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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.575 by root, Sat Aug 13 20:20:30 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Fcntl;	56	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
23	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
24		62
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
26		64
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
28	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29		69
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
31		78
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
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
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
44	our $NOW;	138	our $NOW;
45		139
46	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
47		143
48	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
49	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
50		146
51	our %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
52	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
53	our $FREEZE;	149	our $JITTER; # average jitter
		150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
54		159
55	binmode STDOUT;	160	binmode STDOUT;
56	binmode STDERR;	161	binmode STDERR;
57		162
58	# read virtual server time, if available	163	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
63	}	168	}
64		169
65	mkdir cf::localdir;	170	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		171
70	our %EXT_CORO;	172	mkdir $_
		173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
		175	our $EMERGENCY_POSITION;
		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
71		182
72	#############################################################################	183	#############################################################################
73		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
74	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
75		197
76	=over 4	198	=over 4
77		199
78	=item $cf::UPTIME	200	=item $cf::UPTIME
79		201
80	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
81		218
82	=item $cf::RUNTIME	219	=item $cf::RUNTIME
83		220
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	222	every server tick.
86		223
87	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		227
89	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
91		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
92	=item $cf::NOW	239	=item $cf::LOAD
93		240
94	The time of the last (current) server tick.	241	The raw value load value from the last tick.
95
96	=item $cf::TICK
97
98	The interval between server ticks, in seconds.
99		242
100	=item %cf::CFG	243	=item %cf::CFG
101		244
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	246	from wherever your confdir points to.
104		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
105	=back	283	=back
106		284
107	=cut	285	=cut
108		286
109	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
110	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
111	my $msg = join "", @_;	294	my $msg = join "", @_;
112	utf8::encode $msg;
113		295
114	$msg .= "\n"	296	$msg .= "\n"
115	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
116		298
117	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
118	};	300
119	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
120		317
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		325
128	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	327	# within the Safe compartment.
130	for my $pkg (qw(	328	for my $pkg (qw(
131	cf::global cf::attachable	329	cf::global cf::attachable
132	cf::object cf::object::player	330	cf::object cf::object::player
133	cf::client cf::player	331	cf::client cf::player
134	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
135	cf::map cf::party cf::region	334	cf::party cf::region
136	)) {	335	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	337	}
140		338
141	$Event::DIED = sub {	339	$EV::DIED = sub {
142	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
143	};	341	};
144		342
145	my %ext_pkg;	343	#############################################################################
146	my @exts;	344
147	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
148		349
149	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
150		351
151	=over 4	352	=over 4
152		353
153	=cut	354	=item dumpval $ref
154		355
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
156		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
157	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
158		392
159	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
160		394
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	395	=item $json = cf::encode_json $ref
169		396
170	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
171		398
172	=cut	399	=cut
173		400
174	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		402
179	# main coro must never ever "block" except in Event	403	sub encode_json($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	404	sub decode_json($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
		466	}
		467
		468	=item cf::lock_wait $string
		469
		470	Wait until the given lock is available. See cf::lock_acquire.
		471
		472	=item my $lock = cf::lock_acquire $string
		473
		474	Wait until the given lock is available and then acquires it and returns
		475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		476	for example when the coroutine gets canceled), the lock is automatically
		477	returned.
		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
		482	Lock names should begin with a unique identifier (for example, cf::map::find
		483	uses map_find and cf::map::load uses map_load).
		484
		485	=item $locked = cf::lock_active $string
		486
		487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
		492
		493	sub lock_wait($) {
		494	$LOCKS->wait ($_[0]);
		495	}
		496
		497	sub lock_acquire($) {
		498	$LOCKS->guard ($_[0])
		499	}
		500
		501	sub lock_active($) {
		502	$LOCKS->count ($_[0]) < 1
		503	}
		504
		505	sub freeze_mainloop {
		506	tick_inhibit_inc;
		507
		508	&Guard::guard (\&tick_inhibit_dec);
		509	}
		510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
		578	}
		579	};
		580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
		594	}
		595
		596	=item cf::async { BLOCK }
		597
		598	Currently the same as Coro::async_pool, meaning you cannot use
		599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
		601
		602	=cut
		603
		604	BEGIN { *async = \&Coro::async_pool }
		605
		606	=item cf::sync_job { BLOCK }
		607
		608	The design of Deliantra requires that the main coroutine ($Coro::main)
		609	is always able to handle events or runnable, as Deliantra is only
		610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
		612
		613	If it must be done, put the blocking parts into C<sync_job>. This will run
		614	the given BLOCK in another coroutine while waiting for the result. The
		615	server will be frozen during this time, so the block should either finish
		616	fast or be very important.
		617
		618	=cut
		619
182	sub sync_job(&) {	620	sub sync_job(&) {
183	my ($job) = @_;	621	my ($job) = @_;
184		622
		623	if (in_main) {
		624	my $time = AE::time;
		625
		626	# this is the main coro, too bad, we have to block
		627	# till the operation succeeds, freezing the server :/
		628
		629	#LOG llevError, Carp::longmess "sync job";#d#
		630
		631	my $freeze_guard = freeze_mainloop;
		632
185	my $busy = 1;	633	my $busy = 1;
186	my @res;	634	my @res;
187		635
188	local $FREEZE = 1;	636	(async {
189		637	$Coro::current->desc ("sync job coro");
190	my $coro = Coro::async {
191	@res = eval { $job->() };	638	@res = eval { $job->() };
192	warn $@ if $@;	639	error $@ if $@;
193	undef $busy;	640	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {
197	$coro->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
		642
198	while ($busy) {	643	while ($busy) {
		644	if (Coro::nready) {
199	Coro::cede_notself;	645	Coro::cede_notself;
200	Event::one_event unless Coro::nready;	646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
201	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
		654
		655	wantarray ? @res : $res[0]
202	} else {	656	} else {
203	$coro->join;	657	# we are in another coroutine, how wonderful, everything just works
		658
		659	$job->()
204	}	660	}
205
206	wantarray ? @res : $res[0]
207	}	661	}
208		662
209	=item $coro = cf::coro { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
210		664
211	Creates and returns a new coro. This coro is automcatially being canceled	665	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	666	extension calling this is being unloaded.
213		667
214	=cut	668	=cut
215		669
216	sub coro(&) {	670	sub async_ext(&) {
217	my $cb = shift;	671	my $cb = shift;
218		672
219	my $coro; $coro = async {	673	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		674
226	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
228	});	677	});
229	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
230		679
231	$coro	680	$coro
232	}	681	}
233		682
		683	=item fork_call { }, @args
		684
		685	Executes the given code block with the given arguments in a seperate
		686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
		689
		690	=cut
		691
		692	sub post_fork {
		693	reset_signals;
		694	}
		695
		696	sub fork_call(&@) {
		697	my ($cb, @args) = @_;
		698
		699	# we seemingly have to make a local copy of the whole thing,
		700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
		712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
		875	}
		876
		877	=item cf::datalog type => key => value, ...
		878
		879	Log a datalog packet of the given type with the given key-value pairs.
		880
		881	=cut
		882
		883	sub datalog($@) {
		884	my ($type, %kv) = @_;
		885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		886	}
		887
234	=back	888	=back
235		889
236	=cut	890	=cut
237		891
238	#############################################################################	892	#############################################################################
239		893
240	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
241		895
242	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
243	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
245		899
246	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	902	Deliantra).
249		903
250	=over 4	904	=over 4
251		905
252	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
253		907
…		…
297	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
298		952
299	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
300	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
301		955
302	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
303	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
304		958
305	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
306		960
307	=over 4	961	=over 4
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	1022	our @CB_MAP = ();
369		1023
370	my %attachment;	1024	my %attachment;
371		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
372	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
374		1034
375	use sort 'stable';	1035	use sort 'stable';
376		1036
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
411		1071
412	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		1076
417	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
419		1079
420	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
425		1085
426	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
427	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
428		1088
429	} elsif (ref $type) {	1089	} elsif (ref $type) {
430	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
431		1091
432	} else {	1092	} else {
433	shift @arg;	1093	shift @arg;
434	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
435	}	1095	}
436	}	1096	}
437	}	1097	}
438		1098
439	sub _object_attach {	1099	sub _object_attach {
…		…
449	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
450	}	1110	}
451		1111
452	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
453	} else {	1113	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
455	}	1115	}
456		1116
457	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
458	}	1118	}
459		1119
…		…
461	if (ref $_[0]) {	1121	if (ref $_[0]) {
462	_object_attach @_;	1122	_object_attach @_;
463	} else {	1123	} else {
464	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
465	}	1125	}
		1126	_recalc_want;
466	};	1127	};
467		1128
468	# all those should be optimised	1129	# all those should be optimised
469	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
474	reattach ($obj);	1135	reattach ($obj);
475	} else {	1136	} else {
476	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
477	}	1138	}
		1139	_recalc_want;
478	};	1140	};
479		1141
480	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
482		1144
…		…
497	";	1159	";
498	die if $@;	1160	die if $@;
499	}	1161	}
500		1162
501	our $override;	1163	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		1165
504	sub override {	1166	sub override {
505	$override = 1;	1167	$override = 1;
506	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
507	}	1169	}
508		1170
509	sub do_invoke {	1171	sub do_invoke {
510	my $event = shift;	1172	my $event = shift;
511	my $callbacks = shift;	1173	my $callbacks = shift;
512		1174
513	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
514		1176
515	local $override;	1177	local $override;
516		1178
517	for (@$callbacks) {	1179	for (@$callbacks) {
518	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
519		1181
520	if ($@) {	1182	if ($@) {
521	warn "$@";
522	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
523	override;	1184	override;
524	}	1185	}
525		1186
526	return 1 if $override;	1187	return 1 if $override;
527	}	1188	}
528		1189
529	0	1190	0
530	}	1191	}
531		1192
532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
533		1194
534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
535		1196
536	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
537		1198
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		1202
542	=back	1203	=back
543		1204
544	=cut	1205	=cut
545		1206
546	#############################################################################	1207	#############################################################################
547	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
548		1251
549	sub reattach {	1252	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	1254	my ($obj) = @_;
		1255
		1256	# no longer needed after getting rid of delete_package?
		1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		1258
553	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
554		1260
555	@$registry = ();	1261	@$registry = ();
556		1262
…		…
561	for (@$attach) {	1267	for (@$attach) {
562	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
563	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
564	}	1270	}
565	} else {	1271	} else {
566	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
567	}	1273	}
568	}	1274	}
569	}	1275	}
570		1276
571	cf::attachable->attach (	1277	cf::attachable->attach (
572	prio => -1000000,	1278	prio => -1000000,
573	on_instantiate => sub {	1279	on_instantiate => sub {
574	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
575		1281
576	$data = from_json $data;	1282	$data = decode_json $data;
577		1283
578	for (@$data) {	1284	for (@$data) {
579	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
580		1286
581	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
597	sub object_freezer_save {	1303	sub object_freezer_save {
598	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
599		1305
600	sync_job {	1306	sync_job {
601	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
602	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
603	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
604		1312
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1316	if ($cf::USE_FSYNC) {
		1317	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;
608	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
609	close $fh;	1320	aio_close $fh;
610		1321
611	if (@$objs) {	1322	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
		1327	if ($cf::USE_FSYNC) {
		1328	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;
616	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
617	close $fh;	1331	aio_close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
619	}	1333	}
620	} else {	1334	} else {
621	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
622	}	1336	}
623		1337
624	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
625	} else {	1342	} else {
626	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
627	}	1344	}
628	} else {	1345	} else {
629	aio_unlink $filename;	1346	aio_unlink $filename;
630	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
631	}	1348	}
632	}	1349	};
633	}	1350	}
634		1351
635	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
637		1354
…		…
649	or return;	1366	or return;
650		1367
651	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
653	or return;	1370	or return;
		1371
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
655	}	1374	}
656		1375
		1376	utf8::decode (my $decname = $filename);
		1377	trace sprintf "loading %s (%d,%d)\n",
		1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
657	return ($data, $av);	1381	($data, $av)
658	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
659		1389
660	#############################################################################	1390	#############################################################################
661	# command handling &c	1391	# command handling &c
662		1392
663	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1407	}
678		1408
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1410
681	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
682		1416
683	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
684	called.	1418	called.
