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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.588 by root, Thu Nov 1 13:02:52 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 ();
		62	use IO::AIO ();
24	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
25		66
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
27		68
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	69	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		73
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		82
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
34		86
35	our %COMMAND = ();	87	our %COMMAND = ();
36	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
		89
		90	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
		93	our %EXT_CORO = (); # coroutines bound to extensions
		94	our %EXT_MAP = (); # pluggable maps
38		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	97	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
41		100
42	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	102
		103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
		108	our $LOCALDIR = localdir;
		109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		112	our $RANDOMDIR = "$LOCALDIR/random";
		113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
		124
		125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
45	our $NOW;	143	our $NOW;
46		144
47	our %CFG;	145	our (%PLAYER, %PLAYER_LOADING); # all users
		146	our (%MAP, %MAP_LOADING ); # all maps
		147	our $LINK_MAP; # the special {link} map, which is always available
48		148
49	our $UPTIME; $UPTIME ||= time;	149	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		151
52	our %MAP; # all maps	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	153	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	154	our $JITTER; # average jitter
55	our %EXT_CORO;	155	our $TICK_START; # for load detecting purposes
		156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
56		164
57	binmode STDOUT;	165	binmode STDOUT;
58	binmode STDERR;	166	binmode STDERR;
59		167
60	# read virtual server time, if available	168	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
65	}	173	}
66		174
67	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		176
73	# a special map that is always available	177	mkdir $_
74	our $LINK_MAP;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		179
75	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
76		181
		182	sub cf::map::normalise;
		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
77	#############################################################################	188	#############################################################################
78		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
79	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
80		202
81	=over 4	203	=over 4
82		204
83	=item $cf::UPTIME	205	=item $cf::UPTIME
84		206
85	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
86		223
87	=item $cf::RUNTIME	224	=item $cf::RUNTIME
88		225
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	227	every server tick.
91		228
92	=item $cf::LIBDIR	229	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		230	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		231	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		232
94	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		235	unique-items directory, player file directory, random maps directory and
		236	database environment.
96		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
97	=item $cf::NOW	244	=item $cf::LOAD
98		245
99	The time of the last (current) server tick.	246	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		247
105	=item %cf::CFG	248	=item %cf::CFG
106		249
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	251	from wherever your confdir points to.
109		252
		253	=item cf::wait_for_tick, cf::wait_for_tick_begin
		254
		255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		256	returns directly I<after> the tick processing (and consequently, can only wake one thread
		257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
110	=back	288	=back
111		289
112	=cut	290	=cut
113		291
114	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	299	my $msg = join "", @_;
117	utf8::encode $msg;
118		300
119	$msg .= "\n"	301	$msg .= "\n"
120	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
121		303
122	LOG llevError, "cfperl: $msg";	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	305
124	}	306	LOG llevWarn, $msg;
		307	};
		308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
125		322
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		330
133	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	332	# within the Safe compartment.
135	for my $pkg (qw(	333	for my $pkg (qw(
136	cf::global cf::attachable	334	cf::global cf::attachable
137	cf::object cf::object::player	335	cf::object cf::object::player
138	cf::client cf::player	336	cf::client cf::player
139	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
140	cf::map cf::party cf::region	339	cf::party cf::region
141	)) {	340	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	342	}
145		343
146	$Event::DIED = sub {	344	$EV::DIED = sub {
147	warn "error in event callback: @_";	345	warn "error in event callback: $@";
148	};	346	};
149		347
150	my %ext_pkg;	348	#############################################################################
151	my @exts;	349
152	my @hook;	350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
153		354
154	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
155		356
156	=over 4	357	=over 4
157		358
158	=cut	359	=item dumpval $ref
159		360
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	361	=cut
161		362
		363	sub dumpval {
		364	eval {
		365	local $SIG{__DIE__};
		366	my $d;
		367	if (1) {
		368	$d = new Data::Dumper([$_[0]], ["*var"]);
		369	$d->Terse(1);
		370	$d->Indent(2);
		371	$d->Quotekeys(0);
		372	$d->Useqq(1);
		373	#$d->Bless(...);
		374	$d->Seen($_[1]) if @_ > 1;
		375	$d = $d->Dump();
		376	}
		377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		378	$d
		379	} || "[unable to dump $_[0]: '$@']";
		380	}
		381
		382	=item $scalar = cf::load_file $path
		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
162	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
163		435
164	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
165		437
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
174		439
175	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
176		441
177	=cut	442	=cut
178		443
179	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
181	JSON::Syck::Dump $_[0]	446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
182	}	509	}
183		510
184	=item cf::lock_wait $string	511	=item cf::lock_wait $string
185		512
186	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
187		514
188	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
189		516
190	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
193	returned.	520	returned.
194		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
195	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
197		527
198	=cut	528	=item $locked = cf::lock_active $string
199		529
200	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
201		535
202	sub lock_wait($) {	536	sub lock_wait($) {
203	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	538	}
211		539
212	sub lock_acquire($) {	540	sub lock_acquire($) {
213	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
214		543
215	# wait, to be sure we are not locked	544	sub lock_active($) {
216	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	546	}
225		547
226	sub freeze_mainloop {	548	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
228		550
229	my $guard = Coro::guard { $TICK_WATCHER->start };	551	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	552	}
231	$guard	553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
		621	}
		622	};
		623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
232	}	637	}
233		638
234	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
235		640
236	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		646
242	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
243		648
244	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
245		650
246	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
249		655
250	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
253	fast or be very important.	659	fast or be very important.
…		…
255	=cut	661	=cut
256		662
257	sub sync_job(&) {	663	sub sync_job(&) {
258	my ($job) = @_;	664	my ($job) = @_;
259		665
260	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
261	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
263		671
264	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	673
266	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
267		675
268	my $busy = 1;	676	my $busy = 1;
269	my @res;	677	my @res;
270		678
271	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	681	@res = eval { $job->() };
273	warn $@ if $@;	682	error $@ if $@;
274	undef $busy;	683	undef $busy;
275	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
276		685
277	while ($busy) {	686	while ($busy) {
278	unless (Coro::cede) {	687	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
281	}	691	}
282	}	692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
283		697
284	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
285	} else {	699	} else {
286	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
287		701
…		…
289	}	703	}
290	}	704	}
291		705
292	=item $coro = cf::async_ext { BLOCK }	706	=item $coro = cf::async_ext { BLOCK }
293		707
294	Like async, but this coro is automcatially being canceled when the	708	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	709	extension calling this is being unloaded.
296		710
297	=cut	711	=cut
298		712
299	sub async_ext(&) {	713	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
308		722
309	$coro	723	$coro
310	}	724	}
311		725
312	sub write_runtime {	726	=item fork_call { }, @args
313	my $runtime = cf::localdir . "/runtime";
314		727
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
316	or return;	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
317		732
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	733	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		734
322	aio_fsync $fh	735	sub post_fork {
323	and return;	736	reset_signals;
		737	}
324		738
325	close $fh	739	sub fork_call(&@) {
326	or return;	740	my ($cb, @args) = @_;
327		741
328	aio_rename "$runtime~", $runtime	742	# we seemingly have to make a local copy of the whole thing,
329	and return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
330		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
331	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
		918	}
		919
		920	=item cf::datalog type => key => value, ...
		921
		922	Log a datalog packet of the given type with the given key-value pairs.
		923
		924	=cut
		925
		926	sub datalog($@) {
		927	my ($type, %kv) = @_;
		928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	929	}
333		930
334	=back	931	=back
335		932
336	=cut	933	=cut
337		934
338	#############################################################################	935	#############################################################################
339		936
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457
458	#############################################################################
459
460	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
461		938
462	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
463	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
465		942
466	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	945	Deliantra).
