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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC vs.
Revision 1.599 by root, Sun Nov 11 04:29:11 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 Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	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";
38	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
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		81
47	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;
48		85
49	our %COMMAND = ();	86	our %COMMAND = ();
50	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
51		88
52	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
56		96
57	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	98	our @EVENT;
		99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
59		101
60	our $CONFDIR = confdir;	102	our $CONFDIR = confdir;
		103
61	our $DATADIR = datadir;	104	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	105	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	106	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
65	our $LOCALDIR = localdir;	109	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	113	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	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;
71		125
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	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;
77	our $NOW;	144	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		145
80	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
91		149
92	# 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 ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
95	binmode STDOUT;	166	binmode STDOUT;
96	binmode STDERR;	167	binmode STDERR;
97		168
98	# read virtual server time, if available	169	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	171	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
103	}	174	}
		175
		176	eval "sub TICK() { $TICK } 1" or die;
104		177
105	mkdir $_	178	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		180
108	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
109		182
110	sub cf::map::normalise;	183	sub cf::map::normalise;
111		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
112	#############################################################################	189	#############################################################################
113		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
114	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
115		203
116	=over 4	204	=over 4
117		205
118	=item $cf::UPTIME	206	=item $cf::UPTIME
119		207
120	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.
121		224
122	=item $cf::RUNTIME	225	=item $cf::RUNTIME
123		226
124	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
125	every server tick.	228	every server tick.
126		229
127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR	231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR	232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
130		233
131	Various directories - "/etc", read-only install directory, perl-library	234	Various directories - "/etc", read-only install directory, perl-library
132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133	unique-items directory, player file directory, random maps directory and	236	unique-items directory, player file directory, random maps directory and
134	database environment.	237	database environment.
135		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
136	=item $cf::NOW	245	=item $cf::LOAD
137		246
138	The time of the last (current) server tick.	247	The raw value load value from the last tick.
139
140	=item $cf::TICK
141
142	The interval between server ticks, in seconds.
143		248
144	=item %cf::CFG	249	=item %cf::CFG
145		250
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	252	from wherever your confdir points to.
148		253
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		255
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	256	These are functions that inhibit the current coroutine one tick.
152	returns directly I<after> the tick processing (and consequently, can only wake one process	257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
154		289
155	=back	290	=back
156		291
157	=cut	292	=cut
158		293
159	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
160	*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 {
161	my $msg = join "", @_;	301	my $msg = join "", @_;
162		302
163	$msg .= "\n"	303	$msg .= "\n"
164	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
165		305
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		307
168	utf8::encode $msg;
169	LOG llevError, $msg;	308	LOG llevWarn, $msg;
170	};	309	};
171	}	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	};
172		324
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		332
180	# 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
181	# within the Safe compartment.	334	# within the Safe compartment.
182	for my $pkg (qw(	335	for my $pkg (qw(
183	cf::global cf::attachable	336	cf::global cf::attachable
184	cf::object cf::object::player	337	cf::object cf::object::player
185	cf::client cf::player	338	cf::client cf::player
186	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
187	cf::map cf::party cf::region	341	cf::party cf::region
188	)) {	342	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	344	}
192		345
193	$Event::DIED = sub {	346	$EV::DIED = sub {
194	warn "error in event callback: @_";	347	warn "error in event callback: $@";
195	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
196		356
197	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
198		358
199	=over 4	359	=over 4
200		360
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	380	$d
221	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
222	}	382	}
223		383
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
225		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
226	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
227		437
228	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
229		439
230	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
231		441
232	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
233		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
234	=item cf::lock_wait $string	513	=item cf::lock_wait $string
235		514
236	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
237		516
238	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
239		518
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
243	returned.	522	returned.
244		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
245	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
246	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
247		529
248	=item $locked = cf::lock_active $string	530	=item $locked = cf::lock_active $string
249		531
250	Return true if the lock is currently active, i.e. somebody has locked it.	532	Return true if the lock is currently active, i.e. somebody has locked it.
251		533
252	=cut	534	=cut
253		535
254	our %LOCK;	536	our $LOCKS = new Coro::SemaphoreSet;
255		537
256	sub lock_wait($) {	538	sub lock_wait($) {
257	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	540	}
265		541
266	sub lock_acquire($) {	542	sub lock_acquire($) {
267	my ($key) = @_;	543	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	544	}
279		545
280	sub lock_active($) {	546	sub lock_active($) {
281	my ($key) = @_;	547	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	548	}
285		549
286	sub freeze_mainloop {	550	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
288		552
289	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
290	$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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
291	};	623	}
292	$TICK_WATCHER->stop;	624	};
293	$guard	625
		626	sub get_slot($;$$) {
		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	$sig->wait;
294	}	639	}
295		640
296	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
297		642
298	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		648
304	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
305		650
306	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
307		652
308	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
311		657
312	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
315	fast or be very important.	661	fast or be very important.
…		…
317	=cut	663	=cut
318		664
319	sub sync_job(&) {	665	sub sync_job(&) {
320	my ($job) = @_;	666	my ($job) = @_;
321		667
322	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
323	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
325		673
326	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	675
328	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
329		677
330	my $busy = 1;	678	my $busy = 1;
331	my @res;	679	my @res;
332		680
333	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	683	@res = eval { $job->() };
335	warn $@ if $@;	684	error $@ if $@;
336	undef $busy;	685	undef $busy;
337	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
338		687
339	while ($busy) {	688	while ($busy) {
340	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
341	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
342		699
343	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
344	} else {	701	} else {
345	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
346		703
…		…
366	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
367		724
368	$coro	725	$coro
369	}	726	}
370		727
371	sub write_runtime {	728	=item fork_call { }, @args
372	my $guard = cf::lock_acquire "write_runtime";
373		729
374	my $runtime = "$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.
375		734
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
377	or return;
378		736
379	my $value = $cf::RUNTIME + 90 + 10;	737	sub post_fork {
380	# 10 is the runtime save interval, for a monotonic clock	738	reset_signals;
381	# 60 allows for the watchdog to kill the server.	739	}
382		740
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	741	sub fork_call(&@) {
384	and return;	742	my ($cb, @args) = @_;
385		743
386	# always fsync - this file is important	744	# we seemingly have to make a local copy of the whole thing,
387	aio_fsync $fh	745	# otherwise perl prematurely frees the stuff :/
388	and return;	746	# TODO: investigate and fix (likely this will be rather laborious)
389		747
390	close $fh	748	my @res = Coro::Util::fork_eval {
391	or return;	749	cf::post_fork;
		750	&$cb
		751	} @args;
392		752
393	aio_rename "$runtime~", $runtime	753	wantarray ? @res : $res[-1]
394	and return;	754	}
395		755
		756	sub objinfo {
396	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"
397	}	920	}
398		921
399	=item cf::datalog type => key => value, ...	922	=item cf::datalog type => key => value, ...
400		923
401	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.
402		925
403	=cut	926	=cut
404		927
405	sub datalog($@) {	928	sub datalog($@) {
406	my ($type, %kv) = @_;	929	my ($type, %kv) = @_;
407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
408	}	931	}
409		932
410	=back	933	=back
411		934
412	=cut	935	=cut
413		936
414	#############################################################################	937	#############################################################################
415		938
416	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
417		940
418	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
419	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")
420	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
421		944
422	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>
423	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
424	crossfire+).	947	Deliantra).
425		948
426	=over 4	949	=over 4
427		950
428	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
429		952
…		…
473	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
474		997
475	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
477		1000
478	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
479	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.
480		1003
481	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
482		1005
483	=over 4	1006	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
593		1116
594	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		1121
599	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
601		1124
602	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
607		1130
608	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
609	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
610		1133
611	} elsif (ref $type) {	1134	} elsif (ref $type) {
612	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
613		1136
614	} else {	1137	} else {
615	shift @arg;	1138	shift @arg;
616	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
617	}	1140	}
618	}	1141	}
619	}	1142	}
620		1143
621	sub _object_attach {	1144	sub _object_attach {
…		…
631	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
632	}	1155	}
633		1156
634	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
635	} else {	1158	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
637	}	1160	}
638		1161
639	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
640	}	1163	}
641		1164
…		…
643	if (ref $_[0]) {	1166	if (ref $_[0]) {
644	_object_attach @_;	1167	_object_attach @_;
645	} else {	1168	} else {
646	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
647	}	1170	}
		1171	_recalc_want;
648	};	1172	};
649		1173
650	# all those should be optimised	1174	# all those should be optimised
651	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1180	reattach ($obj);
657	} else {	1181	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
659	}	1183	}
		1184	_recalc_want;
660	};	1185	};
661		1186
662	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
664		1189
…		…
679	";	1204	";
680	die if $@;	1205	die if $@;
681	}	1206	}
682		1207
683	our $override;	1208	our $override;
684	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?
