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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.577 by root, Tue Jan 3 11:25:33 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 Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	56	use Fcntl;
29	use YAML::Syck ();	57	use YAML::XS ();
30	use IO::AIO 2.32 ();	58	use IO::AIO ();
31	use Time::HiRes;	59	use Time::HiRes;
32	use Compress::LZF;	60	use Compress::LZF;
		61	use Digest::MD5 ();
		62
		63	AnyEvent::detect;
33		64
34	# configure various modules to our taste	65	# configure various modules to our taste
35	#	66	#
36	$Storable::canonical = 1; # reduce rsync transfers	67	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		75
40	$Event::Eval = 1; # no idea why this is required, but it is	76	# strictly for debugging
41		77	$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		78
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
		98
61	our $DATADIR = datadir;	99	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	100	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	101	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
65	our $LOCALDIR = localdir;	104	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	108	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
71		120
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	121	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	122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
77	our $NOW;	138	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		139
80	our $BDB_POLL_WATCHER;	140	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	141	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	142	our $LINK_MAP; # the special {link} map, which is always available
91		143
92	# used to convert map paths into valid unix filenames by replacing / by ∕	144	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		146
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	148	our $LOADAVG; # same thing, but with alpha-smoothing
		149	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
98		159
99	binmode STDOUT;	160	binmode STDOUT;
100	binmode STDERR;	161	binmode STDERR;
101		162
102	# read virtual server time, if available	163	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	165	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
107	}	168	}
		169
		170	eval "sub TICK() { $TICK } 1" or die;
108		171
109	mkdir $_	172	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		174
112	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
113		176
114	sub cf::map::normalise;	177	sub cf::map::normalise;
115		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
116	#############################################################################	183	#############################################################################
117		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
118	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
119		197
120	=over 4	198	=over 4
121		199
122	=item $cf::UPTIME	200	=item $cf::UPTIME
123		201
124	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
125		218
126	=item $cf::RUNTIME	219	=item $cf::RUNTIME
127		220
128	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
129	every server tick.	222	every server tick.
…		…
135	Various directories - "/etc", read-only install directory, perl-library	228	Various directories - "/etc", read-only install directory, perl-library
136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
137	unique-items directory, player file directory, random maps directory and	230	unique-items directory, player file directory, random maps directory and
138	database environment.	231	database environment.
139		232
140	=item $cf::NOW
141
142	The time of the last (current) server tick.
143
144	=item $cf::TICK
145
146	The interval between server ticks, in seconds.
147
148	=item $cf::LOADAVG	233	=item $cf::LOADAVG
149		234
150	The current CPU load on the server (alpha-smoothed), as a value between 0	235	The current CPU load on the server (alpha-smoothed), as a value between 0
151	(none) and 1 (overloaded), indicating how much time is spent on processing	236	(none) and 1 (overloaded), indicating how much time is spent on processing
152	objects per tick. Healthy values are < 0.5.	237	objects per tick. Healthy values are < 0.5.
…		…
155		240
156	The raw value load value from the last tick.	241	The raw value load value from the last tick.
157		242
158	=item %cf::CFG	243	=item %cf::CFG
159		244
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	246	from wherever your confdir points to.
162		247
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	248	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		249
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	251	returns directly I<after> the tick processing (and consequently, can only wake one thread
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
169	=back	283	=back
170		284
171	=cut	285	=cut
172		286
173	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	294	my $msg = join "", @_;
176		295
177	$msg .= "\n"	296	$msg .= "\n"
178	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
179		298
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		300
182	utf8::encode $msg;
183	LOG llevError, $msg;	301	LOG llevWarn, $msg;
184	};	302	};
185	}	303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
186		317
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	328	for my $pkg (qw(
198	cf::global cf::attachable	329	cf::global cf::attachable
199	cf::object cf::object::player	330	cf::object cf::object::player
200	cf::client cf::player	331	cf::client cf::player
201	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
202	cf::map cf::party cf::region	334	cf::party cf::region
203	)) {	335	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	337	}
207		338
208	$Event::DIED = sub {	339	$EV::DIED = sub {
209	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
210	};	341	};
		342
		343	#############################################################################
		344
		345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
211		349
212	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
213		351
214	=over 4	352	=over 4
215		353
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	373	$d
236	} || "[unable to dump $_[0]: '$@']";	374	} || "[unable to dump $_[0]: '$@']";
237	}	375	}
238		376
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	377	=item $scalar = load_file $path
240		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
241	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
242		392
243	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
244		394
245	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
246		396
247	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
248		398
		399	=cut
		400
		401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		402
		403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
		466	}
		467
249	=item cf::lock_wait $string	468	=item cf::lock_wait $string
250		469
251	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
252		471
253	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
254		473
255	Wait until the given lock is available and then acquires it and returns	474	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
258	returned.	477	returned.
259		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
260	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
262		484
263	=item $locked = cf::lock_active $string	485	=item $locked = cf::lock_active $string
264		486
265	Return true if the lock is currently active, i.e. somebody has locked it.	487	Return true if the lock is currently active, i.e. somebody has locked it.
266		488
267	=cut	489	=cut
268		490
269	our %LOCK;	491	our $LOCKS = new Coro::SemaphoreSet;
270		492
271	sub lock_wait($) {	493	sub lock_wait($) {
272	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	495	}
280		496
281	sub lock_acquire($) {	497	sub lock_acquire($) {
282	my ($key) = @_;	498	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	499	}
294		500
295	sub lock_active($) {	501	sub lock_active($) {
296	my ($key) = @_;	502	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	503	}
300		504
301	sub freeze_mainloop {	505	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	506	tick_inhibit_inc;
303		507
304	my $guard = Coro::guard {	508	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	509	}
		510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
306	};	578	}
307	$TICK_WATCHER->stop;	579	};
308	$guard	580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
309	}	594	}
310		595
311	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
312		597
313	Currently the same as Coro::async_pool, meaning you cannot use	598	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		603
319	BEGIN { *async = \&Coro::async_pool }	604	BEGIN { *async = \&Coro::async_pool }
320		605
321	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
322		607
323	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	609	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
326		612
327	If it must be done, put the blocking parts into C<sync_job>. This will run	613	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	614	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	615	server will be frozen during this time, so the block should either finish
330	fast or be very important.	616	fast or be very important.
…		…
332	=cut	618	=cut
333		619
334	sub sync_job(&) {	620	sub sync_job(&) {
335	my ($job) = @_;	621	my ($job) = @_;
336		622
337	if ($Coro::current == $Coro::main) {	623	if (in_main) {
338	my $time = Event::time;	624	my $time = AE::time;
339		625
340	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
342		628
343	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	630
345	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
346		632
347	my $busy = 1;	633	my $busy = 1;
348	my @res;	634	my @res;
349		635
350	(async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	638	@res = eval { $job->() };
352	warn $@ if $@;	639	error $@ if $@;
353	undef $busy;	640	undef $busy;
354	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
355		642
356	while ($busy) {	643	while ($busy) {
357	Coro::cede or Event::one_event;	644	if (Coro::nready) {
		645	Coro::cede_notself;
		646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
358	}	648	}
		649	}
359		650
360	$time = Event::time - $time;	651	my $time = AE::time - $time;
361		652
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	653	$TICK_START += $time; # do not account sync jobs to server load
366		654
367	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
368	} else {	656	} else {
369	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
370		658
…		…
390	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
391		679
392	$coro	680	$coro
393	}	681	}
394		682
395	sub write_runtime {	683	=item fork_call { }, @args
396	my $runtime = "$LOCALDIR/runtime";
397		684
398	# first touch the runtime file to show we are still running:	685	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
400		689
401	IO::AIO::aio_utime $runtime, undef, undef;	690	=cut
402		691
403	my $guard = cf::lock_acquire "write_runtime";	692	sub post_fork {
		693	reset_signals;
		694	}
404		695
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	696	sub fork_call(&@) {
406	or return;	697	my ($cb, @args) = @_;
407		698
408	my $value = $cf::RUNTIME + 90 + 10;	699	# we seemingly have to make a local copy of the whole thing,
409	# 10 is the runtime save interval, for a monotonic clock	700	# otherwise perl prematurely frees the stuff :/
410	# 60 allows for the watchdog to kill the server.	701	# TODO: investigate and fix (likely this will be rather laborious)
411		702
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	703	my @res = Coro::Util::fork_eval {
413	and return;	704	cf::post_fork;
		705	&$cb
		706	} @args;
414		707
415	# always fsync - this file is important	708	wantarray ? @res : $res[-1]
416	aio_fsync $fh	709	}
417	and return;
418		710
419	# touch it again to show we are up-to-date	711	sub objinfo {
420	aio_utime $fh, undef, undef;
421
422	close $fh
423	or return;
424
425	aio_rename "$runtime~", $runtime
426	and return;
427
428	warn "runtime file written.\n";
429
430	1	712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
431	}	875	}
432		876
433	=item cf::datalog type => key => value, ...	877	=item cf::datalog type => key => value, ...
434		878
435	Log a datalog packet of the given type with the given key-value pairs.	879	Log a datalog packet of the given type with the given key-value pairs.
436		880
437	=cut	881	=cut
438		882
439	sub datalog($@) {	883	sub datalog($@) {
440	my ($type, %kv) = @_;	884	my ($type, %kv) = @_;
441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
442	}	886	}
443		887
444	=back	888	=back
445		889
446	=cut	890	=cut
447		891
448	#############################################################################	892	#############################################################################
449		893
450	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
451		895
452	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
455		899
456	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	902	Deliantra).
459		903
460	=over 4	904	=over 4
461		905
462	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
463		907
…		…
507	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
508		952
509	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
511		955
512	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
514		958
515	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
516		960
517	=over 4	961	=over 4
…		…
641		1085
642	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
643	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
644		1088
645	} elsif (ref $type) {	1089	} elsif (ref $type) {
646	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
647		1091
648	} else {	1092	} else {
649	shift @arg;	1093	shift @arg;
650	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
651	}	1095	}
652	}	1096	}
653	}	1097	}
654		1098
655	sub _object_attach {	1099	sub _object_attach {
…		…
665	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
666	}	1110	}
667		1111
668	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
669	} else {	1113	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
671	}	1115	}
672		1116
673	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
674	}	1118	}
675		1119
…		…
715	";	1159	";
716	die if $@;	1160	die if $@;
717	}	1161	}
718		1162
719	our $override;	1163	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1165
722	sub override {	1166	sub override {
723	$override = 1;	1167	$override = 1;
724	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
725	}	1169	}
726		1170
727	sub do_invoke {	1171	sub do_invoke {
728	my $event = shift;	1172	my $event = shift;
729	my $callbacks = shift;	1173	my $callbacks = shift;
730		1174
731	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
732		1176
733	local $override;	1177	local $override;
734		1178
735	for (@$callbacks) {	1179	for (@$callbacks) {
736	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
737		1181
738	if ($@) {	1182	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1184	override;
742	}	1185	}
743		1186
744	return 1 if $override;	1187	return 1 if $override;
745	}	1188	}
746		1189
747	0	1190	0
748	}	1191	}
749		1192
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1194
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1196
754	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
755		1198
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1202
760	=back	1203	=back
761		1204
762	=cut	1205	=cut
763		1206
764	#############################################################################	1207	#############################################################################
765	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
766		1251
767	sub reattach {	1252	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1254	my ($obj) = @_;
770		1255
		1256	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1258
773	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
774		1260
775	@$registry = ();	1261	@$registry = ();
776		1262
…		…
781	for (@$attach) {	1267	for (@$attach) {
782	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
783	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
784	}	1270	}
785	} else {	1271	} else {
786	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
787	}	1273	}
788	}	1274	}
789	}	1275	}
790		1276
791	cf::attachable->attach (	1277	cf::attachable->attach (
792	prio => -1000000,	1278	prio => -1000000,
793	on_instantiate => sub {	1279	on_instantiate => sub {
794	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
795		1281
796	$data = from_json $data;	1282	$data = decode_json $data;
797		1283
798	for (@$data) {	1284	for (@$data) {
799	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
800		1286
801	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1303	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
819		1305
820	sync_job {	1306	sync_job {
821	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
824		1312
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1316	if ($cf::USE_FSYNC) {
		1317	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1318	aio_fsync $fh;
		1319	}
829	close $fh;	1320	aio_close $fh;
830		1321
831	if (@$objs) {	1322	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1327	if ($cf::USE_FSYNC) {
		1328	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1329	aio_fsync $fh;
		1330	}
837	close $fh;	1331	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
839	}	1333	}
840	} else {	1334	} else {
841	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
842	}	1336	}
843		1337
844	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1342	} else {
846	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
847	}	1344	}
848	} else {	1345	} else {
849	aio_unlink $filename;	1346	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
851	}	1348	}
852	}	1349	};
853	}	1350	}
854		1351
855	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
857		1354
…		…
869	or return;	1366	or return;
870		1367
871	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
873	or return;	1370	or return;
		1371
874	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
875	}	1374	}
876		1375
		1376	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
879	return ($data, $av);	1381	($data, $av)
880	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
881		1389
882	#############################################################################	1390	#############################################################################
883	# command handling &c	1391	# command handling &c
884		1392
885	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1407	}
900		1408
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1410
903	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
904		1416
905	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
906	called.	1418	called.