469		946
470	=over 4	947	=over 4
471		948
472	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
473		950
…		…
517	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
518		995
519	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
520	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
521		998
522	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
523	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
524		1001
525	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
526		1003
527	=over 4	1004	=over 4
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	1064	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	1065	our @CB_MAP = ();
589		1066
590	my %attachment;	1067	my %attachment;
591		1068
		1069	sub cf::attachable::thawer_merge {
		1070	# simply override everything except _meta
		1071	local $_[0]{_meta};
		1072	%{$_[0]} = %{$_[1]};
		1073	}
		1074
592	sub _attach_cb($$$$) {	1075	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	1076	my ($registry, $event, $prio, $cb) = @_;
594		1077
595	use sort 'stable';	1078	use sort 'stable';
596		1079
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
631		1114
632	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		1119
637	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
639		1122
640	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
645		1128
646	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
647	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
648		1131
649	} elsif (ref $type) {	1132	} elsif (ref $type) {
650	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
651		1134
652	} else {	1135	} else {
653	shift @arg;	1136	shift @arg;
654	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
655	}	1138	}
656	}	1139	}
657	}	1140	}
658		1141
659	sub _object_attach {	1142	sub _object_attach {
…		…
669	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
670	}	1153	}
671		1154
672	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
673	} else {	1156	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
675	}	1158	}
676		1159
677	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
678	}	1161	}
679		1162
…		…
681	if (ref $_[0]) {	1164	if (ref $_[0]) {
682	_object_attach @_;	1165	_object_attach @_;
683	} else {	1166	} else {
684	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
685	}	1168	}
		1169	_recalc_want;
686	};	1170	};
687		1171
688	# all those should be optimised	1172	# all those should be optimised
689	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
694	reattach ($obj);	1178	reattach ($obj);
695	} else {	1179	} else {
696	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
697	}	1181	}
		1182	_recalc_want;
698	};	1183	};
699		1184
700	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
702		1187
…		…
717	";	1202	";
718	die if $@;	1203	die if $@;
719	}	1204	}
720		1205
721	our $override;	1206	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		1208
724	sub override {	1209	sub override {
725	$override = 1;	1210	$override = 1;
726	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
727	}	1212	}
728		1213
729	sub do_invoke {	1214	sub do_invoke {
730	my $event = shift;	1215	my $event = shift;
731	my $callbacks = shift;	1216	my $callbacks = shift;
732		1217
733	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
734		1219
735	local $override;	1220	local $override;
736		1221
737	for (@$callbacks) {	1222	for (@$callbacks) {
738	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
739		1224
740	if ($@) {	1225	if ($@) {
741	warn "$@";
742	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
743	override;	1227	override;
744	}	1228	}
745		1229
746	return 1 if $override;	1230	return 1 if $override;
747	}	1231	}
748		1232
749	0	1233	0
750	}	1234	}
751		1235
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1237
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1239
756	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
757		1241
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1245
762	=back	1246	=back
763		1247
764	=cut	1248	=cut
765		1249
766	#############################################################################	1250	#############################################################################
767	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
768		1294
769	sub reattach {	1295	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1297	my ($obj) = @_;
		1298
		1299	# no longer needed after getting rid of delete_package?
		1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1301
773	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
774		1303
775	@$registry = ();	1304	@$registry = ();
776		1305
…		…
781	for (@$attach) {	1310	for (@$attach) {
782	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
783	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
784	}	1313	}
785	} else {	1314	} else {
786	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
787	}	1316	}
788	}	1317	}
789	}	1318	}
790		1319
791	cf::attachable->attach (	1320	cf::attachable->attach (
792	prio => -1000000,	1321	prio => -1000000,
793	on_instantiate => sub {	1322	on_instantiate => sub {
794	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
795		1324
796	$data = from_json $data;	1325	$data = decode_json $data;
797		1326
798	for (@$data) {	1327	for (@$data) {
799	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
800		1329
801	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1346	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
819		1348
820	sync_job {	1349	sync_job {
821	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
824		1355
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1359	if ($cf::USE_FSYNC) {
		1360	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;
828	aio_fsync $fh;	1361	aio_fsync $fh;
		1362	}
829	close $fh;	1363	aio_close $fh;
830		1364
831	if (@$objs) {	1365	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
		1370	if ($cf::USE_FSYNC) {
		1371	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;
836	aio_fsync $fh;	1372	aio_fsync $fh;
		1373	}
837	close $fh;	1374	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
839	}	1376	}
840	} else {	1377	} else {
841	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
842	}	1379	}
843		1380
844	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1385	} else {
846	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
847	}	1387	}
848	} else {	1388	} else {
849	aio_unlink $filename;	1389	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
851	}	1391	}
852	}	1392	};
853	}	1393	}
854		1394
855	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
857		1397
…		…
869	or return;	1409	or return;
870		1410
871	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
873	or return;	1413	or return;
		1414
874	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
875	}	1417	}
876		1418
		1419	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
879	return ($data, $av);	1424	($data, $av)
880	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
881		1432
882	#############################################################################	1433	#############################################################################
883	# command handling &c	1434	# command handling &c
884		1435
885	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1450	}
900		1451
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1453
903	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
904		1459
905	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
906	called.	1461	called.
907		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
908	=cut	1474	=cut
909		1475
910	sub register_extcmd {	1476	sub register_extcmd {
911	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
912		1478
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1479	$EXTCMD{$name} = $cb;
917	}	1480	}
		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
918		1489
919	cf::player->attach (	1490	cf::player->attach (
920	on_command => sub {	1491	on_unknown_command => sub {
921	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
922		1493
923	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
924	or return;	1495	or return;
925		1496
…		…
930	cf::override;	1501	cf::override;
931	},	1502	},
932	on_extcmd => sub {	1503	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
934		1505
935	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1507
937	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
943	} else {	1520	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1522	}
946		1523
947	cf::override;	1524	cf::override;
948	},	1525	},
949	);	1526	);
950		1527
951	sub register {	1528	# "readahead" all extensions
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1529	sub cache_extensions {
958	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
959		1531
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
961	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
962	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965
966	warn "loading '$path' into '$pkg'\n";
967
968	open my $fh, "<:utf8", $path
969	or die "$path: $!";
970
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }
1000
1001	# remove commands
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}	1535	}
1010	}	1536	};
1011		1537
1012	# remove extcmds	1538	$grp
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1539	}
1014	delete $EXTCMD{$name};
1015	}
1016		1540
1017	if (my $cb = $pkg->can ("unload")) {	1541	sub _ext_cfg_reg($$$$) {
1018	eval {	1542	my ($rvar, $varname, $cfgname, $default) = @_;
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023		1543
1024	Symbol::delete_package $pkg;	1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1025	}	1550	}
1026		1551
1027	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
1028	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;	1561	next unless -r $path;
1030	eval {	1562
1031	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
1032	1	1635	}
1033	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
1034	}	1648	};
1035	}	1649	}
1036		1650
1037	#############################################################################	1651	#############################################################################
1038	# load/save/clean perl data associated with a map
1039		1652
1040	*cf::mapsupport::on_clean = sub {	1653	=back
		1654
		1655	=head2 CORE EXTENSIONS
		1656
		1657	Functions and methods that extend core deliantra objects.
		1658
		1659	=cut
		1660
		1661	package cf::player;
		1662
		1663	use Coro::AIO;