685		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
686	=cut	1431	=cut
687		1432
688	sub register_extcmd {	1433	sub register_extcmd {
689	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
690		1435
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
695	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
696		1446
697	cf::player->attach (	1447	cf::player->attach (
698	on_command => sub {	1448	on_unknown_command => sub {
699	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
700		1450
701	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
702	or return;	1452	or return;
703		1453
…		…
708	cf::override;	1458	cf::override;
709	},	1459	},
710	on_extcmd => sub {	1460	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
712		1462
713	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1464
715	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) =
		1467	"ARRAY" eq ref $msg
		1468	? @$msg
		1469	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1470
		1471	my @reply;
		1472
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
721	} else {	1480	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1482	}
724		1483
725	cf::override;	1484	cf::override;
726	},	1485	},
727	);	1486	);
728		1487
729	sub register {	1488	# "readahead" all extensions
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	1489	sub cache_extensions {
736	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
737		1491
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
739	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
740	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743
744	warn "loading '$path' into '$pkg'\n";
745
746	open my $fh, "<:utf8", $path
747	or die "$path: $!";
748
749	my $source =
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754
755	eval $source
756	or die $@ ? "$path: $@\n"
757	: "extension disabled.\n";
758
759	push @exts, $pkg;
760	$ext_pkg{$base} = $pkg;
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }
778
779	# remove commands
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}	1495	}
788	}	1496	};
789		1497
790	# remove extcmds	1498	$grp
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	1499	}
804		1500
805	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
806	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	1508	next unless -r $path;
808	eval {	1509
809	load_extension $ext;	1510	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1511	my $base = $1;
		1512	my $pkg = $1;
		1513	$pkg =~ s/[^[:word:]]/_/g;
		1514	$pkg = "ext::$pkg";
		1515
		1516	open my $fh, "<:utf8", $path
		1517	or die "$path: $!";
		1518
		1519	my $source = do { local $/; <$fh> };
		1520
		1521	my %ext = (
		1522	path => $path,
		1523	base => $base,
		1524	pkg => $pkg,
		1525	);
		1526
		1527	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1528	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1529
		1530	$ext{source} =
		1531	"package $pkg; use common::sense;\n"
		1532	. "#line 1 \"$path\"\n{\n"
		1533	. $source
		1534	. "\n};\n1";
		1535
		1536	$todo{$base} = \%ext;
		1537	}
		1538
		1539	my $pass = 0;
		1540	my %done;
		1541	while (%todo) {
		1542	my $progress;
		1543
		1544	++$pass;
		1545
		1546	ext:
		1547	while (my ($k, $v) = each %todo) {
		1548	for (split /,\s*/, $v->{meta}{depends}) {
		1549	next ext
		1550	unless exists $done{$_};
		1551	}
		1552
		1553	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1554
		1555	my $active = eval $v->{source};
		1556
		1557	if (length $@) {
		1558	error "$v->{path}: $@\n";
		1559
		1560	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1561	if exists $v->{meta}{mandatory};
		1562
		1563	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1564	delete $todo{$k};
		1565	} else {
		1566	$done{$k} = delete $todo{$k};
		1567	push @EXTS, $v->{pkg};
		1568	$progress = 1;
		1569
		1570	info "$v->{base}: extension inactive.\n"
		1571	unless $active;
		1572	}
810	1	1573	}
811	} or warn "$ext not loaded: $@";	1574
		1575	unless ($progress) {
		1576	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1577
		1578	while (my ($k, $v) = each %todo) {
		1579	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1580	if exists $v->{meta}{mandatory};
		1581	}
		1582
		1583	last;
		1584	}
		1585	}
812	}	1586	};
813	}	1587	}
814		1588
815	#############################################################################	1589	#############################################################################
816	# load/save/clean perl data associated with a map
817		1590
818	*cf::mapsupport::on_clean = sub {	1591	=back
		1592
		1593	=head2 CORE EXTENSIONS
		1594
		1595	Functions and methods that extend core deliantra objects.
		1596
		1597	=cut
		1598
		1599	package cf::player;
		1600
		1601	use Coro::AIO;
		1602
		1603	=head3 cf::player
		1604
		1605	=over 4
		1606
		1607	=item cf::player::num_playing
		1608
		1609	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1610
		1611	=cut
		1612
		1613	sub num_playing {
		1614	scalar grep
		1615	$_->ob->map
		1616	&& !$_->hidden
		1617	&& !$_->ob->flag (cf::FLAG_WIZ),
		1618	cf::player::list
		1619	}
		1620
		1621	=item cf::player::find $login
		1622
		1623	Returns the given player object, loading it if necessary (might block).
		1624
		1625	=cut
		1626
		1627	sub playerdir($) {
		1628	"$PLAYERDIR/"
		1629	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1630	}
		1631
		1632	sub path($) {
		1633	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1634
		1635	(playerdir $login) . "/playerdata"
		1636	}
		1637
		1638	sub find_active($) {
		1639	$cf::PLAYER{$_[0]}
		1640	and $cf::PLAYER{$_[0]}->active
		1641	and $cf::PLAYER{$_[0]}
		1642	}
		1643
		1644	sub exists($) {
819	my ($map) = @_;	1645	my ($login) = @_;
820		1646
821	my $path = $map->tmpname;	1647	$cf::PLAYER{$login}
822	defined $path or return;	1648	or !aio_stat path $login
823
824	unlink "$path.pst";
825	};
826
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);
828
829	#############################################################################
830	# load/save perl data associated with player->ob objects
831
832	sub all_objects(@) {
833	@_, map all_objects ($_->inv), @_
834	}	1649	}
835		1650
836	# TODO: compatibility cruft, remove when no longer needed	1651	sub find($) {
		1652	return $cf::PLAYER{$_[0]} || do {
		1653	my $login = $_[0];
		1654
		1655	my $guard = cf::lock_acquire "user_find:$login";
		1656
		1657	$cf::PLAYER{$_[0]} || do {
		1658	# rename old playerfiles to new ones
		1659	#TODO: remove when no longer required
		1660	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1661	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1662	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1663	aio_unlink +(playerdir $login) . "/$login.pl";
		1664
		1665	my $f = new_from_file cf::object::thawer path $login
		1666	or return;
		1667
		1668	my $pl = cf::player::load_pl $f
		1669	or return;
		1670
		1671	local $cf::PLAYER_LOADING{$login} = $pl;
		1672	$f->resolve_delayed_derefs;
		1673	$cf::PLAYER{$login} = $pl
		1674	}
		1675	}
		1676	}
		1677
837	cf::player->attach (	1678	cf::player->attach (
838	on_load => sub {	1679	on_load => sub {
839	my ($pl, $path) = @_;	1680	my ($pl, $path) = @_;
840		1681
841	for my $o (all_objects $pl->ob) {	1682	# restore slots saved in save, below
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1683	my $slots = delete $pl->{_slots};
843	$o->set_ob_key_value ("_perl_data");
844		1684
845	%$o = %{ Storable::thaw pack "H*", $value };	1685	$pl->ob->current_weapon ($slots->[0]);
846	}	1686	$pl->combat_ob ($slots->[1]);
847	}	1687	$pl->ranged_ob ($slots->[2]);
848	},	1688	},
849	);	1689	);
850		1690
851	#############################################################################	1691	sub save($) {
		1692	my ($pl) = @_;
852		1693
853	=head2 CORE EXTENSIONS	1694	return if $pl->{deny_save};
854		1695
855	Functions and methods that extend core crossfire objects.	1696	my $path = path $pl;
		1697	my $guard = cf::lock_acquire "user_save:$path";
856		1698
857	=head3 cf::player	1699	return if $pl->{deny_save};
		1700
		1701	aio_mkdir playerdir $pl, 0770;
		1702	$pl->{last_save} = $cf::RUNTIME;
		1703
		1704	cf::get_slot 0.01;
		1705
		1706	# save slots, to be restored later
		1707	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1708
		1709	$pl->save_pl ($path);
		1710	cf::cede_to_tick;
		1711	}
		1712
		1713	sub new($) {
		1714	my ($login) = @_;
		1715
		1716	my $self = create;
		1717
		1718	$self->ob->name ($login);
		1719	$self->{deny_save} = 1;
		1720
		1721	$cf::PLAYER{$login} = $self;
		1722
		1723	$self
		1724	}
		1725
		1726	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1727
		1728	=cut
		1729
		1730	sub send_msg {
		1731	my $ns = shift->ns
		1732	or return;
		1733	$ns->send_msg (@_);
		1734	}
		1735
		1736	=item $pl->quit_character
		1737
		1738	Nukes the player without looking back. If logged in, the connection will
		1739	be destroyed. May block for a long time.
		1740
		1741	=cut
		1742
		1743	sub quit_character {
		1744	my ($pl) = @_;
		1745
		1746	my $name = $pl->ob->name;
		1747
		1748	$pl->{deny_save} = 1;
		1749	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1750
		1751	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1752	$pl->deactivate;
		1753
		1754	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1755	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1756	ext::highscore::check ($pl->ob);
		1757
		1758	$pl->ns->destroy if $pl->ns;
		1759
		1760	my $path = playerdir $pl;
		1761	my $temp = "$path~$cf::RUNTIME~deleting~";
		1762	aio_rename $path, $temp;
		1763	delete $cf::PLAYER{$pl->ob->name};
		1764	$pl->destroy;
		1765
		1766	my $prefix = qr<^~\Q$name\E/>;
		1767
		1768	# nuke player maps
		1769	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1770
		1771	IO::AIO::aio_rmtree $temp;
		1772	}
		1773
		1774	=item $pl->kick
		1775
		1776	Kicks a player out of the game. This destroys the connection.
		1777
		1778	=cut
		1779
		1780	sub kick {
		1781	my ($pl, $kicker) = @_;
		1782
		1783	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1784	$pl->killer ("kicked");
		1785	$pl->ns->destroy;
		1786	}
		1787
		1788	=item cf::player::list_logins
		1789
		1790	Returns am arrayref of all valid playernames in the system, can take a
		1791	while and may block, so not sync_job-capable, ever.
		1792
		1793	=cut
		1794
		1795	sub list_logins {
		1796	my $dirs = aio_readdir $PLAYERDIR
		1797	or return [];
		1798
		1799	my @logins;
		1800
		1801	for my $login (@$dirs) {
		1802	my $path = path $login;
		1803
		1804	# a .pst is a dead give-away for a valid player
		1805	# if no pst file found, open and chekc for blocked users
		1806	if (aio_stat "$path.pst") {
		1807	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1808	aio_read $fh, 0, 512, my $buf, 0 or next;
		1809	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1810	}
		1811
		1812	utf8::decode $login;
		1813	push @logins, $login;
		1814	}
		1815
		1816	\@logins
		1817	}
		1818
		1819	=item $player->maps
		1820
		1821	=item cf::player::maps $login
		1822
		1823	Returns an arrayref of map paths that are private for this
		1824	player. May block.
