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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.235 by root, Tue Apr 10 09:35:23 2007 UTC vs.
Revision 1.600 by root, Sun Nov 11 04:31:57 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;
9	use Event;	30	use EV;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
13		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
14	use Coro 3.52 ();	41	use Coro ();
15	use Coro::State;	42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
16	use Coro::Event;	45	use Coro::AnyEvent;
17	use Coro::Timer;	46	use Coro::Timer;
18	use Coro::Signal;	47	use Coro::Signal;
19	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
20	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
21		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
22	use BDB ();	58	use BDB ();
23	use Data::Dumper;	59	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	60	use Fcntl;
26	use YAML::Syck ();	61	use YAML::XS ();
27	use IO::AIO 2.32 ();	62	use IO::AIO ();
28	use Time::HiRes;
29	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
30		67
31	# configure various modules to our taste	68	# configure various modules to our taste
32	#	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		78
36	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
37		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		81
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
44		85
45	our %COMMAND = ();	86	our %COMMAND = ();
46	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
47		88
48	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
52		96
53	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	98	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
56		101
57	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	103
59	our $AIO_POLL_WATCHER;	104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
62	our $NOW;	144	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off
64		145
65	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
66	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
67
68	our %CFG;
69
70	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;
72
73	our %PLAYER; # all users
74	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		149
82	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
85	binmode STDOUT;	166	binmode STDOUT;
86	binmode STDERR;	167	binmode STDERR;
87		168
88	# read virtual server time, if available	169	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
93	}	174	}
94		175
95	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	177
97	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		180
102	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
103		182
104	sub cf::map::normalise;	183	sub cf::map::normalise;
105		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
106	#############################################################################	189	#############################################################################
107		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
108	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
109		203
110	=over 4	204	=over 4
111		205
112	=item $cf::UPTIME	206	=item $cf::UPTIME
113		207
114	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
115		224
116	=item $cf::RUNTIME	225	=item $cf::RUNTIME
117		226
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	228	every server tick.
120		229
121	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		233
123	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
125		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
126	=item $cf::NOW	245	=item $cf::LOAD
127		246
128	The time of the last (current) server tick.	247	The raw value load value from the last tick.
129
130	=item $cf::TICK
131
132	The interval between server ticks, in seconds.
133		248
134	=item %cf::CFG	249	=item %cf::CFG
135		250
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	252	from wherever your confdir points to.
138		253
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		255
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
143	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
144	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
145		289
146	=back	290	=back
147		291
148	=cut	292	=cut
149		293
150	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
151	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
152	my $msg = join "", @_;	301	my $msg = join "", @_;
153	utf8::encode $msg;
154		302
155	$msg .= "\n"	303	$msg .= "\n"
156	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
157		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
158	LOG llevError, $msg;	308	LOG llevWarn, $msg;
159	};	309	};
160	}	310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
161		324
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		332
169	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	334	# within the Safe compartment.
171	for my $pkg (qw(	335	for my $pkg (qw(
172	cf::global cf::attachable	336	cf::global cf::attachable
173	cf::object cf::object::player	337	cf::object cf::object::player
174	cf::client cf::player	338	cf::client cf::player
175	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
176	cf::map cf::party cf::region	341	cf::party cf::region
177	)) {	342	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	344	}
181		345
182	$Event::DIED = sub {	346	$EV::DIED = sub {
183	warn "error in event callback: @_";	347	warn "error in event callback: $@";
184	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
185		356
186	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
187		358
188	=over 4	359	=over 4
189		360
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	380	$d
210	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
211	}	382	}
212		383
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
214		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
215	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
216		437
217	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
218		439
219	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
220		441
221	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
222		443
		444	=cut
		445
		446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		447
		448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
		511	}
		512
223	=item cf::lock_wait $string	513	=item cf::lock_wait $string
224		514
225	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
226		516
227	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
228		518
229	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
231	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
232	returned.	522	returned.
233		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
234	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
236		529
237	=cut	530	=item $locked = cf::lock_active $string
238		531
239	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
240		537
241	sub lock_wait($) {	538	sub lock_wait($) {
242	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	540	}
250		541
251	sub lock_acquire($) {	542	sub lock_acquire($) {
252	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
253		545
254	# wait, to be sure we are not locked	546	sub lock_active($) {
255	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	548	}
264		549
265	sub freeze_mainloop {	550	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
267		552
268	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
269	$TICK_WATCHER->start;	554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
270	};	623	}
271	$TICK_WATCHER->stop;	624	};
272	$guard	625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
273	}	639	}
274		640
275	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
276		642
277	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		648
283	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
284		650
285	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
286		652
287	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
290		657
291	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
294	fast or be very important.	661	fast or be very important.
…		…
296	=cut	663	=cut
297		664
298	sub sync_job(&) {	665	sub sync_job(&) {
299	my ($job) = @_;	666	my ($job) = @_;
300		667
301	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
302	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
304		673
305	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	675
307	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
308		677
309	my $busy = 1;	678	my $busy = 1;
310	my @res;	679	my @res;
311		680
312	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	683	@res = eval { $job->() };
314	warn $@ if $@;	684	error $@ if $@;
315	undef $busy;	685	undef $busy;
316	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
317		687
318	while ($busy) {	688	while ($busy) {
319	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
320	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
321		699
322	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
323	} else {	701	} else {
324	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
325		703
…		…
345	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
346		724
347	$coro	725	$coro
348	}	726	}
349		727
350	sub write_runtime {	728	=item fork_call { }, @args
351	my $guard = cf::lock_acquire "write_runtime";
352		729
353	my $runtime = cf::localdir . "/runtime";	730	Executes the given code block with the given arguments in a seperate
		731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
354		734
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
356	or return;
357		736
358	my $value = $cf::RUNTIME + 90 + 10;	737	sub post_fork {
359	# 10 is the runtime save interval, for a monotonic clock	738	reset_signals;
360	# 60 allows for the watchdog to kill the server.	739	}
361		740
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	741	sub fork_call(&@) {
363	and return;	742	my ($cb, @args) = @_;
364		743
365	# always fsync - this file is important	744	# we seemingly have to make a local copy of the whole thing,
366	aio_fsync $fh	745	# otherwise perl prematurely frees the stuff :/
367	and return;	746	# TODO: investigate and fix (likely this will be rather laborious)
368		747
369	close $fh	748	my @res = Coro::Util::fork_eval {
370	or return;	749	cf::post_fork;
		750	&$cb
		751	} @args;
371		752
372	aio_rename "$runtime~", $runtime	753	wantarray ? @res : $res[-1]
373	and return;	754	}
374		755
		756	sub objinfo {
375	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = EV::time;
		907	my $data = $process->(\@data);
		908	my $t2 = EV::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
376	}	920	}
377		921
378	=item cf::datalog type => key => value, ...	922	=item cf::datalog type => key => value, ...
379		923
380	Log a datalog packet of the given type with the given key-value pairs.	924	Log a datalog packet of the given type with the given key-value pairs.
381		925
382	=cut	926	=cut
383		927
384	sub datalog($@) {	928	sub datalog($@) {
385	my ($type, %kv) = @_;	929	my ($type, %kv) = @_;
386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	931	}
388		932
389	=back	933	=back
390		934
391	=cut	935	=cut
392		936
393	#############################################################################	937	#############################################################################
394		938
395	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
396		940
397	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
400		944
401	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	947	Deliantra).
404		948
405	=over 4	949	=over 4
406		950
407	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
408		952
…		…
452	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
453		997
454	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
456		1000
457	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
459		1003
460	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
461		1005
462	=over 4	1006	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
572		1116
573	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		1121
578	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
580		1124
581	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
586		1130
587	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
588	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
589		1133
590	} elsif (ref $type) {	1134	} elsif (ref $type) {
591	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
592		1136
593	} else {	1137	} else {
594	shift @arg;	1138	shift @arg;
595	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
596	}	1140	}
597	}	1141	}
598	}	1142	}
599		1143
600	sub _object_attach {	1144	sub _object_attach {
…		…
610	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
611	}	1155	}
612		1156
613	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
614	} else {	1158	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
616	}	1160	}
617		1161
618	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
619	}	1163	}
620		1164
…		…
622	if (ref $_[0]) {	1166	if (ref $_[0]) {
623	_object_attach @_;	1167	_object_attach @_;
624	} else {	1168	} else {
625	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
626	}	1170	}
		1171	_recalc_want;
627	};	1172	};
628		1173
629	# all those should be optimised	1174	# all those should be optimised
630	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1180	reattach ($obj);
636	} else {	1181	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
638	}	1183	}
		1184	_recalc_want;
639	};	1185	};
640		1186
641	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
643		1189
…		…
658	";	1204	";
659	die if $@;	1205	die if $@;
660	}	1206	}
661		1207
662	our $override;	1208	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1210
665	sub override {	1211	sub override {
666	$override = 1;	1212	$override = 1;
667	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
668	}	1214	}
669		1215
670	sub do_invoke {	1216	sub do_invoke {
671	my $event = shift;	1217	my $event = shift;
672	my $callbacks = shift;	1218	my $callbacks = shift;
673		1219
674	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
675		1221
676	local $override;	1222	local $override;
677		1223
678	for (@$callbacks) {	1224	for (@$callbacks) {
679	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
680		1226
681	if ($@) {	1227	if ($@) {
682	warn "$@";
683	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
684	override;	1229	override;
685	}	1230	}
686		1231
687	return 1 if $override;	1232	return 1 if $override;
688	}	1233	}
689		1234
690	0	1235	0
691	}	1236	}
692		1237
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1239
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1241
697	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
698		1243
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1247
703	=back	1248	=back
704		1249
705	=cut	1250	=cut
706		1251
707	#############################################################################	1252	#############################################################################
708	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
709		1296
710	sub reattach {	1297	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1299	my ($obj) = @_;
713		1300
		1301	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1303
716	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
717		1305
718	@$registry = ();	1306	@$registry = ();
719		1307
…		…
724	for (@$attach) {	1312	for (@$attach) {
725	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
726	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
727	}	1315	}
728	} else {	1316	} else {
729	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
730	}	1318	}
731	}	1319	}
732	}	1320	}
733		1321
734	cf::attachable->attach (	1322	cf::attachable->attach (
735	prio => -1000000,	1323	prio => -1000000,
736	on_instantiate => sub {	1324	on_instantiate => sub {
737	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
738		1326
739	$data = from_json $data;	1327	$data = decode_json $data;
740		1328
741	for (@$data) {	1329	for (@$data) {
742	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
743		1331
744	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1348	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
762		1350
763	sync_job {	1351	sync_job {
764	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
767		1357
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1361	if ($cf::USE_FSYNC) {
		1362	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;
		1363	aio_fsync $fh;
		1364	}
772	close $fh;	1365	aio_close $fh;
773		1366
774	if (@$objs) {	1367	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1372	if ($cf::USE_FSYNC) {
		1373	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;
		1374	aio_fsync $fh;
		1375	}
780	close $fh;	1376	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
782	}	1378	}
783	} else {	1379	} else {
784	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
785	}	1381	}
786		1382
787	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1387	} else {
789	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
790	}	1389	}
791	} else {	1390	} else {
792	aio_unlink $filename;	1391	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
794	}	1393	}
795	}	1394	};
796	}	1395	}
797		1396
798	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
800		1399
…		…
812	or return;	1411	or return;
813		1412
814	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
816	or return;	1415	or return;
		1416
817	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
818	}	1419	}
819		1420
		1421	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
822	return ($data, $av);	1426	($data, $av)
823	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
824		1434
825	#############################################################################	1435	#############################################################################
826	# command handling &c	1436	# command handling &c
827		1437
828	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
829		1439
830	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
831	$name.	1441	$name.
