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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.519 by root, Fri Apr 16 02:32:25 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 time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
		465	}
		466	};
		467
		468	sub get_slot($;$$) {
		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	sub objinfo {
		595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		768	}
		769
245	=back	770	=back
246		771
247	=cut	772	=cut
248		773
249	#############################################################################	774	#############################################################################
250		775
251	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
252		777
253	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
254	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
256		781
257	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
258	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	784	Deliantra).
260		785
261	=over 4	786	=over 4
262		787
263	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
264		789
…		…
308	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
309		834
310	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
311	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
312		837
313	Some classes such as crossfire maps and objects can specify attachments	838	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.	839	that are attached at load/instantiate time, thus the need for a name.
315		840
316	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
317		842
318	=over 4	843	=over 4
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	903	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	904	our @CB_MAP = ();
380		905
381	my %attachment;	906	my %attachment;
382		907
		908	sub cf::attachable::thawer_merge {
		909	# simply override everything except _meta
		910	local $_[0]{_meta};
		911	%{$_[0]} = %{$_[1]};
		912	}
		913
383	sub _attach_cb($$$$) {	914	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	915	my ($registry, $event, $prio, $cb) = @_;
385		916
386	use sort 'stable';	917	use sort 'stable';
387		918
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
422		953
423	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		958
428	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	960	my $pkg = shift @arg;
430		961
431	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
461	}	992	}
462		993
463	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
464	} else {	995	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	997	}
467		998
468	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
469	}	1000	}
470		1001
…		…
472	if (ref $_[0]) {	1003	if (ref $_[0]) {
473	_object_attach @_;	1004	_object_attach @_;
474	} else {	1005	} else {
475	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
476	}	1007	}
		1008	_recalc_want;
477	};	1009	};
478		1010
479	# all those should be optimised	1011	# all those should be optimised
480	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
485	reattach ($obj);	1017	reattach ($obj);
486	} else {	1018	} else {
487	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
488	}	1020	}
		1021	_recalc_want;
489	};	1022	};
490		1023
491	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
493		1026
…		…
508	";	1041	";
509	die if $@;	1042	die if $@;
510	}	1043	}
511		1044
512	our $override;	1045	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		1047
515	sub override {	1048	sub override {
516	$override = 1;	1049	$override = 1;
517	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
518	}	1051	}
519		1052
520	sub do_invoke {	1053	sub do_invoke {
521	my $event = shift;	1054	my $event = shift;
522	my $callbacks = shift;	1055	my $callbacks = shift;
523		1056
524	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
525		1058
526	local $override;	1059	local $override;
527		1060
528	for (@$callbacks) {	1061	for (@$callbacks) {
529	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
538	}	1071	}
539		1072
540	0	1073	0
541	}	1074	}
542		1075
543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
544		1077
545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
546		1079
547	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
548		1081
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
550	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		1085
553	=back	1086	=back
554		1087
555	=cut	1088	=cut
556		1089
557	#############################################################################	1090	#############################################################################
558	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
559		1134
560	sub reattach {	1135	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	1137	my ($obj) = @_;
		1138
		1139	# no longer needed after getting rid of delete_package?
		1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		1141
564	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
565		1143
566	@$registry = ();	1144	@$registry = ();
567		1145
…		…
582	cf::attachable->attach (	1160	cf::attachable->attach (
583	prio => -1000000,	1161	prio => -1000000,
584	on_instantiate => sub {	1162	on_instantiate => sub {
585	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
586		1164
587	$data = from_json $data;	1165	$data = decode_json $data;
588		1166
589	for (@$data) {	1167	for (@$data) {
590	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
591		1169
592	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
608	sub object_freezer_save {	1186	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
610		1188
611	sync_job {	1189	sync_job {
612	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
613	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
615		1194
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 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;
619	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
620	close $fh;	1202	aio_close $fh;
621		1203
622	if (@$objs) {	1204	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
		1209	if ($cf::USE_FSYNC) {
		1210	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
627	aio_fsync $fh;	1211	aio_fsync $fh;
		1212	}
628	close $fh;	1213	aio_close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
630	}	1215	}
631	} else {	1216	} else {
632	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
633	}	1218	}
634		1219
635	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
636	} else {	1224	} else {
637	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
638	}	1226	}
639	} else {	1227	} else {
640	aio_unlink $filename;	1228	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
642	}	1230	}
643	}	1231	};
644	}	1232	}
645		1233
646	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
648		1236
…		…
660	or return;	1248	or return;
661		1249
662	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
664	or return;	1252	or return;
		1253
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
666	}	1256	}
667		1257
		1258	utf8::decode (my $decname = $filename);
		1259	warn sprintf "loading %s (%d,%d)\n",
		1260	$decname, length $data, scalar @{$av || []};
		1261
668	return ($data, $av);	1262	($data, $av)
669	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
670		1270
671	#############################################################################	1271	#############################################################################
672	# command handling &c	1272	# command handling &c
673		1273
674	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1288	}
689		1289
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1291
692	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
693		1297
694	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
695	called.	1299	called.
696		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
697	=cut	1312	=cut
698		1313
699	sub register_extcmd {	1314	sub register_extcmd {
700	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
701		1316
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1317	$EXTCMD{$name} = $cb;
706	}	1318	}
		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
707		1327
708	cf::player->attach (	1328	cf::player->attach (
709	on_command => sub {	1329	on_unknown_command => sub {
710	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
711		1331
712	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
713	or return;	1333	or return;
714		1334
…		…
719	cf::override;	1339	cf::override;
720	},	1340	},
721	on_extcmd => sub {	1341	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
723		1343
724	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1345
726	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
732	} else {	1361	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1363	}
735		1364
736	cf::override;	1365	cf::override;
737	},	1366	},
738	);	1367	);
739		1368
740	sub register {	1369	# "readahead" all extensions
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	1370	sub cache_extensions {
747	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
748		1372
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
750	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
751	my $pkg = $1;	1375	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	}	1376	}
799	}	1377	};
800		1378
801	# remove extcmds	1379	$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	}	1380	}
815		1381
816	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
817	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	1387	next unless -r $path;
819	eval {	1388
820	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
821	1	1449	}
822	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
823	}	1460	};
824	}	1461	}
825		1462
826	#############################################################################	1463	#############################################################################
827	# load/save/clean perl data associated with a map
828		1464
829	*cf::mapsupport::on_clean = sub {	1465	=back
		1466
		1467	=head2 CORE EXTENSIONS
		1468
		1469	Functions and methods that extend core deliantra objects.
		1470
		1471	=cut
		1472
		1473	package cf::player;
		1474
		1475	use Coro::AIO;
