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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 1.513 by root, Mon Apr 12 05:22:38 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
20	use Fcntl;	58	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
23	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
24		64
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
26		66
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
28	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29		71
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
31		80
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		82
34	our %COMMAND = ();	83	our %COMMAND = ();
35	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
37		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
38	our @EVENT;	93	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
40		96
41	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
42	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	118	our $NEXT_TICK;
44	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
45		127
46	our %CFG;	128	our %CFG;
47		129
48	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
50		133
51	our %MAP; # all maps	134	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	135	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	136	our $LINK_MAP; # the special {link} map, which is always available
		137
		138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
54		150
55	binmode STDOUT;	151	binmode STDOUT;
56	binmode STDERR;	152	binmode STDERR;
57		153
58	# read virtual server time, if available	154	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
63	}	159	}
64		160
65	mkdir cf::localdir;	161	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		162
70	our %EXT_CORO;	163	mkdir $_
		164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		165
		166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
71		180
72	#############################################################################	181	#############################################################################
73		182
74	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
75		184
…		…
82	=item $cf::RUNTIME	191	=item $cf::RUNTIME
83		192
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	194	every server tick.
86		195
87	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		199
89	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
91		204
92	=item $cf::NOW	205	=item $cf::NOW
93		206
94	The time of the last (current) server tick.	207	The time of the last (current) server tick.
95		208
96	=item $cf::TICK	209	=item $cf::TICK
97		210
98	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
99		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
100	=item %cf::CFG	223	=item %cf::CFG
101		224
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	226	from wherever your confdir points to.
104		227
		228	=item cf::wait_for_tick, cf::wait_for_tick_begin
		229
		230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		231	returns directly I<after> the tick processing (and consequently, can only wake one process
		232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
105	=back	246	=back
106		247
107	=cut	248	=cut
108		249
109	BEGIN {	250	$Coro::State::WARNHOOK = sub {
110	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	251	my $msg = join "", @_;
112	utf8::encode $msg;
113		252
114	$msg .= "\n"	253	$msg .= "\n"
115	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
116		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
117	LOG llevError, "cfperl: $msg";	258	LOG llevError, $msg;
118	};	259	};
119	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
120		274
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		282
128	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	284	# within the Safe compartment.
130	for my $pkg (qw(	285	for my $pkg (qw(
131	cf::global cf::attachable	286	cf::global cf::attachable
132	cf::object cf::object::player	287	cf::object cf::object::player
133	cf::client cf::player	288	cf::client cf::player
134	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
135	cf::map cf::party cf::region	291	cf::party cf::region
136	)) {	292	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	294	}
140		295
141	$Event::DIED = sub {	296	$EV::DIED = sub {
142	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
143	};	298	};
144		299
145	my %ext_pkg;	300	#############################################################################
146	my @exts;
147	my @hook;
148		301
149	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
150		303
151	=over 4	304	=over 4
152		305
153	=cut	306	=item dumpval $ref
154		307
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	308	=cut
156		309
		310	sub dumpval {
		311	eval {
		312	local $SIG{__DIE__};
		313	my $d;
		314	if (1) {
		315	$d = new Data::Dumper([$_[0]], ["*var"]);
		316	$d->Terse(1);
		317	$d->Indent(2);
		318	$d->Quotekeys(0);
		319	$d->Useqq(1);
		320	#$d->Bless(...);
		321	$d->Seen($_[1]) if @_ > 1;
		322	$d = $d->Dump();
		323	}
		324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		325	$d
		326	} || "[unable to dump $_[0]: '$@']";
		327	}
		328
157	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
158		330
159	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
160		332
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
169		334
170	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
171		336
172	=cut	337	=cut
173		338
174	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
176	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
177	}	356	}
		357
		358	=item cf::lock_wait $string
		359
		360	Wait until the given lock is available. See cf::lock_acquire.
		361
		362	=item my $lock = cf::lock_acquire $string
		363
		364	Wait until the given lock is available and then acquires it and returns
		365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		366	for example when the coroutine gets canceled), the lock is automatically
		367	returned.
		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
		372	Lock names should begin with a unique identifier (for example, cf::map::find
		373	uses map_find and cf::map::load uses map_load).
		374
		375	=item $locked = cf::lock_active $string
		376
		377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
		382
		383	sub lock_wait($) {
		384	$LOCKS->wait ($_[0]);
		385	}
		386
		387	sub lock_acquire($) {
		388	$LOCKS->guard ($_[0])
		389	}
		390
		391	sub lock_active($) {
		392	$LOCKS->count ($_[0]) < 1
		393	}
		394
		395	sub freeze_mainloop {
		396	tick_inhibit_inc;
		397
		398	&Guard::guard (\&tick_inhibit_dec);
		399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
		465	}
		466	};
		467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
		481	}
		482
		483	=item cf::async { BLOCK }
		484
		485	Currently the same as Coro::async_pool, meaning you cannot use
		486	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		487	thing you are allowed to do is call C<prio> on it.
		488
		489	=cut
		490
		491	BEGIN { *async = \&Coro::async_pool }
178		492
179	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
180		494
181	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
184		499
185	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
188	fast or be very important.	503	fast or be very important.
…		…
190	=cut	505	=cut
191		506
192	sub sync_job(&) {	507	sub sync_job(&) {
193	my ($job) = @_;	508	my ($job) = @_;
194		509
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 == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
		513	# this is the main coro, too bad, we have to block
		514	# till the operation succeeds, freezing the server :/
		515
		516	LOG llevError, Carp::longmess "sync job";#d#
		517
		518	my $freeze_guard = freeze_mainloop;
		519
		520	my $busy = 1;
		521	my @res;
		522
		523	(async {
		524	$Coro::current->desc ("sync job coro");
		525	@res = eval { $job->() };
		526	warn $@ if $@;
		527	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
		529
209	while ($busy) {	530	while ($busy) {
		531	if (Coro::nready) {
210	Coro::cede_notself;	532	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
212	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
		541
		542	wantarray ? @res : $res[0]
213	} else {	543	} else {
214	$coro->join;	544	# we are in another coroutine, how wonderful, everything just works
		545
		546	$job->()
215	}	547	}
216
217	wantarray ? @res : $res[0]
218	}	548	}
219		549
220	=item $coro = cf::coro { BLOCK }	550	=item $coro = cf::async_ext { BLOCK }
221		551
222	Creates and returns a new coro. This coro is automcatially being canceled	552	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	553	extension calling this is being unloaded.
224		554
225	=cut	555	=cut
226		556
227	sub coro(&) {	557	sub async_ext(&) {
228	my $cb = shift;	558	my $cb = shift;
229		559
230	my $coro; $coro = async {	560	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		561
237	$coro->on_destroy (sub {	562	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	563	delete $EXT_CORO{$coro+0};
239	});	564	});
240	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
241		566
242	$coro	567	$coro
243	}	568	}
244		569
		570	=item fork_call { }, $args
		571
		572	Executes the given code block with the given arguments in a seperate
		573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
		576
		577	=cut
		578
		579	sub fork_call(&@) {
		580	my ($cb, @args) = @_;
		581
		582	# we seemingly have to make a local copy of the whole thing,
		583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
		585
		586	my @res = Coro::Util::fork_eval {
		587	reset_signals;
		588	&$cb
		589	}, @args;
		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	=item $coin = coin_from_name $name
		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
		648	};
		649	cf::cleanup "db_open(db): $@" if $@;
		650
		651	$db
		652	}
		653
		654	our $DB;
		655
		656	sub db_init {
		657	cf::sync_job {
		658	$DB ||= db_table "db";
		659	};
		660	}
		661
		662	sub db_get($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
		670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
		746	}
		747
		748	=item cf::datalog type => key => value, ...
		749
		750	Log a datalog packet of the given type with the given key-value pairs.
		751
		752	=cut
		753
		754	sub datalog($@) {
		755	my ($type, %kv) = @_;
		756	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		757	}
		758
245	=back	759	=back
246		760
247	=cut	761	=cut
248		762
249	#############################################################################	763	#############################################################################
250		764
251	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
252		766
253	Many objects in crossfire are so-called attachable objects. That means you can	767	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")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
256		770
257	In the following description, CLASS can be any of C<global>, C<object>	771	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	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	773	Deliantra).