		1664
		1665	=head3 cf::player
		1666
		1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
		1682
		1683	=item cf::player::find $login
		1684
		1685	Returns the given player object, loading it if necessary (might block).
		1686
		1687	=cut
		1688
		1689	sub playerdir($) {
		1690	"$PLAYERDIR/"
		1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1692	}
		1693
		1694	sub path($) {
		1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1696
		1697	(playerdir $login) . "/playerdata"
		1698	}
		1699
		1700	sub find_active($) {
		1701	$cf::PLAYER{$_[0]}
		1702	and $cf::PLAYER{$_[0]}->active
		1703	and $cf::PLAYER{$_[0]}
		1704	}
		1705
		1706	sub exists($) {
1041	my ($map) = @_;	1707	my ($login) = @_;
1042		1708
1043	my $path = $map->tmpname;	1709	$cf::PLAYER{$login}
1044	defined $path or return;	1710	or !aio_stat path $login
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}	1711	}
1057		1712
1058	# TODO: compatibility cruft, remove when no longer needed	1713	sub find($) {
		1714	return $cf::PLAYER{$_[0]} || do {
		1715	my $login = $_[0];
		1716
		1717	my $guard = cf::lock_acquire "user_find:$login";
		1718
		1719	$cf::PLAYER{$_[0]} || do {
		1720	# rename old playerfiles to new ones
		1721	#TODO: remove when no longer required
		1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1725	aio_unlink +(playerdir $login) . "/$login.pl";
		1726
		1727	my $f = new_from_file cf::object::thawer path $login
		1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
		1735	$cf::PLAYER{$login} = $pl
		1736	}
		1737	}
		1738	}
		1739
1059	cf::player->attach (	1740	cf::player->attach (
1060	on_load => sub {	1741	on_load => sub {
1061	my ($pl, $path) = @_;	1742	my ($pl, $path) = @_;
1062		1743
1063	for my $o (all_objects $pl->ob) {	1744	# restore slots saved in save, below
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1745	my $slots = delete $pl->{_slots};
1065	$o->set_ob_key_value ("_perl_data");
1066		1746
1067	%$o = %{ Storable::thaw pack "H*", $value };	1747	$pl->ob->current_weapon ($slots->[0]);
1068	}	1748	$pl->combat_ob ($slots->[1]);
1069	}	1749	$pl->ranged_ob ($slots->[2]);
1070	},	1750	},
1071	);	1751	);
1072		1752
1073	#############################################################################	1753	sub save($) {
		1754	my ($pl) = @_;
1074		1755
1075	=head2 CORE EXTENSIONS	1756	return if $pl->{deny_save};
1076		1757
1077	Functions and methods that extend core crossfire objects.	1758	my $path = path $pl;
		1759	my $guard = cf::lock_acquire "user_save:$path";
1078		1760
1079	=head3 cf::player	1761	return if $pl->{deny_save};
		1762
		1763	aio_mkdir playerdir $pl, 0770;
		1764	$pl->{last_save} = $cf::RUNTIME;
		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
		1771	$pl->save_pl ($path);
		1772	cf::cede_to_tick;
		1773	}
		1774
		1775	sub new($) {
		1776	my ($login) = @_;
		1777
		1778	my $self = create;
		1779
		1780	$self->ob->name ($login);
		1781	$self->{deny_save} = 1;
		1782
		1783	$cf::PLAYER{$login} = $self;
		1784
		1785	$self
		1786	}
		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
		1798	=item $pl->quit_character
		1799
		1800	Nukes the player without looking back. If logged in, the connection will
		1801	be destroyed. May block for a long time.
		1802
		1803	=cut
		1804
		1805	sub quit_character {
		1806	my ($pl) = @_;
		1807
		1808	my $name = $pl->ob->name;
		1809
		1810	$pl->{deny_save} = 1;
		1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1812
		1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
		1820	$pl->ns->destroy if $pl->ns;
		1821
		1822	my $path = playerdir $pl;
		1823	my $temp = "$path~$cf::RUNTIME~deleting~";
		1824	aio_rename $path, $temp;
		1825	delete $cf::PLAYER{$pl->ob->name};
		1826	$pl->destroy;
		1827
		1828	my $prefix = qr<^~\Q$name\E/>;
		1829
		1830	# nuke player maps
		1831	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1832
		1833	IO::AIO::aio_rmtree $temp;
		1834	}
		1835
		1836	=item $pl->kick
		1837
		1838	Kicks a player out of the game. This destroys the connection.
		1839
		1840	=cut
		1841
		1842	sub kick {
		1843	my ($pl, $kicker) = @_;
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1846	$pl->killer ("kicked");
		1847	$pl->ns->destroy;
		1848	}
		1849
		1850	=item cf::player::list_logins
		1851
		1852	Returns am arrayref of all valid playernames in the system, can take a
		1853	while and may block, so not sync_job-capable, ever.
		1854
		1855	=cut
		1856
		1857	sub list_logins {
		1858	my $dirs = aio_readdir $PLAYERDIR
		1859	or return [];
		1860
		1861	my @logins;
		1862
		1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
		1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1870	aio_read $fh, 0, 512, my $buf, 0 or next;
		1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
		1873
		1874	utf8::decode $login;
		1875	push @logins, $login;
		1876	}
		1877
		1878	\@logins
		1879	}
		1880
		1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
		1884
		1885	Returns an arrayref of map paths that are private for this
		1886	player. May block.
		1887
		1888	=cut
		1889
		1890	sub maps($) {
		1891	my ($pl) = @_;
		1892
		1893	$pl = ref $pl ? $pl->ob->name : $pl;
		1894
		1895	my $files = aio_readdir playerdir $pl
		1896	or return;
		1897
		1898	my @paths;
		1899
		1900	for (@$files) {
		1901	utf8::decode $_;
		1902	next if /\.(?:pl|pst)$/;
		1903	next unless /^$PATH_SEP/o;
		1904
		1905	push @paths, cf::map::normalise "~$pl/$_";
		1906	}
		1907
		1908	\@paths
		1909	}
		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
		1915	=item $player->ext_reply ($msgid, @msg)
		1916
		1917	Sends an ext reply to the player.
		1918
		1919	=cut
		1920
		1921	sub ext_reply($$@) {
		1922	my ($self, $id, @msg) = @_;
		1923
		1924	$self->ns->ext_reply ($id, @msg)
		1925	}
		1926
		1927	=item $player->ext_msg ($type, @msg)
		1928
		1929	Sends an ext event to the client.
		1930
		1931	=cut
		1932
		1933	sub ext_msg($$@) {
		1934	my ($self, $type, @msg) = @_;
		1935
		1936	$self->ns->ext_msg ($type, @msg);
		1937	}
		1938
		1939	=head3 cf::region
1080		1940
1081	=over 4	1941	=over 4
1082		1942
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut	1943	=cut
1088		1944
1089	sub cf::player::exists($) {	1945	package cf::region;
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093		1946
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)	1947	=item cf::region::find_by_path $path
1095		1948
1096	Sends an ext reply to the player.	1949	Tries to decuce the likely region for a map knowing only its path.
1097		1950
1098	=cut	1951	=cut
1099		1952
1100	sub cf::player::ext_reply($$$%) {	1953	sub find_by_path($) {
1101	my ($self, $id, %msg) = @_;	1954	my ($path) = @_;
1102		1955
1103	$msg{msgid} = $id;	1956	$path =~ s/^~[^\/]*//; # skip ~login
1104		1957
1105	$self->send ("ext " . to_json \%msg);	1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
1106	}	1968	}
1107		1969
1108	=back	1970	=back
1109
1110		1971
1111	=head3 cf::map	1972	=head3 cf::map
1112		1973
1113	=over 4	1974	=over 4
1114		1975
…		…
1117	package cf::map;	1978	package cf::map;
1118		1979
1119	use Fcntl;	1980	use Fcntl;
1120	use Coro::AIO;	1981	use Coro::AIO;
1121		1982
		1983	use overload
		1984	'""' => \&as_string,
		1985	fallback => 1;
		1986
1122	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1124		1989
1125	sub generate_random_map {	1990	sub generate_random_map {
		1991	my ($self, $rmp) = @_;
		1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
		1995	$self->_create_random_map ($rmp);
		1996	}
		1997
		1998	=item cf::map->register ($regex, $prio)
		1999
		2000	Register a handler for the map path matching the given regex at the
		2001	givne priority (higher is better, built-in handlers have priority 0, the
		2002	default).
