1486	$cf::PLAYER{$login}
		1487	or !aio_stat path $login
		1488	}
		1489
		1490	sub find($) {
		1491	return $cf::PLAYER{$_[0]} || do {
		1492	my $login = $_[0];
		1493
		1494	my $guard = cf::lock_acquire "user_find:$login";
		1495
		1496	$cf::PLAYER{$_[0]} || do {
		1497	# rename old playerfiles to new ones
		1498	#TODO: remove when no longer required
		1499	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1500	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1501	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1502	aio_unlink +(playerdir $login) . "/$login.pl";
		1503
		1504	my $f = new_from_file cf::object::thawer path $login
		1505	or return;
		1506
		1507	my $pl = cf::player::load_pl $f
		1508	or return;
		1509
		1510	local $cf::PLAYER_LOADING{$login} = $pl;
		1511	$f->resolve_delayed_derefs;
		1512	$cf::PLAYER{$login} = $pl
		1513	}
		1514	}
		1515	}
		1516
		1517	sub save($) {
		1518	my ($pl) = @_;
		1519
		1520	return if $pl->{deny_save};
		1521
		1522	my $path = path $pl;
		1523	my $guard = cf::lock_acquire "user_save:$path";
		1524
		1525	return if $pl->{deny_save};
		1526
		1527	aio_mkdir playerdir $pl, 0770;
		1528	$pl->{last_save} = $cf::RUNTIME;
		1529
		1530	cf::get_slot 0.01;
		1531
		1532	$pl->save_pl ($path);
		1533	cf::cede_to_tick;
		1534	}
		1535
		1536	sub new($) {
		1537	my ($login) = @_;
		1538
		1539	my $self = create;
		1540
		1541	$self->ob->name ($login);
		1542	$self->{deny_save} = 1;
		1543
		1544	$cf::PLAYER{$login} = $self;
		1545
		1546	$self
		1547	}
		1548
		1549	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1550
		1551	=cut
		1552
		1553	sub send_msg {
		1554	my $ns = shift->ns
		1555	or return;
		1556	$ns->send_msg (@_);
		1557	}
		1558
		1559	=item $pl->quit_character
		1560
		1561	Nukes the player without looking back. If logged in, the connection will
		1562	be destroyed. May block for a long time.
		1563
		1564	=cut
		1565
		1566	sub quit_character {
		1567	my ($pl) = @_;
		1568
		1569	my $name = $pl->ob->name;
		1570
		1571	$pl->{deny_save} = 1;
		1572	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1573
		1574	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1575	$pl->deactivate;
		1576	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1577	$pl->ob->check_score;
		1578	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1579	$pl->ns->destroy if $pl->ns;
		1580
		1581	my $path = playerdir $pl;
		1582	my $temp = "$path~$cf::RUNTIME~deleting~";
		1583	aio_rename $path, $temp;
		1584	delete $cf::PLAYER{$pl->ob->name};
		1585	$pl->destroy;
		1586
		1587	my $prefix = qr<^~\Q$name\E/>;
		1588
		1589	# nuke player maps
		1590	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1591
		1592	IO::AIO::aio_rmtree $temp;
		1593	}
		1594
		1595	=item $pl->kick
		1596
		1597	Kicks a player out of the game. This destroys the connection.
		1598
		1599	=cut
		1600
		1601	sub kick {
		1602	my ($pl, $kicker) = @_;
		1603
		1604	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1605	$pl->killer ("kicked");
		1606	$pl->ns->destroy;
		1607	}
		1608
		1609	=item cf::player::list_logins
		1610
		1611	Returns am arrayref of all valid playernames in the system, can take a
		1612	while and may block, so not sync_job-capable, ever.
		1613
		1614	=cut
		1615
		1616	sub list_logins {
		1617	my $dirs = aio_readdir $PLAYERDIR
		1618	or return [];
		1619
		1620	my @logins;
		1621
		1622	for my $login (@$dirs) {
		1623	my $path = path $login;
		1624
		1625	# a .pst is a dead give-away for a valid player
		1626	# if no pst file found, open and chekc for blocked users
		1627	if (aio_stat "$path.pst") {
		1628	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1629	aio_read $fh, 0, 512, my $buf, 0 or next;
		1630	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1631	}
		1632
		1633	utf8::decode $login;
		1634	push @logins, $login;
		1635	}
		1636
		1637	\@logins
		1638	}
		1639
		1640	=item $player->maps
		1641
		1642	Returns an arrayref of map paths that are private for this
		1643	player. May block.
		1644
		1645	=cut
		1646
		1647	sub maps($) {
		1648	my ($pl) = @_;
		1649
		1650	$pl = ref $pl ? $pl->ob->name : $pl;
		1651
		1652	my $files = aio_readdir playerdir $pl
		1653	or return;
		1654
		1655	my @paths;
		1656
		1657	for (@$files) {
		1658	utf8::decode $_;
		1659	next if /\.(?:pl|pst)$/;
		1660	next unless /^$PATH_SEP/o;
		1661
		1662	push @paths, cf::map::normalise "~$pl/$_";
		1663	}
		1664
		1665	\@paths
		1666	}
		1667
		1668	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1669
		1670	Expand deliantra pod fragments into protocol xml.
		1671
		1672	=item $player->ext_reply ($msgid, @msg)
		1673
		1674	Sends an ext reply to the player.
		1675
		1676	=cut
		1677
		1678	sub ext_reply($$@) {
		1679	my ($self, $id, @msg) = @_;
		1680
		1681	$self->ns->ext_reply ($id, @msg)
		1682	}
		1683
		1684	=item $player->ext_msg ($type, @msg)
		1685
		1686	Sends an ext event to the client.
		1687
		1688	=cut
		1689
		1690	sub ext_msg($$@) {
		1691	my ($self, $type, @msg) = @_;
		1692
		1693	$self->ns->ext_msg ($type, @msg);
		1694	}
		1695
		1696	=head3 cf::region
		1697
		1698	=over 4
		1699
		1700	=cut
		1701
		1702	package cf::region;
		1703
		1704	=item cf::region::find_by_path $path
		1705
		1706	Tries to decuce the likely region for a map knowing only its path.
		1707
		1708	=cut
		1709
		1710	sub find_by_path($) {
		1711	my ($path) = @_;
		1712
		1713	my ($match, $specificity);
		1714
		1715	for my $region (list) {
		1716	if ($region->{match} && $path =~ $region->{match}) {
		1717	($match, $specificity) = ($region, $region->specificity)
		1718	if $region->specificity > $specificity;
		1719	}
		1720	}
		1721
		1722	$match
		1723	}
		1724
		1725	=back
		1726
		1727	=head3 cf::map
		1728
		1729	=over 4
		1730
		1731	=cut
		1732
		1733	package cf::map;
		1734
		1735	use Fcntl;
		1736	use Coro::AIO;
		1737
		1738	use overload
		1739	'""' => \&as_string,
		1740	fallback => 1;
		1741
		1742	our $MAX_RESET = 3600;
		1743	our $DEFAULT_RESET = 3000;
		1744
		1745	sub generate_random_map {
		1746	my ($self, $rmp) = @_;
		1747
		1748	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1749
		1750	# mit "rum" bekleckern, nicht
		1751	$self->_create_random_map (
		1752	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1753	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1754	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1755	$rmp->{exit_on_final_map},
		1756	$rmp->{xsize}, $rmp->{ysize},
		1757	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1758	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1759	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1760	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1761	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1762	(cf::region::find $rmp->{region}), $rmp->{custom}
		1763	)
		1764	}
		1765
		1766	=item cf::map->register ($regex, $prio)
		1767
		1768	Register a handler for the map path matching the given regex at the
		1769	givne priority (higher is better, built-in handlers have priority 0, the
		1770	default).