832		1442
833	=cut	1443	=cut
…		…
839	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
840		1450
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1452	}
843		1453
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
845		1455
846	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
847		1461
848	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
849	called.
850		1463
851	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
852		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
853	sub register_extcmd {	1486	sub register_extcmd($$) {
854	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
855		1488
856	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
857	}	1490	}
858		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
859	cf::player->attach (	1512	cf::player->attach (
860	on_command => sub {	1513	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
862		1515
863	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
864	or return;	1517	or return;
865		1518
…		…
870	cf::override;	1523	cf::override;
871	},	1524	},
872	on_extcmd => sub {	1525	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
874		1527
875	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1529
877	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
880	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
881	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
882	}	1551	}
		1552
883	} else {	1553	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1555	}
886		1556
887	cf::override;	1557	cf::override;
888	},	1558	},
889	);	1559	);
890		1560
		1561	# "readahead" all extensions
891	sub load_extension {	1562	sub cache_extensions {
892	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
893		1564
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1568	}
919	die $@;
920	}	1569	};
921		1570
922	push @EXTS, $pkg;	1571	$grp
		1572	}
		1573
		1574	sub _ext_cfg_reg($$$$) {
		1575	my ($rvar, $varname, $cfgname, $default) = @_;
		1576
		1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
923	}	1583	}
924		1584
925	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
926	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1594	next unless -r $path;
928	eval {	1595
929	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
930	1	1668	}
931	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
932	}	1681	};
933	}	1682	}
934		1683
935	#############################################################################	1684	#############################################################################
936		1685
		1686	=back
		1687
937	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
938		1689
939	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
940		1691
941	=cut	1692	=cut
942		1693
943	package cf::player;	1694	package cf::player;
944		1695
…		…
946		1697
947	=head3 cf::player	1698	=head3 cf::player
948		1699
949	=over 4	1700	=over 4
950		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
951	=item cf::player::find $login	1716	=item cf::player::find $login
952		1717
953	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
954		1719
955	=cut	1720	=cut
956		1721
957	sub playerdir($) {	1722	sub playerdir($) {
958	cf::localdir	1723	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1725	}
964		1726
965	sub path($) {	1727	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
976		1738
977	sub exists($) {	1739	sub exists($) {
978	my ($login) = @_;	1740	my ($login) = @_;
979		1741
980	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1743	or !aio_stat path $login
982	}	1744	}
983		1745
984	sub find($) {	1746	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1748	my $login = $_[0];
…		…
993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
995	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
996	aio_unlink +(playerdir $login) . "/$login.pl";	1758	aio_unlink +(playerdir $login) . "/$login.pl";
997		1759
998	my $pl = load_pl path $login	1760	my $f = new_from_file cf::object::thawer path $login
999	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1000	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1001	}	1769	}
1002	}	1770	}
1003	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1004		1785
1005	sub save($) {	1786	sub save($) {
1006	my ($pl) = @_;	1787	my ($pl) = @_;
1007		1788
1008	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1013	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1014		1795
1015	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1016	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1017		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1018	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1019	Coro::cede;	1805	cf::cede_to_tick;
1020	}	1806	}
1021		1807
1022	sub new($) {	1808	sub new($) {
1023	my ($login) = @_;	1809	my ($login) = @_;
1024		1810
…		…
1030	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1031		1817
1032	$self	1818	$self
1033	}	1819	}
1034		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1035	=item $pl->quit_character	1831	=item $pl->quit_character
1036		1832
1037	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1038	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1039		1835
…		…
1043	my ($pl) = @_;	1839	my ($pl) = @_;
1044		1840
1045	my $name = $pl->ob->name;	1841	my $name = $pl->ob->name;
1046		1842
1047	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1048	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1049		1845
1050	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1051	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1052	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1053	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1054		1854
1055	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1056	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1057	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
…		…
1086	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1087		1887
1088	=cut	1888	=cut
1089		1889
1090	sub list_logins {	1890	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1892	or return [];
1093		1893
1094	my @logins;	1894	my @logins;
1095		1895
1096	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1098	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1099	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1100		1906
1101	utf8::decode $login;	1907	utf8::decode $login;
1102	push @logins, $login;	1908	push @logins, $login;
1103	}	1909	}
1104		1910
1105	\@logins	1911	\@logins
1106	}	1912	}
1107		1913
1108	=item $player->maps	1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
1109		1917
1110	Returns an arrayref of map paths that are private for this	1918	Returns an arrayref of map paths that are private for this
1111	player. May block.	1919	player. May block.
1112		1920
1113	=cut	1921	=cut
…		…
1131	}	1939	}
1132		1940
1133	\@paths	1941	\@paths
1134	}	1942	}
1135		1943
1136	=item $player->ext_reply ($msgid, %msg)	1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1137		1945
1138	Sends an ext reply to the player.	1946	Expand deliantra pod fragments into protocol xml.
1139		1947
1140	=cut
1141
1142	sub ext_reply($$%) {
1143	my ($self, $id, %msg) = @_;
1144
1145	$msg{msgid} = $id;
1146
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}
1149
1150	=item $player->ext_event ($type, %msg)	1948	=item $player->ext_msg ($type, @msg)
1151		1949
1152	Sends an ext event to the client.	1950	Sends an ext event to the client.
1153		1951
1154	=cut	1952	=cut
1155		1953
1156	sub ext_event($$%) {	1954	sub ext_msg($$@) {
1157	my ($self, $type, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1158		1956
1159	$self->ns->ext_event ($type, %msg);	1957	$self->ns->ext_msg ($type, @msg);
1160	}	1958	}
1161		1959
1162	package cf;	1960	=head3 cf::region
		1961
		1962	=over 4
		1963
		1964	=cut
		1965
		1966	package cf::region;
		1967
		1968	=item cf::region::find_by_path $path
		1969
		1970	Tries to decuce the likely region for a map knowing only its path.
		1971
		1972	=cut
		1973
		1974	sub find_by_path($) {
		1975	my ($path) = @_;
		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
		1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
		1989	}
1163		1990
1164	=back	1991	=back
1165
1166		1992
1167	=head3 cf::map	1993	=head3 cf::map
1168		1994
1169	=over 4	1995	=over 4
1170		1996
…		…
1182	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1183	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1184		2010
1185	sub generate_random_map {	2011	sub generate_random_map {
1186	my ($self, $rmp) = @_;	2012	my ($self, $rmp) = @_;
1187	# mit "rum" bekleckern, nicht	2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
1188	$self->_create_random_map (	2016	$self->_create_random_map ($rmp);
1189	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1190	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1191	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1192	$rmp->{exit_on_final_map},
1193	$rmp->{xsize}, $rmp->{ysize},
1194	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1195	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1196	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1197	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1198	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1199	(cf::region::find $rmp->{region}), $rmp->{custom}
1200	)
1201	}	2017	}
1202		2018
1203	=item cf::map->register ($regex, $prio)	2019	=item cf::map->register ($regex, $prio)
1204		2020
1205	Register a handler for the map path matching the given regex at the	2021	Register a handler for the map path matching the given regex at the
…		…
1210		2026
1211	sub register {	2027	sub register {
1212	my (undef, $regex, $prio) = @_;	2028	my (undef, $regex, $prio) = @_;
1213	my $pkg = caller;	2029	my $pkg = caller;
1214		2030
1215	no strict;
1216	push @{"$pkg\::ISA"}, __PACKAGE__;	2031	push @{"$pkg\::ISA"}, __PACKAGE__;
1217		2032
1218	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1219	}	2034	}
1220		2035
1221	# also paths starting with '/'	2036	# also paths starting with '/'
1222	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1223		2038
1224	sub thawer_merge {	2039	sub thawer_merge {
1225	my ($self, $merge) = @_;	2040	my ($self, $merge) = @_;
1226		2041
1227	# we have to keep some variables in memory intact	2042	# we have to keep some variables in memory intact
1228	local $self->{path};	2043	local $self->{path};
1229	local $self->{load_path};	2044	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		2045
1233	$self->SUPER::thawer_merge ($merge);	2046	$self->SUPER::thawer_merge ($merge);
1234	}	2047	}
1235		2048
1236	sub normalise {	2049	sub normalise {
1237	my ($path, $base) = @_;	2050	my ($path, $base) = @_;
1238		2051
1239	$path = "$path"; # make sure its a string	2052	$path = "$path"; # make sure it's a string
1240		2053
1241	$path =~ s/\.map$//;	2054	$path =~ s/\.map$//;
1242		2055
1243	# map plan:	2056	# map plan:
1244	#	2057	#
…		…
1259	$base =~ s{[^/]+/?$}{};	2072	$base =~ s{[^/]+/?$}{};
1260	$path = "$base/$path";	2073	$path = "$base/$path";
1261	}	2074	}
1262		2075
1263	for ($path) {	2076	for ($path) {
1264	redo if s{//}{/};
1265	redo if s{/\.?/}{/};	2077	redo if s{/\.?/}{/};
1266	redo if s{/[^/]+/\.\./}{/};	2078	redo if s{/[^/]+/\.\./}{/};
1267	}	2079	}
1268		2080
1269	$path	2081	$path
…		…
1283	$self->init; # pass $1 etc.	2095	$self->init; # pass $1 etc.