		2003
		2004	=cut
		2005
		2006	sub register {
		2007	my (undef, $regex, $prio) = @_;
		2008	my $pkg = caller;
		2009
		2010	push @{"$pkg\::ISA"}, __PACKAGE__;
		2011
		2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2013	}
		2014
		2015	# also paths starting with '/'
		2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2017
		2018	sub thawer_merge {
		2019	my ($self, $merge) = @_;
		2020
		2021	# we have to keep some variables in memory intact
		2022	local $self->{path};
		2023	local $self->{load_path};
		2024
		2025	$self->SUPER::thawer_merge ($merge);
		2026	}
		2027
		2028	sub normalise {
1126	my ($path, $rmp) = @_;	2029	my ($path, $base) = @_;
1127		2030
1128	# mit "rum" bekleckern, nicht	2031	$path = "$path"; # make sure it's a string
1129	cf::map::_create_random_map	2032
		2033	$path =~ s/\.map$//;
		2034
		2035	# map plan:
		2036	#
		2037	# /! non-realised random map exit (special hack!)
		2038	# {... are special paths that are not being touched
		2039	# ?xxx/... are special absolute paths
		2040	# ?random/... random maps
		2041	# /... normal maps
		2042	# ~user/... per-player map of a specific user
		2043
		2044	$path =~ s/$PATH_SEP/\//go;
		2045
		2046	# treat it as relative path if it starts with
		2047	# something that looks reasonable
		2048	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2049	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2050
		2051	$base =~ s{[^/]+/?$}{};
		2052	$path = "$base/$path";
		2053	}
		2054
		2055	for ($path) {
		2056	redo if s{/\.?/}{/};
		2057	redo if s{/[^/]+/\.\./}{/};
		2058	}
		2059
1130	$path,	2060	$path
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})
1142	}	2061	}
1143		2062
1144	# and all this just because we cannot iterate over	2063	sub new_from_path {
1145	# all maps in C++...	2064	my (undef, $path, $base) = @_;
1146	sub change_all_map_light {	2065
		2066	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2067
		2068	$path = normalise $path, $base;
		2069
		2070	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2071	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2072	my $self = bless cf::map::new, $pkg;
		2073	$self->{path} = $path; $self->path ($path);
		2074	$self->init; # pass $1 etc.
		2075	return $self;
		2076	}
		2077	}
		2078
		2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2080	()
		2081	}
		2082
		2083	# may re-bless or do other evil things
		2084	sub init {
1147	my ($change) = @_;	2085	my ($self) = @_;
1148		2086
1149	$_->change_map_light ($change)	2087	$self
1150	for grep $_->outdoor, values %cf::MAP;
1151	}	2088	}
1152		2089
		2090	sub as_string {
		2091	my ($self) = @_;
		2092
		2093	"$self->{path}"
		2094	}
		2095
		2096	# the displayed name, this is a one way mapping
		2097	sub visible_name {
		2098	&as_string
		2099	}
		2100
		2101	# the original (read-only) location
		2102	sub load_path {
		2103	my ($self) = @_;
		2104
		2105	"$MAPDIR/$self->{path}.map"
		2106	}
		2107
		2108	# the temporary/swap location
		2109	sub save_path {
		2110	my ($self) = @_;
		2111
		2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2113	"$TMPDIR/$path.map"
		2114	}
		2115
		2116	# the unique path, undef == no special unique path
		2117	sub uniq_path {
		2118	my ($self) = @_;
		2119
		2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2121	"$UNIQUEDIR/$path"
		2122	}
		2123
		2124	sub decay_objects {
		2125	my ($self) = @_;
		2126
		2127	return if $self->{deny_reset};
		2128
		2129	$self->do_decay_objects;
		2130	}
		2131
		2132	sub unlink_save {
		2133	my ($self) = @_;
		2134
		2135	utf8::encode (my $save = $self->save_path);
		2136	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2137	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2138	}
		2139
1153	sub try_load_header($) {	2140	sub load_header_from($) {
1154	my ($path) = @_;	2141	my ($self, $path) = @_;
1155		2142
1156	utf8::encode $path;	2143	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1158	or return;	2145	or return;
1159		2146
1160	my $map = cf::map::new	2147	$self->_load_header ($f)
1161	or return;	2148	or return;
1162		2149
1163	# for better error messages only, will be overwritten	2150	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	2151	$f->resolve_delayed_derefs;
1165		2152
1166	$map->load_header ($path)	2153	$self->{load_path} = $path;
		2154
		2155	1
		2156	}
		2157
		2158	# used to laod the header of an original map
		2159	sub load_header_orig {
		2160	my ($self) = @_;
		2161
		2162	$self->load_header_from ($self->load_path)
		2163	}
		2164
		2165	# used to laod the header of an instantiated map
		2166	sub load_header_temp {
		2167	my ($self) = @_;
		2168
		2169	$self->load_header_from ($self->save_path)
		2170	}
		2171
		2172	# called after loading the header from an instantiated map
		2173	sub prepare_temp {
		2174	my ($self) = @_;
		2175
		2176	$self->last_access ((delete $self->{last_access})
		2177	|| $cf::RUNTIME); #d#
		2178	# safety
		2179	$self->{instantiate_time} = $cf::RUNTIME
		2180	if $self->{instantiate_time} > $cf::RUNTIME;
		2181	}
		2182
		2183	# called after loading the header from an original map
		2184	sub prepare_orig {
		2185	my ($self) = @_;
		2186
		2187	$self->{load_original} = 1;
		2188	$self->{instantiate_time} = $cf::RUNTIME;
		2189	$self->last_access ($cf::RUNTIME);
		2190	$self->instantiate;
		2191	}
		2192
		2193	sub load_header {
		2194	my ($self) = @_;
		2195
		2196	if ($self->load_header_temp) {
		2197	$self->prepare_temp;
		2198	} else {
		2199	$self->load_header_orig
1167	or return;	2200	or return;
		2201	$self->prepare_orig;
		2202	}
1168		2203
1169	$map->{load_path} = $path;	2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
1170		2206
1171	$map	2207	$self->default_region (cf::region::find_by_path $self->{path})
		2208	unless $self->default_region;
		2209
		2210	1
1172	}	2211	}
1173		2212
1174	sub find;	2213	sub find;
1175	sub find {	2214	sub find {
1176	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1177		2216
1178	#warn "find<$path,$origin>\n";#d#	2217	cf::cede_to_tick;
1179		2218
1180	$path = new cf::path $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1181	my $key = $path->as_string;
1182		2220
1183	cf::lock_wait "map_find:$key";	2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1184
1185	$cf::MAP{$key} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1187		2223
1188	# do it the slow way	2224	$cf::MAP{$path} || do {
1189	my $map = try_load_header $path->save_path;	2225	my $map = new_from_path cf::map $path
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2226	or return;
1207		2227
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1220		2229
1221	Coro::cede;	2230	$map->load_header
		2231	or return;
1222		2232
1223	if ($map->should_reset) {	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2234	# doing this can freeze the server in a sync job, obviously
		2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1224	$map->reset;	2238	$map->reset;
1225	undef $guard;
1226	$map = find $path	2239	return find $path;
1227	or return;
1228	}	2240	}
1229		2241
1230	$cf::MAP{$key} = $map	2242	$cf::MAP{$path} = $map
1231	}	2243	}
1232	}	2244	}
		2245
		2246	sub pre_load { }
		2247	#sub post_load { } # XS
1233		2248
1234	sub load {	2249	sub load {
1235	my ($self) = @_;	2250	my ($self) = @_;
1236		2251
		2252	local $self->{deny_reset} = 1; # loading can take a long time
		2253
1237	my $path = $self->{path};	2254	my $path = $self->{path};
		2255
		2256	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2257	my $guard = cf::lock_acquire "map_data:$path";
1239		2258
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
1241		2261
1242	$self->in_memory (cf::MAP_LOADING);
1243
1244	$self->alloc;	2262	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2263
		2264	$self->pre_load;
		2265	cf::cede_to_tick;
		2266
		2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1246	or return;	2271	or return;
1247		2272
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1249	if delete $self->{load_original};	2274	if delete $self->{load_original};
1250		2275
1251	if (my $uniq = $path->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2277	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2280	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1256	}	2285	}
1257	}
1258		2286
1259	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
1260		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1261	# now do the right thing for maps	2296	# now do the right thing for maps
1262	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2299	unless $self->difficulty;