		1771
		1772	=cut
		1773
729	sub register {	1774	sub register {
		1775	my (undef, $regex, $prio) = @_;
		1776	my $pkg = caller;
		1777
		1778	no strict;
		1779	push @{"$pkg\::ISA"}, __PACKAGE__;
		1780
		1781	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1782	}
		1783
		1784	# also paths starting with '/'
		1785	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1786
		1787	sub thawer_merge {
730	my ($base, $pkg) = @_;	1788	my ($self, $merge) = @_;
731		1789
732	#TODO	1790	# we have to keep some variables in memory intact
733	}	1791	local $self->{path};
		1792	local $self->{load_path};
734		1793
735	sub load_extension {	1794	$self->SUPER::thawer_merge ($merge);
		1795	}
		1796
		1797	sub normalise {
736	my ($path) = @_;	1798	my ($path, $base) = @_;
737		1799
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1800	$path = "$path"; # make sure its a string
739	my $base = $1;
740	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743		1801
744	warn "loading '$path' into '$pkg'\n";	1802	$path =~ s/\.map$//;
745		1803
746	open my $fh, "<:utf8", $path	1804	# map plan:
747	or die "$path: $!";	1805	#
		1806	# /! non-realised random map exit (special hack!)
		1807	# {... are special paths that are not being touched
		1808	# ?xxx/... are special absolute paths
		1809	# ?random/... random maps
		1810	# /... normal maps
		1811	# ~user/... per-player map of a specific user
748		1812
749	my $source =	1813	$path =~ s/$PATH_SEP/\//go;
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754		1814
755	eval $source	1815	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1816	# something that looks reasonable
757	: "extension disabled.\n";	1817	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1818	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1819
759	push @exts, $pkg;	1820	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1821	$path = "$base/$path";
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	1822	}
778		1823
779	# remove commands	1824	for ($path) {
780	for my $name (keys %COMMAND) {	1825	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1826	redo if s{/\.?/}{/};
		1827	redo if s{/[^/]+/\.\./}{/};
		1828	}
782		1829
783	if (@cb) {	1830	$path
784	$COMMAND{$name} = \@cb;	1831	}
		1832
		1833	sub new_from_path {
		1834	my (undef, $path, $base) = @_;
		1835
		1836	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1837
		1838	$path = normalise $path, $base;
		1839
		1840	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1841	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1842	my $self = bless cf::map::new, $pkg;
		1843	$self->{path} = $path; $self->path ($path);
		1844	$self->init; # pass $1 etc.
		1845	return $self;
		1846	}
		1847	}
		1848
		1849	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1850	()
		1851	}
		1852
		1853	sub init {
		1854	my ($self) = @_;
		1855
		1856	$self
		1857	}
		1858
		1859	sub as_string {
		1860	my ($self) = @_;
		1861
		1862	"$self->{path}"
		1863	}
		1864
		1865	# the displayed name, this is a one way mapping
		1866	sub visible_name {
		1867	&as_string
		1868	}
		1869
		1870	# the original (read-only) location
		1871	sub load_path {
		1872	my ($self) = @_;
		1873
		1874	"$MAPDIR/$self->{path}.map"
		1875	}
		1876
		1877	# the temporary/swap location
		1878	sub save_path {
		1879	my ($self) = @_;
		1880
		1881	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1882	"$TMPDIR/$path.map"
		1883	}
		1884
		1885	# the unique path, undef == no special unique path
		1886	sub uniq_path {
		1887	my ($self) = @_;
		1888
		1889	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1890	"$UNIQUEDIR/$path"
		1891	}
		1892
		1893	# and all this just because we cannot iterate over
		1894	# all maps in C++...
		1895	sub change_all_map_light {
		1896	my ($change) = @_;
		1897
		1898	$_->change_map_light ($change)
		1899	for grep $_->outdoor, values %cf::MAP;
		1900	}
		1901
		1902	sub decay_objects {
		1903	my ($self) = @_;
		1904
		1905	return if $self->{deny_reset};
		1906
		1907	$self->do_decay_objects;
		1908	}
		1909
		1910	sub unlink_save {
		1911	my ($self) = @_;
		1912
		1913	utf8::encode (my $save = $self->save_path);
		1914	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1915	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1916	}
		1917
		1918	sub load_header_from($) {
		1919	my ($self, $path) = @_;
		1920
		1921	utf8::encode $path;
		1922	my $f = new_from_file cf::object::thawer $path
		1923	or return;
		1924
		1925	$self->_load_header ($f)
		1926	or return;
		1927
		1928	local $MAP_LOADING{$self->{path}} = $self;
		1929	$f->resolve_delayed_derefs;
		1930
		1931	$self->{load_path} = $path;
		1932
		1933	1
		1934	}
		1935
		1936	sub load_header_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->load_header_from ($self->load_path)
		1940	}
		1941
		1942	sub load_header_temp {
		1943	my ($self) = @_;
		1944
		1945	$self->load_header_from ($self->save_path)
		1946	}
		1947
		1948	sub prepare_temp {
		1949	my ($self) = @_;
		1950
		1951	$self->last_access ((delete $self->{last_access})
		1952	|| $cf::RUNTIME); #d#
		1953	# safety
		1954	$self->{instantiate_time} = $cf::RUNTIME
		1955	if $self->{instantiate_time} > $cf::RUNTIME;
		1956	}
		1957
		1958	sub prepare_orig {
		1959	my ($self) = @_;
		1960
		1961	$self->{load_original} = 1;
		1962	$self->{instantiate_time} = $cf::RUNTIME;
		1963	$self->last_access ($cf::RUNTIME);
		1964	$self->instantiate;
		1965	}
		1966
		1967	sub load_header {
		1968	my ($self) = @_;
		1969
		1970	if ($self->load_header_temp) {
		1971	$self->prepare_temp;
785	} else {	1972	} else {
786	delete $COMMAND{$name};	1973	$self->load_header_orig
787	}	1974	or return;
		1975	$self->prepare_orig;
		1976	}
		1977
		1978	$self->{deny_reset} = 1
		1979	if $self->no_reset;
		1980
		1981	$self->default_region (cf::region::find_by_path $self->{path})
		1982	unless $self->default_region;
		1983
788	}	1984	1
		1985	}
789		1986
790	# remove extcmds	1987	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1988	sub find {
792	delete $EXTCMD{$name};	1989	my ($path, $origin) = @_;
		1990
		1991	$path = normalise $path, $origin && $origin->path;
		1992
		1993	cf::lock_wait "map_data:$path";#d#remove
		1994	cf::lock_wait "map_find:$path";
		1995
		1996	$cf::MAP{$path} || do {
		1997	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1998	my $guard2 = cf::lock_acquire "map_find:$path";
		1999
		2000	my $map = new_from_path cf::map $path
		2001	or return;
		2002
		2003	$map->{last_save} = $cf::RUNTIME;
		2004
		2005	$map->load_header
		2006	or return;
		2007
		2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2009	# doing this can freeze the server in a sync job, obviously
		2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
		2013	$map->reset;
		2014	return find $path;
		2015	}
		2016
		2017	$cf::MAP{$path} = $map
		2018	}
		2019	}
		2020
		2021	sub pre_load { }
		2022	sub post_load { }
		2023
		2024	sub load {
		2025	my ($self) = @_;
		2026
		2027	local $self->{deny_reset} = 1; # loading can take a long time
		2028
		2029	my $path = $self->{path};
		2030
793	}	2031	{
		2032	my $guard = cf::lock_acquire "map_data:$path";
794		2033
795	if (my $cb = $pkg->can ("unload")) {	2034	return unless $self->valid;
796	eval {	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
797	$cb->($pkg);	2036
		2037	$self->in_memory (cf::MAP_LOADING);
		2038
		2039	$self->alloc;
		2040
		2041	$self->pre_load;
		2042	cf::cede_to_tick;
		2043
		2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
		2047	or return;
		2048
		2049	$self->post_load_original
		2050	if delete $self->{load_original};
		2051
		2052	if (my $uniq = $self->uniq_path) {
		2053	utf8::encode $uniq;
		2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
		2056	$self->clear_unique_items;
		2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
798	1	2060	}
799	} or warn "$pkg unloaded, but with errors: $@";	2061	}