1284	return $self;	2096	return $self;
1285	}	2097	}
1286	}	2098	}
1287		2099
1288	Carp::carp "unable to resolve path '$path' (base '$base').";	2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1289	()	2101	()
1290	}	2102	}
1291		2103
		2104	# may re-bless or do other evil things
1292	sub init {	2105	sub init {
1293	my ($self) = @_;	2106	my ($self) = @_;
1294		2107
1295	$self	2108	$self
1296	}	2109	}
…		…
1308		2121
1309	# the original (read-only) location	2122	# the original (read-only) location
1310	sub load_path {	2123	sub load_path {
1311	my ($self) = @_;	2124	my ($self) = @_;
1312		2125
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2126	"$MAPDIR/$self->{path}.map"
1314	}	2127	}
1315		2128
1316	# the temporary/swap location	2129	# the temporary/swap location
1317	sub save_path {	2130	sub save_path {
1318	my ($self) = @_;	2131	my ($self) = @_;
1319		2132
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2134	"$TMPDIR/$path.map"
1322	}	2135	}
1323		2136
1324	# the unique path, undef == no special unique path	2137	# the unique path, undef == no special unique path
1325	sub uniq_path {	2138	sub uniq_path {
1326	my ($self) = @_;	2139	my ($self) = @_;
1327		2140
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2142	"$UNIQUEDIR/$path"
1330	}	2143	}
1331		2144
1332	# and all this just because we cannot iterate over	2145	sub decay_objects {
1333	# all maps in C++...
1334	sub change_all_map_light {
1335	my ($change) = @_;	2146	my ($self) = @_;
1336		2147
1337	$_->change_map_light ($change)	2148	return if $self->{deny_reset};
1338	for grep $_->outdoor, values %cf::MAP;	2149
		2150	$self->do_decay_objects;
1339	}	2151	}
1340		2152
1341	sub unlink_save {	2153	sub unlink_save {
1342	my ($self) = @_;	2154	my ($self) = @_;
1343		2155
…		…
1348		2160
1349	sub load_header_from($) {	2161	sub load_header_from($) {
1350	my ($self, $path) = @_;	2162	my ($self, $path) = @_;
1351		2163
1352	utf8::encode $path;	2164	utf8::encode $path;
1353	#aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1354	# or return;
1355
1356	$self->_load_header ($path)
1357	or return;	2166	or return;
1358		2167
		2168	$self->_load_header ($f)
		2169	or return;
		2170
		2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
1359	$self->{load_path} = $path;	2174	$self->{load_path} = $path;
1360		2175
1361	1	2176	1
1362	}	2177	}
1363		2178
		2179	# used to laod the header of an original map
1364	sub load_header_orig {	2180	sub load_header_orig {
1365	my ($self) = @_;	2181	my ($self) = @_;
1366		2182
1367	$self->load_header_from ($self->load_path)	2183	$self->load_header_from ($self->load_path)
1368	}	2184	}
1369		2185
		2186	# used to laod the header of an instantiated map
1370	sub load_header_temp {	2187	sub load_header_temp {
1371	my ($self) = @_;	2188	my ($self) = @_;
1372		2189
1373	$self->load_header_from ($self->save_path)	2190	$self->load_header_from ($self->save_path)
1374	}	2191	}
1375		2192
		2193	# called after loading the header from an instantiated map
1376	sub prepare_temp {	2194	sub prepare_temp {
1377	my ($self) = @_;	2195	my ($self) = @_;
1378		2196
1379	$self->last_access ((delete $self->{last_access})	2197	$self->last_access ((delete $self->{last_access})
1380	|| $cf::RUNTIME); #d#	2198	|| $cf::RUNTIME); #d#
1381	# safety	2199	# safety
1382	$self->{instantiate_time} = $cf::RUNTIME	2200	$self->{instantiate_time} = $cf::RUNTIME
1383	if $self->{instantiate_time} > $cf::RUNTIME;	2201	if $self->{instantiate_time} > $cf::RUNTIME;
1384	}	2202	}
1385		2203
		2204	# called after loading the header from an original map
1386	sub prepare_orig {	2205	sub prepare_orig {
1387	my ($self) = @_;	2206	my ($self) = @_;
1388		2207
1389	$self->{load_original} = 1;	2208	$self->{load_original} = 1;
1390	$self->{instantiate_time} = $cf::RUNTIME;	2209	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1401	$self->load_header_orig	2220	$self->load_header_orig
1402	or return;	2221	or return;
1403	$self->prepare_orig;	2222	$self->prepare_orig;
1404	}	2223	}
1405		2224
		2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
		2227
		2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
1406	1	2231	1
1407	}	2232	}
1408		2233
1409	sub find;	2234	sub find;
1410	sub find {	2235	sub find {
1411	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1412		2237
		2238	cf::cede_to_tick;
		2239
1413	$path = normalise $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1414		2241
		2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1415	cf::lock_wait "map_find:$path";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1416		2244
1417	$cf::MAP{$path} || do {	2245	$cf::MAP{$path} || do {
1418	my $guard = cf::lock_acquire "map_find:$path";
1419	my $map = new_from_path cf::map $path	2246	my $map = new_from_path cf::map $path
1420	or return;	2247	or return;
1421		2248
1422	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1423		2250
1424	$map->load_header	2251	$map->load_header
1425	or return;	2252	or return;
1426		2253
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	2255	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1430	$map->reset;	2259	$map->reset;
1431	undef $guard;
1432	return find $path;	2260	return find $path;
1433	}	2261	}
1434		2262
1435	$cf::MAP{$path} = $map	2263	$cf::MAP{$path} = $map
1436	}	2264	}
1437	}	2265	}
1438		2266
1439	sub pre_load { }	2267	sub pre_load { }
1440	sub post_load { }	2268	#sub post_load { } # XS
1441		2269
1442	sub load {	2270	sub load {
1443	my ($self) = @_;	2271	my ($self) = @_;
1444		2272
1445	local $self->{deny_reset} = 1; # loading can take a long time	2273	local $self->{deny_reset} = 1; # loading can take a long time
1446		2274
1447	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1448	my $guard = cf::lock_acquire "map_load:$path";	2278	my $guard = cf::lock_acquire "map_data:$path";
1449		2279
1450	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1451		2282
1452	$self->in_memory (cf::MAP_LOADING);
1453
1454	$self->alloc;	2283	$self->alloc;
1455		2284
1456	$self->pre_load;	2285	$self->pre_load;
		2286	cf::cede_to_tick;
1457		2287
1458	$self->_load_objects ($self->{load_path}, 1)	2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1459	or return;	2292	or return;
1460		2293
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1462	if delete $self->{load_original};	2295	if delete $self->{load_original};
1463		2296
1464	if (my $uniq = $self->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;	2298	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1467	$self->clear_unique_items;	2301	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1469	}	2306	}
1470	}
1471		2307
1472	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1473		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1474	# now do the right thing for maps	2317	# now do the right thing for maps
1475	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;
1482	$self->set_darkness_map;
1483	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	2320	unless $self->difficulty;
1485	Coro::cede;	2321	cf::cede_to_tick;
1486	$self->activate;	2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
1487	}	2333	}
1488		2334
1489	$self->post_load;	2335	$self->post_load;
1490		2336
1491	$self->in_memory (cf::MAP_IN_MEMORY);	2337	1
1492	}	2338	}
1493		2339
		2340	# customize the map for a given player, i.e.