1274	$self->activate;	2300	cf::cede_to_tick;
		2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
		2312	}
		2313
		2314	$self->post_load;
		2315
1275	}	2316	1
		2317	}
1276		2318
1277	Coro::cede;	2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
		2322	sub customise_for {
		2323	my ($self, $ob) = @_;
1278		2324
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2325	return find "~" . $ob->name . "/" . $self->{path}
		2326	if $self->per_player;
		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
		2331	$self
1280	}	2332	}
1281		2333
1282	sub find_sync {	2334	sub find_sync {
1283	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1284		2336
1285	cf::sync_job { cf::map::find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1286	}	2342	}
1287		2343
1288	sub do_load_sync {	2344	sub do_load_sync {
1289	my ($map) = @_;	2345	my ($map) = @_;
1290		2346
1291	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
		2352	}
		2353
		2354	our %MAP_PREFETCH;
		2355	our $MAP_PREFETCHER = undef;
		2356
		2357	sub find_async {
		2358	my ($path, $origin, $load) = @_;
		2359
		2360	$path = normalise $path, $origin;
		2361
		2362	if (my $map = $cf::MAP{$path}) {
		2363	return $map if !$load || $map->linkable;
		2364	}
		2365
		2366	$MAP_PREFETCH{$path} |= $load;
		2367
		2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
		2371	while (%MAP_PREFETCH) {
		2372	while (my ($k, $v) = each %MAP_PREFETCH) {
		2373	if (my $map = find $k) {
		2374	$map->load if $v;
		2375	}
		2376
		2377	delete $MAP_PREFETCH{$k};
		2378	}
		2379	}
		2380	undef $MAP_PREFETCHER;
		2381	};
		2382	$MAP_PREFETCHER->prio (6);
		2383
		2384	()
		2385	}
		2386
		2387	# common code, used by both ->save and ->swapout
		2388	sub _save {
		2389	my ($self) = @_;
		2390
		2391	$self->{last_save} = $cf::RUNTIME;
		2392
		2393	return unless $self->dirty;
		2394
		2395	my $save = $self->save_path; utf8::encode $save;
		2396	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2397
		2398	$self->{load_path} = $save;
		2399
		2400	return if $self->{deny_save};
		2401
		2402	local $self->{last_access} = $self->last_access;#d#
		2403
		2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
		2406	$_->contr->save for $self->players;
		2407	};
		2408
		2409	cf::get_slot 0.02;
		2410
		2411	if ($uniq) {
		2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2414	} else {
		2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2416	}
1292	}	2417	}
1293		2418
1294	sub save {	2419	sub save {
1295	my ($self) = @_;	2420	my ($self) = @_;
1296		2421
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2423
1299	$self->{last_save} = $cf::RUNTIME;	2424	$self->_save;
1300
1301	return unless $self->dirty;
1302
1303	my $save = $self->{path}->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1305
1306	$self->{load_path} = $save;
1307
1308	return if $self->{deny_save};
1309
1310	local $self->{last_access} = $self->last_access;#d#
1311
1312	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}
1318	}	2425	}
1319		2426
1320	sub swap_out {	2427	sub swap_out {
1321	my ($self) = @_;	2428	my ($self) = @_;
1322		2429
1323	# save first because save cedes
1324	$self->save;
1325
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1328	return if $self->players;	2434	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};
1331		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1332	$self->clear;	2445	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2446	}
1335		2447
1336	sub reset_at {	2448	sub reset_at {
1337	my ($self) = @_;	2449	my ($self) = @_;
1338		2450
1339	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1342		2453
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2456
…		…
1350	my ($self) = @_;	2461	my ($self) = @_;
1351		2462
1352	$self->reset_at <= $cf::RUNTIME	2463	$self->reset_at <= $cf::RUNTIME
1353	}	2464	}
1354		2465
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2466	sub reset {
1377	my ($self) = @_;	2467	my ($self) = @_;
1378		2468
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2470
1381	return if $self->players;	2471	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2472
1384	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
		2474
		2475	$self->state (cf::MAP_SWAPPED);
		2476
		2477	# need to save uniques path
		2478	unless ($self->{deny_save}) {
		2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2480
		2481	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2482	if $uniq;
		2483	}
1385		2484
1386	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1387		2486
		2487	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2488	$_->clear_links_to ($self) for values %cf::MAP;
		2489	$self->clear;
1389		2490
1390	$self->unlink_save;	2491	$self->unlink_save;
1391	$self->destroy;	2492	$self->destroy;
1392	}	2493	}
1393		2494
1394	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1395		2496
1396	sub nuke {	2497	sub nuke {
1397	my ($self) = @_;	2498	my ($self) = @_;
1398		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
		2503	delete $cf::MAP{$self->path};
		2504
		2505	$self->unlink_save;
		2506
		2507	bless $self, "cf::map::wrap";
		2508	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2512
		2513	$cf::MAP{$self->path} = $self;
		2514	}
		2515
1402	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
1403	}	2517	}
1404		2518
1405	sub customise_for {	2519	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2520
1408	if ($map->per_player) {	2521	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
1410	}	2527	[
1411		2528	map {
1412	$map	2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
1413	}	2535	}
1414		2536
1415	sub emergency_save {	2537	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2538
1418	warn "enter emergency map save\n";	2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
1419		2541
1420	cf::sync_job {	2542	=cut
1421	warn "begin emergency map save\n";	2543
1422	$_->save for values %cf::MAP;	2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
		2553	}
		2554
		2555	=item cf::map::unique_maps
		2556
		2557	Returns an arrayref of paths of all shared maps that have
		2558	instantiated unique items. May block.
		2559
		2560	=cut
		2561
		2562	sub unique_maps() {
		2563	[
		2564	map {
		2565	utf8::decode $_;
		2566	s/\.map$//; # TODO future compatibility hack
		2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2568	? ()
		2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
		2571	]
		2572	}
		2573
		2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
1423	};	2601	}
1424		2602
1425	warn "end emergency map save\n";	2603	\@maps
		2604	}
		2605
		2606	=back
		2607
		2608	=head3 cf::object
		2609
		2610	=cut
		2611
		2612	package cf::object;
		2613
		2614	=over 4
		2615
		2616	=item $ob->inv_recursive
		2617
		2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
		2620
		2621	=cut
		2622
		2623	sub inv_recursive_;
		2624	sub inv_recursive_ {
		2625	map { $_, inv_recursive_ $_->inv } @_
		2626	}
		2627
		2628	sub inv_recursive {
		2629	inv_recursive_ inv $_[0]
		2630	}
		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
1426	}	2658	}
1427		2659
1428	package cf;	2660	package cf;
1429		2661
1430	=back	2662	=back
1431
1432		2663
1433	=head3 cf::object::player	2664	=head3 cf::object::player
1434		2665
1435	=over 4	2666	=over 4
1436		2667
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1442		2673
1443	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1444		2689
1445	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2691	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1450		2695
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2697
1453	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1455	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1458	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1459	}	2723	}
1460		2724
1461	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1462		2726
1463	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1476		2740
1477	=item $player_object->enter_link	2741	=item $player_object->enter_link
1478		2742
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2744
1481	The player should be reaosnably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
		2749
		2750	Will never block.
1483		2751
1484	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1485		2753
1486	Moves the player out of the specila link map onto the given map. If the	2754	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2755	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2756	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2757	fails, to the emergency map position.