685		1210
686	sub override {	1211	sub override {
687	$override = 1;	1212	$override = 1;
688	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
689	}	1214	}
690		1215
691	sub do_invoke {	1216	sub do_invoke {
692	my $event = shift;	1217	my $event = shift;
693	my $callbacks = shift;	1218	my $callbacks = shift;
694		1219
695	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
696		1221
697	local $override;	1222	local $override;
698		1223
699	for (@$callbacks) {	1224	for (@$callbacks) {
700	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
701		1226
702	if ($@) {	1227	if ($@) {
703	warn "$@";
704	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
705	override;	1229	override;
706	}	1230	}
707		1231
708	return 1 if $override;	1232	return 1 if $override;
709	}	1233	}
710		1234
711	0	1235	0
712	}	1236	}
713		1237
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1239
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1241
718	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
719		1243
720	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
721	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
722	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1247
724	=back	1248	=back
725		1249
726	=cut	1250	=cut
727		1251
728	#############################################################################	1252	#############################################################################
729	# 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, $ob2
		1295	}
730		1296
731	sub reattach {	1297	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1299	my ($obj) = @_;
734		1300
		1301	# no longer needed after getting rid of delete_package?
735	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
736		1303
737	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
738		1305
739	@$registry = ();	1306	@$registry = ();
740		1307
…		…
745	for (@$attach) {	1312	for (@$attach) {
746	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
747	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
748	}	1315	}
749	} else {	1316	} else {
750	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
751	}	1318	}
752	}	1319	}
753	}	1320	}
754		1321
755	cf::attachable->attach (	1322	cf::attachable->attach (
756	prio => -1000000,	1323	prio => -1000000,
757	on_instantiate => sub {	1324	on_instantiate => sub {
758	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
759		1326
760	$data = from_json $data;	1327	$data = decode_json $data;
761		1328
762	for (@$data) {	1329	for (@$data) {
763	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
764		1331
765	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1348	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
783		1350
784	sync_job {	1351	sync_job {
785	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
788		1357
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	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	}
793	close $fh;	1365	aio_close $fh;
794		1366
795	if (@$objs) {	1367	if (@$objs) {
796	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) {
797	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
800	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	}
801	close $fh;	1376	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
803	}	1378	}
804	} else {	1379	} else {
805	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
806	}	1381	}
807		1382
808	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1387	} else {
810	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
811	}	1389	}
812	} else {	1390	} else {
813	aio_unlink $filename;	1391	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
815	}	1393	}
816	}	1394	};
817	}	1395	}
818		1396
819	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
821		1399
…		…
833	or return;	1411	or return;
834		1412
835	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
837	or return;	1415	or return;
		1416
838	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
839	}	1419	}
840		1420
		1421	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
843	return ($data, $av);	1426	($data, $av)
844	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
845		1434
846	#############################################################################	1435	#############################################################################
847	# command handling &c	1436	# command handling &c
848		1437
849	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
850		1439
851	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
852	$name.	1441	$name.
853		1442
854	=cut	1443	=cut
…		…
860	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
861		1450
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1452	}
864		1453
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
866		1455
867	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.
868		1461
869	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
870	called.
871		1463
872	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
873		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$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
874	sub register_extcmd {	1486	sub register_extcmd($$) {
875	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
876		1488
877	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
878	}	1490	}
879		1491
		1492	sub register_async_extcmd($$) {
		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} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
880	cf::player->attach (	1512	cf::player->attach (
881	on_command => sub {	1513	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
883		1515
884	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
885	or return;	1517	or return;
886		1518
…		…
891	cf::override;	1523	cf::override;
892	},	1524	},
893	on_extcmd => sub {	1525	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
895		1527
896	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1529
898	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
901	$pl->ext_reply ($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);
902	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
903	}	1551	}
		1552
904	} else {	1553	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1555	}
907		1556
908	cf::override;	1557	cf::override;
909	},	1558	},
910	);	1559	);
911		1560
		1561	# "readahead" all extensions
912	sub load_extension {	1562	sub cache_extensions {
913	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
914		1564
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1568	}
940	die $@;
941	}	1569	};
942		1570
943	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;
944	}	1583	}
945		1584
946	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
947	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1594	next unless -r $path;
949	eval {	1595
950	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 $active;
		1667	}
951	1	1668	}
952	} or warn "$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	}
953	}	1681	};
954	}	1682	}
955		1683
956	#############################################################################	1684	#############################################################################
957		1685
		1686	=back
		1687
958	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
959		1689
960	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
961		1691
962	=cut	1692	=cut
963		1693
964	package cf::player;	1694	package cf::player;
965		1695
966	use Coro::AIO;	1696	use Coro::AIO;
967		1697
968	=head3 cf::player	1698	=head3 cf::player
969		1699
970	=over 4	1700	=over 4
		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	}
971		1715
972	=item cf::player::find $login	1716	=item cf::player::find $login
973		1717
974	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
975		1719
…		…
994		1738
995	sub exists($) {	1739	sub exists($) {
996	my ($login) = @_;	1740	my ($login) = @_;
997		1741
998	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1743	or !aio_stat path $login
1000	}	1744	}
1001		1745
1002	sub find($) {	1746	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1748	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1758	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1759
1016	my $pl = load_pl path $login	1760	my $f = new_from_file cf::object::thawer path $login
1017	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;
1018	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1019	}	1769	}
1020	}	1770	}
1021	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($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	);
1022		1785
1023	sub save($) {	1786	sub save($) {
1024	my ($pl) = @_;	1787	my ($pl) = @_;
1025		1788
1026	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1031	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1032		1795
1033	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1035		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
1036	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1037	Coro::cede;	1805	cf::cede_to_tick;
1038	}	1806	}
1039		1807
1040	sub new($) {	1808	sub new($) {
1041	my ($login) = @_;	1809	my ($login) = @_;
1042		1810
…		…
1048	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1049		1817
1050	$self	1818	$self
1051	}	1819	}
1052		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
1053	=item $pl->quit_character	1831	=item $pl->quit_character
1054		1832
1055	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1057		1835
…		…
1061	my ($pl) = @_;	1839	my ($pl) = @_;
1062		1840
1063	my $name = $pl->ob->name;	1841	my $name = $pl->ob->name;
1064		1842
1065	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1066	$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
1067		1845
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1069	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1071	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1072		1854
1073	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1075	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
…		…
1110	or return [];	1892	or return [];
1111		1893
1112	my @logins;	1894	my @logins;
1113		1895
1114	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") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1118		1906
1119	utf8::decode $login;	1907	utf8::decode $login;
1120	push @logins, $login;	1908	push @logins, $login;
1121	}	1909	}
1122		1910
1123	\@logins	1911	\@logins
1124	}	1912	}
1125		1913
1126	=item $player->maps	1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
1127		1917
1128	Returns an arrayref of map paths that are private for this	1918	Returns an arrayref of map paths that are private for this
1129	player. May block.	1919	player. May block.
1130		1920
1131	=cut	1921	=cut
…		…
1149	}	1939	}
1150		1940
1151	\@paths	1941	\@paths
1152	}	1942	}
1153		1943
1154	=item $player->ext_reply ($msgid, %msg)	1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1155		1945
1156	Sends an ext reply to the player.	1946	Expand deliantra pod fragments into protocol xml.
1157		1947
1158	=cut
1159
1160	sub ext_reply($$%) {
1161	my ($self, $id, %msg) = @_;
1162
1163	$msg{msgid} = $id;
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}
1167
1168	=item $player->ext_event ($type, %msg)	1948	=item $player->ext_msg ($type, @msg)
1169		1949
1170	Sends an ext event to the client.	1950	Sends an ext event to the client.
1171		1951
1172	=cut	1952	=cut
1173		1953
1174	sub ext_event($$%) {	1954	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1176		1956
1177	$self->ns->ext_event ($type, %msg);	1957	$self->ns->ext_msg ($type, @msg);
1178	}	1958	}
1179		1959
1180	=head3 cf::region	1960	=head3 cf::region
1181		1961
1182	=over 4	1962	=over 4
…		…
1185		1965
1186	package cf::region;	1966	package cf::region;
1187		1967
1188	=item cf::region::find_by_path $path	1968	=item cf::region::find_by_path $path
1189		1969
1190	Tries to decuce the probable region for a map knowing only its path.	1970	Tries to decuce the likely region for a map knowing only its path.