907		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
908	=cut	1431	=cut
909		1432
910	sub register_extcmd {	1433	sub register_extcmd {
911	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
912		1435
913	$EXTCMD{$name} = $cb;	1436	$EXTCMD{$name} = $cb;
914	}	1437	}
915		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
		1446
916	cf::player->attach (	1447	cf::player->attach (
917	on_command => sub {	1448	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
919		1450
920	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
921	or return;	1452	or return;
922		1453
…		…
927	cf::override;	1458	cf::override;
928	},	1459	},
929	on_extcmd => sub {	1460	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
931		1462
932	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1464
934	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
940	} else {	1477	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1479	}
943		1480
944	cf::override;	1481	cf::override;
945	},	1482	},
946	);	1483	);
947		1484
		1485	# "readahead" all extensions
		1486	sub cache_extensions {
		1487	my $grp = IO::AIO::aio_group;
		1488
		1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1490	for (grep /\.ext$/, @{$_[0]}) {
		1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1492	}
		1493	};
		1494
		1495	$grp
		1496	}
		1497
948	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
949	cf::sync_job {	1501	cf::sync_job {
950	my %todo;	1502	my %todo;
951		1503
952	for my $path (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
953	next unless -r $path;	1505	next unless -r $path;
…		…
967	path => $path,	1519	path => $path,
968	base => $base,	1520	base => $base,
969	pkg => $pkg,	1521	pkg => $pkg,
970	);	1522	);
971		1523
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1524	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;	1525	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
974		1526
975	$ext{source} =	1527	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1528	"package $pkg; use common::sense;\n"
977	. "#line 1 \"$path\"\n{\n"	1529	. "#line 1 \"$path\"\n{\n"
978	. $source	1530	. $source
979	. "\n};\n1";	1531	. "\n};\n1";
980		1532
981	$todo{$base} = \%ext;	1533	$todo{$base} = \%ext;
982	}	1534	}
983		1535
		1536	my $pass = 0;
984	my %done;	1537	my %done;
985	while (%todo) {	1538	while (%todo) {
986	my $progress;	1539	my $progress;
987		1540
		1541	++$pass;
		1542
		1543	ext:
988	while (my ($k, $v) = each %todo) {	1544	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1545	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1546	next ext
991	unless exists $done{$_};	1547	unless exists $done{$_};
992	}	1548	}
993		1549
994	warn "... loading '$k' into '$v->{pkg}'\n";	1550	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
995		1551
996	unless (eval $v->{source}) {	1552	my $active = eval $v->{source};
		1553
		1554	if (length $@) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1555	error "$v->{path}: $@\n";
998	: "extension disabled.\n";
999		1556
		1557	cf::cleanup "mandatory extension '$k' failed to load, exiting."
1000	if (exists $v->{meta}{mandatory}) {	1558	if exists $v->{meta}{mandatory};
1001	warn $msg;	1559
1002	warn "mandatory extension failed to load, exiting.\n";	1560	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1003	exit 1;	1561	delete $todo{$k};
1004	}	1562	} else {
1005		1563	$done{$k} = delete $todo{$k};
1006	die $msg;	1564	push @EXTS, $v->{pkg};
		1565	$progress = 1;
		1566
		1567	info "$v->{base}: extension inactive.\n"
		1568	unless $active;
1007	}	1569	}
1008
1009	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};
1011	}	1570	}
1012		1571
1013	skip:	1572	unless ($progress) {
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1573	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1015	unless $progress;	1574
		1575	while (my ($k, $v) = each %todo) {
		1576	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1577	if exists $v->{meta}{mandatory};
		1578	}
		1579
		1580	last;
		1581	}
1016	}	1582	}
1017	};	1583	};
1018	}	1584	}
1019		1585
1020	#############################################################################	1586	#############################################################################
1021		1587
		1588	=back
		1589
1022	=head2 CORE EXTENSIONS	1590	=head2 CORE EXTENSIONS
1023		1591
1024	Functions and methods that extend core crossfire objects.	1592	Functions and methods that extend core deliantra objects.
1025		1593
1026	=cut	1594	=cut
1027		1595
1028	package cf::player;	1596	package cf::player;
1029		1597
1030	use Coro::AIO;	1598	use Coro::AIO;
1031		1599
1032	=head3 cf::player	1600	=head3 cf::player
1033		1601
1034	=over 4	1602	=over 4
		1603
		1604	=item cf::player::num_playing
		1605
		1606	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1607
		1608	=cut
		1609
		1610	sub num_playing {
		1611	scalar grep
		1612	$_->ob->map
		1613	&& !$_->hidden
		1614	&& !$_->ob->flag (cf::FLAG_WIZ),
		1615	cf::player::list
		1616	}
1035		1617
1036	=item cf::player::find $login	1618	=item cf::player::find $login
1037		1619
1038	Returns the given player object, loading it if necessary (might block).	1620	Returns the given player object, loading it if necessary (might block).
1039		1621
…		…
1058		1640
1059	sub exists($) {	1641	sub exists($) {
1060	my ($login) = @_;	1642	my ($login) = @_;
1061		1643
1062	$cf::PLAYER{$login}	1644	$cf::PLAYER{$login}
1063	or cf::sync_job { !aio_stat path $login }	1645	or !aio_stat path $login
1064	}	1646	}
1065		1647
1066	sub find($) {	1648	sub find($) {
1067	return $cf::PLAYER{$_[0]} || do {	1649	return $cf::PLAYER{$_[0]} || do {
1068	my $login = $_[0];	1650	my $login = $_[0];
…		…
1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1657	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1658	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1659	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1078	aio_unlink +(playerdir $login) . "/$login.pl";	1660	aio_unlink +(playerdir $login) . "/$login.pl";
1079		1661
1080	my $pl = load_pl path $login	1662	my $f = new_from_file cf::object::thawer path $login
1081	or return;	1663	or return;
		1664
		1665	my $pl = cf::player::load_pl $f
		1666	or return;
		1667
		1668	local $cf::PLAYER_LOADING{$login} = $pl;
		1669	$f->resolve_delayed_derefs;
1082	$cf::PLAYER{$login} = $pl	1670	$cf::PLAYER{$login} = $pl
1083	}	1671	}
1084	}	1672	}
1085	}	1673	}
		1674
		1675	cf::player->attach (
		1676	on_load => sub {
		1677	my ($pl, $path) = @_;
		1678
		1679	# restore slots saved in save, below
		1680	my $slots = delete $pl->{_slots};
		1681
		1682	$pl->ob->current_weapon ($slots->[0]);
		1683	$pl->combat_ob ($slots->[1]);
		1684	$pl->ranged_ob ($slots->[2]);
		1685	},
		1686	);
1086		1687
1087	sub save($) {	1688	sub save($) {
1088	my ($pl) = @_;	1689	my ($pl) = @_;
1089		1690
1090	return if $pl->{deny_save};	1691	return if $pl->{deny_save};
…		…
1095	return if $pl->{deny_save};	1696	return if $pl->{deny_save};
1096		1697
1097	aio_mkdir playerdir $pl, 0770;	1698	aio_mkdir playerdir $pl, 0770;
1098	$pl->{last_save} = $cf::RUNTIME;	1699	$pl->{last_save} = $cf::RUNTIME;
1099		1700
		1701	cf::get_slot 0.01;
		1702
		1703	# save slots, to be restored later
		1704	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1705
1100	$pl->save_pl ($path);	1706	$pl->save_pl ($path);
1101	Coro::cede;	1707	cf::cede_to_tick;
1102	}	1708	}
1103		1709
1104	sub new($) {	1710	sub new($) {
1105	my ($login) = @_;	1711	my ($login) = @_;
1106		1712
…		…
1112	$cf::PLAYER{$login} = $self;	1718	$cf::PLAYER{$login} = $self;
1113		1719
1114	$self	1720	$self
1115	}	1721	}
1116		1722
		1723	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1724
		1725	=cut
		1726
		1727	sub send_msg {
		1728	my $ns = shift->ns
		1729	or return;
		1730	$ns->send_msg (@_);
		1731	}
		1732
1117	=item $pl->quit_character	1733	=item $pl->quit_character
1118		1734
1119	Nukes the player without looking back. If logged in, the connection will	1735	Nukes the player without looking back. If logged in, the connection will
1120	be destroyed. May block for a long time.	1736	be destroyed. May block for a long time.
1121		1737
…		…
1125	my ($pl) = @_;	1741	my ($pl) = @_;
1126		1742
1127	my $name = $pl->ob->name;	1743	my $name = $pl->ob->name;
1128		1744
1129	$pl->{deny_save} = 1;	1745	$pl->{deny_save} = 1;
1130	$pl->password ("*"); # this should lock out the player until we nuked the dir	1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1131		1747
1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1133	$pl->deactivate;	1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
1135	$pl->ns->destroy if $pl->ns;	1755	$pl->ns->destroy if $pl->ns;
1136		1756
1137	my $path = playerdir $pl;	1757	my $path = playerdir $pl;
1138	my $temp = "$path~$cf::RUNTIME~deleting~";	1758	my $temp = "$path~$cf::RUNTIME~deleting~";
1139	aio_rename $path, $temp;	1759	aio_rename $path, $temp;
…		…
1174	or return [];	1794	or return [];
1175		1795
1176	my @logins;	1796	my @logins;
1177		1797
1178	for my $login (@$dirs) {	1798	for my $login (@$dirs) {
		1799	my $path = path $login;
		1800
		1801	# a .pst is a dead give-away for a valid player
		1802	# if no pst file found, open and chekc for blocked users
		1803	if (aio_stat "$path.pst") {
1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1180	aio_read $fh, 0, 512, my $buf, 0 or next;	1805	aio_read $fh, 0, 512, my $buf, 0 or next;
1181	$buf !~ /^password -------------$/m or next; # official not-valid tag	1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
1182		1808
1183	utf8::decode $login;	1809	utf8::decode $login;
1184	push @logins, $login;	1810	push @logins, $login;
1185	}	1811	}
1186		1812
1187	\@logins	1813	\@logins
1188	}	1814	}
1189		1815
1190	=item $player->maps	1816	=item $player->maps
		1817
		1818	=item cf::player::maps $login
1191		1819
1192	Returns an arrayref of map paths that are private for this	1820	Returns an arrayref of map paths that are private for this
1193	player. May block.	1821	player. May block.
1194		1822
1195	=cut	1823	=cut
…		…
1213	}	1841	}
1214		1842
1215	\@paths	1843	\@paths
1216	}	1844	}
1217		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
1218	=item $player->ext_reply ($msgid, %msg)	1850	=item $player->ext_reply ($msgid, @msg)
1219		1851
1220	Sends an ext reply to the player.	1852	Sends an ext reply to the player.
1221		1853
1222	=cut	1854	=cut
1223		1855
1224	sub ext_reply($$%) {	1856	sub ext_reply($$@) {
1225	my ($self, $id, %msg) = @_;	1857	my ($self, $id, @msg) = @_;
1226		1858
1227	$msg{msgid} = $id;	1859	$self->ns->ext_reply ($id, @msg)
1228
1229	$self->send ("ext " . cf::to_json \%msg);
1230	}	1860	}
1231		1861
1232	=item $player->ext_event ($type, %msg)	1862	=item $player->ext_msg ($type, @msg)
1233		1863
1234	Sends an ext event to the client.	1864	Sends an ext event to the client.
1235		1865
1236	=cut	1866	=cut
1237		1867
1238	sub ext_event($$%) {	1868	sub ext_msg($$@) {
1239	my ($self, $type, %msg) = @_;	1869	my ($self, $type, @msg) = @_;
1240		1870
1241	$self->ns->ext_event ($type, %msg);	1871	$self->ns->ext_msg ($type, @msg);
1242	}	1872	}
1243		1873
1244	=head3 cf::region	1874	=head3 cf::region
1245		1875
1246	=over 4	1876	=over 4
…		…
1249		1879
1250	package cf::region;	1880	package cf::region;
1251		1881
1252	=item cf::region::find_by_path $path	1882	=item cf::region::find_by_path $path
1253		1883
1254	Tries to decuce the probable region for a map knowing only its path.	1884	Tries to decuce the likely region for a map knowing only its path.