260		774
261	=over 4	775	=over 4
262		776
263	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
264		778
…		…
308	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
309		823
310	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
311	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
312		826
313	Some classes such as crossfire maps and objects can specify attachments	827	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.	828	that are attached at load/instantiate time, thus the need for a name.
315		829
316	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
317		831
318	=over 4	832	=over 4
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	892	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	893	our @CB_MAP = ();
380		894
381	my %attachment;	895	my %attachment;
382		896
		897	sub cf::attachable::thawer_merge {
		898	# simply override everything except _meta
		899	local $_[0]{_meta};
		900	%{$_[0]} = %{$_[1]};
		901	}
		902
383	sub _attach_cb($$$$) {	903	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	904	my ($registry, $event, $prio, $cb) = @_;
385		905
386	use sort 'stable';	906	use sort 'stable';
387		907
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
422		942
423	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		947
428	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	949	my $pkg = shift @arg;
430		950
431	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
461	}	981	}
462		982
463	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
464	} else {	984	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	986	}
467		987
468	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
469	}	989	}
470		990
…		…
472	if (ref $_[0]) {	992	if (ref $_[0]) {
473	_object_attach @_;	993	_object_attach @_;
474	} else {	994	} else {
475	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
476	}	996	}
		997	_recalc_want;
477	};	998	};
478		999
479	# all those should be optimised	1000	# all those should be optimised
480	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
485	reattach ($obj);	1006	reattach ($obj);
486	} else {	1007	} else {
487	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
488	}	1009	}
		1010	_recalc_want;
489	};	1011	};
490		1012
491	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
493		1015
…		…
508	";	1030	";
509	die if $@;	1031	die if $@;
510	}	1032	}
511		1033
512	our $override;	1034	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		1036
515	sub override {	1037	sub override {
516	$override = 1;	1038	$override = 1;
517	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
518	}	1040	}
519		1041
520	sub do_invoke {	1042	sub do_invoke {
521	my $event = shift;	1043	my $event = shift;
522	my $callbacks = shift;	1044	my $callbacks = shift;
523		1045
524	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
525		1047
526	local $override;	1048	local $override;
527		1049
528	for (@$callbacks) {	1050	for (@$callbacks) {
529	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
538	}	1060	}
539		1061
540	0	1062	0
541	}	1063	}
542		1064
543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
544		1066
545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
546		1068
547	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
548		1070
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	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	1072	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		1074
553	=back	1075	=back
554		1076
555	=cut	1077	=cut
556		1078
557	#############################################################################	1079	#############################################################################
558	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
559		1123
560	sub reattach {	1124	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	1126	my ($obj) = @_;
		1127
		1128	# no longer needed after getting rid of delete_package?
		1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		1130
564	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
565		1132
566	@$registry = ();	1133	@$registry = ();
567		1134
…		…
582	cf::attachable->attach (	1149	cf::attachable->attach (
583	prio => -1000000,	1150	prio => -1000000,
584	on_instantiate => sub {	1151	on_instantiate => sub {
585	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
586		1153
587	$data = from_json $data;	1154	$data = decode_json $data;
588		1155
589	for (@$data) {	1156	for (@$data) {
590	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
591		1158
592	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
608	sub object_freezer_save {	1175	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
610		1177
611	sync_job {	1178	sync_job {
612	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
613	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
615		1183
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 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;
619	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
620	close $fh;	1191	aio_close $fh;
621		1192
622	if (@$objs) {	1193	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
627	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
628	close $fh;	1202	aio_close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
630	}	1204	}
631	} else {	1205	} else {
632	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
633	}	1207	}
634		1208
635	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
636	} else {	1213	} else {
637	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
638	}	1215	}
639	} else {	1216	} else {
640	aio_unlink $filename;	1217	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
642	}	1219	}
643	}	1220	};
644	}	1221	}
645		1222
646	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
648		1225
…		…
660	or return;	1237	or return;
661		1238
662	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
664	or return;	1241	or return;
		1242
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
666	}	1245	}
667		1246
		1247	utf8::decode (my $decname = $filename);
		1248	warn sprintf "loading %s (%d,%d)\n",
		1249	$decname, length $data, scalar @{$av || []};
		1250
668	return ($data, $av);	1251	($data, $av)
669	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
670		1259
671	#############################################################################	1260	#############################################################################
672	# command handling &c	1261	# command handling &c
673		1262
674	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1277	}
689		1278
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1280
692	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
693		1286
694	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
695	called.	1288	called.
696		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
697	=cut	1301	=cut
698		1302
699	sub register_extcmd {	1303	sub register_extcmd {
700	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
701		1305
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1306	$EXTCMD{$name} = $cb;
706	}	1307	}
		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
707		1316
708	cf::player->attach (	1317	cf::player->attach (
709	on_command => sub {	1318	on_unknown_command => sub {
710	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
711		1320
712	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
713	or return;	1322	or return;
714		1323
…		…
719	cf::override;	1328	cf::override;
720	},	1329	},
721	on_extcmd => sub {	1330	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
723		1332
724	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1334
726	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
732	} else {	1350	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1352	}
735		1353
736	cf::override;	1354	cf::override;
737	},	1355	},
738	);	1356	);
739		1357
740	sub register {	1358	# "readahead" all extensions
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	1359	sub cache_extensions {
747	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
748		1361
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
750	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
751	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754
755	warn "loading '$path' into '$pkg'\n";
756
757	open my $fh, "<:utf8", $path
758	or die "$path: $!";
759
760	my $source =
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765
766	eval $source
767	or die $@ ? "$path: $@\n"
768	: "extension disabled.\n";
769
770	push @exts, $pkg;
771	$ext_pkg{$base} = $pkg;
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	# }
789
790	# remove commands
791	for my $name (keys %COMMAND) {
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
793
794	if (@cb) {
795	$COMMAND{$name} = \@cb;
796	} else {
797	delete $COMMAND{$name};
798	}	1365	}
799	}	1366	};
800		1367
801	# remove extcmds	1368	$grp
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
803	delete $EXTCMD{$name};
804	}
805
806	if (my $cb = $pkg->can ("unload")) {
807	eval {
808	$cb->($pkg);
809	1
810	} or warn "$pkg unloaded, but with errors: $@";
811	}
812
813	Symbol::delete_package $pkg;
814	}	1369	}
815		1370
816	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
817	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	1376	next unless -r $path;
819	eval {	1377
820	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
821	1	1438	}
822	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
823	}	1449	};
824	}	1450	}
825		1451
826	#############################################################################	1452	#############################################################################
827	# load/save/clean perl data associated with a map
828		1453
829	*cf::mapsupport::on_clean = sub {	1454	=back
		1455
		1456	=head2 CORE EXTENSIONS
		1457
		1458	Functions and methods that extend core deliantra objects.
		1459
		1460	=cut
		1461
		1462	package cf::player;
		1463
		1464	use Coro::AIO;