800	}
801		2062
802	Symbol::delete_package $pkg;	2063	$f->resolve_delayed_derefs;
803	}
804		2064
805	sub load_extensions {	2065	cf::cede_to_tick;
806	for my $ext (<$LIBDIR/*.ext>) {	2066	# now do the right thing for maps
807	next unless -r $ext;	2067	$self->link_multipart_objects;
808	eval {	2068	$self->difficulty ($self->estimate_difficulty)
809	load_extension $ext;	2069	unless $self->difficulty;
810	1	2070	cf::cede_to_tick;
811	} or warn "$ext not loaded: $@";
812	}
813	}
814		2071
815	#############################################################################	2072	unless ($self->{deny_activate}) {
816	# load/save/clean perl data associated with a map	2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
		2077	$self->set_darkness_map;
		2078	cf::cede_to_tick;
		2079	$self->activate;
		2080	}
817		2081
818	*cf::mapsupport::on_clean = sub {	2082	$self->{last_save} = $cf::RUNTIME;
		2083	$self->last_access ($cf::RUNTIME);
		2084
		2085	$self->in_memory (cf::MAP_ACTIVE);
		2086	}
		2087
		2088	$self->post_load;
		2089	}
		2090
		2091	sub customise_for {
		2092	my ($self, $ob) = @_;
		2093
		2094	return find "~" . $ob->name . "/" . $self->{path}
		2095	if $self->per_player;
		2096
		2097	# return find "?party/" . $ob->name . "/" . $self->{path}
		2098	# if $self->per_party;
		2099
		2100	$self
		2101	}
		2102
		2103	# find and load all maps in the 3x3 area around a map
		2104	sub load_neighbours {
819	my ($map) = @_;	2105	my ($map) = @_;
820		2106
821	my $path = $map->tmpname;	2107	my @neigh; # diagonal neighbours
822	defined $path or return;
823		2108
824	unlink "$path.pst";	2109	for (0 .. 3) {
825	};	2110	my $neigh = $map->tile_path ($_)
		2111	or next;
		2112	$neigh = find $neigh, $map
		2113	or next;
		2114	$neigh->load;
826		2115
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2116	push @neigh,
		2117	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2118	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2119	}
828		2120
829	#############################################################################	2121	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	2122	my ($path, $origin) = @$_;
831		2123	my $neigh = find $path, $origin
832	sub all_objects(@) {	2124	or next;
833	@_, map all_objects ($_->inv), @_	2125	$neigh->load;
		2126	}
834	}	2127	}
835		2128
836	# TODO: compatibility cruft, remove when no longer needed	2129	sub find_sync {
837	cf::player->attach (	2130	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		2131
841	for my $o (all_objects $pl->ob) {	2132	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2133	}
843	$o->set_ob_key_value ("_perl_data");
844		2134
845	%$o = %{ Storable::thaw pack "H*", $value };	2135	sub do_load_sync {
		2136	my ($map) = @_;
		2137
		2138	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2139	if $Coro::current == $Coro::main;
		2140
		2141	cf::sync_job { $map->load };
		2142	}
		2143
		2144	our %MAP_PREFETCH;
		2145	our $MAP_PREFETCHER = undef;
		2146
		2147	sub find_async {
		2148	my ($path, $origin, $load) = @_;
		2149
		2150	$path = normalise $path, $origin && $origin->{path};
		2151
		2152	if (my $map = $cf::MAP{$path}) {
		2153	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2154	}
		2155
		2156	$MAP_PREFETCH{$path} |= $load;
		2157
		2158	$MAP_PREFETCHER ||= cf::async {
		2159	$Coro::current->{desc} = "map prefetcher";
		2160
		2161	while (%MAP_PREFETCH) {
		2162	while (my ($k, $v) = each %MAP_PREFETCH) {
		2163	if (my $map = find $k) {
		2164	$map->load if $v;
		2165	}
		2166
		2167	delete $MAP_PREFETCH{$k};
846	}	2168	}
847	}	2169	}
		2170	undef $MAP_PREFETCHER;
		2171	};
		2172	$MAP_PREFETCHER->prio (6);
		2173
		2174	()
		2175	}
		2176
		2177	sub save {
		2178	my ($self) = @_;
		2179
		2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2181
		2182	$self->{last_save} = $cf::RUNTIME;
		2183
		2184	return unless $self->dirty;
		2185
		2186	my $save = $self->save_path; utf8::encode $save;
		2187	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2188
		2189	$self->{load_path} = $save;
		2190
		2191	return if $self->{deny_save};
		2192
		2193	local $self->{last_access} = $self->last_access;#d#
		2194
		2195	cf::async {
		2196	$Coro::current->{desc} = "map player save";
		2197	$_->contr->save for $self->players;
		2198	};
		2199
		2200	cf::get_slot 0.02;
		2201
		2202	if ($uniq) {
		2203	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2204	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2205	} else {
		2206	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2207	}
849	);	2208	}
850		2209
851	#############################################################################	2210	sub swap_out {
		2211	my ($self) = @_;
852		2212
853	=head2 CORE EXTENSIONS	2213	# save first because save cedes
		2214	$self->save;
854		2215
855	Functions and methods that extend core crossfire objects.	2216	my $lock = cf::lock_acquire "map_data:$self->{path}";
856		2217
857	=head3 cf::player	2218	return if $self->players;
		2219	return if $self->in_memory != cf::MAP_ACTIVE;
		2220	return if $self->{deny_save};
		2221
		2222	$self->in_memory (cf::MAP_SWAPPED);
		2223
		2224	$self->deactivate;
		2225	$_->clear_links_to ($self) for values %cf::MAP;
		2226	$self->clear;
		2227	}
		2228
		2229	sub reset_at {
		2230	my ($self) = @_;
		2231
		2232	# TODO: safety, remove and allow resettable per-player maps
		2233	return 1e99 if $self->{deny_reset};
		2234
		2235	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2236	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2237
		2238	$time + $to
		2239	}
		2240
		2241	sub should_reset {
		2242	my ($self) = @_;
		2243
		2244	$self->reset_at <= $cf::RUNTIME
		2245	}
		2246
		2247	sub reset {
		2248	my ($self) = @_;
		2249
		2250	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2251
		2252	return if $self->players;
		2253
		2254	warn "resetting map ", $self->path;
		2255
		2256	$self->in_memory (cf::MAP_SWAPPED);
		2257
		2258	# need to save uniques path
		2259	unless ($self->{deny_save}) {
		2260	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2261
		2262	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2263	if $uniq;
		2264	}
		2265
		2266	delete $cf::MAP{$self->path};
		2267
		2268	$self->deactivate;
		2269	$_->clear_links_to ($self) for values %cf::MAP;
		2270	$self->clear;
		2271
		2272	$self->unlink_save;
		2273	$self->destroy;
		2274	}
		2275
		2276	my $nuke_counter = "aaaa";
		2277
		2278	sub nuke {
		2279	my ($self) = @_;
		2280
		2281	{
		2282	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2283
		2284	delete $cf::MAP{$self->path};
		2285
		2286	$self->unlink_save;
		2287
		2288	bless $self, "cf::map";
		2289	delete $self->{deny_reset};
		2290	$self->{deny_save} = 1;
		2291	$self->reset_timeout (1);
		2292	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2293
		2294	$cf::MAP{$self->path} = $self;
		2295	}
		2296
		2297	$self->reset; # polite request, might not happen
		2298	}
		2299
		2300	=item $maps = cf::map::tmp_maps
		2301
		2302	Returns an arrayref with all map paths of currently instantiated and saved
		2303	maps. May block.
		2304
		2305	=cut
		2306
		2307	sub tmp_maps() {
		2308	[
		2309	map {
		2310	utf8::decode $_;
		2311	/\.map$/
		2312	? normalise $_
		2313	: ()
		2314	} @{ aio_readdir $TMPDIR or [] }
		2315	]
		2316	}
		2317
		2318	=item $maps = cf::map::random_maps
		2319
		2320	Returns an arrayref with all map paths of currently instantiated and saved
		2321	random maps. May block.
		2322
		2323	=cut
		2324
		2325	sub random_maps() {
		2326	[
		2327	map {
		2328	utf8::decode $_;
		2329	/\.map$/
		2330	? normalise "?random/$_"
		2331	: ()
		2332	} @{ aio_readdir $RANDOMDIR or [] }
		2333	]
		2334	}
		2335
		2336	=item cf::map::unique_maps
		2337
		2338	Returns an arrayref of paths of all shared maps that have
		2339	instantiated unique items. May block.
