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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.598 by root, Sun Nov 11 02:38:10 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 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 AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3;	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
20	use Digest::MD5;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
21	use Fcntl;	60	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	61	use YAML::XS ();
24	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
34		85
35	our %COMMAND = ();	86	our %COMMAND = ();
36	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
38		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	98	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
45	our $NOW;	144	our $NOW;
46		145
47	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
48		149
49	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		152
52	our %MAP; # all maps	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	154	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	155	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
57		165
58	binmode STDOUT;	166	binmode STDOUT;
59	binmode STDERR;	167	binmode STDERR;
60		168
61	# read virtual server time, if available	169	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
66	}	174	}
67		175
68	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		177
74	# a special map that is always available	178	mkdir $_
75	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		180
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	181	our $EMERGENCY_POSITION;
		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
78		188
79	#############################################################################	189	#############################################################################
80		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
81	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
82		203
83	=over 4	204	=over 4
84		205
85	=item $cf::UPTIME	206	=item $cf::UPTIME
86		207
87	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
88		224
89	=item $cf::RUNTIME	225	=item $cf::RUNTIME
90		226
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	228	every server tick.
93		229
94	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		233
96	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
98		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
99	=item $cf::NOW	245	=item $cf::LOAD
100		246
101	The time of the last (current) server tick.	247	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		248
107	=item %cf::CFG	249	=item %cf::CFG
108		250
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	252	from wherever your confdir points to.
111		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		257	returns directly I<after> the tick processing (and consequently, can only wake one thread
		258	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		259
		260	Note that cf::Wait_for_tick will immediately return when the server is not
		261	ticking, making it suitable for small pauses in threads that need to run
		262	when the server is paused. If that is not applicable (i.e. you I<really>
		263	want to wait, use C<$cf::WAIT_FOR_TICK>).
		264
		265	=item $cf::WAIT_FOR_TICK
		266
		267	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		268	variable contains a L<Coro::Signal> that is broadcats after every server
		269	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		270	next server tick.
		271
		272	=cut
		273
		274	sub wait_for_tick();
		275	sub wait_for_tick_begin();
		276
		277	=item @cf::INVOKE_RESULTS
		278
		279	This array contains the results of the last C<invoke ()> call. When
		280	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		281	that call.
		282
		283	=item %cf::REFLECT
		284
		285	Contains, for each (C++) class name, a hash reference with information
		286	about object members (methods, scalars, arrays and flags) and other
		287	metadata, which is useful for introspection.
		288
112	=back	289	=back
113		290
114	=cut	291	=cut
115		292
116	BEGIN {	293	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	294	sub warn (@) { LOG llevWarn , join "", @_ }
		295	sub info (@) { LOG llevInfo , join "", @_ }
		296	sub debug(@) { LOG llevDebug, join "", @_ }
		297	sub trace(@) { LOG llevTrace, join "", @_ }
		298
		299	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	300	my $msg = join "", @_;
119	utf8::encode $msg;
120		301
121	$msg .= "\n"	302	$msg .= "\n"
122	unless $msg =~ /\n$/;	303	unless $msg =~ /\n$/;
123		304
124	LOG llevError, "cfperl: $msg";	305	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	306
126	}	307	LOG llevWarn, $msg;
		308	};
		309
		310	$Coro::State::DIEHOOK = sub {
		311	return unless $^S eq 0; # "eq", not "=="
		312
		313	error Carp::longmess $_[0];
		314
		315	if (in_main) {#d#
		316	error "DIEHOOK called in main context, Coro bug?\n";#d#
		317	return;#d#
		318	}#d#
		319
		320	# kill coroutine otherwise
		321	Coro::terminate
		322	};
127		323
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	324	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	325	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	326	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	327	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	328	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		329	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	330	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		331
135	# we bless all objects into (empty) derived classes to force a method lookup	332	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	333	# within the Safe compartment.
137	for my $pkg (qw(	334	for my $pkg (qw(
138	cf::global cf::attachable	335	cf::global cf::attachable
139	cf::object cf::object::player	336	cf::object cf::object::player
140	cf::client cf::player	337	cf::client cf::player
141	cf::arch cf::living	338	cf::arch cf::living
		339	cf::map cf::mapspace
142	cf::map cf::party cf::region	340	cf::party cf::region
143	)) {	341	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	342	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	343	}
147		344
148	$Event::DIED = sub {	345	$EV::DIED = sub {
149	warn "error in event callback: @_";	346	warn "error in event callback: $@";
150	};	347	};
151		348
152	my %ext_pkg;	349	#############################################################################
153	my @exts;	350
154	my @hook;	351	sub fork_call(&@);
		352	sub get_slot($;$$);
		353
		354	#############################################################################
155		355
156	=head2 UTILITY FUNCTIONS	356	=head2 UTILITY FUNCTIONS
157		357
158	=over 4	358	=over 4
159		359
160	=cut	360	=item dumpval $ref
161		361
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	362	=cut
163		363
		364	sub dumpval {
		365	eval {
		366	local $SIG{__DIE__};
		367	my $d;
		368	if (1) {
		369	$d = new Data::Dumper([$_[0]], ["*var"]);
		370	$d->Terse(1);
		371	$d->Indent(2);
		372	$d->Quotekeys(0);
		373	$d->Useqq(1);
		374	#$d->Bless(...);
		375	$d->Seen($_[1]) if @_ > 1;
		376	$d = $d->Dump();
		377	}
		378	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		379	$d
		380	} || "[unable to dump $_[0]: '$@']";
		381	}
		382
		383	=item $scalar = cf::load_file $path
		384
		385	Loads the given file from path and returns its contents. Croaks on error
		386	and can block.
		387
		388	=cut
		389
		390	sub load_file($) {
		391	0 <= aio_load $_[0], my $data
		392	or Carp::croak "$_[0]: $!";
		393
		394	$data
		395	}
		396
		397	=item $success = cf::replace_file $path, $data, $sync
		398
		399	Atomically replaces the file at the given $path with new $data, and
		400	optionally $sync the data to disk before replacing the file.
		401
		402	=cut
		403
		404	sub replace_file($$;$) {
		405	my ($path, $data, $sync) = @_;
		406
		407	my $lock = cf::lock_acquire ("replace_file:$path");
		408
		409	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		410	or return;
		411
		412	$data = $data->() if ref $data;
		413
		414	length $data == aio_write $fh, 0, (length $data), $data, 0
		415	or return;
		416
		417	!$sync
		418	or !aio_fsync $fh
		419	or return;
		420
		421	aio_close $fh
		422	and return;
		423
		424	aio_rename "$path~", $path
		425	and return;
		426
		427	if ($sync) {
		428	$path =~ s%/[^/]*$%%;
		429	aio_pathsync $path;
		430	}
		431
		432	1
		433	}
		434
164	=item $ref = cf::from_json $json	435	=item $ref = cf::decode_json $json
165		436
166	Converts a JSON string into the corresponding perl data structure.	437	Converts a JSON string into the corresponding perl data structure.
167		438
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	439	=item $json = cf::encode_json $ref
176		440
177	Converts a perl data structure into its JSON representation.	441	Converts a perl data structure into its JSON representation.
178		442
179	=cut	443	=cut
180		444
181	sub to_json($) {	445	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	446
183	JSON::Syck::Dump $_[0]	447	sub encode_json($) { $json_coder->encode ($_[0]) }
		448	sub decode_json($) { $json_coder->decode ($_[0]) }
		449
		450	=item $ref = cf::decode_storable $scalar
		451
		452	Same as Coro::Storable::thaw, so blocks.
		453
		454	=cut
		455
		456	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		457
		458	=item $ref = cf::decode_yaml $scalar
		459
		460	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		461
		462	=cut
		463
		464	sub decode_yaml($) {
		465	fork_call { YAML::XS::Load $_[0] } @_
184	}	466	}
		467
		468	=item $scalar = cf::unlzf $scalar
		469
		470	Same as Compress::LZF::compress, but takes server ticks into account, so
		471	blocks.
		472
		473	=cut
		474
		475	sub unlzf($) {
		476	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		477	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		478	Compress::LZF::decompress $_[0]
		479	}
		480
		481	=item cf::post_init { BLOCK }
		482
		483	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		484	but I<before> the server starts ticking again.
		485
		486	The codeblock will have a single boolean argument to indicate whether this
		487	is a reload or not.
		488
		489	=cut
		490
		491	sub post_init(&) {
		492	push @POST_INIT, shift;
		493	}
		494
		495	sub _post_init {
		496	trace "running post_init jobs";
		497
		498	# run them in parallel...
		499
		500	my @join;
		501
		502	while () {
		503	push @join, map &Coro::async ($_, 0), @POST_INIT;
		504	@POST_INIT = ();
		505
		506	@join or last;
		507
		508	(pop @join)->join;
		509	}
		510	}
		511
		512	=item cf::lock_wait $string
		513
		514	Wait until the given lock is available. See cf::lock_acquire.
		515
		516	=item my $lock = cf::lock_acquire $string
		517
		518	Wait until the given lock is available and then acquires it and returns
		519	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		520	for example when the coroutine gets canceled), the lock is automatically
		521	returned.
		522
		523	Locks are *not* recursive, locking from the same coro twice results in a
		524	deadlocked coro.
		525
		526	Lock names should begin with a unique identifier (for example, cf::map::find
		527	uses map_find and cf::map::load uses map_load).
		528
		529	=item $locked = cf::lock_active $string
		530
		531	Return true if the lock is currently active, i.e. somebody has locked it.
		532
		533	=cut
		534
		535	our $LOCKS = new Coro::SemaphoreSet;
		536
		537	sub lock_wait($) {
		538	$LOCKS->wait ($_[0]);
		539	}
		540
		541	sub lock_acquire($) {
		542	$LOCKS->guard ($_[0])
		543	}
		544
		545	sub lock_active($) {
		546	$LOCKS->count ($_[0]) < 1
		547	}
		548
		549	sub freeze_mainloop {
		550	tick_inhibit_inc;
		551
		552	&Guard::guard (\&tick_inhibit_dec);
		553	}
		554
		555	=item cf::periodic $interval, $cb
		556
		557	Like EV::periodic, but randomly selects a starting point so that the actions
		558	get spread over time.
		559
		560	=cut
		561
		562	sub periodic($$) {
		563	my ($interval, $cb) = @_;
		564
		565	my $start = rand List::Util::min 180, $interval;
		566
		567	EV::periodic $start, $interval, 0, $cb
		568	}
		569
		570	=item cf::get_slot $time[, $priority[, $name]]
		571
		572	Allocate $time seconds of blocking CPU time at priority C<$priority>
		573	(default: 0): This call blocks and returns only when you have at least
		574	C<$time> seconds of cpu time till the next tick. The slot is only valid
		575	till the next cede.
		576
		577	Background jobs should use a priority les than zero, interactive jobs
		578	should use 100 or more.
		579
		580	The optional C<$name> can be used to identify the job to run. It might be
		581	used for statistical purposes and should identify the same time-class.
		582
		583	Useful for short background jobs.
		584
		585	=cut
		586
		587	our @SLOT_QUEUE;
		588	our $SLOT_QUEUE;
		589	our $SLOT_DECAY = 0.9;
		590
		591	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		592	$SLOT_QUEUE = Coro::async {
		593	$Coro::current->desc ("timeslot manager");
		594
		595	my $signal = new Coro::Signal;
		596	my $busy;
		597
		598	while () {
		599	next_job:
		600
		601	my $avail = cf::till_tick;
		602
		603	for (0 .. $#SLOT_QUEUE) {
		604	if ($SLOT_QUEUE[$_][0] <= $avail) {
		605	$busy = 0;
		606	my $job = splice @SLOT_QUEUE, $_, 1, ();
		607	$job->[2]->send;
		608	Coro::cede;
		609	goto next_job;
		610	} else {
		611	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		612	}
		613	}
		614
		615	if (@SLOT_QUEUE) {
		616	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		617	$WAIT_FOR_TICK->wait;
		618	} else {
		619	$busy = 0;
		620	Coro::schedule;
		621	}
		622	}
		623	};
		624
		625	sub get_slot($;$$) {
		626	return if tick_inhibit || $Coro::current == $Coro::main;
		627
		628	my ($time, $pri, $name) = @_;
		629
		630	$time = clamp $time, 0.01, $TICK * .6;
		631
		632	my $sig = new Coro::Signal;
		633
		634	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		635	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		636	$SLOT_QUEUE->ready;
		637	$sig->wait;
		638	}
		639
		640	=item cf::async { BLOCK }
		641
		642	Currently the same as Coro::async_pool, meaning you cannot use
		643	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		644	thing you are allowed to do is call C<prio> on it.
		645
		646	=cut
		647
		648	BEGIN { *async = \&Coro::async_pool }
185		649
186	=item cf::sync_job { BLOCK }	650	=item cf::sync_job { BLOCK }
187		651
188	The design of crossfire+ requires that the main coro ($Coro::main) is	652	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	653	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	654	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		655	acceptable.
191		656
192	If it must be done, put the blocking parts into C<sync_job>. This will run	657	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	658	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	659	server will be frozen during this time, so the block should either finish
195	fast or be very important.	660	fast or be very important.
…		…
197	=cut	662	=cut
198		663
199	sub sync_job(&) {	664	sub sync_job(&) {
200	my ($job) = @_;	665	my ($job) = @_;
201		666
202	if ($Coro::current == $Coro::main) {	667	if (in_main) {
		668	my $time = AE::time;
		669
203	# this is the main coro, too bad, we have to block	670	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	671	# till the operation succeeds, freezing the server :/
205		672
206	# TODO: use suspend/resume instead	673	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	674
208	local $FREEZE = 1;	675	my $freeze_guard = freeze_mainloop;
209		676
210	my $busy = 1;	677	my $busy = 1;
211	my @res;	678	my @res;
212		679
213	(Coro::async {	680	(async {
		681	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	682	@res = eval { $job->() };
215	warn $@ if $@;	683	error $@ if $@;
216	undef $busy;	684	undef $busy;
217	})->prio (Coro::PRIO_MAX);	685	})->prio (Coro::PRIO_MAX);
218		686
219	while ($busy) {	687	while ($busy) {
		688	if (Coro::nready) {
220	Coro::cede_notself;	689	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	690	} else {
		691	EV::loop EV::LOOP_ONESHOT;
222	}	692	}
		693	}
		694
		695	my $time = AE::time - $time;
		696
		697	$TICK_START += $time; # do not account sync jobs to server load
223		698
224	wantarray ? @res : $res[0]	699	wantarray ? @res : $res[0]
225	} else {	700	} else {
226	# we are in another coroutine, how wonderful, everything just works	701	# we are in another coroutine, how wonderful, everything just works
227		702
228	$job->()	703	$job->()
229	}	704	}
230	}	705	}
231		706
232	=item $coro = cf::coro { BLOCK }	707	=item $coro = cf::async_ext { BLOCK }
233		708
234	Creates and returns a new coro. This coro is automcatially being canceled	709	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	710	extension calling this is being unloaded.