		1825
		1826	=cut
		1827
		1828	sub maps($) {
		1829	my ($pl) = @_;
		1830
		1831	$pl = ref $pl ? $pl->ob->name : $pl;
		1832
		1833	my $files = aio_readdir playerdir $pl
		1834	or return;
		1835
		1836	my @paths;
		1837
		1838	for (@$files) {
		1839	utf8::decode $_;
		1840	next if /\.(?:pl|pst)$/;
		1841	next unless /^$PATH_SEP/o;
		1842
		1843	push @paths, cf::map::normalise "~$pl/$_";
		1844	}
		1845
		1846	\@paths
		1847	}
		1848
		1849	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1850
		1851	Expand deliantra pod fragments into protocol xml.
		1852
		1853	=item $player->ext_reply ($msgid, @msg)
		1854
		1855	Sends an ext reply to the player.
		1856
		1857	=cut
		1858
		1859	sub ext_reply($$@) {
		1860	my ($self, $id, @msg) = @_;
		1861
		1862	$self->ns->ext_reply ($id, @msg)
		1863	}
		1864
		1865	=item $player->ext_msg ($type, @msg)
		1866
		1867	Sends an ext event to the client.
		1868
		1869	=cut
		1870
		1871	sub ext_msg($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
858		1878
859	=over 4	1879	=over 4
860		1880
861	=item cf::player::exists $login
862
863	Returns true when the given account exists.
864
865	=cut	1881	=cut
866		1882
867	sub cf::player::exists($) {	1883	package cf::region;
868	cf::player::find $_[0]
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
870	}
871		1884
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1885	=item cf::region::find_by_path $path
873		1886
874	Sends an ext reply to the player.	1887	Tries to decuce the likely region for a map knowing only its path.
875		1888
876	=cut	1889	=cut
877		1890
878	sub cf::player::ext_reply($$$%) {	1891	sub find_by_path($) {
		1892	my ($path) = @_;
		1893
		1894	$path =~ s/^~[^\/]*//; # skip ~login
		1895
		1896	my ($match, $specificity);
		1897
		1898	for my $region (list) {
		1899	if ($region->{match} && $path =~ $region->{match}) {
		1900	($match, $specificity) = ($region, $region->specificity)
		1901	if $region->specificity > $specificity;
		1902	}
		1903	}
		1904
		1905	$match
		1906	}
		1907
		1908	=back
		1909
		1910	=head3 cf::map
		1911
		1912	=over 4
		1913
		1914	=cut
		1915
		1916	package cf::map;
		1917
		1918	use Fcntl;
		1919	use Coro::AIO;
		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
		1925	our $MAX_RESET = 3600;
		1926	our $DEFAULT_RESET = 3000;
		1927
		1928	sub generate_random_map {
		1929	my ($self, $rmp) = @_;
		1930
		1931	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1932
		1933	$self->_create_random_map ($rmp);
		1934	}
		1935
		1936	=item cf::map->register ($regex, $prio)
		1937
		1938	Register a handler for the map path matching the given regex at the
		1939	givne priority (higher is better, built-in handlers have priority 0, the
		1940	default).
		1941
		1942	=cut
		1943
		1944	sub register {
		1945	my (undef, $regex, $prio) = @_;
		1946	my $pkg = caller;
		1947
		1948	push @{"$pkg\::ISA"}, __PACKAGE__;
		1949
		1950	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1951	}
		1952
		1953	# also paths starting with '/'
		1954	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1955
		1956	sub thawer_merge {
879	my ($self, $id, %msg) = @_;	1957	my ($self, $merge) = @_;
880		1958
881	$msg{msgid} = $id;	1959	# we have to keep some variables in memory intact
		1960	local $self->{path};
		1961	local $self->{load_path};
882		1962
883	$self->send ("ext " . to_json \%msg);	1963	$self->SUPER::thawer_merge ($merge);
884	}	1964	}
		1965
		1966	sub normalise {
		1967	my ($path, $base) = @_;
		1968
		1969	$path = "$path"; # make sure it's a string
		1970
		1971	$path =~ s/\.map$//;
		1972
		1973	# map plan:
		1974	#
		1975	# /! non-realised random map exit (special hack!)
		1976	# {... are special paths that are not being touched
		1977	# ?xxx/... are special absolute paths
		1978	# ?random/... random maps
		1979	# /... normal maps
		1980	# ~user/... per-player map of a specific user
		1981
		1982	$path =~ s/$PATH_SEP/\//go;
		1983
		1984	# treat it as relative path if it starts with
		1985	# something that looks reasonable
		1986	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1987	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1988
		1989	$base =~ s{[^/]+/?$}{};
		1990	$path = "$base/$path";
		1991	}
		1992
		1993	for ($path) {
		1994	redo if s{/\.?/}{/};
		1995	redo if s{/[^/]+/\.\./}{/};
		1996	}
		1997
		1998	$path
		1999	}
		2000
		2001	sub new_from_path {
		2002	my (undef, $path, $base) = @_;
		2003
		2004	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2005
		2006	$path = normalise $path, $base;
		2007
		2008	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2009	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2010	my $self = bless cf::map::new, $pkg;
		2011	$self->{path} = $path; $self->path ($path);
		2012	$self->init; # pass $1 etc.
		2013	return $self;
		2014	}
		2015	}
		2016
		2017	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2018	()
		2019	}
		2020
		2021	# may re-bless or do other evil things
		2022	sub init {
		2023	my ($self) = @_;
		2024
		2025	$self
		2026	}
		2027
		2028	sub as_string {
		2029	my ($self) = @_;
		2030
		2031	"$self->{path}"
		2032	}
		2033
		2034	# the displayed name, this is a one way mapping
		2035	sub visible_name {
		2036	&as_string
		2037	}
		2038
		2039	# the original (read-only) location
		2040	sub load_path {
		2041	my ($self) = @_;
		2042
		2043	"$MAPDIR/$self->{path}.map"
		2044	}
		2045
		2046	# the temporary/swap location
		2047	sub save_path {
		2048	my ($self) = @_;
		2049
		2050	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2051	"$TMPDIR/$path.map"
		2052	}
		2053
		2054	# the unique path, undef == no special unique path
		2055	sub uniq_path {
		2056	my ($self) = @_;
		2057
		2058	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2059	"$UNIQUEDIR/$path"
		2060	}
		2061
		2062	sub decay_objects {
		2063	my ($self) = @_;
		2064
		2065	return if $self->{deny_reset};
		2066
		2067	$self->do_decay_objects;
		2068	}
		2069
		2070	sub unlink_save {
		2071	my ($self) = @_;
		2072
		2073	utf8::encode (my $save = $self->save_path);
		2074	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2075	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2076	}
		2077
		2078	sub load_header_from($) {
		2079	my ($self, $path) = @_;
		2080
		2081	utf8::encode $path;
		2082	my $f = new_from_file cf::object::thawer $path
		2083	or return;
		2084
		2085	$self->_load_header ($f)
		2086	or return;
		2087
		2088	local $MAP_LOADING{$self->{path}} = $self;
		2089	$f->resolve_delayed_derefs;
		2090
		2091	$self->{load_path} = $path;
		2092
		2093	1
		2094	}
		2095
		2096	# used to laod the header of an original map
		2097	sub load_header_orig {
		2098	my ($self) = @_;
		2099
		2100	$self->load_header_from ($self->load_path)
		2101	}
		2102
		2103	# used to laod the header of an instantiated map
		2104	sub load_header_temp {
		2105	my ($self) = @_;
		2106
		2107	$self->load_header_from ($self->save_path)
		2108	}
		2109
		2110	# called after loading the header from an instantiated map
		2111	sub prepare_temp {
		2112	my ($self) = @_;
		2113
		2114	$self->last_access ((delete $self->{last_access})
		2115	|| $cf::RUNTIME); #d#
		2116	# safety
		2117	$self->{instantiate_time} = $cf::RUNTIME
		2118	if $self->{instantiate_time} > $cf::RUNTIME;
		2119	}
		2120
		2121	# called after loading the header from an original map
		2122	sub prepare_orig {
		2123	my ($self) = @_;
		2124
		2125	$self->{load_original} = 1;
		2126	$self->{instantiate_time} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128	$self->instantiate;
		2129	}
		2130
		2131	sub load_header {
		2132	my ($self) = @_;
		2133
		2134	if ($self->load_header_temp) {
		2135	$self->prepare_temp;
		2136	} else {
		2137	$self->load_header_orig
		2138	or return;
		2139	$self->prepare_orig;
		2140	}
		2141
		2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
		2144
		2145	$self->default_region (cf::region::find_by_path $self->{path})
		2146	unless $self->default_region;
		2147
		2148	1
		2149	}
		2150
		2151	sub find;
		2152	sub find {
		2153	my ($path, $origin) = @_;
		2154
		2155	cf::cede_to_tick;
		2156
		2157	$path = normalise $path, $origin;
		2158
		2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2160	my $guard2 = cf::lock_acquire "map_find:$path";
		2161
		2162	$cf::MAP{$path} || do {
		2163	my $map = new_from_path cf::map $path
		2164	or return;
		2165
		2166	$map->{last_save} = $cf::RUNTIME;
		2167
		2168	$map->load_header
		2169	or return;
		2170
		2171	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2172	# doing this can freeze the server in a sync job, obviously
		2173	#$cf::WAIT_FOR_TICK->wait;
		2174	undef $guard2;
		2175	undef $guard1;
		2176	$map->reset;
		2177	return find $path;
		2178	}
		2179
		2180	$cf::MAP{$path} = $map
		2181	}
		2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
		2186
		2187	sub load {
		2188	my ($self) = @_;
		2189
		2190	local $self->{deny_reset} = 1; # loading can take a long time
		2191
		2192	my $path = $self->{path};
		2193
		2194	{
		2195	my $guard = cf::lock_acquire "map_data:$path";
		2196
		2197	return unless $self->valid;
		2198	return unless $self->state == cf::MAP_SWAPPED;
		2199
		2200	$self->alloc;
		2201
		2202	$self->pre_load;
		2203	cf::cede_to_tick;
		2204
		2205	if (exists $self->{load_path}) {
		2206	my $f = new_from_file cf::object::thawer $self->{load_path};
		2207	$f->skip_block;
		2208	$self->_load_objects ($f)
		2209	or return;
		2210
		2211	$self->post_load_original
		2212	if delete $self->{load_original};
		2213
		2214	if (my $uniq = $self->uniq_path) {
		2215	utf8::encode $uniq;
		2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
		2218	$self->clear_unique_items;
		2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
		2223	}
		2224
		2225	$f->resolve_delayed_derefs;
		2226	} else {
		2227	$self->post_load_original
		2228	if delete $self->{load_original};
		2229	}
		2230
		2231	$self->state (cf::MAP_INACTIVE);
		2232
		2233	cf::cede_to_tick;
		2234	# now do the right thing for maps
		2235	$self->link_multipart_objects;
		2236	$self->difficulty ($self->estimate_difficulty)
		2237	unless $self->difficulty;
		2238	cf::cede_to_tick;
		2239
		2240	unless ($self->{deny_activate}) {
		2241	$self->decay_objects;
		2242	$self->fix_auto_apply;
		2243	$self->update_buttons;
		2244	cf::cede_to_tick;
		2245	#$self->activate; # no longer activate maps automatically
		2246	}
		2247
		2248	$self->{last_save} = $cf::RUNTIME;
		2249	$self->last_access ($cf::RUNTIME);
		2250	}
		2251
		2252	$self->post_load;
		2253
		2254	1
		2255	}
		2256
		2257	# customize the map for a given player, i.e.