1255		1885
1256	=cut	1886	=cut
1257		1887
1258	sub find_by_path($) {	1888	sub find_by_path($) {
1259	my ($path) = @_;	1889	my ($path) = @_;
1260		1890
		1891	$path =~ s/^~[^\/]*//; # skip ~login
		1892
1261	my ($match, $specificity);	1893	my ($match, $specificity);
1262		1894
1263	for my $region (list) {	1895	for my $region (list) {
1264	if ($region->match && $path =~ $region->match) {	1896	if ($region->{match} && $path =~ $region->{match}) {
1265	($match, $specificity) = ($region, $region->specificity)	1897	($match, $specificity) = ($region, $region->specificity)
1266	if $region->specificity > $specificity;	1898	if $region->specificity > $specificity;
1267	}	1899	}
1268	}	1900	}
1269		1901
…		…
1290	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1291	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1292		1924
1293	sub generate_random_map {	1925	sub generate_random_map {
1294	my ($self, $rmp) = @_;	1926	my ($self, $rmp) = @_;
1295	# mit "rum" bekleckern, nicht	1927
		1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
1296	$self->_create_random_map (	1930	$self->_create_random_map ($rmp);
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region}), $rmp->{custom}
1308	)
1309	}	1931	}
1310		1932
1311	=item cf::map->register ($regex, $prio)	1933	=item cf::map->register ($regex, $prio)
1312		1934
1313	Register a handler for the map path matching the given regex at the	1935	Register a handler for the map path matching the given regex at the
…		…
1318		1940
1319	sub register {	1941	sub register {
1320	my (undef, $regex, $prio) = @_;	1942	my (undef, $regex, $prio) = @_;
1321	my $pkg = caller;	1943	my $pkg = caller;
1322		1944
1323	no strict;
1324	push @{"$pkg\::ISA"}, __PACKAGE__;	1945	push @{"$pkg\::ISA"}, __PACKAGE__;
1325		1946
1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1327	}	1948	}
1328		1949
1329	# also paths starting with '/'	1950	# also paths starting with '/'
1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1331		1952
1332	sub thawer_merge {	1953	sub thawer_merge {
1333	my ($self, $merge) = @_;	1954	my ($self, $merge) = @_;
1334		1955
1335	# we have to keep some variables in memory intact	1956	# we have to keep some variables in memory intact
…		…
1340	}	1961	}
1341		1962
1342	sub normalise {	1963	sub normalise {
1343	my ($path, $base) = @_;	1964	my ($path, $base) = @_;
1344		1965
1345	$path = "$path"; # make sure its a string	1966	$path = "$path"; # make sure it's a string
1346		1967
1347	$path =~ s/\.map$//;	1968	$path =~ s/\.map$//;
1348		1969
1349	# map plan:	1970	# map plan:
1350	#	1971	#
…		…
1365	$base =~ s{[^/]+/?$}{};	1986	$base =~ s{[^/]+/?$}{};
1366	$path = "$base/$path";	1987	$path = "$base/$path";
1367	}	1988	}
1368		1989
1369	for ($path) {	1990	for ($path) {
1370	redo if s{//}{/};
1371	redo if s{/\.?/}{/};	1991	redo if s{/\.?/}{/};
1372	redo if s{/[^/]+/\.\./}{/};	1992	redo if s{/[^/]+/\.\./}{/};
1373	}	1993	}
1374		1994
1375	$path	1995	$path
…		…
1389	$self->init; # pass $1 etc.	2009	$self->init; # pass $1 etc.
1390	return $self;	2010	return $self;
1391	}	2011	}
1392	}	2012	}
1393		2013
1394	Carp::carp "unable to resolve path '$path' (base '$base').";	2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
1395	()	2015	()
1396	}	2016	}
1397		2017
		2018	# may re-bless or do other evil things
1398	sub init {	2019	sub init {
1399	my ($self) = @_;	2020	my ($self) = @_;
1400		2021
1401	$self	2022	$self
1402	}	2023	}
…		…
1421		2042
1422	# the temporary/swap location	2043	# the temporary/swap location
1423	sub save_path {	2044	sub save_path {
1424	my ($self) = @_;	2045	my ($self) = @_;
1425		2046
1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1427	"$TMPDIR/$path.map"	2048	"$TMPDIR/$path.map"
1428	}	2049	}
1429		2050
1430	# the unique path, undef == no special unique path	2051	# the unique path, undef == no special unique path
1431	sub uniq_path {	2052	sub uniq_path {
1432	my ($self) = @_;	2053	my ($self) = @_;
1433		2054
1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1435	"$UNIQUEDIR/$path"	2056	"$UNIQUEDIR/$path"
1436	}
1437
1438	# and all this just because we cannot iterate over
1439	# all maps in C++...
1440	sub change_all_map_light {
1441	my ($change) = @_;
1442
1443	$_->change_map_light ($change)
1444	for grep $_->outdoor, values %cf::MAP;
1445	}	2057	}
1446		2058
1447	sub decay_objects {	2059	sub decay_objects {
1448	my ($self) = @_;	2060	my ($self) = @_;
1449		2061
…		…
1462		2074
1463	sub load_header_from($) {	2075	sub load_header_from($) {
1464	my ($self, $path) = @_;	2076	my ($self, $path) = @_;
1465		2077
1466	utf8::encode $path;	2078	utf8::encode $path;
1467	#aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1468	# or return;
1469
1470	$self->_load_header ($path)
1471	or return;	2080	or return;
1472		2081
		2082	$self->_load_header ($f)
		2083	or return;
		2084
		2085	local $MAP_LOADING{$self->{path}} = $self;
		2086	$f->resolve_delayed_derefs;
		2087
1473	$self->{load_path} = $path;	2088	$self->{load_path} = $path;
1474		2089
1475	1	2090	1
1476	}	2091	}
1477		2092
		2093	# used to laod the header of an original map
1478	sub load_header_orig {	2094	sub load_header_orig {
1479	my ($self) = @_;	2095	my ($self) = @_;
1480		2096
1481	$self->load_header_from ($self->load_path)	2097	$self->load_header_from ($self->load_path)
1482	}	2098	}
1483		2099
		2100	# used to laod the header of an instantiated map
1484	sub load_header_temp {	2101	sub load_header_temp {
1485	my ($self) = @_;	2102	my ($self) = @_;
1486		2103
1487	$self->load_header_from ($self->save_path)	2104	$self->load_header_from ($self->save_path)
1488	}	2105	}
1489		2106
		2107	# called after loading the header from an instantiated map
1490	sub prepare_temp {	2108	sub prepare_temp {
1491	my ($self) = @_;	2109	my ($self) = @_;
1492		2110
1493	$self->last_access ((delete $self->{last_access})	2111	$self->last_access ((delete $self->{last_access})
1494	|| $cf::RUNTIME); #d#	2112	|| $cf::RUNTIME); #d#
1495	# safety	2113	# safety
1496	$self->{instantiate_time} = $cf::RUNTIME	2114	$self->{instantiate_time} = $cf::RUNTIME
1497	if $self->{instantiate_time} > $cf::RUNTIME;	2115	if $self->{instantiate_time} > $cf::RUNTIME;
1498	}	2116	}
1499		2117
		2118	# called after loading the header from an original map
1500	sub prepare_orig {	2119	sub prepare_orig {
1501	my ($self) = @_;	2120	my ($self) = @_;
1502		2121
1503	$self->{load_original} = 1;	2122	$self->{load_original} = 1;
1504	$self->{instantiate_time} = $cf::RUNTIME;	2123	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1528		2147
1529	sub find;	2148	sub find;
1530	sub find {	2149	sub find {
1531	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1532		2151
		2152	cf::cede_to_tick;
		2153
1533	$path = normalise $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1534		2155
		2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1535	cf::lock_wait "map_find:$path";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1536		2158
1537	$cf::MAP{$path} || do {	2159	$cf::MAP{$path} || do {
1538	my $guard = cf::lock_acquire "map_find:$path";
1539	my $map = new_from_path cf::map $path	2160	my $map = new_from_path cf::map $path
1540	or return;	2161	or return;
1541		2162
1542	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1543		2164
…		…
1545	or return;	2166	or return;
1546		2167
1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1548	# doing this can freeze the server in a sync job, obviously	2169	# doing this can freeze the server in a sync job, obviously
1549	#$cf::WAIT_FOR_TICK->wait;	2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1550	$map->reset;	2173	$map->reset;
1551	undef $guard;
1552	return find $path;	2174	return find $path;
1553	}	2175	}
1554		2176
1555	$cf::MAP{$path} = $map	2177	$cf::MAP{$path} = $map
1556	}	2178	}
1557	}	2179	}
1558		2180
1559	sub pre_load { }	2181	sub pre_load { }
1560	sub post_load { }	2182	#sub post_load { } # XS
1561		2183
1562	sub load {	2184	sub load {
1563	my ($self) = @_;	2185	my ($self) = @_;
1564		2186
1565	local $self->{deny_reset} = 1; # loading can take a long time	2187	local $self->{deny_reset} = 1; # loading can take a long time
1566		2188
1567	my $path = $self->{path};	2189	my $path = $self->{path};
1568		2190
1569	{	2191	{
1570	my $guard = cf::lock_acquire "map_load:$path";	2192	my $guard = cf::lock_acquire "map_data:$path";
1571		2193
		2194	return unless $self->valid;
1572	return if $self->in_memory != cf::MAP_SWAPPED;	2195	return unless $self->state == cf::MAP_SWAPPED;
1573
1574	$self->in_memory (cf::MAP_LOADING);
1575		2196
1576	$self->alloc;	2197	$self->alloc;
1577		2198
1578	$self->pre_load;	2199	$self->pre_load;
1579	Coro::cede;	2200	cf::cede_to_tick;
1580		2201
1581	$self->_load_objects ($self->{load_path}, 1)	2202	if (exists $self->{load_path}) {
		2203	my $f = new_from_file cf::object::thawer $self->{load_path};
		2204	$f->skip_block;
		2205	$self->_load_objects ($f)
1582	or return;	2206	or return;
1583		2207
1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1585	if delete $self->{load_original};	2209	if delete $self->{load_original};
1586		2210
1587	if (my $uniq = $self->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1588	utf8::encode $uniq;	2212	utf8::encode $uniq;
1589	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1590	$self->clear_unique_items;	2215	$self->clear_unique_items;
1591	$self->_load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1592	}	2220	}
1593	}
1594		2221
1595	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1596	# now do the right thing for maps	2231	# now do the right thing for maps
1597	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1598	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1599	unless $self->difficulty;	2234	unless $self->difficulty;
1600	Coro::cede;	2235	cf::cede_to_tick;
1601		2236
1602	unless ($self->{deny_activate}) {	2237	unless ($self->{deny_activate}) {
1603	$self->decay_objects;	2238	$self->decay_objects;
1604	$self->fix_auto_apply;	2239	$self->fix_auto_apply;
1605	$self->update_buttons;	2240	$self->update_buttons;
1606	Coro::cede;	2241	cf::cede_to_tick;
1607	$self->set_darkness_map;	2242	#$self->activate; # no longer activate maps automatically
1608	Coro::cede;
1609	$self->activate;
1610	}	2243	}
1611		2244
1612	$self->in_memory (cf::MAP_IN_MEMORY);	2245	$self->{last_save} = $cf::RUNTIME;
		2246	$self->last_access ($cf::RUNTIME);
1613	}	2247	}
1614		2248
1615	$self->post_load;	2249	$self->post_load;
1616	}
1617		2250
		2251	1
		2252	}
		2253
		2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
1618	sub customise_for {	2257	sub customise_for {
1619	my ($self, $ob) = @_;	2258	my ($self, $ob) = @_;
1620		2259
1621	return find "~" . $ob->name . "/" . $self->{path}	2260	return find "~" . $ob->name . "/" . $self->{path}
1622	if $self->per_player;	2261	if $self->per_player;
…		…
1625	# if $self->per_party;	2264	# if $self->per_party;
1626		2265
1627	$self	2266	$self
1628	}	2267	}
1629		2268
1630	# find and load all maps in the 3x3 area around a map
1631	sub load_diag {
1632	my ($map) = @_;
1633
1634	my @diag; # diagonal neighbours
1635
1636	for (0 .. 3) {
1637	my $neigh = $map->tile_path ($_)
1638	or next;
1639	$neigh = find $neigh, $map
1640	or next;
1641	$neigh->load;
1642
1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1645	}
1646
1647	for (@diag) {
1648	my $neigh = find @$_
1649	or next;
