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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.481 by root, Sun Oct 11 00:24:35 2009 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 qw(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::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
		56	use Digest::MD5;
20	use Fcntl;	57	use Fcntl;
		58	use YAML ();
21	use IO::AIO 2.31 ();	59	use IO::AIO ();
22	use YAML::Syck ();
23	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
24		63
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
26		65
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
28	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29		70
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
31		79
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		81
34	our %COMMAND = ();	82	our %COMMAND = ();
35	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
		84
		85	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
		88	our %EXT_CORO = (); # coroutines bound to extensions
		89	our %EXT_MAP = (); # pluggable maps
37		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
38	our @EVENT;	92	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
40		95
41	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
42	our $TICK_WATCHER;	97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	114	our $NEXT_TICK;
44	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod match mapscript);
45		123
46	our %CFG;	124	our %CFG;
47		125
48	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
50		129
51	our %MAP; # all maps	130	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	131	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	132	our $LINK_MAP; # the special {link} map, which is always available
		133
		134	# used to convert map paths into valid unix filenames by replacing / by ∕
		135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
54		146
55	binmode STDOUT;	147	binmode STDOUT;
56	binmode STDERR;	148	binmode STDERR;
57		149
58	# read virtual server time, if available	150	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
63	}	155	}
64		156
65	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
66	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		158
70	our %EXT_CORO;	159	mkdir $_
		160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		161
		162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = { map $_ => undef, grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
71		176
72	#############################################################################	177	#############################################################################
73		178
74	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
75		180
…		…
82	=item $cf::RUNTIME	187	=item $cf::RUNTIME
83		188
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	190	every server tick.
86		191
87	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		195
89	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
91		200
92	=item $cf::NOW	201	=item $cf::NOW
93		202
94	The time of the last (current) server tick.	203	The time of the last (current) server tick.
95		204
96	=item $cf::TICK	205	=item $cf::TICK
97		206
98	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
99		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
100	=item %cf::CFG	219	=item %cf::CFG
101		220
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	222	from wherever your confdir points to.
104		223
		224	=item cf::wait_for_tick, cf::wait_for_tick_begin
		225
		226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		227	returns directly I<after> the tick processing (and consequently, can only wake one process
		228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
105	=back	242	=back
106		243
107	=cut	244	=cut
108		245
109	BEGIN {	246	$Coro::State::WARNHOOK = sub {
110	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	247	my $msg = join "", @_;
112	utf8::encode $msg;
113		248
114	$msg .= "\n"	249	$msg .= "\n"
115	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
116		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
117	LOG llevError, "cfperl: $msg";	254	LOG llevError, $msg;
118	};	255	};
119	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
120		270
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		278
128	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	280	# within the Safe compartment.
130	for my $pkg (qw(	281	for my $pkg (qw(
131	cf::global cf::attachable	282	cf::global cf::attachable
132	cf::object cf::object::player	283	cf::object cf::object::player
133	cf::client cf::player	284	cf::client cf::player
134	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
135	cf::map cf::party cf::region	287	cf::party cf::region
136	)) {	288	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	290	}
140		291
141	$Event::DIED = sub {	292	$EV::DIED = sub {
142	warn "error in event callback: @_";	293	warn "error in event callback: @_";
143	};	294	};
144		295
145	my %ext_pkg;	296	#############################################################################
146	my @exts;
147	my @hook;
148		297
149	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
150		299
151	=over 4	300	=over 4
152		301
153	=cut	302	=item dumpval $ref
154		303
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	304	=cut
156		305
		306	sub dumpval {
		307	eval {
		308	local $SIG{__DIE__};
		309	my $d;
		310	if (1) {
		311	$d = new Data::Dumper([$_[0]], ["*var"]);
		312	$d->Terse(1);
		313	$d->Indent(2);
		314	$d->Quotekeys(0);
		315	$d->Useqq(1);
		316	#$d->Bless(...);
		317	$d->Seen($_[1]) if @_ > 1;
		318	$d = $d->Dump();
		319	}
		320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		321	$d
		322	} || "[unable to dump $_[0]: '$@']";
		323	}
		324
157	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
158		326
159	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
160		328
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
169		330
170	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
171		332
172	=cut	333	=cut
173		334
174	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
176	JSON::Syck::Dump $_[0]	337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
177	}	352	}
		353
		354	=item cf::lock_wait $string
		355
		356	Wait until the given lock is available. See cf::lock_acquire.
		357
		358	=item my $lock = cf::lock_acquire $string
		359
		360	Wait until the given lock is available and then acquires it and returns
		361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		362	for example when the coroutine gets canceled), the lock is automatically
		363	returned.
		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
		368	Lock names should begin with a unique identifier (for example, cf::map::find
		369	uses map_find and cf::map::load uses map_load).
		370
		371	=item $locked = cf::lock_active $string
		372
		373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
		378
		379	sub lock_wait($) {
		380	$LOCKS->wait ($_[0]);
		381	}
		382
		383	sub lock_acquire($) {
		384	$LOCKS->guard ($_[0])
		385	}
		386
		387	sub lock_active($) {
		388	$LOCKS->count ($_[0]) < 1
		389	}
		390
		391	sub freeze_mainloop {
		392	tick_inhibit_inc;
		393
		394	&Guard::guard (\&tick_inhibit_dec);
		395	}
		396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
		455	}
		456	};
		457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
		470	}
		471
		472	=item cf::async { BLOCK }
		473
		474	Currently the same as Coro::async_pool, meaning you cannot use
		475	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		476	thing you are allowed to do is call C<prio> on it.
		477
		478	=cut
		479
		480	BEGIN { *async = \&Coro::async_pool }
178		481
179	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
180		483
181	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
184		488
185	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
188	fast or be very important.	492	fast or be very important.
…		…
190	=cut	494	=cut
191		495
192	sub sync_job(&) {	496	sub sync_job(&) {
193	my ($job) = @_;	497	my ($job) = @_;
194		498
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
		502	# this is the main coro, too bad, we have to block
		503	# till the operation succeeds, freezing the server :/
		504
		505	LOG llevError, Carp::longmess "sync job";#d#
		506
		507	my $freeze_guard = freeze_mainloop;
		508
		509	my $busy = 1;
		510	my @res;
		511
		512	(async {
		513	$Coro::current->desc ("sync job coro");
		514	@res = eval { $job->() };
		515	warn $@ if $@;
		516	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
		518
209	while ($busy) {	519	while ($busy) {
		520	if (Coro::nready) {
210	Coro::cede_notself;	521	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
212	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
		530
		531	wantarray ? @res : $res[0]
213	} else {	532	} else {
214	$coro->join;	533	# we are in another coroutine, how wonderful, everything just works
		534
		535	$job->()
215	}	536	}
216
217	wantarray ? @res : $res[0]
218	}	537	}
219		538
220	=item $coro = cf::coro { BLOCK }	539	=item $coro = cf::async_ext { BLOCK }
221		540
222	Creates and returns a new coro. This coro is automcatially being canceled	541	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	542	extension calling this is being unloaded.
224		543
225	=cut	544	=cut
226		545
227	sub coro(&) {	546	sub async_ext(&) {
228	my $cb = shift;	547	my $cb = shift;
229		548
230	my $coro; $coro = async {	549	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		550
237	$coro->on_destroy (sub {	551	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	552	delete $EXT_CORO{$coro+0};
239	});	553	});
240	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
241		555
242	$coro	556	$coro
243	}	557	}
244		558
		559	=item fork_call { }, $args
		560
		561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
		565
		566	=cut
		567
		568	sub fork_call(&@) {
		569	my ($cb, @args) = @_;
		570
		571	# we seemingly have to make a local copy of the whole thing,
		572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
		574
		575	my @res = Coro::Util::fork_eval {
		576	reset_signals;
		577	&$cb
		578	}, @args;
		579
		580	wantarray ? @res : $res[-1]
		581	}
		582
		583	=item $coin = coin_from_name $name
		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
		659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
		735	}
		736
		737	=item cf::datalog type => key => value, ...