		1465
		1466	=head3 cf::player
		1467
		1468	=over 4
		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
		1483
		1484	=item cf::player::find $login
		1485
		1486	Returns the given player object, loading it if necessary (might block).
		1487
		1488	=cut
		1489
		1490	sub playerdir($) {
		1491	"$PLAYERDIR/"
		1492	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1493	}
		1494
		1495	sub path($) {
		1496	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1497
		1498	(playerdir $login) . "/playerdata"
		1499	}
		1500
		1501	sub find_active($) {
		1502	$cf::PLAYER{$_[0]}
		1503	and $cf::PLAYER{$_[0]}->active
		1504	and $cf::PLAYER{$_[0]}
		1505	}
		1506
		1507	sub exists($) {
830	my ($map) = @_;	1508	my ($login) = @_;
831		1509
832	my $path = $map->tmpname;	1510	$cf::PLAYER{$login}
833	defined $path or return;	1511	or !aio_stat path $login
834
835	unlink "$path.pst";
836	};
837
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);
839
840	#############################################################################
841	# load/save perl data associated with player->ob objects
842
843	sub all_objects(@) {
844	@_, map all_objects ($_->inv), @_
845	}	1512	}
846		1513
847	# TODO: compatibility cruft, remove when no longer needed	1514	sub find($) {
		1515	return $cf::PLAYER{$_[0]} || do {
		1516	my $login = $_[0];
		1517
		1518	my $guard = cf::lock_acquire "user_find:$login";
		1519
		1520	$cf::PLAYER{$_[0]} || do {
		1521	# rename old playerfiles to new ones
		1522	#TODO: remove when no longer required
		1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1526	aio_unlink +(playerdir $login) . "/$login.pl";
		1527
		1528	my $f = new_from_file cf::object::thawer path $login
		1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
		1536	$cf::PLAYER{$login} = $pl
		1537	}
		1538	}
		1539	}
		1540
848	cf::player->attach (	1541	cf::player->attach (
849	on_load => sub {	1542	on_load => sub {
850	my ($pl, $path) = @_;	1543	my ($pl, $path) = @_;
851		1544
852	for my $o (all_objects $pl->ob) {	1545	# restore slots saved in save, below
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1546	my $slots = delete $pl->{_slots};
854	$o->set_ob_key_value ("_perl_data");
855		1547
856	%$o = %{ Storable::thaw pack "H*", $value };	1548	$pl->ob->current_weapon ($slots->[0]);
857	}	1549	$pl->combat_ob ($slots->[1]);
858	}	1550	$pl->ranged_ob ($slots->[2]);
859	},	1551	},
860	);	1552	);
861		1553
862	#############################################################################	1554	sub save($) {
		1555	my ($pl) = @_;
863		1556
864	=head2 CORE EXTENSIONS	1557	return if $pl->{deny_save};
865		1558
866	Functions and methods that extend core crossfire objects.	1559	my $path = path $pl;
		1560	my $guard = cf::lock_acquire "user_save:$path";
867		1561
868	=head3 cf::player	1562	return if $pl->{deny_save};
		1563
		1564	aio_mkdir playerdir $pl, 0770;
		1565	$pl->{last_save} = $cf::RUNTIME;
		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
		1572	$pl->save_pl ($path);
		1573	cf::cede_to_tick;
		1574	}
		1575
		1576	sub new($) {
		1577	my ($login) = @_;
		1578
		1579	my $self = create;
		1580
		1581	$self->ob->name ($login);
		1582	$self->{deny_save} = 1;
		1583
		1584	$cf::PLAYER{$login} = $self;
		1585
		1586	$self
		1587	}
		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
		1599	=item $pl->quit_character
		1600
		1601	Nukes the player without looking back. If logged in, the connection will
		1602	be destroyed. May block for a long time.
		1603
		1604	=cut
		1605
		1606	sub quit_character {
		1607	my ($pl) = @_;
		1608
		1609	my $name = $pl->ob->name;
		1610
		1611	$pl->{deny_save} = 1;
		1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1613
		1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
		1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1619	$pl->ns->destroy if $pl->ns;
		1620
		1621	my $path = playerdir $pl;
		1622	my $temp = "$path~$cf::RUNTIME~deleting~";
		1623	aio_rename $path, $temp;
		1624	delete $cf::PLAYER{$pl->ob->name};
		1625	$pl->destroy;
		1626
		1627	my $prefix = qr<^~\Q$name\E/>;
		1628
		1629	# nuke player maps
		1630	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1631
		1632	IO::AIO::aio_rmtree $temp;
		1633	}
		1634
		1635	=item $pl->kick
		1636
		1637	Kicks a player out of the game. This destroys the connection.
		1638
		1639	=cut
		1640
		1641	sub kick {
		1642	my ($pl, $kicker) = @_;
		1643
		1644	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1645	$pl->killer ("kicked");
		1646	$pl->ns->destroy;
		1647	}
		1648
		1649	=item cf::player::list_logins
		1650
		1651	Returns am arrayref of all valid playernames in the system, can take a
		1652	while and may block, so not sync_job-capable, ever.
		1653
		1654	=cut
		1655
		1656	sub list_logins {
		1657	my $dirs = aio_readdir $PLAYERDIR
		1658	or return [];
		1659
		1660	my @logins;
		1661
		1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
		1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1669	aio_read $fh, 0, 512, my $buf, 0 or next;
		1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
		1672
		1673	utf8::decode $login;
		1674	push @logins, $login;
		1675	}
		1676
		1677	\@logins
		1678	}
		1679
		1680	=item $player->maps
		1681
		1682	Returns an arrayref of map paths that are private for this
		1683	player. May block.
		1684
		1685	=cut
		1686
		1687	sub maps($) {
		1688	my ($pl) = @_;
		1689
		1690	$pl = ref $pl ? $pl->ob->name : $pl;
		1691
		1692	my $files = aio_readdir playerdir $pl
		1693	or return;
		1694
		1695	my @paths;
		1696
		1697	for (@$files) {
		1698	utf8::decode $_;
		1699	next if /\.(?:pl|pst)$/;
		1700	next unless /^$PATH_SEP/o;
		1701
		1702	push @paths, cf::map::normalise "~$pl/$_";
		1703	}
		1704
		1705	\@paths
		1706	}
		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
		1712	=item $player->ext_reply ($msgid, @msg)
		1713
		1714	Sends an ext reply to the player.
		1715
		1716	=cut
		1717
		1718	sub ext_reply($$@) {
		1719	my ($self, $id, @msg) = @_;
		1720
		1721	$self->ns->ext_reply ($id, @msg)
		1722	}
		1723
		1724	=item $player->ext_msg ($type, @msg)
		1725
		1726	Sends an ext event to the client.
		1727
		1728	=cut
		1729
		1730	sub ext_msg($$@) {
		1731	my ($self, $type, @msg) = @_;
		1732
		1733	$self->ns->ext_msg ($type, @msg);
		1734	}
		1735
		1736	=head3 cf::region
869		1737
870	=over 4	1738	=over 4
871		1739
872	=item cf::player::exists $login
873
874	Returns true when the given account exists.
875
876	=cut	1740	=cut
877		1741
878	sub cf::player::exists($) {	1742	package cf::region;
879	cf::player::find $_[0]
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
881	}
882		1743
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1744	=item cf::region::find_by_path $path
884		1745
885	Sends an ext reply to the player.	1746	Tries to decuce the likely region for a map knowing only its path.
886		1747
887	=cut	1748	=cut
888		1749
889	sub cf::player::ext_reply($$$%) {	1750	sub find_by_path($) {
		1751	my ($path) = @_;
		1752
		1753	my ($match, $specificity);
		1754
		1755	for my $region (list) {
		1756	if ($region->{match} && $path =~ $region->{match}) {
		1757	($match, $specificity) = ($region, $region->specificity)
		1758	if $region->specificity > $specificity;
		1759	}
		1760	}
		1761
		1762	$match
		1763	}
		1764
		1765	=back
		1766
		1767	=head3 cf::map
		1768
		1769	=over 4
		1770
		1771	=cut
		1772
		1773	package cf::map;
		1774
		1775	use Fcntl;
		1776	use Coro::AIO;
		1777
		1778	use overload
		1779	'""' => \&as_string,
		1780	fallback => 1;
		1781
		1782	our $MAX_RESET = 3600;
		1783	our $DEFAULT_RESET = 3000;
		1784
		1785	sub generate_random_map {
		1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1789
		1790	# mit "rum" bekleckern, nicht
		1791	$self->_create_random_map (
		1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
		1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1795	$rmp->{exit_on_final_map},
		1796	$rmp->{xsize}, $rmp->{ysize},
		1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1799	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1800	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1801	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1802	(cf::region::find $rmp->{region}), $rmp->{custom}
		1803	)
		1804	}
		1805
		1806	=item cf::map->register ($regex, $prio)
		1807
		1808	Register a handler for the map path matching the given regex at the
		1809	givne priority (higher is better, built-in handlers have priority 0, the
		1810	default).