		1476
		1477	=head3 cf::player
		1478
		1479	=over 4
		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
		1495	=item cf::player::find $login
		1496
		1497	Returns the given player object, loading it if necessary (might block).
		1498
		1499	=cut
		1500
		1501	sub playerdir($) {
		1502	"$PLAYERDIR/"
		1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1504	}
		1505
		1506	sub path($) {
		1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1508
		1509	(playerdir $login) . "/playerdata"
		1510	}
		1511
		1512	sub find_active($) {
		1513	$cf::PLAYER{$_[0]}
		1514	and $cf::PLAYER{$_[0]}->active
		1515	and $cf::PLAYER{$_[0]}
		1516	}
		1517
		1518	sub exists($) {
830	my ($map) = @_;	1519	my ($login) = @_;
831		1520
832	my $path = $map->tmpname;	1521	$cf::PLAYER{$login}
833	defined $path or return;	1522	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	}	1523	}
846		1524
847	# TODO: compatibility cruft, remove when no longer needed	1525	sub find($) {
		1526	return $cf::PLAYER{$_[0]} || do {
		1527	my $login = $_[0];
		1528
		1529	my $guard = cf::lock_acquire "user_find:$login";
		1530
		1531	$cf::PLAYER{$_[0]} || do {
		1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
		1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
		1547	$cf::PLAYER{$login} = $pl
		1548	}
		1549	}
		1550	}
		1551
848	cf::player->attach (	1552	cf::player->attach (
849	on_load => sub {	1553	on_load => sub {
850	my ($pl, $path) = @_;	1554	my ($pl, $path) = @_;
851		1555
852	for my $o (all_objects $pl->ob) {	1556	# restore slots saved in save, below
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1557	my $slots = delete $pl->{_slots};
854	$o->set_ob_key_value ("_perl_data");
855		1558
856	%$o = %{ Storable::thaw pack "H*", $value };	1559	$pl->ob->current_weapon ($slots->[0]);
857	}	1560	$pl->combat_ob ($slots->[1]);
858	}	1561	$pl->ranged_ob ($slots->[2]);
859	},	1562	},
860	);	1563	);
861		1564
862	#############################################################################	1565	sub save($) {
		1566	my ($pl) = @_;
863		1567
864	=head2 CORE EXTENSIONS	1568	return if $pl->{deny_save};
865		1569
866	Functions and methods that extend core crossfire objects.	1570	my $path = path $pl;
		1571	my $guard = cf::lock_acquire "user_save:$path";
867		1572
868	=head3 cf::player	1573	return if $pl->{deny_save};
		1574
		1575	aio_mkdir playerdir $pl, 0770;
		1576	$pl->{last_save} = $cf::RUNTIME;
		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
		1583	$pl->save_pl ($path);
		1584	cf::cede_to_tick;
		1585	}
		1586
		1587	sub new($) {
		1588	my ($login) = @_;
		1589
		1590	my $self = create;
		1591
		1592	$self->ob->name ($login);
		1593	$self->{deny_save} = 1;
		1594
		1595	$cf::PLAYER{$login} = $self;
		1596
		1597	$self
		1598	}
		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
		1610	=item $pl->quit_character
		1611
		1612	Nukes the player without looking back. If logged in, the connection will
		1613	be destroyed. May block for a long time.
		1614
		1615	=cut
		1616
		1617	sub quit_character {
		1618	my ($pl) = @_;
		1619
		1620	my $name = $pl->ob->name;
		1621
		1622	$pl->{deny_save} = 1;
		1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1624
		1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
		1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1630	$pl->ns->destroy if $pl->ns;
		1631
		1632	my $path = playerdir $pl;
		1633	my $temp = "$path~$cf::RUNTIME~deleting~";
		1634	aio_rename $path, $temp;
		1635	delete $cf::PLAYER{$pl->ob->name};
		1636	$pl->destroy;
		1637
		1638	my $prefix = qr<^~\Q$name\E/>;
		1639
		1640	# nuke player maps
		1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1642
		1643	IO::AIO::aio_rmtree $temp;
		1644	}
		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
		1658	}
		1659
		1660	=item cf::player::list_logins
		1661
		1662	Returns am arrayref of all valid playernames in the system, can take a
		1663	while and may block, so not sync_job-capable, ever.
		1664
		1665	=cut
		1666
		1667	sub list_logins {
		1668	my $dirs = aio_readdir $PLAYERDIR
		1669	or return [];
		1670
		1671	my @logins;
		1672
		1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
		1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1680	aio_read $fh, 0, 512, my $buf, 0 or next;
		1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
		1683
		1684	utf8::decode $login;
		1685	push @logins, $login;
		1686	}
		1687
		1688	\@logins
		1689	}
		1690
		1691	=item $player->maps
		1692
		1693	Returns an arrayref of map paths that are private for this
		1694	player. May block.
		1695
		1696	=cut
		1697
		1698	sub maps($) {
		1699	my ($pl) = @_;
		1700
		1701	$pl = ref $pl ? $pl->ob->name : $pl;
		1702
		1703	my $files = aio_readdir playerdir $pl
		1704	or return;
		1705
		1706	my @paths;
		1707
		1708	for (@$files) {
		1709	utf8::decode $_;
		1710	next if /\.(?:pl|pst)$/;
		1711	next unless /^$PATH_SEP/o;
		1712
		1713	push @paths, cf::map::normalise "~$pl/$_";
		1714	}
		1715
		1716	\@paths
		1717	}
		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
		1723	=item $player->ext_reply ($msgid, @msg)
		1724
		1725	Sends an ext reply to the player.
		1726
		1727	=cut
		1728
		1729	sub ext_reply($$@) {
		1730	my ($self, $id, @msg) = @_;
		1731
		1732	$self->ns->ext_reply ($id, @msg)
		1733	}
		1734
		1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		1747	=head3 cf::region
869		1748
870	=over 4	1749	=over 4
871		1750
872	=item cf::player::exists $login
873
874	Returns true when the given account exists.
875
876	=cut	1751	=cut
877		1752
878	sub cf::player::exists($) {	1753	package cf::region;
879	cf::player::find $_[0]
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
881	}
882		1754
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1755	=item cf::region::find_by_path $path
884		1756
885	Sends an ext reply to the player.	1757	Tries to decuce the likely region for a map knowing only its path.
886		1758
887	=cut	1759	=cut
888		1760
889	sub cf::player::ext_reply($$$%) {	1761	sub find_by_path($) {
		1762	my ($path) = @_;
		1763
		1764	my ($match, $specificity);
		1765
		1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
		1774	}
		1775
		1776	=back
		1777
		1778	=head3 cf::map
		1779
		1780	=over 4
		1781
		1782	=cut
		1783
		1784	package cf::map;
		1785
		1786	use Fcntl;
		1787	use Coro::AIO;
		1788
		1789	use overload
		1790	'""' => \&as_string,
		1791	fallback => 1;
		1792
		1793	our $MAX_RESET = 3600;
		1794	our $DEFAULT_RESET = 3000;
		1795
		1796	sub generate_random_map {
		1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
		1801	# mit "rum" bekleckern, nicht
		1802	$self->_create_random_map (
		1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
		1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1806	$rmp->{exit_on_final_map},
		1807	$rmp->{xsize}, $rmp->{ysize},
		1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1810	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1811	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1812	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1813	(cf::region::find $rmp->{region}), $rmp->{custom}
		1814	)
		1815	}
		1816
		1817	=item cf::map->register ($regex, $prio)
		1818
		1819	Register a handler for the map path matching the given regex at the
		1820	givne priority (higher is better, built-in handlers have priority 0, the
		1821	default).