		738
		739	Log a datalog packet of the given type with the given key-value pairs.
		740
		741	=cut
		742
		743	sub datalog($@) {
		744	my ($type, %kv) = @_;
		745	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		746	}
		747
245	=back	748	=back
246		749
247	=cut	750	=cut
248		751
249	#############################################################################	752	#############################################################################
250		753
251	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
252		755
253	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
254	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
256		759
257	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
258	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	762	Deliantra).
260		763
261	=over 4	764	=over 4
262		765
263	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
264		767
…		…
308	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
309		812
310	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
311	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
312		815
313	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
314	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
315		818
316	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
317		820
318	=over 4	821	=over 4
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	881	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	882	our @CB_MAP = ();
380		883
381	my %attachment;	884	my %attachment;
382		885
		886	sub cf::attachable::thawer_merge {
		887	# simply override everything except _meta
		888	local $_[0]{_meta};
		889	%{$_[0]} = %{$_[1]};
		890	}
		891
383	sub _attach_cb($$$$) {	892	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	893	my ($registry, $event, $prio, $cb) = @_;
385		894
386	use sort 'stable';	895	use sort 'stable';
387		896
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
422		931
423	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		936
428	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	938	my $pkg = shift @arg;
430		939
431	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
461	}	970	}
462		971
463	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
464	} else {	973	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	975	}
467		976
468	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
469	}	978	}
470		979
…		…
472	if (ref $_[0]) {	981	if (ref $_[0]) {
473	_object_attach @_;	982	_object_attach @_;
474	} else {	983	} else {
475	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
476	}	985	}
		986	_recalc_want;
477	};	987	};
478		988
479	# all those should be optimised	989	# all those should be optimised
480	sub cf::attachable::detach {	990	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
485	reattach ($obj);	995	reattach ($obj);
486	} else {	996	} else {
487	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
488	}	998	}
		999	_recalc_want;
489	};	1000	};
490		1001
491	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
493		1004
…		…
508	";	1019	";
509	die if $@;	1020	die if $@;
510	}	1021	}
511		1022
512	our $override;	1023	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		1025
515	sub override {	1026	sub override {
516	$override = 1;	1027	$override = 1;
517	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
518	}	1029	}
519		1030
520	sub do_invoke {	1031	sub do_invoke {
521	my $event = shift;	1032	my $event = shift;
522	my $callbacks = shift;	1033	my $callbacks = shift;
523		1034
524	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
525		1036
526	local $override;	1037	local $override;
527		1038
528	for (@$callbacks) {	1039	for (@$callbacks) {
529	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
538	}	1049	}
539		1050
540	0	1051	0
541	}	1052	}
542		1053
543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
544		1055
545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
546		1057
547	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
548		1059
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
550	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		1063
553	=back	1064	=back
554		1065
555	=cut	1066	=cut
556		1067
557	#############################################################################	1068	#############################################################################
558	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
559		1112
560	sub reattach {	1113	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	1115	my ($obj) = @_;
		1116
		1117	# no longer needed after getting rid of delete_package?
		1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		1119
564	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
565		1121
566	@$registry = ();	1122	@$registry = ();
567		1123
…		…
582	cf::attachable->attach (	1138	cf::attachable->attach (
583	prio => -1000000,	1139	prio => -1000000,
584	on_instantiate => sub {	1140	on_instantiate => sub {
585	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
586		1142
587	$data = from_json $data;	1143	$data = decode_json $data;
588		1144
589	for (@$data) {	1145	for (@$data) {
590	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
591		1147
592	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
608	sub object_freezer_save {	1164	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
610		1166
611	sync_job {	1167	sync_job {
612	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
613	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
615		1172
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
619	aio_fsync $fh;	1178	aio_fsync $fh;
		1179	}
620	close $fh;	1180	aio_close $fh;
621		1181
622	if (@$objs) {	1182	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
		1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
627	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
628	close $fh;	1191	aio_close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
630	}	1193	}
631	} else {	1194	} else {
632	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
633	}	1196	}
634		1197
635	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
636	} else {	1202	} else {
637	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
638	}	1204	}
639	} else {	1205	} else {
640	aio_unlink $filename;	1206	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
642	}	1208	}
643	}	1209	};
644	}	1210	}
645		1211
646	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
648		1214
…		…
660	or return;	1226	or return;
661		1227
662	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
664	or return;	1230	or return;
		1231
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
666	}	1234	}
667		1235
		1236	utf8::decode (my $decname = $filename);
		1237	warn sprintf "loading %s (%d,%d)\n",
		1238	$decname, length $data, scalar @{$av || []};
		1239
668	return ($data, $av);	1240	($data, $av)
669	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
670		1248
671	#############################################################################	1249	#############################################################################
672	# command handling &c	1250	# command handling &c
673		1251
674	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1266	}
689		1267
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1269
692	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
693		1275
694	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
695	called.	1277	called.
696		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
697	=cut	1290	=cut
698		1291
699	sub register_extcmd {	1292	sub register_extcmd {
700	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
701		1294
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1295	$EXTCMD{$name} = $cb;
706	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
707		1305
708	cf::player->attach (	1306	cf::player->attach (
709	on_command => sub {	1307	on_command => sub {
710	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
711		1309
…		…
719	cf::override;	1317	cf::override;
720	},	1318	},
721	on_extcmd => sub {	1319	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
723		1321
724	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1323
726	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
732	} else {	1339	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1341	}
735		1342
736	cf::override;	1343	cf::override;
737	},	1344	},
738	);	1345	);
739		1346
		1347	# "readahead" all extensions
		1348	sub cache_extensions {
		1349	my $grp = IO::AIO::aio_group;
		1350
		1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1352	for (grep /\.ext$/, @{$_[0]}) {
		1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1354	}
		1355	};
		1356
		1357	$grp
		1358	}
		1359
		1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
		1364	for my $path (<$LIBDIR/*.ext>) {
		1365	next unless -r $path;
		1366
		1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
		1423	}
		1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
		1429	};
		1430	}
		1431
		1432	#############################################################################
		1433
		1434	=back
		1435
		1436	=head2 CORE EXTENSIONS
		1437
		1438	Functions and methods that extend core deliantra objects.
		1439
		1440	=cut
		1441
		1442	package cf::player;
		1443
		1444	use Coro::AIO;