		2258	# return the _real_ map. used by e.g. per-player
		2259	# maps to change the path to ~playername/mappath
		2260	sub customise_for {
		2261	my ($self, $ob) = @_;
		2262
		2263	return find "~" . $ob->name . "/" . $self->{path}
		2264	if $self->per_player;
		2265
		2266	# return find "?party/" . $ob->name . "/" . $self->{path}
		2267	# if $self->per_party;
		2268
		2269	$self
		2270	}
		2271
		2272	sub find_sync {
		2273	my ($path, $origin) = @_;
		2274
		2275	# it's a bug to call this from the main context
		2276	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2277	if $Coro::current == $Coro::main;
		2278
		2279	find $path, $origin
		2280	}
		2281
		2282	sub do_load_sync {
		2283	my ($map) = @_;
		2284
		2285	# it's a bug to call this from the main context
		2286	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2287	if $Coro::current == $Coro::main;
		2288
		2289	$map->load;
		2290	}
		2291
		2292	our %MAP_PREFETCH;
		2293	our $MAP_PREFETCHER = undef;
		2294
		2295	sub find_async {
		2296	my ($path, $origin, $load) = @_;
		2297
		2298	$path = normalise $path, $origin;
		2299
		2300	if (my $map = $cf::MAP{$path}) {
		2301	return $map if !$load || $map->linkable;
		2302	}
		2303
		2304	$MAP_PREFETCH{$path} |= $load;
		2305
		2306	$MAP_PREFETCHER ||= cf::async {
		2307	$Coro::current->{desc} = "map prefetcher";
		2308
		2309	while (%MAP_PREFETCH) {
		2310	while (my ($k, $v) = each %MAP_PREFETCH) {
		2311	if (my $map = find $k) {
		2312	$map->load if $v;
		2313	}
		2314
		2315	delete $MAP_PREFETCH{$k};
		2316	}
		2317	}
		2318	undef $MAP_PREFETCHER;
		2319	};
		2320	$MAP_PREFETCHER->prio (6);
		2321
		2322	()
		2323	}
		2324
		2325	# common code, used by both ->save and ->swapout
		2326	sub _save {
		2327	my ($self) = @_;
		2328
		2329	$self->{last_save} = $cf::RUNTIME;
		2330
		2331	return unless $self->dirty;
		2332
		2333	my $save = $self->save_path; utf8::encode $save;
		2334	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2335
		2336	$self->{load_path} = $save;
		2337
		2338	return if $self->{deny_save};
		2339
		2340	local $self->{last_access} = $self->last_access;#d#
		2341
		2342	cf::async {
		2343	$Coro::current->{desc} = "map player save";
		2344	$_->contr->save for $self->players;
		2345	};
		2346
		2347	cf::get_slot 0.02;
		2348
		2349	if ($uniq) {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2351	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2352	} else {
		2353	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2354	}
		2355	}
		2356
		2357	sub save {
		2358	my ($self) = @_;
		2359
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2361
		2362	$self->_save;
		2363	}
		2364
		2365	sub swap_out {
		2366	my ($self) = @_;
		2367
		2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2369
		2370	return if !$self->linkable;
		2371	return if $self->{deny_save};
		2372	return if $self->players;
		2373
		2374	# first deactivate the map and "unlink" it from the core
		2375	$self->deactivate;
		2376	$_->clear_links_to ($self) for values %cf::MAP;
		2377	$self->state (cf::MAP_SWAPPED);
		2378
		2379	# then atomically save
		2380	$self->_save;
		2381
		2382	# then free the map
		2383	$self->clear;
		2384	}
		2385
		2386	sub reset_at {
		2387	my ($self) = @_;
		2388
		2389	# TODO: safety, remove and allow resettable per-player maps
		2390	return 1e99 if $self->{deny_reset};
		2391
		2392	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2393	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2394
		2395	$time + $to
		2396	}
		2397
		2398	sub should_reset {
		2399	my ($self) = @_;
		2400
		2401	$self->reset_at <= $cf::RUNTIME
		2402	}
		2403
		2404	sub reset {
		2405	my ($self) = @_;
		2406
		2407	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2408
		2409	return if $self->players;
		2410
		2411	cf::trace "resetting map ", $self->path, "\n";
		2412
		2413	$self->state (cf::MAP_SWAPPED);
		2414
		2415	# need to save uniques path
		2416	unless ($self->{deny_save}) {
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2420	if $uniq;
		2421	}
		2422
		2423	delete $cf::MAP{$self->path};
		2424
		2425	$self->deactivate;
		2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->clear;
		2428
		2429	$self->unlink_save;
		2430	$self->destroy;
		2431	}
		2432
		2433	my $nuke_counter = "aaaa";
		2434
		2435	sub nuke {
		2436	my ($self) = @_;
		2437
		2438	{
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	delete $cf::MAP{$self->path};
		2442
		2443	$self->unlink_save;
		2444
		2445	bless $self, "cf::map::wrap";
		2446	delete $self->{deny_reset};
		2447	$self->{deny_save} = 1;
		2448	$self->reset_timeout (1);
		2449	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2450
		2451	$cf::MAP{$self->path} = $self;
		2452	}
		2453
		2454	$self->reset; # polite request, might not happen
		2455	}
		2456
		2457	=item $maps = cf::map::tmp_maps
		2458
		2459	Returns an arrayref with all map paths of currently instantiated and saved
		2460	maps. May block.
		2461
		2462	=cut
		2463
		2464	sub tmp_maps() {
		2465	[
		2466	map {
		2467	utf8::decode $_;
		2468	/\.map$/
		2469	? normalise $_
		2470	: ()
		2471	} @{ aio_readdir $TMPDIR or [] }
		2472	]
		2473	}
		2474
		2475	=item $maps = cf::map::random_maps
		2476
		2477	Returns an arrayref with all map paths of currently instantiated and saved
		2478	random maps. May block.
		2479
		2480	=cut
		2481
		2482	sub random_maps() {
		2483	[
		2484	map {
		2485	utf8::decode $_;
		2486	/\.map$/
		2487	? normalise "?random/$_"
		2488	: ()
		2489	} @{ aio_readdir $RANDOMDIR or [] }
		2490	]
		2491	}
		2492
		2493	=item cf::map::unique_maps
		2494
		2495	Returns an arrayref of paths of all shared maps that have
		2496	instantiated unique items. May block.
		2497
		2498	=cut
		2499
		2500	sub unique_maps() {
		2501	[
		2502	map {
		2503	utf8::decode $_;
		2504	s/\.map$//; # TODO future compatibility hack
		2505	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2506	? ()
		2507	: normalise $_
		2508	} @{ aio_readdir $UNIQUEDIR or [] }
		2509	]
		2510	}
		2511
		2512	=item cf::map::static_maps
		2513
		2514	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2515	file in the shared directory excluding F</styles> and F</editor>). May
		2516	block.
		2517
		2518	=cut
		2519
		2520	sub static_maps() {
		2521	my @dirs = "";
		2522	my @maps;
		2523
		2524	while (@dirs) {
		2525	my $dir = shift @dirs;
		2526
		2527	next if $dir eq "/styles" || $dir eq "/editor";
		2528
		2529	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2530	or return;
		2531
		2532	for (@$files) {
		2533	s/\.map$// or next;
		2534	utf8::decode $_;
		2535	push @maps, "$dir/$_";
		2536	}
		2537
		2538	push @dirs, map "$dir/$_", @$dirs;
		2539	}
		2540
		2541	\@maps
		2542	}
		2543
		2544	=back
		2545
		2546	=head3 cf::object
		2547
		2548	=cut
		2549
		2550	package cf::object;
		2551
		2552	=over 4
		2553
		2554	=item $ob->inv_recursive
		2555
		2556	Returns the inventory of the object I<and> their inventories, recursively,
		2557	but I<not> the object itself.
		2558
		2559	=cut
		2560
		2561	sub inv_recursive_;
		2562	sub inv_recursive_ {
		2563	map { $_, inv_recursive_ $_->inv } @_
		2564	}
		2565
		2566	sub inv_recursive {
		2567	inv_recursive_ inv $_[0]
		2568	}
		2569
		2570	=item $ref = $ob->ref
		2571
		2572	Creates and returns a persistent reference to an object that can be stored as a string.
		2573
		2574	=item $ob = cf::object::deref ($refstring)
		2575
		2576	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2577	even if the object actually exists. May block.
		2578
		2579	=cut
		2580
		2581	sub deref {
		2582	my ($ref) = @_;
		2583
		2584	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2585	my ($uuid, $name) = ($1, $2);
		2586	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2587	or return;
		2588	$pl->ob->uuid eq $uuid
		2589	or return;
		2590
		2591	$pl->ob
		2592	} else {
		2593	warn "$ref: cannot resolve object reference\n";
		2594	undef
		2595	}
		2596	}
		2597
		2598	package cf;
885		2599
886	=back	2600	=back
887		2601
888	=head3 cf::object::player	2602	=head3 cf::object::player
889		2603
…		…
894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2608	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
895	can be C<undef>. Does the right thing when the player is currently in a	2609	can be C<undef>. Does the right thing when the player is currently in a
896	dialogue with the given NPC character.	2610	dialogue with the given NPC character.
897		2611
898	=cut	2612	=cut
		2613
		2614	our $SAY_CHANNEL = {
		2615	id => "say",
		2616	title => "Map",
		2617	reply => "say ",
		2618	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2619	};
		2620
		2621	our $CHAT_CHANNEL = {
		2622	id => "chat",
		2623	title => "Chat",
		2624	reply => "chat ",
		2625	tooltip => "Player chat and shouts, global to the server.",
		2626	};
899		2627
900	# rough implementation of a future "reply" method that works	2628	# rough implementation of a future "reply" method that works
901	# with dialog boxes.	2629	# with dialog boxes.
902	#TODO: the first argument must go, split into a $npc->reply_to ( method	2630	#TODO: the first argument must go, split into a $npc->reply_to ( method
903	sub cf::object::player::reply($$$;$) {	2631	sub cf::object::player::reply($$$;$) {
…		…
905		2633
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2635
908	if ($self->{record_replies}) {	2636	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2638
910	} else {	2639	} else {
		2640	my $pl = $self->contr;
		2641
		2642	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2643	my $dialog = $pl->{npc_dialog};
		2644	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2645
		2646	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2647	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2648	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2649	}
913	}	2650	}
		2651	}
		2652
		2653	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2654
		2655	=cut
		2656
		2657	sub cf::object::send_msg {
		2658	my $pl = shift->contr
		2659	or return;
		2660	$pl->send_msg (@_);
914	}	2661	}
915		2662
916	=item $player_object->may ("access")	2663	=item $player_object->may ("access")
917		2664
918	Returns wether the given player is authorized to access resource "access"	2665	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2674	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2675	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2676	: $cf::CFG{"may_$access"})
930	}	2677	}
931		2678
		2679	=item $player_object->enter_link
		2680
		2681	Freezes the player and moves him/her to a special map (C<{link}>).
		2682
		2683	The player should be reasonably safe there for short amounts of time (e.g.
		2684	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2685	though, as the player cannot control the character while it is on the link
		2686	map.
		2687
		2688	Will never block.
		2689
		2690	=item $player_object->leave_link ($map, $x, $y)
		2691
		2692	Moves the player out of the special C<{link}> map onto the specified
		2693	map. If the map is not valid (or omitted), the player will be moved back
		2694	to the location he/she was before the call to C<enter_link>, or, if that
		2695	fails, to the emergency map position.
		2696
		2697	Might block.
		2698
		2699	=cut
		2700
		2701	sub link_map {
		2702	unless ($LINK_MAP) {
		2703	$LINK_MAP = cf::map::find "{link}"
		2704	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2705	$LINK_MAP->load;
		2706	}
		2707
		2708	$LINK_MAP
		2709	}
		2710
		2711	sub cf::object::player::enter_link {
		2712	my ($self) = @_;
		2713
		2714	$self->deactivate_recursive;
		2715
		2716	++$self->{_link_recursion};
		2717
		2718	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2719
		2720	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2721	if $self->map && $self->map->{path} ne "{link}";
		2722
		2723	$self->enter_map ($LINK_MAP || link_map, 3, 3);
		2724	}
		2725
		2726	sub cf::object::player::leave_link {
		2727	my ($self, $map, $x, $y) = @_;
		2728
		2729	return unless $self->contr->active;
		2730
		2731	my $link_pos = delete $self->{_link_pos};
		2732
		2733	unless ($map) {
		2734	# restore original map position
		2735	($map, $x, $y) = @{ $link_pos || [] };
		2736	$map = cf::map::find $map;
		2737
		2738	unless ($map) {
		2739	($map, $x, $y) = @$EMERGENCY_POSITION;
		2740	$map = cf::map::find $map
		2741	or die "FATAL: cannot load emergency map\n";
		2742	}
		2743	}
		2744
		2745	($x, $y) = (-1, -1)
		2746	unless (defined $x) && (defined $y);
		2747
		2748	# use -1 or undef as default coordinates, not 0, 0
		2749	($x, $y) = ($map->enter_x, $map->enter_y)
		2750	if $x <= 0 && $y <= 0;
		2751
		2752	$map->load;
		2753
		2754	return unless $self->contr->active;
		2755
		2756	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2757	if ($self->enter_map ($map, $x, $y)) {
		2758	# entering was successful
		2759	delete $self->{_link_recursion};
		2760	# only activate afterwards, to support waiting in hooks
		2761	$self->activate_recursive;
		2762	}
		2763
		2764	}
		2765
		2766	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
		2767
		2768	Moves the player to the given map-path and coordinates by first freezing
		2769	her, loading and preparing them map, calling the provided $check callback
		2770	that has to return the map if sucecssful, and then unfreezes the player on
		2771	the new (success) or old (failed) map position. In either case, $done will
		2772	be called at the end of this process.