1191		1971
1192	=cut	1972	=cut
1193		1973
1194	sub find_by_path($) {	1974	sub find_by_path($) {
1195	my ($path) = @_;	1975	my ($path) = @_;
1196		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
1197	my ($match, $specificity);	1979	my ($match, $specificity);
1198		1980
1199	for my $region (list) {	1981	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1982	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1983	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1984	if $region->specificity > $specificity;
1203	}	1985	}
1204	}	1986	}
1205		1987
…		…
1226	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1228		2010
1229	sub generate_random_map {	2011	sub generate_random_map {
1230	my ($self, $rmp) = @_;	2012	my ($self, $rmp) = @_;
1231	# mit "rum" bekleckern, nicht	2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
1232	$self->_create_random_map (	2016	$self->_create_random_map ($rmp);
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1243	(cf::region::find $rmp->{region}), $rmp->{custom}
1244	)
1245	}	2017	}
1246		2018
1247	=item cf::map->register ($regex, $prio)	2019	=item cf::map->register ($regex, $prio)
1248		2020
1249	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
…		…
1254		2026
1255	sub register {	2027	sub register {
1256	my (undef, $regex, $prio) = @_;	2028	my (undef, $regex, $prio) = @_;
1257	my $pkg = caller;	2029	my $pkg = caller;
1258		2030
1259	no strict;
1260	push @{"$pkg\::ISA"}, __PACKAGE__;	2031	push @{"$pkg\::ISA"}, __PACKAGE__;
1261		2032
1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1263	}	2034	}
1264		2035
1265	# also paths starting with '/'	2036	# also paths starting with '/'
1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1267		2038
1268	sub thawer_merge {	2039	sub thawer_merge {
1269	my ($self, $merge) = @_;	2040	my ($self, $merge) = @_;
1270		2041
1271	# we have to keep some variables in memory intact	2042	# we have to keep some variables in memory intact
1272	local $self->{path};	2043	local $self->{path};
1273	local $self->{load_path};	2044	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		2045
1277	$self->SUPER::thawer_merge ($merge);	2046	$self->SUPER::thawer_merge ($merge);
1278	}	2047	}
1279		2048
1280	sub normalise {	2049	sub normalise {
1281	my ($path, $base) = @_;	2050	my ($path, $base) = @_;
1282		2051
1283	$path = "$path"; # make sure its a string	2052	$path = "$path"; # make sure it's a string
1284		2053
1285	$path =~ s/\.map$//;	2054	$path =~ s/\.map$//;
1286		2055
1287	# map plan:	2056	# map plan:
1288	#	2057	#
…		…
1303	$base =~ s{[^/]+/?$}{};	2072	$base =~ s{[^/]+/?$}{};
1304	$path = "$base/$path";	2073	$path = "$base/$path";
1305	}	2074	}
1306		2075
1307	for ($path) {	2076	for ($path) {
1308	redo if s{//}{/};
1309	redo if s{/\.?/}{/};	2077	redo if s{/\.?/}{/};
1310	redo if s{/[^/]+/\.\./}{/};	2078	redo if s{/[^/]+/\.\./}{/};
1311	}	2079	}
1312		2080
1313	$path	2081	$path
…		…
1327	$self->init; # pass $1 etc.	2095	$self->init; # pass $1 etc.
1328	return $self;	2096	return $self;
1329	}	2097	}
1330	}	2098	}
1331		2099
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1333	()	2101	()
1334	}	2102	}
1335		2103
		2104	# may re-bless or do other evil things
1336	sub init {	2105	sub init {
1337	my ($self) = @_;	2106	my ($self) = @_;
1338		2107
1339	$self	2108	$self
1340	}	2109	}
…		…
1359		2128
1360	# the temporary/swap location	2129	# the temporary/swap location
1361	sub save_path {	2130	sub save_path {
1362	my ($self) = @_;	2131	my ($self) = @_;
1363		2132
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	2134	"$TMPDIR/$path.map"
1366	}	2135	}
1367		2136
1368	# the unique path, undef == no special unique path	2137	# the unique path, undef == no special unique path
1369	sub uniq_path {	2138	sub uniq_path {
1370	my ($self) = @_;	2139	my ($self) = @_;
1371		2140
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	2142	"$UNIQUEDIR/$path"
1374	}	2143	}
1375		2144
1376	# and all this just because we cannot iterate over	2145	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	2146	my ($self) = @_;
1380		2147
1381	$_->change_map_light ($change)	2148	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	2149
		2150	$self->do_decay_objects;
1383	}	2151	}
1384		2152
1385	sub unlink_save {	2153	sub unlink_save {
1386	my ($self) = @_;	2154	my ($self) = @_;
1387		2155
…		…
1392		2160
1393	sub load_header_from($) {	2161	sub load_header_from($) {
1394	my ($self, $path) = @_;	2162	my ($self, $path) = @_;
1395		2163
1396	utf8::encode $path;	2164	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	2166	or return;
1402		2167
		2168	$self->_load_header ($f)
		2169	or return;
		2170
		2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
1403	$self->{load_path} = $path;	2174	$self->{load_path} = $path;
1404		2175
1405	1	2176	1
1406	}	2177	}
1407		2178
		2179	# used to laod the header of an original map
1408	sub load_header_orig {	2180	sub load_header_orig {
1409	my ($self) = @_;	2181	my ($self) = @_;
1410		2182
1411	$self->load_header_from ($self->load_path)	2183	$self->load_header_from ($self->load_path)
1412	}	2184	}
1413		2185
		2186	# used to laod the header of an instantiated map
1414	sub load_header_temp {	2187	sub load_header_temp {
1415	my ($self) = @_;	2188	my ($self) = @_;
1416		2189
1417	$self->load_header_from ($self->save_path)	2190	$self->load_header_from ($self->save_path)
1418	}	2191	}
1419		2192
		2193	# called after loading the header from an instantiated map
1420	sub prepare_temp {	2194	sub prepare_temp {
1421	my ($self) = @_;	2195	my ($self) = @_;
1422		2196
1423	$self->last_access ((delete $self->{last_access})	2197	$self->last_access ((delete $self->{last_access})
1424	|| $cf::RUNTIME); #d#	2198	|| $cf::RUNTIME); #d#
1425	# safety	2199	# safety
1426	$self->{instantiate_time} = $cf::RUNTIME	2200	$self->{instantiate_time} = $cf::RUNTIME
1427	if $self->{instantiate_time} > $cf::RUNTIME;	2201	if $self->{instantiate_time} > $cf::RUNTIME;
1428	}	2202	}
1429		2203
		2204	# called after loading the header from an original map
1430	sub prepare_orig {	2205	sub prepare_orig {
1431	my ($self) = @_;	2206	my ($self) = @_;
1432		2207
1433	$self->{load_original} = 1;	2208	$self->{load_original} = 1;
1434	$self->{instantiate_time} = $cf::RUNTIME;	2209	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1445	$self->load_header_orig	2220	$self->load_header_orig
1446	or return;	2221	or return;
1447	$self->prepare_orig;	2222	$self->prepare_orig;
1448	}	2223	}
1449		2224
		2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
		2227
1450	$self->default_region (cf::region::find_by_path $self->{path})	2228	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2229	unless $self->default_region;
1452		2230
1453	1	2231	1
1454	}	2232	}
1455		2233
1456	sub find;	2234	sub find;
1457	sub find {	2235	sub find {
1458	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1459		2237
		2238	cf::cede_to_tick;
		2239
1460	$path = normalise $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1461		2241
		2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2244
1464	$cf::MAP{$path} || do {	2245	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2246	my $map = new_from_path cf::map $path
1467	or return;	2247	or return;
1468		2248
1469	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1470		2250
1471	$map->load_header	2251	$map->load_header
1472	or return;	2252	or return;
1473		2253
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2255	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1477	$map->reset;	2259	$map->reset;
1478	undef $guard;
1479	return find $path;	2260	return find $path;
1480	}	2261	}
1481		2262
1482	$cf::MAP{$path} = $map	2263	$cf::MAP{$path} = $map
1483	}	2264	}
1484	}	2265	}
1485		2266
1486	sub pre_load { }	2267	sub pre_load { }
1487	sub post_load { }	2268	#sub post_load { } # XS
1488		2269
1489	sub load {	2270	sub load {
1490	my ($self) = @_;	2271	my ($self) = @_;
1491		2272
1492	local $self->{deny_reset} = 1; # loading can take a long time	2273	local $self->{deny_reset} = 1; # loading can take a long time
1493		2274
1494	my $path = $self->{path};	2275	my $path = $self->{path};
1495		2276
1496	{	2277	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2278	my $guard = cf::lock_acquire "map_data:$path";
1498		2279
		2280	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2281	return unless $self->state == cf::MAP_SWAPPED;
1500
1501	$self->in_memory (cf::MAP_LOADING);
1502		2282
1503	$self->alloc;	2283	$self->alloc;
1504		2284
1505	$self->pre_load;	2285	$self->pre_load;
1506	Coro::cede;	2286	cf::cede_to_tick;
1507		2287
1508	$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)
1509	or return;	2292	or return;
1510		2293
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1512	if delete $self->{load_original};	2295	if delete $self->{load_original};
1513		2296
1514	if (my $uniq = $self->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2298	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2301	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1519	}	2306	}
1520	}
1521		2307
1522	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1523	# now do the right thing for maps	2317	# now do the right thing for maps
1524	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2320	unless $self->difficulty;
1527	Coro::cede;	2321	cf::cede_to_tick;
1528		2322
1529	unless ($self->{deny_activate}) {	2323	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2324	$self->decay_objects;
1531	$self->fix_auto_apply;	2325	$self->fix_auto_apply;
1532	$self->update_buttons;	2326	$self->update_buttons;
1533	Coro::cede;	2327	cf::cede_to_tick;
1534	$self->set_darkness_map;	2328	#$self->activate; # no longer activate maps automatically
1535	Coro::cede;
1536	$self->activate;
1537	}	2329	}
1538		2330