236		711
237	=cut	712	=cut
238		713
239	sub coro(&) {	714	sub async_ext(&) {
240	my $cb = shift;	715	my $cb = shift;
241		716
242	my $coro; $coro = async {	717	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		718
249	$coro->on_destroy (sub {	719	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	720	delete $EXT_CORO{$coro+0};
251	});	721	});
252	$EXT_CORO{$coro+0} = $coro;	722	$EXT_CORO{$coro+0} = $coro;
253		723
254	$coro	724	$coro
255	}	725	}
256		726
257	sub write_runtime {	727	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		728
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	729	Executes the given code block with the given arguments in a seperate
261	or return;	730	process, returning the results. Everything must be serialisable with
		731	Coro::Storable. May, of course, block. Note that the executed sub may
		732	never block itself or use any form of event handling.
262		733
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	734	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		735
267	aio_fsync $fh	736	sub post_fork {
268	and return;	737	reset_signals;
		738	}
269		739
270	close $fh	740	sub fork_call(&@) {
271	or return;	741	my ($cb, @args) = @_;
272		742
273	aio_rename "$runtime~", $runtime	743	# we seemingly have to make a local copy of the whole thing,
274	and return;	744	# otherwise perl prematurely frees the stuff :/
		745	# TODO: investigate and fix (likely this will be rather laborious)
275		746
		747	my @res = Coro::Util::fork_eval {
		748	cf::post_fork;
		749	&$cb
		750	} @args;
		751
		752	wantarray ? @res : $res[-1]
		753	}
		754
		755	sub objinfo {
276	1	756	(
		757	"counter value" => cf::object::object_count,
		758	"objects created" => cf::object::create_count,
		759	"objects destroyed" => cf::object::destroy_count,
		760	"freelist size" => cf::object::free_count,
		761	"allocated objects" => cf::object::objects_size,
		762	"active objects" => cf::object::actives_size,
		763	)
		764	}
		765
		766	=item $coin = coin_from_name $name
		767
		768	=cut
		769
		770	our %coin_alias = (
		771	"silver" => "silvercoin",
		772	"silvercoin" => "silvercoin",
		773	"silvercoins" => "silvercoin",
		774	"gold" => "goldcoin",
		775	"goldcoin" => "goldcoin",
		776	"goldcoins" => "goldcoin",
		777	"platinum" => "platinacoin",
		778	"platinumcoin" => "platinacoin",
		779	"platinumcoins" => "platinacoin",
		780	"platina" => "platinacoin",
		781	"platinacoin" => "platinacoin",
		782	"platinacoins" => "platinacoin",
		783	"royalty" => "royalty",
		784	"royalties" => "royalty",
		785	);
		786
		787	sub coin_from_name($) {
		788	$coin_alias{$_[0]}
		789	? cf::arch::find $coin_alias{$_[0]}
		790	: undef
		791	}
		792
		793	=item $value = cf::db_get $family => $key
		794
		795	Returns a single value from the environment database.
		796
		797	=item cf::db_put $family => $key => $value
		798
		799	Stores the given C<$value> in the family. It can currently store binary
		800	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		801
		802	=item $db = cf::db_table "name"
		803
		804	Create and/or open a new database table. The string must not be "db" and must be unique
		805	within each server.
		806
		807	=cut
		808
		809	sub db_table($) {
		810	cf::error "db_get called from main context"
		811	if $Coro::current == $Coro::main;
		812
		813	my ($name) = @_;
		814	my $db = BDB::db_create $DB_ENV;
		815
		816	eval {
		817	$db->set_flags (BDB::CHKSUM);
		818
		819	utf8::encode $name;
		820	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		821	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		822	cf::cleanup "db_open(db): $!" if $!;
		823	};
		824	cf::cleanup "db_open(db): $@" if $@;
		825
		826	$db
		827	}
		828
		829	our $DB;
		830
		831	sub db_init {
		832	$DB ||= db_table "db";
		833	}
		834
		835	sub db_get($$) {
		836	my $key = "$_[0]/$_[1]";
		837
		838	cf::error "db_get called from main context"
		839	if $Coro::current == $Coro::main;
		840
		841	BDB::db_get $DB, undef, $key, my $data;
		842
		843	$! ? ()
		844	: $data
		845	}
		846
		847	sub db_put($$$) {
		848	BDB::dbreq_pri 4;
		849	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		850	}
		851
		852	=item cf::cache $id => [$paths...], $processversion => $process
		853
		854	Generic caching function that returns the value of the resource $id,
		855	caching and regenerating as required.
		856
		857	This function can block.
		858
		859	=cut
		860
		861	sub cache {
		862	my ($id, $src, $processversion, $process) = @_;
		863
		864	my $meta =
		865	join "\x00",
		866	$processversion,
		867	map {
		868	aio_stat $_
		869	and Carp::croak "$_: $!";
		870
		871	($_, (stat _)[7,9])
		872	} @$src;
		873
		874	my $dbmeta = db_get cache => "$id/meta";
		875	if ($dbmeta ne $meta) {
		876	# changed, we may need to process
		877
		878	my @data;
		879	my $md5;
		880
		881	for (0 .. $#$src) {
		882	$data[$_] = load_file $src->[$_];
		883	}
		884
		885	# if processing is expensive, check
		886	# checksum first
		887	if (1) {
		888	$md5 =
		889	join "\x00",
		890	$processversion,
		891	map {
		892	cf::cede_to_tick;
		893	($src->[$_], Digest::MD5::md5_hex $data[$_])
		894	} 0.. $#$src;
		895
		896
		897	my $dbmd5 = db_get cache => "$id/md5";
		898	if ($dbmd5 eq $md5) {
		899	db_put cache => "$id/meta", $meta;
		900
		901	return db_get cache => "$id/data";
		902	}
		903	}
		904
		905	my $t1 = EV::time;
		906	my $data = $process->(\@data);
		907	my $t2 = EV::time;
		908
		909	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		910
		911	db_put cache => "$id/data", $data;
		912	db_put cache => "$id/md5" , $md5;
		913	db_put cache => "$id/meta", $meta;
		914
		915	return $data;
		916	}
		917
		918	db_get cache => "$id/data"
		919	}
		920
		921	=item cf::datalog type => key => value, ...
		922
		923	Log a datalog packet of the given type with the given key-value pairs.
		924
		925	=cut
		926
		927	sub datalog($@) {
		928	my ($type, %kv) = @_;
		929	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	930	}
278		931
279	=back	932	=back
280		933
281	=cut	934	=cut
282		935
283	#############################################################################	936	#############################################################################
284		937
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	938	=head2 ATTACHABLE OBJECTS
396		939
397	Many objects in crossfire are so-called attachable objects. That means you can	940	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	941	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	942	to it. All such attachable objects support the following methods.
400		943
401	In the following description, CLASS can be any of C<global>, C<object>	944	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	945	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	946	Deliantra).
404		947
405	=over 4	948	=over 4
406		949
407	=item $attachable->attach ($attachment, key => $value...)	950	=item $attachable->attach ($attachment, key => $value...)
408		951
…		…
452	=item cf::CLASS::attachment $name, ...	995	=item cf::CLASS::attachment $name, ...
453		996
454	Register an attachment by C<$name> through which attachable objects of the	997	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	998	given CLASS can refer to this attachment.
456		999
457	Some classes such as crossfire maps and objects can specify attachments	1000	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1001	that are attached at load/instantiate time, thus the need for a name.
459		1002
460	These calls expect any number of the following handler/hook descriptions:	1003	These calls expect any number of the following handler/hook descriptions:
461		1004
462	=over 4	1005	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	1065	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	1066	our @CB_MAP = ();
524		1067
525	my %attachment;	1068	my %attachment;
526		1069
		1070	sub cf::attachable::thawer_merge {
		1071	# simply override everything except _meta
		1072	local $_[0]{_meta};
		1073	%{$_[0]} = %{$_[1]};
		1074	}
		1075
527	sub _attach_cb($$$$) {	1076	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	1077	my ($registry, $event, $prio, $cb) = @_;
529		1078
530	use sort 'stable';	1079	use sort 'stable';
531		1080
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1114	$registry = $CB_TYPE[$object_type] ||= [];
566		1115
567	} elsif ($type eq "subtype") {	1116	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1117	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1118	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1119	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1120
572	} elsif ($type eq "package") {	1121	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1122	my $pkg = shift @arg;
574		1123
575	while (my ($name, $id) = each %cb_id) {	1124	while (my ($name, $id) = each %cb_id) {
…		…
580		1129
581	} elsif (exists $cb_id{$type}) {	1130	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1131	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1132
584	} elsif (ref $type) {	1133	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1134	error "attaching objects not supported, ignoring.\n";
586		1135
587	} else {	1136	} else {
588	shift @arg;	1137	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1138	error "attach argument '$type' not supported, ignoring.\n";
590	}	1139	}
591	}	1140	}
592	}	1141	}
593		1142
594	sub _object_attach {	1143	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1153	_attach $registry, $klass, @attach;
605	}	1154	}
606		1155
607	$obj->{$name} = \%arg;	1156	$obj->{$name} = \%arg;
608	} else {	1157	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1158	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1159	}
611		1160
612	$obj->{_attachment}{$name} = undef;	1161	$obj->{_attachment}{$name} = undef;
613	}	1162	}
614		1163
…		…
616	if (ref $_[0]) {	1165	if (ref $_[0]) {
617	_object_attach @_;	1166	_object_attach @_;
618	} else {	1167	} else {
619	_attach shift->_attach_registry, @_;	1168	_attach shift->_attach_registry, @_;
620	}	1169	}
		1170	_recalc_want;
621	};	1171	};
622		1172
623	# all those should be optimised	1173	# all those should be optimised
624	sub cf::attachable::detach {	1174	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1175	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1178	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1179	reattach ($obj);
630	} else {	1180	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1181	Carp::croak "cannot, currently, detach class attachments";
632	}	1182	}
		1183	_recalc_want;
633	};	1184	};
634		1185
635	sub cf::attachable::attached {	1186	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1187	my ($obj, $name) = @_;
637		1188
…		…
652	";	1203	";
653	die if $@;	1204	die if $@;
654	}	1205	}
655		1206
656	our $override;	1207	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1208	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1209
659	sub override {	1210	sub override {
660	$override = 1;	1211	$override = 1;
661	@invoke_results = ();	1212	@INVOKE_RESULTS = (@_);
662	}	1213	}
663		1214
664	sub do_invoke {	1215	sub do_invoke {
665	my $event = shift;	1216	my $event = shift;
666	my $callbacks = shift;	1217	my $callbacks = shift;
667		1218
668	@invoke_results = ();	1219	@INVOKE_RESULTS = ();
669		1220
670	local $override;	1221	local $override;
671		1222
672	for (@$callbacks) {	1223	for (@$callbacks) {
673	eval { &{$_->[1]} };	1224	eval { &{$_->[1]} };
674		1225
675	if ($@) {	1226	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1227	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1228	override;
679	}	1229	}
680		1230
681	return 1 if $override;	1231	return 1 if $override;
682	}	1232	}
683		1233
684	0	1234	0
685	}	1235	}
686		1236
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1237	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1238
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1239	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1240
691	Generate an object-specific event with the given arguments.	1241	Generate an object-specific event with the given arguments.
692		1242
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1243	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1244	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1245	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1246
697	=back	1247	=back
698		1248
699	=cut	1249	=cut
700		1250
701	#############################################################################	1251	#############################################################################
702	# object support	1252	# object support
		1253
		1254	sub _object_equal($$);
		1255	sub _object_equal($$) {
		1256	my ($a, $b) = @_;
		1257
		1258	return 0 unless (ref $a) eq (ref $b);
		1259
		1260	if ("HASH" eq ref $a) {
		1261	my @ka = keys %$a;
		1262	my @kb = keys %$b;
		1263
		1264	return 0 if @ka != @kb;
		1265
		1266	for (0 .. $#ka) {
		1267	return 0 unless $ka[$_] eq $kb[$_];
		1268	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1269	}
		1270
		1271	} elsif ("ARRAY" eq ref $a) {
		1272
		1273	return 0 if @$a != @$b;
		1274
		1275	for (0 .. $#$a) {
		1276	return 0 unless _object_equal $a->[$_], $b->[$_];
		1277	}
		1278
		1279	} elsif ($a ne $b) {
		1280	return 0;
		1281	}
		1282
		1283	1
		1284	}
		1285
		1286	our $SLOW_MERGES;#d#
		1287	sub _can_merge {
		1288	my ($ob1, $ob2) = @_;
		1289
		1290	++$SLOW_MERGES;#d#
		1291
		1292	# we do the slow way here
		1293	return _object_equal $ob1, $ob2
		1294	}
703		1295
704	sub reattach {	1296	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1297	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1298	my ($obj) = @_;
		1299
		1300	# no longer needed after getting rid of delete_package?
		1301	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1302
708	my $registry = $obj->registry;	1303	my $registry = $obj->registry;
709		1304
710	@$registry = ();	1305	@$registry = ();
711		1306
…		…
716	for (@$attach) {	1311	for (@$attach) {
717	my ($klass, @attach) = @$_;	1312	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1313	_attach $registry, $klass, @attach;
719	}	1314	}
720	} else {	1315	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1316	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1317	}
723	}	1318	}
724	}	1319	}
725		1320
726	cf::attachable->attach (	1321	cf::attachable->attach (
727	prio => -1000000,	1322	prio => -1000000,
728	on_instantiate => sub {	1323	on_instantiate => sub {
729	my ($obj, $data) = @_;	1324	my ($obj, $data) = @_;
730		1325
731	$data = from_json $data;	1326	$data = decode_json $data;
732		1327
733	for (@$data) {	1328	for (@$data) {
734	my ($name, $args) = @$_;	1329	my ($name, $args) = @$_;
735		1330
736	$obj->attach ($name, %{$args || {} });	1331	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1347	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1348	my ($filename, $rdata, $objs) = @_;
754		1349
755	sync_job {	1350	sync_job {
756	if (length $$rdata) {	1351	if (length $$rdata) {
		1352	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1353	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1354	$decname, length $$rdata, scalar @$objs
		1355	if $VERBOSE_IO;
759		1356
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1357	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1358	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1359	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1360	if ($cf::USE_FSYNC) {
		1361	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;
763	aio_fsync $fh;	1362	aio_fsync $fh;
		1363	}
764	close $fh;	1364	aio_close $fh;
765		1365
766	if (@$objs) {	1366	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1367	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1368	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1369	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1370	aio_write $fh, 0, (length $data), $data, 0;
		1371	if ($cf::USE_FSYNC) {
		1372	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;
771	aio_fsync $fh;	1373	aio_fsync $fh;
		1374	}
772	close $fh;	1375	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1376	aio_rename "$filename.pst~", "$filename.pst";
774	}	1377	}
775	} else {	1378	} else {
776	aio_unlink "$filename.pst";	1379	aio_unlink "$filename.pst";
777	}	1380	}
778		1381
779	aio_rename "$filename~", $filename;	1382	aio_rename "$filename~", $filename;
		1383
		1384	$filename =~ s%/[^/]+$%%;
		1385	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1386	} else {
781	warn "FATAL: $filename~: $!\n";	1387	error "unable to save objects: $filename~: $!\n";
782	}	1388	}
783	} else {	1389	} else {
784	aio_unlink $filename;	1390	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1391	aio_unlink "$filename.pst";
786	}	1392	}
787	}	1393	};
788	}	1394	}
789		1395
790	sub object_freezer_as_string {	1396	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1397	my ($rdata, $objs) = @_;
792		1398
…		…
804	or return;	1410	or return;
805		1411
806	unless (aio_stat "$filename.pst") {	1412	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1413	(aio_load "$filename.pst", $av) >= 0
808	or return;	1414	or return;
		1415
809	$av = eval { (Storable::thaw $av)->{objs} };	1416	my $st = eval { Coro::Storable::thaw $av };
		1417	$av = $st->{objs};
810	}	1418	}
811		1419
		1420	utf8::decode (my $decname = $filename);
		1421	trace sprintf "loading %s (%d,%d)\n",
		1422	$decname, length $data, scalar @{$av || []}
		1423	if $VERBOSE_IO;
		1424
812	return ($data, $av);	1425	($data, $av)
813	}	1426	}
		1427
		1428	=head2 COMMAND CALLBACKS
		1429
		1430	=over 4
		1431
		1432	=cut
814		1433
815	#############################################################################	1434	#############################################################################
816	# command handling &c	1435	# command handling &c
817		1436
818	=item cf::register_command $name => \&callback($ob,$args);	1437	=item cf::register_command $name => \&callback($ob,$args)
819		1438
820	Register a callback for execution when the client sends the user command	1439	Register a callback for execution when the client sends the user command
821	$name.	1440	$name.