		1822
		1823	=cut
		1824
		1825	sub register {
		1826	my (undef, $regex, $prio) = @_;
		1827	my $pkg = caller;
		1828
		1829	no strict;
		1830	push @{"$pkg\::ISA"}, __PACKAGE__;
		1831
		1832	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1833	}
		1834
		1835	# also paths starting with '/'
		1836	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1837
		1838	sub thawer_merge {
890	my ($self, $id, %msg) = @_;	1839	my ($self, $merge) = @_;
891		1840
892	$msg{msgid} = $id;	1841	# we have to keep some variables in memory intact
		1842	local $self->{path};
		1843	local $self->{load_path};
893		1844
894	$self->send ("ext " . to_json \%msg);	1845	$self->SUPER::thawer_merge ($merge);
895	}	1846	}
		1847
		1848	sub normalise {
		1849	my ($path, $base) = @_;
		1850
		1851	$path = "$path"; # make sure its a string
		1852
		1853	$path =~ s/\.map$//;
		1854
		1855	# map plan:
		1856	#
		1857	# /! non-realised random map exit (special hack!)
		1858	# {... are special paths that are not being touched
		1859	# ?xxx/... are special absolute paths
		1860	# ?random/... random maps
		1861	# /... normal maps
		1862	# ~user/... per-player map of a specific user
		1863
		1864	$path =~ s/$PATH_SEP/\//go;
		1865
		1866	# treat it as relative path if it starts with
		1867	# something that looks reasonable
		1868	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1869	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1870
		1871	$base =~ s{[^/]+/?$}{};
		1872	$path = "$base/$path";
		1873	}
		1874
		1875	for ($path) {
		1876	redo if s{//}{/};
		1877	redo if s{/\.?/}{/};
		1878	redo if s{/[^/]+/\.\./}{/};
		1879	}
		1880
		1881	$path
		1882	}
		1883
		1884	sub new_from_path {
		1885	my (undef, $path, $base) = @_;
		1886
		1887	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1888
		1889	$path = normalise $path, $base;
		1890
		1891	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1892	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1893	my $self = bless cf::map::new, $pkg;
		1894	$self->{path} = $path; $self->path ($path);
		1895	$self->init; # pass $1 etc.
		1896	return $self;
		1897	}
		1898	}
		1899
		1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1901	()
		1902	}
		1903
		1904	sub init {
		1905	my ($self) = @_;
		1906
		1907	$self
		1908	}
		1909
		1910	sub as_string {
		1911	my ($self) = @_;
		1912
		1913	"$self->{path}"
		1914	}
		1915
		1916	# the displayed name, this is a one way mapping
		1917	sub visible_name {
		1918	&as_string
		1919	}
		1920
		1921	# the original (read-only) location
		1922	sub load_path {
		1923	my ($self) = @_;
		1924
		1925	"$MAPDIR/$self->{path}.map"
		1926	}
		1927
		1928	# the temporary/swap location
		1929	sub save_path {
		1930	my ($self) = @_;
		1931
		1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1933	"$TMPDIR/$path.map"
		1934	}
		1935
		1936	# the unique path, undef == no special unique path
		1937	sub uniq_path {
		1938	my ($self) = @_;
		1939
		1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1941	"$UNIQUEDIR/$path"
		1942	}
		1943
		1944	sub decay_objects {
		1945	my ($self) = @_;
		1946
		1947	return if $self->{deny_reset};
		1948
		1949	$self->do_decay_objects;
		1950	}
		1951
		1952	sub unlink_save {
		1953	my ($self) = @_;
		1954
		1955	utf8::encode (my $save = $self->save_path);
		1956	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1957	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1958	}
		1959
		1960	sub load_header_from($) {
		1961	my ($self, $path) = @_;
		1962
		1963	utf8::encode $path;
		1964	my $f = new_from_file cf::object::thawer $path
		1965	or return;
		1966
		1967	$self->_load_header ($f)
		1968	or return;
		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
		1972
		1973	$self->{load_path} = $path;
		1974
		1975	1
		1976	}
		1977
		1978	sub load_header_orig {
		1979	my ($self) = @_;
		1980
		1981	$self->load_header_from ($self->load_path)
		1982	}
		1983
		1984	sub load_header_temp {
		1985	my ($self) = @_;
		1986
		1987	$self->load_header_from ($self->save_path)
		1988	}
		1989
		1990	sub prepare_temp {
		1991	my ($self) = @_;
		1992
		1993	$self->last_access ((delete $self->{last_access})
		1994	|| $cf::RUNTIME); #d#
		1995	# safety
		1996	$self->{instantiate_time} = $cf::RUNTIME
		1997	if $self->{instantiate_time} > $cf::RUNTIME;
		1998	}
		1999
		2000	sub prepare_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->{load_original} = 1;
		2004	$self->{instantiate_time} = $cf::RUNTIME;
		2005	$self->last_access ($cf::RUNTIME);
		2006	$self->instantiate;
		2007	}
		2008
		2009	sub load_header {
		2010	my ($self) = @_;
		2011
		2012	if ($self->load_header_temp) {
		2013	$self->prepare_temp;
		2014	} else {
		2015	$self->load_header_orig
		2016	or return;
		2017	$self->prepare_orig;
		2018	}
		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
		2023	$self->default_region (cf::region::find_by_path $self->{path})
		2024	unless $self->default_region;
		2025
		2026	1
		2027	}
		2028
		2029	sub find;
		2030	sub find {
		2031	my ($path, $origin) = @_;
		2032
		2033	$path = normalise $path, $origin && $origin->path;
		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2036	my $guard2 = cf::lock_acquire "map_find:$path";
		2037
		2038	$cf::MAP{$path} || do {
		2039	my $map = new_from_path cf::map $path
		2040	or return;
		2041
		2042	$map->{last_save} = $cf::RUNTIME;
		2043
		2044	$map->load_header
		2045	or return;
		2046
		2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
		2052	$map->reset;
		2053	return find $path;
		2054	}
		2055
		2056	$cf::MAP{$path} = $map
		2057	}
		2058	}
		2059
		2060	sub pre_load { }
		2061	#sub post_load { } # XS
		2062
		2063	sub load {
		2064	my ($self) = @_;
		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
		2068	my $path = $self->{path};
		2069
		2070	{
		2071	my $guard = cf::lock_acquire "map_data:$path";
		2072
		2073	return unless $self->valid;
		2074	return unless $self->in_memory == cf::MAP_SWAPPED;
		2075
		2076	$self->in_memory (cf::MAP_LOADING);
		2077
		2078	$self->alloc;
		2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
		2086	or return;
		2087
		2088	$self->post_load_original
		2089	if delete $self->{load_original};
		2090
		2091	if (my $uniq = $self->uniq_path) {
		2092	utf8::encode $uniq;
		2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
		2095	$self->clear_unique_items;
		2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
		2099	}
		2100	}
		2101
		2102	$f->resolve_delayed_derefs;
		2103
		2104	cf::cede_to_tick;
		2105	# now do the right thing for maps
		2106	$self->link_multipart_objects;
		2107	$self->difficulty ($self->estimate_difficulty)
		2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->activate;
		2117	}
		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
		2122	$self->in_memory (cf::MAP_ACTIVE);
		2123	}
		2124
		2125	$self->post_load;
		2126	}
		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
		2131	sub customise_for {
		2132	my ($self, $ob) = @_;
		2133
		2134	return find "~" . $ob->name . "/" . $self->{path}
		2135	if $self->per_player;
		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
		2140	$self
		2141	}
		2142
		2143	# find and load all maps in the 3x3 area around a map