		1445
		1446	=head3 cf::player
		1447
		1448	=over 4
		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
		1464	=item cf::player::find $login
		1465
		1466	Returns the given player object, loading it if necessary (might block).
		1467
		1468	=cut
		1469
		1470	sub playerdir($) {
		1471	"$PLAYERDIR/"
		1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1473	}
		1474
		1475	sub path($) {
		1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1477
		1478	(playerdir $login) . "/playerdata"
		1479	}
		1480
		1481	sub find_active($) {
		1482	$cf::PLAYER{$_[0]}
		1483	and $cf::PLAYER{$_[0]}->active
		1484	and $cf::PLAYER{$_[0]}
		1485	}
		1486
		1487	sub exists($) {
		1488	my ($login) = @_;
		1489
		1490	$cf::PLAYER{$login}
		1491	or !aio_stat path $login
		1492	}
		1493
		1494	sub find($) {
		1495	return $cf::PLAYER{$_[0]} || do {
		1496	my $login = $_[0];
		1497
		1498	my $guard = cf::lock_acquire "user_find:$login";
		1499
		1500	$cf::PLAYER{$_[0]} || do {
		1501	# rename old playerfiles to new ones
		1502	#TODO: remove when no longer required
		1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1506	aio_unlink +(playerdir $login) . "/$login.pl";
		1507
		1508	my $f = new_from_file cf::object::thawer path $login
		1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
		1516	$cf::PLAYER{$login} = $pl
		1517	}
		1518	}
		1519	}
		1520
		1521	sub save($) {
		1522	my ($pl) = @_;
		1523
		1524	return if $pl->{deny_save};
		1525
		1526	my $path = path $pl;
		1527	my $guard = cf::lock_acquire "user_save:$path";
		1528
		1529	return if $pl->{deny_save};
		1530
		1531	aio_mkdir playerdir $pl, 0770;
		1532	$pl->{last_save} = $cf::RUNTIME;
		1533
		1534	cf::get_slot 0.01;
		1535
		1536	$pl->save_pl ($path);
		1537	cf::cede_to_tick;
		1538	}
		1539
		1540	sub new($) {
		1541	my ($login) = @_;
		1542
		1543	my $self = create;
		1544
		1545	$self->ob->name ($login);
		1546	$self->{deny_save} = 1;
		1547
		1548	$cf::PLAYER{$login} = $self;
		1549
		1550	$self
		1551	}
		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
		1563	=item $pl->quit_character
		1564
		1565	Nukes the player without looking back. If logged in, the connection will
		1566	be destroyed. May block for a long time.
		1567
		1568	=cut
		1569
		1570	sub quit_character {
		1571	my ($pl) = @_;
		1572
		1573	my $name = $pl->ob->name;
		1574
		1575	$pl->{deny_save} = 1;
		1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1577
		1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
		1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1583	$pl->ns->destroy if $pl->ns;
		1584
		1585	my $path = playerdir $pl;
		1586	my $temp = "$path~$cf::RUNTIME~deleting~";
		1587	aio_rename $path, $temp;
		1588	delete $cf::PLAYER{$pl->ob->name};
		1589	$pl->destroy;
		1590
		1591	my $prefix = qr<^~\Q$name\E/>;
		1592
		1593	# nuke player maps
		1594	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1595
		1596	IO::AIO::aio_rmtree $temp;
		1597	}
		1598
		1599	=item $pl->kick
		1600
		1601	Kicks a player out of the game. This destroys the connection.
		1602
		1603	=cut
		1604
		1605	sub kick {
		1606	my ($pl, $kicker) = @_;
		1607
		1608	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1609	$pl->killer ("kicked");
		1610	$pl->ns->destroy;
		1611	}
		1612
		1613	=item cf::player::list_logins
		1614
		1615	Returns am arrayref of all valid playernames in the system, can take a
		1616	while and may block, so not sync_job-capable, ever.
		1617
		1618	=cut
		1619
		1620	sub list_logins {
		1621	my $dirs = aio_readdir $PLAYERDIR
		1622	or return [];
		1623
		1624	my @logins;
		1625
		1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
		1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1633	aio_read $fh, 0, 512, my $buf, 0 or next;
		1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
		1636
		1637	utf8::decode $login;
		1638	push @logins, $login;
		1639	}
		1640
		1641	\@logins
		1642	}
		1643
		1644	=item $player->maps
		1645
		1646	Returns an arrayref of map paths that are private for this
		1647	player. May block.
		1648
		1649	=cut
		1650
		1651	sub maps($) {
		1652	my ($pl) = @_;
		1653
		1654	$pl = ref $pl ? $pl->ob->name : $pl;
		1655
		1656	my $files = aio_readdir playerdir $pl
		1657	or return;
		1658
		1659	my @paths;
		1660
		1661	for (@$files) {
		1662	utf8::decode $_;
		1663	next if /\.(?:pl|pst)$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise "~$pl/$_";
		1667	}
		1668
		1669	\@paths
		1670	}
		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
		1676	=item $player->ext_reply ($msgid, @msg)
		1677
		1678	Sends an ext reply to the player.
		1679
		1680	=cut
		1681
		1682	sub ext_reply($$@) {
		1683	my ($self, $id, @msg) = @_;
		1684
		1685	$self->ns->ext_reply ($id, @msg)
		1686	}
		1687
		1688	=item $player->ext_msg ($type, @msg)
		1689
		1690	Sends an ext event to the client.
		1691
		1692	=cut
		1693
		1694	sub ext_msg($$@) {
		1695	my ($self, $type, @msg) = @_;
		1696
		1697	$self->ns->ext_msg ($type, @msg);
		1698	}
		1699
		1700	=head3 cf::region
		1701
		1702	=over 4
		1703
		1704	=cut
		1705
		1706	package cf::region;
		1707
		1708	=item cf::region::find_by_path $path
		1709
		1710	Tries to decuce the likely region for a map knowing only its path.
		1711
		1712	=cut
		1713
		1714	sub find_by_path($) {
		1715	my ($path) = @_;
		1716
		1717	my ($match, $specificity);
		1718
		1719	for my $region (list) {
		1720	if ($region->{match} && $path =~ $region->{match}) {
		1721	($match, $specificity) = ($region, $region->specificity)
		1722	if $region->specificity > $specificity;
		1723	}
		1724	}
		1725
		1726	$match
		1727	}
		1728
		1729	=back
		1730
		1731	=head3 cf::map
		1732
		1733	=over 4
		1734
		1735	=cut
		1736
		1737	package cf::map;
		1738
		1739	use Fcntl;
		1740	use Coro::AIO;
		1741
		1742	use overload
		1743	'""' => \&as_string,
		1744	fallback => 1;
		1745
		1746	our $MAX_RESET = 3600;
		1747	our $DEFAULT_RESET = 3000;
		1748
		1749	sub generate_random_map {
		1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
		1754	# mit "rum" bekleckern, nicht
		1755	$self->_create_random_map (
		1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1759	$rmp->{exit_on_final_map},
		1760	$rmp->{xsize}, $rmp->{ysize},
		1761	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1762	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1763	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1764	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1765	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1766	(cf::region::find $rmp->{region}), $rmp->{custom}
		1767	)
		1768	}
		1769
		1770	=item cf::map->register ($regex, $prio)
		1771
		1772	Register a handler for the map path matching the given regex at the
		1773	givne priority (higher is better, built-in handlers have priority 0, the
		1774	default).
		1775
		1776	=cut
		1777
740	sub register {	1778	sub register {
		1779	my (undef, $regex, $prio) = @_;
		1780	my $pkg = caller;
		1781
		1782	no strict;
		1783	push @{"$pkg\::ISA"}, __PACKAGE__;
		1784
		1785	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1786	}
		1787
		1788	# also paths starting with '/'
		1789	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1790
		1791	sub thawer_merge {
741	my ($base, $pkg) = @_;	1792	my ($self, $merge) = @_;
742		1793
743	#TODO	1794	# we have to keep some variables in memory intact
744	}	1795	local $self->{path};
		1796	local $self->{load_path};
745		1797
746	sub load_extension {	1798	$self->SUPER::thawer_merge ($merge);
		1799	}
		1800
		1801	sub normalise {
747	my ($path) = @_;	1802	my ($path, $base) = @_;
748		1803
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1804	$path = "$path"; # make sure its a string
750	my $base = $1;
751	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754		1805
755	warn "loading '$path' into '$pkg'\n";	1806	$path =~ s/\.map$//;
756		1807
757	open my $fh, "<:utf8", $path	1808	# map plan:
758	or die "$path: $!";	1809	#
		1810	# /! non-realised random map exit (special hack!)