822		1441
823	=cut	1442	=cut
…		…
829	#warn "registering command '$name/$time' to '$caller'";	1448	#warn "registering command '$name/$time' to '$caller'";
830		1449
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1450	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1451	}
833		1452
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1453	=item cf::register_extcmd $name => \&callback($pl,@args)
835		1454
836	Register a callbackf ro execution when the client sends an extcmd packet.	1455	Register a callback for execution when the client sends an (synchronous)
		1456	extcmd packet. Ext commands will be processed in the order they are
		1457	received by the server, like other user commands. The first argument is
		1458	the logged-in player. Ext commands can only be processed after a player
		1459	has logged in successfully.
837		1460
838	If the callback returns something, it is sent back as if reply was being	1461	The values will be sent back to the client.
839	called.
840		1462
841	=cut	1463	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
842		1464
		1465	Same as C<cf::register_extcmd>, but instead of returning values, the
		1466	callback needs to clal the C<$reply> function.
		1467
		1468	=item cf::register_exticmd $name => \&callback($ns,@args)
		1469
		1470	Register a callback for execution when the client sends an (asynchronous)
		1471	exticmd packet. Exti commands are processed by the server as soon as they
		1472	are received, i.e. out of order w.r.t. other commands. The first argument
		1473	is a client socket. Exti commands can be received anytime, even before
		1474	log-in.
		1475
		1476	The values will be sent back to the client.
		1477
		1478	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1479
		1480	Same as C<cf::register_extcmd>, but instead of returning values, the
		1481	callback needs to clal the C<$reply> function.
		1482
		1483	=cut
		1484
843	sub register_extcmd {	1485	sub register_extcmd($$) {
844	my ($name, $cb) = @_;	1486	my ($name, $cb) = @_;
845		1487
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1488	$EXTCMD{$name} = $cb;
850	}	1489	}
		1490
		1491	sub register_async_extcmd($$) {
		1492	my ($name, $cb) = @_;
		1493
		1494	$EXTACMD{$name} = $cb;
		1495	}
		1496
		1497	sub register_exticmd($$) {
		1498	my ($name, $cb) = @_;
		1499
		1500	$EXTICMD{$name} = $cb;
		1501	}
		1502
		1503	sub register_async_exticmd($$) {
		1504	my ($name, $cb) = @_;
		1505
		1506	$EXTIACMD{$name} = $cb;
		1507	}
		1508
		1509	use File::Glob ();
851		1510
852	cf::player->attach (	1511	cf::player->attach (
853	on_command => sub {	1512	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1513	my ($pl, $name, $params) = @_;
855		1514
856	my $cb = $COMMAND{$name}	1515	my $cb = $COMMAND{$name}
857	or return;	1516	or return;
858		1517
…		…
863	cf::override;	1522	cf::override;
864	},	1523	},
865	on_extcmd => sub {	1524	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1525	my ($pl, $buf) = @_;
867		1526
868	my $msg = eval { from_json $buf };	1527	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1528
870	if (ref $msg) {	1529	if (ref $msg) {
		1530	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1531
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1532	if (my $cb = $EXTACMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1533	$cb->(
873	$pl->ext_reply ($msg->{msgid}, %reply);	1534	$pl,
		1535	sub {
		1536	$pl->ext_msg ("reply-$reply", @_)
		1537	if $reply;
		1538	},
		1539	@payload
		1540	);
		1541	} else {
		1542	my @reply;
		1543
		1544	if (my $cb = $EXTCMD{$type}) {
		1545	@reply = $cb->($pl, @payload);
874	}	1546	}
		1547
		1548	$pl->ext_msg ("reply-$reply", @reply)
		1549	if $reply;
875	}	1550	}
		1551
876	} else {	1552	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1553	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1554	}
879		1555
880	cf::override;	1556	cf::override;
881	},	1557	},
882	);	1558	);
883		1559
884	sub register {	1560	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1561	sub cache_extensions {
891	my ($path) = @_;	1562	my $grp = IO::AIO::aio_group;
892		1563
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1564	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1565	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1566	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1567	}
943	}	1568	};
944		1569
945	# remove extcmds	1570	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1571	}
947	delete $EXTCMD{$name};
948	}
949		1572
950	if (my $cb = $pkg->can ("unload")) {	1573	sub _ext_cfg_reg($$$$) {
951	eval {	1574	my ($rvar, $varname, $cfgname, $default) = @_;
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956		1575
957	Symbol::delete_package $pkg;	1576	$cfgname = lc $varname
		1577	unless length $cfgname;
		1578
		1579	$EXT_CFG{$cfgname} = [$rvar, $default];
		1580
		1581	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
958	}	1582	}
959		1583
960	sub load_extensions {	1584	sub load_extensions {
		1585	info "loading extensions...";
		1586
		1587	%EXT_CFG = ();
		1588
		1589	cf::sync_job {
		1590	my %todo;
		1591
961	for my $ext (<$LIBDIR/*.ext>) {	1592	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1593	next unless -r $path;
963	eval {	1594
964	load_extension $ext;	1595	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1596	my $base = $1;
		1597	my $pkg = $1;
		1598	$pkg =~ s/[^[:word:]]/_/g;
		1599	$pkg = "ext::$pkg";
		1600
		1601	open my $fh, "<:utf8", $path
		1602	or die "$path: $!";
		1603
		1604	my $source = do { local $/; <$fh> };
		1605
		1606	my %ext = (
		1607	path => $path,
		1608	base => $base,
		1609	pkg => $pkg,
		1610	);
		1611
		1612	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1613	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1614
		1615	$ext{source} =
		1616	"package $pkg; use common::sense;\n"
		1617	. "#line 1 \"$path\"\n{\n"
		1618	. $source
		1619	. "\n};\n1";
		1620
		1621	$todo{$base} = \%ext;
		1622	}
		1623
		1624	my $pass = 0;
		1625	my %done;
		1626	while (%todo) {
		1627	my $progress;
		1628
		1629	++$pass;
		1630
		1631	ext:
		1632	while (my ($k, $v) = each %todo) {
		1633	for (split /,\s*/, $v->{meta}{depends}) {
		1634	next ext
		1635	unless exists $done{$_};
		1636	}
		1637
		1638	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1639
		1640	my $source = $v->{source};
		1641
		1642	# support "CONF varname :confname = default" pseudo-statements
		1643	$source =~ s{
		1644	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1645	}{
		1646	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1647	}gmxe;
		1648
		1649	my $active = eval $source;
		1650
		1651	if (length $@) {
		1652	error "$v->{path}: $@\n";
		1653
		1654	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1655	if exists $v->{meta}{mandatory};
		1656
		1657	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1658	delete $todo{$k};
		1659	} else {
		1660	$done{$k} = delete $todo{$k};
		1661	push @EXTS, $v->{pkg};
		1662	$progress = 1;
		1663
		1664	info "$v->{base}: extension inactive.\n"
		1665	unless $active;
		1666	}
965	1	1667	}
966	} or warn "$ext not loaded: $@";	1668
		1669	unless ($progress) {
		1670	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1671
		1672	while (my ($k, $v) = each %todo) {
		1673	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1674	if exists $v->{meta}{mandatory};
		1675	}
		1676
		1677	last;
		1678	}
		1679	}
967	}	1680	};
968	}	1681	}
969		1682
970	#############################################################################	1683	#############################################################################
971	# load/save/clean perl data associated with a map
972		1684
973	*cf::mapsupport::on_clean = sub {	1685	=back
		1686
		1687	=head2 CORE EXTENSIONS
		1688
		1689	Functions and methods that extend core deliantra objects.
		1690
		1691	=cut
		1692
		1693	package cf::player;
		1694
		1695	use Coro::AIO;
		1696
		1697	=head3 cf::player
		1698
		1699	=over 4
		1700
		1701	=item cf::player::num_playing
		1702
		1703	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1704
		1705	=cut
		1706
		1707	sub num_playing {
		1708	scalar grep
		1709	$_->ob->map
		1710	&& !$_->hidden
		1711	&& !$_->ob->flag (cf::FLAG_WIZ),
		1712	cf::player::list
		1713	}
		1714
		1715	=item cf::player::find $login
		1716
		1717	Returns the given player object, loading it if necessary (might block).
		1718
		1719	=cut
		1720
		1721	sub playerdir($) {
		1722	"$PLAYERDIR/"
		1723	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1724	}
		1725
		1726	sub path($) {
		1727	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1728
		1729	(playerdir $login) . "/playerdata"
		1730	}
		1731
		1732	sub find_active($) {
		1733	$cf::PLAYER{$_[0]}
		1734	and $cf::PLAYER{$_[0]}->active
		1735	and $cf::PLAYER{$_[0]}
		1736	}
		1737
		1738	sub exists($) {
974	my ($map) = @_;	1739	my ($login) = @_;
975		1740
976	my $path = $map->tmpname;	1741	$cf::PLAYER{$login}
977	defined $path or return;	1742	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1743	}
990		1744
991	# TODO: compatibility cruft, remove when no longer needed	1745	sub find($) {
		1746	return $cf::PLAYER{$_[0]} || do {
		1747	my $login = $_[0];
		1748
		1749	my $guard = cf::lock_acquire "user_find:$login";
		1750
		1751	$cf::PLAYER{$_[0]} || do {
		1752	# rename old playerfiles to new ones
		1753	#TODO: remove when no longer required
		1754	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1755	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1756	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1757	aio_unlink +(playerdir $login) . "/$login.pl";
		1758
		1759	my $f = new_from_file cf::object::thawer path $login
		1760	or return;
		1761
		1762	my $pl = cf::player::load_pl $f
		1763	or return;
		1764
		1765	local $cf::PLAYER_LOADING{$login} = $pl;
		1766	$f->resolve_delayed_derefs;
		1767	$cf::PLAYER{$login} = $pl
		1768	}
		1769	}
		1770	}
		1771
992	cf::player->attach (	1772	cf::player->attach (
993	on_load => sub {	1773	on_load => sub {
994	my ($pl, $path) = @_;	1774	my ($pl, $path) = @_;
995		1775
996	for my $o (all_objects $pl->ob) {	1776	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1777	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1778
1000	%$o = %{ Storable::thaw pack "H*", $value };	1779	$pl->ob->current_weapon ($slots->[0]);
1001	}	1780	$pl->combat_ob ($slots->[1]);
1002	}	1781	$pl->ranged_ob ($slots->[2]);
1003	},	1782	},
1004	);	1783	);
1005		1784
1006	#############################################################################	1785	sub save($) {
		1786	my ($pl) = @_;
1007		1787
1008	=head2 CORE EXTENSIONS	1788	return if $pl->{deny_save};
1009		1789
1010	Functions and methods that extend core crossfire objects.	1790	my $path = path $pl;
		1791	my $guard = cf::lock_acquire "user_save:$path";
1011		1792
1012	=head3 cf::player	1793	return if $pl->{deny_save};
		1794
		1795	aio_mkdir playerdir $pl, 0770;
		1796	$pl->{last_save} = $cf::RUNTIME;
		1797
		1798	cf::get_slot 0.01;
		1799
		1800	# save slots, to be restored later
		1801	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1802
		1803	$pl->save_pl ($path);
		1804	cf::cede_to_tick;
		1805	}
		1806
		1807	sub new($) {
		1808	my ($login) = @_;
		1809
		1810	my $self = create;
		1811
		1812	$self->ob->name ($login);
		1813	$self->{deny_save} = 1;
		1814
		1815	$cf::PLAYER{$login} = $self;
		1816
		1817	$self
		1818	}
		1819
		1820	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1821
		1822	=cut
		1823
		1824	sub send_msg {
		1825	my $ns = shift->ns
		1826	or return;
		1827	$ns->send_msg (@_);
		1828	}
		1829
		1830	=item $pl->quit_character
		1831
		1832	Nukes the player without looking back. If logged in, the connection will
		1833	be destroyed. May block for a long time.
		1834
		1835	=cut
		1836
		1837	sub quit_character {
		1838	my ($pl) = @_;
		1839
		1840	my $name = $pl->ob->name;
		1841
		1842	$pl->{deny_save} = 1;
		1843	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1846	$pl->deactivate;
		1847
		1848	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1849	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1850	ext::highscore::check ($pl->ob);
		1851
		1852	$pl->ns->destroy if $pl->ns;
		1853
		1854	my $path = playerdir $pl;
		1855	my $temp = "$path~$cf::RUNTIME~deleting~";
		1856	aio_rename $path, $temp;
		1857	delete $cf::PLAYER{$pl->ob->name};
		1858	$pl->destroy;
		1859
		1860	my $prefix = qr<^~\Q$name\E/>;
		1861
		1862	# nuke player maps
		1863	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1864
		1865	IO::AIO::aio_rmtree $temp;
		1866	}
		1867
		1868	=item $pl->kick
		1869
		1870	Kicks a player out of the game. This destroys the connection.
		1871
		1872	=cut
		1873
		1874	sub kick {
		1875	my ($pl, $kicker) = @_;
		1876
		1877	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1878	$pl->killer ("kicked");
		1879	$pl->ns->destroy;
		1880	}
		1881
		1882	=item cf::player::list_logins
		1883
		1884	Returns am arrayref of all valid playernames in the system, can take a
		1885	while and may block, so not sync_job-capable, ever.
		1886
		1887	=cut
		1888
		1889	sub list_logins {
		1890	my $dirs = aio_readdir $PLAYERDIR
		1891	or return [];
		1892
		1893	my @logins;
		1894
		1895	for my $login (@$dirs) {
		1896	my $path = path $login;
		1897
		1898	# a .pst is a dead give-away for a valid player
		1899	# if no pst file found, open and chekc for blocked users
		1900	if (aio_stat "$path.pst") {
		1901	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1902	aio_read $fh, 0, 512, my $buf, 0 or next;
		1903	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1904	}
		1905
		1906	utf8::decode $login;
		1907	push @logins, $login;
		1908	}
		1909
		1910	\@logins
		1911	}
		1912
		1913	=item $player->maps
		1914
		1915	=item cf::player::maps $login
		1916
		1917	Returns an arrayref of map paths that are private for this
		1918	player. May block.