		2773
		2774	Note that $check will be called with a potentially non-loaded map, so if
		2775	it needs a loaded map it has to call C<< ->load >>.
		2776
		2777	=cut
		2778
		2779	our $GOTOGEN;
		2780
		2781	sub cf::object::player::goto {
		2782	my ($self, $path, $x, $y, $check, $done) = @_;
		2783
		2784	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2785	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2786	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2787	($path, $x, $y) = @$EMERGENCY_POSITION;
		2788	}
		2789
		2790	# do generation counting so two concurrent goto's will be executed in-order
		2791	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2792
		2793	$self->enter_link;
		2794
		2795	(async {
		2796	$Coro::current->{desc} = "player::goto $path $x $y";
		2797
		2798	# *tag paths override both path and x|y
		2799	if ($path =~ /^\*(.*)$/) {
		2800	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2801	my $ob = $obs[rand @obs];
		2802
		2803	# see if we actually can go there
		2804	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2805	$ob = $obs[rand @obs];
		2806	} else {
		2807	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2808	}
		2809	# else put us there anyways for now #d#
		2810
		2811	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2812	} else {
		2813	($path, $x, $y) = (undef, undef, undef);
		2814	}
		2815	}
		2816
		2817	my $map = eval {
		2818	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2819
		2820	if ($map) {
		2821	$map = $map->customise_for ($self);
		2822	$map = $check->($map, $x, $y, $self) if $check && $map;
		2823	} else {
		2824	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2825	}
		2826
		2827	$map
		2828	};
		2829
		2830	if ($@) {
		2831	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2832	LOG llevError | logBacktrace, Carp::longmess $@;
		2833	}
		2834
		2835	if ($gen == $self->{_goto_generation}) {
		2836	delete $self->{_goto_generation};
		2837	$self->leave_link ($map, $x, $y);
		2838	}
		2839
		2840	$done->($self) if $done;
		2841	})->prio (1);
		2842	}
		2843
		2844	=item $player_object->enter_exit ($exit_object)
		2845
		2846	=cut
		2847
		2848	sub parse_random_map_params {
		2849	my ($spec) = @_;
		2850
		2851	my $rmp = { # defaults
		2852	xsize => (cf::rndm 15, 40),
		2853	ysize => (cf::rndm 15, 40),
		2854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2855	#layout => string,
		2856	};
		2857
		2858	for (split /\n/, $spec) {
		2859	my ($k, $v) = split /\s+/, $_, 2;
		2860
		2861	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2862	}
		2863
		2864	$rmp
		2865	}
		2866
		2867	sub prepare_random_map {
		2868	my ($exit) = @_;
		2869
		2870	# all this does is basically replace the /! path by
		2871	# a new random map path (?random/...) with a seed
		2872	# that depends on the exit object
		2873
		2874	my $rmp = parse_random_map_params $exit->msg;
		2875
		2876	if ($exit->map) {
		2877	$rmp->{region} = $exit->region->name;
		2878	$rmp->{origin_map} = $exit->map->path;
		2879	$rmp->{origin_x} = $exit->x;
		2880	$rmp->{origin_y} = $exit->y;
		2881
		2882	$exit->map->touch;
		2883	}
		2884
		2885	$rmp->{random_seed} ||= $exit->random_seed;
		2886
		2887	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2888	my $md5 = Digest::MD5::md5_hex $data;
		2889	my $meta = "$RANDOMDIR/$md5.meta";
		2890
		2891	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2892	aio_write $fh, 0, (length $data), $data, 0;
		2893	undef $fh;
		2894	aio_rename "$meta~", $meta;
		2895
		2896	my $slaying = "?random/$md5";
		2897
		2898	if ($exit->valid) {
		2899	$exit->slaying ("?random/$md5");
		2900	$exit->msg (undef);
		2901	}
		2902	}
		2903	}
		2904
		2905	sub cf::object::player::enter_exit {
		2906	my ($self, $exit) = @_;
		2907
		2908	return unless $self->type == cf::PLAYER;
		2909
		2910	$self->enter_link;
		2911
		2912	(async {
		2913	$Coro::current->{desc} = "enter_exit";
		2914
		2915	unless (eval {
		2916	$self->deactivate_recursive; # just to be sure
		2917
		2918	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2919	my $x = $exit->stats->hp;
		2920	my $y = $exit->stats->sp;
		2921
		2922	# special map handling
		2923	my $slaying = $exit->slaying;
		2924
		2925	# special map handling
		2926	if ($slaying eq "/!") {
		2927	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2928
		2929	prepare_random_map $exit
		2930	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2931
		2932	$map = $exit->slaying;
		2933
		2934	} elsif ($slaying eq '!up') {
		2935	$map = $exit->map->tile_path (cf::TILE_UP);
		2936	$x = $exit->x;
		2937	$y = $exit->y;
		2938
		2939	} elsif ($slaying eq '!down') {
		2940	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2941	$x = $exit->x;
		2942	$y = $exit->y;
		2943	}
		2944
		2945	$self->goto ($map, $x, $y);
		2946
		2947	# if exit is damned, update players death & WoR home-position
		2948	$self->contr->savebed ($map, $x, $y)
		2949	if $exit->flag (cf::FLAG_DAMNED);
		2950
		2951	1
		2952	}) {
		2953	$self->message ("Something went wrong deep within the deliantra server. "
		2954	. "I'll try to bring you back to the map you were before. "
		2955	. "Please report this to the dungeon master!",
		2956	cf::NDI_UNIQUE | cf::NDI_RED);
		2957
		2958	error "ERROR in enter_exit: $@";
		2959	$self->leave_link;
		2960	}
		2961	})->prio (1);
		2962	}
		2963
932	=head3 cf::client	2964	=head3 cf::client
933		2965
934	=over 4	2966	=over 4
935		2967
936	=item $client->send_drawinfo ($text, $flags)	2968	=item $client->send_drawinfo ($text, $flags)
…		…
942		2974
943	sub cf::client::send_drawinfo {	2975	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2976	my ($self, $text, $flags) = @_;
945		2977
946	utf8::encode $text;	2978	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2979	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2980	}
949		2981
		2982	=item $client->send_big_packet ($pkt)
		2983
		2984	Like C<send_packet>, but tries to compress large packets, and fragments
		2985	them as required.
		2986
		2987	=cut
		2988
		2989	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2990
		2991	sub cf::client::send_big_packet {
		2992	my ($self, $pkt) = @_;
		2993
		2994	# try lzf for large packets
		2995	$pkt = "lzf " . Compress::LZF::compress $pkt
		2996	if 1024 <= length $pkt and $self->{can_lzf};
		2997
		2998	# split very large packets
		2999	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3000	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3001	$pkt = "frag";
		3002	}
		3003
		3004	$self->send_packet ($pkt);
		3005	}
		3006
		3007	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3008
		3009	Send a drawinfo or msg packet to the client, formatting the msg for the
		3010	client if neccessary. C<$type> should be a string identifying the type of
		3011	the message, with C<log> being the default. If C<$color> is negative, suppress
		3012	the message unless the client supports the msg packet.
		3013
		3014	=cut
		3015
		3016	# non-persistent channels (usually the info channel)
		3017	our %CHANNEL = (
		3018	"c/motd" => {
		3019	id => "infobox",
		3020	title => "MOTD",
		3021	reply => undef,
		3022	tooltip => "The message of the day",
		3023	},
		3024	"c/identify" => {
		3025	id => "infobox",
		3026	title => "Identify",
		3027	reply => undef,
		3028	tooltip => "Items recently identified",
		3029	},
		3030	"c/examine" => {
		3031	id => "infobox",
		3032	title => "Examine",
		3033	reply => undef,
		3034	tooltip => "Signs and other items you examined",
		3035	},
		3036	"c/shopinfo" => {
		3037	id => "infobox",
		3038	title => "Shop Info",
		3039	reply => undef,
		3040	tooltip => "What your bargaining skill tells you about the shop",
		3041	},
		3042	"c/book" => {
		3043	id => "infobox",
		3044	title => "Book",
		3045	reply => undef,
		3046	tooltip => "The contents of a note or book",
		3047	},
		3048	"c/lookat" => {
		3049	id => "infobox",
		3050	title => "Look",
		3051	reply => undef,
		3052	tooltip => "What you saw there",
		3053	},
		3054	"c/who" => {
		3055	id => "infobox",
		3056	title => "Players",
		3057	reply => undef,
		3058	tooltip => "Shows players who are currently online",
		3059	},
		3060	"c/body" => {
		3061	id => "infobox",
		3062	title => "Body Parts",
		3063	reply => undef,
		3064	tooltip => "Shows which body parts you posess and are available",
		3065	},
		3066	"c/statistics" => {
		3067	id => "infobox",
		3068	title => "Statistics",
		3069	reply => undef,
		3070	tooltip => "Shows your primary statistics",
		3071	},
		3072	"c/skills" => {
		3073	id => "infobox",
		3074	title => "Skills",
		3075	reply => undef,
		3076	tooltip => "Shows your experience per skill and item power",
		3077	},
		3078	"c/shopitems" => {
		3079	id => "infobox",
		3080	title => "Shop Items",
		3081	reply => undef,
		3082	tooltip => "Shows the items currently for sale in this shop",
		3083	},
		3084	"c/resistances" => {
		3085	id => "infobox",
		3086	title => "Resistances",
		3087	reply => undef,
		3088	tooltip => "Shows your resistances",
		3089	},
		3090	"c/pets" => {
		3091	id => "infobox",
		3092	title => "Pets",
		3093	reply => undef,
		3094	tooltip => "Shows information abotu your pets/a specific pet",
		3095	},
		3096	"c/perceiveself" => {
		3097	id => "infobox",
		3098	title => "Perceive Self",
		3099	reply => undef,
		3100	tooltip => "You gained detailed knowledge about yourself",
		3101	},
		3102	"c/uptime" => {
		3103	id => "infobox",
		3104	title => "Uptime",
		3105	reply => undef,
		3106	tooltip => "How long the server has been running since last restart",
		3107	},
		3108	"c/mapinfo" => {
		3109	id => "infobox",
		3110	title => "Map Info",
		3111	reply => undef,
		3112	tooltip => "Information related to the maps",
		3113	},
		3114	"c/party" => {
		3115	id => "party",
		3116	title => "Party",
		3117	reply => "gsay ",
		3118	tooltip => "Messages and chat related to your party",
		3119	},
		3120	"c/death" => {
		3121	id => "death",
		3122	title => "Death",
		3123	reply => undef,
		3124	tooltip => "Reason for and more info about your most recent death",
		3125	},
		3126	"c/say" => $SAY_CHANNEL,
		3127	"c/chat" => $CHAT_CHANNEL,
		3128	);
		3129
		3130	sub cf::client::send_msg {
		3131	my ($self, $channel, $msg, $color, @extra) = @_;
		3132
		3133	$msg = $self->pl->expand_cfpod ($msg)
		3134	unless $color & cf::NDI_VERBATIM;
		3135
		3136	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3137
		3138	# check predefined channels, for the benefit of C
		3139	if ($CHANNEL{$channel}) {
		3140	$channel = $CHANNEL{$channel};
		3141
		3142	$self->ext_msg (channel_info => $channel);
		3143	$channel = $channel->{id};
		3144
		3145	} elsif (ref $channel) {
		3146	# send meta info to client, if not yet sent
		3147	unless (exists $self->{channel}{$channel->{id}}) {
		3148	$self->{channel}{$channel->{id}} = $channel;
		3149	$self->ext_msg (channel_info => $channel);
		3150	}
		3151
		3152	$channel = $channel->{id};
		3153	}
		3154
		3155	return unless @extra || length $msg;
		3156
		3157	# default colour, mask it out
		3158	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3159	if $color & cf::NDI_DEF;
		3160
		3161	my $pkt = "msg "
		3162	. $self->{json_coder}->encode (
		3163	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3164	);
		3165
		3166	$self->send_big_packet ($pkt);
		3167	}
		3168
		3169	=item $client->ext_msg ($type, @msg)