		2340
		2341	=cut
		2342
		2343	sub unique_maps() {
		2344	[
		2345	map {
		2346	utf8::decode $_;
		2347	s/\.map$//; # TODO future compatibility hack
		2348	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2349	? ()
		2350	: normalise $_
		2351	} @{ aio_readdir $UNIQUEDIR or [] }
		2352	]
		2353	}
		2354
		2355	=back
		2356
		2357	=head3 cf::object
		2358
		2359	=cut
		2360
		2361	package cf::object;
858		2362
859	=over 4	2363	=over 4
860		2364
861	=item cf::player::exists $login	2365	=item $ob->inv_recursive
862		2366
863	Returns true when the given account exists.	2367	Returns the inventory of the object I<and> their inventories, recursively,
		2368	but I<not> the object itself.
864		2369
865	=cut	2370	=cut
866		2371
867	sub cf::player::exists($) {	2372	sub inv_recursive_;
868	cf::player::find $_[0]	2373	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2374	map { $_, inv_recursive_ $_->inv } @_
870	}	2375	}
871		2376
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2377	sub inv_recursive {
873		2378	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	2379	}
		2380
		2381	=item $ref = $ob->ref
		2382
		2383	Creates and returns a persistent reference to an object that can be stored as a string.
		2384
		2385	=item $ob = cf::object::deref ($refstring)
		2386
		2387	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2388	even if the object actually exists. May block.
		2389
		2390	=cut
		2391
		2392	sub deref {
		2393	my ($ref) = @_;
		2394
		2395	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2396	my ($uuid, $name) = ($1, $2);
		2397	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2398	or return;
		2399	$pl->ob->uuid eq $uuid
		2400	or return;
		2401
		2402	$pl->ob
		2403	} else {
		2404	warn "$ref: cannot resolve object reference\n";
		2405	undef
		2406	}
		2407	}
		2408
		2409	package cf;
885		2410
886	=back	2411	=back
887		2412
888	=head3 cf::object::player	2413	=head3 cf::object::player
889		2414
…		…
894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2419	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
895	can be C<undef>. Does the right thing when the player is currently in a	2420	can be C<undef>. Does the right thing when the player is currently in a
896	dialogue with the given NPC character.	2421	dialogue with the given NPC character.
897		2422
898	=cut	2423	=cut
		2424
		2425	our $SAY_CHANNEL = {
		2426	id => "say",
		2427	title => "Map",
		2428	reply => "say ",
		2429	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2430	};
		2431
		2432	our $CHAT_CHANNEL = {
		2433	id => "chat",
		2434	title => "Chat",
		2435	reply => "chat ",
		2436	tooltip => "Player chat and shouts, global to the server.",
		2437	};
899		2438
900	# rough implementation of a future "reply" method that works	2439	# rough implementation of a future "reply" method that works
901	# with dialog boxes.	2440	# with dialog boxes.
902	#TODO: the first argument must go, split into a $npc->reply_to ( method	2441	#TODO: the first argument must go, split into a $npc->reply_to ( method
903	sub cf::object::player::reply($$$;$) {	2442	sub cf::object::player::reply($$$;$) {
…		…
905		2444
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2445	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2446
908	if ($self->{record_replies}) {	2447	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2448	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2449
910	} else {	2450	} else {
		2451	my $pl = $self->contr;
		2452
		2453	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2454	my $dialog = $pl->{npc_dialog};
		2455	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2456
		2457	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2458	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2459	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2460	}
913	}	2461	}
		2462	}
		2463
		2464	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2465
		2466	=cut
		2467
		2468	sub cf::object::send_msg {
		2469	my $pl = shift->contr
		2470	or return;
		2471	$pl->send_msg (@_);
914	}	2472	}
915		2473
916	=item $player_object->may ("access")	2474	=item $player_object->may ("access")
917		2475
918	Returns wether the given player is authorized to access resource "access"	2476	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2485	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2486	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2487	: $cf::CFG{"may_$access"})
930	}	2488	}
931		2489
		2490	=item $player_object->enter_link
		2491
		2492	Freezes the player and moves him/her to a special map (C<{link}>).
		2493
		2494	The player should be reasonably safe there for short amounts of time (e.g.
		2495	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2496	though, as the palyer cannot control the character while it is on the link
		2497	map.
		2498
		2499	Will never block.
		2500
		2501	=item $player_object->leave_link ($map, $x, $y)
		2502
		2503	Moves the player out of the special C<{link}> map onto the specified
		2504	map. If the map is not valid (or omitted), the player will be moved back
		2505	to the location he/she was before the call to C<enter_link>, or, if that
		2506	fails, to the emergency map position.
		2507
		2508	Might block.
		2509
		2510	=cut
		2511
		2512	sub link_map {
		2513	unless ($LINK_MAP) {
		2514	$LINK_MAP = cf::map::find "{link}"
		2515	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2516	$LINK_MAP->load;
		2517	}
		2518
		2519	$LINK_MAP
		2520	}
		2521
		2522	sub cf::object::player::enter_link {
		2523	my ($self) = @_;
		2524
		2525	$self->deactivate_recursive;
		2526
		2527	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2528
		2529	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2530	if $self->map && $self->map->{path} ne "{link}";
		2531
		2532	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2533	}
		2534
		2535	sub cf::object::player::leave_link {
		2536	my ($self, $map, $x, $y) = @_;
		2537
		2538	return unless $self->contr->active;
		2539
		2540	my $link_pos = delete $self->{_link_pos};
		2541
		2542	unless ($map) {
		2543	# restore original map position
		2544	($map, $x, $y) = @{ $link_pos || [] };
		2545	$map = cf::map::find $map;
		2546
		2547	unless ($map) {
		2548	($map, $x, $y) = @$EMERGENCY_POSITION;
		2549	$map = cf::map::find $map
		2550	or die "FATAL: cannot load emergency map\n";
		2551	}
		2552	}
		2553
		2554	($x, $y) = (-1, -1)
		2555	unless (defined $x) && (defined $y);
		2556
		2557	# use -1 or undef as default coordinates, not 0, 0
		2558	($x, $y) = ($map->enter_x, $map->enter_y)
		2559	if $x <=0 && $y <= 0;
		2560
		2561	$map->load;
		2562	$map->load_neighbours;
		2563
		2564	return unless $self->contr->active;
		2565	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
		2566	$self->activate_recursive;
		2567
		2568	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2569	$self->enter_map ($map, $x, $y);
		2570	}
		2571
		2572	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2573
		2574	Moves the player to the given map-path and coordinates by first freezing
		2575	her, loading and preparing them map, calling the provided $check callback
		2576	that has to return the map if sucecssful, and then unfreezes the player on
		2577	the new (success) or old (failed) map position. In either case, $done will
		2578	be called at the end of this process.
		2579
		2580	Note that $check will be called with a potentially non-loaded map, so if
		2581	it needs a loaded map it has to call C<< ->load >>.