		1919
		1920	=cut
		1921
		1922	sub maps($) {
		1923	my ($pl) = @_;
		1924
		1925	$pl = ref $pl ? $pl->ob->name : $pl;
		1926
		1927	my $files = aio_readdir playerdir $pl
		1928	or return;
		1929
		1930	my @paths;
		1931
		1932	for (@$files) {
		1933	utf8::decode $_;
		1934	next if /\.(?:pl|pst)$/;
		1935	next unless /^$PATH_SEP/o;
		1936
		1937	push @paths, cf::map::normalise "~$pl/$_";
		1938	}
		1939
		1940	\@paths
		1941	}
		1942
		1943	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1944
		1945	Expand deliantra pod fragments into protocol xml.
		1946
		1947	=item $player->ext_msg ($type, @msg)
		1948
		1949	Sends an ext event to the client.
		1950
		1951	=cut
		1952
		1953	sub ext_msg($$@) {
		1954	my ($self, $type, @msg) = @_;
		1955
		1956	$self->ns->ext_msg ($type, @msg);
		1957	}
		1958
		1959	=head3 cf::region
1013		1960
1014	=over 4	1961	=over 4
1015		1962
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1963	=cut
1021		1964
1022	sub cf::player::exists($) {	1965	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1966
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1967	=item cf::region::find_by_path $path
1028		1968
1029	Sends an ext reply to the player.	1969	Tries to decuce the likely region for a map knowing only its path.
1030		1970
1031	=cut	1971	=cut
1032		1972
1033	sub cf::player::ext_reply($$$%) {	1973	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1974	my ($path) = @_;
1035		1975
1036	$msg{msgid} = $id;	1976	$path =~ s/^~[^\/]*//; # skip ~login
1037		1977
1038	$self->send ("ext " . to_json \%msg);	1978	my ($match, $specificity);
		1979
		1980	for my $region (list) {
		1981	if ($region->{match} && $path =~ $region->{match}) {
		1982	($match, $specificity) = ($region, $region->specificity)
		1983	if $region->specificity > $specificity;
		1984	}
		1985	}
		1986
		1987	$match
1039	}	1988	}
1040		1989
1041	=back	1990	=back
1042
1043		1991
1044	=head3 cf::map	1992	=head3 cf::map
1045		1993
1046	=over 4	1994	=over 4
1047		1995
…		…
1050	package cf::map;	1998	package cf::map;
1051		1999
1052	use Fcntl;	2000	use Fcntl;
1053	use Coro::AIO;	2001	use Coro::AIO;
1054		2002
		2003	use overload
		2004	'""' => \&as_string,
		2005	fallback => 1;
		2006
1055	our $MAX_RESET = 7200;	2007	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	2008	our $DEFAULT_RESET = 3000;
1057		2009
1058	sub generate_random_map {	2010	sub generate_random_map {
		2011	my ($self, $rmp) = @_;
		2012
		2013	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2014
		2015	$self->_create_random_map ($rmp);
		2016	}
		2017
		2018	=item cf::map->register ($regex, $prio)
		2019
		2020	Register a handler for the map path matching the given regex at the
		2021	givne priority (higher is better, built-in handlers have priority 0, the
		2022	default).
		2023
		2024	=cut
		2025
		2026	sub register {
		2027	my (undef, $regex, $prio) = @_;
		2028	my $pkg = caller;
		2029
		2030	push @{"$pkg\::ISA"}, __PACKAGE__;
		2031
		2032	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2033	}
		2034
		2035	# also paths starting with '/'
		2036	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2037
		2038	sub thawer_merge {
		2039	my ($self, $merge) = @_;
		2040
		2041	# we have to keep some variables in memory intact
		2042	local $self->{path};
		2043	local $self->{load_path};
		2044
		2045	$self->SUPER::thawer_merge ($merge);
		2046	}
		2047
		2048	sub normalise {
1059	my ($path, $rmp) = @_;	2049	my ($path, $base) = @_;
1060		2050
1061	# mit "rum" bekleckern, nicht	2051	$path = "$path"; # make sure it's a string
1062	cf::map::_create_random_map	2052
		2053	$path =~ s/\.map$//;
		2054
		2055	# map plan:
		2056	#
		2057	# /! non-realised random map exit (special hack!)
		2058	# {... are special paths that are not being touched
		2059	# ?xxx/... are special absolute paths
		2060	# ?random/... random maps
		2061	# /... normal maps
		2062	# ~user/... per-player map of a specific user
		2063
		2064	$path =~ s/$PATH_SEP/\//go;
		2065
		2066	# treat it as relative path if it starts with
		2067	# something that looks reasonable
		2068	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2069	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2070
		2071	$base =~ s{[^/]+/?$}{};
		2072	$path = "$base/$path";
		2073	}
		2074
		2075	for ($path) {
		2076	redo if s{/\.?/}{/};
		2077	redo if s{/[^/]+/\.\./}{/};
		2078	}
		2079
1063	$path,	2080	$path
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})
1075	}	2081	}
1076		2082
1077	# and all this just because we cannot iterate over	2083	sub new_from_path {
1078	# all maps in C++...	2084	my (undef, $path, $base) = @_;
1079	sub change_all_map_light {	2085
		2086	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2087
		2088	$path = normalise $path, $base;
		2089
		2090	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2091	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2092	my $self = bless cf::map::new, $pkg;
		2093	$self->{path} = $path; $self->path ($path);
		2094	$self->init; # pass $1 etc.
		2095	return $self;
		2096	}
		2097	}
		2098
		2099	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2100	()
		2101	}
		2102
		2103	# may re-bless or do other evil things
		2104	sub init {
1080	my ($change) = @_;	2105	my ($self) = @_;
1081		2106
1082	$_->change_map_light ($change) for values %cf::MAP;	2107	$self
1083	}	2108	}
1084		2109
		2110	sub as_string {
		2111	my ($self) = @_;
		2112
		2113	"$self->{path}"
		2114	}
		2115
		2116	# the displayed name, this is a one way mapping
		2117	sub visible_name {
		2118	&as_string
		2119	}
		2120
		2121	# the original (read-only) location
		2122	sub load_path {
		2123	my ($self) = @_;
		2124
		2125	"$MAPDIR/$self->{path}.map"
		2126	}
		2127
		2128	# the temporary/swap location
		2129	sub save_path {
		2130	my ($self) = @_;
		2131
		2132	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2133	"$TMPDIR/$path.map"
		2134	}
		2135
		2136	# the unique path, undef == no special unique path
		2137	sub uniq_path {
		2138	my ($self) = @_;
		2139
		2140	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2141	"$UNIQUEDIR/$path"
		2142	}
		2143
		2144	sub decay_objects {
		2145	my ($self) = @_;
		2146
		2147	return if $self->{deny_reset};
		2148
		2149	$self->do_decay_objects;
		2150	}
		2151
		2152	sub unlink_save {
		2153	my ($self) = @_;
		2154
		2155	utf8::encode (my $save = $self->save_path);
		2156	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2158	}
		2159
1085	sub try_load_header($) {	2160	sub load_header_from($) {
1086	my ($path) = @_;	2161	my ($self, $path) = @_;
1087		2162
1088	utf8::encode $path;	2163	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2164	my $f = new_from_file cf::object::thawer $path
1090	or return;	2165	or return;
1091		2166
1092	my $map = cf::map::new	2167	$self->_load_header ($f)
1093	or return;	2168	or return;
1094		2169
1095	$map->load_header ($path)	2170	local $MAP_LOADING{$self->{path}} = $self;
		2171	$f->resolve_delayed_derefs;
		2172
		2173	$self->{load_path} = $path;
		2174
		2175	1
		2176	}
		2177
		2178	# used to laod the header of an original map
		2179	sub load_header_orig {
		2180	my ($self) = @_;
		2181
		2182	$self->load_header_from ($self->load_path)
		2183	}
		2184
		2185	# used to laod the header of an instantiated map
		2186	sub load_header_temp {
		2187	my ($self) = @_;
		2188
		2189	$self->load_header_from ($self->save_path)
		2190	}
		2191
		2192	# called after loading the header from an instantiated map
		2193	sub prepare_temp {
		2194	my ($self) = @_;
		2195
		2196	$self->last_access ((delete $self->{last_access})
		2197	|| $cf::RUNTIME); #d#
		2198	# safety
		2199	$self->{instantiate_time} = $cf::RUNTIME
		2200	if $self->{instantiate_time} > $cf::RUNTIME;
		2201	}
		2202
		2203	# called after loading the header from an original map
		2204	sub prepare_orig {
		2205	my ($self) = @_;
		2206
		2207	$self->{load_original} = 1;
		2208	$self->{instantiate_time} = $cf::RUNTIME;
		2209	$self->last_access ($cf::RUNTIME);
		2210	$self->instantiate;
		2211	}
		2212
		2213	sub load_header {
		2214	my ($self) = @_;
		2215
		2216	if ($self->load_header_temp) {
		2217	$self->prepare_temp;
		2218	} else {
		2219	$self->load_header_orig
1096	or return;	2220	or return;
		2221	$self->prepare_orig;
		2222	}
1097		2223
1098	$map->{load_path} = $path;	2224	$self->{deny_reset} = 1
		2225	if $self->no_reset;
1099		2226
1100	$map	2227	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2228	unless $self->default_region;
1102		2229
		2230	1
		2231	}
		2232
		2233	sub find;
1103	sub find_map {	2234	sub find {
1104	my ($path, $origin) = @_;	2235	my ($path, $origin) = @_;
1105		2236
1106	#warn "find_map<$path,$origin>\n";#d#	2237	cf::cede_to_tick;
1107		2238
1108	$path = new cf::path $path, $origin && $origin->path;	2239	$path = normalise $path, $origin;
1109	my $key = $path->as_string;
1110		2240
		2241	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2242	my $guard2 = cf::lock_acquire "map_find:$path";
		2243
1111	$cf::MAP{$key} || do {	2244	$cf::MAP{$path} || do {
1112	# do it the slow way	2245	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2246	or return;
1127		2247
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2248	$map->{last_save} = $cf::RUNTIME;
1139		2249
1140	if ($map->should_reset) {	2250	$map->load_header
		2251	or return;
		2252
		2253	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2254	# doing this can freeze the server in a sync job, obviously
		2255	#$cf::WAIT_FOR_TICK->wait;
		2256	undef $guard2;
		2257	undef $guard1;
1141	$map->reset;	2258	$map->reset;
1142	$map = find_map $path;	2259	return find $path;
1143	}	2260	}
1144		2261
1145	$cf::MAP{$key} = $map	2262	$cf::MAP{$path} = $map
1146	}	2263	}
1147	}	2264	}
		2265
		2266	sub pre_load { }
		2267	#sub post_load { } # XS
1148		2268
1149	sub load {	2269	sub load {
1150	my ($self) = @_;	2270	my ($self) = @_;
1151		2271
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2272	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2273
1156	my $path = $self->{path};	2274	my $path = $self->{path};
1157		2275
		2276	{
		2277	my $guard = cf::lock_acquire "map_data:$path";
		2278
		2279	return unless $self->valid;
		2280	return unless $self->state == cf::MAP_SWAPPED;
		2281
1158	$self->alloc;	2282	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2283
		2284	$self->pre_load;
		2285	cf::cede_to_tick;
		2286
		2287	if (exists $self->{load_path}) {
		2288	my $f = new_from_file cf::object::thawer $self->{load_path};
		2289	$f->skip_block;
		2290	$self->_load_objects ($f)
1160	or return;	2291	or return;
1161		2292
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2293	$self->post_load_original
1163	if delete $self->{load_original};	2294	if delete $self->{load_original};
1164		2295
1165	if (my $uniq = $path->uniq_path) {	2296	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2297	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2298	unless (aio_stat $uniq) {
		2299	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2300	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2301	$self->_load_objects ($f);
		2302	$f->resolve_delayed_derefs;
		2303	}
		2304	}
1170	}	2305	}
1171	}
1172		2306
		2307	$f->resolve_delayed_derefs;
		2308	} else {
		2309	$self->post_load_original
		2310	if delete $self->{load_original};
		2311	}
		2312
		2313	$self->state (cf::MAP_INACTIVE);
		2314
		2315	cf::cede_to_tick;
1173	# now do the right thing for maps	2316	# now do the right thing for maps
1174	$self->link_multipart_objects;	2317	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2318	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2319	unless $self->difficulty;
1186	$self->activate;	2320	cf::cede_to_tick;
		2321
		2322	unless ($self->{deny_activate}) {
		2323	$self->decay_objects;
		2324	$self->fix_auto_apply;
		2325	$self->update_buttons;
		2326	cf::cede_to_tick;
		2327	#$self->activate; # no longer activate maps automatically
		2328	}
		2329
		2330	$self->{last_save} = $cf::RUNTIME;
		2331	$self->last_access ($cf::RUNTIME);
		2332	}
		2333
		2334	$self->post_load;
		2335
1187	}	2336	1
1188
1189	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2337	}
1191		2338
1192	sub load_map_sync {	2339	# customize the map for a given player, i.e.