		2144	sub load_neighbours {
		2145	my ($map) = @_;
		2146
		2147	my @neigh; # diagonal neighbours
		2148
		2149	for (0 .. 3) {
		2150	my $neigh = $map->tile_path ($_)
		2151	or next;
		2152	$neigh = find $neigh, $map
		2153	or next;
		2154	$neigh->load;
		2155
		2156	push @neigh,
		2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2159	}
		2160
		2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
		2163	my $neigh = find $path, $origin
		2164	or next;
		2165	$neigh->load;
		2166	}
		2167	}
		2168
		2169	sub find_sync {
		2170	my ($path, $origin) = @_;
		2171
		2172	cf::sync_job { find $path, $origin }
		2173	}
		2174
		2175	sub do_load_sync {
		2176	my ($map) = @_;
		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
		2181	cf::sync_job { $map->load };
		2182	}
		2183
		2184	our %MAP_PREFETCH;
		2185	our $MAP_PREFETCHER = undef;
		2186
		2187	sub find_async {
		2188	my ($path, $origin, $load) = @_;
		2189
		2190	$path = normalise $path, $origin && $origin->{path};
		2191
		2192	if (my $map = $cf::MAP{$path}) {
		2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2194	}
		2195
		2196	$MAP_PREFETCH{$path} |= $load;
		2197
		2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
		2201	while (%MAP_PREFETCH) {
		2202	while (my ($k, $v) = each %MAP_PREFETCH) {
		2203	if (my $map = find $k) {
		2204	$map->load if $v;
		2205	}
		2206
		2207	delete $MAP_PREFETCH{$k};
		2208	}
		2209	}
		2210	undef $MAP_PREFETCHER;
		2211	};
		2212	$MAP_PREFETCHER->prio (6);
		2213
		2214	()
		2215	}
		2216
		2217	# common code, used by both ->save and ->swapout
		2218	sub _save {
		2219	my ($self) = @_;
		2220
		2221	$self->{last_save} = $cf::RUNTIME;
		2222
		2223	return unless $self->dirty;
		2224
		2225	my $save = $self->save_path; utf8::encode $save;
		2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2227
		2228	$self->{load_path} = $save;
		2229
		2230	return if $self->{deny_save};
		2231
		2232	local $self->{last_access} = $self->last_access;#d#
		2233
		2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
		2236	$_->contr->save for $self->players;
		2237	};
		2238
		2239	cf::get_slot 0.02;
		2240
		2241	if ($uniq) {
		2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2244	} else {
		2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2246	}
		2247	}
		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
		2257	sub swap_out {
		2258	my ($self) = @_;
		2259
		2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
		2264	return if $self->players;
		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
		2275	$self->clear;
		2276	}
		2277
		2278	sub reset_at {
		2279	my ($self) = @_;
		2280
		2281	# TODO: safety, remove and allow resettable per-player maps
		2282	return 1e99 if $self->{deny_reset};
		2283
		2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2286
		2287	$time + $to
		2288	}
		2289
		2290	sub should_reset {
		2291	my ($self) = @_;
		2292
		2293	$self->reset_at <= $cf::RUNTIME
		2294	}
		2295
		2296	sub reset {
		2297	my ($self) = @_;
		2298
		2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2300
		2301	return if $self->players;
		2302
		2303	warn "resetting map ", $self->path, "\n";
		2304
		2305	$self->in_memory (cf::MAP_SWAPPED);
		2306
		2307	# need to save uniques path
		2308	unless ($self->{deny_save}) {
		2309	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2310
		2311	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2312	if $uniq;
		2313	}
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
		2319	$self->clear;
		2320
		2321	$self->unlink_save;
		2322	$self->destroy;
		2323	}
		2324
		2325	my $nuke_counter = "aaaa";
		2326
		2327	sub nuke {
		2328	my ($self) = @_;
		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
		2333	delete $cf::MAP{$self->path};
		2334
		2335	$self->unlink_save;
		2336
		2337	bless $self, "cf::map";
		2338	delete $self->{deny_reset};
		2339	$self->{deny_save} = 1;
		2340	$self->reset_timeout (1);
		2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2342
		2343	$cf::MAP{$self->path} = $self;
		2344	}
		2345
		2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
		2383	}
		2384
		2385	=item cf::map::unique_maps
		2386
		2387	Returns an arrayref of paths of all shared maps that have
		2388	instantiated unique items. May block.
		2389
		2390	=cut
		2391
		2392	sub unique_maps() {
		2393	[
		2394	map {
		2395	utf8::decode $_;
		2396	s/\.map$//; # TODO future compatibility hack
		2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2398	? ()
		2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
		2401	]
		2402	}
		2403
		2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
		2425	s/\.map$// or next;
		2426	utf8::decode $_;
		2427	push @maps, "$dir/$_";
		2428	}
		2429
		2430	push @dirs, map "$dir/$_", @$dirs;
		2431	}
		2432
		2433	\@maps
		2434	}
		2435
		2436	=back
		2437
		2438	=head3 cf::object
		2439
		2440	=cut
		2441
		2442	package cf::object;
		2443
		2444	=over 4
		2445
		2446	=item $ob->inv_recursive
		2447
		2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
		2450
		2451	=cut
		2452
		2453	sub inv_recursive_;
		2454	sub inv_recursive_ {
		2455	map { $_, inv_recursive_ $_->inv } @_
		2456	}
		2457
		2458	sub inv_recursive {
		2459	inv_recursive_ inv $_[0]
		2460	}
		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
		2490	package cf;
896		2491
897	=back	2492	=back
898		2493
899	=head3 cf::object::player	2494	=head3 cf::object::player
900		2495
…		…
905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
906	can be C<undef>. Does the right thing when the player is currently in a	2501	can be C<undef>. Does the right thing when the player is currently in a
907	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
908		2503
909	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
910		2519
911	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
912	# with dialog boxes.	2521	# with dialog boxes.
913	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
914	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
916		2525
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2527
919	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
921	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
924	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
925	}	2553	}
926		2554
927	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
928		2556
929	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2566	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2567	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2568	: $cf::CFG{"may_$access"})
941	}	2569	}
942		2570
		2571	=item $player_object->enter_link
		2572
		2573	Freezes the player and moves him/her to a special map (C<{link}>).
		2574
		2575	The player should be reasonably safe there for short amounts of time (e.g.
		2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
		2579
		2580	Will never block.
		2581
		2582	=item $player_object->leave_link ($map, $x, $y)
		2583
		2584	Moves the player out of the special C<{link}> map onto the specified
		2585	map. If the map is not valid (or omitted), the player will be moved back
		2586	to the location he/she was before the call to C<enter_link>, or, if that
		2587	fails, to the emergency map position.