		1811
		1812	=cut
		1813
		1814	sub register {
		1815	my (undef, $regex, $prio) = @_;
		1816	my $pkg = caller;
		1817
		1818	no strict;
		1819	push @{"$pkg\::ISA"}, __PACKAGE__;
		1820
		1821	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1822	}
		1823
		1824	# also paths starting with '/'
		1825	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1826
		1827	sub thawer_merge {
890	my ($self, $id, %msg) = @_;	1828	my ($self, $merge) = @_;
891		1829
892	$msg{msgid} = $id;	1830	# we have to keep some variables in memory intact
		1831	local $self->{path};
		1832	local $self->{load_path};
893		1833
894	$self->send ("ext " . to_json \%msg);	1834	$self->SUPER::thawer_merge ($merge);
895	}	1835	}
		1836
		1837	sub normalise {
		1838	my ($path, $base) = @_;
		1839
		1840	$path = "$path"; # make sure its a string
		1841
		1842	$path =~ s/\.map$//;
		1843
		1844	# map plan:
		1845	#
		1846	# /! non-realised random map exit (special hack!)
		1847	# {... are special paths that are not being touched
		1848	# ?xxx/... are special absolute paths
		1849	# ?random/... random maps
		1850	# /... normal maps
		1851	# ~user/... per-player map of a specific user
		1852
		1853	$path =~ s/$PATH_SEP/\//go;
		1854
		1855	# treat it as relative path if it starts with
		1856	# something that looks reasonable
		1857	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1858	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1859
		1860	$base =~ s{[^/]+/?$}{};
		1861	$path = "$base/$path";
		1862	}
		1863
		1864	for ($path) {
		1865	redo if s{//}{/};
		1866	redo if s{/\.?/}{/};
		1867	redo if s{/[^/]+/\.\./}{/};
		1868	}
		1869
		1870	$path
		1871	}
		1872
		1873	sub new_from_path {
		1874	my (undef, $path, $base) = @_;
		1875
		1876	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1877
		1878	$path = normalise $path, $base;
		1879
		1880	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1881	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1882	my $self = bless cf::map::new, $pkg;
		1883	$self->{path} = $path; $self->path ($path);
		1884	$self->init; # pass $1 etc.
		1885	return $self;
		1886	}
		1887	}
		1888
		1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1890	()
		1891	}
		1892
		1893	sub init {
		1894	my ($self) = @_;
		1895
		1896	$self
		1897	}
		1898
		1899	sub as_string {
		1900	my ($self) = @_;
		1901
		1902	"$self->{path}"
		1903	}
		1904
		1905	# the displayed name, this is a one way mapping
		1906	sub visible_name {
		1907	&as_string
		1908	}
		1909
		1910	# the original (read-only) location
		1911	sub load_path {
		1912	my ($self) = @_;
		1913
		1914	"$MAPDIR/$self->{path}.map"
		1915	}
		1916
		1917	# the temporary/swap location
		1918	sub save_path {
		1919	my ($self) = @_;
		1920
		1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1922	"$TMPDIR/$path.map"
		1923	}
		1924
		1925	# the unique path, undef == no special unique path
		1926	sub uniq_path {
		1927	my ($self) = @_;
		1928
		1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1930	"$UNIQUEDIR/$path"
		1931	}
		1932
		1933	sub decay_objects {
		1934	my ($self) = @_;
		1935
		1936	return if $self->{deny_reset};
		1937
		1938	$self->do_decay_objects;
		1939	}
		1940
		1941	sub unlink_save {
		1942	my ($self) = @_;
		1943
		1944	utf8::encode (my $save = $self->save_path);
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1946	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1947	}
		1948
		1949	sub load_header_from($) {
		1950	my ($self, $path) = @_;
		1951
		1952	utf8::encode $path;
		1953	my $f = new_from_file cf::object::thawer $path
		1954	or return;
		1955
		1956	$self->_load_header ($f)
		1957	or return;
		1958
		1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
		1961
		1962	$self->{load_path} = $path;
		1963
		1964	1
		1965	}
		1966
		1967	sub load_header_orig {
		1968	my ($self) = @_;
		1969
		1970	$self->load_header_from ($self->load_path)
		1971	}
		1972
		1973	sub load_header_temp {
		1974	my ($self) = @_;
		1975
		1976	$self->load_header_from ($self->save_path)
		1977	}
		1978
		1979	sub prepare_temp {
		1980	my ($self) = @_;
		1981
		1982	$self->last_access ((delete $self->{last_access})
		1983	|| $cf::RUNTIME); #d#
		1984	# safety
		1985	$self->{instantiate_time} = $cf::RUNTIME
		1986	if $self->{instantiate_time} > $cf::RUNTIME;
		1987	}
		1988
		1989	sub prepare_orig {
		1990	my ($self) = @_;
		1991
		1992	$self->{load_original} = 1;
		1993	$self->{instantiate_time} = $cf::RUNTIME;
		1994	$self->last_access ($cf::RUNTIME);
		1995	$self->instantiate;
		1996	}
		1997
		1998	sub load_header {
		1999	my ($self) = @_;
		2000
		2001	if ($self->load_header_temp) {
		2002	$self->prepare_temp;
		2003	} else {
		2004	$self->load_header_orig
		2005	or return;
		2006	$self->prepare_orig;
		2007	}
		2008
		2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
		2011
		2012	$self->default_region (cf::region::find_by_path $self->{path})
		2013	unless $self->default_region;
		2014
		2015	1
		2016	}
		2017
		2018	sub find;
		2019	sub find {
		2020	my ($path, $origin) = @_;
		2021
		2022	$path = normalise $path, $origin && $origin->path;
		2023
		2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2025	my $guard2 = cf::lock_acquire "map_find:$path";
		2026
		2027	$cf::MAP{$path} || do {
		2028	my $map = new_from_path cf::map $path
		2029	or return;
		2030
		2031	$map->{last_save} = $cf::RUNTIME;
		2032
		2033	$map->load_header
		2034	or return;
		2035
		2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2037	# doing this can freeze the server in a sync job, obviously
		2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
		2041	$map->reset;
		2042	return find $path;
		2043	}
		2044
		2045	$cf::MAP{$path} = $map
		2046	}
		2047	}
		2048
		2049	sub pre_load { }
		2050	#sub post_load { } # XS
		2051
		2052	sub load {
		2053	my ($self) = @_;
		2054
		2055	local $self->{deny_reset} = 1; # loading can take a long time
		2056
		2057	my $path = $self->{path};
		2058
		2059	{
		2060	my $guard = cf::lock_acquire "map_data:$path";
		2061
		2062	return unless $self->valid;
		2063	return unless $self->in_memory == cf::MAP_SWAPPED;
		2064
		2065	$self->in_memory (cf::MAP_LOADING);
		2066
		2067	$self->alloc;
		2068
		2069	$self->pre_load;
		2070	cf::cede_to_tick;
		2071
		2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
		2074	$self->_load_objects ($f)
		2075	or return;
		2076
		2077	$self->post_load_original
		2078	if delete $self->{load_original};
		2079
		2080	if (my $uniq = $self->uniq_path) {
		2081	utf8::encode $uniq;
		2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
		2084	$self->clear_unique_items;
		2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
		2088	}
		2089	}
		2090
		2091	$f->resolve_delayed_derefs;
		2092
		2093	cf::cede_to_tick;
		2094	# now do the right thing for maps
		2095	$self->link_multipart_objects;
		2096	$self->difficulty ($self->estimate_difficulty)
		2097	unless $self->difficulty;
		2098	cf::cede_to_tick;
		2099
		2100	unless ($self->{deny_activate}) {
		2101	$self->decay_objects;
		2102	$self->fix_auto_apply;
		2103	$self->update_buttons;
		2104	cf::cede_to_tick;
		2105	$self->activate;
		2106	}
		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
		2111	$self->in_memory (cf::MAP_ACTIVE);
		2112	}
		2113
		2114	$self->post_load;
		2115	}
		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
		2120	sub customise_for {
		2121	my ($self, $ob) = @_;
		2122
		2123	return find "~" . $ob->name . "/" . $self->{path}
		2124	if $self->per_player;
		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
		2129	$self
		2130	}
		2131
		2132	# find and load all maps in the 3x3 area around a map
		2133	sub load_neighbours {
		2134	my ($map) = @_;
		2135
		2136	my @neigh; # diagonal neighbours
		2137
		2138	for (0 .. 3) {
		2139	my $neigh = $map->tile_path ($_)
		2140	or next;
		2141	$neigh = find $neigh, $map
		2142	or next;
		2143	$neigh->load;
		2144
		2145	push @neigh,
		2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2148	}
		2149
		2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
		2152	my $neigh = find $path, $origin
		2153	or next;
		2154	$neigh->load;
		2155	}
		2156	}
		2157
		2158	sub find_sync {
		2159	my ($path, $origin) = @_;
		2160
		2161	cf::sync_job { find $path, $origin }
		2162	}
		2163
		2164	sub do_load_sync {
		2165	my ($map) = @_;
		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
		2170	cf::sync_job { $map->load };
		2171	}
		2172
		2173	our %MAP_PREFETCH;
		2174	our $MAP_PREFETCHER = undef;
		2175
		2176	sub find_async {
		2177	my ($path, $origin, $load) = @_;
		2178
		2179	$path = normalise $path, $origin && $origin->{path};
		2180
		2181	if (my $map = $cf::MAP{$path}) {
		2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2183	}
		2184