		2340	# return the _real_ map. used by e.g. per-player
		2341	# maps to change the path to ~playername/mappath
		2342	sub customise_for {
		2343	my ($self, $ob) = @_;
		2344
		2345	return find "~" . $ob->name . "/" . $self->{path}
		2346	if $self->per_player;
		2347
		2348	# return find "?party/" . $ob->name . "/" . $self->{path}
		2349	# if $self->per_party;
		2350
		2351	$self
		2352	}
		2353
		2354	sub find_sync {
1193	my ($path, $origin) = @_;	2355	my ($path, $origin) = @_;
1194		2356
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2357	# it's a bug to call this from the main context
		2358	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2359	if $Coro::current == $Coro::main;
1196		2360
1197	cf::sync_job {	2361	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2362	}
1199	or return;	2363
		2364	sub do_load_sync {
		2365	my ($map) = @_;
		2366
		2367	# it's a bug to call this from the main context
		2368	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2369	if $Coro::current == $Coro::main;
		2370
1200	$map->load;	2371	$map->load;
1201	$map	2372	}
		2373
		2374	our %MAP_PREFETCH;
		2375	our $MAP_PREFETCHER = undef;
		2376
		2377	sub find_async {
		2378	my ($path, $origin, $load) = @_;
		2379
		2380	$path = normalise $path, $origin;
		2381
		2382	if (my $map = $cf::MAP{$path}) {
		2383	return $map if !$load || $map->linkable;
		2384	}
		2385
		2386	$MAP_PREFETCH{$path} |= $load;
		2387
		2388	$MAP_PREFETCHER ||= cf::async {
		2389	$Coro::current->{desc} = "map prefetcher";
		2390
		2391	while (%MAP_PREFETCH) {
		2392	while (my ($k, $v) = each %MAP_PREFETCH) {
		2393	if (my $map = find $k) {
		2394	$map->load if $v;
		2395	}
		2396
		2397	delete $MAP_PREFETCH{$k};
		2398	}
		2399	}
		2400	undef $MAP_PREFETCHER;
		2401	};
		2402	$MAP_PREFETCHER->prio (6);
		2403
		2404	()
		2405	}
		2406
		2407	# common code, used by both ->save and ->swapout
		2408	sub _save {
		2409	my ($self) = @_;
		2410
		2411	$self->{last_save} = $cf::RUNTIME;
		2412
		2413	return unless $self->dirty;
		2414
		2415	my $save = $self->save_path; utf8::encode $save;
		2416	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2417
		2418	$self->{load_path} = $save;
		2419
		2420	return if $self->{deny_save};
		2421
		2422	local $self->{last_access} = $self->last_access;#d#
		2423
		2424	cf::async {
		2425	$Coro::current->{desc} = "map player save";
		2426	$_->contr->save for $self->players;
		2427	};
		2428
		2429	cf::get_slot 0.02;
		2430
		2431	if ($uniq) {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2433	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2434	} else {
		2435	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2436	}
1203	}	2437	}
1204		2438
1205	sub save {	2439	sub save {
1206	my ($self) = @_;	2440	my ($self) = @_;
1207		2441
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2442	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2443
1211	$self->{last_save} = $cf::RUNTIME;	2444	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2445	}
1226		2446
1227	sub swap_out {	2447	sub swap_out {
1228	my ($self) = @_;	2448	my ($self) = @_;
1229		2449
		2450	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2451
		2452	return if !$self->linkable;
		2453	return if $self->{deny_save};
1230	return if $self->players;	2454	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2455
		2456	# first deactivate the map and "unlink" it from the core
		2457	$self->deactivate;
		2458	$_->clear_links_to ($self) for values %cf::MAP;
		2459	$self->state (cf::MAP_SWAPPED);
		2460
		2461	# then atomically save
1234	$self->save;	2462	$self->_save;
		2463
		2464	# then free the map
1235	$self->clear;	2465	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2466	}
1238		2467
1239	sub reset_at {	2468	sub reset_at {
1240	my ($self) = @_;	2469	my ($self) = @_;
1241		2470
1242	# TODO: safety, remove and allow resettable per-player maps	2471	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2472	return 1e99 if $self->{deny_reset};
1245		2473
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2474	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2475	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2476
1250	$time + $to	2477	$time + $to
1251	}	2478	}
1252		2479
1253	sub should_reset {	2480	sub should_reset {
1254	my ($self) = @_;	2481	my ($self) = @_;
1255		2482
1256	$self->reset_at <= $cf::RUNTIME	2483	$self->reset_at <= $cf::RUNTIME
1257	}	2484	}
1258		2485
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2486	sub reset {
1281	my ($self) = @_;	2487	my ($self) = @_;
1282		2488
		2489	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2490
1283	return if $self->players;	2491	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2492
1286	warn "resetting map ", $self->path;#d#	2493	cf::trace "resetting map ", $self->path, "\n";
		2494
		2495	$self->state (cf::MAP_SWAPPED);
		2496
		2497	# need to save uniques path
		2498	unless ($self->{deny_save}) {
		2499	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2500
		2501	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2502	if $uniq;
		2503	}
1287		2504
1288	delete $cf::MAP{$self->path};	2505	delete $cf::MAP{$self->path};
1289		2506
		2507	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2508	$_->clear_links_to ($self) for values %cf::MAP;
		2509	$self->clear;
1291		2510
1292	$self->unlink_save;	2511	$self->unlink_save;
1293	$self->destroy;	2512	$self->destroy;
1294	}	2513	}
1295		2514
1296	sub customise_for {	2515	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2516
1299	if ($map->per_player) {	2517	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2518	my ($self) = @_;
		2519
1301	}	2520	{
		2521	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2522
1303	$map	2523	delete $cf::MAP{$self->path};
1304	}
1305		2524
1306	sub emergency_save {	2525	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2526
1309	warn "enter emergency map save\n";	2527	bless $self, "cf::map::wrap";
		2528	delete $self->{deny_reset};
		2529	$self->{deny_save} = 1;
		2530	$self->reset_timeout (1);
		2531	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2532
1311	cf::sync_job {	2533	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2534	}
1315		2535
1316	warn "end emergency map save\n";	2536	$self->reset; # polite request, might not happen
		2537	}
		2538
		2539	=item $maps = cf::map::tmp_maps
		2540
		2541	Returns an arrayref with all map paths of currently instantiated and saved
		2542	maps. May block.
		2543
		2544	=cut
		2545
		2546	sub tmp_maps() {
		2547	[
		2548	map {
		2549	utf8::decode $_;
		2550	/\.map$/
		2551	? normalise $_
		2552	: ()
		2553	} @{ aio_readdir $TMPDIR or [] }
		2554	]
		2555	}
		2556
		2557	=item $maps = cf::map::random_maps
		2558
		2559	Returns an arrayref with all map paths of currently instantiated and saved
		2560	random maps. May block.
		2561
		2562	=cut
		2563
		2564	sub random_maps() {
		2565	[
		2566	map {
		2567	utf8::decode $_;
		2568	/\.map$/
		2569	? normalise "?random/$_"
		2570	: ()
		2571	} @{ aio_readdir $RANDOMDIR or [] }
		2572	]
		2573	}
		2574
		2575	=item cf::map::unique_maps
		2576
		2577	Returns an arrayref of paths of all shared maps that have
		2578	instantiated unique items. May block.
		2579
		2580	=cut
		2581
		2582	sub unique_maps() {
		2583	[
		2584	map {
		2585	utf8::decode $_;
		2586	s/\.map$//; # TODO future compatibility hack
		2587	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2588	? ()
		2589	: normalise $_
		2590	} @{ aio_readdir $UNIQUEDIR or [] }
		2591	]
		2592	}
		2593
		2594	=item cf::map::static_maps
		2595
		2596	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2597	file in the shared directory excluding F</styles> and F</editor>). May
		2598	block.
		2599
		2600	=cut
		2601
		2602	sub static_maps() {
		2603	my @dirs = "";
		2604	my @maps;
		2605
		2606	while (@dirs) {
		2607	my $dir = shift @dirs;
		2608
		2609	next if $dir eq "/styles" || $dir eq "/editor";
		2610
		2611	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2612	or return;
		2613
		2614	for (@$files) {
		2615	s/\.map$// or next;
		2616	utf8::decode $_;
		2617	push @maps, "$dir/$_";
		2618	}
		2619
		2620	push @dirs, map "$dir/$_", @$dirs;
		2621	}
		2622
		2623	\@maps
		2624	}
		2625
		2626	=back
		2627
		2628	=head3 cf::object
		2629
		2630	=cut
		2631
		2632	package cf::object;
		2633
		2634	=over 4
		2635
		2636	=item $ob->inv_recursive
		2637
		2638	Returns the inventory of the object I<and> their inventories, recursively,
		2639	but I<not> the object itself.
		2640
		2641	=cut
		2642
		2643	sub inv_recursive_;
		2644	sub inv_recursive_ {
		2645	map { $_, inv_recursive_ $_->inv } @_
		2646	}
		2647
		2648	sub inv_recursive {
		2649	inv_recursive_ inv $_[0]
		2650	}
		2651
		2652	=item $ref = $ob->ref
		2653
		2654	Creates and returns a persistent reference to an object that can be stored as a string.
		2655
		2656	=item $ob = cf::object::deref ($refstring)
		2657
		2658	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2659	even if the object actually exists. May block.
		2660
		2661	=cut
		2662
		2663	sub deref {
		2664	my ($ref) = @_;
		2665
		2666	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2667	my ($uuid, $name) = ($1, $2);
		2668	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2669	or return;
		2670	$pl->ob->uuid eq $uuid
		2671	or return;
		2672
		2673	$pl->ob
		2674	} else {
		2675	warn "$ref: cannot resolve object reference\n";
		2676	undef
		2677	}
1317	}	2678	}
1318		2679
1319	package cf;	2680	package cf;
1320		2681
1321	=back	2682	=back
1322
1323		2683
1324	=head3 cf::object::player	2684	=head3 cf::object::player
1325		2685
1326	=over 4	2686	=over 4
1327		2687
…		…
1330	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2690	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1331	can be C<undef>. Does the right thing when the player is currently in a	2691	can be C<undef>. Does the right thing when the player is currently in a
1332	dialogue with the given NPC character.	2692	dialogue with the given NPC character.
1333		2693
1334	=cut	2694	=cut
		2695
		2696	our $SAY_CHANNEL = {
		2697	id => "say",
		2698	title => "Map",
		2699	reply => "say ",
		2700	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2701	};
		2702
		2703	our $CHAT_CHANNEL = {
		2704	id => "chat",
		2705	title => "Chat",
		2706	reply => "chat ",
		2707	tooltip => "Player chat and shouts, global to the server.",
		2708	};
1335		2709
1336	# rough implementation of a future "reply" method that works	2710	# rough implementation of a future "reply" method that works
1337	# with dialog boxes.	2711	# with dialog boxes.
1338	#TODO: the first argument must go, split into a $npc->reply_to ( method	2712	#TODO: the first argument must go, split into a $npc->reply_to ( method
1339	sub cf::object::player::reply($$$;$) {	2713	sub cf::object::player::reply($$$;$) {
…		…
1341		2715
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2716	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2717
1344	if ($self->{record_replies}) {	2718	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2719	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2720
1346	} else {	2721	} else {
		2722	my $pl = $self->contr;
		2723
		2724	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2725	my $dialog = $pl->{npc_dialog};
		2726	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2727
		2728	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2729	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2730	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2731	}
1349	}	2732	}
		2733	}
		2734
		2735	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2736
		2737	=cut
		2738
		2739	sub cf::object::send_msg {
		2740	my $pl = shift->contr
		2741	or return;
		2742	$pl->send_msg (@_);
1350	}	2743	}
1351		2744
1352	=item $player_object->may ("access")	2745	=item $player_object->may ("access")
1353		2746
1354	Returns wether the given player is authorized to access resource "access"	2747	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2756	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2757	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2758	: $cf::CFG{"may_$access"})
1366	}	2759	}
1367		2760
		2761	=item $player_object->enter_link
		2762
		2763	Freezes the player and moves him/her to a special map (C<{link}>).
		2764
		2765	The player should be reasonably safe there for short amounts of time (e.g.
		2766	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2767	though, as the player cannot control the character while it is on the link
		2768	map.
		2769
		2770	Will never block.
		2771
		2772	=item $player_object->leave_link ($map, $x, $y)
		2773
		2774	Moves the player out of the special C<{link}> map onto the specified
		2775	map. If the map is not valid (or omitted), the player will be moved back
		2776	to the location he/she was before the call to C<enter_link>, or, if that
		2777	fails, to the emergency map position.
		2778
		2779	Might block.
		2780
		2781	=cut
		2782
		2783	sub link_map {
		2784	unless ($LINK_MAP) {
		2785	$LINK_MAP = cf::map::find "{link}"
		2786	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2787	$LINK_MAP->load;
		2788	}
		2789
		2790	$LINK_MAP
		2791	}
		2792
1368	sub cf::object::player::enter_link {	2793	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2794	my ($self) = @_;
1370		2795
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2796	$self->deactivate_recursive;
		2797
		2798	++$self->{_link_recursion};
		2799
		2800	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2801
		2802	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2803	if $self->map && $self->map->{path} ne "{link}";
		2804
		2805	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1378	}	2806	}
1379		2807
1380	sub cf::object::player::leave_link {	2808	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2809	my ($self, $map, $x, $y) = @_;
1382		2810
		2811	return unless $self->contr->active;
		2812
1383	my $link_pos = delete $self->{_link_pos};	2813	my $link_pos = delete $self->{_link_pos};
1384		2814
1385	unless ($map) {	2815	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2816	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2817	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2818	$map = cf::map::find $map;
1391		2819
1392	unless ($map) {	2820	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2821	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2822	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2823	or die "FATAL: cannot load emergency map\n";
1396	}	2824	}
1397	}	2825	}
1398		2826
1399	($x, $y) = (-1, -1)	2827	($x, $y) = (-1, -1)
1400	unless (defined $x) && (defined $y);	2828	unless (defined $x) && (defined $y);
1401		2829
1402	# use -1 or undef as default coordinates, not 0, 0	2830	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2831	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2832	if $x <= 0 && $y <= 0;
1405		2833
1406	$map->load;	2834	$map->load;
1407		2835
		2836	return unless $self->contr->active;
		2837
		2838	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2839	if ($self->enter_map ($map, $x, $y)) {
		2840	# entering was successful
		2841	delete $self->{_link_recursion};
		2842	# only activate afterwards, to support waiting in hooks
1408	$self->activate_recursive;	2843	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	2844	}
1410	}
1411		2845
1412	=item $player_object->goto_map ($map, $x, $y)	2846	}
1413		2847
1414	=cut	2848	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1415		2849
		2850	Moves the player to the given map-path and coordinates by first freezing
		2851	her, loading and preparing them map, calling the provided $check callback
		2852	that has to return the map if sucecssful, and then unfreezes the player on
		2853	the new (success) or old (failed) map position. In either case, $done will
		2854	be called at the end of this process.
		2855
		2856	Note that $check will be called with a potentially non-loaded map, so if
		2857	it needs a loaded map it has to call C<< ->load >>.