1650	$neigh->load;
1651	}
1652	}
1653
1654	sub find_sync {	2269	sub find_sync {
1655	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1656		2271
1657	cf::sync_job { find $path, $origin }	2272	# it's a bug to call this from the main context
		2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1658	}	2277	}
1659		2278
1660	sub do_load_sync {	2279	sub do_load_sync {
1661	my ($map) = @_;	2280	my ($map) = @_;
1662		2281
1663	cf::sync_job { $map->load };	2282	# it's a bug to call this from the main context
		2283	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2284	if $Coro::current == $Coro::main;
		2285
		2286	$map->load;
1664	}	2287	}
1665		2288
1666	our %MAP_PREFETCH;	2289	our %MAP_PREFETCH;
1667	our $MAP_PREFETCHER = undef;	2290	our $MAP_PREFETCHER = undef;
1668		2291
1669	sub find_async {	2292	sub find_async {
1670	my ($path, $origin) = @_;	2293	my ($path, $origin, $load) = @_;
1671		2294
1672	$path = normalise $path, $origin && $origin->{path};	2295	$path = normalise $path, $origin;
1673		2296
1674	if (my $map = $cf::MAP{$path}) {	2297	if (my $map = $cf::MAP{$path}) {
1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2298	return $map if !$load || $map->linkable;
1676	}	2299	}
1677		2300
1678	undef $MAP_PREFETCH{$path};	2301	$MAP_PREFETCH{$path} |= $load;
		2302
1679	$MAP_PREFETCHER ||= cf::async {	2303	$MAP_PREFETCHER ||= cf::async {
		2304	$Coro::current->{desc} = "map prefetcher";
		2305
1680	while (%MAP_PREFETCH) {	2306	while (%MAP_PREFETCH) {
1681	for my $path (keys %MAP_PREFETCH) {	2307	while (my ($k, $v) = each %MAP_PREFETCH) {
1682	my $map = find $path	2308	if (my $map = find $k) {
1683	or next;
1684	$map->load;	2309	$map->load if $v;
		2310	}
1685		2311
1686	delete $MAP_PREFETCH{$path};	2312	delete $MAP_PREFETCH{$k};
1687	}	2313	}
1688	}	2314	}
1689	undef $MAP_PREFETCHER;	2315	undef $MAP_PREFETCHER;
1690	};	2316	};
1691	$MAP_PREFETCHER->prio (6);	2317	$MAP_PREFETCHER->prio (6);
1692		2318
1693	()	2319	()
1694	}	2320	}
1695		2321
		2322	# common code, used by both ->save and ->swapout
1696	sub save {	2323	sub _save {
1697	my ($self) = @_;	2324	my ($self) = @_;
1698
1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1700		2325
1701	$self->{last_save} = $cf::RUNTIME;	2326	$self->{last_save} = $cf::RUNTIME;
1702		2327
1703	return unless $self->dirty;	2328	return unless $self->dirty;
1704		2329
…		…
1710	return if $self->{deny_save};	2335	return if $self->{deny_save};
1711		2336
1712	local $self->{last_access} = $self->last_access;#d#	2337	local $self->{last_access} = $self->last_access;#d#
1713		2338
1714	cf::async {	2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
1715	$_->contr->save for $self->players;	2341	$_->contr->save for $self->players;
1716	};	2342	};
		2343
		2344	cf::get_slot 0.02;
1717		2345
1718	if ($uniq) {	2346	if ($uniq) {
1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1721	} else {	2349	} else {
1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1723	}	2351	}
1724	}	2352	}
1725		2353
		2354	sub save {
		2355	my ($self) = @_;
		2356
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
		2359	$self->_save;
		2360	}
		2361
1726	sub swap_out {	2362	sub swap_out {
1727	my ($self) = @_;	2363	my ($self) = @_;
1728		2364
1729	# save first because save cedes
1730	$self->save;
1731
1732	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1733		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1734	return if $self->players;	2369	return if $self->players;
1735	return if $self->in_memory != cf::MAP_IN_MEMORY;
1736	return if $self->{deny_save};
1737		2370
		2371	# first deactivate the map and "unlink" it from the core
		2372	$self->deactivate;
		2373	$_->clear_links_to ($self) for values %cf::MAP;
		2374	$self->state (cf::MAP_SWAPPED);
		2375
		2376	# then atomically save
		2377	$self->_save;
		2378
		2379	# then free the map
1738	$self->clear;	2380	$self->clear;
1739	$self->in_memory (cf::MAP_SWAPPED);
1740	}	2381	}
1741		2382
1742	sub reset_at {	2383	sub reset_at {
1743	my ($self) = @_;	2384	my ($self) = @_;
1744		2385
…		…
1762		2403
1763	my $lock = cf::lock_acquire "map_data:$self->{path}";	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1764		2405
1765	return if $self->players;	2406	return if $self->players;
1766		2407
1767	warn "resetting map ", $self->path;	2408	cf::trace "resetting map ", $self->path, "\n";
1768		2409
1769	$self->in_memory (cf::MAP_SWAPPED);	2410	$self->state (cf::MAP_SWAPPED);
1770		2411
1771	# need to save uniques path	2412	# need to save uniques path
1772	unless ($self->{deny_save}) {	2413	unless ($self->{deny_save}) {
1773	my $uniq = $self->uniq_path; utf8::encode $uniq;	2414	my $uniq = $self->uniq_path; utf8::encode $uniq;
1774		2415
…		…
1776	if $uniq;	2417	if $uniq;
1777	}	2418	}
1778		2419
1779	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1780		2421
		2422	$self->deactivate;
		2423	$_->clear_links_to ($self) for values %cf::MAP;
1781	$self->clear;	2424	$self->clear;
1782
1783	$_->clear_links_to ($self) for values %cf::MAP;
1784		2425
1785	$self->unlink_save;	2426	$self->unlink_save;
1786	$self->destroy;	2427	$self->destroy;
1787	}	2428	}
1788		2429
1789	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1790		2431
1791	sub nuke {	2432	sub nuke {
1792	my ($self) = @_;	2433	my ($self) = @_;
1793		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
1794	delete $cf::MAP{$self->path};	2438	delete $cf::MAP{$self->path};
1795		2439
1796	$self->unlink_save;	2440	$self->unlink_save;
1797		2441
1798	bless $self, "cf::map";	2442	bless $self, "cf::map::wrap";
1799	delete $self->{deny_reset};	2443	delete $self->{deny_reset};
1800	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1801	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1803		2447
1804	$cf::MAP{$self->path} = $self;	2448	$cf::MAP{$self->path} = $self;
		2449	}
1805		2450
1806	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
1807	}	2452	}
1808		2453
1809	=item $maps = cf::map::tmp_maps	2454	=item $maps = cf::map::tmp_maps
…		…
1851		2496
1852	sub unique_maps() {	2497	sub unique_maps() {
1853	[	2498	[
1854	map {	2499	map {
1855	utf8::decode $_;	2500	utf8::decode $_;
1856	/\.map$/	2501	s/\.map$//; # TODO future compatibility hack
		2502	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2503	? ()
1857	? normalise $_	2504	: normalise $_
1858	: ()
1859	} @{ aio_readdir $UNIQUEDIR or [] }	2505	} @{ aio_readdir $UNIQUEDIR or [] }
1860	]	2506	]
1861	}	2507	}
1862		2508
1863	package cf;	2509	=item cf::map::static_maps
		2510
		2511	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2512	file in the shared directory excluding F</styles> and F</editor>). May
		2513	block.
		2514
		2515	=cut
		2516
		2517	sub static_maps() {
		2518	my @dirs = "";
		2519	my @maps;
		2520
		2521	while (@dirs) {
		2522	my $dir = shift @dirs;
		2523
		2524	next if $dir eq "/styles" || $dir eq "/editor";
		2525
		2526	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2527	or return;
		2528
		2529	for (@$files) {
		2530	s/\.map$// or next;
		2531	utf8::decode $_;
		2532	push @maps, "$dir/$_";
		2533	}
		2534
		2535	push @dirs, map "$dir/$_", @$dirs;
		2536	}
		2537
		2538	\@maps
		2539	}
1864		2540
1865	=back	2541	=back
1866		2542
1867	=head3 cf::object	2543	=head3 cf::object
1868		2544
…		…
1872		2548
1873	=over 4	2549	=over 4
1874		2550
1875	=item $ob->inv_recursive	2551	=item $ob->inv_recursive
1876		2552
1877	Returns the inventory of the object _and_ their inventories, recursively.	2553	Returns the inventory of the object I<and> their inventories, recursively,
		2554	but I<not> the object itself.
1878		2555
1879	=cut	2556	=cut
1880		2557
1881	sub inv_recursive_;	2558	sub inv_recursive_;
1882	sub inv_recursive_ {	2559	sub inv_recursive_ {
…		…
1885		2562
1886	sub inv_recursive {	2563	sub inv_recursive {
1887	inv_recursive_ inv $_[0]	2564	inv_recursive_ inv $_[0]
1888	}	2565	}
1889		2566
		2567	=item $ref = $ob->ref
		2568
		2569	Creates and returns a persistent reference to an object that can be stored as a string.
		2570
		2571	=item $ob = cf::object::deref ($refstring)
		2572
		2573	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2574	even if the object actually exists. May block.
		2575
		2576	=cut
		2577
		2578	sub deref {
		2579	my ($ref) = @_;
		2580
		2581	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2582	my ($uuid, $name) = ($1, $2);
		2583	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2584	or return;
		2585	$pl->ob->uuid eq $uuid
		2586	or return;
		2587
		2588	$pl->ob
		2589	} else {
		2590	warn "$ref: cannot resolve object reference\n";
		2591	undef
		2592	}
		2593	}
		2594
1890	package cf;	2595	package cf;
1891		2596
1892	=back	2597	=back
1893		2598
1894	=head3 cf::object::player	2599	=head3 cf::object::player
…		…
1900	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2605	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1901	can be C<undef>. Does the right thing when the player is currently in a	2606	can be C<undef>. Does the right thing when the player is currently in a
1902	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1903		2608
1904	=cut	2609	=cut
		2610
		2611	our $SAY_CHANNEL = {
		2612	id => "say",
		2613	title => "Map",
		2614	reply => "say ",
		2615	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2616	};
		2617
		2618	our $CHAT_CHANNEL = {
		2619	id => "chat",
		2620	title => "Chat",
		2621	reply => "chat ",
		2622	tooltip => "Player chat and shouts, global to the server.",
		2623	};
1905		2624
1906	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1907	# with dialog boxes.	2626	# with dialog boxes.
1908	#TODO: the first argument must go, split into a $npc->reply_to ( method	2627	#TODO: the first argument must go, split into a $npc->reply_to ( method
1909	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1911		2630
1912	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1913		2632
1914	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1915	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1916	} else {	2636	} else {
		2637	my $pl = $self->contr;
		2638
		2639	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2640	my $dialog = $pl->{npc_dialog};
		2641	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2642
		2643	} else {
1917	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1918	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1919	}	2647	}
		2648	}
		2649
		2650	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2651
		2652	=cut
		2653
		2654	sub cf::object::send_msg {
		2655	my $pl = shift->contr
		2656	or return;
		2657	$pl->send_msg (@_);
1920	}	2658	}
1921		2659
1922	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1923		2661
1924	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1937		2675
1938	=item $player_object->enter_link	2676	=item $player_object->enter_link
1939		2677
1940	Freezes the player and moves him/her to a special map (C<{link}>).	2678	Freezes the player and moves him/her to a special map (C<{link}>).
1941		2679
1942	The player should be reasonably safe there for short amounts of time. You	2680	The player should be reasonably safe there for short amounts of time (e.g.
1943	I<MUST> call C<leave_link> as soon as possible, though.	2681	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2682	though, as the player cannot control the character while it is on the link
		2683	map.