1490		2758
1491	Might block.	2759	Might block.
1492		2760
1493	=cut	2761	=cut
		2762
		2763	sub link_map {
		2764	unless ($LINK_MAP) {
		2765	$LINK_MAP = cf::map::find "{link}"
		2766	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2767	$LINK_MAP->load;
		2768	}
		2769
		2770	$LINK_MAP
		2771	}
1494		2772
1495	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2774	my ($self) = @_;
1497		2775
1498	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1499		2777
1500	return if $self->map == $LINK_MAP;	2778	++$self->{_link_recursion};
		2779
		2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2781
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1504		2784
1505	$self->enter_map ($LINK_MAP, 20, 20);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1506	}	2786	}
1507		2787
1508	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1510		2792
1511	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1512		2794
1513	unless ($map) {	2795	unless ($map) {
1514	# restore original map position	2796	# restore original map position
…		…
1525	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1527		2809
1528	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1531		2813
1532	$map->load;	2814	$map->load;
1533		2815
		2816	return unless $self->contr->active;
		2817
		2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2819	if ($self->enter_map ($map, $x, $y)) {
		2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2823	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}
1537
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},	2824	}
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2825
1552	# try to abort aborted map switching on player login :)	2826	}
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555		2827
1556	$pl->ob->enter_link;	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570		2829
1571	=item $player_object->goto ($path, $x, $y)	2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
1572		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
1573	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1574		2842
1575	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2854
1578	$self->enter_link;	2855	$self->enter_link;
1579		2856
1580	(async {	2857	(async {
1581	$path = new cf::path $path;	2858	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2859
1583	my $map = cf::map::find $path->as_string;	2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
		2879	my $map = eval {
		2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
1585		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2885	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
1590		2888
		2889	$map
		2890	};
		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
		2895	}
		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1592	})->prio (1);	2903	})->prio (1);
1593	}	2904	}
1594		2905
1595	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1596		2907
…		…
1598		2909
1599	sub parse_random_map_params {	2910	sub parse_random_map_params {
1600	my ($spec) = @_;	2911	my ($spec) = @_;
1601		2912
1602	my $rmp = { # defaults	2913	my $rmp = { # defaults
1603	xsize => 10,	2914	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2915	ysize => (cf::rndm 15, 40),
		2916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2917	#layout => string,
1605	};	2918	};
1606		2919
1607	for (split /\n/, $spec) {	2920	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2921	my ($k, $v) = split /\s+/, $_, 2;
1609		2922
…		…
1621	# that depends on the exit object	2934	# that depends on the exit object
1622		2935
1623	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
1624		2937
1625	if ($exit->map) {	2938	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2939	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1630	}	2945	}
1631		2946
1632	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1633		2948
1634	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
		2951	my $meta = "$RANDOMDIR/$md5.meta";
1636		2952
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
		2955	undef $fh;
		2956	aio_rename "$meta~", $meta;
1639		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1640	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1642	}	2964	}
1643	}	2965	}
1644		2966
1645	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
…		…
1648	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1649		2971
1650	$self->enter_link;	2972	$self->enter_link;
1651		2973
1652	(async {	2974	(async {
1653	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
1654	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
1655	prepare_random_map $exit	2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
1656	if $exit->slaying eq "/!";	2994	$map = $exit->slaying;
1657		2995
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2996	} elsif ($slaying eq '!up') {
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
1660		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
		3007	$self->goto ($map, $x, $y);
		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
1661	1;	3013	1
1662	}) {	3014	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1664	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	3017	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1667		3019
1668	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
1669	$self->leave_link;	3021	$self->leave_link;
1670	}	3022	}
1671	})->prio (1);	3023	})->prio (1);
1672	}	3024	}
1673		3025
…		…
1684		3036
1685	sub cf::client::send_drawinfo {	3037	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	3038	my ($self, $text, $flags) = @_;
1687		3039
1688	utf8::encode $text;	3040	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	3042	}
1691		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
		3231	=item $client->ext_msg ($type, @msg)
		3232
		3233	Sends an ext event to the client.
		3234
		3235	=cut
		3236
		3237	sub cf::client::ext_msg($$@) {
		3238	my ($self, $type, @msg) = @_;
		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
		3243	push @msg, msgtype => "event_$type";
		3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3260	}
1692		3261
1693	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
1694		3263
1695	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		3267
1699	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	3269	become reliable at some point in the future.
1701		3270
1702	=cut	3271	=cut
1703		3272
1704	sub cf::client::query {	3273	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	3282	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		3284
1716	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
1718	}	3289	}
1719		3290
1720	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
1721	on_reply => sub {	3297	on_reply => sub {
1722	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
1723		3299
1724	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
1725	# get handled first	3301	# get handled first
1726	my $queue = delete $ns->{query_queue}	3302	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	3303	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		3304
1729	(shift @$queue)->[1]->($msg);	3305	(shift @$queue)->[1]->($msg);
		3306	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		3307
1731	push @{ $ns->{query_queue} }, @$queue;	3308	push @{ $ns->{query_queue} }, @$queue;
1732		3309
1733	if (@{ $ns->{query_queue} } == @$queue) {	3310	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	3311	if (@$queue) {
…		…
1736	} else {	3313	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	3315	}
1739	}	3316	}
1740	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
1741	);	3341	);
1742		3342
1743	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
1744		3344
1745	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
1761		3361
1762	$coro	3362	$coro
1763	}	3363	}
1764		3364
1765	cf::client->attach (	3365	cf::client->attach (
1766	on_destroy => sub {	3366	on_client_destroy => sub {
1767	my ($ns) = @_;	3367	my ($ns) = @_;
1768		3368
1769	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1770	},	3370	},
1771	);	3371	);
…		…
1786	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
1788		3388
1789	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
1790		3390
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
1792		3396
1793	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
1794		3398
1795	=pod	3399	=pod
1796		3400
1797	The following fucntions and emthods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
1798		3402
1799	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
1800	cf::object::player player	3408	cf::object::player
1801	cf::player peaceful	3409	player
1802	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
1803		3416
1804	=cut	3417	=cut
1805		3418
1806	for (	3419	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
1808	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
1810	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
1811	) {	3426	) {
1812	no strict 'refs';
1813	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
1814	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1815	for @funs;	3429	for @funs;
1816	}	3430	}
1817		3431
…		…
1832		3446
1833	my $qcode = $code;	3447	my $qcode = $code;
1834	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1835	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
1836		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
1837	local $_;	3454	local $_;
1838	local @safe::cf::_safe_eval_args = values %vars;
1839		3455
1840	my $eval =	3456	my $eval =
1841	"do {\n"	3457	"do {\n"
1842	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1843	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
1844	. $code	3460	. $code
1845	. "\n}"	3461	. "\n}"
1846	;	3462	;
1847		3463
		3464	if ($CFG{safe_eval}) {
1848	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
1849	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1850	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
1851		3473
1852	if ($@) {	3474	if ($@) {
1853	warn "$@";	3475	warn "$@",
1854	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
1855	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
1856	}	3478	}
1857		3479
1858	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
1859	}	3481	}
1860		3482
…		…
1874	=cut	3496	=cut
1875		3497
1876	sub register_script_function {	3498	sub register_script_function {
1877	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
1878		3500
1879	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
1880	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
1881	}	3503	}
1882		3504
1883	=back	3505	=back
1884		3506
1885	=cut	3507	=cut
1886		3508
1887	#############################################################################	3509	#############################################################################
		3510	# the server's init and main functions
1888		3511
1889	=head2 EXTENSION DATABASE SUPPORT	3512	our %FACEHASH; # hash => idx, #d# HACK for http server
1890		3513
1891	Crossfire maintains a very simple database for extension use. It can	3514	sub load_facedata($) {
1892	currently store anything that can be serialised using Storable, which	3515	my ($path) = @_;
1893	excludes objects.