		2858
		2859	=cut
		2860
		2861	our $GOTOGEN;
		2862
1416	sub cf::object::player::goto_map {	2863	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2864	my ($self, $path, $x, $y, $check, $done) = @_;
		2865
		2866	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2867	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2868	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2869	($path, $x, $y) = @$EMERGENCY_POSITION;
		2870	}
		2871
		2872	# do generation counting so two concurrent goto's will be executed in-order
		2873	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2874
1419	$self->enter_link;	2875	$self->enter_link;
1420		2876
1421	(Coro::async {	2877	(async {
1422	$path = new cf::path $path;	2878	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2879
1424	my $map = cf::map::find_map $path->as_string;	2880	# *tag paths override both path and x|y
		2881	if ($path =~ /^\*(.*)$/) {
		2882	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2883	my $ob = $obs[rand @obs];
		2884
		2885	# see if we actually can go there
		2886	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2887	$ob = $obs[rand @obs];
		2888	} else {
		2889	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	}
		2891	# else put us there anyways for now #d#
		2892
		2893	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2894	} else {
		2895	($path, $x, $y) = (undef, undef, undef);
		2896	}
		2897	}
		2898
		2899	my $map = eval {
		2900	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2901
		2902	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2903	$map = $map->customise_for ($self);
		2904	$map = $check->($map, $x, $y, $self) if $check && $map;
		2905	} else {
		2906	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2907	}
1426		2908
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2909	$map
		2910	};
1429		2911
		2912	if ($@) {
		2913	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2914	LOG llevError | logBacktrace, Carp::longmess $@;
		2915	}
		2916
		2917	if ($gen == $self->{_goto_generation}) {
		2918	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2919	$self->leave_link ($map, $x, $y);
		2920	}
		2921
		2922	$done->($self) if $done;
1431	})->prio (1);	2923	})->prio (1);
1432	}	2924	}
1433		2925
1434	=item $player_object->enter_exit ($exit_object)	2926	=item $player_object->enter_exit ($exit_object)
1435		2927
…		…
1437		2929
1438	sub parse_random_map_params {	2930	sub parse_random_map_params {
1439	my ($spec) = @_;	2931	my ($spec) = @_;
1440		2932
1441	my $rmp = { # defaults	2933	my $rmp = { # defaults
1442	xsize => 10,	2934	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2935	ysize => (cf::rndm 15, 40),
		2936	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2937	#layout => string,
1444	};	2938	};
1445		2939
1446	for (split /\n/, $spec) {	2940	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2941	my ($k, $v) = split /\s+/, $_, 2;
1448		2942
…		…
1460	# that depends on the exit object	2954	# that depends on the exit object
1461		2955
1462	my $rmp = parse_random_map_params $exit->msg;	2956	my $rmp = parse_random_map_params $exit->msg;
1463		2957
1464	if ($exit->map) {	2958	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2959	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2960	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2961	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2962	$rmp->{origin_y} = $exit->y;
		2963
		2964	$exit->map->touch;
1469	}	2965	}
1470		2966
1471	$rmp->{random_seed} ||= $exit->random_seed;	2967	$rmp->{random_seed} ||= $exit->random_seed;
1472		2968
1473	my $data = cf::to_json $rmp;	2969	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1474	my $md5 = Digest::MD5::md5_hex $data;	2970	my $md5 = Digest::MD5::md5_hex $data;
		2971	my $meta = "$RANDOMDIR/$md5.meta";
1475		2972
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2973	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2974	aio_write $fh, 0, (length $data), $data, 0;
		2975	undef $fh;
		2976	aio_rename "$meta~", $meta;
1478		2977
		2978	my $slaying = "?random/$md5";
		2979
		2980	if ($exit->valid) {
1479	$exit->slaying ("?random/$md5");	2981	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2982	$exit->msg (undef);
		2983	}
1481	}	2984	}
1482	}	2985	}
1483		2986
1484	sub cf::object::player::enter_exit {	2987	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2988	my ($self, $exit) = @_;
1486		2989
1487	return unless $self->type == cf::PLAYER;	2990	return unless $self->type == cf::PLAYER;
1488		2991
1489	$self->enter_link;	2992	$self->enter_link;
1490		2993
1491	(Coro::async {	2994	(async {
		2995	$Coro::current->{desc} = "enter_exit";
		2996
1492	unless (eval {	2997	unless (eval {
		2998	$self->deactivate_recursive; # just to be sure
1493		2999
		3000	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3001	my $x = $exit->stats->hp;
		3002	my $y = $exit->stats->sp;
		3003
		3004	# special map handling
		3005	my $slaying = $exit->slaying;
		3006
		3007	# special map handling
		3008	if ($slaying eq "/!") {
		3009	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3010
1494	prepare_random_map $exit	3011	prepare_random_map $exit
		3012	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3013
1495	if $exit->slaying eq "/!";	3014	$map = $exit->slaying;
1496		3015
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3016	} elsif ($slaying eq '!up') {
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	3017	$map = $exit->map->tile_path (cf::TILE_UP);
		3018	$x = $exit->x;
		3019	$y = $exit->y;
1499		3020
		3021	} elsif ($slaying eq '!down') {
		3022	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3023	$x = $exit->x;
		3024	$y = $exit->y;
		3025	}
		3026
		3027	$self->goto ($map, $x, $y);
		3028
		3029	# if exit is damned, update players death & WoR home-position
		3030	$self->contr->savebed ($map, $x, $y)
		3031	if $exit->flag (cf::FLAG_DAMNED);
		3032
1500	1;	3033	1
1501	}) {	3034	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	3035	$self->message ("Something went wrong deep within the deliantra server. "
1503	. "I'll try to bring you back to the map you were before. "	3036	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	3037	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	3038	cf::NDI_UNIQUE | cf::NDI_RED);
1506		3039
1507	warn "ERROR in enter_exit: $@";	3040	error "ERROR in enter_exit: $@";
1508	$self->leave_link;	3041	$self->leave_link;
1509	}	3042	}
1510	})->prio (1);	3043	})->prio (1);
1511	}	3044	}
1512		3045
…		…
1523		3056
1524	sub cf::client::send_drawinfo {	3057	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	3058	my ($self, $text, $flags) = @_;
1526		3059
1527	utf8::encode $text;	3060	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3061	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	3062	}
1530		3063
		3064	=item $client->send_big_packet ($pkt)
		3065
		3066	Like C<send_packet>, but tries to compress large packets, and fragments
		3067	them as required.
		3068
		3069	=cut
		3070
		3071	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3072
		3073	sub cf::client::send_big_packet {
		3074	my ($self, $pkt) = @_;
		3075
		3076	# try lzf for large packets
		3077	$pkt = "lzf " . Compress::LZF::compress $pkt
		3078	if 1024 <= length $pkt and $self->{can_lzf};
		3079
		3080	# split very large packets
		3081	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3082	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3083	$pkt = "frag";
		3084	}
		3085
		3086	$self->send_packet ($pkt);
		3087	}
		3088
		3089	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3090
		3091	Send a drawinfo or msg packet to the client, formatting the msg for the
		3092	client if neccessary. C<$type> should be a string identifying the type of
		3093	the message, with C<log> being the default. If C<$color> is negative, suppress
		3094	the message unless the client supports the msg packet.
		3095
		3096	=cut
		3097
		3098	# non-persistent channels (usually the info channel)
		3099	our %CHANNEL = (
		3100	"c/motd" => {
		3101	id => "infobox",
		3102	title => "MOTD",
		3103	reply => undef,
		3104	tooltip => "The message of the day",
		3105	},
		3106	"c/identify" => {
		3107	id => "infobox",
		3108	title => "Identify",
		3109	reply => undef,
		3110	tooltip => "Items recently identified",
		3111	},
		3112	"c/examine" => {
		3113	id => "infobox",
		3114	title => "Examine",
		3115	reply => undef,
		3116	tooltip => "Signs and other items you examined",
		3117	},
		3118	"c/shopinfo" => {
		3119	id => "infobox",
		3120	title => "Shop Info",
		3121	reply => undef,
		3122	tooltip => "What your bargaining skill tells you about the shop",
		3123	},
		3124	"c/book" => {
		3125	id => "infobox",
		3126	title => "Book",
		3127	reply => undef,
		3128	tooltip => "The contents of a note or book",
		3129	},
		3130	"c/lookat" => {
		3131	id => "infobox",
		3132	title => "Look",
		3133	reply => undef,
		3134	tooltip => "What you saw there",
		3135	},
		3136	"c/who" => {
		3137	id => "infobox",
		3138	title => "Players",
		3139	reply => undef,
		3140	tooltip => "Shows players who are currently online",
		3141	},
		3142	"c/body" => {
		3143	id => "infobox",
		3144	title => "Body Parts",
		3145	reply => undef,
		3146	tooltip => "Shows which body parts you posess and are available",
		3147	},
		3148	"c/statistics" => {
		3149	id => "infobox",
		3150	title => "Statistics",
		3151	reply => undef,
		3152	tooltip => "Shows your primary statistics",
		3153	},
		3154	"c/skills" => {
		3155	id => "infobox",
		3156	title => "Skills",
		3157	reply => undef,
		3158	tooltip => "Shows your experience per skill and item power",
		3159	},
		3160	"c/shopitems" => {
		3161	id => "infobox",
		3162	title => "Shop Items",
		3163	reply => undef,
		3164	tooltip => "Shows the items currently for sale in this shop",
		3165	},
		3166	"c/resistances" => {
		3167	id => "infobox",
		3168	title => "Resistances",
		3169	reply => undef,
		3170	tooltip => "Shows your resistances",
		3171	},
		3172	"c/pets" => {
		3173	id => "infobox",
		3174	title => "Pets",
		3175	reply => undef,
		3176	tooltip => "Shows information abotu your pets/a specific pet",
		3177	},
		3178	"c/perceiveself" => {
		3179	id => "infobox",
		3180	title => "Perceive Self",
		3181	reply => undef,
		3182	tooltip => "You gained detailed knowledge about yourself",
		3183	},
		3184	"c/uptime" => {
		3185	id => "infobox",
		3186	title => "Uptime",
		3187	reply => undef,
		3188	tooltip => "How long the server has been running since last restart",
		3189	},
		3190	"c/mapinfo" => {
		3191	id => "infobox",
		3192	title => "Map Info",
		3193	reply => undef,
		3194	tooltip => "Information related to the maps",
		3195	},
		3196	"c/party" => {
		3197	id => "party",
		3198	title => "Party",
		3199	reply => "gsay ",
		3200	tooltip => "Messages and chat related to your party",
		3201	},
		3202	"c/death" => {
		3203	id => "death",
		3204	title => "Death",
		3205	reply => undef,
		3206	tooltip => "Reason for and more info about your most recent death",
		3207	},
		3208	"c/say" => $SAY_CHANNEL,
		3209	"c/chat" => $CHAT_CHANNEL,
		3210	);
		3211
		3212	sub cf::client::send_msg {
		3213	my ($self, $channel, $msg, $color, @extra) = @_;
		3214
		3215	$msg = $self->pl->expand_cfpod ($msg)
		3216	unless $color & cf::NDI_VERBATIM;
		3217
		3218	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3219
		3220	# check predefined channels, for the benefit of C
		3221	if ($CHANNEL{$channel}) {
		3222	$channel = $CHANNEL{$channel};
		3223
		3224	$self->ext_msg (channel_info => $channel);
		3225	$channel = $channel->{id};
		3226
		3227	} elsif (ref $channel) {
		3228	# send meta info to client, if not yet sent
		3229	unless (exists $self->{channel}{$channel->{id}}) {
		3230	$self->{channel}{$channel->{id}} = $channel;
		3231	$self->ext_msg (channel_info => $channel);
		3232	}
		3233
		3234	$channel = $channel->{id};
		3235	}
		3236
		3237	return unless @extra || length $msg;
		3238
		3239	# default colour, mask it out
		3240	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3241	if $color & cf::NDI_DEF;
		3242
		3243	my $pkt = "msg "
		3244	. $self->{json_coder}->encode (
		3245	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3246	);
		3247
		3248	$self->send_big_packet ($pkt);
		3249	}
		3250
		3251	=item $client->ext_msg ($type, @msg)
		3252
		3253	Sends an ext event to the client.
		3254
		3255	=cut
		3256
		3257	sub cf::client::ext_msg($$@) {
		3258	my ($self, $type, @msg) = @_;
		3259
		3260	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3261	}
1531		3262
1532	=item $success = $client->query ($flags, "text", \&cb)	3263	=item $success = $client->query ($flags, "text", \&cb)
1533		3264
1534	Queues a query to the client, calling the given callback with	3265	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3266	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3267	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		3268
1538	Queries can fail, so check the return code. Or don't, as queries will become	3269	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	3270	become reliable at some point in the future.
1540		3271
1541	=cut	3272	=cut
1542		3273
1543	sub cf::client::query {	3274	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	3275	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	3283	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3284	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		3285
1555	$self->send_packet ($self->{query_queue}[0][0])	3286	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	3287	if @{ $self->{query_queue} } == 1;
		3288
		3289	1
1557	}	3290	}
1558		3291
1559	cf::client->attach (	3292	cf::client->attach (
		3293	on_connect => sub {
		3294	my ($ns) = @_;
		3295
		3296	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3297	},
1560	on_reply => sub {	3298	on_reply => sub {
1561	my ($ns, $msg) = @_;	3299	my ($ns, $msg) = @_;
1562		3300
1563	# this weird shuffling is so that direct followup queries	3301	# this weird shuffling is so that direct followup queries
1564	# get handled first	3302	# get handled first
1565	my $queue = delete $ns->{query_queue};	3303	my $queue = delete $ns->{query_queue}
		3304	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		3305
1567	(shift @$queue)->[1]->($msg);	3306	(shift @$queue)->[1]->($msg);
		3307	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		3308
1569	push @{ $ns->{query_queue} }, @$queue;	3309	push @{ $ns->{query_queue} }, @$queue;
1570		3310
1571	if (@{ $ns->{query_queue} } == @$queue) {	3311	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	3312	if (@$queue) {
…		…
1574	} else {	3314	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3315	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	3316	}
1577	}	3317	}
1578	},	3318	},
		3319	on_exticmd => sub {
		3320	my ($ns, $buf) = @_;
		3321
		3322	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3323
		3324	if (ref $msg) {
		3325	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3326
		3327	if (my $cb = $EXTIACMD{$type}) {
		3328	$cb->(
		3329	$ns,
		3330	sub {
		3331	$ns->ext_msg ("reply-$reply", @_)
		3332	if $reply;
		3333	},
		3334	@payload
		3335	);
		3336	} else {
		3337	my @reply;
		3338
		3339	if (my $cb = $EXTICMD{$type}) {
		3340	@reply = $cb->($ns, @payload);
		3341	}
		3342
		3343	$ns->ext_msg ("reply-$reply", @reply)
		3344	if $reply;
		3345	}
		3346	} else {
		3347	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3348	}
		3349
		3350	cf::override;
		3351	},
1579	);	3352	);
1580		3353
1581	=item $client->coro (\&cb)	3354	=item $client->async (\&cb)
1582		3355
1583	Create a new coroutine, running the specified callback. The coroutine will	3356	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	3357	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	3358	or loss of connection).
1586		3359
1587	=cut	3360	=cut
1588		3361
1589	sub cf::client::coro {	3362	sub cf::client::async {
1590	my ($self, $cb) = @_;	3363	my ($self, $cb) = @_;
1591		3364
1592	my $coro; $coro = async {	3365	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		3366
1599	$coro->on_destroy (sub {	3367	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	3368	delete $self->{_coro}{$coro+0};
1601	});	3369	});
1602		3370
…		…
1604		3372
1605	$coro	3373	$coro
1606	}	3374	}
1607		3375
1608	cf::client->attach (	3376	cf::client->attach (
1609	on_destroy => sub {	3377	on_client_destroy => sub {
1610	my ($ns) = @_;	3378	my ($ns) = @_;
1611		3379
1612	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3380	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1613	},	3381	},
1614	);	3382	);
…		…
1629	our $safe = new Safe "safe";	3397	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	3398	our $safe_hole = new Safe::Hole;
1631		3399
1632	$SIG{FPE} = 'IGNORE';	3400	$SIG{FPE} = 'IGNORE';
1633		3401
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3402	$safe->permit_only (Opcode::opset qw(
		3403	:base_core :base_mem :base_orig :base_math :base_loop
		3404	grepstart grepwhile mapstart mapwhile
		3405	sort time
		3406	));
1635		3407
1636	# here we export the classes and methods available to script code	3408	# here we export the classes and methods available to script code
1637		3409
1638	=pod	3410	=pod
1639		3411
1640	The following fucntions and emthods are available within a safe environment:	3412	The following functions and methods are available within a safe environment:
1641		3413
1642	cf::object contr pay_amount pay_player map	3414	cf::object
		3415	contr pay_amount pay_player map x y force_find force_add destroy
		3416	insert remove name archname title slaying race decrease split
		3417	value
		3418
1643	cf::object::player player	3419	cf::object::player
1644	cf::player peaceful	3420	player
1645	cf::map trigger	3421
		3422	cf::player
		3423	peaceful
		3424
		3425	cf::map
		3426	trigger
1646		3427
1647	=cut	3428	=cut
1648		3429
1649	for (	3430	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3431	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3432	insert remove inv nrof name archname title slaying race
		3433	decrease split destroy change_exp value msg lore send_msg)],
1651	["cf::object::player" => qw(player)],	3434	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3435	["cf::player" => qw(peaceful send_msg)],
1653	["cf::map" => qw(trigger)],	3436	["cf::map" => qw(trigger)],
1654	) {	3437	) {
1655	no strict 'refs';
1656	my ($pkg, @funs) = @$_;	3438	my ($pkg, @funs) = @$_;
1657	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3439	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1658	for @funs;	3440	for @funs;
1659	}	3441	}
1660		3442
…		…
1675		3457
1676	my $qcode = $code;	3458	my $qcode = $code;
1677	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3459	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1678	$qcode =~ s/\n/\\n/g;	3460	$qcode =~ s/\n/\\n/g;
1679		3461
		3462	%vars = (_dummy => 0) unless %vars;
		3463
		3464	my @res;
1680	local $_;	3465	local $_;
1681	local @safe::cf::_safe_eval_args = values %vars;
1682		3466
1683	my $eval =	3467	my $eval =
1684	"do {\n"	3468	"do {\n"
1685	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3469	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1686	. "#line 0 \"{$qcode}\"\n"	3470	. "#line 0 \"{$qcode}\"\n"
1687	. $code	3471	. $code
1688	. "\n}"	3472	. "\n}"
1689	;	3473	;
1690		3474
		3475	if ($CFG{safe_eval}) {
1691	sub_generation_inc;	3476	sub_generation_inc;
		3477	local @safe::cf::_safe_eval_args = values %vars;
1692	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3478	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1693	sub_generation_inc;	3479	sub_generation_inc;
		3480	} else {
		3481	local @cf::_safe_eval_args = values %vars;
		3482	@res = wantarray ? eval eval : scalar eval $eval;
		3483	}
1694		3484
1695	if ($@) {	3485	if ($@) {
1696	warn "$@";	3486	warn "$@",
1697	warn "while executing safe code '$code'\n";	3487	"while executing safe code '$code'\n",
1698	warn "with arguments " . (join " ", %vars) . "\n";	3488	"with arguments " . (join " ", %vars) . "\n";
1699	}	3489	}
1700		3490
1701	wantarray ? @res : $res[0]	3491	wantarray ? @res : $res[0]
1702	}	3492	}
1703		3493
…		…
1717	=cut	3507	=cut
1718		3508
1719	sub register_script_function {	3509	sub register_script_function {
1720	my ($fun, $cb) = @_;	3510	my ($fun, $cb) = @_;
1721		3511
1722	no strict 'refs';	3512	$fun = "safe::$fun" if $CFG{safe_eval};
1723	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3513	*$fun = $safe_hole->wrap ($cb);
1724	}	3514	}
1725		3515
1726	=back	3516	=back
1727		3517
1728	=cut	3518	=cut
1729		3519
1730	#############################################################################	3520	#############################################################################
		3521	# the server's init and main functions
1731		3522
1732	=head2 EXTENSION DATABASE SUPPORT	3523	our %FACEHASH; # hash => idx, #d# HACK for http server
1733		3524
1734	Crossfire maintains a very simple database for extension use. It can	3525	# internal api, not fianlised
1735	currently store anything that can be serialised using Storable, which	3526	sub set_face {
1736	excludes objects.	3527	my ($name, $type, $data) = @_;
1737		3528
1738	The parameter C<$family> should best start with the name of the extension	3529	my $idx = cf::face::find $name;
1739	using it, it should be unique.