		3170
		3171	Sends an ext event to the client.
		3172
		3173	=cut
		3174
		3175	sub cf::client::ext_msg($$@) {
		3176	my ($self, $type, @msg) = @_;
		3177
		3178	if ($self->extcmd == 2) {
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3180	} elsif ($self->extcmd == 1) { # TODO: remove
		3181	push @msg, msgtype => "event_$type";
		3182	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3183	}
		3184	}
		3185
		3186	=item $client->ext_reply ($msgid, @msg)
		3187
		3188	Sends an ext reply to the client.
		3189
		3190	=cut
		3191
		3192	sub cf::client::ext_reply($$@) {
		3193	my ($self, $id, @msg) = @_;
		3194
		3195	if ($self->extcmd == 2) {
		3196	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3197	} elsif ($self->extcmd == 1) {
		3198	#TODO: version 1, remove
		3199	unshift @msg, msgtype => "reply", msgid => $id;
		3200	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3201	}
		3202	}
950		3203
951	=item $success = $client->query ($flags, "text", \&cb)	3204	=item $success = $client->query ($flags, "text", \&cb)
952		3205
953	Queues a query to the client, calling the given callback with	3206	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3207	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3208	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		3209
957	Queries can fail, so check the return code. Or don't, as queries will become	3210	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	3211	become reliable at some point in the future.
959		3212
960	=cut	3213	=cut
961		3214
962	sub cf::client::query {	3215	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	3216	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	3224	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3225	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		3226
974	$self->send_packet ($self->{query_queue}[0][0])	3227	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	3228	if @{ $self->{query_queue} } == 1;
		3229
		3230	1
976	}	3231	}
977		3232
978	cf::client->attach (	3233	cf::client->attach (
		3234	on_connect => sub {
		3235	my ($ns) = @_;
		3236
		3237	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3238	},
979	on_reply => sub {	3239	on_reply => sub {
980	my ($ns, $msg) = @_;	3240	my ($ns, $msg) = @_;
981		3241
982	# this weird shuffling is so that direct followup queries	3242	# this weird shuffling is so that direct followup queries
983	# get handled first	3243	# get handled first
984	my $queue = delete $ns->{query_queue};	3244	my $queue = delete $ns->{query_queue}
		3245	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		3246
986	(shift @$queue)->[1]->($msg);	3247	(shift @$queue)->[1]->($msg);
		3248	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		3249
988	push @{ $ns->{query_queue} }, @$queue;	3250	push @{ $ns->{query_queue} }, @$queue;
989		3251
990	if (@{ $ns->{query_queue} } == @$queue) {	3252	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	3253	if (@$queue) {
…		…
993	} else {	3255	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3256	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	3257	}
996	}	3258	}
997	},	3259	},
		3260	on_exticmd => sub {
		3261	my ($ns, $buf) = @_;
		3262
		3263	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3264
		3265	if (ref $msg) {
		3266	my ($type, $reply, @payload) =
		3267	"ARRAY" eq ref $msg
		3268	? @$msg
		3269	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3270
		3271	my @reply;
		3272
		3273	if (my $cb = $EXTICMD{$type}) {
		3274	@reply = $cb->($ns, @payload);
		3275	}
		3276
		3277	$ns->ext_reply ($reply, @reply)
		3278	if $reply;
		3279
		3280	} else {
		3281	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3282	}
		3283
		3284	cf::override;
		3285	},
998	);	3286	);
999		3287
1000	=item $client->coro (\&cb)	3288	=item $client->async (\&cb)
1001		3289
1002	Create a new coroutine, running the specified callback. The coroutine will	3290	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	3291	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	3292	or loss of connection).
1005		3293
1006	=cut	3294	=cut
1007		3295
1008	sub cf::client::coro {	3296	sub cf::client::async {
1009	my ($self, $cb) = @_;	3297	my ($self, $cb) = @_;
1010		3298
1011	my $coro; $coro = async {	3299	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		3300
1018	$coro->on_destroy (sub {	3301	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	3302	delete $self->{_coro}{$coro+0};
1020	});	3303	});
1021		3304
…		…
1023		3306
1024	$coro	3307	$coro
1025	}	3308	}
1026		3309
1027	cf::client->attach (	3310	cf::client->attach (
1028	on_destroy => sub {	3311	on_client_destroy => sub {
1029	my ($ns) = @_;	3312	my ($ns) = @_;
1030		3313
1031	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3314	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1032	},	3315	},
1033	);	3316	);
…		…
1048	our $safe = new Safe "safe";	3331	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	3332	our $safe_hole = new Safe::Hole;
1050		3333
1051	$SIG{FPE} = 'IGNORE';	3334	$SIG{FPE} = 'IGNORE';
1052		3335
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3336	$safe->permit_only (Opcode::opset qw(
		3337	:base_core :base_mem :base_orig :base_math :base_loop
		3338	grepstart grepwhile mapstart mapwhile
		3339	sort time
		3340	));
1054		3341
1055	# here we export the classes and methods available to script code	3342	# here we export the classes and methods available to script code
1056		3343
1057	=pod	3344	=pod
1058		3345
1059	The following fucntions and emthods are available within a safe environment:	3346	The following functions and methods are available within a safe environment:
1060		3347
1061	cf::object contr pay_amount pay_player map	3348	cf::object
		3349	contr pay_amount pay_player map x y force_find force_add destroy
		3350	insert remove name archname title slaying race decrease split
		3351	value
		3352
1062	cf::object::player player	3353	cf::object::player
1063	cf::player peaceful	3354	player
1064	cf::map trigger	3355
		3356	cf::player
		3357	peaceful
		3358
		3359	cf::map
		3360	trigger
1065		3361
1066	=cut	3362	=cut
1067		3363
1068	for (	3364	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	3365	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3366	insert remove inv nrof name archname title slaying race
		3367	decrease split destroy change_exp value msg lore send_msg)],
1070	["cf::object::player" => qw(player)],	3368	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	3369	["cf::player" => qw(peaceful send_msg)],
1072	["cf::map" => qw(trigger)],	3370	["cf::map" => qw(trigger)],
1073	) {	3371	) {
1074	no strict 'refs';
1075	my ($pkg, @funs) = @$_;	3372	my ($pkg, @funs) = @$_;
1076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3373	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1077	for @funs;	3374	for @funs;
1078	}	3375	}
1079		3376
…		…
1094		3391
1095	my $qcode = $code;	3392	my $qcode = $code;
1096	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3393	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1097	$qcode =~ s/\n/\\n/g;	3394	$qcode =~ s/\n/\\n/g;
1098		3395
		3396	%vars = (_dummy => 0) unless %vars;
		3397
		3398	my @res;
1099	local $_;	3399	local $_;
1100	local @safe::cf::_safe_eval_args = values %vars;
1101		3400
1102	my $eval =	3401	my $eval =
1103	"do {\n"	3402	"do {\n"
1104	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3403	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1105	. "#line 0 \"{$qcode}\"\n"	3404	. "#line 0 \"{$qcode}\"\n"
1106	. $code	3405	. $code
1107	. "\n}"	3406	. "\n}"
1108	;	3407	;
1109		3408
		3409	if ($CFG{safe_eval}) {
1110	sub_generation_inc;	3410	sub_generation_inc;
		3411	local @safe::cf::_safe_eval_args = values %vars;
1111	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3412	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1112	sub_generation_inc;	3413	sub_generation_inc;
		3414	} else {
		3415	local @cf::_safe_eval_args = values %vars;
		3416	@res = wantarray ? eval eval : scalar eval $eval;
		3417	}
1113		3418
1114	if ($@) {	3419	if ($@) {
1115	warn "$@";	3420	warn "$@",
1116	warn "while executing safe code '$code'\n";	3421	"while executing safe code '$code'\n",
1117	warn "with arguments " . (join " ", %vars) . "\n";	3422	"with arguments " . (join " ", %vars) . "\n";
1118	}	3423	}
1119		3424
1120	wantarray ? @res : $res[0]	3425	wantarray ? @res : $res[0]
1121	}	3426	}
1122		3427
…		…
1136	=cut	3441	=cut
1137		3442
1138	sub register_script_function {	3443	sub register_script_function {
1139	my ($fun, $cb) = @_;	3444	my ($fun, $cb) = @_;
1140		3445
1141	no strict 'refs';	3446	$fun = "safe::$fun" if $CFG{safe_eval};
1142	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3447	*$fun = $safe_hole->wrap ($cb);
1143	}	3448	}
1144		3449
1145	=back	3450	=back
1146		3451
1147	=cut	3452	=cut
1148		3453
1149	#############################################################################	3454	#############################################################################
		3455	# the server's init and main functions
1150		3456
1151	=head2 EXTENSION DATABASE SUPPORT	3457	sub load_facedata($) {
		3458	my ($path) = @_;
1152		3459
1153	Crossfire maintains a very simple database for extension use. It can	3460	# HACK to clear player env face cache, we need some signal framework
1154	currently store anything that can be serialised using Storable, which	3461	# for this (global event?)
1155	excludes objects.	3462	%ext::player_env::MUSIC_FACE_CACHE = ();
1156		3463
1157	The parameter C<$family> should best start with the name of the extension	3464	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1158	using it, it should be unique.
1159		3465
1160	=over 4	3466	trace "loading facedata from $path\n";
1161		3467
1162	=item $hashref = cf::db_get $family	3468	my $facedata = decode_storable load_file $path;
1163		3469
1164	Return a hashref for use by the extension C<$family>, which can be	3470	$facedata->{version} == 2
1165	modified. After modifications, you have to call C<cf::db_dirty> or	3471	or cf::cleanup "$path: version mismatch, cannot proceed.";
1166	C<cf::db_sync>.
1167		3472
1168	=item $value = cf::db_get $family => $key	3473	# patch in the exptable
		3474	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3475	$facedata->{resource}{"res/exp_table"} = {
		3476	type => FT_RSRC,
		3477	data => $exp_table,
		3478	hash => (Digest::MD5::md5 $exp_table),
		3479	};
		3480	cf::cede_to_tick;
1169		3481
1170	Returns a single value from the database	3482	{
		3483	my $faces = $facedata->{faceinfo};
1171		3484
1172	=item cf::db_put $family => $hashref	3485	while (my ($face, $info) = each %$faces) {
		3486	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1173		3487
1174	Stores the given family hashref into the database. Updates are delayed, if	3488	cf::face::set_visibility $idx, $info->{visibility};
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3489	cf::face::set_magicmap $idx, $info->{magicmap};
		3490	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3491	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3492	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1176		3493
1177	=item cf::db_put $family => $key => $value	3494	cf::cede_to_tick;
		3495	}
1178		3496
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	3497	while (my ($face, $info) = each %$faces) {
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.	3498	next unless $info->{smooth};
1181		3499
1182	=item cf::db_dirty	3500	my $idx = cf::face::find $face
		3501	or next;
1183		3502
1184	Marks the database as dirty, to be updated at a later time.	3503	if (my $smooth = cf::face::find $info->{smooth}) {
		3504	cf::face::set_smooth $idx, $smooth;
		3505	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3506	} else {
		3507	error "smooth face '$info->{smooth}' not found for face '$face'";
		3508	}
1185		3509
1186	=item cf::db_sync	3510	cf::cede_to_tick;
		3511	}
		3512	}
1187		3513
1188	Immediately write the database to disk I<if it is dirty>.	3514	{
		3515	my $anims = $facedata->{animinfo};
1189		3516
1190	=cut	3517	while (my ($anim, $info) = each %$anims) {
		3518	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3519	cf::cede_to_tick;
		3520	}
1191		3521
1192	our $DB;	3522	cf::anim::invalidate_all; # d'oh
		3523	}
		3524
		3525	{
		3526	my $res = $facedata->{resource};
		3527
		3528	while (my ($name, $info) = each %$res) {
		3529	if (defined $info->{type}) {
		3530	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3531
		3532	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3533	cf::face::set_type $idx, $info->{type};
		3534	} else {
		3535	$RESOURCE{$name} = $info; # unused
		3536	}
		3537
		3538	cf::cede_to_tick;
		3539	}
		3540	}
		3541
		3542	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3543
		3544	1
		3545	}
		3546
		3547	register_exticmd fx_want => sub {
		3548	my ($ns, $want) = @_;
		3549
		3550	while (my ($k, $v) = each %$want) {
		3551	$ns->fx_want ($k, $v);
		3552	}
		3553	};
		3554
		3555	sub load_resource_file($) {
		3556	my $guard = lock_acquire "load_resource_file";
		3557
		3558	my $status = load_resource_file_ $_[0];
		3559	get_slot 0.1, 100;
		3560	cf::arch::commit_load;
		3561
		3562	$status
		3563	}
		3564
		3565	sub reload_regions {
		3566	# HACK to clear player env face cache, we need some signal framework
		3567	# for this (global event?)