1894		3516
1895	The parameter C<$family> should best start with the name of the extension	3517	# HACK to clear player env face cache, we need some signal framework
1896	using it, it should be unique.	3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
1897		3520
1898	=over 4	3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1899		3522
1900	=item $hashref = cf::db_get $family	3523	trace "loading facedata from $path\n";
1901		3524
1902	Return a hashref for use by the extension C<$family>, which can be	3525	my $facedata = decode_storable load_file $path;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3526
1906	=item $value = cf::db_get $family => $key	3527	$facedata->{version} == 2
		3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3529
1908	Returns a single value from the database	3530	# patch in the exptable
1909		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1910	=item cf::db_put $family => $hashref	3532	$facedata->{resource}{"res/exp_table"} = {
1911		3533	type => FT_RSRC,
1912	Stores the given family hashref into the database. Updates are delayed, if	3534	data => $exp_table,
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3535	hash => (cf::face::mangle_chksum Digest::MD5::md5 $exp_table),
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3536	};
		3537	cf::cede_to_tick;
1961		3538
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3539	{
		3540	my $faces = $facedata->{faceinfo};
1966		3541
1967	sub db_get($;$) {	3542	for my $face (sort keys %$faces) {
1968	@_ >= 2	3543	my $info = $faces->{$face};
1969	? $DB->{$_[0]}{$_[1]}	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3545
1973	sub db_put($$;$) {	3546	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3547	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1976	} else {	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1977	$DB->{$_[0]} = $_[1];	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1978	}	3551	$FACEHASH{$info->{hash64}} = $idx;#d#
1979	db_dirty;
1980	}
1981		3552
1982	cf::global->attach (	3553	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3554	}
1987	);
1988	}
1989		3555
1990	#############################################################################	3556	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3557	next unless $info->{smooth};
1992		3558
1993	sub cfg_load {	3559	my $idx = cf::face::find $face
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3560	or next;
1995	or return;
1996		3561
1997	local $/;	3562	if (my $smooth = cf::face::find $info->{smooth}) {
1998	*CFG = YAML::Syck::Load <$fh>;	3563	cf::face::set_smooth $idx, $smooth;
		3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3565	} else {
		3566	error "smooth face '$info->{smooth}' not found for face '$face'";
		3567	}
1999		3568
		3569	cf::cede_to_tick;
		3570	}
		3571	}
		3572
		3573	{
		3574	my $anims = $facedata->{animinfo};
		3575
		3576	while (my ($anim, $info) = each %$anims) {
		3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3578	cf::cede_to_tick;
		3579	}
		3580
		3581	cf::anim::invalidate_all; # d'oh
		3582	}
		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
		3606	1
		3607	}
		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
		3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
		3632	load_resource_file "$MAPDIR/regions"
		3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
		3639	}
		3640
		3641	sub reload_facedata {
		3642	load_facedata "$DATADIR/facedata"
		3643	or die "unable to load facedata\n";
		3644	}
		3645
		3646	sub reload_archetypes {
		3647	load_resource_file "$DATADIR/archetypes"
		3648	or die "unable to load archetypes\n";
		3649	}
		3650
		3651	sub reload_treasures {
		3652	load_resource_file "$DATADIR/treasures"
		3653	or die "unable to load treasurelists\n";
		3654	}
		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
		3676	sub reload_resources {
		3677	trace "reloading resource files...\n";
		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
		3684	reload_regions;
		3685	reload_treasures;
		3686
		3687	trace "finished reloading resource files\n";
		3688	}
		3689
		3690	sub reload_config {
		3691	trace "reloading config file...\n";
		3692
		3693	my $config = load_file "$CONFDIR/config";
		3694	utf8::decode $config;
		3695	*CFG = decode_yaml $config;
		3696
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2001		3698
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3701
2005	if (exists $CFG{mlockall}) {	3702	if (exists $CFG{mlockall}) {
2006	eval {	3703	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3704	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3705	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3706	};
2010	warn $@ if $@;	3707	warn $@ if $@;
2011	}	3708	}
2012	}	3709	}
2013		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
2014	sub main {	3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
2015	# we must not ever block the main coroutine	3749	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3750	$Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3752	(async {
		3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
		3755	})->prio (Coro::PRIO_MAX);
2019	};	3756	};
2020		3757
2021	cfg_load;	3758	evthread_start IO::AIO::poll_fileno;
2022	db_load;	3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
		3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
2023	load_extensions;	3781	load_extensions;
2024	Event::loop;	3782
		3783	utime time, time, $RUNTIMEFILE;
		3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
2025	}	3800	}
2026		3801
2027	#############################################################################	3802	#############################################################################
2028	# initialisation	3803	# initialisation and cleanup
2029		3804
		3805	# install some emergency cleanup handlers
		3806	BEGIN {
		3807	our %SIGWATCHER = ();
		3808	for my $signal (qw(INT HUP TERM)) {
		3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3810	cf::cleanup "SIG$signal";
		3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3826	or return;
		3827
		3828	my $value = $cf::RUNTIME + 90 + 10;
		3829	# 10 is the runtime save interval, for a monotonic clock
		3830	# 60 allows for the watchdog to kill the server.
		3831
		3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3833	and return;
		3834
		3835	# always fsync - this file is important
		3836	aio_fsync $fh
		3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
		3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
		3901	}
		3902
		3903	sub emergency_save() {
		3904	my $freeze_guard = cf::freeze_mainloop;
		3905
		3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
		3912
		3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
		3916	# use a peculiar iteration method to avoid tripping on perl
		3917	# refcount bugs in for. also avoids problems with players
		3918	# and maps saved/destroyed asynchronously.