		2588
		2589	Might block.
		2590
		2591	=cut
		2592
		2593	sub link_map {
		2594	unless ($LINK_MAP) {
		2595	$LINK_MAP = cf::map::find "{link}"
		2596	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2597	$LINK_MAP->load;
		2598	}
		2599
		2600	$LINK_MAP
		2601	}
		2602
		2603	sub cf::object::player::enter_link {
		2604	my ($self) = @_;
		2605
		2606	$self->deactivate_recursive;
		2607
		2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2609
		2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2611	if $self->map && $self->map->{path} ne "{link}";
		2612
		2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
		2614	}
		2615
		2616	sub cf::object::player::leave_link {
		2617	my ($self, $map, $x, $y) = @_;
		2618
		2619	return unless $self->contr->active;
		2620
		2621	my $link_pos = delete $self->{_link_pos};
		2622
		2623	unless ($map) {
		2624	# restore original map position
		2625	($map, $x, $y) = @{ $link_pos || [] };
		2626	$map = cf::map::find $map;
		2627
		2628	unless ($map) {
		2629	($map, $x, $y) = @$EMERGENCY_POSITION;
		2630	$map = cf::map::find $map
		2631	or die "FATAL: cannot load emergency map\n";
		2632	}
		2633	}
		2634
		2635	($x, $y) = (-1, -1)
		2636	unless (defined $x) && (defined $y);
		2637
		2638	# use -1 or undef as default coordinates, not 0, 0
		2639	($x, $y) = ($map->enter_x, $map->enter_y)
		2640	if $x <= 0 && $y <= 0;
		2641
		2642	$map->load;
		2643	$map->load_neighbours;
		2644
		2645	return unless $self->contr->active;
		2646
		2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2648	$self->enter_map ($map, $x, $y);
		2649
		2650	# only activate afterwards, to support waiting in hooks
		2651	$self->activate_recursive;
		2652	}
		2653
		2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2655
		2656	Moves the player to the given map-path and coordinates by first freezing
		2657	her, loading and preparing them map, calling the provided $check callback
		2658	that has to return the map if sucecssful, and then unfreezes the player on
		2659	the new (success) or old (failed) map position. In either case, $done will
		2660	be called at the end of this process.
		2661
		2662	Note that $check will be called with a potentially non-loaded map, so if
		2663	it needs a loaded map it has to call C<< ->load >>.
		2664
		2665	=cut
		2666
		2667	our $GOTOGEN;
		2668
		2669	sub cf::object::player::goto {
		2670	my ($self, $path, $x, $y, $check, $done) = @_;
		2671
		2672	# do generation counting so two concurrent goto's will be executed in-order
		2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2674
		2675	$self->enter_link;
		2676
		2677	(async {
		2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
		2699	my $map = eval {
		2700	my $map = defined $path ? cf::map::find $path : undef;
		2701
		2702	if ($map) {
		2703	$map = $map->customise_for ($self);
		2704	$map = $check->($map) if $check && $map;
		2705	} else {
		2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2707	}
		2708
		2709	$map
		2710	};
		2711
		2712	if ($@) {
		2713	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	LOG llevError | logBacktrace, Carp::longmess $@;
		2715	}
		2716
		2717	if ($gen == $self->{_goto_generation}) {
		2718	delete $self->{_goto_generation};
		2719	$self->leave_link ($map, $x, $y);
		2720	}
		2721
		2722	$done->() if $done;
		2723	})->prio (1);
		2724	}
		2725
		2726	=item $player_object->enter_exit ($exit_object)
		2727
		2728	=cut
		2729
		2730	sub parse_random_map_params {
		2731	my ($spec) = @_;
		2732
		2733	my $rmp = { # defaults
		2734	xsize => (cf::rndm 15, 40),
		2735	ysize => (cf::rndm 15, 40),
		2736	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2737	#layout => string,
		2738	};
		2739
		2740	for (split /\n/, $spec) {
		2741	my ($k, $v) = split /\s+/, $_, 2;
		2742
		2743	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2744	}
		2745
		2746	$rmp
		2747	}
		2748
		2749	sub prepare_random_map {
		2750	my ($exit) = @_;
		2751
		2752	# all this does is basically replace the /! path by
		2753	# a new random map path (?random/...) with a seed
		2754	# that depends on the exit object
		2755
		2756	my $rmp = parse_random_map_params $exit->msg;
		2757
		2758	if ($exit->map) {
		2759	$rmp->{region} = $exit->region->name;
		2760	$rmp->{origin_map} = $exit->map->path;
		2761	$rmp->{origin_x} = $exit->x;
		2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
		2765	}
		2766
		2767	$rmp->{random_seed} ||= $exit->random_seed;
		2768
		2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2770	my $md5 = Digest::MD5::md5_hex $data;
		2771	my $meta = "$RANDOMDIR/$md5.meta";
		2772
		2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2774	aio_write $fh, 0, (length $data), $data, 0;
		2775	undef $fh;
		2776	aio_rename "$meta~", $meta;
		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
		2781	$exit->slaying ("?random/$md5");
		2782	$exit->msg (undef);
		2783	}
		2784	}
		2785	}
		2786
		2787	sub cf::object::player::enter_exit {
		2788	my ($self, $exit) = @_;
		2789
		2790	return unless $self->type == cf::PLAYER;
		2791
		2792	$self->enter_link;
		2793
		2794	(async {
		2795	$Coro::current->{desc} = "enter_exit";
		2796
		2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
		2804	prepare_random_map $exit
		2805	if $exit->slaying eq "/!";
		2806	}
		2807
		2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
		2811
		2812	$self->goto ($map, $x, $y);
		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
		2818	1
		2819	}) {
		2820	$self->message ("Something went wrong deep within the deliantra server. "
		2821	. "I'll try to bring you back to the map you were before. "
		2822	. "Please report this to the dungeon master!",
		2823	cf::NDI_UNIQUE | cf::NDI_RED);
		2824
		2825	warn "ERROR in enter_exit: $@";
		2826	$self->leave_link;
		2827	}
		2828	})->prio (1);
		2829	}
		2830
943	=head3 cf::client	2831	=head3 cf::client
944		2832
945	=over 4	2833	=over 4
946		2834
947	=item $client->send_drawinfo ($text, $flags)	2835	=item $client->send_drawinfo ($text, $flags)
…		…
953		2841
954	sub cf::client::send_drawinfo {	2842	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2843	my ($self, $text, $flags) = @_;
956		2844
957	utf8::encode $text;	2845	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2847	}
960		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
		3036	=item $client->ext_msg ($type, @msg)
		3037
		3038	Sends an ext event to the client.
		3039
		3040	=cut
		3041
		3042	sub cf::client::ext_msg($$@) {
		3043	my ($self, $type, @msg) = @_;
		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
		3048	push @msg, msgtype => "event_$type";
		3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
		3069	}
961		3070
962	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
963		3072
964	Queues a query to the client, calling the given callback with	3073	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>,	3074	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>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		3076
968	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	3078	become reliable at some point in the future.