		1811	# {... are special paths that are not being touched
		1812	# ?xxx/... are special absolute paths
		1813	# ?random/... random maps
		1814	# /... normal maps
		1815	# ~user/... per-player map of a specific user
759		1816
760	my $source =	1817	$path =~ s/$PATH_SEP/\//go;
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765		1818
766	eval $source	1819	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1820	# something that looks reasonable
768	: "extension disabled.\n";	1821	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1822	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1823
770	push @exts, $pkg;	1824	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1825	$path = "$base/$path";
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	1826	}
789		1827
790	# remove commands	1828	for ($path) {
791	for my $name (keys %COMMAND) {	1829	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1830	redo if s{/\.?/}{/};
		1831	redo if s{/[^/]+/\.\./}{/};
		1832	}
793		1833
794	if (@cb) {	1834	$path
795	$COMMAND{$name} = \@cb;	1835	}
		1836
		1837	sub new_from_path {
		1838	my (undef, $path, $base) = @_;
		1839
		1840	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1841
		1842	$path = normalise $path, $base;
		1843
		1844	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1845	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1846	my $self = bless cf::map::new, $pkg;
		1847	$self->{path} = $path; $self->path ($path);
		1848	$self->init; # pass $1 etc.
		1849	return $self;
		1850	}
		1851	}
		1852
		1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1854	()
		1855	}
		1856
		1857	sub init {
		1858	my ($self) = @_;
		1859
		1860	$self
		1861	}
		1862
		1863	sub as_string {
		1864	my ($self) = @_;
		1865
		1866	"$self->{path}"
		1867	}
		1868
		1869	# the displayed name, this is a one way mapping
		1870	sub visible_name {
		1871	&as_string
		1872	}
		1873
		1874	# the original (read-only) location
		1875	sub load_path {
		1876	my ($self) = @_;
		1877
		1878	"$MAPDIR/$self->{path}.map"
		1879	}
		1880
		1881	# the temporary/swap location
		1882	sub save_path {
		1883	my ($self) = @_;
		1884
		1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1886	"$TMPDIR/$path.map"
		1887	}
		1888
		1889	# the unique path, undef == no special unique path
		1890	sub uniq_path {
		1891	my ($self) = @_;
		1892
		1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1894	"$UNIQUEDIR/$path"
		1895	}
		1896
		1897	sub decay_objects {
		1898	my ($self) = @_;
		1899
		1900	return if $self->{deny_reset};
		1901
		1902	$self->do_decay_objects;
		1903	}
		1904
		1905	sub unlink_save {
		1906	my ($self) = @_;
		1907
		1908	utf8::encode (my $save = $self->save_path);
		1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1911	}
		1912
		1913	sub load_header_from($) {
		1914	my ($self, $path) = @_;
		1915
		1916	utf8::encode $path;
		1917	my $f = new_from_file cf::object::thawer $path
		1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
		1925
		1926	$self->{load_path} = $path;
		1927
		1928	1
		1929	}
		1930
		1931	sub load_header_orig {
		1932	my ($self) = @_;
		1933
		1934	$self->load_header_from ($self->load_path)
		1935	}
		1936
		1937	sub load_header_temp {
		1938	my ($self) = @_;
		1939
		1940	$self->load_header_from ($self->save_path)
		1941	}
		1942
		1943	sub prepare_temp {
		1944	my ($self) = @_;
		1945
		1946	$self->last_access ((delete $self->{last_access})
		1947	|| $cf::RUNTIME); #d#
		1948	# safety
		1949	$self->{instantiate_time} = $cf::RUNTIME
		1950	if $self->{instantiate_time} > $cf::RUNTIME;
		1951	}
		1952
		1953	sub prepare_orig {
		1954	my ($self) = @_;
		1955
		1956	$self->{load_original} = 1;
		1957	$self->{instantiate_time} = $cf::RUNTIME;
		1958	$self->last_access ($cf::RUNTIME);
		1959	$self->instantiate;
		1960	}
		1961
		1962	sub load_header {
		1963	my ($self) = @_;
		1964
		1965	if ($self->load_header_temp) {
		1966	$self->prepare_temp;
796	} else {	1967	} else {
797	delete $COMMAND{$name};	1968	$self->load_header_orig
798	}	1969	or return;
		1970	$self->prepare_orig;
		1971	}
		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
		1976	$self->default_region (cf::region::find_by_path $self->{path})
		1977	unless $self->default_region;
		1978
799	}	1979	1
		1980	}
800		1981
801	# remove extcmds	1982	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1983	sub find {
803	delete $EXTCMD{$name};	1984	my ($path, $origin) = @_;
		1985
		1986	$path = normalise $path, $origin && $origin->path;
		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		1989	my $guard2 = cf::lock_acquire "map_find:$path";
		1990
		1991	$cf::MAP{$path} || do {
		1992	my $map = new_from_path cf::map $path
		1993	or return;
		1994
		1995	$map->{last_save} = $cf::RUNTIME;
		1996
		1997	$map->load_header
		1998	or return;
		1999
		2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2001	# doing this can freeze the server in a sync job, obviously
		2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
		2005	$map->reset;
		2006	return find $path;
		2007	}
		2008
		2009	$cf::MAP{$path} = $map
		2010	}
		2011	}
		2012
		2013	sub pre_load { }
		2014	sub post_load { }
		2015
		2016	sub load {
		2017	my ($self) = @_;
		2018
		2019	local $self->{deny_reset} = 1; # loading can take a long time
		2020
		2021	my $path = $self->{path};
		2022
804	}	2023	{
		2024	my $guard = cf::lock_acquire "map_data:$path";
805		2025
806	if (my $cb = $pkg->can ("unload")) {	2026	return unless $self->valid;
807	eval {	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
808	$cb->($pkg);	2028
		2029	$self->in_memory (cf::MAP_LOADING);
		2030
		2031	$self->alloc;
		2032
		2033	$self->pre_load;
		2034	cf::cede_to_tick;
		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
		2039	or return;
		2040
		2041	$self->post_load_original
		2042	if delete $self->{load_original};
		2043
		2044	if (my $uniq = $self->uniq_path) {
		2045	utf8::encode $uniq;
		2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
		2048	$self->clear_unique_items;
		2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
809	1	2052	}
810	} or warn "$pkg unloaded, but with errors: $@";	2053	}
811	}
812		2054
813	Symbol::delete_package $pkg;	2055	$f->resolve_delayed_derefs;
814	}
815		2056
816	sub load_extensions {	2057	cf::cede_to_tick;
817	for my $ext (<$LIBDIR/*.ext>) {	2058	# now do the right thing for maps
818	next unless -r $ext;	2059	$self->link_multipart_objects;
819	eval {	2060	$self->difficulty ($self->estimate_difficulty)
820	load_extension $ext;	2061	unless $self->difficulty;
821	1	2062	cf::cede_to_tick;
822	} or warn "$ext not loaded: $@";
823	}
824	}
825		2063
826	#############################################################################	2064	unless ($self->{deny_activate}) {
827	# load/save/clean perl data associated with a map	2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
		2069	$self->activate;
		2070	}
828		2071
829	*cf::mapsupport::on_clean = sub {	2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
		2075	$self->in_memory (cf::MAP_ACTIVE);
		2076	}
		2077
		2078	$self->post_load;
		2079	}
		2080
		2081	sub customise_for {
		2082	my ($self, $ob) = @_;
		2083
		2084	return find "~" . $ob->name . "/" . $self->{path}
		2085	if $self->per_player;
		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
		2090	$self
		2091	}
		2092
		2093	# find and load all maps in the 3x3 area around a map
		2094	sub load_neighbours {
830	my ($map) = @_;	2095	my ($map) = @_;
831		2096
832	my $path = $map->tmpname;	2097	my @neigh; # diagonal neighbours
833	defined $path or return;
834		2098
835	unlink "$path.pst";	2099	for (0 .. 3) {
836	};	2100	my $neigh = $map->tile_path ($_)
		2101	or next;