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2331	$self->{last_save} = $cf::RUNTIME;
1540		2332	$self->last_access ($cf::RUNTIME);
1541	undef $guard;
1542	}	2333	}
1543		2334
1544	$self->post_load;	2335	$self->post_load;
1545	}
1546		2336
		2337	1
		2338	}
		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
1547	sub customise_for {	2343	sub customise_for {
1548	my ($self, $ob) = @_;	2344	my ($self, $ob) = @_;
1549		2345
1550	return find "~" . $ob->name . "/" . $self->{path}	2346	return find "~" . $ob->name . "/" . $self->{path}
1551	if $self->per_player;	2347	if $self->per_player;
1552		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
1553	$self	2352	$self
1554	}
1555
1556	# find and load all maps in the 3x3 area around a map
1557	sub load_diag {
1558	my ($map) = @_;
1559
1560	my @diag; # diagonal neighbours
1561
1562	for (0 .. 3) {
1563	my $neigh = $map->tile_path ($_)
1564	or next;
1565	$neigh = find $neigh, $map
1566	or next;
1567	$neigh->load;
1568
1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1571	}
1572
1573	for (@diag) {
1574	my $neigh = find @$_
1575	or next;
1576	$neigh->load;
1577	}
1578	}	2353	}
1579		2354
1580	sub find_sync {	2355	sub find_sync {
1581	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1582		2357
1583	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
1584	}	2363	}
1585		2364
1586	sub do_load_sync {	2365	sub do_load_sync {
1587	my ($map) = @_;	2366	my ($map) = @_;
1588		2367
1589	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;
1590	}	2373	}
1591		2374
1592	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
1593	our $MAP_PREFETCHER = undef;	2376	our $MAP_PREFETCHER = undef;
1594		2377
1595	sub find_async {	2378	sub find_async {
1596	my ($path, $origin) = @_;	2379	my ($path, $origin, $load) = @_;
1597		2380
1598	$path = normalise $path, $origin && $origin->{path};	2381	$path = normalise $path, $origin;
1599		2382
1600	if (my $map = $cf::MAP{$path}) {	2383	if (my $map = $cf::MAP{$path}) {
1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2384	return $map if !$load || $map->linkable;
1602	}	2385	}
1603		2386
1604	undef $MAP_PREFETCH{$path};	2387	$MAP_PREFETCH{$path} |= $load;
		2388
1605	$MAP_PREFETCHER ||= cf::async {	2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
1606	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1607	for my $path (keys %MAP_PREFETCH) {	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1608	my $map = find $path	2394	if (my $map = find $k) {
1609	or next;
1610	$map->load;	2395	$map->load if $v;
		2396	}
1611		2397
1612	delete $MAP_PREFETCH{$path};	2398	delete $MAP_PREFETCH{$k};
1613	}	2399	}
1614	}	2400	}
1615	undef $MAP_PREFETCHER;	2401	undef $MAP_PREFETCHER;
1616	};	2402	};
1617	$MAP_PREFETCHER->prio (6);	2403	$MAP_PREFETCHER->prio (6);
1618		2404
1619	()	2405	()
1620	}	2406	}
1621		2407
		2408	# common code, used by both ->save and ->swapout
1622	sub save {	2409	sub _save {
1623	my ($self) = @_;	2410	my ($self) = @_;
1624
1625	my $lock = cf::lock_acquire "map_data:" . $self->path;
1626		2411
1627	$self->{last_save} = $cf::RUNTIME;	2412	$self->{last_save} = $cf::RUNTIME;
1628		2413
1629	return unless $self->dirty;	2414	return unless $self->dirty;
1630		2415
…		…
1636	return if $self->{deny_save};	2421	return if $self->{deny_save};
1637		2422
1638	local $self->{last_access} = $self->last_access;#d#	2423	local $self->{last_access} = $self->last_access;#d#
1639		2424
1640	cf::async {	2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
1641	$_->contr->save for $self->players;	2427	$_->contr->save for $self->players;
1642	};	2428	};
		2429
		2430	cf::get_slot 0.02;
1643		2431
1644	if ($uniq) {	2432	if ($uniq) {
1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1647	} else {	2435	} else {
1648	$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);
1649	}	2437	}
1650	}	2438	}
1651		2439
		2440	sub save {
		2441	my ($self) = @_;
		2442
		2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2444
		2445	$self->_save;
		2446	}
		2447
1652	sub swap_out {	2448	sub swap_out {
1653	my ($self) = @_;	2449	my ($self) = @_;
1654		2450
1655	# save first because save cedes
1656	$self->save;
1657
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1660	return if $self->players;	2455	return if $self->players;
1661	return if $self->in_memory != cf::MAP_IN_MEMORY;
1662	return if $self->{deny_save};
1663		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
1664	$self->clear;	2466	$self->clear;
1665	$self->in_memory (cf::MAP_SWAPPED);
1666	}	2467	}
1667		2468
1668	sub reset_at {	2469	sub reset_at {
1669	my ($self) = @_;	2470	my ($self) = @_;
1670		2471
1671	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1673	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1674		2474
1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1676	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;
1677		2477
…		…
1688	my ($self) = @_;	2488	my ($self) = @_;
1689		2489
1690	my $lock = cf::lock_acquire "map_data:$self->{path}";	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1691		2491
1692	return if $self->players;	2492	return if $self->players;
1693	return if $self->isa ("ext::map_per_player");#d#
1694		2493
1695	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
1696		2495
1697	$self->in_memory (cf::MAP_SWAPPED);	2496	$self->state (cf::MAP_SWAPPED);
1698		2497
1699	# need to save uniques path	2498	# need to save uniques path
1700	unless ($self->{deny_save}) {	2499	unless ($self->{deny_save}) {
1701	my $uniq = $self->uniq_path; utf8::encode $uniq;	2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
1702		2501
…		…
1704	if $uniq;	2503	if $uniq;
1705	}	2504	}
1706		2505
1707	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1708		2507
		2508	$self->deactivate;
		2509	$_->clear_links_to ($self) for values %cf::MAP;
1709	$self->clear;	2510	$self->clear;
1710
1711	$_->clear_links_to ($self) for values %cf::MAP;
1712		2511
1713	$self->unlink_save;	2512	$self->unlink_save;
1714	$self->destroy;	2513	$self->destroy;
1715	}	2514	}
1716		2515
1717	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1718		2517
1719	sub nuke {	2518	sub nuke {
1720	my ($self) = @_;	2519	my ($self) = @_;
1721		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
1722	delete $cf::MAP{$self->path};	2524	delete $cf::MAP{$self->path};
1723		2525
1724	$self->unlink_save;	2526	$self->unlink_save;
1725		2527
1726	bless $self, "cf::map";	2528	bless $self, "cf::map::wrap";
1727	delete $self->{deny_reset};	2529	delete $self->{deny_reset};
1728	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1729	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1731		2533
1732	$cf::MAP{$self->path} = $self;	2534	$cf::MAP{$self->path} = $self;
		2535	}
1733		2536
1734	$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	]
1735	}	2574	}
1736		2575
1737	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1738		2577
1739	Returns an arrayref of paths of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1740	instantiated unique items. May block.	2579	instantiated unique items. May block.
1741		2580
1742	=cut	2581	=cut
1743		2582
1744	sub unique_maps() {	2583	sub unique_maps() {
1745	my $files = aio_readdir $UNIQUEDIR	2584	[
1746	or return;	2585	map {
1747
1748	my @paths;
1749
1750	for (@$files) {
1751	utf8::decode $_;	2586	utf8::decode $_;
1752	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1753	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1754		2589	? ()
1755	push @paths, cf::map::normalise $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1756	}	2592	]
1757
1758	\@paths
1759	}	2593	}
1760		2594
1761	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	}
1762		2626
1763	=back	2627	=back
1764		2628
1765	=head3 cf::object	2629	=head3 cf::object
1766		2630
…		…
1770		2634
1771	=over 4	2635	=over 4
1772		2636
1773	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1774		2638
1775	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.
1776		2641
1777	=cut	2642	=cut
1778		2643
1779	sub inv_recursive_;	2644	sub inv_recursive_;
1780	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1783		2648
1784	sub inv_recursive {	2649	sub inv_recursive {
1785	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1786	}	2651	}
1787		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
1788	package cf;	2681	package cf;
1789		2682
1790	=back	2683	=back
1791		2684
1792	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1798	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>
1799	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
1800	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1801		2694
1802	=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	};
1803		2710
1804	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1805	# with dialog boxes.	2712	# with dialog boxes.
1806	#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
1807	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1809		2716
1810	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1811		2718
1812	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1813	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1814	} 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 {
1815	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1816	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1817	}	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 (@_);
1818	}	2744	}
1819		2745
1820	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1821		2747
1822	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1835		2761
1836	=item $player_object->enter_link	2762	=item $player_object->enter_link
1837		2763
1838	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}>).
1839		2765
1840	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.
1841	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.