		2185	$MAP_PREFETCH{$path} |= $load;
		2186
		2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
		2190	while (%MAP_PREFETCH) {
		2191	while (my ($k, $v) = each %MAP_PREFETCH) {
		2192	if (my $map = find $k) {
		2193	$map->load if $v;
		2194	}
		2195
		2196	delete $MAP_PREFETCH{$k};
		2197	}
		2198	}
		2199	undef $MAP_PREFETCHER;
		2200	};
		2201	$MAP_PREFETCHER->prio (6);
		2202
		2203	()
		2204	}
		2205
		2206	sub save {
		2207	my ($self) = @_;
		2208
		2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2210
		2211	$self->{last_save} = $cf::RUNTIME;
		2212
		2213	return unless $self->dirty;
		2214
		2215	my $save = $self->save_path; utf8::encode $save;
		2216	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2217
		2218	$self->{load_path} = $save;
		2219
		2220	return if $self->{deny_save};
		2221
		2222	local $self->{last_access} = $self->last_access;#d#
		2223
		2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
		2226	$_->contr->save for $self->players;
		2227	};
		2228
		2229	cf::get_slot 0.02;
		2230
		2231	if ($uniq) {
		2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2234	} else {
		2235	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2236	}
		2237	}
		2238
		2239	sub swap_out {
		2240	my ($self) = @_;
		2241
		2242	# save first because save cedes
		2243	$self->save;
		2244
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
		2247	return if $self->players;
		2248	return if $self->in_memory != cf::MAP_ACTIVE;
		2249	return if $self->{deny_save};
		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
		2255	$self->clear;
		2256	}
		2257
		2258	sub reset_at {
		2259	my ($self) = @_;
		2260
		2261	# TODO: safety, remove and allow resettable per-player maps
		2262	return 1e99 if $self->{deny_reset};
		2263
		2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2266
		2267	$time + $to
		2268	}
		2269
		2270	sub should_reset {
		2271	my ($self) = @_;
		2272
		2273	$self->reset_at <= $cf::RUNTIME
		2274	}
		2275
		2276	sub reset {
		2277	my ($self) = @_;
		2278
		2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2280
		2281	return if $self->players;
		2282
		2283	warn "resetting map ", $self->path, "\n";
		2284
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# need to save uniques path
		2288	unless ($self->{deny_save}) {
		2289	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2290
		2291	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2292	if $uniq;
		2293	}
		2294
		2295	delete $cf::MAP{$self->path};
		2296
		2297	$self->deactivate;
		2298	$_->clear_links_to ($self) for values %cf::MAP;
		2299	$self->clear;
		2300
		2301	$self->unlink_save;
		2302	$self->destroy;
		2303	}
		2304
		2305	my $nuke_counter = "aaaa";
		2306
		2307	sub nuke {
		2308	my ($self) = @_;
		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
		2313	delete $cf::MAP{$self->path};
		2314
		2315	$self->unlink_save;
		2316
		2317	bless $self, "cf::map";
		2318	delete $self->{deny_reset};
		2319	$self->{deny_save} = 1;
		2320	$self->reset_timeout (1);
		2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2322
		2323	$cf::MAP{$self->path} = $self;
		2324	}
		2325
		2326	$self->reset; # polite request, might not happen
		2327	}
		2328
		2329	=item $maps = cf::map::tmp_maps
		2330
		2331	Returns an arrayref with all map paths of currently instantiated and saved
		2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
		2337	[
		2338	map {
		2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item $maps = cf::map::random_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
		2351
		2352	=cut
		2353
		2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
		2363	}
		2364
		2365	=item cf::map::unique_maps
		2366
		2367	Returns an arrayref of paths of all shared maps that have
		2368	instantiated unique items. May block.
		2369
		2370	=cut
		2371
		2372	sub unique_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	s/\.map$//; # TODO future compatibility hack
		2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2378	? ()
		2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
		2405	s/\.map$// or next;
		2406	utf8::decode $_;
		2407	push @maps, "$dir/$_";
		2408	}
		2409
		2410	push @dirs, map "$dir/$_", @$dirs;
		2411	}
		2412
		2413	\@maps
		2414	}
		2415
		2416	=back
		2417
		2418	=head3 cf::object
		2419
		2420	=cut
		2421
		2422	package cf::object;
		2423
		2424	=over 4
		2425
		2426	=item $ob->inv_recursive
		2427
		2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
		2430
		2431	=cut
		2432
		2433	sub inv_recursive_;
		2434	sub inv_recursive_ {
		2435	map { $_, inv_recursive_ $_->inv } @_
		2436	}
		2437
		2438	sub inv_recursive {
		2439	inv_recursive_ inv $_[0]
		2440	}
		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
		2468	}
		2469
		2470	package cf;
896		2471
897	=back	2472	=back
898		2473
899	=head3 cf::object::player	2474	=head3 cf::object::player
900		2475
…		…
905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	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	2481	can be C<undef>. Does the right thing when the player is currently in a
907	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
908		2483
909	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
910		2499
911	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
912	# with dialog boxes.	2501	# with dialog boxes.
913	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
914	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
916		2505
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2507
919	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
921	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
924	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
925	}	2533	}
926		2534
927	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
928		2536
929	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2546	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2547	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2548	: $cf::CFG{"may_$access"})
941	}	2549	}
942		2550
		2551	=item $player_object->enter_link
		2552
		2553	Freezes the player and moves him/her to a special map (C<{link}>).
		2554
		2555	The player should be reasonably safe there for short amounts of time (e.g.
		2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
		2559
		2560	Will never block.
		2561
		2562	=item $player_object->leave_link ($map, $x, $y)
		2563
		2564	Moves the player out of the special C<{link}> map onto the specified
		2565	map. If the map is not valid (or omitted), the player will be moved back
		2566	to the location he/she was before the call to C<enter_link>, or, if that
		2567	fails, to the emergency map position.
		2568
		2569	Might block.
		2570
		2571	=cut
		2572
		2573	sub link_map {
		2574	unless ($LINK_MAP) {
		2575	$LINK_MAP = cf::map::find "{link}"
		2576	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2577	$LINK_MAP->load;
		2578	}
		2579
		2580	$LINK_MAP
		2581	}
		2582
		2583	sub cf::object::player::enter_link {
		2584	my ($self) = @_;
		2585
		2586	$self->deactivate_recursive;
		2587
		2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2589
		2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2591	if $self->map && $self->map->{path} ne "{link}";
		2592
		2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2594	}
		2595
		2596	sub cf::object::player::leave_link {
		2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
		2600
		2601	my $link_pos = delete $self->{_link_pos};
		2602
		2603	unless ($map) {
		2604	# restore original map position
		2605	($map, $x, $y) = @{ $link_pos || [] };
		2606	$map = cf::map::find $map;
		2607
		2608	unless ($map) {
		2609	($map, $x, $y) = @$EMERGENCY_POSITION;
		2610	$map = cf::map::find $map
		2611	or die "FATAL: cannot load emergency map\n";
		2612	}
		2613	}
		2614
		2615	($x, $y) = (-1, -1)
		2616	unless (defined $x) && (defined $y);
		2617
		2618	# use -1 or undef as default coordinates, not 0, 0
		2619	($x, $y) = ($map->enter_x, $map->enter_y)
		2620	if $x <= 0 && $y <= 0;
		2621
		2622	$map->load;
		2623	$map->load_neighbours;
		2624
		2625	return unless $self->contr->active;
		2626
		2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2628	$self->enter_map ($map, $x, $y);
		2629
		2630	# only activate afterwards, to support waiting in hooks
		2631	$self->activate_recursive;
		2632	}
		2633
		2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2635
		2636	Moves the player to the given map-path and coordinates by first freezing
		2637	her, loading and preparing them map, calling the provided $check callback
		2638	that has to return the map if sucecssful, and then unfreezes the player on
		2639	the new (success) or old (failed) map position. In either case, $done will
		2640	be called at the end of this process.