1740		3530
1741	=over 4	3531	if ($idx) {
1742		3532	delete $FACEHASH{cf::face::get_chksum $idx};
1743	=item $hashref = cf::db_get $family
1744
1745	Return a hashref for use by the extension C<$family>, which can be
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748
1749	=item $value = cf::db_get $family => $key
1750
1751	Returns a single value from the database
1752
1753	=item cf::db_put $family => $hashref
1754
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});
1806
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {
1813	@_ >= 2
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817
1818	sub db_put($$;$) {
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {	3533	} else {
1822	$DB->{$_[0]} = $_[1];	3534	$idx = cf::face::alloc $name;
1823	}	3535	}
1824	db_dirty;	3536
		3537	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3538
		3539	cf::face::set_type $idx, $type;
		3540	cf::face::set_data $idx, 0, $data, $hash;
		3541	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3542	$FACEHASH{$hash} = $idx;#d#
		3543
		3544	$idx
		3545	}
		3546
		3547	sub load_facedata($) {
		3548	my ($path) = @_;
		3549
		3550	# HACK to clear player env face cache, we need some signal framework
		3551	# for this (global event?)
		3552	%ext::player_env::MUSIC_FACE_CACHE = ();
		3553
		3554	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3555
		3556	trace "loading facedata from $path\n";
		3557
		3558	my $facedata = decode_storable load_file $path;
		3559
		3560	$facedata->{version} == 2
		3561	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3562
		3563	cf::cede_to_tick;
		3564
1825	}	3565	{
		3566	my $faces = delete $facedata->{faceinfo};
1826		3567
1827	cf::global->attach (	3568	for my $face (sort keys %$faces) {
1828	prio => 10000,	3569	my $info = $faces->{$face};
1829	on_cleanup => sub {	3570	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1830	db_sync;	3571
		3572	cf::face::set_visibility $idx, $info->{visibility};
		3573	cf::face::set_magicmap $idx, $info->{magicmap};
		3574	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3575	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3576	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3577	$FACEHASH{$info->{hash64}} = $idx;#d#
		3578
		3579	cf::cede_to_tick;
1831	},	3580	}
		3581
		3582	while (my ($face, $info) = each %$faces) {
		3583	next unless $info->{smooth};
		3584
		3585	my $idx = cf::face::find $face
		3586	or next;
		3587
		3588	if (my $smooth = cf::face::find $info->{smooth}) {
		3589	cf::face::set_smooth $idx, $smooth;
		3590	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3591	} else {
		3592	error "smooth face '$info->{smooth}' not found for face '$face'";
		3593	}
		3594
		3595	cf::cede_to_tick;
		3596	}
		3597	}
		3598
		3599	{
		3600	my $anims = delete $facedata->{animinfo};
		3601
		3602	while (my ($anim, $info) = each %$anims) {
		3603	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3604	cf::cede_to_tick;
		3605	}
		3606
		3607	cf::anim::invalidate_all; # d'oh
		3608	}
		3609
		3610	{
		3611	my $res = delete $facedata->{resource};
		3612
		3613	while (my ($name, $info) = each %$res) {
		3614	if (defined (my $type = $info->{type})) {
		3615	# TODO: different hash - must free and use new index, or cache ixface data queue
		3616	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3617
		3618	cf::face::set_type $idx, $type;
		3619	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3620	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3621	$FACEHASH{$info->{hash}} = $idx;#d#
		3622	} else {
		3623	# $RESOURCE{$name} = $info; # unused
		3624	}
		3625
		3626	cf::cede_to_tick;
		3627	}
		3628	}
		3629
		3630	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3631
		3632	1
		3633	}
		3634
		3635	register_exticmd fx_want => sub {
		3636	my ($ns, $want) = @_;
		3637
		3638	while (my ($k, $v) = each %$want) {
		3639	$ns->fx_want ($k, $v);
		3640	}
		3641	};
		3642
		3643	sub load_resource_file($) {
		3644	my $guard = lock_acquire "load_resource_file";
		3645
		3646	my $status = load_resource_file_ $_[0];
		3647	get_slot 0.1, 100;
		3648	cf::arch::commit_load;
		3649
		3650	$status
		3651	}
		3652
		3653	sub reload_exp_table {
		3654	_reload_exp_table;
		3655
		3656	set_face "res/exp_table" => FT_RSRC,
		3657	JSON::XS->new->utf8->canonical->encode (
		3658	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3659	);
		3660	}
		3661
		3662	sub reload_materials {
		3663	_reload_materials;
		3664	}
		3665
		3666	sub reload_regions {
		3667	# HACK to clear player env face cache, we need some signal framework
		3668	# for this (global event?)
		3669	%ext::player_env::MUSIC_FACE_CACHE = ();
		3670
		3671	load_resource_file "$MAPDIR/regions"
		3672	or die "unable to load regions file\n";
		3673
		3674	for (cf::region::list) {
		3675	$_->{match} = qr/$_->{match}/
		3676	if exists $_->{match};
		3677	}
		3678	}
		3679
		3680	sub reload_facedata {
		3681	load_facedata "$DATADIR/facedata"
		3682	or die "unable to load facedata\n";
		3683	}
		3684
		3685	sub reload_archetypes {
		3686	load_resource_file "$DATADIR/archetypes"
		3687	or die "unable to load archetypes\n";
		3688
		3689	set_face "res/skill_info" => FT_RSRC,
		3690	JSON::XS->new->utf8->canonical->encode (
		3691	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3692	);
		3693	set_face "res/spell_paths" => FT_RSRC,
		3694	JSON::XS->new->utf8->canonical->encode (
		3695	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3696	);
		3697	}
		3698
		3699	sub reload_treasures {
		3700	load_resource_file "$DATADIR/treasures"
		3701	or die "unable to load treasurelists\n";
		3702	}
		3703
		3704	sub reload_sound {
		3705	trace "loading sound config from $DATADIR/sound\n";
		3706
		3707	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3708
		3709	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3710	my $sound = $soundconf->{compat}[$_]
		3711	or next;
		3712
		3713	my $face = cf::face::find "sound/$sound->[1]";
		3714	cf::sound::set $sound->[0] => $face;
		3715	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3716	}
		3717
		3718	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3719	my $face = cf::face::find "sound/$v";
		3720	cf::sound::set $k => $face;
		3721	}
		3722	}
		3723
		3724	sub reload_resources {
		3725	trace "reloading resource files...\n";
		3726
		3727	reload_materials;
		3728	reload_facedata;
		3729	reload_exp_table;
		3730	reload_sound;
		3731	reload_archetypes;
		3732	reload_regions;
		3733	reload_treasures;
		3734
		3735	trace "finished reloading resource files\n";
		3736	}
		3737
		3738	sub reload_config {
		3739	trace "reloading config file...\n";
		3740
		3741	my $config = load_file "$CONFDIR/config";
		3742	utf8::decode $config;
		3743	*CFG = decode_yaml $config;
		3744
		3745	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3746
		3747	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3748	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3749
		3750	if (exists $CFG{mlockall}) {
		3751	eval {
		3752	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3753	and die "WARNING: m(un)lockall failed: $!\n";
		3754	};
		3755	warn $@ if $@;
		3756	}
		3757	}
		3758
		3759	sub pidfile() {
		3760	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3761	or die "$PIDFILE: $!";
		3762	flock $fh, &Fcntl::LOCK_EX
		3763	or die "$PIDFILE: flock: $!";
		3764	$fh
		3765	}
		3766
		3767	# make sure only one server instance is running at any one time
		3768	sub atomic {
		3769	my $fh = pidfile;
		3770
		3771	my $pid = <$fh>;
		3772	kill 9, $pid if $pid > 0;
		3773
		3774	seek $fh, 0, 0;
		3775	print $fh $$;
		3776	}
		3777
		3778	sub main_loop {
		3779	trace "EV::loop starting\n";
		3780	if (1) {
		3781	EV::loop;
		3782	}
		3783	trace "EV::loop returned\n";
		3784	goto &main_loop unless $REALLY_UNLOOP;
		3785	}
		3786
		3787	sub main {
		3788	cf::init_globals; # initialise logging
		3789
		3790	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3791	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3792	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3793	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3794
		3795	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3796
		3797	# we must not ever block the main coroutine
		3798	$Coro::idle = sub {
		3799	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3800	(async {
		3801	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3802	EV::loop EV::LOOP_ONESHOT;
		3803	})->prio (Coro::PRIO_MAX);
1832	);	3804	};
		3805
		3806	evthread_start IO::AIO::poll_fileno;
		3807
		3808	cf::sync_job {
		3809	cf::incloader::init ();
		3810
		3811	db_init;
		3812
		3813	cf::init_anim;
		3814	cf::init_attackmess;
		3815	cf::init_dynamic;
		3816
		3817	cf::load_settings;
		3818
		3819	reload_resources;
		3820	reload_config;
		3821
		3822	cf::init_uuid;
		3823	cf::init_signals;
		3824	cf::init_skills;
		3825
		3826	cf::init_beforeplay;
		3827
		3828	atomic;
		3829
		3830	load_extensions;
		3831
		3832	utime time, time, $RUNTIMEFILE;
		3833
		3834	# no (long-running) fork's whatsoever before this point(!)
		3835	use POSIX ();
		3836	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3837
		3838	cf::_post_init 0;
		3839	};
		3840
		3841	cf::object::thawer::errors_are_fatal 0;
		3842	info "parse errors in files are no longer fatal from this point on.\n";
		3843
		3844	AE::postpone {
		3845	undef &main; # free gobs of memory :)
		3846	};
		3847
		3848	goto &main_loop;
1833	}	3849	}
1834		3850
1835	#############################################################################	3851	#############################################################################
1836	# the server's main()	3852	# initialisation and cleanup
1837		3853
1838	sub cfg_load {	3854	# install some emergency cleanup handlers
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3855	BEGIN {
		3856	our %SIGWATCHER = ();
		3857	for my $signal (qw(INT HUP TERM)) {
		3858	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3859	cf::cleanup "SIG$signal";
		3860	};
		3861	}
		3862	}
		3863
		3864	sub write_runtime_sync {
		3865	my $t0 = AE::time;
		3866
		3867	# first touch the runtime file to show we are still running:
		3868	# the fsync below can take a very very long time.
		3869
		3870	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3871
		3872	my $guard = cf::lock_acquire "write_runtime";
		3873
		3874	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1840	or return;	3875	or return;
1841		3876
1842	local $/;	3877	my $value = $cf::RUNTIME + 90 + 10;
1843	*CFG = YAML::Syck::Load <$fh>;	3878	# 10 is the runtime save interval, for a monotonic clock
1844	}	3879	# 60 allows for the watchdog to kill the server.
1845		3880
1846	sub main {	3881	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1847	# we must not ever block the main coroutine	3882	and return;
1848	local $Coro::idle = sub {	3883
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3884	# always fsync - this file is important
1850	(Coro::unblock_sub {	3885	aio_fsync $fh
1851	Event::one_event;	3886	and return;
		3887
		3888	# touch it again to show we are up-to-date
		3889	aio_utime $fh, undef, undef;
		3890
		3891	close $fh
		3892	or return;
		3893
		3894	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3895	and return;
		3896
		3897	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3898
		3899	1
		3900	}
		3901
		3902	our $uuid_lock;
		3903	our $uuid_skip;
		3904
		3905	sub write_uuid_sync($) {
		3906	$uuid_skip ||= $_[0];
		3907
		3908	return if $uuid_lock;
		3909	local $uuid_lock = 1;
		3910
		3911	my $uuid = "$LOCALDIR/uuid";
		3912
		3913	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3914	or return;
		3915
		3916	my $value = uuid_seq uuid_cur;
		3917
		3918	unless ($value) {
		3919	info "cowardly refusing to write zero uuid value!\n";
		3920	return;
		3921	}
		3922
		3923	my $value = uuid_str $value + $uuid_skip;
		3924	$uuid_skip = 0;
		3925
		3926	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3927	and return;
		3928
		3929	# always fsync - this file is important
		3930	aio_fsync $fh
		3931	and return;
		3932
		3933	close $fh
		3934	or return;
		3935
		3936	aio_rename "$uuid~", $uuid
		3937	and return;
		3938
		3939	trace "uuid file written ($value).\n";
		3940
		3941	1
		3942
		3943	}
		3944
		3945	sub write_uuid($$) {
		3946	my ($skip, $sync) = @_;
		3947
		3948	$sync ? write_uuid_sync $skip
		3949	: async { write_uuid_sync $skip };
		3950	}
		3951
		3952	sub emergency_save() {
		3953	my $freeze_guard = cf::freeze_mainloop;
		3954
		3955	info "emergency_perl_save: enter\n";
		3956
		3957	# this is a trade-off: we want to be very quick here, so
		3958	# save all maps without fsync, and later call a global sync
		3959	# (which in turn might be very very slow)
		3960	local $USE_FSYNC = 0;
		3961
		3962	cf::sync_job {
		3963	cf::write_runtime_sync; # external watchdog should not bark
		3964
		3965	# use a peculiar iteration method to avoid tripping on perl
		3966	# refcount bugs in for. also avoids problems with players
		3967	# and maps saved/destroyed asynchronously.