1842		2770
1843	Will never block.	2771	Will never block.
1844		2772
1845	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1846		2774
…		…
1866	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1867	my ($self) = @_;	2795	my ($self) = @_;
1868		2796
1869	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1870		2798
		2799	++$self->{_link_recursion};
		2800
1871	return if UNIVERSAL::isa $self->map, "ext::map_link";	2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1872		2802
1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1874	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1875		2805
1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1877	}	2807	}
1878		2808
1879	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1880	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1881		2813
1882	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1883		2815
1884	unless ($map) {	2816	unless ($map) {
1885	# restore original map position	2817	# restore original map position
…		…
1896	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1897	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1898		2830
1899	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1900	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1901	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1902		2834
1903	$map->load;	2835	$map->load;
1904	$map->load_diag;
1905		2836
1906	return unless $self->contr->active;	2837	return unless $self->contr->active;
1907	$self->activate_recursive;
1908		2838
1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1910	$self->enter_map ($map, $x, $y);	2840	if ($self->enter_map ($map, $x, $y)) {
1911	}	2841	# entering was successful
1912		2842	delete $self->{_link_recursion};
1913	cf::player->attach (	2843	# only activate afterwards, to support waiting in hooks
1914	on_logout => sub {	2844	$self->activate_recursive;
1915	my ($pl) = @_;
1916
1917	# abort map switching before logout
1918	if ($pl->ob->{_link_pos}) {
1919	cf::sync_job {
1920	$pl->ob->leave_link
1921	};
1922	}
1923	},	2845	}
1924	on_login => sub {
1925	my ($pl) = @_;
1926		2846
1927	# try to abort aborted map switching on player login :)	2847	}
1928	# should happen only on crashes
1929	if ($pl->ob->{_link_pos}) {
1930	$pl->ob->enter_link;
1931	(async {
1932	$pl->ob->reply (undef,
1933	"There was an internal problem at your last logout, "
1934	. "the server will try to bring you to your intended destination in a second.",
1935	cf::NDI_RED);
1936	# we need this sleep as the login has a concurrent enter_exit running
1937	# and this sleep increases chances of the player not ending up in scorn
1938	Coro::Timer::sleep 1;
1939	$pl->ob->leave_link;
1940	})->prio (2);
1941	}
1942	},
1943	);
1944		2848
1945	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1946		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
1947	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1948		2863
1949	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1950	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;
1951		2875
1952	$self->enter_link;	2876	$self->enter_link;
1953		2877
1954	(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
1955	my $map = eval {	2900	my $map = eval {
1956	my $map = cf::map::find $path;	2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1957	$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
1958	$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 $@;
1959	} or	2916	}
1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1961		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1962	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1963	})->prio (1);	2924	})->prio (1);
1964	}	2925	}
1965		2926
1966	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1967		2928
…		…
1987	}	2948	}
1988		2949
1989	sub prepare_random_map {	2950	sub prepare_random_map {
1990	my ($exit) = @_;	2951	my ($exit) = @_;
1991		2952
1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1993
1994	# all this does is basically replace the /! path by	2953	# all this does is basically replace the /! path by
1995	# a new random map path (?random/...) with a seed	2954	# a new random map path (?random/...) with a seed
1996	# that depends on the exit object	2955	# that depends on the exit object
1997		2956
1998	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
…		…
2000	if ($exit->map) {	2959	if ($exit->map) {
2001	$rmp->{region} = $exit->region->name;	2960	$rmp->{region} = $exit->region->name;
2002	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
2003	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
2004	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
2005	}	2966	}
2006		2967
2007	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
2008		2969
2009	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2010	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
2011	my $meta = "$RANDOMDIR/$md5.meta";	2972	my $meta = "$RANDOMDIR/$md5.meta";
2012		2973
2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2014	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
2015	undef $fh;	2976	undef $fh;
2016	aio_rename "$meta~", $meta;	2977	aio_rename "$meta~", $meta;
2017		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
2018	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
2019	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
2020	}	2985	}
2021	}	2986	}
2022		2987
2023	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
2024	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
2025		2990
2026	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
2027		2992
2028	if ($exit->slaying eq "/!") {
2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
2030	# the problem is that $exit might not survive long enough
2031	# so it needs to be done right now, right here
2032	cf::sync_job { prepare_random_map $exit };
2033	}
2034
2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2036	my $hp = $exit->stats->hp;
2037	my $sp = $exit->stats->sp;
2038
2039	$self->enter_link;	2993	$self->enter_link;
2040		2994
2041	(async {	2995	(async {
2042	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
2043	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
2044	$self->goto ($slaying, $hp, $sp);	3028	$self->goto ($map, $x, $y);
2045		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
2046	1;	3034	1
2047	}) {	3035	}) {
2048	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
2049	. "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. "
2050	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
2051	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
2052		3040
2053	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
2054	$self->leave_link;	3042	$self->leave_link;
2055	}	3043	}
2056	})->prio (1);	3044	})->prio (1);
2057	}	3045	}
2058		3046
…		…
2072		3060
2073	utf8::encode $text;	3061	utf8::encode $text;
2074	$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);
2075	}	3063	}
2076		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
2077	=item $client->ext_event ($type, %msg)	3252	=item $client->ext_msg ($type, @msg)
2078		3253
2079	Sends an exti event to the client.	3254	Sends an ext event to the client.
2080		3255
2081	=cut	3256	=cut
2082		3257
2083	sub cf::client::ext_event($$%) {	3258	sub cf::client::ext_msg($$@) {
2084	my ($self, $type, %msg) = @_;	3259	my ($self, $type, @msg) = @_;
2085		3260
2086	$msg{msgtype} = "event_$type";	3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2087	$self->send_packet ("ext " . cf::to_json \%msg);
2088	}	3262	}
2089		3263
2090	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
2091		3265
2092	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
2093	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>,
2094	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>.
2095		3269
2096	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
2097	reliable at some point in the future.	3271	become reliable at some point in the future.
2098		3272
2099	=cut	3273	=cut
2100		3274
2101	sub cf::client::query {	3275	sub cf::client::query {
2102	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
2110	utf8::encode $text;	3284	utf8::encode $text;
2111	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2112		3286
2113	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
2114	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
2115	}	3291	}
2116		3292
2117	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	},
2118	on_reply => sub {	3299	on_reply => sub {
2119	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
2120		3301
2121	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
2122	# get handled first	3303	# get handled first
…		…
2134	} else {	3315	} else {
2135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2136	}	3317	}
2137	}	3318	}
2138	},	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	},
2139	);	3353	);
2140		3354
2141	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2142		3356
2143	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2159		3373
2160	$coro	3374	$coro
2161	}	3375	}
2162		3376
2163	cf::client->attach (	3377	cf::client->attach (
2164	on_destroy => sub {	3378	on_client_destroy => sub {
2165	my ($ns) = @_;	3379	my ($ns) = @_;
2166		3380
2167	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2168	},	3382	},
2169	);	3383	);
…		…
2184	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2185	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2186		3400
2187	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2188		3402
2189	$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	));
2190		3408
2191	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2192		3410
2193	=pod	3411	=pod
2194		3412
2195	The following functions and methods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2196		3414
2197	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
2198	cf::object::player player	3420	cf::object::player
2199	cf::player peaceful	3421	player
2200	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2201		3428
2202	=cut	3429	=cut
2203		3430
2204	for (	3431	for (
2205	["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)],
2206	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2207	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2208	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2209	) {	3438	) {
2210	no strict 'refs';
2211	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2212	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2213	for @funs;	3441	for @funs;
2214	}	3442	}
2215		3443
…		…
2230		3458
2231	my $qcode = $code;	3459	my $qcode = $code;
2232	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2233	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2234		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2235	local $_;	3466	local $_;
2236	local @safe::cf::_safe_eval_args = values %vars;
2237		3467
2238	my $eval =	3468	my $eval =
2239	"do {\n"	3469	"do {\n"
2240	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2241	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2242	. $code	3472	. $code
2243	. "\n}"	3473	. "\n}"
2244	;	3474	;
2245		3475
		3476	if ($CFG{safe_eval}) {
2246	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2247	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2248	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	}
2249		3485
2250	if ($@) {	3486	if ($@) {
2251	warn "$@";	3487	warn "$@",
2252	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2253	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2254	}	3490	}
2255		3491
2256	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2257	}	3493	}
2258		3494
…		…
2272	=cut	3508	=cut
2273		3509
2274	sub register_script_function {	3510	sub register_script_function {
2275	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2276		3512
2277	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2278	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2279	}	3515	}
2280		3516
2281	=back	3517	=back
2282		3518
2283	=cut	3519	=cut
2284
2285	#############################################################################
2286
2287	=head2 EXTENSION DATABASE SUPPORT
2288
2289	Crossfire maintains a very simple database for extension use. It can
2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2291	convert to/from binary).
2292
2293	The parameter C<$family> should best start with the name of the extension
2294	using it, it should be unique.