		2102	$neigh = find $neigh, $map
		2103	or next;
		2104	$neigh->load;
837		2105
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2106	push @neigh,
		2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2109	}
839		2110
840	#############################################################################	2111	for (grep defined $_->[0], @neigh) {
841	# load/save perl data associated with player->ob objects	2112	my ($path, $origin) = @$_;
842		2113	my $neigh = find $path, $origin
843	sub all_objects(@) {	2114	or next;
844	@_, map all_objects ($_->inv), @_	2115	$neigh->load;
		2116	}
845	}	2117	}
846		2118
847	# TODO: compatibility cruft, remove when no longer needed	2119	sub find_sync {
848	cf::player->attach (	2120	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		2121
852	for my $o (all_objects $pl->ob) {	2122	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2123	}
854	$o->set_ob_key_value ("_perl_data");
855		2124
856	%$o = %{ Storable::thaw pack "H*", $value };	2125	sub do_load_sync {
		2126	my ($map) = @_;
		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
		2131	cf::sync_job { $map->load };
		2132	}
		2133
		2134	our %MAP_PREFETCH;
		2135	our $MAP_PREFETCHER = undef;
		2136
		2137	sub find_async {
		2138	my ($path, $origin, $load) = @_;
		2139
		2140	$path = normalise $path, $origin && $origin->{path};
		2141
		2142	if (my $map = $cf::MAP{$path}) {
		2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2144	}
		2145
		2146	$MAP_PREFETCH{$path} |= $load;
		2147
		2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
		2151	while (%MAP_PREFETCH) {
		2152	while (my ($k, $v) = each %MAP_PREFETCH) {
		2153	if (my $map = find $k) {
		2154	$map->load if $v;
		2155	}
		2156
		2157	delete $MAP_PREFETCH{$k};
857	}	2158	}
858	}	2159	}
		2160	undef $MAP_PREFETCHER;
		2161	};
		2162	$MAP_PREFETCHER->prio (6);
		2163
		2164	()
		2165	}
		2166
		2167	sub save {
		2168	my ($self) = @_;
		2169
		2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2171
		2172	$self->{last_save} = $cf::RUNTIME;
		2173
		2174	return unless $self->dirty;
		2175
		2176	my $save = $self->save_path; utf8::encode $save;
		2177	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2178
		2179	$self->{load_path} = $save;
		2180
		2181	return if $self->{deny_save};
		2182
		2183	local $self->{last_access} = $self->last_access;#d#
		2184
		2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
		2187	$_->contr->save for $self->players;
		2188	};
		2189
		2190	cf::get_slot 0.02;
		2191
		2192	if ($uniq) {
		2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2195	} else {
		2196	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	2197	}
860	);	2198	}
861		2199
862	#############################################################################	2200	sub swap_out {
		2201	my ($self) = @_;
863		2202
864	=head2 CORE EXTENSIONS	2203	# save first because save cedes
		2204	$self->save;
865		2205
866	Functions and methods that extend core crossfire objects.	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
867		2207
868	=head3 cf::player	2208	return if $self->players;
		2209	return if $self->in_memory != cf::MAP_ACTIVE;
		2210	return if $self->{deny_save};
		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
		2216	$self->clear;
		2217	}
		2218
		2219	sub reset_at {
		2220	my ($self) = @_;
		2221
		2222	# TODO: safety, remove and allow resettable per-player maps
		2223	return 1e99 if $self->{deny_reset};
		2224
		2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2227
		2228	$time + $to
		2229	}
		2230
		2231	sub should_reset {
		2232	my ($self) = @_;
		2233
		2234	$self->reset_at <= $cf::RUNTIME
		2235	}
		2236
		2237	sub reset {
		2238	my ($self) = @_;
		2239
		2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2241
		2242	return if $self->players;
		2243
		2244	warn "resetting map ", $self->path, "\n";
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
		2255
		2256	delete $cf::MAP{$self->path};
		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
		2260	$self->clear;
		2261
		2262	$self->unlink_save;
		2263	$self->destroy;
		2264	}
		2265
		2266	my $nuke_counter = "aaaa";
		2267
		2268	sub nuke {
		2269	my ($self) = @_;
		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
		2274	delete $cf::MAP{$self->path};
		2275
		2276	$self->unlink_save;
		2277
		2278	bless $self, "cf::map";
		2279	delete $self->{deny_reset};
		2280	$self->{deny_save} = 1;
		2281	$self->reset_timeout (1);
		2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2283
		2284	$cf::MAP{$self->path} = $self;
		2285	}
		2286
		2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
		2324	}
		2325
		2326	=item cf::map::unique_maps
		2327
		2328	Returns an arrayref of paths of all shared maps that have
		2329	instantiated unique items. May block.
		2330
		2331	=cut
		2332
		2333	sub unique_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	s/\.map$//; # TODO future compatibility hack
		2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2339	? ()
		2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
		2342	]
		2343	}
		2344
		2345	=back
		2346
		2347	=head3 cf::object
		2348
		2349	=cut
		2350
		2351	package cf::object;
869		2352
870	=over 4	2353	=over 4
871		2354
872	=item cf::player::exists $login	2355	=item $ob->inv_recursive
873		2356
874	Returns true when the given account exists.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
875		2359
876	=cut	2360	=cut
877		2361
878	sub cf::player::exists($) {	2362	sub inv_recursive_;
879	cf::player::find $_[0]	2363	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2364	map { $_, inv_recursive_ $_->inv } @_
881	}	2365	}
882		2366
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2367	sub inv_recursive {
884		2368	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	2369	}
		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
		2399	package cf;
896		2400
897	=back	2401	=back
898		2402
899	=head3 cf::object::player	2403	=head3 cf::object::player
900		2404
…		…
905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
906	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
907	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
908		2412
909	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
910		2428
911	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
912	# with dialog boxes.	2430	# with dialog boxes.
913	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
914	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
916		2434
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2436
919	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
921	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
924	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
925	}	2462	}
926		2463
927	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
928		2465
929	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2475	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2476	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2477	: $cf::CFG{"may_$access"})
941	}	2478	}
942		2479
		2480	=item $player_object->enter_link
		2481
		2482	Freezes the player and moves him/her to a special map (C<{link}>).
		2483
		2484	The player should be reasonably safe there for short amounts of time (e.g.
		2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
		2488
		2489	Will never block.
		2490
		2491	=item $player_object->leave_link ($map, $x, $y)
		2492
		2493	Moves the player out of the special C<{link}> map onto the specified
		2494	map. If the map is not valid (or omitted), the player will be moved back
		2495	to the location he/she was before the call to C<enter_link>, or, if that
		2496	fails, to the emergency map position.