		2641
		2642	Note that $check will be called with a potentially non-loaded map, so if
		2643	it needs a loaded map it has to call C<< ->load >>.
		2644
		2645	=cut
		2646
		2647	our $GOTOGEN;
		2648
		2649	sub cf::object::player::goto {
		2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2654
		2655	$self->enter_link;
		2656
		2657	(async {
		2658	$Coro::current->{desc} = "player::goto $path $x $y";
		2659
		2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
		2679	my $map = eval {
		2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
		2683	$map = $map->customise_for ($self);
		2684	$map = $check->($map) if $check && $map;
		2685	} else {
		2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
		2688
		2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
		2695	}
		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
		2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
		2703	})->prio (1);
		2704	}
		2705
		2706	=item $player_object->enter_exit ($exit_object)
		2707
		2708	=cut
		2709
		2710	sub parse_random_map_params {
		2711	my ($spec) = @_;
		2712
		2713	my $rmp = { # defaults
		2714	xsize => (cf::rndm 15, 40),
		2715	ysize => (cf::rndm 15, 40),
		2716	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2717	#layout => string,
		2718	};
		2719
		2720	for (split /\n/, $spec) {
		2721	my ($k, $v) = split /\s+/, $_, 2;
		2722
		2723	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2724	}
		2725
		2726	$rmp
		2727	}
		2728
		2729	sub prepare_random_map {
		2730	my ($exit) = @_;
		2731
		2732	# all this does is basically replace the /! path by
		2733	# a new random map path (?random/...) with a seed
		2734	# that depends on the exit object
		2735
		2736	my $rmp = parse_random_map_params $exit->msg;
		2737
		2738	if ($exit->map) {
		2739	$rmp->{region} = $exit->region->name;
		2740	$rmp->{origin_map} = $exit->map->path;
		2741	$rmp->{origin_x} = $exit->x;
		2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
		2745	}
		2746
		2747	$rmp->{random_seed} ||= $exit->random_seed;
		2748
		2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2750	my $md5 = Digest::MD5::md5_hex $data;
		2751	my $meta = "$RANDOMDIR/$md5.meta";
		2752
		2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2754	aio_write $fh, 0, (length $data), $data, 0;
		2755	undef $fh;
		2756	aio_rename "$meta~", $meta;
		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
		2761	$exit->slaying ("?random/$md5");
		2762	$exit->msg (undef);
		2763	}
		2764	}
		2765	}
		2766
		2767	sub cf::object::player::enter_exit {
		2768	my ($self, $exit) = @_;
		2769
		2770	return unless $self->type == cf::PLAYER;
		2771
		2772	$self->enter_link;
		2773
		2774	(async {
		2775	$Coro::current->{desc} = "enter_exit";
		2776
		2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
		2784	prepare_random_map $exit
		2785	if $exit->slaying eq "/!";
		2786	}
		2787
		2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
		2791
		2792	$self->goto ($map, $x, $y);
		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
		2798	1
		2799	}) {
		2800	$self->message ("Something went wrong deep within the deliantra server. "
		2801	. "I'll try to bring you back to the map you were before. "
		2802	. "Please report this to the dungeon master!",
		2803	cf::NDI_UNIQUE | cf::NDI_RED);
		2804
		2805	warn "ERROR in enter_exit: $@";
		2806	$self->leave_link;
		2807	}
		2808	})->prio (1);
		2809	}
		2810
943	=head3 cf::client	2811	=head3 cf::client
944		2812
945	=over 4	2813	=over 4
946		2814
947	=item $client->send_drawinfo ($text, $flags)	2815	=item $client->send_drawinfo ($text, $flags)
…		…
953		2821
954	sub cf::client::send_drawinfo {	2822	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2823	my ($self, $text, $flags) = @_;
956		2824
957	utf8::encode $text;	2825	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2827	}
960		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
		3016	=item $client->ext_msg ($type, @msg)
		3017
		3018	Sends an ext event to the client.
		3019
		3020	=cut
		3021
		3022	sub cf::client::ext_msg($$@) {
		3023	my ($self, $type, @msg) = @_;
		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
		3028	push @msg, msgtype => "event_$type";
		3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
		3049	}
961		3050
962	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
963		3052
964	Queues a query to the client, calling the given callback with	3053	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>,	3054	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>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		3056
968	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	3058	become reliable at some point in the future.
970		3059
971	=cut	3060	=cut
972		3061
973	sub cf::client::query {	3062	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	3071	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		3073
985	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
987	}	3078	}
988		3079
989	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
990	on_reply => sub {	3086	on_reply => sub {
991	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
992		3088
993	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
994	# get handled first	3090	# get handled first
995	my $queue = delete $ns->{query_queue};	3091	my $queue = delete $ns->{query_queue}
		3092	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		3093
997	(shift @$queue)->[1]->($msg);	3094	(shift @$queue)->[1]->($msg);
		3095	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		3096
999	push @{ $ns->{query_queue} }, @$queue;	3097	push @{ $ns->{query_queue} }, @$queue;
1000		3098
1001	if (@{ $ns->{query_queue} } == @$queue) {	3099	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	3100	if (@$queue) {
…		…
1004	} else {	3102	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	3104	}
1007	}	3105	}
1008	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
1009	);	3133	);
1010		3134
1011	=item $client->coro (\&cb)	3135	=item $client->async (\&cb)
1012		3136
1013	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	3138	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	3139	or loss of connection).
1016		3140
1017	=cut	3141	=cut
1018		3142
1019	sub cf::client::coro {	3143	sub cf::client::async {
1020	my ($self, $cb) = @_;	3144	my ($self, $cb) = @_;
1021		3145
1022	my $coro; $coro = async {	3146	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		3147
1029	$coro->on_destroy (sub {	3148	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	3149	delete $self->{_coro}{$coro+0};
1031	});	3150	});
1032		3151
…		…
1034		3153
1035	$coro	3154	$coro
1036	}	3155	}
1037		3156
1038	cf::client->attach (	3157	cf::client->attach (
1039	on_destroy => sub {	3158	on_client_destroy => sub {
1040	my ($ns) = @_;	3159	my ($ns) = @_;
1041		3160
1042	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1043	},	3162	},
1044	);	3163	);
…		…
1059	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
1061		3180
1062	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
1063		3182
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
1065		3188
1066	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
1067		3190
1068	=pod	3191	=pod
1069		3192
1070	The following fucntions and emthods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
1071		3194
1072	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
1073	cf::object::player player	3200	cf::object::player
1074	cf::player peaceful	3201	player
1075	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
1076		3208
1077	=cut	3209	=cut
1078		3210
1079	for (	3211	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
1081	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
1083	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
1084	) {	3218	) {
1085	no strict 'refs';	3219	no strict 'refs';
1086	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1105		3239
1106	my $qcode = $code;	3240	my $qcode = $code;
1107	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1108	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
1109		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
1110	local $_;	3247	local $_;
1111	local @safe::cf::_safe_eval_args = values %vars;
1112		3248
1113	my $eval =	3249	my $eval =
1114	"do {\n"	3250	"do {\n"
1115	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1116	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
1117	. $code	3253	. $code
1118	. "\n}"	3254	. "\n}"
1119	;	3255	;
1120		3256
		3257	if ($CFG{safe_eval}) {
1121	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
1122	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1123	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
1124		3266
1125	if ($@) {	3267	if ($@) {
1126	warn "$@";	3268	warn "$@";
1127	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
1128	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1147	=cut	3289	=cut
1148		3290
1149	sub register_script_function {	3291	sub register_script_function {
1150	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
1151		3293
1152	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
1153	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
1154	}	3296	}
1155		3297
1156	=back	3298	=back
1157		3299
1158	=cut	3300	=cut
1159		3301
1160	#############################################################################	3302	#############################################################################
		3303	# the server's init and main functions
1161		3304
1162	=head2 EXTENSION DATABASE SUPPORT	3305	sub load_facedata($) {
		3306	my ($path) = @_;
1163		3307
1164	Crossfire maintains a very simple database for extension use. It can	3308	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	3309	# for this (global event?)