		2341	# return the _real_ map. used by e.g. per-player
		2342	# maps to change the path to ~playername/mappath
1494	sub customise_for {	2343	sub customise_for {
1495	my ($self, $ob) = @_;	2344	my ($self, $ob) = @_;
1496		2345
1497	return find "~" . $ob->name . "/" . $self->{path}	2346	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	2347	if $self->per_player;
1499		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
1500	$self	2352	$self
1501	}
1502
1503	# find and load all maps in the 3x3 area around a map
1504	sub load_diag {
1505	my ($map) = @_;
1506
1507	my @diag; # diagonal neighbours
1508
1509	for (0 .. 3) {
1510	my $neigh = $map->tile_path ($_)
1511	or next;
1512	$neigh = find $neigh, $map
1513	or next;
1514	$neigh->load;
1515
1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1518	}
1519
1520	for (@diag) {
1521	my $neigh = find @$_
1522	or next;
1523	$neigh->load;
1524	}
1525	}	2353	}
1526		2354
1527	sub find_sync {	2355	sub find_sync {
1528	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1529		2357
1530	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1531	}	2363	}
1532		2364
1533	sub do_load_sync {	2365	sub do_load_sync {
1534	my ($map) = @_;	2366	my ($map) = @_;
1535		2367
1536	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1537	}	2373	}
1538		2374
1539	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
1540	our $MAP_PREFETCHER = undef;	2376	our $MAP_PREFETCHER = undef;
1541		2377
1542	sub find_async {	2378	sub find_async {
1543	my ($path, $origin) = @_;	2379	my ($path, $origin, $load) = @_;
1544		2380
1545	$path = normalise $path, $origin && $origin->{path};	2381	$path = normalise $path, $origin;
1546		2382
1547	if (my $map = $cf::MAP{$path}) {	2383	if (my $map = $cf::MAP{$path}) {
1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2384	return $map if !$load || $map->linkable;
1549	}	2385	}
1550		2386
1551	undef $MAP_PREFETCH{$path};	2387	$MAP_PREFETCH{$path} |= $load;
		2388
1552	$MAP_PREFETCHER ||= cf::async {	2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
1553	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1554	for my $path (keys %MAP_PREFETCH) {	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1555	my $map = find $path	2394	if (my $map = find $k) {
1556	or next;
1557	$map->load;	2395	$map->load if $v;
		2396	}
1558		2397
1559	delete $MAP_PREFETCH{$path};	2398	delete $MAP_PREFETCH{$k};
1560	}	2399	}
1561	}	2400	}
1562	undef $MAP_PREFETCHER;	2401	undef $MAP_PREFETCHER;
1563	};	2402	};
1564	$MAP_PREFETCHER->prio (6);	2403	$MAP_PREFETCHER->prio (6);
1565		2404
1566	()	2405	()
1567	}	2406	}
1568		2407
		2408	# common code, used by both ->save and ->swapout
1569	sub save {	2409	sub _save {
1570	my ($self) = @_;	2410	my ($self) = @_;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
1573		2411
1574	$self->{last_save} = $cf::RUNTIME;	2412	$self->{last_save} = $cf::RUNTIME;
1575		2413
1576	return unless $self->dirty;	2414	return unless $self->dirty;
1577		2415
…		…
1583	return if $self->{deny_save};	2421	return if $self->{deny_save};
1584		2422
1585	local $self->{last_access} = $self->last_access;#d#	2423	local $self->{last_access} = $self->last_access;#d#
1586		2424
1587	cf::async {	2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
1588	$_->contr->save for $self->players;	2427	$_->contr->save for $self->players;
1589	};	2428	};
		2429
		2430	cf::get_slot 0.02;
1590		2431
1591	if ($uniq) {	2432	if ($uniq) {
1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1593	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1594	} else {	2435	} else {
1595	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1596	}	2437	}
1597	}	2438	}
1598		2439
		2440	sub save {
		2441	my ($self) = @_;
		2442
		2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2444
		2445	$self->_save;
		2446	}
		2447
1599	sub swap_out {	2448	sub swap_out {
1600	my ($self) = @_;	2449	my ($self) = @_;
1601		2450
1602	# save first because save cedes
1603	$self->save;
1604
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1607	return if $self->players;	2455	return if $self->players;
1608	return if $self->in_memory != cf::MAP_IN_MEMORY;
1609	return if $self->{deny_save};
1610		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1611	$self->clear;	2466	$self->clear;
1612	$self->in_memory (cf::MAP_SWAPPED);
1613	}	2467	}
1614		2468
1615	sub reset_at {	2469	sub reset_at {
1616	my ($self) = @_;	2470	my ($self) = @_;
1617		2471
1618	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1621		2474
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		2477
…		…
1635	my ($self) = @_;	2488	my ($self) = @_;
1636		2489
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2491
1639	return if $self->players;	2492	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		2493
1642	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
1643		2495
1644	$self->in_memory (cf::MAP_SWAPPED);	2496	$self->state (cf::MAP_SWAPPED);
1645		2497
1646	# need to save uniques path	2498	# need to save uniques path
1647	unless ($self->{deny_save}) {	2499	unless ($self->{deny_save}) {
1648	my $uniq = $self->uniq_path; utf8::encode $uniq;	2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
1649		2501
…		…
1651	if $uniq;	2503	if $uniq;
1652	}	2504	}
1653		2505
1654	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1655		2507
		2508	$self->deactivate;
		2509	$_->clear_links_to ($self) for values %cf::MAP;
1656	$self->clear;	2510	$self->clear;
1657
1658	$_->clear_links_to ($self) for values %cf::MAP;
1659		2511
1660	$self->unlink_save;	2512	$self->unlink_save;
1661	$self->destroy;	2513	$self->destroy;
1662	}	2514	}
1663		2515
1664	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1665		2517
1666	sub nuke {	2518	sub nuke {
1667	my ($self) = @_;	2519	my ($self) = @_;
1668		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
1669	delete $cf::MAP{$self->path};	2524	delete $cf::MAP{$self->path};
1670		2525
1671	$self->unlink_save;	2526	$self->unlink_save;
1672		2527
1673	bless $self, "cf::map";	2528	bless $self, "cf::map::wrap";
1674	delete $self->{deny_reset};	2529	delete $self->{deny_reset};
1675	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1676	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1678		2533
1679	$cf::MAP{$self->path} = $self;	2534	$cf::MAP{$self->path} = $self;
		2535	}
1680		2536
1681	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
		2538	}
		2539
		2540	=item $maps = cf::map::tmp_maps
		2541
		2542	Returns an arrayref with all map paths of currently instantiated and saved
		2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
		2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
		2557
		2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
1682	}	2574	}
1683		2575
1684	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1685		2577
1686	Returns an arrayref of paths of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2579	instantiated unique items. May block.
1688		2580
1689	=cut	2581	=cut
1690		2582
1691	sub unique_maps() {	2583	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1693	or return;	2585	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2586	utf8::decode $_;
1699	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1700	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1701		2589	? ()
1702	push @paths, cf::map::normalise $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2592	]
1704
1705	\@paths
1706	}	2593	}
1707		2594
1708	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1709		2626
1710	=back	2627	=back
1711		2628
1712	=head3 cf::object	2629	=head3 cf::object
1713		2630
…		…
1717		2634
1718	=over 4	2635	=over 4
1719		2636
1720	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1721		2638
1722	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1723		2641
1724	=cut	2642	=cut
1725		2643
1726	sub inv_recursive_;	2644	sub inv_recursive_;
1727	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1730		2648
1731	sub inv_recursive {	2649	sub inv_recursive {
1732	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1733	}	2651	}
1734		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1735	package cf;	2681	package cf;
1736		2682
1737	=back	2683	=back
1738		2684
1739	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1745	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1746	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1747	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1748		2694
1749	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1750		2710
1751	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1752	# with dialog boxes.	2712	# with dialog boxes.
1753	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1754	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1756		2716
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2718
1759	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1761	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1764	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1765	}	2744	}
1766		2745
1767	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1768		2747
1769	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1782		2761
1783	=item $player_object->enter_link	2762	=item $player_object->enter_link
1784		2763
1785	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1786		2765
1787	The player should be reasonably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1788	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
1789		2770
1790	Will never block.	2771	Will never block.
1791		2772
1792	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1793		2774
…		…
1813	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1814	my ($self) = @_;	2795	my ($self) = @_;
1815		2796
1816	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1817		2798
		2799	++$self->{_link_recursion};
		2800
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2802
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1822		2805
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1824	}	2807	}
1825		2808
1826	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1828		2813
1829	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1830		2815
1831	unless ($map) {	2816	unless ($map) {
1832	# restore original map position	2817	# restore original map position
…		…
1843	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1844	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1845		2830
1846	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1847	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1848	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1849		2834
1850	$map->load;	2835	$map->load;
1851	$map->load_diag;
1852		2836
1853	return unless $self->contr->active;	2837	return unless $self->contr->active;
1854	$self->activate_recursive;
1855		2838
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2840	if ($self->enter_map ($map, $x, $y)) {
1858	}	2841	# entering was successful
1859		2842	delete $self->{_link_recursion};
1860	cf::player->attach (	2843	# only activate afterwards, to support waiting in hooks
1861	on_logout => sub {	2844	$self->activate_recursive;
1862	my ($pl) = @_;
1863
1864	# abort map switching before logout
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},	2845	}
1871	on_login => sub {
1872	my ($pl) = @_;
1873		2846
1874	# try to abort aborted map switching on player login :)	2847	}
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891		2848
1892	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1893		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1894	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1895		2863
1896	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
		2866
		2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2875
1899	$self->enter_link;	2876	$self->enter_link;
1900		2877
1901	(async {	2878	(async {
		2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
1902	my $map = eval {	2900	my $map = eval {
1903	my $map = cf::map::find $path;	2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
		2906	} else {
		2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
		2909
1905	$map	2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2916	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1910	})->prio (1);	2924	})->prio (1);
1911	}	2925	}
1912		2926
1913	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1914		2928
…		…
1934	}	2948	}
1935		2949
1936	sub prepare_random_map {	2950	sub prepare_random_map {
1937	my ($exit) = @_;	2951	my ($exit) = @_;
1938		2952
1939	my $guard = cf::lock_acquire "exit_prepare:$exit";
1940
1941	# all this does is basically replace the /! path by	2953	# all this does is basically replace the /! path by
1942	# a new random map path (?random/...) with a seed	2954	# a new random map path (?random/...) with a seed
1943	# that depends on the exit object	2955	# that depends on the exit object
1944		2956
1945	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
…		…
1947	if ($exit->map) {	2959	if ($exit->map) {
1948	$rmp->{region} = $exit->region->name;	2960	$rmp->{region} = $exit->region->name;
1949	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1950	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1951	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1952	}	2966	}
1953		2967
1954	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1955		2969
1956	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1957	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2972	my $meta = "$RANDOMDIR/$md5.meta";
1959		2973
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2976	undef $fh;
1963	aio_rename "$meta~", $meta;	2977	aio_rename "$meta~", $meta;
1964		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1965	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1966	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1967	}	2985	}
1968	}	2986	}
1969		2987
1970	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1971	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
1972		2990
1973	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1974		2992
1975	if ($exit->slaying eq "/!") {
1976	#TODO: this should de-fi-ni-te-ly not be a sync-job
1977	# the problem is that $exit might not survive long enough
1978	# so it needs to be done right now, right here
1979	cf::sync_job { prepare_random_map $exit };
1980	}
1981
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;
1985
1986	$self->enter_link;	2993	$self->enter_link;
1987		2994
1988	(async {	2995	(async {
1989	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1990	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
		3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
		3015	$map = $exit->slaying;
		3016
		3017	} elsif ($slaying eq '!up') {
		3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
1991	$self->goto ($slaying, $hp, $sp);	3028	$self->goto ($map, $x, $y);
1992		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1993	1;	3034	1
1994	}) {	3035	}) {
1995	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1996	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1997	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
1998	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1999		3040
2000	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
2001	$self->leave_link;	3042	$self->leave_link;
2002	}	3043	}
2003	})->prio (1);	3044	})->prio (1);
2004	}	3045	}
2005		3046
…		…
2019		3060
2020	utf8::encode $text;	3061	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	3063	}
2023		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
2024	=item $client->ext_event ($type, %msg)	3252	=item $client->ext_msg ($type, @msg)