		3968	info "emergency_perl_save: begin player save\n";
		3969	for my $login (keys %cf::PLAYER) {
		3970	my $pl = $cf::PLAYER{$login} or next;
		3971	$pl->valid or next;
		3972	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3973	$pl->save;
		3974	}
		3975	info "emergency_perl_save: end player save\n";
		3976
		3977	cf::write_runtime_sync; # external watchdog should not bark
		3978
		3979	info "emergency_perl_save: begin map save\n";
		3980	for my $path (keys %cf::MAP) {
		3981	my $map = $cf::MAP{$path} or next;
		3982	$map->valid or next;
		3983	$map->save;
		3984	}
		3985	info "emergency_perl_save: end map save\n";
		3986
		3987	cf::write_runtime_sync; # external watchdog should not bark
		3988
		3989	info "emergency_perl_save: begin database checkpoint\n";
		3990	BDB::db_env_txn_checkpoint $DB_ENV;
		3991	info "emergency_perl_save: end database checkpoint\n";
		3992
		3993	info "emergency_perl_save: begin write uuid\n";
		3994	write_uuid_sync 1;
		3995	info "emergency_perl_save: end write uuid\n";
		3996
		3997	cf::write_runtime_sync; # external watchdog should not bark
		3998
		3999	trace "emergency_perl_save: syncing database to disk";
		4000	BDB::db_env_txn_checkpoint $DB_ENV;
		4001
		4002	info "emergency_perl_save: starting sync\n";
		4003	IO::AIO::aio_sync sub {
		4004	info "emergency_perl_save: finished sync\n";
1852	})->();	4005	};
		4006
		4007	cf::write_runtime_sync; # external watchdog should not bark
		4008
		4009	trace "emergency_perl_save: flushing outstanding aio requests";
		4010	while (IO::AIO::nreqs || BDB::nreqs) {
		4011	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4012	}
		4013
		4014	cf::write_runtime_sync; # external watchdog should not bark
1853	};	4015	};
1854		4016
1855	cfg_load;	4017	info "emergency_perl_save: leave\n";
1856	db_load;
1857	load_extensions;
1858	Event::loop;
1859	}	4018	}
1860		4019
1861	#############################################################################	4020	sub post_cleanup {
1862	# initialisation	4021	my ($make_core) = @_;
1863		4022
		4023	IO::AIO::flush;
		4024
		4025	error Carp::longmess "post_cleanup backtrace"
		4026	if $make_core;
		4027
		4028	my $fh = pidfile;
		4029	unlink $PIDFILE if <$fh> == $$;
		4030	}
		4031
		4032	# a safer delete_package, copied from Symbol
		4033	sub clear_package($) {
		4034	my $pkg = shift;
		4035
		4036	# expand to full symbol table name if needed
		4037	unless ($pkg =~ /^main::.*::$/) {
		4038	$pkg = "main$pkg" if $pkg =~ /^::/;
		4039	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4040	$pkg .= '::' unless $pkg =~ /::$/;
		4041	}
		4042
		4043	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4044	my $stem_symtab = *{$stem}{HASH};
		4045
		4046	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4047	or return;
		4048
		4049	# clear all symbols
		4050	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4051	for my $name (keys %$leaf_symtab) {
		4052	_gv_clear *{"$pkg$name"};
		4053	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4054	}
		4055	}
		4056
1864	sub reload() {	4057	sub do_reload_perl() {
1865	# can/must only be called in main	4058	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	4059	unless (in_main) {
1867	warn "can only reload from main coroutine\n";	4060	error "can only reload from main coroutine";
1868	return;	4061	return;
1869	}	4062	}
1870		4063
1871	warn "reloading...";	4064	return if $RELOAD++;
1872		4065
1873	local $FREEZE = 1;	4066	my $t1 = AE::time;
		4067
		4068	while ($RELOAD) {
		4069	cf::get_slot 0.1, -1, "reload_perl";
		4070	info "perl_reload: reloading...";
		4071
		4072	trace "perl_reload: entering sync_job";
		4073
		4074	cf::sync_job {
1874	cf::emergency_save;	4075	#cf::emergency_save;
1875		4076
1876	eval {	4077	trace "perl_reload: cancelling all extension coros";
1877	# if anything goes wrong in here, we should simply crash as we already saved
1878
1879	# cancel all watchers
1880	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}
1883
1884	# cancel all extension coros
1885	$_->cancel for values %EXT_CORO;	4078	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	4079	%EXT_CORO = ();
1887		4080
1888	# unload all extensions	4081	trace "perl_reload: removing commands";
1889	for (@exts) {	4082	%COMMAND = ();
1890	warn "unloading <$_>";
1891	unload_extension $_;
1892	}
1893		4083
1894	# unload all modules loaded from $LIBDIR	4084	trace "perl_reload: removing ext/exti commands";
1895	while (my ($k, $v) = each %INC) {	4085	%EXTCMD = ();
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4086	%EXTICMD = ();
1897		4087
1898	warn "removing <$k>";	4088	trace "perl_reload: unloading/nuking all extensions";
1899	delete $INC{$k};	4089	for my $pkg (@EXTS) {
		4090	trace "... unloading $pkg";
1900		4091
1901	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;
1903
1904	if (my $cb = $k->can ("unload_module")) {	4092	if (my $cb = $pkg->can ("unload")) {
		4093	eval {
1905	$cb->();	4094	$cb->($pkg);
		4095	1
		4096	} or error "$pkg unloaded, but with errors: $@";
		4097	}
		4098
		4099	trace "... clearing $pkg";
		4100	clear_package $pkg;
1906	}	4101	}
1907		4102
1908	Symbol::delete_package $k;	4103	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4104	while (my ($k, $v) = each %INC) {
		4105	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4106
		4107	trace "... unloading $k";
		4108	delete $INC{$k};
		4109
		4110	$k =~ s/\.pm$//;
		4111	$k =~ s/\//::/g;
		4112
		4113	if (my $cb = $k->can ("unload_module")) {
		4114	$cb->();
		4115	}
		4116
		4117	clear_package $k;
1909	}	4118	}
1910		4119
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	4120	trace "perl_reload: getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	4121	clear_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4122	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		4123
1919	# remove register_script_function callbacks	4124	trace "perl_reload: unloading cf.pm \"a bit\"";
1920	# TODO
1921
1922	# unload cf.pm "a bit"
1923	delete $INC{"cf.pm"};	4125	delete $INC{"cf.pm"};
		4126	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1924		4127
1925	# don't, removes xs symbols, too,	4128	# don't, removes xs symbols, too,
1926	# and global variables created in xs	4129	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	4130	#clear_package __PACKAGE__;
1928		4131
1929	# reload cf.pm	4132	info "perl_reload: unload completed, starting to reload now";
1930	warn "reloading cf.pm";	4133
		4134	trace "perl_reload: reloading cf.pm";
1931	require cf;	4135	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4136	cf::_connect_to_perl_1;
1933		4137
1934	# load config and database again	4138	trace "perl_reload: loading config and database again";
1935	cf::cfg_load;	4139	cf::reload_config;
1936	cf::db_load;
1937		4140
1938	# load extensions	4141	trace "perl_reload: loading extensions";
1939	warn "load extensions";
1940	cf::load_extensions;	4142	cf::load_extensions;
1941		4143
1942	# reattach attachments to objects	4144	if ($REATTACH_ON_RELOAD) {
1943	warn "reattach";	4145	trace "perl_reload: reattaching attachments to objects/players";
1944	_global_reattach;	4146	_global_reattach; # objects, sockets
		4147	trace "perl_reload: reattaching attachments to maps";
		4148	reattach $_ for values %MAP;
		4149	trace "perl_reload: reattaching attachments to players";
		4150	reattach $_ for values %PLAYER;
		4151	}
		4152
		4153	cf::_post_init 1;
		4154
		4155	trace "perl_reload: leaving sync_job";
		4156
		4157	1
		4158	} or do {
		4159	error $@;
		4160	cf::cleanup "perl_reload: error, exiting.";
		4161	};
		4162
		4163	--$RELOAD;
		4164	}
		4165
		4166	$t1 = AE::time - $t1;
		4167	info "perl_reload: completed in ${t1}s\n";
		4168	};
		4169
		4170	our $RELOAD_WATCHER; # used only during reload
		4171
		4172	sub reload_perl() {
		4173	# doing reload synchronously and two reloads happen back-to-back,
		4174	# coro crashes during coro_state_free->destroy here.
		4175
		4176	$RELOAD_WATCHER ||= cf::async {
		4177	Coro::AIO::aio_wait cache_extensions;
		4178
		4179	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4180	do_reload_perl;
		4181	undef $RELOAD_WATCHER;
		4182	};
1945	};	4183	};
1946
1947	if ($@) {
1948	warn $@;
1949	warn "error while reloading, exiting.";
1950	exit 1;
1951	}
1952
1953	warn "reloaded successfully";
1954	};
1955
1956	#############################################################################
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	4184	}
1998
1999	register "<global>", __PACKAGE__;
2000		4185
2001	register_command "reload" => sub {	4186	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	4187	my ($who, $arg) = @_;
2003		4188
2004	if ($who->flag (FLAG_WIZ)) {	4189	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	4190	$who->message ("reloading server.");
		4191	async {
		4192	$Coro::current->{desc} = "perl_reload";
		4193	reload_perl;
		4194	};
2008	}	4195	}
2009	};	4196	};
2010		4197
2011	unshift @INC, $LIBDIR;	4198	#############################################################################
2012		4199
2013	$TICK_WATCHER = Event->timer (	4200	my $bug_warning = 0;
2014	reentrant => 0,
2015	prio => 0,
2016	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,
2018	cb => sub {
2019	unless ($FREEZE) {
2020	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;
2022	}
2023		4201
2024	$NEXT_TICK += $TICK;	4202	sub wait_for_tick() {
		4203	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2025		4204
2026	# if we are delayed by four ticks or more, skip them all	4205	$WAIT_FOR_TICK->wait;
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4206	}
2028		4207
2029	$TICK_WATCHER->at ($NEXT_TICK);	4208	sub wait_for_tick_begin() {
2030	$TICK_WATCHER->start;	4209	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4210
		4211	my $signal = new Coro::Signal;
		4212	push @WAIT_FOR_TICK_BEGIN, $signal;
		4213	$signal->wait;
		4214	}
		4215
		4216	sub tick {
		4217	if ($Coro::current != $Coro::main) {
		4218	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4219	unless ++$bug_warning > 10;
		4220	return;
2031	},	4221	}
2032	);
2033		4222
2034	IO::AIO::max_poll_time $TICK * 0.2;	4223	cf::one_tick; # one server iteration
2035		4224
2036	Event->io (	4225	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2037	fd => IO::AIO::poll_fileno,
2038	poll => 'r',
2039	prio => 5,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043		4226
2044	Event->timer (	4227	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2045	data => WF_AUTOCANCEL,	4228	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2046	after => 0,	4229	Coro::async_pool {
2047	interval => 10,	4230	$Coro::current->{desc} = "runtime saver";
2048	cb => sub {
2049	(Coro::unblock_sub {
2050	write_runtime	4231	write_runtime_sync
2051	or warn "ERROR: unable to write runtime file: $!";	4232	or error "ERROR: unable to write runtime file: $!";
2052	})->();	4233	};
2053	},	4234	}
2054	);	4235
		4236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4237	$sig->send;
		4238	}
		4239	$WAIT_FOR_TICK->broadcast;
		4240
		4241	$LOAD = ($NOW - $TICK_START) / $TICK;
		4242	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4243
		4244	if (0) {
		4245	if ($NEXT_TICK) {
		4246	my $jitter = $TICK_START - $NEXT_TICK;
		4247	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4248	debug "jitter $JITTER\n";#d#
		4249	}
		4250	}
		4251	}
		4252
		4253	{
		4254	# configure BDB
		4255	info "initialising database";
		4256
		4257	BDB::min_parallel 16;
		4258	BDB::max_poll_reqs $TICK * 0.1;
		4259	#$AnyEvent::BDB::WATCHER->priority (1);
		4260
		4261	unless ($DB_ENV) {
		4262	$DB_ENV = BDB::db_env_create;
		4263	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4264	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4265	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4266	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4267	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4268
		4269	cf::sync_job {
		4270	eval {
		4271	BDB::db_env_open
		4272	$DB_ENV,
		4273	$BDBDIR,
		4274	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4275	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4276	0666;
		4277
		4278	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4279	};
		4280
		4281	cf::cleanup "db_env_open(db): $@" if $@;
		4282	};
		4283	}
		4284
		4285	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4286	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4287	};
		4288	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4289	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4290	};
		4291	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4292	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4293	};
		4294
		4295	info "database initialised";
		4296	}
		4297
		4298	{
		4299	# configure IO::AIO
		4300
		4301	info "initialising aio";
		4302	IO::AIO::min_parallel 8;
		4303	IO::AIO::max_poll_time $TICK * 0.1;
		4304	undef $AnyEvent::AIO::WATCHER;
		4305	info "aio initialised";
		4306	}
		4307
		4308	our $_log_backtrace;
		4309	our $_log_backtrace_last;
		4310
		4311	sub _log_backtrace {
		4312	my ($msg, @addr) = @_;
		4313
		4314	$msg =~ s/\n$//;
		4315
		4316	if ($_log_backtrace_last eq $msg) {
		4317	LOG llevInfo, "[ABT] $msg\n";
		4318	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4319	# limit the # of concurrent backtraces
		4320	} elsif ($_log_backtrace < 2) {
		4321	$_log_backtrace_last = $msg;
		4322	++$_log_backtrace;
		4323	my $perl_bt = Carp::longmess $msg;
		4324	async {
		4325	$Coro::current->{desc} = "abt $msg";
		4326
		4327	my @bt = fork_call {
		4328	@addr = map { sprintf "%x", $_ } @addr;
		4329	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4330	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4331	or die "addr2line: $!";
		4332
		4333	my @funcs;
		4334	my @res = <$fh>;
		4335	chomp for @res;
		4336	while (@res) {
		4337	my ($func, $line) = splice @res, 0, 2, ();
		4338	push @funcs, "[$func] $line";
		4339	}
		4340
		4341	@funcs
		4342	};
		4343
		4344	LOG llevInfo, "[ABT] $perl_bt\n";
		4345	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4346	LOG llevInfo, "[ABT] $_\n" for @bt;
		4347	--$_log_backtrace;
		4348	};
		4349	} else {
		4350	LOG llevInfo, "[ABT] $msg\n";
		4351	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4352	}
		4353	}
		4354
		4355	# load additional modules
		4356	require "cf/$_.pm" for @EXTRA_MODULES;
		4357	cf::_connect_to_perl_2;
		4358
		4359	END { cf::emergency_save }
2055		4360
2056	1	4361	1
2057		4362

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