		2582
		2583	=cut
		2584
		2585	our $GOTOGEN;
		2586
		2587	sub cf::object::player::goto {
		2588	my ($self, $path, $x, $y, $check, $done) = @_;
		2589
		2590	# do generation counting so two concurrent goto's will be executed in-order
		2591	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2592
		2593	$self->enter_link;
		2594
		2595	(async {
		2596	$Coro::current->{desc} = "player::goto $path $x $y";
		2597
		2598	# *tag paths override both path and x|y
		2599	if ($path =~ /^\*(.*)$/) {
		2600	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2601	my $ob = $obs[rand @obs];
		2602
		2603	# see if we actually can go there
		2604	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2605	$ob = $obs[rand @obs];
		2606	} else {
		2607	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2608	}
		2609	# else put us there anyways for now #d#
		2610
		2611	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2612	} else {
		2613	($path, $x, $y) = (undef, undef, undef);
		2614	}
		2615	}
		2616
		2617	my $map = eval {
		2618	my $map = defined $path ? cf::map::find $path : undef;
		2619
		2620	if ($map) {
		2621	$map = $map->customise_for ($self);
		2622	$map = $check->($map) if $check && $map;
		2623	} else {
		2624	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2625	}
		2626
		2627	$map
		2628	};
		2629
		2630	if ($@) {
		2631	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	LOG llevError | logBacktrace, Carp::longmess $@;
		2633	}
		2634
		2635	if ($gen == $self->{_goto_generation}) {
		2636	delete $self->{_goto_generation};
		2637	$self->leave_link ($map, $x, $y);
		2638	}
		2639
		2640	$done->() if $done;
		2641	})->prio (1);
		2642	}
		2643
		2644	=item $player_object->enter_exit ($exit_object)
		2645
		2646	=cut
		2647
		2648	sub parse_random_map_params {
		2649	my ($spec) = @_;
		2650
		2651	my $rmp = { # defaults
		2652	xsize => (cf::rndm 15, 40),
		2653	ysize => (cf::rndm 15, 40),
		2654	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2655	#layout => string,
		2656	};
		2657
		2658	for (split /\n/, $spec) {
		2659	my ($k, $v) = split /\s+/, $_, 2;
		2660
		2661	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2662	}
		2663
		2664	$rmp
		2665	}
		2666
		2667	sub prepare_random_map {
		2668	my ($exit) = @_;
		2669
		2670	# all this does is basically replace the /! path by
		2671	# a new random map path (?random/...) with a seed
		2672	# that depends on the exit object
		2673
		2674	my $rmp = parse_random_map_params $exit->msg;
		2675
		2676	if ($exit->map) {
		2677	$rmp->{region} = $exit->region->name;
		2678	$rmp->{origin_map} = $exit->map->path;
		2679	$rmp->{origin_x} = $exit->x;
		2680	$rmp->{origin_y} = $exit->y;
		2681
		2682	$exit->map->touch;
		2683	}
		2684
		2685	$rmp->{random_seed} ||= $exit->random_seed;
		2686
		2687	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2688	my $md5 = Digest::MD5::md5_hex $data;
		2689	my $meta = "$RANDOMDIR/$md5.meta";
		2690
		2691	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2692	aio_write $fh, 0, (length $data), $data, 0;
		2693	undef $fh;
		2694	aio_rename "$meta~", $meta;
		2695
		2696	my $slaying = "?random/$md5";
		2697
		2698	if ($exit->valid) {
		2699	$exit->slaying ("?random/$md5");
		2700	$exit->msg (undef);
		2701	}
		2702	}
		2703	}
		2704
		2705	sub cf::object::player::enter_exit {
		2706	my ($self, $exit) = @_;
		2707
		2708	return unless $self->type == cf::PLAYER;
		2709
		2710	$self->enter_link;
		2711
		2712	(async {
		2713	$Coro::current->{desc} = "enter_exit";
		2714
		2715	unless (eval {
		2716	$self->deactivate_recursive; # just to be sure
		2717
		2718	# random map handling
		2719	{
		2720	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2721
		2722	prepare_random_map $exit
		2723	if $exit->slaying eq "/!";
		2724	}
		2725
		2726	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2727	my $x = $exit->stats->hp;
		2728	my $y = $exit->stats->sp;
		2729
		2730	$self->goto ($map, $x, $y);
		2731
		2732	# if exit is damned, update players death & WoR home-position
		2733	$self->contr->savebed ($map, $x, $y)
		2734	if $exit->flag (cf::FLAG_DAMNED);
		2735
		2736	1
		2737	}) {
		2738	$self->message ("Something went wrong deep within the deliantra server. "
		2739	. "I'll try to bring you back to the map you were before. "
		2740	. "Please report this to the dungeon master!",
		2741	cf::NDI_UNIQUE | cf::NDI_RED);
		2742
		2743	warn "ERROR in enter_exit: $@";
		2744	$self->leave_link;
		2745	}
		2746	})->prio (1);
		2747	}
		2748
932	=head3 cf::client	2749	=head3 cf::client
933		2750
934	=over 4	2751	=over 4
935		2752
936	=item $client->send_drawinfo ($text, $flags)	2753	=item $client->send_drawinfo ($text, $flags)
…		…
942		2759
943	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
945		2762
946	utf8::encode $text;	2763	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2765	}
949		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/skills" => {
		2815	id => "infobox",
		2816	title => "Skills",
		2817	reply => undef,
		2818	tooltip => "Shows your experience per skill and item power",
		2819	},
		2820	"c/uptime" => {
		2821	id => "infobox",
		2822	title => "Uptime",
		2823	reply => undef,
		2824	tooltip => "How long the server has been running since last restart",
		2825	},
		2826	"c/mapinfo" => {
		2827	id => "infobox",
		2828	title => "Map Info",
		2829	reply => undef,
		2830	tooltip => "Information related to the maps",
		2831	},
		2832	"c/party" => {
		2833	id => "party",
		2834	title => "Party",
		2835	reply => "gsay ",
		2836	tooltip => "Messages and chat related to your party",
		2837	},
		2838	);
		2839
		2840	sub cf::client::send_msg {
		2841	my ($self, $channel, $msg, $color, @extra) = @_;
		2842
		2843	$msg = $self->pl->expand_cfpod ($msg)
		2844	unless $color & cf::NDI_VERBATIM;
		2845
		2846	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2847
		2848	# check predefined channels, for the benefit of C
		2849	if ($CHANNEL{$channel}) {
		2850	$channel = $CHANNEL{$channel};
		2851
		2852	$self->ext_msg (channel_info => $channel)
		2853	if $self->can_msg;
		2854
		2855	$channel = $channel->{id};
		2856
		2857	} elsif (ref $channel) {
		2858	# send meta info to client, if not yet sent
		2859	unless (exists $self->{channel}{$channel->{id}}) {
		2860	$self->{channel}{$channel->{id}} = $channel;
		2861	$self->ext_msg (channel_info => $channel)
		2862	if $self->can_msg;
		2863	}
		2864
		2865	$channel = $channel->{id};
		2866	}
		2867
		2868	return unless @extra || length $msg;
		2869
		2870	if ($self->can_msg) {
		2871	# default colour, mask it out
		2872	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2873	if $color & cf::NDI_DEF;
		2874
		2875	my $pkt = "msg "
		2876	. $self->{json_coder}->encode (
		2877	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2878	);
		2879
		2880	# try lzf for large packets
		2881	$pkt = "lzf " . Compress::LZF::compress $pkt
		2882	if 1024 <= length $pkt and $self->{can_lzf};
		2883
		2884	# split very large packets
		2885	if (8192 < length $pkt and $self->{can_lzf}) {
		2886	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2887	$pkt = "frag";
		2888	}
		2889
		2890	$self->send_packet ($pkt);
		2891	} else {
		2892	if ($color >= 0) {
		2893	# replace some tags by gcfclient-compatible ones
		2894	for ($msg) {
		2895	1 while
		2896	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2897	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2898	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2899	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2900	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2901	}
		2902
		2903	$color &= cf::NDI_COLOR_MASK;
		2904
		2905	utf8::encode $msg;
		2906
		2907	if (0 && $msg =~ /\[/) {
		2908	# COMMAND/INFO
		2909	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2910	} else {
		2911	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2912	$self->send_packet ("drawinfo $color $msg")
		2913	}
		2914	}
		2915	}
		2916	}
		2917
		2918	=item $client->ext_msg ($type, @msg)
		2919
		2920	Sends an ext event to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_msg($$@) {
		2925	my ($self, $type, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
		2930	push @msg, msgtype => "event_$type";
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
		2951	}
950		2952
951	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
952		2954
953	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		2958
957	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	2960	become reliable at some point in the future.
959		2961
960	=cut	2962	=cut
961		2963
962	sub cf::client::query {	2964	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	2973	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		2975
974	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
976	}	2980	}
977		2981
978	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
979	on_reply => sub {	2988	on_reply => sub {
980	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
981		2990
982	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
983	# get handled first	2992	# get handled first
984	my $queue = delete $ns->{query_queue};	2993	my $queue = delete $ns->{query_queue}
		2994	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2995
986	(shift @$queue)->[1]->($msg);	2996	(shift @$queue)->[1]->($msg);
		2997	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2998
988	push @{ $ns->{query_queue} }, @$queue;	2999	push @{ $ns->{query_queue} }, @$queue;
989		3000
990	if (@{ $ns->{query_queue} } == @$queue) {	3001	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	3002	if (@$queue) {
…		…
993	} else {	3004	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	3006	}
996	}	3007	}
997	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
998	);	3035	);
999		3036
1000	=item $client->coro (\&cb)	3037	=item $client->async (\&cb)
1001		3038
1002	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	3040	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	3041	or loss of connection).