2025		3253
2026	Sends an exti event to the client.	3254	Sends an ext event to the client.
2027		3255
2028	=cut	3256	=cut
2029		3257
2030	sub cf::client::ext_event($$%) {	3258	sub cf::client::ext_msg($$@) {
2031	my ($self, $type, %msg) = @_;	3259	my ($self, $type, @msg) = @_;
2032		3260
2033	$msg{msgtype} = "event_$type";	3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2034	$self->send_packet ("ext " . cf::to_json \%msg);
2035	}	3262	}
2036		3263
2037	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
2038		3265
2039	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		3269
2043	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	3271	become reliable at some point in the future.
2045		3272
2046	=cut	3273	=cut
2047		3274
2048	sub cf::client::query {	3275	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	3284	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		3286
2060	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
2062	}	3291	}
2063		3292
2064	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
2065	on_reply => sub {	3299	on_reply => sub {
2066	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
2067		3301
2068	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
2069	# get handled first	3303	# get handled first
…		…
2081	} else {	3315	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	3317	}
2084	}	3318	}
2085	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
2086	);	3353	);
2087		3354
2088	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2089		3356
2090	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2106		3373
2107	$coro	3374	$coro
2108	}	3375	}
2109		3376
2110	cf::client->attach (	3377	cf::client->attach (
2111	on_destroy => sub {	3378	on_client_destroy => sub {
2112	my ($ns) = @_;	3379	my ($ns) = @_;
2113		3380
2114	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2115	},	3382	},
2116	);	3383	);
…		…
2131	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2132	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2133		3400
2134	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2135		3402
2136	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2137		3408
2138	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2139		3410
2140	=pod	3411	=pod
2141		3412
2142	The following functions and methods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2143		3414
2144	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2145	cf::object::player player	3420	cf::object::player
2146	cf::player peaceful	3421	player
2147	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2148		3428
2149	=cut	3429	=cut
2150		3430
2151	for (	3431	for (
2152	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2153	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2154	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2155	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2156	) {	3438	) {
2157	no strict 'refs';
2158	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2159	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2160	for @funs;	3441	for @funs;
2161	}	3442	}
2162		3443
…		…
2177		3458
2178	my $qcode = $code;	3459	my $qcode = $code;
2179	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2180	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2181		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2182	local $_;	3466	local $_;
2183	local @safe::cf::_safe_eval_args = values %vars;
2184		3467
2185	my $eval =	3468	my $eval =
2186	"do {\n"	3469	"do {\n"
2187	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2188	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2189	. $code	3472	. $code
2190	. "\n}"	3473	. "\n}"
2191	;	3474	;
2192		3475
		3476	if ($CFG{safe_eval}) {
2193	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2194	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2195	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2196		3485
2197	if ($@) {	3486	if ($@) {
2198	warn "$@";	3487	warn "$@",
2199	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2200	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2201	}	3490	}
2202		3491
2203	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2204	}	3493	}
2205		3494
…		…
2219	=cut	3508	=cut
2220		3509
2221	sub register_script_function {	3510	sub register_script_function {
2222	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2223		3512
2224	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2225	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2226	}	3515	}
2227		3516
2228	=back	3517	=back
2229		3518
2230	=cut	3519	=cut
2231
2232	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303		3520
2304	#############################################################################	3521	#############################################################################
2305	# the server's init and main functions	3522	# the server's init and main functions
2306		3523
		3524	our %FACEHASH; # hash => idx, #d# HACK for http server
		3525	our @FACEDATA; # dynamically-created facedata
		3526
		3527	# internal api, not fianlised
		3528	sub set_face {
		3529	my ($name, $type, $data) = @_;
		3530
		3531	my $idx = cf::face::find $name;
		3532
		3533	if ($idx) {
		3534	delete $FACEHASH{cf::face::get_chksum $idx};
		3535	} else {
		3536	$idx = cf::face::alloc $name;
		3537	}
		3538
		3539	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3540
		3541	cf::face::set_type $idx, $type;
		3542	cf::face::set_data $idx, 0, (length $data), 0, $hash;
		3543	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3544
		3545	# we need to destroy the SV itself, not just overwrite,
		3546	# as a running ix might hold a reference to it.
		3547	# delete achieves that.
		3548	delete $FACEDATA[$idx];
		3549	$FACEDATA[$idx] = $data;
		3550	$FACEHASH{$hash} = $idx;#d#
		3551
		3552	$idx
		3553	}
		3554
		3555	our $FACEDATA; # facedata filehandle
		3556
		3557	sub _face_get_data($$$$) {
		3558	my ($idx, $size, $fofs, $cb) = @_;
		3559
		3560	if (defined $FACEDATA[$idx]) {
		3561	$cb->($FACEDATA[$idx]);
		3562	} elsif ($fofs) {
		3563	my $buf;
		3564	IO::AIO::aio_read $FACEDATA, $fofs, $size, $buf, 0, sub {
		3565	if ($_[0] == $size) {
		3566	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3567	$cb->($buf);
		3568	} else {
		3569	cf::error "INTERNAL ERROR: unable to read facedata for face $idx ($size, $fofs), ignoring request.";
		3570	}
		3571	};
		3572	} else {
		3573	cf::error "requested facedata for unknown face $idx ($size, $fofs), ignoring.";
		3574	}
		3575	}
		3576
		3577	# rather ineffient
		3578	sub cf::face::get_data($;$) {
		3579	my ($idx, $faceset) = @_;
		3580
		3581	my $size = cf::face::get_size $idx, $faceset;
		3582	my $fofs = cf::face::get_fofs $idx, $faceset;
		3583
		3584	_face_get_data $idx, $size, $fofs, Coro::rouse_cb;
		3585	Coro::rouse_wait
		3586	}
		3587
		3588	sub cf::face::ix {
		3589	my ($ns, $idx, $pri, $size, $fofs) = @_;
		3590
		3591	_face_get_data $idx, $size, $fofs, sub {
		3592	$ns->ix_send ($idx, $pri, $_[0]);
		3593	};
		3594	}
		3595
2307	sub load_facedata {	3596	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	3597	my ($path) = @_;
2309		3598
		3599	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3600
2310	warn "loading facedata from $path\n";	3601	trace "loading facedata from $path\n";
2311		3602
2312	my $faces;	3603	my $facedata = decode_storable load_file "$path/faceinfo";
2313	0 < aio_load $path, $faces
2314	or die "$path: $!";
2315		3604
2316	Coro::cede;
2317	$faces = Storable::thaw $faces;
2318	Coro::cede;
2319
2320	my $meta = delete $faces->{""};
2321	$meta->{version} == 1	3605	$facedata->{version} == 2
2322	or cf::cleanup "$path: version mismatch, cannot proceed.";	3606	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
2323		3607
2324	while (my ($face, $info) = each %$faces) {	3608	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3609	or cf::cleanup "$path/facedata: $!, cnanot proceed.";
		3610
		3611	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3612
		3613	# BEGIN ATOMIC
		3614	# from here on, everything must be atomic - no thread switch allowed
		3615	my $t1 = EV::time;
		3616
		3617	{
		3618	my $faces = $facedata->{faceinfo};
		3619
		3620	for my $face (sort keys %$faces) {
		3621	my $info = $faces->{$face};
2325	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3622	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2326	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3623
		3624	cf::face::set_visibility $idx, $info->{visibility};
		3625	cf::face::set_magicmap $idx, $info->{magicmap};
2327	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3626	cf::face::set_data $idx, 0, $info->{size32}, $info->{fofs32}, $info->{hash32};
2328	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3627	cf::face::set_data $idx, 1, $info->{size64}, $info->{fofs64}, $info->{hash64};
2329	Coro::cede;	3628	#cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph}; # glyphs no longer downloadable via ix
2330	}	3629	$FACEHASH{$info->{hash64}} = $idx;#d#
		3630	}
2331		3631
2332	while (my ($face, $info) = each %$faces) {	3632	while (my ($face, $info) = each %$faces) {
2333	next unless $info->{smooth};	3633	next unless $info->{smooth};
		3634
2334	my $idx = cf::face::find $face	3635	my $idx = cf::face::find $face
		3636	or next;
		3637
		3638	if (my $smooth = cf::face::find $info->{smooth}) {
		3639	cf::face::set_smooth $idx, $smooth;
		3640	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3641	} else {
		3642	error "smooth face '$info->{smooth}' not found for face '$face'";
		3643	}
		3644	}
		3645	}
		3646
		3647	{
		3648	my $anims = $facedata->{animinfo};
		3649
		3650	while (my ($anim, $info) = each %$anims) {
		3651	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3652	}
		3653
		3654	cf::anim::invalidate_all; # d'oh
		3655	}
		3656
		3657	{
		3658	my $res = $facedata->{resource};
		3659
		3660	while (my ($name, $info) = each %$res) {
		3661	if (defined (my $type = $info->{type})) {
		3662	# TODO: different hash - must free and use new index, or cache ixface data queue
		3663	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3664
		3665	cf::face::set_type $idx, $type;
		3666	cf::face::set_data $idx, 0, $info->{size}, $info->{fofs}, $info->{hash};
		3667	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3668	$FACEHASH{$info->{hash}} = $idx;#d#
		3669	} else {
		3670	# $RESOURCE{$name} = $info; # unused
		3671	}
		3672	}
		3673	}
		3674
		3675	($fh, $FACEDATA) = ($FACEDATA, $fh);
		3676
		3677	# HACK to clear player env face cache, we need some signal framework
		3678	# for this (global event?)