970		3079
971	=cut	3080	=cut
972		3081
973	sub cf::client::query {	3082	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	3091	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		3093
985	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
987	}	3098	}
988		3099
989	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
990	on_reply => sub {	3106	on_reply => sub {
991	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
992		3108
993	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
994	# get handled first	3110	# get handled first
995	my $queue = delete $ns->{query_queue};	3111	my $queue = delete $ns->{query_queue}
		3112	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		3113
997	(shift @$queue)->[1]->($msg);	3114	(shift @$queue)->[1]->($msg);
		3115	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		3116
999	push @{ $ns->{query_queue} }, @$queue;	3117	push @{ $ns->{query_queue} }, @$queue;
1000		3118
1001	if (@{ $ns->{query_queue} } == @$queue) {	3119	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	3120	if (@$queue) {
…		…
1004	} else {	3122	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	3124	}
1007	}	3125	}
1008	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
1009	);	3153	);
1010		3154
1011	=item $client->coro (\&cb)	3155	=item $client->async (\&cb)
1012		3156
1013	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	3158	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	3159	or loss of connection).
1016		3160
1017	=cut	3161	=cut
1018		3162
1019	sub cf::client::coro {	3163	sub cf::client::async {
1020	my ($self, $cb) = @_;	3164	my ($self, $cb) = @_;
1021		3165
1022	my $coro; $coro = async {	3166	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		3167
1029	$coro->on_destroy (sub {	3168	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	3169	delete $self->{_coro}{$coro+0};
1031	});	3170	});
1032		3171
…		…
1034		3173
1035	$coro	3174	$coro
1036	}	3175	}
1037		3176
1038	cf::client->attach (	3177	cf::client->attach (
1039	on_destroy => sub {	3178	on_client_destroy => sub {
1040	my ($ns) = @_;	3179	my ($ns) = @_;
1041		3180
1042	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1043	},	3182	},
1044	);	3183	);
…		…
1059	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
1061		3200
1062	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
1063		3202
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
1065		3208
1066	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
1067		3210
1068	=pod	3211	=pod
1069		3212
1070	The following fucntions and emthods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
1071		3214
1072	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
1073	cf::object::player player	3220	cf::object::player
1074	cf::player peaceful	3221	player
1075	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
1076		3228
1077	=cut	3229	=cut
1078		3230
1079	for (	3231	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
1081	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
1083	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
1084	) {	3238	) {
1085	no strict 'refs';	3239	no strict 'refs';
1086	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1105		3259
1106	my $qcode = $code;	3260	my $qcode = $code;
1107	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1108	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
1109		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
1110	local $_;	3267	local $_;
1111	local @safe::cf::_safe_eval_args = values %vars;
1112		3268
1113	my $eval =	3269	my $eval =
1114	"do {\n"	3270	"do {\n"
1115	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1116	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
1117	. $code	3273	. $code
1118	. "\n}"	3274	. "\n}"
1119	;	3275	;
1120		3276
		3277	if ($CFG{safe_eval}) {
1121	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
1122	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1123	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
1124		3286
1125	if ($@) {	3287	if ($@) {
1126	warn "$@";	3288	warn "$@";
1127	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
1128	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1147	=cut	3309	=cut
1148		3310
1149	sub register_script_function {	3311	sub register_script_function {
1150	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
1151		3313
1152	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
1153	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
1154	}	3316	}
1155		3317
1156	=back	3318	=back
1157		3319
1158	=cut	3320	=cut
1159		3321
1160	#############################################################################	3322	#############################################################################
		3323	# the server's init and main functions
1161		3324
1162	=head2 EXTENSION DATABASE SUPPORT	3325	sub load_facedata($) {
		3326	my ($path) = @_;
1163		3327
1164	Crossfire maintains a very simple database for extension use. It can	3328	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	3329	# for this (global event?)
1166	excludes objects.	3330	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		3331
1168	The parameter C<$family> should best start with the name of the extension	3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		3333
1171	=over 4	3334	warn "loading facedata from $path\n";
1172		3335
1173	=item $hashref = cf::db_get $family	3336	my $facedata;
		3337	0 < aio_load $path, $facedata
		3338	or die "$path: $!";
1174		3339
1175	Return a hashref for use by the extension C<$family>, which can be	3340	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		3341
1179	=item $value = cf::db_get $family => $key	3342	$facedata->{version} == 2
		3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		3344
1181	Returns a single value from the database	3345	# patch in the exptable
1182		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1183	=item cf::db_put $family => $hashref	3347	$facedata->{resource}{"res/exp_table"} = {
1184		3348	type => FT_RSRC,
1185	Stores the given family hashref into the database. Updates are delayed, if	3349	data => $exp_table,
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3350	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	});	3351	};
		3352	cf::cede_to_tick;
1236		3353
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	3354	{
		3355	my $faces = $facedata->{faceinfo};
1241		3356
1242	sub db_get($;$) {	3357	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		3359
1248	sub db_put($$;$) {	3360	cf::face::set_visibility $idx, $info->{visibility};
1249	if (@_ >= 3) {	3361	cf::face::set_magicmap $idx, $info->{magicmap};
1250	$DB->{$_[0]}{$_[1]} = $_[2];	3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1251	} else {	3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		3364
1257	cf::global->attach (	3365	cf::cede_to_tick;
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	3366	}
		3367
		3368	while (my ($face, $info) = each %$faces) {
		3369	next unless $info->{smooth};
		3370
		3371	my $idx = cf::face::find $face
		3372	or next;
		3373
		3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
		3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3377	} else {
		3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3379	}
		3380
		3381	cf::cede_to_tick;
		3382	}
		3383	}
		3384
		3385	{
		3386	my $anims = $facedata->{animinfo};
		3387
		3388	while (my ($anim, $info) = each %$anims) {
		3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3390	cf::cede_to_tick;
		3391	}
		3392
		3393	cf::anim::invalidate_all; # d'oh
		3394	}
		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
		3415	1
		3416	}
		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
		3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
		3461	load_resource_file "$MAPDIR/regions"
		3462	or die "unable to load regions file\n";
		3463
		3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
		3468	}
		3469
		3470	sub reload_facedata {
		3471	load_facedata "$DATADIR/facedata"
		3472	or die "unable to load facedata\n";
		3473	}
		3474
		3475	sub reload_archetypes {
		3476	load_resource_file "$DATADIR/archetypes"
		3477	or die "unable to load archetypes\n";
		3478	}
		3479
		3480	sub reload_treasures {
		3481	load_resource_file "$DATADIR/treasures"
		3482	or die "unable to load treasurelists\n";
		3483	}
		3484
		3485	sub reload_resources {
		3486	warn "reloading resource files...\n";
		3487
		3488	reload_facedata;
		3489	reload_archetypes;
		3490	reload_regions;
		3491	reload_treasures;
		3492
		3493	warn "finished reloading resource files\n";
		3494	}
		3495
		3496	sub reload_config {
		3497	warn "reloading config file...\n";
		3498
		3499	open my $fh, "<:utf8", "$CONFDIR/config"
		3500	or return;
		3501
		3502	local $/;
		3503	*CFG = YAML::XS::Load scalar <$fh>;
		3504
		3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3506
		3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3509
		3510	if (exists $CFG{mlockall}) {
		3511	eval {
		3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3513	and die "WARNING: m(un)lockall failed: $!\n";
		3514	};
		3515	warn $@ if $@;
		3516	}
		3517
		3518	warn "finished reloading resource files\n";
		3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
		3547	}
		3548
		3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
		3559	# we must not ever block the main coroutine
		3560	local $Coro::idle = sub {
		3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3562	(async {
		3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
		3565	})->prio (Coro::PRIO_MAX);
1262	);	3566	};
		3567
		3568	evthread_start IO::AIO::poll_fileno;
		3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
		3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
		3591	load_extensions;
		3592
		3593	utime time, time, $RUNTIMEFILE;
		3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
1263	}	3606	}
1264		3607
1265	#############################################################################	3608	#############################################################################
1266	# the server's main()	3609	# initialisation and cleanup
1267		3610
1268	sub cfg_load {	3611	# install some emergency cleanup handlers
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3612	BEGIN {
		3613	our %SIGWATCHER = ();
		3614	for my $signal (qw(INT HUP TERM)) {
		3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3616	cf::cleanup "SIG$signal";
		3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1270	or return;	3632	or return;
1271		3633
1272	local $/;	3634	my $value = $cf::RUNTIME + 90 + 10;
1273	*CFG = YAML::Syck::Load <$fh>;	3635	# 10 is the runtime save interval, for a monotonic clock
1274	}	3636	# 60 allows for the watchdog to kill the server.