2295
2296	=over 4
2297
2298	=item $value = cf::db_get $family => $key
2299
2300	Returns a single value from the database.
2301
2302	=item cf::db_put $family => $key => $value
2303
2304	Stores the given C<$value> in the family.
2305
2306	=cut
2307
2308	our $DB;
2309
2310	sub db_init {
2311	unless ($DB) {
2312	$DB = BDB::db_create $DB_ENV;
2313
2314	cf::sync_job {
2315	eval {
2316	$DB->set_flags (BDB::CHKSUM);
2317
2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2320	cf::cleanup "db_open(db): $!" if $!;
2321	};
2322	cf::cleanup "db_open(db): $@" if $@;
2323	};
2324	}
2325	}
2326
2327	sub db_get($$) {
2328	my $key = "$_[0]/$_[1]";
2329
2330	cf::sync_job {
2331	BDB::db_get $DB, undef, $key, my $data;
2332
2333	$! ? ()
2334	: $data
2335	}
2336	}
2337
2338	sub db_put($$$) {
2339	BDB::dbreq_pri 4;
2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2341	}
2342
2343	=item cf::cache $id => [$paths...], $processversion => $process
2344
2345	Generic caching function that returns the value of the resource $id,
2346	caching and regenerating as required.
2347
2348	This function can block.
2349
2350	=cut
2351
2352	sub cache {
2353	my ($id, $src, $processversion, $process) = @_;
2354
2355	my $meta =
2356	join "\x00",
2357	$processversion,
2358	map {
2359	aio_stat $_
2360	and Carp::croak "$_: $!";
2361
2362	($_, (stat _)[7,9])
2363	} @$src;
2364
2365	my $dbmeta = db_get cache => "$id/meta";
2366	if ($dbmeta ne $meta) {
2367	# changed, we may need to process
2368
2369	my @data;
2370	my $md5;
2371
2372	for (0 .. $#$src) {
2373	0 <= aio_load $src->[$_], $data[$_]
2374	or Carp::croak "$src->[$_]: $!";
2375	}
2376
2377	# if processing is expensive, check
2378	# checksum first
2379	if (1) {
2380	$md5 =
2381	join "\x00",
2382	$processversion,
2383	map {
2384	Coro::cede;
2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
2386	} 0.. $#$src;
2387
2388
2389	my $dbmd5 = db_get cache => "$id/md5";
2390	if ($dbmd5 eq $md5) {
2391	db_put cache => "$id/meta", $meta;
2392
2393	return db_get cache => "$id/data";
2394	}
2395	}
2396
2397	my $t1 = Time::HiRes::time;
2398	my $data = $process->(\@data);
2399	my $t2 = Time::HiRes::time;
2400
2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2402
2403	db_put cache => "$id/data", $data;
2404	db_put cache => "$id/md5" , $md5;
2405	db_put cache => "$id/meta", $meta;
2406
2407	return $data;
2408	}
2409
2410	db_get cache => "$id/data"
2411	}
2412
2413	=item fork_call { }, $args
2414
2415	Executes the given code block with the given arguments in a seperate
2416	process, returning the results. Everything must be serialisable with
2417	Coro::Storable. May, of course, block. Note that the executed sub may
2418	never block itself or use any form of Event handling.
2419
2420	=cut
2421
2422	sub fork_call(&@) {
2423	my ($cb, @args) = @_;
2424
2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2426	# or die "socketpair: $!";
2427	pipe my $fh1, my $fh2
2428	or die "pipe: $!";
2429
2430	if (my $pid = fork) {
2431	close $fh2;
2432
2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2434	$res = Coro::Storable::thaw $res;
2435
2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2437
2438	die $$res unless "ARRAY" eq ref $res;
2439
2440	return wantarray ? @$res : $res->[-1];
2441	} else {
2442	local $SIG{__WARN__};
2443	eval {
2444	local $SIG{__DIE__};
2445	close $fh1;
2446
2447	my @res = eval { $cb->(@args) };
2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2449	};
2450
2451	warn $@ if $@;
2452	_exit 0;
2453	}
2454	}
2455
2456
2457		3520
2458	#############################################################################	3521	#############################################################################
2459	# the server's init and main functions	3522	# the server's init and main functions
2460		3523
		3524	our %FACEHASH; # hash => idx, #d# HACK for http server
		3525	our @FACEDATA; # dynamically-created facedata
		3526
		3527	# internal api, not fianlised
		3528	sub set_face {
		3529	my ($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
2461	sub load_facedata($) {	3596	sub load_facedata($) {
2462	my ($path) = @_;	3597	my ($path) = @_;
2463		3598
		3599	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3600
2464	warn "loading facedata from $path\n";	3601	trace "loading facedata from $path\n";
2465		3602
2466	my $facedata;	3603	my $facedata = decode_storable load_file "$path/faceinfo";
2467	0 < aio_load $path, $facedata
2468	or die "$path: $!";
2469
2470	$facedata = Coro::Storable::thaw $facedata;
2471		3604
2472	$facedata->{version} == 2	3605	$facedata->{version} == 2
2473	or cf::cleanup "$path: version mismatch, cannot proceed.";	3606	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3607
		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;
2474		3616
2475	{	3617	{
2476	my $faces = $facedata->{faceinfo};	3618	my $faces = $facedata->{faceinfo};
2477		3619
2478	while (my ($face, $info) = each %$faces) {	3620	for my $face (sort keys %$faces) {
		3621	my $info = $faces->{$face};
2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3622	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3623
2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3624	cf::face::set_visibility $idx, $info->{visibility};
		3625	cf::face::set_magicmap $idx, $info->{magicmap};
		3626	cf::face::set_data $idx, 0, $info->{size32}, $info->{fofs32}, $info->{hash32};
		3627	cf::face::set_data $idx, 1, $info->{size64}, $info->{fofs64}, $info->{hash64};
2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3628	#cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3629	$FACEHASH{$info->{hash64}} = $idx;#d#
2483	Coro::cede;
2484	}	3630	}
2485		3631
2486	while (my ($face, $info) = each %$faces) {	3632	while (my ($face, $info) = each %$faces) {
2487	next unless $info->{smooth};	3633	next unless $info->{smooth};
		3634
2488	my $idx = cf::face::find $face	3635	my $idx = cf::face::find $face
2489	or next;	3636	or next;
		3637
2490	if (my $smooth = cf::face::find $info->{smooth}) {	3638	if (my $smooth = cf::face::find $info->{smooth}) {
		3639	cf::face::set_smooth $idx, $smooth;
2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3640	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2492	} else {	3641	} else {
2493	warn "smooth face '$info->{smooth}' not found for face '$face'";	3642	error "smooth face '$info->{smooth}' not found for face '$face'";
2494	}	3643	}
2495	Coro::cede;
2496	}	3644	}
2497	}	3645	}
2498		3646
2499	{	3647	{
2500	my $anims = $facedata->{animinfo};	3648	my $anims = $facedata->{animinfo};
2501		3649
2502	while (my ($anim, $info) = each %$anims) {	3650	while (my ($anim, $info) = each %$anims) {
2503	cf::anim::set $anim, $info->{frames}, $info->{facings};	3651	cf::anim::set $anim, $info->{frames}, $info->{facings};
2504	Coro::cede;
2505	}	3652	}
2506		3653
2507	cf::anim::invalidate_all; # d'oh	3654	cf::anim::invalidate_all; # d'oh
2508	}	3655	}
2509		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
2510	1	3689	1
2511	}	3690	}
2512		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
2513	sub reload_regions {	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
2514	load_resource_file "$MAPDIR/regions"	3728	load_resource_file "$MAPDIR/regions"
2515	or die "unable to load regions file\n";	3729	or die "unable to load regions file\n";
		3730
		3731	for (cf::region::list) {
		3732	$_->{match} = qr/$_->{match}/
		3733	if exists $_->{match};
		3734	}
2516	}	3735	}
2517		3736
2518	sub reload_facedata {	3737	sub reload_facedata {
2519	load_facedata "$DATADIR/facedata"	3738	load_facedata $DATADIR
2520	or die "unable to load facedata\n";	3739	or die "unable to load facedata\n";
2521	}	3740	}
2522		3741
2523	sub reload_archetypes {	3742	sub reload_archetypes {
2524	load_resource_file "$DATADIR/archetypes"	3743	load_resource_file "$DATADIR/archetypes"
2525	or die "unable to load archetypes\n";	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	);
2526	}	3754	}
2527		3755
2528	sub reload_treasures {	3756	sub reload_treasures {
2529	load_resource_file "$DATADIR/treasures"	3757	load_resource_file "$DATADIR/treasures"
2530	or die "unable to load treasurelists\n";	3758	or die "unable to load treasurelists\n";
2531	}	3759	}
2532		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}[$_]
		3768	or next;
		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
		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	}
		3779	}
		3780
2533	sub reload_resources {	3781	sub reload_resources {
2534	warn "reloading resource files...\n";	3782	trace "reloading resource files...\n";
2535		3783
		3784	reload_materials;
		3785	reload_facedata;
		3786	reload_exp_table;
		3787	reload_sound;
		3788	reload_archetypes;
2536	reload_regions;	3789	reload_regions;
2537	reload_facedata;
2538	reload_archetypes;
2539	reload_treasures;	3790	reload_treasures;
2540		3791
2541	warn "finished reloading resource files\n";	3792	trace "finished reloading resource files\n";
2542	}	3793	}
2543		3794
2544	sub init {	3795	sub reload_config {
2545	reload_resources;	3796	trace "reloading config file...\n";
2546	}
2547		3797
2548	sub cfg_load {	3798	my $config = load_file "$CONFDIR/config";
2549	open my $fh, "<:utf8", "$CONFDIR/config"	3799	utf8::decode $config;
2550	or return;	3800	*CFG = decode_yaml $config;
2551		3801
2552	local $/;
2553	*CFG = YAML::Syck::Load <$fh>;
2554
2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2556		3803
2557	$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};
2558	$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};
2559		3806
2560	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
…		…
2564	};	3811	};
2565	warn $@ if $@;	3812	warn $@ if $@;
2566	}	3813	}
2567	}	3814	}
2568		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
2569	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