		3679	%ext::player_env::MUSIC_FACE_CACHE = ();
		3680
		3681	# END ATOMIC
		3682
		3683	cf::debug "facedata atomic update time ", EV::time - $t1;
		3684
		3685	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3686
		3687	aio_close $fh if $fh; # close old facedata
		3688
		3689	1
		3690	}
		3691
		3692	register_exticmd fx_want => sub {
		3693	my ($ns, $want) = @_;
		3694
		3695	while (my ($k, $v) = each %$want) {
		3696	$ns->fx_want ($k, $v);
		3697	}
		3698	};
		3699
		3700	sub load_resource_file($) {
		3701	my $guard = lock_acquire "load_resource_file";
		3702
		3703	my $status = load_resource_file_ $_[0];
		3704	get_slot 0.1, 100;
		3705	cf::arch::commit_load;
		3706
		3707	$status
		3708	}
		3709
		3710	sub reload_exp_table {
		3711	_reload_exp_table;
		3712
		3713	set_face "res/exp_table" => FT_RSRC,
		3714	JSON::XS->new->utf8->canonical->encode (
		3715	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3716	);
		3717	}
		3718
		3719	sub reload_materials {
		3720	_reload_materials;
		3721	}
		3722
		3723	sub reload_regions {
		3724	# HACK to clear player env face cache, we need some signal framework
		3725	# for this (global event?)
		3726	%ext::player_env::MUSIC_FACE_CACHE = ();
		3727
		3728	load_resource_file "$MAPDIR/regions"
		3729	or die "unable to load regions file\n";
		3730
		3731	for (cf::region::list) {
		3732	$_->{match} = qr/$_->{match}/
		3733	if exists $_->{match};
		3734	}
		3735	}
		3736
		3737	sub reload_facedata {
		3738	load_facedata $DATADIR
		3739	or die "unable to load facedata\n";
		3740	}
		3741
		3742	sub reload_archetypes {
		3743	load_resource_file "$DATADIR/archetypes"
		3744	or die "unable to load archetypes\n";
		3745
		3746	set_face "res/skill_info" => FT_RSRC,
		3747	JSON::XS->new->utf8->canonical->encode (
		3748	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3749	);
		3750	set_face "res/spell_paths" => FT_RSRC,
		3751	JSON::XS->new->utf8->canonical->encode (
		3752	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3753	);
		3754	}
		3755
		3756	sub reload_treasures {
		3757	load_resource_file "$DATADIR/treasures"
		3758	or die "unable to load treasurelists\n";
		3759	}
		3760
		3761	sub reload_sound {
		3762	trace "loading sound config from $DATADIR/sound\n";
		3763
		3764	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3765
		3766	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3767	my $sound = $soundconf->{compat}[$_]
2335	or next;	3768	or next;
2336	if (my $smooth = cf::face::find $info->{smooth}) {
2337	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2338	} else {
2339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2340	}
2341	Coro::cede;
2342	}
2343		3769
		3770	my $face = cf::face::find "sound/$sound->[1]";
		3771	cf::sound::set $sound->[0] => $face;
		3772	cf::sound::old_sound_index $_, $face; # gcfclient-compat
2344	1	3773	}
		3774
		3775	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3776	my $face = cf::face::find "sound/$v";
		3777	cf::sound::set $k => $face;
		3778	}
2345	}	3779	}
2346		3780
2347	sub reload_resources {	3781	sub reload_resources {
2348	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3782	trace "reloading resource files...\n";
2349	or die "unable to load regions file\n";#d#	3783
		3784	reload_materials;
2350	load_facedata	3785	reload_facedata;
2351	or die "unable to load facedata\n";#d#	3786	reload_exp_table;
2352	}	3787	reload_sound;
2353		3788	reload_archetypes;
2354	sub init {
2355	reload_resources;	3789	reload_regions;
2356	}	3790	reload_treasures;
2357		3791
2358	sub cfg_load {	3792	trace "finished reloading resource files\n";
2359	open my $fh, "<:utf8", cf::confdir . "/config"	3793	}
2360	or return;
2361		3794
2362	local $/;	3795	sub reload_config {
2363	*CFG = YAML::Syck::Load <$fh>;	3796	trace "reloading config file...\n";
2364		3797
		3798	my $config = load_file "$CONFDIR/config";
		3799	utf8::decode $config;
		3800	*CFG = decode_yaml $config;
		3801
2365	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2366		3803
2367	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3804	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2368	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3805	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2369		3806
2370	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
…		…
2374	};	3811	};
2375	warn $@ if $@;	3812	warn $@ if $@;
2376	}	3813	}
2377	}	3814	}
2378		3815
		3816	sub pidfile() {
		3817	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3818	or die "$PIDFILE: $!";
		3819	flock $fh, &Fcntl::LOCK_EX
		3820	or die "$PIDFILE: flock: $!";
		3821	$fh
		3822	}
		3823
		3824	# make sure only one server instance is running at any one time
		3825	sub atomic {
		3826	my $fh = pidfile;
		3827
		3828	my $pid = <$fh>;
		3829	kill 9, $pid if $pid > 0;
		3830
		3831	seek $fh, 0, 0;
		3832	print $fh $$;
		3833	}
		3834
		3835	sub main_loop {
		3836	trace "EV::loop starting\n";
		3837	if (1) {
		3838	EV::loop;
		3839	}
		3840	trace "EV::loop returned\n";
		3841	goto &main_loop unless $REALLY_UNLOOP;
		3842	}
		3843
2379	sub main {	3844	sub main {
		3845	cf::init_globals; # initialise logging
		3846
		3847	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3848	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3849	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3850	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3851
		3852	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3853
2380	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2381	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2382	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3856	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2383	(async {	3857	(async {
2384	Event::one_event;	3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3859	EV::loop EV::LOOP_ONESHOT;
2385	})->prio (Coro::PRIO_MAX);	3860	})->prio (Coro::PRIO_MAX);
2386	};	3861	};
2387		3862
2388	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
		3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
2389	db_init;	3868	db_init;
		3869
		3870	cf::init_anim;
		3871	cf::init_attackmess;
		3872	cf::init_dynamic;
		3873
		3874	cf::load_settings;
		3875
		3876	reload_resources;
		3877	reload_config;
		3878
		3879	cf::init_uuid;
		3880	cf::init_signals;
		3881	cf::init_skills;
		3882
		3883	cf::init_beforeplay;
		3884
		3885	atomic;
		3886
2390	load_extensions;	3887	load_extensions;
2391		3888
2392	$TICK_WATCHER->start;	3889	utime time, time, $RUNTIMEFILE;
2393	Event::loop;	3890
		3891	# no (long-running) fork's whatsoever before this point(!)
		3892	use POSIX ();
		3893	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3894
		3895	cf::_post_init 0;
		3896	};
		3897
		3898	cf::object::thawer::errors_are_fatal 0;
		3899	info "parse errors in files are no longer fatal from this point on.\n";
		3900
		3901	AE::postpone {
		3902	undef &main; # free gobs of memory :)
		3903	};
		3904
		3905	goto &main_loop;
2394	}	3906	}
2395		3907
2396	#############################################################################	3908	#############################################################################
2397	# initialisation and cleanup	3909	# initialisation and cleanup
2398		3910
2399	# install some emergency cleanup handlers	3911	# install some emergency cleanup handlers
2400	BEGIN {	3912	BEGIN {
		3913	our %SIGWATCHER = ();
2401	for my $signal (qw(INT HUP TERM)) {	3914	for my $signal (qw(INT HUP TERM)) {
2402	Event->signal (	3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2403	reentrant => 0,
2404	data => WF_AUTOCANCEL,
2405	signal => $signal,
2406	prio => 0,
2407	cb => sub {
2408	cf::cleanup "SIG$signal";	3916	cf::cleanup "SIG$signal";
2409	},
2410	);	3917	};
		3918	}
		3919	}
		3920
		3921	sub write_runtime_sync {
		3922	my $t0 = AE::time;
		3923
		3924	# first touch the runtime file to show we are still running:
		3925	# the fsync below can take a very very long time.
		3926
		3927	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3928
		3929	my $guard = cf::lock_acquire "write_runtime";
		3930
		3931	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3932	or return;
		3933
		3934	my $value = $cf::RUNTIME + 90 + 10;
		3935	# 10 is the runtime save interval, for a monotonic clock
		3936	# 60 allows for the watchdog to kill the server.