1166	excludes objects.	3310	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		3311
1168	The parameter C<$family> should best start with the name of the extension	3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		3313
1171	=over 4	3314	warn "loading facedata from $path\n";
1172		3315
1173	=item $hashref = cf::db_get $family	3316	my $facedata;
		3317	0 < aio_load $path, $facedata
		3318	or die "$path: $!";
1174		3319
1175	Return a hashref for use by the extension C<$family>, which can be	3320	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		3321
1179	=item $value = cf::db_get $family => $key	3322	$facedata->{version} == 2
		3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		3324
1181	Returns a single value from the database	3325	# patch in the exptable
1182		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1183	=item cf::db_put $family => $hashref	3327	$facedata->{resource}{"res/exp_table"} = {
1184		3328	type => FT_RSRC,
1185	Stores the given family hashref into the database. Updates are delayed, if	3329	data => $exp_table,
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3330	hash => (Digest::MD5::md5 $exp_table),
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	});	3331	};
		3332	cf::cede_to_tick;
1236		3333
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	3334	{
		3335	my $faces = $facedata->{faceinfo};
1241		3336
1242	sub db_get($;$) {	3337	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		3339
1248	sub db_put($$;$) {	3340	cf::face::set_visibility $idx, $info->{visibility};
1249	if (@_ >= 3) {	3341	cf::face::set_magicmap $idx, $info->{magicmap};
1250	$DB->{$_[0]}{$_[1]} = $_[2];	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1251	} else {	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		3344
1257	cf::global->attach (	3345	cf::cede_to_tick;
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	3346	}
		3347
		3348	while (my ($face, $info) = each %$faces) {
		3349	next unless $info->{smooth};
		3350
		3351	my $idx = cf::face::find $face
		3352	or next;
		3353
		3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
		3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3357	} else {
		3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3359	}
		3360
		3361	cf::cede_to_tick;
		3362	}
		3363	}
		3364
		3365	{
		3366	my $anims = $facedata->{animinfo};
		3367
		3368	while (my ($anim, $info) = each %$anims) {
		3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3370	cf::cede_to_tick;
		3371	}
		3372
		3373	cf::anim::invalidate_all; # d'oh
		3374	}
		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
		3395	1
		3396	}
		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
		3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
		3441	load_resource_file "$MAPDIR/regions"
		3442	or die "unable to load regions file\n";
		3443
		3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
		3448	}
		3449
		3450	sub reload_facedata {
		3451	load_facedata "$DATADIR/facedata"
		3452	or die "unable to load facedata\n";
		3453	}
		3454
		3455	sub reload_archetypes {
		3456	load_resource_file "$DATADIR/archetypes"
		3457	or die "unable to load archetypes\n";
		3458	}
		3459
		3460	sub reload_treasures {
		3461	load_resource_file "$DATADIR/treasures"
		3462	or die "unable to load treasurelists\n";
		3463	}
		3464
		3465	sub reload_resources {
		3466	warn "reloading resource files...\n";
		3467
		3468	reload_facedata;
		3469	reload_archetypes;
		3470	reload_regions;
		3471	reload_treasures;
		3472
		3473	warn "finished reloading resource files\n";
		3474	}
		3475
		3476	sub reload_config {
		3477	warn "reloading config file...\n";
		3478
		3479	open my $fh, "<:utf8", "$CONFDIR/config"
		3480	or return;
		3481
		3482	local $/;
		3483	*CFG = YAML::XS::Load scalar <$fh>;
		3484
		3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3486
		3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3489
		3490	if (exists $CFG{mlockall}) {
		3491	eval {
		3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3493	and die "WARNING: m(un)lockall failed: $!\n";
		3494	};
		3495	warn $@ if $@;
		3496	}
		3497
		3498	warn "finished reloading resource files\n";
		3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
		3527	}
		3528
		3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
		3544	# we must not ever block the main coroutine
		3545	local $Coro::idle = sub {
		3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3547	(async {
		3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3549	EV::loop EV::LOOP_ONESHOT;
		3550	})->prio (Coro::PRIO_MAX);
1262	);	3551	};
		3552
		3553	evthread_start IO::AIO::poll_fileno;
		3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
		3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
		3571	load_extensions;
		3572
		3573	utime time, time, $RUNTIMEFILE;
		3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
1263	}	3583	}
1264		3584
1265	#############################################################################	3585	#############################################################################
1266	# the server's main()	3586	# initialisation and cleanup
1267		3587
1268	sub cfg_load {	3588	# install some emergency cleanup handlers
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3589	BEGIN {
		3590	our %SIGWATCHER = ();
		3591	for my $signal (qw(INT HUP TERM)) {
		3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3593	cf::cleanup "SIG$signal";
		3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1270	or return;	3609	or return;
1271		3610
1272	local $/;	3611	my $value = $cf::RUNTIME + 90 + 10;
1273	*CFG = YAML::Syck::Load <$fh>;	3612	# 10 is the runtime save interval, for a monotonic clock
1274	}	3613	# 60 allows for the watchdog to kill the server.
1275		3614
1276	sub main {	3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1277	cfg_load;	3616	and return;
1278	db_load;
1279	load_extensions;
1280	Event::loop;
1281	}
1282		3617
1283	#############################################################################	3618	# always fsync - this file is important
1284	# initialisation	3619	aio_fsync $fh
		3620	and return;
1285		3621
1286	sub _perl_reload() {	3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
		3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
		3684	}
		3685
		3686	sub emergency_save() {
		3687	my $freeze_guard = cf::freeze_mainloop;
		3688
		3689	warn "emergency_perl_save: enter\n";
		3690
		3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
		3697	# use a peculiar iteration method to avoid tripping on perl
		3698	# refcount bugs in for. also avoids problems with players
		3699	# and maps saved/destroyed asynchronously.