1275		3637
1276	sub main {	3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1277	cfg_load;	3639	and return;
1278	db_load;
1279	load_extensions;
1280	Event::loop;
1281	}
1282		3640
1283	#############################################################################	3641	# always fsync - this file is important
1284	# initialisation	3642	aio_fsync $fh
		3643	and return;
1285		3644
1286	sub perl_reload() {	3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
		3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
		3707	}
		3708
		3709	sub emergency_save() {
		3710	my $freeze_guard = cf::freeze_mainloop;
		3711
		3712	warn "emergency_perl_save: enter\n";
		3713
		3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
		3720	# use a peculiar iteration method to avoid tripping on perl
		3721	# refcount bugs in for. also avoids problems with players
		3722	# and maps saved/destroyed asynchronously.
		3723	warn "emergency_perl_save: begin player save\n";
		3724	for my $login (keys %cf::PLAYER) {
		3725	my $pl = $cf::PLAYER{$login} or next;
		3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3728	$pl->save;
		3729	}
		3730	warn "emergency_perl_save: end player save\n";
		3731
		3732	warn "emergency_perl_save: begin map save\n";
		3733	for my $path (keys %cf::MAP) {
		3734	my $map = $cf::MAP{$path} or next;
		3735	$map->valid or next;
		3736	$map->save;
		3737	}
		3738	warn "emergency_perl_save: end map save\n";
		3739
		3740	warn "emergency_perl_save: begin database checkpoint\n";
		3741	BDB::db_env_txn_checkpoint $DB_ENV;
		3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
		3747	};
		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
		3754	warn "emergency_perl_save: leave\n";
		3755	}
		3756
		3757	sub post_cleanup {
		3758	my ($make_core) = @_;
		3759
		3760	warn Carp::longmess "post_cleanup backtrace"
		3761	if $make_core;
		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
		3790	warn "cleared package $pkg\n";#d#
		3791	}
		3792
		3793	sub do_reload_perl() {
1287	# can/must only be called in main	3794	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3795	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3796	warn "can only reload from main coroutine";
1290	return;	3797	return;
1291	}	3798	}
1292		3799
		3800	return if $RELOAD++;
		3801
		3802	my $t1 = AE::time;
		3803
		3804	while ($RELOAD) {
1293	warn "reloading...";	3805	warn "reloading...";
1294		3806
1295	local $FREEZE = 1;	3807	warn "entering sync_job";
		3808
		3809	cf::sync_job {
		3810	cf::write_runtime_sync; # external watchdog should not bark
1296	cf::emergency_save;	3811	cf::emergency_save;
		3812	cf::write_runtime_sync; # external watchdog should not bark
1297		3813
1298	eval {	3814	warn "syncing database to disk";
		3815	BDB::db_env_txn_checkpoint $DB_ENV;
		3816
1299	# if anything goes wrong in here, we should simply crash as we already saved	3817	# if anything goes wrong in here, we should simply crash as we already saved
1300		3818
1301	# cancel all watchers	3819	warn "flushing outstanding aio requests";
1302	for (Event::all_watchers) {	3820	while (IO::AIO::nreqs || BDB::nreqs) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3821	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	}	3822	}
1329		3823
1330	Symbol::delete_package $k;	3824	warn "cancelling all extension coros";
		3825	$_->cancel for values %EXT_CORO;
		3826	%EXT_CORO = ();
		3827
		3828	warn "removing commands";
		3829	%COMMAND = ();
		3830
		3831	warn "removing ext/exti commands";
		3832	%EXTCMD = ();
		3833	%EXTICMD = ();
		3834
		3835	warn "unloading/nuking all extensions";
		3836	for my $pkg (@EXTS) {
		3837	warn "... unloading $pkg";
		3838
		3839	if (my $cb = $pkg->can ("unload")) {
		3840	eval {
		3841	$cb->($pkg);
		3842	1
		3843	} or warn "$pkg unloaded, but with errors: $@";
		3844	}
		3845
		3846	warn "... clearing $pkg";
		3847	clear_package $pkg;
1331	}	3848	}
1332		3849
1333	# sync database to disk	3850	warn "unloading all perl modules loaded from $LIBDIR";
1334	cf::db_sync;	3851	while (my ($k, $v) = each %INC) {
1335	IO::AIO::flush;	3852	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1336		3853
		3854	warn "... unloading $k";
		3855	delete $INC{$k};
		3856
		3857	$k =~ s/\.pm$//;
		3858	$k =~ s/\//::/g;
		3859
		3860	if (my $cb = $k->can ("unload_module")) {
		3861	$cb->();
		3862	}
		3863
		3864	clear_package $k;
		3865	}
		3866
1337	# get rid of safe::, as good as possible	3867	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3868	clear_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3869	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3870
1341	# remove register_script_function callbacks	3871	warn "unloading cf.pm \"a bit\"";
1342	# TODO
1343
1344	# unload cf.pm "a bit"
1345	delete $INC{"cf.pm"};	3872	delete $INC{"cf.pm"};
		3873	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1346		3874
1347	# don't, removes xs symbols, too,	3875	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3876	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3877	#clear_package __PACKAGE__;
1350		3878
1351	# reload cf.pm	3879	warn "unload completed, starting to reload now";
		3880
1352	warn "reloading cf.pm";	3881	warn "reloading cf.pm";
1353	require cf;	3882	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3883	cf::_connect_to_perl_1;
1355		3884
1356	# load config and database again	3885	warn "loading config and database again";
1357	cf::cfg_load;	3886	cf::reload_config;
1358	cf::db_load;
1359		3887
1360	# load extensions
1361	warn "load extensions";	3888	warn "loading extensions";
1362	cf::load_extensions;	3889	cf::load_extensions;
1363		3890
1364	# reattach attachments to objects	3891	if ($REATTACH_ON_RELOAD) {
		3892	warn "reattaching attachments to objects/players";
		3893	_global_reattach; # objects, sockets
		3894	warn "reattaching attachments to maps";
		3895	reattach $_ for values %MAP;
		3896	warn "reattaching attachments to players";
		3897	reattach $_ for values %PLAYER;
		3898	}
		3899
		3900	warn "running post_init jobs";
		3901	(pop @POST_INIT)->(1) while @POST_INIT;
		3902
		3903	warn "leaving sync_job";
		3904
		3905	1
		3906	} or do {
		3907	warn $@;
		3908	cf::cleanup "error while reloading, exiting.";
		3909	};
		3910
1365	warn "reattach";	3911	warn "reloaded";
1366	_global_reattach;	3912	--$RELOAD;
		3913	}
		3914
		3915	$t1 = AE::time - $t1;
		3916	warn "reload completed in ${t1}s\n";
		3917	};
		3918
		3919	our $RELOAD_WATCHER; # used only during reload
		3920
		3921	sub reload_perl() {
		3922	# doing reload synchronously and two reloads happen back-to-back,
		3923	# coro crashes during coro_state_free->destroy here.