		3937
		3938	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3939	and return;
		3940
		3941	# always fsync - this file is important
		3942	aio_fsync $fh
		3943	and return;
		3944
		3945	# touch it again to show we are up-to-date
		3946	aio_utime $fh, undef, undef;
		3947
		3948	close $fh
		3949	or return;
		3950
		3951	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3952	and return;
		3953
		3954	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3955
2411	}	3956	1
		3957	}
		3958
		3959	our $uuid_lock;
		3960	our $uuid_skip;
		3961
		3962	sub write_uuid_sync($) {
		3963	$uuid_skip ||= $_[0];
		3964
		3965	return if $uuid_lock;
		3966	local $uuid_lock = 1;
		3967
		3968	my $uuid = "$LOCALDIR/uuid";
		3969
		3970	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3971	or return;
		3972
		3973	my $value = uuid_seq uuid_cur;
		3974
		3975	unless ($value) {
		3976	info "cowardly refusing to write zero uuid value!\n";
		3977	return;
		3978	}
		3979
		3980	my $value = uuid_str $value + $uuid_skip;
		3981	$uuid_skip = 0;
		3982
		3983	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3984	and return;
		3985
		3986	# always fsync - this file is important
		3987	aio_fsync $fh
		3988	and return;
		3989
		3990	close $fh
		3991	or return;
		3992
		3993	aio_rename "$uuid~", $uuid
		3994	and return;
		3995
		3996	trace "uuid file written ($value).\n";
		3997
		3998	1
		3999
		4000	}
		4001
		4002	sub write_uuid($$) {
		4003	my ($skip, $sync) = @_;
		4004
		4005	$sync ? write_uuid_sync $skip
		4006	: async { write_uuid_sync $skip };
2412	}	4007	}
2413		4008
2414	sub emergency_save() {	4009	sub emergency_save() {
2415	my $freeze_guard = cf::freeze_mainloop;	4010	my $freeze_guard = cf::freeze_mainloop;
2416		4011
2417	warn "enter emergency perl save\n";	4012	info "emergency_perl_save: enter\n";
		4013
		4014	# this is a trade-off: we want to be very quick here, so
		4015	# save all maps without fsync, and later call a global sync
		4016	# (which in turn might be very very slow)
		4017	local $USE_FSYNC = 0;
2418		4018
2419	cf::sync_job {	4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
2420	# use a peculiar iteration method to avoid tripping on perl	4022	# use a peculiar iteration method to avoid tripping on perl
2421	# refcount bugs in for. also avoids problems with players	4023	# refcount bugs in for. also avoids problems with players
2422	# and maps saved/destroyed asynchronously.	4024	# and maps saved/destroyed asynchronously.
2423	warn "begin emergency player save\n";	4025	info "emergency_perl_save: begin player save\n";
2424	for my $login (keys %cf::PLAYER) {	4026	for my $login (keys %cf::PLAYER) {
2425	my $pl = $cf::PLAYER{$login} or next;	4027	my $pl = $cf::PLAYER{$login} or next;
2426	$pl->valid or next;	4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2427	$pl->save;	4030	$pl->save;
2428	}	4031	}
2429	warn "end emergency player save\n";	4032	info "emergency_perl_save: end player save\n";
2430		4033
2431	warn "begin emergency map save\n";	4034	cf::write_runtime_sync; # external watchdog should not bark
		4035
		4036	info "emergency_perl_save: begin map save\n";
2432	for my $path (keys %cf::MAP) {	4037	for my $path (keys %cf::MAP) {
2433	my $map = $cf::MAP{$path} or next;	4038	my $map = $cf::MAP{$path} or next;
2434	$map->valid or next;	4039	$map->valid or next;
2435	$map->save;	4040	$map->save;
2436	}	4041	}
2437	warn "end emergency map save\n";	4042	info "emergency_perl_save: end map save\n";
2438		4043
2439	warn "begin emergency database checkpoint\n";	4044	cf::write_runtime_sync; # external watchdog should not bark
		4045
		4046	info "emergency_perl_save: begin database checkpoint\n";
2440	BDB::db_env_txn_checkpoint $DB_ENV;	4047	BDB::db_env_txn_checkpoint $DB_ENV;
2441	warn "end emergency database checkpoint\n";	4048	info "emergency_perl_save: end database checkpoint\n";
		4049
		4050	info "emergency_perl_save: begin write uuid\n";
		4051	write_uuid_sync 1;
		4052	info "emergency_perl_save: end write uuid\n";
		4053
		4054	cf::write_runtime_sync; # external watchdog should not bark
		4055
		4056	trace "emergency_perl_save: syncing database to disk";
		4057	BDB::db_env_txn_checkpoint $DB_ENV;
		4058
		4059	info "emergency_perl_save: starting sync\n";
		4060	IO::AIO::aio_sync sub {
		4061	info "emergency_perl_save: finished sync\n";
		4062	};
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	trace "emergency_perl_save: flushing outstanding aio requests";
		4067	while (IO::AIO::nreqs || BDB::nreqs) {
		4068	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4069	}
		4070
		4071	cf::write_runtime_sync; # external watchdog should not bark
2442	};	4072	};
2443		4073
2444	warn "leave emergency perl save\n";	4074	info "emergency_perl_save: leave\n";
2445	}	4075	}
2446		4076
2447	sub post_cleanup {	4077	sub post_cleanup {
2448	my ($make_core) = @_;	4078	my ($make_core) = @_;
2449		4079
		4080	IO::AIO::flush;
		4081
2450	warn Carp::longmess "post_cleanup backtrace"	4082	error Carp::longmess "post_cleanup backtrace"
2451	if $make_core;	4083	if $make_core;
2452	}
2453		4084
		4085	my $fh = pidfile;
		4086	unlink $PIDFILE if <$fh> == $$;
		4087	}
		4088
		4089	# a safer delete_package, copied from Symbol
		4090	sub clear_package($) {
		4091	my $pkg = shift;
		4092
		4093	# expand to full symbol table name if needed
		4094	unless ($pkg =~ /^main::.*::$/) {
		4095	$pkg = "main$pkg" if $pkg =~ /^::/;
		4096	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4097	$pkg .= '::' unless $pkg =~ /::$/;
		4098	}
		4099
		4100	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4101	my $stem_symtab = *{$stem}{HASH};
		4102
		4103	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4104	or return;
		4105
		4106	# clear all symbols
		4107	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4108	for my $name (keys %$leaf_symtab) {
		4109	_gv_clear *{"$pkg$name"};
		4110	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4111	}
		4112	}
		4113
2454	sub reload() {	4114	sub do_reload_perl() {
2455	# can/must only be called in main	4115	# can/must only be called in main
2456	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2457	warn "can only reload from main coroutine";	4117	error "can only reload from main coroutine";
2458	return;	4118	return;
2459	}	4119	}
2460		4120
2461	warn "reloading...";	4121	return if $RELOAD++;
2462		4122
2463	warn "entering sync_job";	4123	my $t1 = AE::time;
2464		4124
		4125	while ($RELOAD) {
		4126	cf::get_slot 0.1, -1, "reload_perl";
		4127	info "perl_reload: reloading...";
		4128
		4129	trace "perl_reload: entering sync_job";
		4130
2465	cf::sync_job {	4131	cf::sync_job {
2466	cf::write_runtime; # external watchdog should not bark
2467	cf::emergency_save;	4132	#cf::emergency_save;
2468	cf::write_runtime; # external watchdog should not bark
2469		4133
2470	warn "syncing database to disk";
2471	BDB::db_env_txn_checkpoint $DB_ENV;
2472
2473	# if anything goes wrong in here, we should simply crash as we already saved
2474
2475	warn "cancelling all WF_AUTOCANCEL watchers";
2476	for (Event::all_watchers) {
2477	$_->cancel if $_->data & WF_AUTOCANCEL;
2478	}
2479
2480	warn "flushing outstanding aio requests";
2481	for (;;) {
2482	BDB::flush;
2483	IO::AIO::flush;
2484	Coro::cede;
2485	last unless IO::AIO::nreqs || BDB::nreqs;
2486	warn "iterate...";
2487	}
2488
2489	++$RELOAD;
2490
2491	warn "cancelling all extension coros";	4134	trace "perl_reload: cancelling all extension coros";
2492	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2493	%EXT_CORO = ();	4136	%EXT_CORO = ();
2494		4137
2495	warn "removing commands";	4138	trace "perl_reload: removing commands";
2496	%COMMAND = ();	4139	%COMMAND = ();
2497		4140
2498	warn "removing ext commands";	4141	trace "perl_reload: removing ext/exti commands";
2499	%EXTCMD = ();	4142	%EXTCMD = ();
		4143	%EXTICMD = ();
2500		4144
2501	warn "unloading/nuking all extensions";	4145	trace "perl_reload: unloading/nuking all extensions";
2502	for my $pkg (@EXTS) {	4146	for my $pkg (@EXTS) {
2503	warn "... unloading $pkg";	4147	trace "... unloading $pkg";
2504		4148
2505	if (my $cb = $pkg->can ("unload")) {	4149	if (my $cb = $pkg->can ("unload")) {
2506	eval {	4150	eval {
2507	$cb->($pkg);	4151	$cb->($pkg);
2508	1	4152	1
2509	} or warn "$pkg unloaded, but with errors: $@";	4153	} or error "$pkg unloaded, but with errors: $@";
		4154	}
		4155
		4156	trace "... clearing $pkg";
		4157	clear_package $pkg;
2510	}	4158	}
2511		4159
2512	warn "... nuking $pkg";
2513	Symbol::delete_package $pkg;
2514	}
2515
2516	warn "unloading all perl modules loaded from $LIBDIR";	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2517	while (my ($k, $v) = each %INC) {	4161	while (my ($k, $v) = each %INC) {
2518	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2519		4163
2520	warn "... unloading $k";	4164	trace "... unloading $k";
2521	delete $INC{$k};	4165	delete $INC{$k};
2522		4166
2523	$k =~ s/\.pm$//;	4167	$k =~ s/\.pm$//;
2524	$k =~ s/\//::/g;	4168	$k =~ s/\//::/g;
2525		4169
2526	if (my $cb = $k->can ("unload_module")) {	4170	if (my $cb = $k->can ("unload_module")) {
2527	$cb->();	4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2528	}	4175	}
2529		4176
2530	Symbol::delete_package $k;
2531	}
2532
2533	warn "getting rid of safe::, as good as possible";	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2534	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2535	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2536		4180
2537	warn "unloading cf.pm \"a bit\"";	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2538	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
		4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2539		4184
2540	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2541	# and global variables created in xs	4186	# and global variables created in xs
2542	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2543		4188
2544	warn "unload completed, starting to reload now";	4189	info "perl_reload: unload completed, starting to reload now";
2545		4190
2546	warn "reloading cf.pm";	4191	trace "perl_reload: reloading cf.pm";
2547	require cf;	4192	require cf;
2548	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2549		4194
2550	warn "loading config and database again";	4195	trace "perl_reload: loading config and database again";
2551	cf::cfg_load;	4196	cf::reload_config;
2552		4197
2553	warn "loading extensions";	4198	trace "perl_reload: loading extensions";
2554	cf::load_extensions;	4199	cf::load_extensions;
2555		4200
		4201	if ($REATTACH_ON_RELOAD) {
2556	warn "reattaching attachments to objects/players";	4202	trace "perl_reload: reattaching attachments to objects/players";
2557	_global_reattach; # objects, sockets	4203	_global_reattach; # objects, sockets
2558	warn "reattaching attachments to maps";	4204	trace "perl_reload: reattaching attachments to maps";
2559	reattach $_ for values %MAP;	4205	reattach $_ for values %MAP;
2560	warn "reattaching attachments to players";	4206	trace "perl_reload: reattaching attachments to players";
2561	reattach $_ for values %PLAYER;	4207	reattach $_ for values %PLAYER;
		4208	}
2562		4209
2563	warn "loading reloadable resources";	4210	cf::_post_init 1;
2564	reload_resources;
2565		4211
2566	warn "leaving sync_job";	4212	trace "perl_reload: leaving sync_job";
2567		4213
2568	1	4214	1
2569	} or do {	4215	} or do {
2570	warn $@;	4216	error $@;
2571	warn "error while reloading, exiting.";	4217	cf::cleanup "perl_reload: error, exiting.";
2572	exit 1;	4218	};
		4219
		4220	--$RELOAD;
		4221	}
		4222
		4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
		4225	};
		4226
		4227	our $RELOAD_WATCHER; # used only during reload
		4228
		4229	sub reload_perl() {
		4230	# doing reload synchronously and two reloads happen back-to-back,
		4231	# coro crashes during coro_state_free->destroy here.