		2497
		2498	Might block.
		2499
		2500	=cut
		2501
		2502	sub link_map {
		2503	unless ($LINK_MAP) {
		2504	$LINK_MAP = cf::map::find "{link}"
		2505	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2506	$LINK_MAP->load;
		2507	}
		2508
		2509	$LINK_MAP
		2510	}
		2511
		2512	sub cf::object::player::enter_link {
		2513	my ($self) = @_;
		2514
		2515	$self->deactivate_recursive;
		2516
		2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2518
		2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2520	if $self->map && $self->map->{path} ne "{link}";
		2521
		2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2523	}
		2524
		2525	sub cf::object::player::leave_link {
		2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
		2529
		2530	my $link_pos = delete $self->{_link_pos};
		2531
		2532	unless ($map) {
		2533	# restore original map position
		2534	($map, $x, $y) = @{ $link_pos || [] };
		2535	$map = cf::map::find $map;
		2536
		2537	unless ($map) {
		2538	($map, $x, $y) = @$EMERGENCY_POSITION;
		2539	$map = cf::map::find $map
		2540	or die "FATAL: cannot load emergency map\n";
		2541	}
		2542	}
		2543
		2544	($x, $y) = (-1, -1)
		2545	unless (defined $x) && (defined $y);
		2546
		2547	# use -1 or undef as default coordinates, not 0, 0
		2548	($x, $y) = ($map->enter_x, $map->enter_y)
		2549	if $x <=0 && $y <= 0;
		2550
		2551	$map->load;
		2552	$map->load_neighbours;
		2553
		2554	return unless $self->contr->active;
		2555
		2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2557	$self->enter_map ($map, $x, $y);
		2558
		2559	# only activate afterwards, to support waiting in hooks
		2560	$self->activate_recursive;
		2561	}
		2562
		2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2564
		2565	Moves the player to the given map-path and coordinates by first freezing
		2566	her, loading and preparing them map, calling the provided $check callback
		2567	that has to return the map if sucecssful, and then unfreezes the player on
		2568	the new (success) or old (failed) map position. In either case, $done will
		2569	be called at the end of this process.
		2570
		2571	Note that $check will be called with a potentially non-loaded map, so if
		2572	it needs a loaded map it has to call C<< ->load >>.
		2573
		2574	=cut
		2575
		2576	our $GOTOGEN;
		2577
		2578	sub cf::object::player::goto {
		2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2583
		2584	$self->enter_link;
		2585
		2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
		2608	my $map = eval {
		2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
		2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
		2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
		2624	}
		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
		2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
		2632	})->prio (1);
		2633	}
		2634
		2635	=item $player_object->enter_exit ($exit_object)
		2636
		2637	=cut
		2638
		2639	sub parse_random_map_params {
		2640	my ($spec) = @_;
		2641
		2642	my $rmp = { # defaults
		2643	xsize => (cf::rndm 15, 40),
		2644	ysize => (cf::rndm 15, 40),
		2645	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2646	#layout => string,
		2647	};
		2648
		2649	for (split /\n/, $spec) {
		2650	my ($k, $v) = split /\s+/, $_, 2;
		2651
		2652	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2653	}
		2654
		2655	$rmp
		2656	}
		2657
		2658	sub prepare_random_map {
		2659	my ($exit) = @_;
		2660
		2661	# all this does is basically replace the /! path by
		2662	# a new random map path (?random/...) with a seed
		2663	# that depends on the exit object
		2664
		2665	my $rmp = parse_random_map_params $exit->msg;
		2666
		2667	if ($exit->map) {
		2668	$rmp->{region} = $exit->region->name;
		2669	$rmp->{origin_map} = $exit->map->path;
		2670	$rmp->{origin_x} = $exit->x;
		2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
		2674	}
		2675
		2676	$rmp->{random_seed} ||= $exit->random_seed;
		2677
		2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2679	my $md5 = Digest::MD5::md5_hex $data;
		2680	my $meta = "$RANDOMDIR/$md5.meta";
		2681
		2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2683	aio_write $fh, 0, (length $data), $data, 0;
		2684	undef $fh;
		2685	aio_rename "$meta~", $meta;
		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
		2690	$exit->slaying ("?random/$md5");
		2691	$exit->msg (undef);
		2692	}
		2693	}
		2694	}
		2695
		2696	sub cf::object::player::enter_exit {
		2697	my ($self, $exit) = @_;
		2698
		2699	return unless $self->type == cf::PLAYER;
		2700
		2701	$self->enter_link;
		2702
		2703	(async {
		2704	$Coro::current->{desc} = "enter_exit";
		2705
		2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
		2721	$self->goto ($map, $x, $y);
		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
		2727	1
		2728	}) {
		2729	$self->message ("Something went wrong deep within the deliantra server. "
		2730	. "I'll try to bring you back to the map you were before. "
		2731	. "Please report this to the dungeon master!",
		2732	cf::NDI_UNIQUE | cf::NDI_RED);
		2733
		2734	warn "ERROR in enter_exit: $@";
		2735	$self->leave_link;
		2736	}
		2737	})->prio (1);
		2738	}
		2739
943	=head3 cf::client	2740	=head3 cf::client
944		2741
945	=over 4	2742	=over 4
946		2743
947	=item $client->send_drawinfo ($text, $flags)	2744	=item $client->send_drawinfo ($text, $flags)
…		…
953		2750
954	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
956		2753
957	utf8::encode $text;	2754	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2756	}
960		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		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	}
961		2952
962	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
963		2954
964	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
965	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>,
966	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>.
967		2958
968	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
969	reliable at some point in the future.	2960	become reliable at some point in the future.
970		2961
971	=cut	2962	=cut
972		2963
973	sub cf::client::query {	2964	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	2973	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		2975
985	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
987	}	2980	}
988		2981
989	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
990	on_reply => sub {	2988	on_reply => sub {
991	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
992		2990
993	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
994	# get handled first	2992	# get handled first
995	my $queue = delete $ns->{query_queue};	2993	my $queue = delete $ns->{query_queue}
		2994	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2995
997	(shift @$queue)->[1]->($msg);	2996	(shift @$queue)->[1]->($msg);
		2997	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2998
999	push @{ $ns->{query_queue} }, @$queue;	2999	push @{ $ns->{query_queue} }, @$queue;
1000		3000
1001	if (@{ $ns->{query_queue} } == @$queue) {	3001	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	3002	if (@$queue) {
…		…
1004	} else {	3004	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	3006	}
1007	}	3007	}
1008	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($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	},
1009	);	3035	);
1010		3036
1011	=item $client->coro (\&cb)	3037	=item $client->async (\&cb)
1012		3038
1013	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	3040	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	3041	or loss of connection).
1016		3042
1017	=cut	3043	=cut
1018		3044
1019	sub cf::client::coro {	3045	sub cf::client::async {
1020	my ($self, $cb) = @_;	3046	my ($self, $cb) = @_;
1021		3047
1022	my $coro; $coro = async {	3048	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		3049
1029	$coro->on_destroy (sub {	3050	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	3051	delete $self->{_coro}{$coro+0};
1031	});	3052	});
1032		3053
…		…
1059	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
1061		3082
1062	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
1063		3084
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
1065		3090
1066	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
1067		3092
1068	=pod	3093	=pod
1069		3094
1070	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
1071		3096
1072	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
1073	cf::object::player player	3102	cf::object::player
1074	cf::player peaceful	3103	player
1075	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
1076		3110
1077	=cut	3111	=cut
1078		3112
1079	for (	3113	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
1081	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
1083	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
1084	) {	3120	) {
1085	no strict 'refs';	3121	no strict 'refs';
1086	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1104	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
1105		3141
1106	my $qcode = $code;	3142	my $qcode = $code;
1107	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1108	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
1109		3147
1110	local $_;	3148	local $_;
1111	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
1112		3150
1113	my $eval =	3151	my $eval =
…		…
1156	=back	3194	=back
1157		3195
1158	=cut	3196	=cut
1159		3197
1160	#############################################################################	3198	#############################################################################
		3199	# the server's init and main functions
1161		3200
1162	=head2 EXTENSION DATABASE SUPPORT	3201	sub load_facedata($) {
		3202	my ($path) = @_;
1163		3203
1164	Crossfire maintains a very simple database for extension use. It can	3204	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	3205	# for this (global event?)