1944		2684
1945	Will never block.	2685	Will never block.
1946		2686
1947	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1948		2688
…		…
1968	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1969	my ($self) = @_;	2709	my ($self) = @_;
1970		2710
1971	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1972		2712
		2713	++$self->{_link_recursion};
		2714
1973	return if UNIVERSAL::isa $self->map, "ext::map_link";	2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1974		2716
1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1976	if $self->map && $self->map->{path} ne "{link}";	2718	if $self->map && $self->map->{path} ne "{link}";
1977		2719
1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1979	}	2721	}
1980		2722
1981	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1982	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
1983		2725
…		…
2000	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
2001	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
2002		2744
2003	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
2004	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
2005	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
2006		2748
2007	$map->load;	2749	$map->load;
2008	$map->load_diag;
2009		2750
2010	return unless $self->contr->active;	2751	return unless $self->contr->active;
2011	$self->activate_recursive;
2012		2752
2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2014	$self->enter_map ($map, $x, $y);	2754	if ($self->enter_map ($map, $x, $y)) {
2015	}	2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
		2758	$self->activate_recursive;
		2759	}
2016		2760
		2761	}
		2762
2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2018		2764
2019	Moves the player to the given map-path and coordinates by first freezing	2765	Moves the player to the given map-path and coordinates by first freezing
2020	her, loading and preparing them map, calling the provided $check callback	2766	her, loading and preparing them map, calling the provided $check callback
2021	that has to return the map if sucecssful, and then unfreezes the player on	2767	that has to return the map if sucecssful, and then unfreezes the player on
2022	the new (success) or old (failed) map position.	2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
2023		2773
2024	=cut	2774	=cut
2025		2775
2026	our $GOTOGEN;	2776	our $GOTOGEN;
2027		2777
2028	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
2029	my ($self, $path, $x, $y, $check) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
		2780
		2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
2030		2786
2031	# do generation counting so two concurrent goto's will be executed in-order	2787	# do generation counting so two concurrent goto's will be executed in-order
2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2033		2789
2034	$self->enter_link;	2790	$self->enter_link;
2035		2791
2036	(async {	2792	(async {
		2793	$Coro::current->{desc} = "player::goto $path $x $y";
		2794
		2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
2037	my $map = eval {	2814	my $map = eval {
2038	my $map = cf::map::find $path;	2815	my $map = defined $path ? cf::map::find $path, $self->map : undef;
2039		2816
2040	if ($map) {	2817	if ($map) {
2041	$map = $map->customise_for ($self);	2818	$map = $map->customise_for ($self);
2042	$map = $check->($map) if $check && $map;	2819	$map = $check->($map, $x, $y, $self) if $check && $map;
2043	} else {	2820	} else {
2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2045	}	2822	}
2046		2823
2047	$map	2824	$map
2048	};	2825	};
2049		2826
…		…
2054		2831
2055	if ($gen == $self->{_goto_generation}) {	2832	if ($gen == $self->{_goto_generation}) {
2056	delete $self->{_goto_generation};	2833	delete $self->{_goto_generation};
2057	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
2058	}	2835	}
		2836
		2837	$done->($self) if $done;
2059	})->prio (1);	2838	})->prio (1);
2060	}	2839	}
2061		2840
2062	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
2063		2842
…		…
2083	}	2862	}
2084		2863
2085	sub prepare_random_map {	2864	sub prepare_random_map {
2086	my ($exit) = @_;	2865	my ($exit) = @_;
2087		2866
2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
2089
2090	# all this does is basically replace the /! path by	2867	# all this does is basically replace the /! path by
2091	# a new random map path (?random/...) with a seed	2868	# a new random map path (?random/...) with a seed
2092	# that depends on the exit object	2869	# that depends on the exit object
2093		2870
2094	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
…		…
2096	if ($exit->map) {	2873	if ($exit->map) {
2097	$rmp->{region} = $exit->region->name;	2874	$rmp->{region} = $exit->region->name;
2098	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
2099	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
2100	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
2101	}	2880	}
2102		2881
2103	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
2104		2883
2105	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2106	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
2107	my $meta = "$RANDOMDIR/$md5.meta";	2886	my $meta = "$RANDOMDIR/$md5.meta";
2108		2887
2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2110	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
2111	undef $fh;	2890	undef $fh;
2112	aio_rename "$meta~", $meta;	2891	aio_rename "$meta~", $meta;
2113		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
2114	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
2115	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
2116	}	2899	}
2117	}	2900	}
2118		2901
2119	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
2120	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
2121		2904
2122	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
2123		2906
2124	if ($exit->slaying eq "/!") {
2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
2126	# the problem is that $exit might not survive long enough
2127	# so it needs to be done right now, right here
2128	cf::sync_job { prepare_random_map $exit };
2129	}
2130
2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2132	my $hp = $exit->stats->hp;
2133	my $sp = $exit->stats->sp;
2134
2135	$self->enter_link;	2907	$self->enter_link;
2136		2908
2137	(async {	2909	(async {
2138	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
2139	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2916	my $x = $exit->stats->hp;
		2917	my $y = $exit->stats->sp;
		2918
		2919	# special map handling
		2920	my $slaying = $exit->slaying;
		2921
		2922	# special map handling
		2923	if ($slaying eq "/!") {
		2924	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2925
		2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
		2929	$map = $exit->slaying;
		2930
		2931	} elsif ($slaying eq '!up') {
		2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
		2935
		2936	} elsif ($slaying eq '!down') {
		2937	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2938	$x = $exit->x;
		2939	$y = $exit->y;
		2940	}
		2941
2140	$self->goto ($slaying, $hp, $sp);	2942	$self->goto ($map, $x, $y);
2141		2943
		2944	# if exit is damned, update players death & WoR home-position
		2945	$self->contr->savebed ($map, $x, $y)
		2946	if $exit->flag (cf::FLAG_DAMNED);
		2947
2142	1;	2948	1
2143	}) {	2949	}) {
2144	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
2145	. "I'll try to bring you back to the map you were before. "	2951	. "I'll try to bring you back to the map you were before. "
2146	. "Please report this to the dungeon master!",	2952	. "Please report this to the dungeon master!",
2147	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
2148		2954
2149	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
2150	$self->leave_link;	2956	$self->leave_link;
2151	}	2957	}
2152	})->prio (1);	2958	})->prio (1);
2153	}	2959	}
2154		2960
…		…
2168		2974
2169	utf8::encode $text;	2975	utf8::encode $text;
2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2171	}	2977	}
2172		2978
		2979	=item $client->send_big_packet ($pkt)
		2980
		2981	Like C<send_packet>, but tries to compress large packets, and fragments
		2982	them as required.
		2983
		2984	=cut
		2985
		2986	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2987
		2988	sub cf::client::send_big_packet {
		2989	my ($self, $pkt) = @_;
		2990
		2991	# try lzf for large packets
		2992	$pkt = "lzf " . Compress::LZF::compress $pkt
		2993	if 1024 <= length $pkt and $self->{can_lzf};
		2994
		2995	# split very large packets
		2996	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2997	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2998	$pkt = "frag";
		2999	}
		3000
		3001	$self->send_packet ($pkt);
		3002	}
		3003
		3004	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3005
		3006	Send a drawinfo or msg packet to the client, formatting the msg for the
		3007	client if neccessary. C<$type> should be a string identifying the type of
		3008	the message, with C<log> being the default. If C<$color> is negative, suppress
		3009	the message unless the client supports the msg packet.
		3010
		3011	=cut
		3012
		3013	# non-persistent channels (usually the info channel)
		3014	our %CHANNEL = (
		3015	"c/motd" => {
		3016	id => "infobox",
		3017	title => "MOTD",
		3018	reply => undef,
		3019	tooltip => "The message of the day",
		3020	},
		3021	"c/identify" => {
		3022	id => "infobox",
		3023	title => "Identify",
		3024	reply => undef,
		3025	tooltip => "Items recently identified",
		3026	},
		3027	"c/examine" => {
		3028	id => "infobox",
		3029	title => "Examine",
		3030	reply => undef,
		3031	tooltip => "Signs and other items you examined",
		3032	},
		3033	"c/shopinfo" => {
		3034	id => "infobox",
		3035	title => "Shop Info",
		3036	reply => undef,
		3037	tooltip => "What your bargaining skill tells you about the shop",
		3038	},
		3039	"c/book" => {
		3040	id => "infobox",
		3041	title => "Book",
		3042	reply => undef,
		3043	tooltip => "The contents of a note or book",
		3044	},
		3045	"c/lookat" => {
		3046	id => "infobox",
		3047	title => "Look",
		3048	reply => undef,
		3049	tooltip => "What you saw there",
		3050	},
		3051	"c/who" => {
		3052	id => "infobox",
		3053	title => "Players",
		3054	reply => undef,
		3055	tooltip => "Shows players who are currently online",
		3056	},
		3057	"c/body" => {
		3058	id => "infobox",
		3059	title => "Body Parts",
		3060	reply => undef,
		3061	tooltip => "Shows which body parts you posess and are available",
		3062	},
		3063	"c/statistics" => {
		3064	id => "infobox",
		3065	title => "Statistics",
		3066	reply => undef,
		3067	tooltip => "Shows your primary statistics",
		3068	},
		3069	"c/skills" => {
		3070	id => "infobox",
		3071	title => "Skills",
		3072	reply => undef,
		3073	tooltip => "Shows your experience per skill and item power",
		3074	},
		3075	"c/shopitems" => {
		3076	id => "infobox",
		3077	title => "Shop Items",
		3078	reply => undef,
		3079	tooltip => "Shows the items currently for sale in this shop",
		3080	},
		3081	"c/resistances" => {
		3082	id => "infobox",
		3083	title => "Resistances",
		3084	reply => undef,
		3085	tooltip => "Shows your resistances",
		3086	},
		3087	"c/pets" => {
		3088	id => "infobox",
		3089	title => "Pets",
		3090	reply => undef,
		3091	tooltip => "Shows information abotu your pets/a specific pet",
		3092	},
		3093	"c/perceiveself" => {
		3094	id => "infobox",
		3095	title => "Perceive Self",
		3096	reply => undef,
		3097	tooltip => "You gained detailed knowledge about yourself",
		3098	},
		3099	"c/uptime" => {
		3100	id => "infobox",
		3101	title => "Uptime",
		3102	reply => undef,
		3103	tooltip => "How long the server has been running since last restart",
		3104	},
		3105	"c/mapinfo" => {
		3106	id => "infobox",
		3107	title => "Map Info",
		3108	reply => undef,
		3109	tooltip => "Information related to the maps",
		3110	},
		3111	"c/party" => {
		3112	id => "party",
		3113	title => "Party",
		3114	reply => "gsay ",
		3115	tooltip => "Messages and chat related to your party",
		3116	},
		3117	"c/death" => {
		3118	id => "death",
		3119	title => "Death",
		3120	reply => undef,
		3121	tooltip => "Reason for and more info about your most recent death",
		3122	},
		3123	"c/say" => $SAY_CHANNEL,
		3124	"c/chat" => $CHAT_CHANNEL,
		3125	);
		3126
		3127	sub cf::client::send_msg {
		3128	my ($self, $channel, $msg, $color, @extra) = @_;
		3129
		3130	$msg = $self->pl->expand_cfpod ($msg)
		3131	unless $color & cf::NDI_VERBATIM;
		3132
		3133	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3134
		3135	# check predefined channels, for the benefit of C
		3136	if ($CHANNEL{$channel}) {
		3137	$channel = $CHANNEL{$channel};
		3138
		3139	$self->ext_msg (channel_info => $channel);
		3140	$channel = $channel->{id};
		3141
		3142	} elsif (ref $channel) {
		3143	# send meta info to client, if not yet sent
		3144	unless (exists $self->{channel}{$channel->{id}}) {
		3145	$self->{channel}{$channel->{id}} = $channel;
		3146	$self->ext_msg (channel_info => $channel);
		3147	}
		3148
		3149	$channel = $channel->{id};
		3150	}
		3151
		3152	return unless @extra || length $msg;
		3153
		3154	# default colour, mask it out
		3155	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3156	if $color & cf::NDI_DEF;
		3157
		3158	my $pkt = "msg "
		3159	. $self->{json_coder}->encode (
		3160	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3161	);
		3162
		3163	$self->send_big_packet ($pkt);
		3164	}
		3165
2173	=item $client->ext_event ($type, %msg)	3166	=item $client->ext_msg ($type, @msg)
2174		3167
2175	Sends an exti event to the client.	3168	Sends an ext event to the client.
2176		3169
2177	=cut	3170	=cut
2178		3171
2179	sub cf::client::ext_event($$%) {	3172	sub cf::client::ext_msg($$@) {
2180	my ($self, $type, %msg) = @_;	3173	my ($self, $type, @msg) = @_;
2181		3174
		3175	if ($self->extcmd == 2) {
		3176	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3177	} elsif ($self->extcmd == 1) { # TODO: remove
2182	$msg{msgtype} = "event_$type";	3178	push @msg, msgtype => "event_$type";
2183	$self->send_packet ("ext " . cf::to_json \%msg);	3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
		3182
		3183	=item $client->ext_reply ($msgid, @msg)
		3184
		3185	Sends an ext reply to the client.
		3186
		3187	=cut
		3188
		3189	sub cf::client::ext_reply($$@) {
		3190	my ($self, $id, @msg) = @_;
		3191
		3192	return unless $self->extcmd == 2;
		3193
		3194	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2184	}	3195	}
2185		3196
2186	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
2187		3198
2188	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3200	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2190	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3201	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2191		3202
2192	Queries can fail, so check the return code. Or don't, as queries will become	3203	Queries can fail, so check the return code. Or don't, as queries will
2193	reliable at some point in the future.	3204	become reliable at some point in the future.
2194		3205
2195	=cut	3206	=cut
2196		3207
2197	sub cf::client::query {	3208	sub cf::client::query {
2198	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
2206	utf8::encode $text;	3217	utf8::encode $text;
2207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208		3219
2209	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
2210	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
2211	}	3224	}
2212		3225
2213	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
2214	on_reply => sub {	3232	on_reply => sub {
2215	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
2216		3234
2217	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
2218	# get handled first	3236	# get handled first
…		…
2230	} else {	3248	} else {
2231	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232	}	3250	}
2233	}	3251	}
2234	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($ns, $buf) = @_;
		3255
		3256	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3257
		3258	if (ref $msg) {
		3259	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3260
		3261	my @reply;
		3262
		3263	if (my $cb = $EXTICMD{$type}) {
		3264	@reply = $cb->($ns, @payload);
		3265	}
		3266
		3267	$ns->ext_reply ($reply, @reply)
		3268	if $reply;
		3269
		3270	} else {
		3271	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3272	}
		3273
		3274	cf::override;
		3275	},
2235	);	3276	);
2236		3277
2237	=item $client->async (\&cb)	3278	=item $client->async (\&cb)
2238		3279
2239	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
…		…
2255		3296
2256	$coro	3297	$coro
2257	}	3298	}
2258		3299
2259	cf::client->attach (	3300	cf::client->attach (
2260	on_destroy => sub {	3301	on_client_destroy => sub {
2261	my ($ns) = @_;	3302	my ($ns) = @_;
2262		3303
2263	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2264	},	3305	},
2265	);	3306	);
…		…
2280	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
2281	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
2282		3323
2283	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
2284		3325
2285	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
2286		3331
2287	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
2288		3333
2289	=pod	3334	=pod
2290		3335
2291	The following functions and methods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
2292		3337
2293	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
2294	cf::object::player player	3343	cf::object::player
2295	cf::player peaceful	3344	player
2296	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
2297		3351
2298	=cut	3352	=cut
2299		3353
2300	for (	3354	for (
2301	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
2302	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
2304	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
2305	) {	3361	) {
2306	no strict 'refs';
2307	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
2308	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2309	for @funs;	3364	for @funs;
2310	}	3365	}
2311		3366
…		…
2326		3381
2327	my $qcode = $code;	3382	my $qcode = $code;
2328	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2329	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
2330		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
2331	local $_;	3389	local $_;
2332	local @safe::cf::_safe_eval_args = values %vars;
2333		3390
2334	my $eval =	3391	my $eval =
2335	"do {\n"	3392	"do {\n"
2336	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2337	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
2338	. $code	3395	. $code
2339	. "\n}"	3396	. "\n}"
2340	;	3397	;
2341		3398
		3399	if ($CFG{safe_eval}) {
2342	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
2343	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2344	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
2345		3408
2346	if ($@) {	3409	if ($@) {
2347	warn "$@";	3410	warn "$@",
2348	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
2349	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
2350	}	3413	}
2351		3414
2352	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
2353	}	3416	}
2354		3417
…		…
2368	=cut	3431	=cut
2369		3432
2370	sub register_script_function {	3433	sub register_script_function {
2371	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
2372		3435
2373	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
2374	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
2375	}	3438	}
2376		3439
2377	=back	3440	=back
2378		3441
2379	=cut	3442	=cut
2380
2381	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$family> should best start with the name of the extension
2390	using it, it should be unique.