		4232
		4233	$RELOAD_WATCHER ||= cf::async {
		4234	Coro::AIO::aio_wait cache_extensions;
		4235
		4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4237	do_reload_perl;
		4238	undef $RELOAD_WATCHER;
		4239	};
2573	};	4240	};
2574		4241	}
2575	warn "reloaded";
2576	};
2577
2578	our $RELOAD_WATCHER; # used only during reload
2579		4242
2580	register_command "reload" => sub {	4243	register_command "reload" => sub {
2581	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2582		4245
2583	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2584	$who->message ("reloading server.");	4247	$who->message ("reloading server.");
2585		4248	async {
2586	# doing reload synchronously and two reloads happen back-to-back,	4249	$Coro::current->{desc} = "perl_reload";
2587	# coro crashes during coro_state_free->destroy here.
2588
2589	$RELOAD_WATCHER ||= Event->timer (
2590	reentrant => 0,
2591	after => 0,
2592	data => WF_AUTOCANCEL,
2593	cb => sub {
2594	reload;	4250	reload_perl;
2595	undef $RELOAD_WATCHER;
2596	},
2597	);	4251	};
2598	}	4252	}
2599	};	4253	};
2600		4254
2601	unshift @INC, $LIBDIR;	4255	#############################################################################
2602		4256
2603	my $bug_warning = 0;	4257	my $bug_warning = 0;
2604		4258
2605	$TICK_WATCHER = Event->timer (	4259	sub wait_for_tick() {
2606	reentrant => 0,	4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2607	parked => 1,	4261
2608	prio => 0,	4262	$WAIT_FOR_TICK->wait;
2609	at => $NEXT_TICK || $TICK,	4263	}
2610	data => WF_AUTOCANCEL,	4264
2611	cb => sub {	4265	sub wait_for_tick_begin() {
		4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4267
		4268	my $signal = new Coro::Signal;
		4269	push @WAIT_FOR_TICK_BEGIN, $signal;
		4270	$signal->wait;
		4271	}
		4272
		4273	sub tick {
2612	if ($Coro::current != $Coro::main) {	4274	if ($Coro::current != $Coro::main) {
2613	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4275	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2614	unless ++$bug_warning > 10;	4276	unless ++$bug_warning > 10;
2615	return;	4277	return;
2616	}	4278	}
2617		4279
2618	$NOW = Event::time;	4280	cf::one_tick; # one server iteration
2619		4281
2620	cf::server_tick; # one server iteration	4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2621	$RUNTIME += $TICK;
2622	$NEXT_TICK += $TICK;
2623		4283
2624	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2625	$NEXT_RUNTIME_WRITE = $NOW + 10;	4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2626	Coro::async_pool {	4286	Coro::async_pool {
		4287	$Coro::current->{desc} = "runtime saver";
2627	write_runtime	4288	write_runtime_sync
2628	or warn "ERROR: unable to write runtime file: $!";	4289	or error "ERROR: unable to write runtime file: $!";
2629	};
2630	}	4290	};
		4291	}
2631		4292
		4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4294	$sig->send;
		4295	}
2632	$WAIT_FOR_TICK->broadcast;	4296	$WAIT_FOR_TICK->broadcast;
2633	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2634		4297
2635	# my $AFTER = Event::time;	4298	$LOAD = ($NOW - $TICK_START) / $TICK;
2636	# warn $AFTER - $NOW;#d#	4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2637		4300
2638	# if we are delayed by four ticks or more, skip them all	4301	if (0) {
2639	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4302	if ($NEXT_TICK) {
2640		4303	my $jitter = $TICK_START - $NEXT_TICK;
2641	$TICK_WATCHER->at ($NEXT_TICK);	4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2642	$TICK_WATCHER->start;	4305	debug "jitter $JITTER\n";#d#
		4306	}
2643	},	4307	}
2644	);	4308	}
2645		4309
2646	{	4310	{
2647	BDB::max_poll_time $TICK * 0.1;	4311	# configure BDB
2648	$BDB_POLL_WATCHER = Event->io (	4312	info "initialising database";
2649	reentrant => 0,	4313
2650	fd => BDB::poll_fileno,
2651	poll => 'r',
2652	prio => 0,
2653	data => WF_AUTOCANCEL,
2654	cb => \&BDB::poll_cb,
2655	);
2656	BDB::min_parallel 8;	4314	BDB::min_parallel 16;
2657		4315	BDB::max_poll_reqs $TICK * 0.1;
2658	BDB::set_sync_prepare {	4316	#$AnyEvent::BDB::WATCHER->priority (1);
2659	my $status;
2660	my $current = $Coro::current;
2661	(
2662	sub {
2663	$status = $!;
2664	$current->ready; undef $current;
2665	},
2666	sub {
2667	Coro::schedule while defined $current;
2668	$! = $status;
2669	},
2670	)
2671	};
2672		4317
2673	unless ($DB_ENV) {	4318	unless ($DB_ENV) {
2674	$DB_ENV = BDB::db_env_create;	4319	$DB_ENV = BDB::db_env_create;
		4320	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4321	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4322	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4323	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4324	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2675		4325
2676	cf::sync_job {	4326	cf::sync_job {
2677	eval {	4327	eval {
2678	BDB::db_env_open	4328	BDB::db_env_open
2679	$DB_ENV,	4329	$DB_ENV,
2680	$BDB_ENV_DIR,	4330	$BDBDIR,
2681	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4331	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2682	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2683	0666;	4333	0666;
2684		4334
2685	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2686
2687	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2688	$DB_ENV->set_lk_detect;
2689	};	4336	};
2690		4337
2691	cf::cleanup "db_env_open(db): $@" if $@;	4338	cf::cleanup "db_env_open(db): $@" if $@;
2692	};	4339	};
2693	}	4340	}
		4341
		4342	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4343	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4344	};
		4345	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4346	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4347	};
		4348	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4349	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4350	};
		4351
		4352	info "database initialised";
2694	}	4353	}
2695		4354
2696	{	4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
2697	IO::AIO::min_parallel 8;	4359	IO::AIO::min_parallel 8;
2698
2699	undef $Coro::AIO::WATCHER;
2700	IO::AIO::max_poll_time $TICK * 0.1;	4360	IO::AIO::max_poll_time $TICK * 0.1;
2701	$AIO_POLL_WATCHER = Event->io (	4361	undef $AnyEvent::AIO::WATCHER;
2702	reentrant => 0,	4362	info "aio initialised";
2703	data => WF_AUTOCANCEL,
2704	fd => IO::AIO::poll_fileno,
2705	poll => 'r',
2706	prio => 6,
2707	cb => \&IO::AIO::poll_cb,
2708	);
2709	}	4363	}
		4364
		4365	our $_log_backtrace;
		4366	our $_log_backtrace_last;
		4367
		4368	sub _log_backtrace {
		4369	my ($msg, @addr) = @_;
		4370
		4371	$msg =~ s/\n$//;
		4372
		4373	if ($_log_backtrace_last eq $msg) {
		4374	LOG llevInfo, "[ABT] $msg\n";
		4375	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4376	# limit the # of concurrent backtraces
		4377	} elsif ($_log_backtrace < 2) {
		4378	$_log_backtrace_last = $msg;
		4379	++$_log_backtrace;
		4380	my $perl_bt = Carp::longmess $msg;
		4381	async {
		4382	$Coro::current->{desc} = "abt $msg";
		4383
		4384	my @bt = fork_call {
		4385	@addr = map { sprintf "%x", $_ } @addr;
		4386	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4387	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4388	or die "addr2line: $!";
		4389
		4390	my @funcs;
		4391	my @res = <$fh>;
		4392	chomp for @res;
		4393	while (@res) {
		4394	my ($func, $line) = splice @res, 0, 2, ();
		4395	push @funcs, "[$func] $line";
		4396	}
		4397
		4398	@funcs
		4399	};
		4400
		4401	LOG llevInfo, "[ABT] $perl_bt\n";
		4402	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4403	LOG llevInfo, "[ABT] $_\n" for @bt;
		4404	--$_log_backtrace;
		4405	};
		4406	} else {
		4407	LOG llevInfo, "[ABT] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4409	}
		4410	}
		4411
		4412	# load additional modules
		4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2710		4415
2711	END { cf::emergency_save }	4416	END { cf::emergency_save }
2712		4417
2713	1	4418	1
2714		4419

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