		3700	warn "emergency_perl_save: begin player save\n";
		3701	for my $login (keys %cf::PLAYER) {
		3702	my $pl = $cf::PLAYER{$login} or next;
		3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3705	$pl->save;
		3706	}
		3707	warn "emergency_perl_save: end player save\n";
		3708
		3709	warn "emergency_perl_save: begin map save\n";
		3710	for my $path (keys %cf::MAP) {
		3711	my $map = $cf::MAP{$path} or next;
		3712	$map->valid or next;
		3713	$map->save;
		3714	}
		3715	warn "emergency_perl_save: end map save\n";
		3716
		3717	warn "emergency_perl_save: begin database checkpoint\n";
		3718	BDB::db_env_txn_checkpoint $DB_ENV;
		3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
		3724	};
		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
		3731	warn "emergency_perl_save: leave\n";
		3732	}
		3733
		3734	sub post_cleanup {
		3735	my ($make_core) = @_;
		3736
		3737	warn Carp::longmess "post_cleanup backtrace"
		3738	if $make_core;
		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
		3768	}
		3769
		3770	sub do_reload_perl() {
1287	# can/must only be called in main	3771	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3773	warn "can only reload from main coroutine";
1290	return;	3774	return;
1291	}	3775	}
1292		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
1293	warn "reloading...";	3782	warn "reloading...";
1294		3783
1295	local $FREEZE = 1;	3784	warn "entering sync_job";
		3785
		3786	cf::sync_job {
		3787	cf::write_runtime_sync; # external watchdog should not bark
1296	cf::emergency_save;	3788	cf::emergency_save;
		3789	cf::write_runtime_sync; # external watchdog should not bark
1297		3790
1298	eval {	3791	warn "syncing database to disk";
		3792	BDB::db_env_txn_checkpoint $DB_ENV;
		3793
1299	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
1300		3795
1301	# cancel all watchers	3796	warn "flushing outstanding aio requests";
1302	for (Event::all_watchers) {	3797	while (IO::AIO::nreqs || BDB::nreqs) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3798	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	}	3799	}
1329		3800
1330	Symbol::delete_package $k;	3801	warn "cancelling all extension coros";
		3802	$_->cancel for values %EXT_CORO;
		3803	%EXT_CORO = ();
		3804
		3805	warn "removing commands";
		3806	%COMMAND = ();
		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
		3814	warn "... unloading $pkg";
		3815
		3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
		3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
1331	}	3825	}
1332		3826
1333	# sync database to disk	3827	warn "unloading all perl modules loaded from $LIBDIR";
1334	cf::db_sync;	3828	while (my ($k, $v) = each %INC) {
1335	IO::AIO::flush;	3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1336		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
		3842	}
		3843
1337	# get rid of safe::, as good as possible	3844	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3847
1341	# remove register_script_function callbacks	3848	warn "unloading cf.pm \"a bit\"";
1342	# TODO
1343
1344	# unload cf.pm "a bit"
1345	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
		3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1346		3851
1347	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3853	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
1350		3855
1351	# reload cf.pm	3856	warn "unload completed, starting to reload now";
		3857
1352	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
1353	require cf;	3859	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
1355		3861
1356	# load config and database again	3862	warn "loading config and database again";
1357	cf::cfg_load;	3863	cf::reload_config;
1358	cf::db_load;
1359		3864
1360	# load extensions
1361	warn "load extensions";	3865	warn "loading extensions";
1362	cf::load_extensions;	3866	cf::load_extensions;
1363		3867
1364	# reattach attachments to objects	3868	if ($REATTACH_ON_RELOAD) {
		3869	warn "reattaching attachments to objects/players";
		3870	_global_reattach; # objects, sockets
		3871	warn "reattaching attachments to maps";
		3872	reattach $_ for values %MAP;
		3873	warn "reattaching attachments to players";
		3874	reattach $_ for values %PLAYER;
		3875	}
		3876
		3877	warn "running post_init jobs";
		3878	(pop @POST_INIT)->(1) while @POST_INIT;
		3879
		3880	warn "leaving sync_job";
		3881
		3882	1
		3883	} or do {
		3884	warn $@;
		3885	cf::cleanup "error while reloading, exiting.";
		3886	};
		3887
1365	warn "reattach";	3888	warn "reloaded";
1366	_global_reattach;	3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
		3894	};
		3895
		3896	our $RELOAD_WATCHER; # used only during reload
		3897
		3898	sub reload_perl() {
		3899	# doing reload synchronously and two reloads happen back-to-back,
		3900	# coro crashes during coro_state_free->destroy here.
		3901
		3902	$RELOAD_WATCHER ||= cf::async {
		3903	Coro::AIO::aio_wait cache_extensions;
		3904
		3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3906	do_reload_perl;
		3907	undef $RELOAD_WATCHER;
		3908	};
1367	};	3909	};
		3910	}
1368		3911
1369	if ($@) {	3912	register_command "reload" => sub {
1370	warn $@;	3913	my ($who, $arg) = @_;
1371	warn "error while reloading, exiting.";
1372	exit 1;
1373	}
1374		3914
1375	warn "reloaded successfully";	3915	if ($who->flag (FLAG_WIZ)) {
		3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
		3919	reload_perl;
		3920	};
		3921	}
1376	};	3922	};
1377		3923
1378	sub perl_reload() {
1379	_perl_reload;
1380	}
1381
1382	register "<global>", __PACKAGE__;
1383
1384	register_command "perl-reload" => sub {
1385	my ($who, $arg) = @_;
1386
1387	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");
1389	_perl_reload;
1390	}
1391	};
1392
1393	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
1394		3925
1395	$TICK_WATCHER = Event->timer (	3926	my $bug_warning = 0;
1396	reentrant => 0,	3927
1397	prio => 0,	3928	our @WAIT_FOR_TICK;
1398	at => $NEXT_TICK || $TICK,	3929	our @WAIT_FOR_TICK_BEGIN;
1399	data => WF_AUTOCANCEL,	3930
1400	cb => sub {	3931	sub wait_for_tick {
1401	unless ($FREEZE) {	3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3933
		3934	my $signal = new Coro::Signal;
		3935	push @WAIT_FOR_TICK, $signal;
		3936	$signal->wait;
		3937	}
		3938
		3939	sub wait_for_tick_begin {
		3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3941
		3942	my $signal = new Coro::Signal;
		3943	push @WAIT_FOR_TICK_BEGIN, $signal;
		3944	$signal->wait;
		3945	}
		3946
		3947	sub tick {
		3948	if ($Coro::current != $Coro::main) {
		3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3950	unless ++$bug_warning > 10;
		3951	return;
		3952	}
		3953
1402	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	3955
		3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3957
		3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3960	Coro::async_pool {
		3961	$Coro::current->{desc} = "runtime saver";
		3962	write_runtime_sync
		3963	or warn "ERROR: unable to write runtime file: $!";
1404	}	3964	};
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	},	3965	}
1414	);
1415		3966
		3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3968	$sig->send;
		3969	}
		3970	while (my $sig = shift @WAIT_FOR_TICK) {
		3971	$sig->send;
		3972	}
		3973
		3974	$LOAD = ($NOW - $TICK_START) / $TICK;
		3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3976
		3977	if (0) {
		3978	if ($NEXT_TICK) {
		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
		3983	}
		3984	}
		3985
		3986	{
		3987	# configure BDB
		3988
		3989	BDB::min_parallel 16;
		3990	BDB::max_poll_reqs $TICK * 0.1;
		3991	$AnyEvent::BDB::WATCHER->priority (1);
		3992
		3993	unless ($DB_ENV) {
		3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4000
		4001	cf::sync_job {
		4002	eval {
		4003	BDB::db_env_open
		4004	$DB_ENV,
		4005	$BDBDIR,
		4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4008	0666;
		4009
		4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4011	};
		4012
		4013	cf::cleanup "db_env_open(db): $@" if $@;
		4014	};
		4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
		4026	}
		4027
		4028	{
		4029	# configure IO::AIO
		4030
		4031	IO::AIO::min_parallel 8;
1416	IO::AIO::max_poll_time $TICK * 0.2;	4032	IO::AIO::max_poll_time $TICK * 0.1;
		4033	undef $AnyEvent::AIO::WATCHER;
		4034	}
1417		4035
1418	Event->io (fd => IO::AIO::poll_fileno,	4036	my $_log_backtrace;
1419	poll => 'r',
1420	prio => 5,
1421	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);
1423		4037
1424	# we must not ever block the main coroutine	4038	sub _log_backtrace {
1425	$Coro::idle = sub {	4039	my ($msg, @addr) = @_;
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	4040
1427	warn "FATAL: Coro::idle was called, major BUG\n";	4041	$msg =~ s/\n//;
1428	(Coro::unblock_sub {	4042
1429	Event::one_event;	4043	# limit the # of concurrent backtraces
1430	})->();	4044	if ($_log_backtrace < 2) {
1431	};	4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
		4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
		4050	my @bt = fork_call {
		4051	@addr = map { sprintf "%x", $_ } @addr;
		4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4054	or die "addr2line: $!";
		4055
		4056	my @funcs;
		4057	my @res = <$fh>;
		4058	chomp for @res;
		4059	while (@res) {
		4060	my ($func, $line) = splice @res, 0, 2, ();
		4061	push @funcs, "[$func] $line";
		4062	}
		4063
		4064	@funcs
		4065	};
		4066
		4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4069	LOG llevInfo, "[ABT] $_\n" for @bt;
		4070	--$_log_backtrace;
		4071	};
		4072	} else {
		4073	LOG llevInfo, "[ABT] $msg\n";
		4074	LOG llevInfo, "[ABT] [suppressed]\n";
		4075	}
		4076	}
		4077
		4078	# load additional modules
		4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
		4081
		4082	END { cf::emergency_save }
1432		4083
1433	1	4084	1
1434		4085

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