2391
2392	=over 4
2393
2394	=item $value = cf::db_get $family => $key
2395
2396	Returns a single value from the database.
2397
2398	=item cf::db_put $family => $key => $value
2399
2400	Stores the given C<$value> in the family.
2401
2402	=cut
2403
2404	our $DB;
2405
2406	sub db_init {
2407	unless ($DB) {
2408	$DB = BDB::db_create $DB_ENV;
2409
2410	cf::sync_job {
2411	eval {
2412	$DB->set_flags (BDB::CHKSUM);
2413
2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2416	cf::cleanup "db_open(db): $!" if $!;
2417	};
2418	cf::cleanup "db_open(db): $@" if $@;
2419	};
2420	}
2421	}
2422
2423	sub db_get($$) {
2424	my $key = "$_[0]/$_[1]";
2425
2426	cf::sync_job {
2427	BDB::db_get $DB, undef, $key, my $data;
2428
2429	$! ? ()
2430	: $data
2431	}
2432	}
2433
2434	sub db_put($$$) {
2435	BDB::dbreq_pri 4;
2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437	}
2438
2439	=item cf::cache $id => [$paths...], $processversion => $process
2440
2441	Generic caching function that returns the value of the resource $id,
2442	caching and regenerating as required.
2443
2444	This function can block.
2445
2446	=cut
2447
2448	sub cache {
2449	my ($id, $src, $processversion, $process) = @_;
2450
2451	my $meta =
2452	join "\x00",
2453	$processversion,
2454	map {
2455	aio_stat $_
2456	and Carp::croak "$_: $!";
2457
2458	($_, (stat _)[7,9])
2459	} @$src;
2460
2461	my $dbmeta = db_get cache => "$id/meta";
2462	if ($dbmeta ne $meta) {
2463	# changed, we may need to process
2464
2465	my @data;
2466	my $md5;
2467
2468	for (0 .. $#$src) {
2469	0 <= aio_load $src->[$_], $data[$_]
2470	or Carp::croak "$src->[$_]: $!";
2471	}
2472
2473	# if processing is expensive, check
2474	# checksum first
2475	if (1) {
2476	$md5 =
2477	join "\x00",
2478	$processversion,
2479	map {
2480	Coro::cede;
2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
2482	} 0.. $#$src;
2483
2484
2485	my $dbmd5 = db_get cache => "$id/md5";
2486	if ($dbmd5 eq $md5) {
2487	db_put cache => "$id/meta", $meta;
2488
2489	return db_get cache => "$id/data";
2490	}
2491	}
2492
2493	my $t1 = Time::HiRes::time;
2494	my $data = $process->(\@data);
2495	my $t2 = Time::HiRes::time;
2496
2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499	db_put cache => "$id/data", $data;
2500	db_put cache => "$id/md5" , $md5;
2501	db_put cache => "$id/meta", $meta;
2502
2503	return $data;
2504	}
2505
2506	db_get cache => "$id/data"
2507	}
2508
2509	=item fork_call { }, $args
2510
2511	Executes the given code block with the given arguments in a seperate
2512	process, returning the results. Everything must be serialisable with
2513	Coro::Storable. May, of course, block. Note that the executed sub may
2514	never block itself or use any form of Event handling.
2515
2516	=cut
2517
2518	sub fork_call(&@) {
2519	my ($cb, @args) = @_;
2520
2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522	# or die "socketpair: $!";
2523	pipe my $fh1, my $fh2
2524	or die "pipe: $!";
2525
2526	if (my $pid = fork) {
2527	close $fh2;
2528
2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530	$res = Coro::Storable::thaw $res;
2531
2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534	die $$res unless "ARRAY" eq ref $res;
2535
2536	return wantarray ? @$res : $res->[-1];
2537	} else {
2538	reset_signals;
2539	local $SIG{__WARN__};
2540	local $SIG{__DIE__};
2541	eval {
2542	close $fh1;
2543
2544	my @res = eval { $cb->(@args) };
2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546	};
2547
2548	warn $@ if $@;
2549	_exit 0;
2550	}
2551	}
2552		3443
2553	#############################################################################	3444	#############################################################################
2554	# the server's init and main functions	3445	# the server's init and main functions
2555		3446
2556	sub load_facedata($) {	3447	sub load_facedata($) {
2557	my ($path) = @_;	3448	my ($path) = @_;
2558		3449
		3450	# HACK to clear player env face cache, we need some signal framework
		3451	# for this (global event?)
		3452	%ext::player_env::MUSIC_FACE_CACHE = ();
		3453
		3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3455
2559	warn "loading facedata from $path\n";	3456	trace "loading facedata from $path\n";
2560		3457
2561	my $facedata;	3458	my $facedata = decode_storable load_file $path;
2562	0 < aio_load $path, $facedata
2563	or die "$path: $!";
2564
2565	$facedata = Coro::Storable::thaw $facedata;
2566		3459
2567	$facedata->{version} == 2	3460	$facedata->{version} == 2
2568	or cf::cleanup "$path: version mismatch, cannot proceed.";	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
2569		3462
		3463	# patch in the exptable
		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3465	$facedata->{resource}{"res/exp_table"} = {
		3466	type => FT_RSRC,
		3467	data => $exp_table,
		3468	hash => (Digest::MD5::md5 $exp_table),
		3469	};
		3470	cf::cede_to_tick;
		3471
2570	{	3472	{
2571	my $faces = $facedata->{faceinfo};	3473	my $faces = $facedata->{faceinfo};
2572		3474
2573	while (my ($face, $info) = each %$faces) {	3475	while (my ($face, $info) = each %$faces) {
2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3477
2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3478	cf::face::set_visibility $idx, $info->{visibility};
		3479	cf::face::set_magicmap $idx, $info->{magicmap};
2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2578	Coro::cede;	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3483
		3484	cf::cede_to_tick;
2579	}	3485	}
2580		3486
2581	while (my ($face, $info) = each %$faces) {	3487	while (my ($face, $info) = each %$faces) {
2582	next unless $info->{smooth};	3488	next unless $info->{smooth};
		3489
2583	my $idx = cf::face::find $face	3490	my $idx = cf::face::find $face
2584	or next;	3491	or next;
		3492
2585	if (my $smooth = cf::face::find $info->{smooth}) {	3493	if (my $smooth = cf::face::find $info->{smooth}) {
		3494	cf::face::set_smooth $idx, $smooth;
2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3495	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587	} else {	3496	} else {
2588	warn "smooth face '$info->{smooth}' not found for face '$face'";	3497	error "smooth face '$info->{smooth}' not found for face '$face'";
2589	}	3498	}
2590	Coro::cede;	3499
		3500	cf::cede_to_tick;
2591	}	3501	}
2592	}	3502	}
2593		3503
2594	{	3504	{
2595	my $anims = $facedata->{animinfo};	3505	my $anims = $facedata->{animinfo};
2596		3506
2597	while (my ($anim, $info) = each %$anims) {	3507	while (my ($anim, $info) = each %$anims) {
2598	cf::anim::set $anim, $info->{frames}, $info->{facings};	3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
2599	Coro::cede;	3509	cf::cede_to_tick;
2600	}	3510	}
2601		3511
2602	cf::anim::invalidate_all; # d'oh	3512	cf::anim::invalidate_all; # d'oh
2603	}	3513	}
2604		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined $info->{type}) {
		3520	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3521
		3522	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3523	cf::face::set_type $idx, $info->{type};
		3524	} else {
		3525	$RESOURCE{$name} = $info; # unused
		3526	}
		3527
		3528	cf::cede_to_tick;
		3529	}
		3530	}
		3531
		3532	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3533
2605	1	3534	1
2606	}	3535	}
2607		3536
		3537	register_exticmd fx_want => sub {
		3538	my ($ns, $want) = @_;
		3539
		3540	while (my ($k, $v) = each %$want) {
		3541	$ns->fx_want ($k, $v);
		3542	}
		3543	};
		3544
		3545	sub load_resource_file($) {
		3546	my $guard = lock_acquire "load_resource_file";
		3547
		3548	my $status = load_resource_file_ $_[0];
		3549	get_slot 0.1, 100;
		3550	cf::arch::commit_load;
		3551
		3552	$status
		3553	}
		3554
2608	sub reload_regions {	3555	sub reload_regions {
		3556	# HACK to clear player env face cache, we need some signal framework
		3557	# for this (global event?)
		3558	%ext::player_env::MUSIC_FACE_CACHE = ();
		3559
2609	load_resource_file "$MAPDIR/regions"	3560	load_resource_file "$MAPDIR/regions"
2610	or die "unable to load regions file\n";	3561	or die "unable to load regions file\n";
		3562
		3563	for (cf::region::list) {
		3564	$_->{match} = qr/$_->{match}/
		3565	if exists $_->{match};
		3566	}
2611	}	3567	}
2612		3568
2613	sub reload_facedata {	3569	sub reload_facedata {
2614	load_facedata "$DATADIR/facedata"	3570	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	3571	or die "unable to load facedata\n";
…		…
2623	sub reload_treasures {	3579	sub reload_treasures {
2624	load_resource_file "$DATADIR/treasures"	3580	load_resource_file "$DATADIR/treasures"
2625	or die "unable to load treasurelists\n";	3581	or die "unable to load treasurelists\n";
2626	}	3582	}
2627		3583
		3584	sub reload_sound {
		3585	trace "loading sound config from $DATADIR/sound\n";
		3586
		3587	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3588
		3589	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3590	my $sound = $soundconf->{compat}[$_]
		3591	or next;
		3592
		3593	my $face = cf::face::find "sound/$sound->[1]";
		3594	cf::sound::set $sound->[0] => $face;
		3595	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3596	}
		3597
		3598	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3599	my $face = cf::face::find "sound/$v";
		3600	cf::sound::set $k => $face;
		3601	}
		3602	}
		3603
2628	sub reload_resources {	3604	sub reload_resources {
2629	warn "reloading resource files...\n";	3605	trace "reloading resource files...\n";
2630		3606
		3607	reload_exp_table;
		3608	reload_materials;
		3609	reload_facedata;
		3610	reload_sound;
		3611	reload_archetypes;
2631	reload_regions;	3612	reload_regions;
2632	reload_facedata;
2633	#reload_archetypes;#d#
2634	reload_archetypes;
2635	reload_treasures;	3613	reload_treasures;
2636		3614
2637	warn "finished reloading resource files\n";	3615	trace "finished reloading resource files\n";
2638	}	3616	}
2639		3617
2640	sub init {	3618	sub reload_config {
2641	reload_resources;	3619	trace "reloading config file...\n";
2642	}
2643		3620
2644	sub cfg_load {	3621	my $config = load_file "$CONFDIR/config";
2645	open my $fh, "<:utf8", "$CONFDIR/config"	3622	utf8::decode $config;
2646	or return;	3623	*CFG = decode_yaml $config;
2647		3624
2648	local $/;
2649	*CFG = YAML::Syck::Load <$fh>;
2650
2651	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3625	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2652		3626
2653	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3627	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2654	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3628	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2655		3629
2656	if (exists $CFG{mlockall}) {	3630	if (exists $CFG{mlockall}) {
…		…
2660	};	3634	};
2661	warn $@ if $@;	3635	warn $@ if $@;
2662	}	3636	}
2663	}	3637	}
2664		3638
		3639	sub pidfile() {
		3640	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3641	or die "$PIDFILE: $!";
		3642	flock $fh, &Fcntl::LOCK_EX
		3643	or die "$PIDFILE: flock: $!";
		3644	$fh
		3645	}
		3646
		3647	# make sure only one server instance is running at any one time
		3648	sub atomic {
		3649	my $fh = pidfile;
		3650
		3651	my $pid = <$fh>;
		3652	kill 9, $pid if $pid > 0;
		3653
		3654	seek $fh, 0, 0;
		3655	print $fh $$;
		3656	}
		3657
		3658	sub main_loop {
		3659	trace "EV::loop starting\n";
		3660	if (1) {
		3661	EV::loop;
		3662	}
		3663	trace "EV::loop returned\n";
		3664	goto &main_loop unless $REALLY_UNLOOP;
		3665	}
		3666
2665	sub main {	3667	sub main {
		3668	cf::init_globals; # initialise logging
		3669
		3670	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3671	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3672	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3673	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3674
		3675	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3676
2666	# we must not ever block the main coroutine	3677	# we must not ever block the main coroutine
2667	local $Coro::idle = sub {	3678	local $Coro::idle = sub {
2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3679	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2669	(async {	3680	(async {
2670	Event::one_event;	3681	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3682	EV::loop EV::LOOP_ONESHOT;
2671	})->prio (Coro::PRIO_MAX);	3683	})->prio (Coro::PRIO_MAX);
2672	};	3684	};
2673		3685
2674	cfg_load;	3686	evthread_start IO::AIO::poll_fileno;
		3687
		3688	cf::sync_job {
		3689	cf::incloader::init ();
		3690
		3691	cf::init_anim;
		3692	cf::init_attackmess;
		3693	cf::init_dynamic;
		3694
		3695	cf::load_settings;
		3696
		3697	reload_resources;
		3698	reload_config;
2675	db_init;	3699	db_init;
		3700
		3701	cf::init_uuid;
		3702	cf::init_signals;
		3703	cf::init_skills;
		3704
		3705	cf::init_beforeplay;
		3706
		3707	atomic;
		3708
2676	load_extensions;	3709	load_extensions;
2677		3710
2678	$TICK_WATCHER->start;	3711	utime time, time, $RUNTIMEFILE;
2679	Event::loop;	3712
		3713	# no (long-running) fork's whatsoever before this point(!)