1005		3042
1006	=cut	3043	=cut
1007		3044
1008	sub cf::client::coro {	3045	sub cf::client::async {
1009	my ($self, $cb) = @_;	3046	my ($self, $cb) = @_;
1010		3047
1011	my $coro; $coro = async {	3048	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		3049
1018	$coro->on_destroy (sub {	3050	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	3051	delete $self->{_coro}{$coro+0};
1020	});	3052	});
1021		3053
…		…
1048	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
1050		3082
1051	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
1052		3084
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
1054		3090
1055	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
1056		3092
1057	=pod	3093	=pod
1058		3094
1059	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
1060		3096
1061	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100
1062	cf::object::player player	3101	cf::object::player
1063	cf::player peaceful	3102	player
1064	cf::map trigger	3103
		3104	cf::player
		3105	peaceful
		3106
		3107	cf::map
		3108	trigger
1065		3109
1066	=cut	3110	=cut
1067		3111
1068	for (	3112	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	3113	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3114	insert remove inv nrof name archname title slaying race
		3115	decrease split destroy change_exp)],
1070	["cf::object::player" => qw(player)],	3116	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	3117	["cf::player" => qw(peaceful)],
1072	["cf::map" => qw(trigger)],	3118	["cf::map" => qw(trigger)],
1073	) {	3119	) {
1074	no strict 'refs';	3120	no strict 'refs';
…		…
1145	=back	3191	=back
1146		3192
1147	=cut	3193	=cut
1148		3194
1149	#############################################################################	3195	#############################################################################
		3196	# the server's init and main functions
1150		3197
1151	=head2 EXTENSION DATABASE SUPPORT	3198	sub load_facedata($) {
		3199	my ($path) = @_;
1152		3200
1153	Crossfire maintains a very simple database for extension use. It can	3201	# HACK to clear player env face cache, we need some signal framework
1154	currently store anything that can be serialised using Storable, which	3202	# for this (global event?)
1155	excludes objects.	3203	%ext::player_env::MUSIC_FACE_CACHE = ();
1156		3204
1157	The parameter C<$family> should best start with the name of the extension	3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1158	using it, it should be unique.
1159		3206
1160	=over 4	3207	warn "loading facedata from $path\n";
1161		3208
1162	=item $hashref = cf::db_get $family	3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
1163		3212
1164	Return a hashref for use by the extension C<$family>, which can be	3213	$facedata = Coro::Storable::thaw $facedata;
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167		3214
1168	=item $value = cf::db_get $family => $key	3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
1169		3217
1170	Returns a single value from the database	3218	# patch in the exptable
		3219	$facedata->{resource}{"res/exp_table"} = {
		3220	type => FT_RSRC,
		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3222	};
		3223	cf::cede_to_tick;
1171		3224
1172	=item cf::db_put $family => $hashref	3225	{
		3226	my $faces = $facedata->{faceinfo};
1173		3227
1174	Stores the given family hashref into the database. Updates are delayed, if	3228	while (my ($face, $info) = each %$faces) {
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1176		3230
1177	=item cf::db_put $family => $key => $value	3231	cf::face::set_visibility $idx, $info->{visibility};
		3232	cf::face::set_magicmap $idx, $info->{magicmap};
		3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1178		3235
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	3236	cf::cede_to_tick;
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.	3237	}
1181		3238
1182	=item cf::db_dirty	3239	while (my ($face, $info) = each %$faces) {
		3240	next unless $info->{smooth};
1183		3241
1184	Marks the database as dirty, to be updated at a later time.	3242	my $idx = cf::face::find $face
		3243	or next;
1185		3244
1186	=item cf::db_sync	3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
1187		3251
1188	Immediately write the database to disk I<if it is dirty>.	3252	cf::cede_to_tick;
		3253	}
		3254	}
1189		3255
1190	=cut	3256	{
		3257	my $anims = $facedata->{animinfo};
1191		3258
1192	our $DB;	3259	while (my ($anim, $info) = each %$anims) {
		3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
		3263
		3264	cf::anim::invalidate_all; # d'oh
		3265	}
		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
		3333	sub load_resource_file($) {
		3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
		3349	or die "unable to load regions file\n";
		3350
		3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
		3384	open my $fh, "<:utf8", "$CONFDIR/config"
		3385	or return;
		3386
		3387	local $/;
		3388	*CFG = YAML::Load <$fh>;
		3389
		3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3391
		3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3394
		3395	if (exists $CFG{mlockall}) {
		3396	eval {
		3397	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3398	and die "WARNING: m(un)lockall failed: $!\n";
		3399	};
		3400	warn $@ if $@;
		3401	}
		3402	}
		3403
		3404	sub pidfile() {
		3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main {
		3424	cf::init_globals; # initialise logging
		3425
		3426	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3427	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3428	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3429	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3430
		3431	cf::init_experience;
		3432	cf::init_anim;
		3433	cf::init_attackmess;
		3434	cf::init_dynamic;
		3435	cf::init_block;
		3436
		3437	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3438
		3439	# we must not ever block the main coroutine
		3440	local $Coro::idle = sub {
		3441	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3442	(async {
		3443	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3444	EV::loop EV::LOOP_ONESHOT;
		3445	})->prio (Coro::PRIO_MAX);
		3446	};
		3447
		3448	evthread_start IO::AIO::poll_fileno;
		3449
		3450	cf::sync_job {
		3451	reload_resources;
		3452	reload_config;
		3453	db_init;
		3454
		3455	cf::load_settings;
		3456	cf::load_materials;
		3457	cf::init_uuid;
		3458	cf::init_signals;
		3459	cf::init_commands;
		3460	cf::init_skills;
		3461
		3462	cf::init_beforeplay;
		3463
		3464	atomic;
		3465
		3466	load_extensions;
		3467
		3468	utime time, time, $RUNTIMEFILE;
		3469
		3470	# no (long-running) fork's whatsoever before this point(!)
		3471	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3472
		3473	(pop @POST_INIT)->(0) while @POST_INIT;
		3474	};
		3475
		3476	EV::loop;
		3477	}
		3478
		3479	#############################################################################
		3480	# initialisation and cleanup
		3481
		3482	# install some emergency cleanup handlers
		3483	BEGIN {
		3484	our %SIGWATCHER = ();
		3485	for my $signal (qw(INT HUP TERM)) {
		3486	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3487	cf::cleanup "SIG$signal";
		3488	};
		3489	}
		3490	}
		3491
		3492	sub write_runtime_sync {
		3493	# first touch the runtime file to show we are still running:
		3494	# the fsync below can take a very very long time.
		3495
		3496	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3497
		3498	my $guard = cf::lock_acquire "write_runtime";
		3499
		3500	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3501	or return;
		3502
		3503	my $value = $cf::RUNTIME + 90 + 10;
		3504	# 10 is the runtime save interval, for a monotonic clock
		3505	# 60 allows for the watchdog to kill the server.