		3919	info "emergency_perl_save: begin player save\n";
		3920	for my $login (keys %cf::PLAYER) {
		3921	my $pl = $cf::PLAYER{$login} or next;
		3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3924	$pl->save;
		3925	}
		3926	info "emergency_perl_save: end player save\n";
		3927
		3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
		3931	for my $path (keys %cf::MAP) {
		3932	my $map = $cf::MAP{$path} or next;
		3933	$map->valid or next;
		3934	$map->save;
		3935	}
		3936	info "emergency_perl_save: end map save\n";
		3937
		3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
		3941	BDB::db_env_txn_checkpoint $DB_ENV;
		3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
		3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
		3966	};
		3967
		3968	info "emergency_perl_save: leave\n";
		3969	}
		3970
		3971	sub post_cleanup {
		3972	my ($make_core) = @_;
		3973
		3974	IO::AIO::flush;
		3975
		3976	error Carp::longmess "post_cleanup backtrace"
		3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
		4006	}
		4007
2030	sub reload() {	4008	sub do_reload_perl() {
2031	# can/must only be called in main	4009	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
2033	warn "can only reload from main coroutine\n";	4011	error "can only reload from main coroutine";
2034	return;	4012	return;
2035	}	4013	}
2036		4014
2037	warn "reloading...";	4015	return if $RELOAD++;
2038		4016
2039	my $guard = freeze_mainloop;	4017	my $t1 = AE::time;
		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
		4025	cf::sync_job {
2040	cf::emergency_save;	4026	#cf::emergency_save;
2041		4027
2042	eval {	4028	trace "perl_reload: cancelling all extension coros";
2043	# if anything goes wrong in here, we should simply crash as we already saved
2044
2045	# cancel all watchers
2046	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}
2049
2050	# cancel all extension coros
2051	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	4030	%EXT_CORO = ();
2053		4031
2054	# unload all extensions	4032	trace "perl_reload: removing commands";
2055	for (@exts) {	4033	%COMMAND = ();
2056	warn "unloading <$_>";
2057	unload_extension $_;
2058	}
2059		4034
2060	# unload all modules loaded from $LIBDIR	4035	trace "perl_reload: removing ext/exti commands";
2061	while (my ($k, $v) = each %INC) {	4036	%EXTCMD = ();
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4037	%EXTICMD = ();
2063		4038
2064	warn "removing <$k>";	4039	trace "perl_reload: unloading/nuking all extensions";
2065	delete $INC{$k};	4040	for my $pkg (@EXTS) {
		4041	trace "... unloading $pkg";
2066		4042
2067	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;
2069
2070	if (my $cb = $k->can ("unload_module")) {	4043	if (my $cb = $pkg->can ("unload")) {
		4044	eval {
2071	$cb->();	4045	$cb->($pkg);
		4046	1
		4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
2072	}	4052	}
2073		4053
2074	Symbol::delete_package $k;	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4055	while (my ($k, $v) = each %INC) {
		4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4057
		4058	trace "... unloading $k";
		4059	delete $INC{$k};
		4060
		4061	$k =~ s/\.pm$//;
		4062	$k =~ s/\//::/g;
		4063
		4064	if (my $cb = $k->can ("unload_module")) {
		4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
2075	}	4069	}
2076		4070
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	4071	trace "perl_reload: getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		4074
2085	# remove register_script_function callbacks	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
2086	# TODO
2087
2088	# unload cf.pm "a bit"
2089	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
		4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2090		4078
2091	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
2092	# and global variables created in xs	4080	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
2094		4082
2095	# reload cf.pm	4083	info "perl_reload: unload completed, starting to reload now";
2096	warn "reloading cf.pm";	4084
		4085	trace "perl_reload: reloading cf.pm";
2097	require cf;	4086	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
2099		4088
2100	# load config and database again	4089	trace "perl_reload: loading config and database again";
2101	cf::cfg_load;	4090	cf::reload_config;
2102	cf::db_load;
2103		4091
2104	# load extensions	4092	trace "perl_reload: loading extensions";
2105	warn "load extensions";
2106	cf::load_extensions;	4093	cf::load_extensions;
2107		4094
2108	# reattach attachments to objects	4095	if ($REATTACH_ON_RELOAD) {
2109	warn "reattach";	4096	trace "perl_reload: reattaching attachments to objects/players";
2110	_global_reattach;	4097	_global_reattach; # objects, sockets
		4098	trace "perl_reload: reattaching attachments to maps";
		4099	reattach $_ for values %MAP;
		4100	trace "perl_reload: reattaching attachments to players";
		4101	reattach $_ for values %PLAYER;
		4102	}
		4103
		4104	cf::_post_init 1;
		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
		4108	1
		4109	} or do {
		4110	error $@;
		4111	cf::cleanup "perl_reload: error, exiting.";
		4112	};
		4113
		4114	--$RELOAD;
		4115	}
		4116
		4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
		4119	};
		4120
		4121	our $RELOAD_WATCHER; # used only during reload
		4122
		4123	sub reload_perl() {
		4124	# doing reload synchronously and two reloads happen back-to-back,
		4125	# coro crashes during coro_state_free->destroy here.
		4126
		4127	$RELOAD_WATCHER ||= cf::async {
		4128	Coro::AIO::aio_wait cache_extensions;
		4129
		4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4131	do_reload_perl;
		4132	undef $RELOAD_WATCHER;
		4133	};
2111	};	4134	};
2112
2113	if ($@) {
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};
2121
2122	#############################################################################
2123
2124	unless ($LINK_MAP) {
2125	$LINK_MAP = cf::map::new;
2126
2127	$LINK_MAP->width (41);
2128	$LINK_MAP->height (41);
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	4135	}
2164
2165	register "<global>", __PACKAGE__;
2166		4136
2167	register_command "reload" => sub {	4137	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
2169		4139
2170	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
		4144	reload_perl;
		4145	};
2174	}	4146	}
2175	};	4147	};
2176		4148
2177	unshift @INC, $LIBDIR;	4149	#############################################################################
2178		4150
2179	$TICK_WATCHER = Event->timer (	4151	my $bug_warning = 0;
2180	reentrant => 0,
2181	prio => 0,
2182	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,
2184	cb => sub {
2185	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		4152
2189	# if we are delayed by four ticks or more, skip them all	4153	sub wait_for_tick() {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2191		4155
2192	$TICK_WATCHER->at ($NEXT_TICK);	4156	$WAIT_FOR_TICK->wait;
2193	$TICK_WATCHER->start;	4157	}
		4158
		4159	sub wait_for_tick_begin() {
		4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4161
		4162	my $signal = new Coro::Signal;
		4163	push @WAIT_FOR_TICK_BEGIN, $signal;
		4164	$signal->wait;
		4165	}
		4166
		4167	sub tick {
		4168	if ($Coro::current != $Coro::main) {
		4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4170	unless ++$bug_warning > 10;
		4171	return;
2194	},	4172	}
2195	);
2196		4173
2197	IO::AIO::max_poll_time $TICK * 0.2;	4174	cf::one_tick; # one server iteration
2198		4175
2199	Event->io (	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206		4177
2207	Event->timer (	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2208	data => WF_AUTOCANCEL,	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2209	after => 0,	4180	Coro::async_pool {
2210	interval => 10,	4181	$Coro::current->{desc} = "runtime saver";
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	4182	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	4183	or error "ERROR: unable to write runtime file: $!";
2215	})->();	4184	};
2216	},	4185	}
2217	);	4186
		4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4188	$sig->send;
		4189	}
		4190	$WAIT_FOR_TICK->broadcast;
		4191
		4192	$LOAD = ($NOW - $TICK_START) / $TICK;
		4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4194
		4195	if (0) {
		4196	if ($NEXT_TICK) {
		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
		4201	}
		4202	}
		4203
		4204	{
		4205	# configure BDB
		4206
		4207	BDB::min_parallel 16;
		4208	BDB::max_poll_reqs $TICK * 0.1;
		4209	#$AnyEvent::BDB::WATCHER->priority (1);
		4210
		4211	unless ($DB_ENV) {
		4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4218
		4219	cf::sync_job {
		4220	eval {
		4221	BDB::db_env_open
		4222	$DB_ENV,
		4223	$BDBDIR,
		4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4226	0666;
		4227
		4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4229	};
		4230
		4231	cf::cleanup "db_env_open(db): $@" if $@;
		4232	};
		4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
		4244	}
		4245
		4246	{
		4247	# configure IO::AIO
		4248
		4249	IO::AIO::min_parallel 8;
		4250	IO::AIO::max_poll_time $TICK * 0.1;
		4251	undef $AnyEvent::AIO::WATCHER;
		4252	}
		4253
		4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
		4256
		4257	sub _log_backtrace {
		4258	my ($msg, @addr) = @_;
		4259
		4260	$msg =~ s/\n$//;
		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4265	# limit the # of concurrent backtraces
		4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
		4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
		4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
		4273	my @bt = fork_call {
		4274	@addr = map { sprintf "%x", $_ } @addr;
		4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4277	or die "addr2line: $!";
		4278
		4279	my @funcs;
		4280	my @res = <$fh>;
		4281	chomp for @res;
		4282	while (@res) {
		4283	my ($func, $line) = splice @res, 0, 2, ();
		4284	push @funcs, "[$func] $line";
		4285	}
		4286
		4287	@funcs
		4288	};
		4289
		4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4292	LOG llevInfo, "[ABT] $_\n" for @bt;
		4293	--$_log_backtrace;
		4294	};
		4295	} else {
		4296	LOG llevInfo, "[ABT] $msg\n";
		4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4298	}
		4299	}
		4300
		4301	# load additional modules
		4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
2218		4304
2219	END { cf::emergency_save }	4305	END { cf::emergency_save }
2220		4306
2221	1	4307	1
2222		4308

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