1166	excludes objects.	3206	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		3207
1168	The parameter C<$family> should best start with the name of the extension	3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		3209
1171	=over 4	3210	warn "loading facedata from $path\n";
1172		3211
1173	=item $hashref = cf::db_get $family	3212	my $facedata;
		3213	0 < aio_load $path, $facedata
		3214	or die "$path: $!";
1174		3215
1175	Return a hashref for use by the extension C<$family>, which can be	3216	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		3217
1179	=item $value = cf::db_get $family => $key	3218	$facedata->{version} == 2
		3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		3220
1181	Returns a single value from the database	3221	# patch in the exptable
1182		3222	$facedata->{resource}{"res/exp_table"} = {
1183	=item cf::db_put $family => $hashref	3223	type => FT_RSRC,
1184		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187
1188	=item cf::db_put $family => $key => $value
1189
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200
1201	=cut
1202
1203	our $DB;
1204
1205	{
1206	my $path = cf::localdir . "/database.pst";
1207
1208	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };
1211	}
1212
1213	my $pid;
1214
1215	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});	3225	};
		3226	cf::cede_to_tick;
1236		3227
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	3228	{
		3229	my $faces = $facedata->{faceinfo};
1241		3230
1242	sub db_get($;$) {	3231	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		3233
1248	sub db_put($$;$) {	3234	cf::face::set_visibility $idx, $info->{visibility};
1249	if (@_ >= 3) {	3235	cf::face::set_magicmap $idx, $info->{magicmap};
1250	$DB->{$_[0]}{$_[1]} = $_[2];	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1251	} else {	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		3238
1257	cf::global->attach (	3239	cf::cede_to_tick;
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	3240	}
		3241
		3242	while (my ($face, $info) = each %$faces) {
		3243	next unless $info->{smooth};
		3244
		3245	my $idx = cf::face::find $face
		3246	or next;
		3247
		3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
		3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3251	} else {
		3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3253	}
		3254
		3255	cf::cede_to_tick;
		3256	}
		3257	}
		3258
		3259	{
		3260	my $anims = $facedata->{animinfo};
		3261
		3262	while (my ($anim, $info) = each %$anims) {
		3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3264	cf::cede_to_tick;
		3265	}
		3266
		3267	cf::anim::invalidate_all; # d'oh
		3268	}
		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
		3305	1
		3306	}
		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
		3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
		3360	sub reload_facedata {
		3361	load_facedata "$DATADIR/facedata"
		3362	or die "unable to load facedata\n";
		3363	}
		3364
		3365	sub reload_archetypes {
		3366	load_resource_file "$DATADIR/archetypes"
		3367	or die "unable to load archetypes\n";
		3368	}
		3369
		3370	sub reload_treasures {
		3371	load_resource_file "$DATADIR/treasures"
		3372	or die "unable to load treasurelists\n";
		3373	}
		3374
		3375	sub reload_resources {
		3376	warn "reloading resource files...\n";
		3377
		3378	reload_facedata;
		3379	reload_archetypes;
		3380	reload_regions;
		3381	reload_treasures;
		3382
		3383	warn "finished reloading resource files\n";
		3384	}
		3385
		3386	sub reload_config {
		3387	open my $fh, "<:utf8", "$CONFDIR/config"
		3388	or return;
		3389
		3390	local $/;
		3391	*CFG = YAML::Load <$fh>;
		3392
		3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3394
		3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3397
		3398	if (exists $CFG{mlockall}) {
		3399	eval {
		3400	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3401	and die "WARNING: m(un)lockall failed: $!\n";
		3402	};
		3403	warn $@ if $@;
		3404	}
		3405	}
		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
		3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
		3450	# we must not ever block the main coroutine
		3451	local $Coro::idle = sub {
		3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3453	(async {
		3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
		3456	})->prio (Coro::PRIO_MAX);
1262	);	3457	};
		3458
		3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
		3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
		3477	load_extensions;
		3478
		3479	utime time, time, $RUNTIMEFILE;
		3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
1263	}	3489	}
1264		3490
1265	#############################################################################	3491	#############################################################################
1266	# the server's main()	3492	# initialisation and cleanup
1267		3493
1268	sub cfg_load {	3494	# install some emergency cleanup handlers
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3495	BEGIN {
		3496	our %SIGWATCHER = ();
		3497	for my $signal (qw(INT HUP TERM)) {
		3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3499	cf::cleanup "SIG$signal";
		3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
1270	or return;	3513	or return;
1271		3514
1272	local $/;	3515	my $value = $cf::RUNTIME + 90 + 10;
1273	*CFG = YAML::Syck::Load <$fh>;	3516	# 10 is the runtime save interval, for a monotonic clock
1274	}	3517	# 60 allows for the watchdog to kill the server.
1275		3518
1276	sub main {	3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1277	cfg_load;	3520	and return;
1278	db_load;
1279	load_extensions;
1280	Event::loop;
1281	}
1282		3521
1283	#############################################################################	3522	# always fsync - this file is important
1284	# initialisation	3523	aio_fsync $fh
		3524	and return;
1285		3525
1286	sub _perl_reload() {	3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
		3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
		3588	}
		3589
		3590	sub emergency_save() {
		3591	my $freeze_guard = cf::freeze_mainloop;
		3592
		3593	warn "emergency_perl_save: enter\n";
		3594
		3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
		3601	# use a peculiar iteration method to avoid tripping on perl
		3602	# refcount bugs in for. also avoids problems with players
		3603	# and maps saved/destroyed asynchronously.