		3924
		3925	$RELOAD_WATCHER ||= cf::async {
		3926	Coro::AIO::aio_wait cache_extensions;
		3927
		3928	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3929	do_reload_perl;
		3930	undef $RELOAD_WATCHER;
		3931	};
1367	};	3932	};
		3933	}
1368		3934
1369	if ($@) {	3935	register_command "reload" => sub {
1370	warn $@;	3936	my ($who, $arg) = @_;
1371	warn "error while reloading, exiting.";
1372	exit 1;
1373	}
1374		3937
1375	warn "reloaded successfully";	3938	if ($who->flag (FLAG_WIZ)) {
		3939	$who->message ("reloading server.");
		3940	async {
		3941	$Coro::current->{desc} = "perl_reload";
		3942	reload_perl;
		3943	};
		3944	}
1376	};	3945	};
1377		3946
1378	register "<global>", __PACKAGE__;
1379
1380	register_command "perl-reload" => sub {
1381	my ($who, $arg) = @_;
1382
1383	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");
1387	}
1388	};
1389
1390	unshift @INC, $LIBDIR;	3947	unshift @INC, $LIBDIR;
1391		3948
1392	$TICK_WATCHER = Event->timer (	3949	my $bug_warning = 0;
1393	reentrant => 0,	3950
1394	prio => 0,	3951	our @WAIT_FOR_TICK;
1395	at => $NEXT_TICK || $TICK,	3952	our @WAIT_FOR_TICK_BEGIN;
1396	data => WF_AUTOCANCEL,	3953
1397	cb => sub {	3954	sub wait_for_tick {
1398	unless ($FREEZE) {	3955	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3956
		3957	my $signal = new Coro::Signal;
		3958	push @WAIT_FOR_TICK, $signal;
		3959	$signal->wait;
		3960	}
		3961
		3962	sub wait_for_tick_begin {
		3963	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3964
		3965	my $signal = new Coro::Signal;
		3966	push @WAIT_FOR_TICK_BEGIN, $signal;
		3967	$signal->wait;
		3968	}
		3969
		3970	sub tick {
		3971	if ($Coro::current != $Coro::main) {
		3972	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3973	unless ++$bug_warning > 10;
		3974	return;
		3975	}
		3976
1399	cf::server_tick; # one server iteration	3977	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	3978
		3979	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3980
		3981	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3982	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3983	Coro::async_pool {
		3984	$Coro::current->{desc} = "runtime saver";
		3985	write_runtime_sync
		3986	or warn "ERROR: unable to write runtime file: $!";
1401	}	3987	};
1402
1403	$NEXT_TICK += $TICK;
1404
1405	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407
1408	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;
1410	},	3988	}
1411	);
1412		3989
		3990	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3991	$sig->send;
		3992	}
		3993	while (my $sig = shift @WAIT_FOR_TICK) {
		3994	$sig->send;
		3995	}
		3996
		3997	$LOAD = ($NOW - $TICK_START) / $TICK;
		3998	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3999
		4000	if (0) {
		4001	if ($NEXT_TICK) {
		4002	my $jitter = $TICK_START - $NEXT_TICK;
		4003	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4004	warn "jitter $JITTER\n";#d#
		4005	}
		4006	}
		4007	}
		4008
		4009	{
		4010	# configure BDB
		4011
		4012	BDB::min_parallel 16;
		4013	BDB::max_poll_reqs $TICK * 0.1;
		4014	$AnyEvent::BDB::WATCHER->priority (1);
		4015
		4016	unless ($DB_ENV) {
		4017	$DB_ENV = BDB::db_env_create;
		4018	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4019	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4020	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4021	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4022	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4023
		4024	cf::sync_job {
		4025	eval {
		4026	BDB::db_env_open
		4027	$DB_ENV,
		4028	$BDBDIR,
		4029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4031	0666;
		4032
		4033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4034	};
		4035
		4036	cf::cleanup "db_env_open(db): $@" if $@;
		4037	};
		4038	}
		4039
		4040	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4041	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4042	};
		4043	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4044	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4045	};
		4046	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4047	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4048	};
		4049	}
		4050
		4051	{
		4052	# configure IO::AIO
		4053
		4054	IO::AIO::min_parallel 8;
1413	IO::AIO::max_poll_time $TICK * 0.2;	4055	IO::AIO::max_poll_time $TICK * 0.1;
		4056	undef $AnyEvent::AIO::WATCHER;
		4057	}
1414		4058
1415	Event->io (fd => IO::AIO::poll_fileno,	4059	my $_log_backtrace;
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,
1419	cb => \&IO::AIO::poll_cb);
1420		4060
1421	# we must not ever block the main coroutine	4061	sub _log_backtrace {
1422	$Coro::idle = sub {	4062	my ($msg, @addr) = @_;
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	4063
1424	warn "FATAL: Coro::idle was called, major BUG\n";	4064	$msg =~ s/\n//;
1425	(Coro::unblock_sub {	4065
1426	Event::one_event;	4066	# limit the # of concurrent backtraces
1427	})->();	4067	if ($_log_backtrace < 2) {
1428	};	4068	++$_log_backtrace;
		4069	my $perl_bt = Carp::longmess $msg;
		4070	async {
		4071	$Coro::current->{desc} = "abt $msg";
		4072
		4073	my @bt = fork_call {
		4074	@addr = map { sprintf "%x", $_ } @addr;
		4075	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4076	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4077	or die "addr2line: $!";
		4078
		4079	my @funcs;
		4080	my @res = <$fh>;
		4081	chomp for @res;
		4082	while (@res) {
		4083	my ($func, $line) = splice @res, 0, 2, ();
		4084	push @funcs, "[$func] $line";
		4085	}
		4086
		4087	@funcs
		4088	};
		4089
		4090	LOG llevInfo, "[ABT] $perl_bt\n";
		4091	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4092	LOG llevInfo, "[ABT] $_\n" for @bt;
		4093	--$_log_backtrace;
		4094	};
		4095	} else {
		4096	LOG llevInfo, "[ABT] $msg\n";
		4097	LOG llevInfo, "[ABT] [suppressed]\n";
		4098	}
		4099	}
		4100
		4101	# load additional modules
		4102	require "cf/$_.pm" for @EXTRA_MODULES;
		4103	cf::_connect_to_perl_2;
		4104
		4105	END { cf::emergency_save }
1429		4106
1430	1	4107	1
1431		4108

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