		3568	%ext::player_env::MUSIC_FACE_CACHE = ();
		3569
		3570	load_resource_file "$MAPDIR/regions"
		3571	or die "unable to load regions file\n";
		3572
		3573	for (cf::region::list) {
		3574	$_->{match} = qr/$_->{match}/
		3575	if exists $_->{match};
		3576	}
		3577	}
		3578
		3579	sub reload_facedata {
		3580	load_facedata "$DATADIR/facedata"
		3581	or die "unable to load facedata\n";
		3582	}
		3583
		3584	sub reload_archetypes {
		3585	load_resource_file "$DATADIR/archetypes"
		3586	or die "unable to load archetypes\n";
		3587	}
		3588
		3589	sub reload_treasures {
		3590	load_resource_file "$DATADIR/treasures"
		3591	or die "unable to load treasurelists\n";
		3592	}
		3593
		3594	sub reload_sound {
		3595	trace "loading sound config from $DATADIR/sound\n";
		3596
		3597	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3598
		3599	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3600	my $sound = $soundconf->{compat}[$_]
		3601	or next;
		3602
		3603	my $face = cf::face::find "sound/$sound->[1]";
		3604	cf::sound::set $sound->[0] => $face;
		3605	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3606	}
		3607
		3608	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3609	my $face = cf::face::find "sound/$v";
		3610	cf::sound::set $k => $face;
		3611	}
		3612	}
		3613
		3614	sub reload_resources {
		3615	trace "reloading resource files...\n";
		3616
		3617	reload_exp_table;
		3618	reload_materials;
		3619	reload_facedata;
		3620	reload_sound;
		3621	reload_archetypes;
		3622	reload_regions;
		3623	reload_treasures;
		3624
		3625	trace "finished reloading resource files\n";
		3626	}
		3627
		3628	sub reload_config {
		3629	trace "reloading config file...\n";
		3630
		3631	my $config = load_file "$CONFDIR/config";
		3632	utf8::decode $config;
		3633	*CFG = decode_yaml $config;
		3634
		3635	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3636
		3637	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3638	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3639
		3640	if (exists $CFG{mlockall}) {
		3641	eval {
		3642	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3643	and die "WARNING: m(un)lockall failed: $!\n";
		3644	};
		3645	warn $@ if $@;
		3646	}
		3647	}
		3648
		3649	sub pidfile() {
		3650	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3651	or die "$PIDFILE: $!";
		3652	flock $fh, &Fcntl::LOCK_EX
		3653	or die "$PIDFILE: flock: $!";
		3654	$fh
		3655	}
		3656
		3657	# make sure only one server instance is running at any one time
		3658	sub atomic {
		3659	my $fh = pidfile;
		3660
		3661	my $pid = <$fh>;
		3662	kill 9, $pid if $pid > 0;
		3663
		3664	seek $fh, 0, 0;
		3665	print $fh $$;
		3666	}
		3667
		3668	sub main_loop {
		3669	trace "EV::loop starting\n";
		3670	if (1) {
		3671	EV::loop;
		3672	}
		3673	trace "EV::loop returned\n";
		3674	goto &main_loop unless $REALLY_UNLOOP;
		3675	}
		3676
		3677	sub main {
		3678	cf::init_globals; # initialise logging
		3679
		3680	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3681	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3682	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3683	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3684
		3685	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3686
		3687	# we must not ever block the main coroutine
		3688	local $Coro::idle = sub {
		3689	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3690	(async {
		3691	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3692	EV::loop EV::LOOP_ONESHOT;
		3693	})->prio (Coro::PRIO_MAX);
		3694	};
		3695
		3696	evthread_start IO::AIO::poll_fileno;
		3697
		3698	cf::sync_job {
		3699	cf::incloader::init ();
		3700
		3701	cf::init_anim;
		3702	cf::init_attackmess;
		3703	cf::init_dynamic;
		3704
		3705	cf::load_settings;
		3706
		3707	reload_resources;
		3708	reload_config;
		3709	db_init;
		3710
		3711	cf::init_uuid;
		3712	cf::init_signals;
		3713	cf::init_skills;
		3714
		3715	cf::init_beforeplay;
		3716
		3717	atomic;
		3718
		3719	load_extensions;
		3720
		3721	utime time, time, $RUNTIMEFILE;
		3722
		3723	# no (long-running) fork's whatsoever before this point(!)
		3724	use POSIX ();
		3725	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3726
		3727	cf::_post_init 0;
		3728	};
		3729
		3730	cf::object::thawer::errors_are_fatal 0;
		3731	info "parse errors in files are no longer fatal from this point on.\n";
		3732
		3733	AE::postpone {
		3734	undef &main; # free gobs of memory :)
		3735	};
		3736
		3737	goto &main_loop;
		3738	}
		3739
		3740	#############################################################################
		3741	# initialisation and cleanup
		3742
		3743	# install some emergency cleanup handlers
		3744	BEGIN {
		3745	our %SIGWATCHER = ();
		3746	for my $signal (qw(INT HUP TERM)) {
		3747	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3748	cf::cleanup "SIG$signal";
		3749	};
		3750	}
		3751	}
		3752
		3753	sub write_runtime_sync {
		3754	my $t0 = AE::time;
		3755
		3756	# first touch the runtime file to show we are still running:
		3757	# the fsync below can take a very very long time.
		3758
		3759	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3760
		3761	my $guard = cf::lock_acquire "write_runtime";
		3762
		3763	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3764	or return;
		3765
		3766	my $value = $cf::RUNTIME + 90 + 10;
		3767	# 10 is the runtime save interval, for a monotonic clock
		3768	# 60 allows for the watchdog to kill the server.
		3769
		3770	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3771	and return;
		3772
		3773	# always fsync - this file is important
		3774	aio_fsync $fh
		3775	and return;
		3776
		3777	# touch it again to show we are up-to-date
		3778	aio_utime $fh, undef, undef;
		3779
		3780	close $fh
		3781	or return;
		3782
		3783	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3784	and return;
		3785
		3786	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3787
		3788	1
		3789	}
		3790
		3791	our $uuid_lock;
		3792	our $uuid_skip;
		3793
		3794	sub write_uuid_sync($) {
		3795	$uuid_skip ||= $_[0];
		3796
		3797	return if $uuid_lock;
		3798	local $uuid_lock = 1;
		3799
		3800	my $uuid = "$LOCALDIR/uuid";
		3801
		3802	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3803	or return;
		3804
		3805	my $value = uuid_seq uuid_cur;
		3806
		3807	unless ($value) {
		3808	info "cowardly refusing to write zero uuid value!\n";
		3809	return;
		3810	}
		3811
		3812	my $value = uuid_str $value + $uuid_skip;
		3813	$uuid_skip = 0;
		3814
		3815	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3816	and return;
		3817
		3818	# always fsync - this file is important
		3819	aio_fsync $fh
		3820	and return;
		3821
		3822	close $fh
		3823	or return;
		3824
		3825	aio_rename "$uuid~", $uuid
		3826	and return;
		3827
		3828	trace "uuid file written ($value).\n";
		3829
		3830	1
		3831
		3832	}
		3833
		3834	sub write_uuid($$) {
		3835	my ($skip, $sync) = @_;
		3836
		3837	$sync ? write_uuid_sync $skip
		3838	: async { write_uuid_sync $skip };
		3839	}
		3840
		3841	sub emergency_save() {
		3842	my $freeze_guard = cf::freeze_mainloop;
		3843
		3844	info "emergency_perl_save: enter\n";
		3845
		3846	# this is a trade-off: we want to be very quick here, so
		3847	# save all maps without fsync, and later call a global sync
		3848	# (which in turn might be very very slow)
		3849	local $USE_FSYNC = 0;
		3850
		3851	cf::sync_job {
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
		3854	# use a peculiar iteration method to avoid tripping on perl
		3855	# refcount bugs in for. also avoids problems with players
		3856	# and maps saved/destroyed asynchronously.