		3714	use POSIX ();
		3715	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3716
		3717	cf::_post_init 0;
		3718	};
		3719
		3720	cf::object::thawer::errors_are_fatal 0;
		3721	info "parse errors in files are no longer fatal from this point on.\n";
		3722
		3723	AE::postpone {
		3724	undef &main; # free gobs of memory :)
		3725	};
		3726
		3727	goto &main_loop;
2680	}	3728	}
2681		3729
2682	#############################################################################	3730	#############################################################################
2683	# initialisation and cleanup	3731	# initialisation and cleanup
2684		3732
2685	# install some emergency cleanup handlers	3733	# install some emergency cleanup handlers
2686	BEGIN {	3734	BEGIN {
		3735	our %SIGWATCHER = ();
2687	for my $signal (qw(INT HUP TERM)) {	3736	for my $signal (qw(INT HUP TERM)) {
2688	Event->signal (	3737	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2689	reentrant => 0,
2690	data => WF_AUTOCANCEL,
2691	signal => $signal,
2692	prio => 0,
2693	cb => sub {
2694	cf::cleanup "SIG$signal";	3738	cf::cleanup "SIG$signal";
2695	},
2696	);	3739	};
		3740	}
		3741	}
		3742
		3743	sub write_runtime_sync {
		3744	my $t0 = AE::time;
		3745
		3746	# first touch the runtime file to show we are still running:
		3747	# the fsync below can take a very very long time.
		3748
		3749	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3750
		3751	my $guard = cf::lock_acquire "write_runtime";
		3752
		3753	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3754	or return;
		3755
		3756	my $value = $cf::RUNTIME + 90 + 10;
		3757	# 10 is the runtime save interval, for a monotonic clock
		3758	# 60 allows for the watchdog to kill the server.
		3759
		3760	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3761	and return;
		3762
		3763	# always fsync - this file is important
		3764	aio_fsync $fh
		3765	and return;
		3766
		3767	# touch it again to show we are up-to-date
		3768	aio_utime $fh, undef, undef;
		3769
		3770	close $fh
		3771	or return;
		3772
		3773	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3774	and return;
		3775
		3776	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3777
2697	}	3778	1
		3779	}
		3780
		3781	our $uuid_lock;
		3782	our $uuid_skip;
		3783
		3784	sub write_uuid_sync($) {
		3785	$uuid_skip ||= $_[0];
		3786
		3787	return if $uuid_lock;
		3788	local $uuid_lock = 1;
		3789
		3790	my $uuid = "$LOCALDIR/uuid";
		3791
		3792	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3793	or return;
		3794
		3795	my $value = uuid_seq uuid_cur;
		3796
		3797	unless ($value) {
		3798	info "cowardly refusing to write zero uuid value!\n";
		3799	return;
		3800	}
		3801
		3802	my $value = uuid_str $value + $uuid_skip;
		3803	$uuid_skip = 0;
		3804
		3805	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3806	and return;
		3807
		3808	# always fsync - this file is important
		3809	aio_fsync $fh
		3810	and return;
		3811
		3812	close $fh
		3813	or return;
		3814
		3815	aio_rename "$uuid~", $uuid
		3816	and return;
		3817
		3818	trace "uuid file written ($value).\n";
		3819
		3820	1
		3821
		3822	}
		3823
		3824	sub write_uuid($$) {
		3825	my ($skip, $sync) = @_;
		3826
		3827	$sync ? write_uuid_sync $skip
		3828	: async { write_uuid_sync $skip };
2698	}	3829	}
2699		3830
2700	sub emergency_save() {	3831	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	3832	my $freeze_guard = cf::freeze_mainloop;
2702		3833
2703	warn "enter emergency perl save\n";	3834	info "emergency_perl_save: enter\n";
		3835
		3836	# this is a trade-off: we want to be very quick here, so
		3837	# save all maps without fsync, and later call a global sync
		3838	# (which in turn might be very very slow)
		3839	local $USE_FSYNC = 0;
2704		3840
2705	cf::sync_job {	3841	cf::sync_job {
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843
2706	# use a peculiar iteration method to avoid tripping on perl	3844	# use a peculiar iteration method to avoid tripping on perl
2707	# refcount bugs in for. also avoids problems with players	3845	# refcount bugs in for. also avoids problems with players
2708	# and maps saved/destroyed asynchronously.	3846	# and maps saved/destroyed asynchronously.
2709	warn "begin emergency player save\n";	3847	info "emergency_perl_save: begin player save\n";
2710	for my $login (keys %cf::PLAYER) {	3848	for my $login (keys %cf::PLAYER) {
2711	my $pl = $cf::PLAYER{$login} or next;	3849	my $pl = $cf::PLAYER{$login} or next;
2712	$pl->valid or next;	3850	$pl->valid or next;
		3851	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2713	$pl->save;	3852	$pl->save;
2714	}	3853	}
2715	warn "end emergency player save\n";	3854	info "emergency_perl_save: end player save\n";
2716		3855
2717	warn "begin emergency map save\n";	3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	info "emergency_perl_save: begin map save\n";
2718	for my $path (keys %cf::MAP) {	3859	for my $path (keys %cf::MAP) {
2719	my $map = $cf::MAP{$path} or next;	3860	my $map = $cf::MAP{$path} or next;
2720	$map->valid or next;	3861	$map->valid or next;
2721	$map->save;	3862	$map->save;
2722	}	3863	}
2723	warn "end emergency map save\n";	3864	info "emergency_perl_save: end map save\n";
2724		3865
2725	warn "begin emergency database checkpoint\n";	3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin database checkpoint\n";
2726	BDB::db_env_txn_checkpoint $DB_ENV;	3869	BDB::db_env_txn_checkpoint $DB_ENV;
2727	warn "end emergency database checkpoint\n";	3870	info "emergency_perl_save: end database checkpoint\n";
		3871
		3872	info "emergency_perl_save: begin write uuid\n";
		3873	write_uuid_sync 1;
		3874	info "emergency_perl_save: end write uuid\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	trace "emergency_perl_save: syncing database to disk";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880
		3881	info "emergency_perl_save: starting sync\n";
		3882	IO::AIO::aio_sync sub {
		3883	info "emergency_perl_save: finished sync\n";
		3884	};
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: flushing outstanding aio requests";
		3889	while (IO::AIO::nreqs || BDB::nreqs) {
		3890	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3891	}
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
2728	};	3894	};
2729		3895
2730	warn "leave emergency perl save\n";	3896	info "emergency_perl_save: leave\n";
2731	}	3897	}
2732		3898
2733	sub post_cleanup {	3899	sub post_cleanup {
2734	my ($make_core) = @_;	3900	my ($make_core) = @_;
2735		3901
		3902	IO::AIO::flush;
		3903
2736	warn Carp::longmess "post_cleanup backtrace"	3904	error Carp::longmess "post_cleanup backtrace"
2737	if $make_core;	3905	if $make_core;
		3906
		3907	my $fh = pidfile;
		3908	unlink $PIDFILE if <$fh> == $$;
		3909	}
		3910
		3911	# a safer delete_package, copied from Symbol
		3912	sub clear_package($) {
		3913	my $pkg = shift;
		3914
		3915	# expand to full symbol table name if needed
		3916	unless ($pkg =~ /^main::.*::$/) {
		3917	$pkg = "main$pkg" if $pkg =~ /^::/;
		3918	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3919	$pkg .= '::' unless $pkg =~ /::$/;
		3920	}
		3921
		3922	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3923	my $stem_symtab = *{$stem}{HASH};
		3924
		3925	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3926	or return;
		3927
		3928	# clear all symbols
		3929	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3930	for my $name (keys %$leaf_symtab) {
		3931	_gv_clear *{"$pkg$name"};
		3932	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3933	}
2738	}	3934	}
2739		3935
2740	sub do_reload_perl() {	3936	sub do_reload_perl() {
2741	# can/must only be called in main	3937	# can/must only be called in main
2742	if ($Coro::current != $Coro::main) {	3938	unless (in_main) {
2743	warn "can only reload from main coroutine";	3939	error "can only reload from main coroutine";
2744	return;	3940	return;
2745	}	3941	}
2746		3942
2747	warn "reloading...";	3943	return if $RELOAD++;
2748		3944
2749	warn "entering sync_job";	3945	my $t1 = AE::time;
2750		3946
		3947	while ($RELOAD) {
		3948	cf::get_slot 0.1, -1, "reload_perl";
		3949	info "perl_reload: reloading...";
		3950
		3951	trace "perl_reload: entering sync_job";
		3952
2751	cf::sync_job {	3953	cf::sync_job {
2752	cf::write_runtime; # external watchdog should not bark
2753	cf::emergency_save;	3954	#cf::emergency_save;
2754	cf::write_runtime; # external watchdog should not bark
2755		3955
2756	warn "syncing database to disk";
2757	BDB::db_env_txn_checkpoint $DB_ENV;
2758
2759	# if anything goes wrong in here, we should simply crash as we already saved
2760
2761	warn "cancelling all WF_AUTOCANCEL watchers";
2762	for (Event::all_watchers) {
2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2764	}
2765
2766	warn "flushing outstanding aio requests";
2767	for (;;) {
2768	BDB::flush;
2769	IO::AIO::flush;
2770	Coro::cede;
2771	last unless IO::AIO::nreqs || BDB::nreqs;
2772	warn "iterate...";
2773	}
2774
2775	++$RELOAD;
2776
2777	warn "cancelling all extension coros";	3956	trace "perl_reload: cancelling all extension coros";
2778	$_->cancel for values %EXT_CORO;	3957	$_->cancel for values %EXT_CORO;
2779	%EXT_CORO = ();	3958	%EXT_CORO = ();
2780		3959
2781	warn "removing commands";	3960	trace "perl_reload: removing commands";
2782	%COMMAND = ();	3961	%COMMAND = ();
2783		3962
2784	warn "removing ext commands";	3963	trace "perl_reload: removing ext/exti commands";
2785	%EXTCMD = ();	3964	%EXTCMD = ();
		3965	%EXTICMD = ();
2786		3966
2787	warn "unloading/nuking all extensions";	3967	trace "perl_reload: unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	3968	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	3969	trace "... unloading $pkg";
2790		3970
2791	if (my $cb = $pkg->can ("unload")) {	3971	if (my $cb = $pkg->can ("unload")) {
2792	eval {	3972	eval {
2793	$cb->($pkg);	3973	$cb->($pkg);
2794	1	3974	1
2795	} or warn "$pkg unloaded, but with errors: $@";	3975	} or error "$pkg unloaded, but with errors: $@";
		3976	}
		3977
		3978	trace "... clearing $pkg";
		3979	clear_package $pkg;
2796	}	3980	}
2797		3981
2798	warn "... nuking $pkg";
2799	Symbol::delete_package $pkg;
2800	}
2801
2802	warn "unloading all perl modules loaded from $LIBDIR";	3982	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2803	while (my ($k, $v) = each %INC) {	3983	while (my ($k, $v) = each %INC) {
2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3984	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2805		3985
2806	warn "... unloading $k";	3986	trace "... unloading $k";
2807	delete $INC{$k};	3987	delete $INC{$k};
2808		3988
2809	$k =~ s/\.pm$//;	3989	$k =~ s/\.pm$//;
2810	$k =~ s/\//::/g;	3990	$k =~ s/\//::/g;
2811		3991
2812	if (my $cb = $k->can ("unload_module")) {	3992	if (my $cb = $k->can ("unload_module")) {
2813	$cb->();	3993	$cb->();
		3994	}
		3995
		3996	clear_package $k;
2814	}	3997	}
2815		3998
2816	Symbol::delete_package $k;
2817	}
2818
2819	warn "getting rid of safe::, as good as possible";	3999	trace "perl_reload: getting rid of safe::, as good as possible";
2820	Symbol::delete_package "safe::$_"	4000	clear_package "safe::$_"
2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4001	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2822		4002
2823	warn "unloading cf.pm \"a bit\"";	4003	trace "perl_reload: unloading cf.pm \"a bit\"";
2824	delete $INC{"cf.pm"};	4004	delete $INC{"cf.pm"};
2825	delete $INC{"cf/pod.pm"};	4005	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2826		4006
2827	# don't, removes xs symbols, too,	4007	# don't, removes xs symbols, too,
2828	# and global variables created in xs	4008	# and global variables created in xs
2829	#Symbol::delete_package __PACKAGE__;	4009	#clear_package __PACKAGE__;
2830		4010
2831	warn "unload completed, starting to reload now";	4011	info "perl_reload: unload completed, starting to reload now";
2832		4012
2833	warn "reloading cf.pm";	4013	trace "perl_reload: reloading cf.pm";
2834	require cf;	4014	require cf;
2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4015	cf::_connect_to_perl_1;
2836		4016
2837	warn "loading config and database again";	4017	trace "perl_reload: loading config and database again";
2838	cf::cfg_load;	4018	cf::reload_config;
2839		4019
2840	warn "loading extensions";	4020	trace "perl_reload: loading extensions";
2841	cf::load_extensions;	4021	cf::load_extensions;
2842		4022
		4023	if ($REATTACH_ON_RELOAD) {
2843	warn "reattaching attachments to objects/players";	4024	trace "perl_reload: reattaching attachments to objects/players";
2844	_global_reattach; # objects, sockets	4025	_global_reattach; # objects, sockets
2845	warn "reattaching attachments to maps";	4026	trace "perl_reload: reattaching attachments to maps";
2846	reattach $_ for values %MAP;	4027	reattach $_ for values %MAP;
2847	warn "reattaching attachments to players";	4028	trace "perl_reload: reattaching attachments to players";
2848	reattach $_ for values %PLAYER;	4029	reattach $_ for values %PLAYER;
		4030	}
2849		4031
2850	warn "leaving sync_job";	4032	cf::_post_init 1;
2851		4033
		4034	trace "perl_reload: leaving sync_job";
		4035
2852	1	4036	1
2853	} or do {	4037	} or do {
2854	warn $@;	4038	error $@;
2855	warn "error while reloading, exiting.";	4039	cf::cleanup "perl_reload: error, exiting.";
2856	exit 1;	4040	};
		4041
		4042	--$RELOAD;
2857	};	4043	}
2858		4044
2859	warn "reloaded";	4045	$t1 = AE::time - $t1;
		4046	info "perl_reload: completed in ${t1}s\n";
2860	};	4047	};
2861		4048
2862	our $RELOAD_WATCHER; # used only during reload	4049	our $RELOAD_WATCHER; # used only during reload
2863		4050
2864	sub reload_perl() {	4051	sub reload_perl() {
2865	# doing reload synchronously and two reloads happen back-to-back,	4052	# doing reload synchronously and two reloads happen back-to-back,
2866	# coro crashes during coro_state_free->destroy here.	4053	# coro crashes during coro_state_free->destroy here.