2570	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2571	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2572	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#
2573	(async {	3857	(async {
2574	Event::one_event;	3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3859	EV::loop EV::LOOP_ONESHOT;
2575	})->prio (Coro::PRIO_MAX);	3860	})->prio (Coro::PRIO_MAX);
2576	};	3861	};
2577		3862
2578	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
		3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
2579	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
2580	load_extensions;	3887	load_extensions;
2581		3888
2582	$TICK_WATCHER->start;	3889	utime time, time, $RUNTIMEFILE;
2583	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;
2584	}	3906	}
2585		3907
2586	#############################################################################	3908	#############################################################################
2587	# initialisation and cleanup	3909	# initialisation and cleanup
2588		3910
2589	# install some emergency cleanup handlers	3911	# install some emergency cleanup handlers
2590	BEGIN {	3912	BEGIN {
		3913	our %SIGWATCHER = ();
2591	for my $signal (qw(INT HUP TERM)) {	3914	for my $signal (qw(INT HUP TERM)) {
2592	Event->signal (	3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2593	reentrant => 0,
2594	data => WF_AUTOCANCEL,
2595	signal => $signal,
2596	prio => 0,
2597	cb => sub {
2598	cf::cleanup "SIG$signal";	3916	cf::cleanup "SIG$signal";
2599	},
2600	);	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
2601	}	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 };
2602	}	4007	}
2603		4008
2604	sub emergency_save() {	4009	sub emergency_save() {
2605	my $freeze_guard = cf::freeze_mainloop;	4010	my $freeze_guard = cf::freeze_mainloop;
2606		4011
2607	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;
2608		4018
2609	cf::sync_job {	4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
2610	# use a peculiar iteration method to avoid tripping on perl	4022	# use a peculiar iteration method to avoid tripping on perl
2611	# refcount bugs in for. also avoids problems with players	4023	# refcount bugs in for. also avoids problems with players
2612	# and maps saved/destroyed asynchronously.	4024	# and maps saved/destroyed asynchronously.
2613	warn "begin emergency player save\n";	4025	info "emergency_perl_save: begin player save\n";
2614	for my $login (keys %cf::PLAYER) {	4026	for my $login (keys %cf::PLAYER) {
2615	my $pl = $cf::PLAYER{$login} or next;	4027	my $pl = $cf::PLAYER{$login} or next;
2616	$pl->valid or next;	4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2617	$pl->save;	4030	$pl->save;
2618	}	4031	}
2619	warn "end emergency player save\n";	4032	info "emergency_perl_save: end player save\n";
2620		4033
2621	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";
2622	for my $path (keys %cf::MAP) {	4037	for my $path (keys %cf::MAP) {
2623	my $map = $cf::MAP{$path} or next;	4038	my $map = $cf::MAP{$path} or next;
2624	$map->valid or next;	4039	$map->valid or next;
2625	$map->save;	4040	$map->save;
2626	}	4041	}
2627	warn "end emergency map save\n";	4042	info "emergency_perl_save: end map save\n";
2628		4043
2629	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";
2630	BDB::db_env_txn_checkpoint $DB_ENV;	4047	BDB::db_env_txn_checkpoint $DB_ENV;
2631	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
2632	};	4072	};
2633		4073
2634	warn "leave emergency perl save\n";	4074	info "emergency_perl_save: leave\n";
2635	}	4075	}
2636		4076
2637	sub post_cleanup {	4077	sub post_cleanup {
2638	my ($make_core) = @_;	4078	my ($make_core) = @_;
2639		4079
		4080	IO::AIO::flush;
		4081
2640	warn Carp::longmess "post_cleanup backtrace"	4082	error Carp::longmess "post_cleanup backtrace"
2641	if $make_core;	4083	if $make_core;
		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	}
2642	}	4112	}
2643		4113
2644	sub do_reload_perl() {	4114	sub do_reload_perl() {
2645	# can/must only be called in main	4115	# can/must only be called in main
2646	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2647	warn "can only reload from main coroutine";	4117	error "can only reload from main coroutine";
2648	return;	4118	return;
2649	}	4119	}
2650		4120
2651	warn "reloading...";	4121	return if $RELOAD++;
2652		4122
2653	warn "entering sync_job";	4123	my $t1 = AE::time;
2654		4124
		4125	while ($RELOAD) {
		4126	cf::get_slot 0.1, -1, "reload_perl";
		4127	info "perl_reload: reloading...";
		4128
		4129	trace "perl_reload: entering sync_job";
		4130
2655	cf::sync_job {	4131	cf::sync_job {
2656	cf::write_runtime; # external watchdog should not bark
2657	cf::emergency_save;	4132	#cf::emergency_save;
2658	cf::write_runtime; # external watchdog should not bark
2659		4133
2660	warn "syncing database to disk";
2661	BDB::db_env_txn_checkpoint $DB_ENV;
2662
2663	# if anything goes wrong in here, we should simply crash as we already saved
2664
2665	warn "cancelling all WF_AUTOCANCEL watchers";
2666	for (Event::all_watchers) {
2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2668	}
2669
2670	warn "flushing outstanding aio requests";
2671	for (;;) {
2672	BDB::flush;
2673	IO::AIO::flush;
2674	Coro::cede;
2675	last unless IO::AIO::nreqs || BDB::nreqs;
2676	warn "iterate...";
2677	}
2678
2679	++$RELOAD;
2680
2681	warn "cancelling all extension coros";	4134	trace "perl_reload: cancelling all extension coros";
2682	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2683	%EXT_CORO = ();	4136	%EXT_CORO = ();
2684		4137
2685	warn "removing commands";	4138	trace "perl_reload: removing commands";
2686	%COMMAND = ();	4139	%COMMAND = ();
2687		4140
2688	warn "removing ext commands";	4141	trace "perl_reload: removing ext/exti commands";
2689	%EXTCMD = ();	4142	%EXTCMD = ();
		4143	%EXTICMD = ();
2690		4144
2691	warn "unloading/nuking all extensions";	4145	trace "perl_reload: unloading/nuking all extensions";
2692	for my $pkg (@EXTS) {	4146	for my $pkg (@EXTS) {
2693	warn "... unloading $pkg";	4147	trace "... unloading $pkg";
2694		4148
2695	if (my $cb = $pkg->can ("unload")) {	4149	if (my $cb = $pkg->can ("unload")) {
2696	eval {	4150	eval {
2697	$cb->($pkg);	4151	$cb->($pkg);
2698	1	4152	1
2699	} 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;
2700	}	4158	}
2701		4159
2702	warn "... nuking $pkg";
2703	Symbol::delete_package $pkg;
2704	}
2705
2706	warn "unloading all perl modules loaded from $LIBDIR";	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2707	while (my ($k, $v) = each %INC) {	4161	while (my ($k, $v) = each %INC) {
2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2709		4163
2710	warn "... unloading $k";	4164	trace "... unloading $k";
2711	delete $INC{$k};	4165	delete $INC{$k};
2712		4166
2713	$k =~ s/\.pm$//;	4167	$k =~ s/\.pm$//;
2714	$k =~ s/\//::/g;	4168	$k =~ s/\//::/g;
2715		4169
2716	if (my $cb = $k->can ("unload_module")) {	4170	if (my $cb = $k->can ("unload_module")) {
2717	$cb->();	4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2718	}	4175	}
2719		4176
2720	Symbol::delete_package $k;
2721	}
2722
2723	warn "getting rid of safe::, as good as possible";	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2724	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2725	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);
2726		4180
2727	warn "unloading cf.pm \"a bit\"";	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2728	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
2729	delete $INC{"cf/pod.pm"};	4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2730		4184
2731	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2732	# and global variables created in xs	4186	# and global variables created in xs
2733	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2734		4188
2735	warn "unload completed, starting to reload now";	4189	info "perl_reload: unload completed, starting to reload now";
2736		4190
2737	warn "reloading cf.pm";	4191	trace "perl_reload: reloading cf.pm";
2738	require cf;	4192	require cf;
2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2740		4194
2741	warn "loading config and database again";	4195	trace "perl_reload: loading config and database again";
2742	cf::cfg_load;	4196	cf::reload_config;
2743		4197
2744	warn "loading extensions";	4198	trace "perl_reload: loading extensions";
2745	cf::load_extensions;	4199	cf::load_extensions;
2746		4200
		4201	if ($REATTACH_ON_RELOAD) {
2747	warn "reattaching attachments to objects/players";	4202	trace "perl_reload: reattaching attachments to objects/players";
2748	_global_reattach; # objects, sockets	4203	_global_reattach; # objects, sockets
2749	warn "reattaching attachments to maps";	4204	trace "perl_reload: reattaching attachments to maps";
2750	reattach $_ for values %MAP;	4205	reattach $_ for values %MAP;
2751	warn "reattaching attachments to players";	4206	trace "perl_reload: reattaching attachments to players";
2752	reattach $_ for values %PLAYER;	4207	reattach $_ for values %PLAYER;
		4208	}
2753		4209
2754	warn "leaving sync_job";	4210	cf::_post_init 1;
2755		4211
		4212	trace "perl_reload: leaving sync_job";
		4213
2756	1	4214	1
2757	} or do {	4215	} or do {
2758	warn $@;	4216	error $@;
2759	warn "error while reloading, exiting.";	4217	cf::cleanup "perl_reload: error, exiting.";
2760	exit 1;	4218	};
		4219
		4220	--$RELOAD;
2761	};	4221	}
2762		4222
2763	warn "reloaded";	4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
2764	};	4225	};
2765		4226
2766	our $RELOAD_WATCHER; # used only during reload	4227	our $RELOAD_WATCHER; # used only during reload
2767		4228
2768	sub reload_perl() {	4229	sub reload_perl() {
2769	# doing reload synchronously and two reloads happen back-to-back,	4230	# doing reload synchronously and two reloads happen back-to-back,
2770	# coro crashes during coro_state_free->destroy here.	4231	# coro crashes during coro_state_free->destroy here.