		3604	warn "emergency_perl_save: begin player save\n";
		3605	for my $login (keys %cf::PLAYER) {
		3606	my $pl = $cf::PLAYER{$login} or next;
		3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3609	$pl->save;
		3610	}
		3611	warn "emergency_perl_save: end player save\n";
		3612
		3613	warn "emergency_perl_save: begin map save\n";
		3614	for my $path (keys %cf::MAP) {
		3615	my $map = $cf::MAP{$path} or next;
		3616	$map->valid or next;
		3617	$map->save;
		3618	}
		3619	warn "emergency_perl_save: end map save\n";
		3620
		3621	warn "emergency_perl_save: begin database checkpoint\n";
		3622	BDB::db_env_txn_checkpoint $DB_ENV;
		3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
		3628	};
		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
		3635	warn "emergency_perl_save: leave\n";
		3636	}
		3637
		3638	sub post_cleanup {
		3639	my ($make_core) = @_;
		3640
		3641	warn Carp::longmess "post_cleanup backtrace"
		3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
		3672	}
		3673
		3674	sub do_reload_perl() {
1287	# can/must only be called in main	3675	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3677	warn "can only reload from main coroutine";
1290	return;	3678	return;
1291	}	3679	}
1292		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
1293	warn "reloading...";	3686	warn "reloading...";
1294		3687
1295	local $FREEZE = 1;	3688	warn "entering sync_job";
		3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
1296	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
1297		3694
1298	eval {	3695	warn "syncing database to disk";
		3696	BDB::db_env_txn_checkpoint $DB_ENV;
		3697
1299	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
1300		3699
1301	# cancel all watchers	3700	warn "flushing outstanding aio requests";
1302	for (Event::all_watchers) {	3701	while (IO::AIO::nreqs || BDB::nreqs) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
1304	}
1305
1306	# cancel all extension coros
1307	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();
1309
1310	# unload all extensions
1311	for (@exts) {
1312	warn "unloading <$_>";
1313	unload_extension $_;
1314	}
1315
1316	# unload all modules loaded from $LIBDIR
1317	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319
1320	warn "removing <$k>";
1321	delete $INC{$k};
1322
1323	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;
1325
1326	if (my $cb = $k->can ("unload_module")) {
1327	$cb->();
1328	}	3703	}
1329		3704
1330	Symbol::delete_package $k;	3705	warn "cancelling all extension coros";
		3706	$_->cancel for values %EXT_CORO;
		3707	%EXT_CORO = ();
		3708
		3709	warn "removing commands";
		3710	%COMMAND = ();
		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
		3718	warn "... unloading $pkg";
		3719
		3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
		3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
1331	}	3729	}
1332		3730
1333	# sync database to disk	3731	warn "unloading all perl modules loaded from $LIBDIR";
1334	cf::db_sync;	3732	while (my ($k, $v) = each %INC) {
1335	IO::AIO::flush;	3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1336		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
		3746	}
		3747
1337	# get rid of safe::, as good as possible	3748	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3751
1341	# remove register_script_function callbacks	3752	warn "unloading cf.pm \"a bit\"";
1342	# TODO
1343
1344	# unload cf.pm "a bit"
1345	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1346		3755
1347	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3757	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
1350		3759
1351	# reload cf.pm	3760	warn "unload completed, starting to reload now";
		3761
1352	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
1353	require cf;	3763	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		3765
1356	# load config and database again	3766	warn "loading config and database again";
1357	cf::cfg_load;	3767	cf::reload_config;
1358	cf::db_load;
1359		3768
1360	# load extensions
1361	warn "load extensions";	3769	warn "loading extensions";
1362	cf::load_extensions;	3770	cf::load_extensions;
1363		3771
1364	# reattach attachments to objects	3772	if ($REATTACH_ON_RELOAD) {
		3773	warn "reattaching attachments to objects/players";
		3774	_global_reattach; # objects, sockets
		3775	warn "reattaching attachments to maps";
		3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
		3784	warn "leaving sync_job";
		3785
		3786	1
		3787	} or do {
		3788	warn $@;
		3789	cf::cleanup "error while reloading, exiting.";
		3790	};
		3791
1365	warn "reattach";	3792	warn "reloaded";
1366	_global_reattach;	3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
		3798	};
		3799
		3800	our $RELOAD_WATCHER; # used only during reload
		3801
		3802	sub reload_perl() {
		3803	# doing reload synchronously and two reloads happen back-to-back,
		3804	# coro crashes during coro_state_free->destroy here.
		3805
		3806	$RELOAD_WATCHER ||= cf::async {
		3807	Coro::AIO::aio_wait cache_extensions;
		3808
		3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3810	do_reload_perl;
		3811	undef $RELOAD_WATCHER;
		3812	};
1367	};	3813	};
		3814	}
1368		3815
1369	if ($@) {	3816	register_command "reload" => sub {
1370	warn $@;	3817	my ($who, $arg) = @_;
1371	warn "error while reloading, exiting.";
1372	exit 1;
1373	}
1374		3818
1375	warn "reloaded successfully";	3819	if ($who->flag (FLAG_WIZ)) {
		3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
		3823	reload_perl;
		3824	};
		3825	}
1376	};	3826	};
1377		3827
1378	sub perl_reload() {
1379	_perl_reload;
1380	}
1381
1382	register "<global>", __PACKAGE__;
1383
1384	register_command "perl-reload" => sub {
1385	my ($who, $arg) = @_;
1386
1387	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");
1389	_perl_reload;
1390	}
1391	};
1392
1393	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
1394		3829
1395	$TICK_WATCHER = Event->timer (	3830	my $bug_warning = 0;
1396	reentrant => 0,	3831
1397	prio => 0,	3832	our @WAIT_FOR_TICK;
1398	at => $NEXT_TICK || $TICK,	3833	our @WAIT_FOR_TICK_BEGIN;
1399	data => WF_AUTOCANCEL,	3834
1400	cb => sub {	3835	sub wait_for_tick {
1401	unless ($FREEZE) {	3836	return if tick_inhibit || $Coro::current == $Coro::main;
		3837
		3838	my $signal = new Coro::Signal;
		3839	push @WAIT_FOR_TICK, $signal;
		3840	$signal->wait;
		3841	}
		3842
		3843	sub wait_for_tick_begin {
		3844	return if tick_inhibit || $Coro::current == $Coro::main;
		3845
		3846	my $signal = new Coro::Signal;
		3847	push @WAIT_FOR_TICK_BEGIN, $signal;
		3848	$signal->wait;
		3849	}
		3850
		3851	sub tick {
		3852	if ($Coro::current != $Coro::main) {
		3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3854	unless ++$bug_warning > 10;
		3855	return;
		3856	}
		3857
1402	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	3859
		3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
		3864	write_runtime_sync
		3865	or warn "ERROR: unable to write runtime file: $!";
1404	}	3866	};
1405
1406	$NEXT_TICK += $TICK;
1407
1408	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410
1411	$TICK_WATCHER->at ($NEXT_TICK);
1412	$TICK_WATCHER->start;
1413	},	3867	}
1414	);
1415		3868
		3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3870	$sig->send;
		3871	}
		3872	while (my $sig = shift @WAIT_FOR_TICK) {
		3873	$sig->send;
		3874	}
		3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
		3887
		3888	{
		3889	# configure BDB
		3890
		3891	BDB::min_parallel 8;
		3892	BDB::max_poll_reqs $TICK * 0.1;
		3893	$AnyEvent::BDB::WATCHER->priority (1);
		3894
		3895	unless ($DB_ENV) {
		3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3902
		3903	cf::sync_job {
		3904	eval {
		3905	BDB::db_env_open
		3906	$DB_ENV,
		3907	$BDBDIR,
		3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3910	0666;
		3911
		3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3913	};
		3914
		3915	cf::cleanup "db_env_open(db): $@" if $@;
		3916	};
		3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
		3928	}
		3929
		3930	{
		3931	# configure IO::AIO
		3932
		3933	IO::AIO::min_parallel 8;
1416	IO::AIO::max_poll_time $TICK * 0.2;	3934	IO::AIO::max_poll_time $TICK * 0.1;
		3935	undef $AnyEvent::AIO::WATCHER;
		3936	}
1417		3937
1418	Event->io (fd => IO::AIO::poll_fileno,	3938	my $_log_backtrace;
1419	poll => 'r',
1420	prio => 5,
1421	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);
1423		3939
1424	# we must not ever block the main coroutine	3940	sub _log_backtrace {
1425	$Coro::idle = sub {	3941	my ($msg, @addr) = @_;
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3942
1427	warn "FATAL: Coro::idle was called, major BUG\n";	3943	$msg =~ s/\n//;
1428	(Coro::unblock_sub {	3944
1429	Event::one_event;	3945	# limit the # of concurrent backtraces
1430	})->();	3946	if ($_log_backtrace < 2) {
1431	};	3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
		3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
		3982
		3983	END { cf::emergency_save }
1432		3984
1433	1	3985	1
1434		3986

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