2867		4054
2868	$RELOAD_WATCHER ||= Event->timer (	4055	$RELOAD_WATCHER ||= cf::async {
2869	reentrant => 0,	4056	Coro::AIO::aio_wait cache_extensions;
2870	after => 0,	4057
2871	data => WF_AUTOCANCEL,	4058	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2872	cb => sub {
2873	do_reload_perl;	4059	do_reload_perl;
2874	undef $RELOAD_WATCHER;	4060	undef $RELOAD_WATCHER;
2875	},	4061	};
2876	);	4062	};
2877	}	4063	}
2878		4064
2879	register_command "reload" => sub {	4065	register_command "reload" => sub {
2880	my ($who, $arg) = @_;	4066	my ($who, $arg) = @_;
2881		4067
2882	if ($who->flag (FLAG_WIZ)) {	4068	if ($who->flag (FLAG_WIZ)) {
2883	$who->message ("reloading server.");	4069	$who->message ("reloading server.");
		4070	async {
		4071	$Coro::current->{desc} = "perl_reload";
2884	async { reload_perl };	4072	reload_perl;
		4073	};
2885	}	4074	}
2886	};	4075	};
2887		4076
2888	unshift @INC, $LIBDIR;	4077	#############################################################################
2889		4078
2890	my $bug_warning = 0;	4079	my $bug_warning = 0;
2891		4080
2892	our @WAIT_FOR_TICK;
2893	our @WAIT_FOR_TICK_BEGIN;
2894
2895	sub wait_for_tick {	4081	sub wait_for_tick() {
2896	return unless $TICK_WATCHER->is_active;	4082	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2897	return if $Coro::current == $Coro::main;
2898		4083
2899	my $signal = new Coro::Signal;	4084	$WAIT_FOR_TICK->wait;
2900	push @WAIT_FOR_TICK, $signal;
2901	$signal->wait;
2902	}	4085	}
2903		4086
2904	sub wait_for_tick_begin {	4087	sub wait_for_tick_begin() {
2905	return unless $TICK_WATCHER->is_active;	4088	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2906	return if $Coro::current == $Coro::main;
2907		4089
2908	my $signal = new Coro::Signal;	4090	my $signal = new Coro::Signal;
2909	push @WAIT_FOR_TICK_BEGIN, $signal;	4091	push @WAIT_FOR_TICK_BEGIN, $signal;
2910	$signal->wait;	4092	$signal->wait;
2911	}	4093	}
2912		4094
2913	my $min = 1e6;#d#	4095	sub tick {
2914	my $avg = 10;
2915	$TICK_WATCHER = Event->timer (
2916	reentrant => 0,
2917	parked => 1,
2918	prio => 0,
2919	at => $NEXT_TICK || $TICK,
2920	data => WF_AUTOCANCEL,
2921	cb => sub {
2922	if ($Coro::current != $Coro::main) {	4096	if ($Coro::current != $Coro::main) {
2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4097	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2924	unless ++$bug_warning > 10;	4098	unless ++$bug_warning > 10;
2925	return;	4099	return;
2926	}	4100	}
2927		4101
2928	$NOW = $tick_start = Event::time;	4102	cf::one_tick; # one server iteration
2929		4103
2930	cf::server_tick; # one server iteration	4104	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2931		4105
2932	0 && sync_job {#d#	4106	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2933	for(1..10) {	4107	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2934	my $t = Event::time;	4108	Coro::async_pool {
2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"	4109	$Coro::current->{desc} = "runtime saver";
2936	or die;	4110	write_runtime_sync
2937		4111	or error "ERROR: unable to write runtime file: $!";
2938	$map->width (50);
2939	$map->height (50);
2940	$map->alloc;
2941	$map->_load_objects ("/tmp/x.map", 1);
2942	my $t = Event::time - $t;
2943
2944	#next unless $t < 0.0013;#d#
2945	if ($t < $min) {
2946	$min = $t;
2947	}
2948	$avg = $avg * 0.99 + $t * 0.01;
2949	}
2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2951	exit 0;
2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2953	};	4112	};
		4113	}
2954		4114
2955	$RUNTIME += $TICK;
2956	$NEXT_TICK += $TICK;
2957
2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
2960	Coro::async_pool {
2961	write_runtime
2962	or warn "ERROR: unable to write runtime file: $!";
2963	};
2964	}
2965
2966	# my $AFTER = Event::time;
2967	# warn $AFTER - $NOW;#d#
2968
2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4115	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2970	$sig->send;	4116	$sig->send;
2971	}	4117	}
2972	while (my $sig = shift @WAIT_FOR_TICK) {	4118	$WAIT_FOR_TICK->broadcast;
2973	$sig->send;
2974	}
2975		4119
2976	$NOW = Event::time;	4120	$LOAD = ($NOW - $TICK_START) / $TICK;
2977
2978	# if we are delayed by four ticks or more, skip them all
2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2980
2981	$TICK_WATCHER->at ($NEXT_TICK);
2982	$TICK_WATCHER->start;
2983
2984	$LOAD = ($NOW - $tick_start) / $TICK;
2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4121	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2986		4122
2987	_post_tick;	4123	if (0) {
2988		4124	if ($NEXT_TICK) {
2989		4125	my $jitter = $TICK_START - $NEXT_TICK;
		4126	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4127	debug "jitter $JITTER\n";#d#
		4128	}
2990	},	4129	}
2991	);	4130	}
2992		4131
2993	{	4132	{
2994	BDB::max_poll_time $TICK * 0.1;	4133	# configure BDB
2995	$BDB_POLL_WATCHER = Event->io (	4134
2996	reentrant => 0,
2997	fd => BDB::poll_fileno,
2998	poll => 'r',
2999	prio => 0,
3000	data => WF_AUTOCANCEL,
3001	cb => \&BDB::poll_cb,
3002	);
3003	BDB::min_parallel 8;	4135	BDB::min_parallel 16;
3004		4136	BDB::max_poll_reqs $TICK * 0.1;
3005	BDB::set_sync_prepare {	4137	#$AnyEvent::BDB::WATCHER->priority (1);
3006	my $status;
3007	my $current = $Coro::current;
3008	(
3009	sub {
3010	$status = $!;
3011	$current->ready; undef $current;
3012	},
3013	sub {
3014	Coro::schedule while defined $current;
3015	$! = $status;
3016	},
3017	)
3018	};
3019		4138
3020	unless ($DB_ENV) {	4139	unless ($DB_ENV) {
3021	$DB_ENV = BDB::db_env_create;	4140	$DB_ENV = BDB::db_env_create;
		4141	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4142	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4143	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4144	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4145	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3022		4146
3023	cf::sync_job {	4147	cf::sync_job {
3024	eval {	4148	eval {
3025	BDB::db_env_open	4149	BDB::db_env_open
3026	$DB_ENV,	4150	$DB_ENV,
…		…
3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4152	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4153	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3030	0666;	4154	0666;
3031		4155
3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4156	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3033
3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3035	$DB_ENV->set_lk_detect;
3036	};	4157	};
3037		4158
3038	cf::cleanup "db_env_open(db): $@" if $@;	4159	cf::cleanup "db_env_open(db): $@" if $@;
3039	};	4160	};
3040	}	4161	}
		4162
		4163	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4164	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4165	};
		4166	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4167	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4168	};
		4169	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4170	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4171	};
3041	}	4172	}
3042		4173
3043	{	4174	{
		4175	# configure IO::AIO
		4176
3044	IO::AIO::min_parallel 8;	4177	IO::AIO::min_parallel 8;
3045
3046	undef $Coro::AIO::WATCHER;
3047	IO::AIO::max_poll_time $TICK * 0.1;	4178	IO::AIO::max_poll_time $TICK * 0.1;
3048	$AIO_POLL_WATCHER = Event->io (	4179	undef $AnyEvent::AIO::WATCHER;
3049	reentrant => 0,
3050	data => WF_AUTOCANCEL,
3051	fd => IO::AIO::poll_fileno,
3052	poll => 'r',
3053	prio => 6,
3054	cb => \&IO::AIO::poll_cb,
3055	);
3056	}	4180	}
3057		4181
3058	my $_log_backtrace;	4182	our $_log_backtrace;
		4183	our $_log_backtrace_last;
3059		4184
3060	sub _log_backtrace {	4185	sub _log_backtrace {
3061	my ($msg, @addr) = @_;	4186	my ($msg, @addr) = @_;
3062		4187
3063	$msg =~ s/\n//;	4188	$msg =~ s/\n$//;
3064		4189
		4190	if ($_log_backtrace_last eq $msg) {
		4191	LOG llevInfo, "[ABT] $msg\n";
		4192	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
3065	# limit the # of concurrent backtraces	4193	# limit the # of concurrent backtraces
3066	if ($_log_backtrace < 2) {	4194	} elsif ($_log_backtrace < 2) {
		4195	$_log_backtrace_last = $msg;
3067	++$_log_backtrace;	4196	++$_log_backtrace;
		4197	my $perl_bt = Carp::longmess $msg;
3068	async {	4198	async {
		4199	$Coro::current->{desc} = "abt $msg";
		4200
3069	my @bt = fork_call {	4201	my @bt = fork_call {
3070	@addr = map { sprintf "%x", $_ } @addr;	4202	@addr = map { sprintf "%x", $_ } @addr;
3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4203	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4204	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3073	or die "addr2line: $!";	4205	or die "addr2line: $!";
…		…
3081	}	4213	}
3082		4214
3083	@funcs	4215	@funcs
3084	};	4216	};
3085		4217
3086	LOG llevInfo, "[ABT] $msg\n";	4218	LOG llevInfo, "[ABT] $perl_bt\n";
		4219	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3087	LOG llevInfo, "[ABT] $_\n" for @bt;	4220	LOG llevInfo, "[ABT] $_\n" for @bt;
3088	--$_log_backtrace;	4221	--$_log_backtrace;
3089	};	4222	};
3090	} else {	4223	} else {
3091	LOG llevInfo, "[ABT] $msg\n";	4224	LOG llevInfo, "[ABT] $msg\n";
3092	LOG llevInfo, "[ABT] [suppressed]\n";	4225	LOG llevInfo, "[ABT] [overload, suppressed]\n";
3093	}	4226	}
3094	}	4227	}
3095		4228
3096	# load additional modules	4229	# load additional modules
3097	use cf::pod;	4230	require "cf/$_.pm" for @EXTRA_MODULES;
		4231	cf::_connect_to_perl_2;
3098		4232
3099	END { cf::emergency_save }	4233	END { cf::emergency_save }
3100		4234
3101	1	4235	1
3102		4236

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