		3857	info "emergency_perl_save: begin player save\n";
		3858	for my $login (keys %cf::PLAYER) {
		3859	my $pl = $cf::PLAYER{$login} or next;
		3860	$pl->valid or next;
		3861	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3862	$pl->save;
		3863	}
		3864	info "emergency_perl_save: end player save\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin map save\n";
		3869	for my $path (keys %cf::MAP) {
		3870	my $map = $cf::MAP{$path} or next;
		3871	$map->valid or next;
		3872	$map->save;
		3873	}
		3874	info "emergency_perl_save: end map save\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	info "emergency_perl_save: begin database checkpoint\n";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880	info "emergency_perl_save: end database checkpoint\n";
		3881
		3882	info "emergency_perl_save: begin write uuid\n";
		3883	write_uuid_sync 1;
		3884	info "emergency_perl_save: end write uuid\n";
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: syncing database to disk";
		3889	BDB::db_env_txn_checkpoint $DB_ENV;
		3890
		3891	info "emergency_perl_save: starting sync\n";
		3892	IO::AIO::aio_sync sub {
		3893	info "emergency_perl_save: finished sync\n";
		3894	};
		3895
		3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	trace "emergency_perl_save: flushing outstanding aio requests";
		3899	while (IO::AIO::nreqs || BDB::nreqs) {
		3900	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3901	}
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
		3904	};
		3905
		3906	info "emergency_perl_save: leave\n";
		3907	}
		3908
		3909	sub post_cleanup {
		3910	my ($make_core) = @_;
		3911
		3912	IO::AIO::flush;
		3913
		3914	error Carp::longmess "post_cleanup backtrace"
		3915	if $make_core;
		3916
		3917	my $fh = pidfile;
		3918	unlink $PIDFILE if <$fh> == $$;
		3919	}
		3920
		3921	# a safer delete_package, copied from Symbol
		3922	sub clear_package($) {
		3923	my $pkg = shift;
		3924
		3925	# expand to full symbol table name if needed
		3926	unless ($pkg =~ /^main::.*::$/) {
		3927	$pkg = "main$pkg" if $pkg =~ /^::/;
		3928	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3929	$pkg .= '::' unless $pkg =~ /::$/;
		3930	}
		3931
		3932	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3933	my $stem_symtab = *{$stem}{HASH};
		3934
		3935	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3936	or return;
		3937
		3938	# clear all symbols
		3939	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3940	for my $name (keys %$leaf_symtab) {
		3941	_gv_clear *{"$pkg$name"};
		3942	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3943	}
		3944	}
		3945
		3946	sub do_reload_perl() {
		3947	# can/must only be called in main
		3948	unless (in_main) {
		3949	error "can only reload from main coroutine";
		3950	return;
		3951	}
		3952
		3953	return if $RELOAD++;
		3954
		3955	my $t1 = AE::time;
		3956
		3957	while ($RELOAD) {
		3958	cf::get_slot 0.1, -1, "reload_perl";
		3959	info "perl_reload: reloading...";
		3960
		3961	trace "perl_reload: entering sync_job";
		3962
		3963	cf::sync_job {
		3964	#cf::emergency_save;
		3965
		3966	trace "perl_reload: cancelling all extension coros";
		3967	$_->cancel for values %EXT_CORO;
		3968	%EXT_CORO = ();
		3969
		3970	trace "perl_reload: removing commands";
		3971	%COMMAND = ();
		3972
		3973	trace "perl_reload: removing ext/exti commands";
		3974	%EXTCMD = ();
		3975	%EXTICMD = ();
		3976
		3977	trace "perl_reload: unloading/nuking all extensions";
		3978	for my $pkg (@EXTS) {
		3979	trace "... unloading $pkg";
		3980
		3981	if (my $cb = $pkg->can ("unload")) {
		3982	eval {
		3983	$cb->($pkg);
		3984	1
		3985	} or error "$pkg unloaded, but with errors: $@";
		3986	}
		3987
		3988	trace "... clearing $pkg";
		3989	clear_package $pkg;
		3990	}
		3991
		3992	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3993	while (my ($k, $v) = each %INC) {
		3994	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3995
		3996	trace "... unloading $k";
		3997	delete $INC{$k};
		3998
		3999	$k =~ s/\.pm$//;
		4000	$k =~ s/\//::/g;
		4001
		4002	if (my $cb = $k->can ("unload_module")) {
		4003	$cb->();
		4004	}
		4005
		4006	clear_package $k;
		4007	}
		4008
		4009	trace "perl_reload: getting rid of safe::, as good as possible";
		4010	clear_package "safe::$_"
		4011	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		4012
		4013	trace "perl_reload: unloading cf.pm \"a bit\"";
		4014	delete $INC{"cf.pm"};
		4015	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		4016
		4017	# don't, removes xs symbols, too,
		4018	# and global variables created in xs
		4019	#clear_package __PACKAGE__;
		4020
		4021	info "perl_reload: unload completed, starting to reload now";
		4022
		4023	trace "perl_reload: reloading cf.pm";
		4024	require cf;
		4025	cf::_connect_to_perl_1;
		4026
		4027	trace "perl_reload: loading config and database again";
		4028	cf::reload_config;
		4029
		4030	trace "perl_reload: loading extensions";
		4031	cf::load_extensions;
		4032
		4033	if ($REATTACH_ON_RELOAD) {
		4034	trace "perl_reload: reattaching attachments to objects/players";
		4035	_global_reattach; # objects, sockets
		4036	trace "perl_reload: reattaching attachments to maps";
		4037	reattach $_ for values %MAP;
		4038	trace "perl_reload: reattaching attachments to players";
		4039	reattach $_ for values %PLAYER;
		4040	}
		4041
		4042	cf::_post_init 1;
		4043
		4044	trace "perl_reload: leaving sync_job";
		4045
		4046	1
		4047	} or do {
		4048	error $@;
		4049	cf::cleanup "perl_reload: error, exiting.";
		4050	};
		4051
		4052	--$RELOAD;
		4053	}
		4054
		4055	$t1 = AE::time - $t1;
		4056	info "perl_reload: completed in ${t1}s\n";
		4057	};
		4058
		4059	our $RELOAD_WATCHER; # used only during reload
		4060
		4061	sub reload_perl() {
		4062	# doing reload synchronously and two reloads happen back-to-back,
		4063	# coro crashes during coro_state_free->destroy here.
		4064
		4065	$RELOAD_WATCHER ||= cf::async {
		4066	Coro::AIO::aio_wait cache_extensions;
		4067
		4068	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4069	do_reload_perl;
		4070	undef $RELOAD_WATCHER;
		4071	};
		4072	};
		4073	}
		4074
		4075	register_command "reload" => sub {
		4076	my ($who, $arg) = @_;
		4077
		4078	if ($who->flag (FLAG_WIZ)) {
		4079	$who->message ("reloading server.");
		4080	async {
		4081	$Coro::current->{desc} = "perl_reload";
		4082	reload_perl;
		4083	};
		4084	}
		4085	};
		4086
		4087	#############################################################################
		4088
		4089	my $bug_warning = 0;
		4090
		4091	sub wait_for_tick() {
		4092	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4093
		4094	$WAIT_FOR_TICK->wait;
		4095	}
		4096
		4097	sub wait_for_tick_begin() {
		4098	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4099
		4100	my $signal = new Coro::Signal;
		4101	push @WAIT_FOR_TICK_BEGIN, $signal;
		4102	$signal->wait;
		4103	}
		4104
		4105	sub tick {
		4106	if ($Coro::current != $Coro::main) {
		4107	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4108	unless ++$bug_warning > 10;
		4109	return;
		4110	}
		4111
		4112	cf::one_tick; # one server iteration
		4113
		4114	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4115
		4116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4117	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4118	Coro::async_pool {
		4119	$Coro::current->{desc} = "runtime saver";
		4120	write_runtime_sync
		4121	or error "ERROR: unable to write runtime file: $!";
		4122	};
		4123	}
		4124
		4125	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4126	$sig->send;
		4127	}
		4128	$WAIT_FOR_TICK->broadcast;
		4129
		4130	$LOAD = ($NOW - $TICK_START) / $TICK;
		4131	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4132
		4133	if (0) {
		4134	if ($NEXT_TICK) {
		4135	my $jitter = $TICK_START - $NEXT_TICK;
		4136	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4137	debug "jitter $JITTER\n";#d#
		4138	}
		4139	}
		4140	}
1193		4141
1194	{	4142	{
1195	my $path = cf::localdir . "/database.pst";	4143	# configure BDB
1196		4144
1197	sub db_load() {	4145	BDB::min_parallel 16;
1198	warn "loading database $path\n";#d# remove later	4146	BDB::max_poll_reqs $TICK * 0.1;
1199	$DB = stat $path ? Storable::retrieve $path : { };	4147	#$AnyEvent::BDB::WATCHER->priority (1);
1200	}
1201		4148
1202	my $pid;	4149	unless ($DB_ENV) {
		4150	$DB_ENV = BDB::db_env_create;
		4151	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4152	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4153	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4154	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4155	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1203		4156
1204	sub db_save() {	4157	cf::sync_job {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {	4158	eval {
1241	$DB->{$_[0]} = $_[1];	4159	BDB::db_env_open
1242	}	4160	$DB_ENV,
1243	db_dirty;	4161	$BDBDIR,
1244	}	4162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4164	0666;
1245		4165
1246	cf::global->attach (	4166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},
1251	);
1252	}
1253
1254	#############################################################################
1255	# the server's main()
1256
1257	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;
1260
1261	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;
1263	}
1264
1265	sub main {
1266	cfg_load;
1267	db_load;
1268	load_extensions;
1269	Event::loop;
1270	}
1271
1272	#############################################################################
1273	# initialisation
1274
1275	sub _perl_reload() {
1276	warn "reloading...";
1277
1278	eval {
1279	local $FREEZE = 1;
1280
1281	cf::emergency_save;
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}
1287
1288	# cancel all extension coros
1289	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();
1291
1292	# unload all extensions
1293	for (@exts) {
1294	warn "unloading <$_>";
1295	unload_extension $_;
1296	}
1297
1298	# unload all modules loaded from $LIBDIR
1299	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301
1302	warn "removing <$k>";
1303	delete $INC{$k};
1304
1305	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;
1307
1308	if (my $cb = $k->can ("unload_module")) {
1309	$cb->();
1310	}	4167	};
1311		4168
1312	Symbol::delete_package $k;	4169	cf::cleanup "db_env_open(db): $@" if $@;
1313	}	4170	};
		4171	}
1314		4172
1315	# sync database to disk	4173	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1316	cf::db_sync;	4174	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible
1320	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"
1327	delete $INC{"cf.pm"};
1328
1329	# don't, removes xs symbols, too,
1330	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;
1332
1333	# reload cf.pm
1334	warn "reloading cf.pm";
1335	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337
1338	# load config and database again
1339	cf::cfg_load;
1340	cf::db_load;
1341
1342	# load extensions
1343	warn "load extensions";
1344	cf::load_extensions;
1345
1346	# reattach attachments to objects
1347	warn "reattach";
1348	_global_reattach;
1349	};	4175	};
1350	warn $@ if $@;	4176	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1351		4177	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1352	warn "reloaded";
1353	};
1354
1355	sub perl_reload() {
1356	_perl_reload;
1357	}
1358
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {
1362	my ($who, $arg) = @_;
1363
1364	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");
1366	_perl_reload;
1367	}	4178	};
1368	};	4179	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4180	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4181	};
		4182	}
1369		4183
1370	unshift @INC, $LIBDIR;	4184	{
		4185	# configure IO::AIO
1371		4186
1372	$TICK_WATCHER = Event->timer (	4187	IO::AIO::min_parallel 8;
1373	reentrant => 0,	4188	IO::AIO::max_poll_time $TICK * 0.1;
1374	prio => 0,	4189	undef $AnyEvent::AIO::WATCHER;
1375	at => $NEXT_TICK || $TICK,	4190	}
1376	data => WF_AUTOCANCEL,	4191
1377	cb => sub {	4192	our $_log_backtrace;
1378	unless ($FREEZE) {	4193	our $_log_backtrace_last;
1379	cf::server_tick; # one server iteration	4194
1380	$RUNTIME += $TICK;	4195	sub _log_backtrace {
		4196	my ($msg, @addr) = @_;
		4197
		4198	$msg =~ s/\n$//;
		4199
		4200	if ($_log_backtrace_last eq $msg) {
		4201	LOG llevInfo, "[ABT] $msg\n";
		4202	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4203	# limit the # of concurrent backtraces
		4204	} elsif ($_log_backtrace < 2) {
		4205	$_log_backtrace_last = $msg;
		4206	++$_log_backtrace;
		4207	my $perl_bt = Carp::longmess $msg;
		4208	async {
		4209	$Coro::current->{desc} = "abt $msg";
		4210
		4211	my @bt = fork_call {
		4212	@addr = map { sprintf "%x", $_ } @addr;
		4213	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4214	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4215	or die "addr2line: $!";
		4216
		4217	my @funcs;
		4218	my @res = <$fh>;
		4219	chomp for @res;
		4220	while (@res) {
		4221	my ($func, $line) = splice @res, 0, 2, ();
		4222	push @funcs, "[$func] $line";
		4223	}
		4224
		4225	@funcs
		4226	};
		4227
		4228	LOG llevInfo, "[ABT] $perl_bt\n";
		4229	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4230	LOG llevInfo, "[ABT] $_\n" for @bt;
		4231	--$_log_backtrace;
1381	}	4232	};
1382		4233	} else {
1383	$NEXT_TICK += $TICK;	4234	LOG llevInfo, "[ABT] $msg\n";
1384		4235	LOG llevInfo, "[ABT] [overload, suppressed]\n";
1385	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387
1388	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;
1390	},	4236	}
1391	);	4237	}
1392		4238
1393	IO::AIO::max_poll_time $TICK * 0.2;	4239	# load additional modules
		4240	require "cf/$_.pm" for @EXTRA_MODULES;
		4241	cf::_connect_to_perl_2;
1394		4242
1395	Event->io (fd => IO::AIO::poll_fileno,	4243	END { cf::emergency_save }
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);
1400
1401	# we must not ever block the main coroutine
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		4244
1410	1	4245	1
1411		4246

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