2771		4232
2772	$RELOAD_WATCHER ||= Event->timer (	4233	$RELOAD_WATCHER ||= cf::async {
2773	reentrant => 0,	4234	Coro::AIO::aio_wait cache_extensions;
2774	after => 0,	4235
2775	data => WF_AUTOCANCEL,	4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2776	cb => sub {
2777	do_reload_perl;	4237	do_reload_perl;
2778	undef $RELOAD_WATCHER;	4238	undef $RELOAD_WATCHER;
2779	},	4239	};
2780	);	4240	};
2781	}	4241	}
2782		4242
2783	register_command "reload" => sub {	4243	register_command "reload" => sub {
2784	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2785		4245
2786	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2787	$who->message ("reloading server.");	4247	$who->message ("reloading server.");
		4248	async {
		4249	$Coro::current->{desc} = "perl_reload";
2788	async { reload_perl };	4250	reload_perl;
		4251	};
2789	}	4252	}
2790	};	4253	};
2791		4254
2792	unshift @INC, $LIBDIR;	4255	#############################################################################
2793		4256
2794	my $bug_warning = 0;	4257	my $bug_warning = 0;
2795		4258
2796	our @WAIT_FOR_TICK;
2797	our @WAIT_FOR_TICK_BEGIN;
2798
2799	sub wait_for_tick {	4259	sub wait_for_tick() {
2800	return unless $TICK_WATCHER->is_active;	4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2801	return if $Coro::current == $Coro::main;
2802		4261
2803	my $signal = new Coro::Signal;	4262	$WAIT_FOR_TICK->wait;
2804	push @WAIT_FOR_TICK, $signal;
2805	$signal->wait;
2806	}	4263	}
2807		4264
2808	sub wait_for_tick_begin {	4265	sub wait_for_tick_begin() {
2809	return unless $TICK_WATCHER->is_active;	4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2810	return if $Coro::current == $Coro::main;
2811		4267
2812	my $signal = new Coro::Signal;	4268	my $signal = new Coro::Signal;
2813	push @WAIT_FOR_TICK_BEGIN, $signal;	4269	push @WAIT_FOR_TICK_BEGIN, $signal;
2814	$signal->wait;	4270	$signal->wait;
2815	}	4271	}
2816		4272
2817	$TICK_WATCHER = Event->timer (	4273	sub tick {
2818	reentrant => 0,
2819	parked => 1,
2820	prio => 0,
2821	at => $NEXT_TICK || $TICK,
2822	data => WF_AUTOCANCEL,
2823	cb => sub {
2824	if ($Coro::current != $Coro::main) {	4274	if ($Coro::current != $Coro::main) {
2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4275	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2826	unless ++$bug_warning > 10;	4276	unless ++$bug_warning > 10;
2827	return;	4277	return;
2828	}	4278	}
2829		4279
2830	$NOW = Event::time;	4280	cf::one_tick; # one server iteration
2831		4281
2832	cf::server_tick; # one server iteration	4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2833		4283
2834	$RUNTIME += $TICK;
2835	$NEXT_TICK += $TICK;
2836
2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2838	$NEXT_RUNTIME_WRITE = $NOW + 10;	4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2839	Coro::async_pool {	4286	Coro::async_pool {
		4287	$Coro::current->{desc} = "runtime saver";
2840	write_runtime	4288	write_runtime_sync
2841	or warn "ERROR: unable to write runtime file: $!";	4289	or error "ERROR: unable to write runtime file: $!";
2842	};
2843	}	4290	};
		4291	}
2844		4292
2845	# my $AFTER = Event::time;
2846	# warn $AFTER - $NOW;#d#
2847
2848	# if we are delayed by four ticks or more, skip them all
2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2850
2851	$TICK_WATCHER->at ($NEXT_TICK);
2852	$TICK_WATCHER->start;
2853
2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2855	$sig->send;	4294	$sig->send;
2856	}
2857	while (my $sig = shift @WAIT_FOR_TICK) {
2858	$sig->send;
2859	}
2860
2861	_post_tick;
2862	},	4295	}
2863	);	4296	$WAIT_FOR_TICK->broadcast;
		4297
		4298	$LOAD = ($NOW - $TICK_START) / $TICK;
		4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4300
		4301	if (0) {
		4302	if ($NEXT_TICK) {
		4303	my $jitter = $TICK_START - $NEXT_TICK;
		4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4305	debug "jitter $JITTER\n";#d#
		4306	}
		4307	}
		4308	}
2864		4309
2865	{	4310	{
2866	BDB::max_poll_time $TICK * 0.1;	4311	# configure BDB
2867	$BDB_POLL_WATCHER = Event->io (	4312	info "initialising database";
2868	reentrant => 0,	4313
2869	fd => BDB::poll_fileno,
2870	poll => 'r',
2871	prio => 0,
2872	data => WF_AUTOCANCEL,
2873	cb => \&BDB::poll_cb,
2874	);
2875	BDB::min_parallel 8;	4314	BDB::min_parallel 16;
2876		4315	BDB::max_poll_reqs $TICK * 0.1;
2877	BDB::set_sync_prepare {	4316	#$AnyEvent::BDB::WATCHER->priority (1);
2878	my $status;
2879	my $current = $Coro::current;
2880	(
2881	sub {
2882	$status = $!;
2883	$current->ready; undef $current;
2884	},
2885	sub {
2886	Coro::schedule while defined $current;
2887	$! = $status;
2888	},
2889	)
2890	};
2891		4317
2892	unless ($DB_ENV) {	4318	unless ($DB_ENV) {
2893	$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);
2894		4325
2895	cf::sync_job {	4326	cf::sync_job {
2896	eval {	4327	eval {
2897	BDB::db_env_open	4328	BDB::db_env_open
2898	$DB_ENV,	4329	$DB_ENV,
…		…
2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4331	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2902	0666;	4333	0666;
2903		4334
2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2905
2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2907	$DB_ENV->set_lk_detect;
2908	};	4336	};
2909		4337
2910	cf::cleanup "db_env_open(db): $@" if $@;	4338	cf::cleanup "db_env_open(db): $@" if $@;
2911	};	4339	};
2912	}	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";
2913	}	4353	}
2914		4354
2915	{	4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
2916	IO::AIO::min_parallel 8;	4359	IO::AIO::min_parallel 8;
2917
2918	undef $Coro::AIO::WATCHER;
2919	IO::AIO::max_poll_time $TICK * 0.1;	4360	IO::AIO::max_poll_time $TICK * 0.1;
2920	$AIO_POLL_WATCHER = Event->io (	4361	undef $AnyEvent::AIO::WATCHER;
2921	reentrant => 0,	4362	info "aio initialised";
2922	data => WF_AUTOCANCEL,	4363	}
2923	fd => IO::AIO::poll_fileno,	4364
2924	poll => 'r',	4365	our $_log_backtrace;
2925	prio => 6,	4366	our $_log_backtrace_last;
2926	cb => \&IO::AIO::poll_cb,	4367
2927	);	4368	sub _log_backtrace {
		4369	my ($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] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4409	}
2928	}	4410	}
2929		4411
2930	# load additional modules	4412	# load additional modules
2931	use cf::pod;	4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2932		4415
2933	END { cf::emergency_save }	4416	END { cf::emergency_save }
2934		4417
2935	1	4418	1
2936		4419

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