		3506
		3507	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3508	and return;
		3509
		3510	# always fsync - this file is important
		3511	aio_fsync $fh
		3512	and return;
		3513
		3514	# touch it again to show we are up-to-date
		3515	aio_utime $fh, undef, undef;
		3516
		3517	close $fh
		3518	or return;
		3519
		3520	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3521	and return;
		3522
		3523	warn "runtime file written.\n";
		3524
		3525	1
		3526	}
		3527
		3528	our $uuid_lock;
		3529	our $uuid_skip;
		3530
		3531	sub write_uuid_sync($) {
		3532	$uuid_skip ||= $_[0];
		3533
		3534	return if $uuid_lock;
		3535	local $uuid_lock = 1;
		3536
		3537	my $uuid = "$LOCALDIR/uuid";
		3538
		3539	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3540	or return;
		3541
		3542	my $value = uuid_seq uuid_cur;
		3543
		3544	unless ($value) {
		3545	warn "cowardly refusing to write zero uuid value!\n";
		3546	return;
		3547	}
		3548
		3549	my $value = uuid_str $value + $uuid_skip;
		3550	$uuid_skip = 0;
		3551
		3552	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3553	and return;
		3554
		3555	# always fsync - this file is important
		3556	aio_fsync $fh
		3557	and return;
		3558
		3559	close $fh
		3560	or return;
		3561
		3562	aio_rename "$uuid~", $uuid
		3563	and return;
		3564
		3565	warn "uuid file written ($value).\n";
		3566
		3567	1
		3568
		3569	}
		3570
		3571	sub write_uuid($$) {
		3572	my ($skip, $sync) = @_;
		3573
		3574	$sync ? write_uuid_sync $skip
		3575	: async { write_uuid_sync $skip };
		3576	}
		3577
		3578	sub emergency_save() {
		3579	my $freeze_guard = cf::freeze_mainloop;
		3580
		3581	warn "emergency_perl_save: enter\n";
		3582
		3583	cf::sync_job {
		3584	# this is a trade-off: we want to be very quick here, so
		3585	# save all maps without fsync, and later call a global sync
		3586	# (which in turn might be very very slow)
		3587	local $USE_FSYNC = 0;
		3588
		3589	# use a peculiar iteration method to avoid tripping on perl
		3590	# refcount bugs in for. also avoids problems with players
		3591	# and maps saved/destroyed asynchronously.
		3592	warn "emergency_perl_save: begin player save\n";
		3593	for my $login (keys %cf::PLAYER) {
		3594	my $pl = $cf::PLAYER{$login} or next;
		3595	$pl->valid or next;
		3596	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3597	$pl->save;
		3598	}
		3599	warn "emergency_perl_save: end player save\n";
		3600
		3601	warn "emergency_perl_save: begin map save\n";
		3602	for my $path (keys %cf::MAP) {
		3603	my $map = $cf::MAP{$path} or next;
		3604	$map->valid or next;
		3605	$map->save;
		3606	}
		3607	warn "emergency_perl_save: end map save\n";
		3608
		3609	warn "emergency_perl_save: begin database checkpoint\n";
		3610	BDB::db_env_txn_checkpoint $DB_ENV;
		3611	warn "emergency_perl_save: end database checkpoint\n";
		3612
		3613	warn "emergency_perl_save: begin write uuid\n";
		3614	write_uuid_sync 1;
		3615	warn "emergency_perl_save: end write uuid\n";
		3616	};
		3617
		3618	warn "emergency_perl_save: starting sync()\n";
		3619	IO::AIO::aio_sync sub {
		3620	warn "emergency_perl_save: finished sync()\n";
		3621	};
		3622
		3623	warn "emergency_perl_save: leave\n";
		3624	}
		3625
		3626	sub post_cleanup {
		3627	my ($make_core) = @_;
		3628
		3629	warn Carp::longmess "post_cleanup backtrace"
		3630	if $make_core;
		3631
		3632	my $fh = pidfile;
		3633	unlink $PIDFILE if <$fh> == $$;
		3634	}
		3635
		3636	# a safer delete_package, copied from Symbol
		3637	sub clear_package($) {
		3638	my $pkg = shift;
		3639
		3640	# expand to full symbol table name if needed
		3641	unless ($pkg =~ /^main::.*::$/) {
		3642	$pkg = "main$pkg" if $pkg =~ /^::/;
		3643	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3644	$pkg .= '::' unless $pkg =~ /::$/;
		3645	}
		3646
		3647	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3648	my $stem_symtab = *{$stem}{HASH};
		3649
		3650	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3651	or return;
		3652
		3653	# clear all symbols
		3654	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3655	for my $name (keys %$leaf_symtab) {
		3656	_gv_clear *{"$pkg$name"};
		3657	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3658	}
		3659	warn "cleared package $pkg\n";#d#
		3660	}
		3661
		3662	sub do_reload_perl() {
		3663	# can/must only be called in main
		3664	if ($Coro::current != $Coro::main) {
		3665	warn "can only reload from main coroutine";
		3666	return;
		3667	}
		3668
		3669	return if $RELOAD++;
		3670
		3671	my $t1 = EV::time;
		3672
		3673	while ($RELOAD) {
		3674	warn "reloading...";
		3675
		3676	warn "entering sync_job";
		3677
		3678	cf::sync_job {
		3679	cf::write_runtime_sync; # external watchdog should not bark
		3680	cf::emergency_save;
		3681	cf::write_runtime_sync; # external watchdog should not bark
		3682
		3683	warn "syncing database to disk";
		3684	BDB::db_env_txn_checkpoint $DB_ENV;
		3685
		3686	# if anything goes wrong in here, we should simply crash as we already saved
		3687
		3688	warn "flushing outstanding aio requests";
		3689	while (IO::AIO::nreqs || BDB::nreqs) {
		3690	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3691	}
		3692
		3693	warn "cancelling all extension coros";
		3694	$_->cancel for values %EXT_CORO;
		3695	%EXT_CORO = ();
		3696
		3697	warn "removing commands";
		3698	%COMMAND = ();
		3699
		3700	warn "removing ext/exti commands";
		3701	%EXTCMD = ();
		3702	%EXTICMD = ();
		3703
		3704	warn "unloading/nuking all extensions";
		3705	for my $pkg (@EXTS) {
		3706	warn "... unloading $pkg";
		3707
		3708	if (my $cb = $pkg->can ("unload")) {
		3709	eval {
		3710	$cb->($pkg);
		3711	1
		3712	} or warn "$pkg unloaded, but with errors: $@";
		3713	}
		3714
		3715	warn "... clearing $pkg";
		3716	clear_package $pkg;
		3717	}
		3718
		3719	warn "unloading all perl modules loaded from $LIBDIR";
		3720	while (my ($k, $v) = each %INC) {
		3721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3722
		3723	warn "... unloading $k";
		3724	delete $INC{$k};
		3725
		3726	$k =~ s/\.pm$//;
		3727	$k =~ s/\//::/g;
		3728
		3729	if (my $cb = $k->can ("unload_module")) {
		3730	$cb->();
		3731	}
		3732
		3733	clear_package $k;
		3734	}
		3735
		3736	warn "getting rid of safe::, as good as possible";
		3737	clear_package "safe::$_"
		3738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3739
		3740	warn "unloading cf.pm \"a bit\"";
		3741	delete $INC{"cf.pm"};
		3742	delete $INC{"cf/pod.pm"};
		3743
		3744	# don't, removes xs symbols, too,
		3745	# and global variables created in xs
		3746	#clear_package __PACKAGE__;
		3747
		3748	warn "unload completed, starting to reload now";
		3749
		3750	warn "reloading cf.pm";
		3751	require cf;
		3752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		3753
		3754	warn "loading config and database again";
		3755	cf::reload_config;
		3756
		3757	warn "loading extensions";
		3758	cf::load_extensions;
		3759
		3760	if ($REATTACH_ON_RELOAD) {
		3761	warn "reattaching attachments to objects/players";
		3762	_global_reattach; # objects, sockets
		3763	warn "reattaching attachments to maps";
		3764	reattach $_ for values %MAP;
		3765	warn "reattaching attachments to players";
		3766	reattach $_ for values %PLAYER;
		3767	}
		3768
		3769	warn "running post_init jobs";
		3770	(pop @POST_INIT)->(1) while @POST_INIT;
		3771
		3772	warn "leaving sync_job";
		3773
		3774	1
		3775	} or do {
		3776	warn $@;
		3777	cf::cleanup "error while reloading, exiting.";
		3778	};
		3779
		3780	warn "reloaded";
		3781	--$RELOAD;
		3782	}
		3783
		3784	$t1 = EV::time - $t1;
		3785	warn "reload completed in ${t1}s\n";
		3786	};
		3787
		3788	our $RELOAD_WATCHER; # used only during reload
		3789
		3790	sub reload_perl() {
		3791	# doing reload synchronously and two reloads happen back-to-back,
		3792	# coro crashes during coro_state_free->destroy here.
		3793
		3794	$RELOAD_WATCHER ||= cf::async {
		3795	Coro::AIO::aio_wait cache_extensions;
		3796
		3797	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3798	do_reload_perl;
		3799	undef $RELOAD_WATCHER;
		3800	};
		3801	};
		3802	}
		3803
		3804	register_command "reload" => sub {
		3805	my ($who, $arg) = @_;
		3806
		3807	if ($who->flag (FLAG_WIZ)) {
		3808	$who->message ("reloading server.");
		3809	async {
		3810	$Coro::current->{desc} = "perl_reload";
		3811	reload_perl;
		3812	};
		3813	}
		3814	};
		3815
		3816	unshift @INC, $LIBDIR;
		3817
		3818	my $bug_warning = 0;
		3819
		3820	our @WAIT_FOR_TICK;
		3821	our @WAIT_FOR_TICK_BEGIN;
		3822
		3823	sub wait_for_tick {
		3824	return if tick_inhibit || $Coro::current == $Coro::main;
		3825
		3826	my $signal = new Coro::Signal;
		3827	push @WAIT_FOR_TICK, $signal;
		3828	$signal->wait;
		3829	}
		3830
		3831	sub wait_for_tick_begin {
		3832	return if tick_inhibit || $Coro::current == $Coro::main;
		3833
		3834	my $signal = new Coro::Signal;
		3835	push @WAIT_FOR_TICK_BEGIN, $signal;
		3836	$signal->wait;
		3837	}
		3838
		3839	sub tick {
		3840	if ($Coro::current != $Coro::main) {
		3841	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3842	unless ++$bug_warning > 10;
		3843	return;
		3844	}
		3845
		3846	cf::server_tick; # one server iteration
		3847
		3848	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3849	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3850	Coro::async_pool {
		3851	$Coro::current->{desc} = "runtime saver";
		3852	write_runtime_sync
		3853	or warn "ERROR: unable to write runtime file: $!";
		3854	};
		3855	}
		3856
		3857	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3858	$sig->send;
		3859	}
		3860	while (my $sig = shift @WAIT_FOR_TICK) {
		3861	$sig->send;
		3862	}
		3863
		3864	$LOAD = ($NOW - $TICK_START) / $TICK;
		3865	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3866
		3867	if (0) {
		3868	if ($NEXT_TICK) {
		3869	my $jitter = $TICK_START - $NEXT_TICK;
		3870	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3871	warn "jitter $JITTER\n";#d#
		3872	}
		3873	}
		3874	}
1193		3875
1194	{	3876	{
1195	my $path = cf::localdir . "/database.pst";	3877	# configure BDB
1196		3878
1197	sub db_load() {	3879	BDB::min_parallel 8;
1198	warn "loading database $path\n";#d# remove later	3880	BDB::max_poll_reqs $TICK * 0.1;
1199	$DB = stat $path ? Storable::retrieve $path : { };	3881	$AnyEvent::BDB::WATCHER->priority (1);
1200	}
1201		3882
1202	my $pid;	3883	unless ($DB_ENV) {
		3884	$DB_ENV = BDB::db_env_create;
		3885	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3886	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3887	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3888	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3889	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1203		3890
1204	sub db_save() {	3891	cf::sync_job {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {	3892	eval {
1241	$DB->{$_[0]} = $_[1];	3893	BDB::db_env_open
1242	}	3894	$DB_ENV,
1243	db_dirty;	3895	$BDBDIR,
1244	}	3896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3898	0666;
1245		3899
1246	cf::global->attach (	3900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},
1251	);
1252	}
1253
1254	#############################################################################
1255	# the server's main()
1256
1257	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;
1260
1261	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;
1263	}
1264
1265	sub main {
1266	cfg_load;
1267	db_load;
1268	load_extensions;
1269	Event::loop;
1270	}
1271
1272	#############################################################################
1273	# initialisation
1274
1275	sub _perl_reload() {
1276	warn "reloading...";
1277
1278	eval {
1279	local $FREEZE = 1;
1280
1281	cf::emergency_save;
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}
1287
1288	# cancel all extension coros
1289	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();
1291
1292	# unload all extensions
1293	for (@exts) {
1294	warn "unloading <$_>";
1295	unload_extension $_;
1296	}
1297
1298	# unload all modules loaded from $LIBDIR
1299	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301
1302	warn "removing <$k>";
1303	delete $INC{$k};
1304
1305	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;
1307
1308	if (my $cb = $k->can ("unload_module")) {
1309	$cb->();
1310	}	3901	};
1311		3902
1312	Symbol::delete_package $k;	3903	cf::cleanup "db_env_open(db): $@" if $@;
1313	}	3904	};
		3905	}
1314		3906
1315	# sync database to disk	3907	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1316	cf::db_sync;	3908	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible
1320	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"
1327	delete $INC{"cf.pm"};
1328
1329	# don't, removes xs symbols, too,
1330	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;
1332
1333	# reload cf.pm
1334	warn "reloading cf.pm";
1335	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337
1338	# load config and database again
1339	cf::cfg_load;
1340	cf::db_load;
1341
1342	# load extensions
1343	warn "load extensions";
1344	cf::load_extensions;
1345
1346	# reattach attachments to objects
1347	warn "reattach";
1348	_global_reattach;
1349	};	3909	};
1350	warn $@ if $@;	3910	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1351		3911	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1352	warn "reloaded";
1353	};
1354
1355	sub perl_reload() {
1356	_perl_reload;
1357	}
1358
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {
1362	my ($who, $arg) = @_;
1363
1364	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");
1366	_perl_reload;
1367	}	3912	};
1368	};	3913	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3914	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3915	};
		3916	}
1369		3917
1370	unshift @INC, $LIBDIR;	3918	{
		3919	# configure IO::AIO
1371		3920
1372	$TICK_WATCHER = Event->timer (	3921	IO::AIO::min_parallel 8;
1373	reentrant => 0,	3922	IO::AIO::max_poll_time $TICK * 0.1;
1374	prio => 0,	3923	undef $AnyEvent::AIO::WATCHER;
1375	at => $NEXT_TICK || $TICK,	3924	}
1376	data => WF_AUTOCANCEL,	3925
1377	cb => sub {	3926	my $_log_backtrace;
1378	unless ($FREEZE) {	3927
1379	cf::server_tick; # one server iteration	3928	sub _log_backtrace {
1380	$RUNTIME += $TICK;	3929	my ($msg, @addr) = @_;
		3930
		3931	$msg =~ s/\n//;
		3932
		3933	# limit the # of concurrent backtraces
		3934	if ($_log_backtrace < 2) {
		3935	++$_log_backtrace;
		3936	my $perl_bt = Carp::longmess $msg;
		3937	async {
		3938	$Coro::current->{desc} = "abt $msg";
		3939
		3940	my @bt = fork_call {
		3941	@addr = map { sprintf "%x", $_ } @addr;
		3942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3944	or die "addr2line: $!";
		3945
		3946	my @funcs;
		3947	my @res = <$fh>;
		3948	chomp for @res;
		3949	while (@res) {
		3950	my ($func, $line) = splice @res, 0, 2, ();
		3951	push @funcs, "[$func] $line";
		3952	}
		3953
		3954	@funcs
		3955	};
		3956
		3957	LOG llevInfo, "[ABT] $perl_bt\n";
		3958	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3959	LOG llevInfo, "[ABT] $_\n" for @bt;
		3960	--$_log_backtrace;
1381	}	3961	};
1382		3962	} else {
1383	$NEXT_TICK += $TICK;	3963	LOG llevInfo, "[ABT] $msg\n";
1384		3964	LOG llevInfo, "[ABT] [suppressed]\n";
1385	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387
1388	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;
1390	},	3965	}
1391	);	3966	}
1392		3967
1393	IO::AIO::max_poll_time $TICK * 0.2;	3968	# load additional modules
		3969	use cf::pod;
1394		3970
1395	Event->io (fd => IO::AIO::poll_fileno,	3971	END { cf::emergency_save }
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);
1400
1401	# we must not ever block the main coroutine
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		3972
1410	1	3973	1
1411		3974

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