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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC vs.
Revision 1.310 by elmex, Mon Jul 16 15:43:49 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	132	every server tick.
102		133
103	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
127		177
128	=back	178	=back
129		179
130	=cut	180	=cut
131		181
132	BEGIN {	182	BEGIN {
133	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	184	my $msg = join "", @_;
135	utf8::encode $msg;
136		185
137	$msg .= "\n"	186	$msg .= "\n"
138	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
139		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
140	LOG llevError, $msg;	192	LOG llevError, $msg;
141	};	193	};
142	}	194	}
143		195
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		203
151	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	205	# within the Safe compartment.
153	for my $pkg (qw(	206	for my $pkg (qw(
154	cf::global cf::attachable	207	cf::global cf::attachable
…		…
162	}	215	}
163		216
164	$Event::DIED = sub {	217	$Event::DIED = sub {
165	warn "error in event callback: @_";	218	warn "error in event callback: @_";
166	};	219	};
		220
		221	#############################################################################
167		222
168	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
169		224
170	=over 4	225	=over 4
171		226
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	246	$d
192	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
193	}	248	}
194		249
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
198		251
199	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
200		253
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
209		255
210	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
211		257
212	=cut	258	=cut
213		259
214	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
216	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
218		264
219	=item cf::lock_wait $string	265	=item cf::lock_wait $string
220		266
221	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
222		268
…		…
228	returned.	274	returned.
229		275
230	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
232		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
233	=cut	283	=cut
234		284
235	our %LOCK;	285	our %LOCK;
236		286
237	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
258	}	308	}
259	}	309	}
260		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
261	sub freeze_mainloop {	317	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
263		319
264	my $guard = Coro::guard {	320	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	322	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
270	$guard	324	$guard
271	}	325	}
272		326
273	=item cf::async { BLOCK }	327	=item cf::async { BLOCK }
…		…
280		334
281	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
282		336
283	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
284		338
285	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
288		343
289	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
292	fast or be very important.	347	fast or be very important.
…		…
295		350
296	sub sync_job(&) {	351	sub sync_job(&) {
297	my ($job) = @_;	352	my ($job) = @_;
298		353
299	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
300	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
302		359
303	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	361	# (but this is cancel-safe)
…		…
315		372
316	while ($busy) {	373	while ($busy) {
317	Coro::cede or Event::one_event;	374	Coro::cede or Event::one_event;
318	}	375	}
319		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
320	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
321	} else {	385	} else {
322	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
323		387
324	$job->()	388	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
344		408
345	$coro	409	$coro
346	}	410	}
347		411
348	sub write_runtime {	412	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		413
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
352	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
353		418
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	419	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		420
358	aio_fsync $fh	421	sub _store_scalar {
359	and return;	422	open my $fh, ">", \my $buf
360		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
361	close $fh	425	close $fh;
362	or return;
363		426
364	aio_rename "$runtime~", $runtime	427	$buf
365	and return;	428	}
366		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
367	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	599	}
369		600
370	=back	601	=back
371		602
372	=cut	603	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
381		612
382	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	615	Crossfire TRT).
385		616
386	=over 4	617	=over 4
387		618
388	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
389		620
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	735	our @CB_MAP = ();
505		736
506	my %attachment;	737	my %attachment;
507		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
508	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
510		747
511	use sort 'stable';	748	use sort 'stable';
512		749
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
547		784
548	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		789
553	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	791	my $pkg = shift @arg;
555		792
556	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
586	}	823	}
587		824
588	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
589	} else {	826	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	828	}
592		829
593	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
594	}	831	}
595		832
…		…
597	if (ref $_[0]) {	834	if (ref $_[0]) {
598	_object_attach @_;	835	_object_attach @_;
599	} else {	836	} else {
600	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
601	}	838	}
		839	_recalc_want;
602	};	840	};
603		841
604	# all those should be optimised	842	# all those should be optimised
605	sub cf::attachable::detach {	843	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
610	reattach ($obj);	848	reattach ($obj);
611	} else {	849	} else {
612	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
613	}	851	}
		852	_recalc_want;
614	};	853	};
615		854
616	sub cf::attachable::attached {	855	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
618		857
…		…
633	";	872	";
634	die if $@;	873	die if $@;
635	}	874	}
636		875
637	our $override;	876	our $override;
638	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
639		878
640	sub override {	879	sub override {
641	$override = 1;	880	$override = 1;
642	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
643	}	882	}
644		883
645	sub do_invoke {	884	sub do_invoke {
646	my $event = shift;	885	my $event = shift;
647	my $callbacks = shift;	886	my $callbacks = shift;
648		887
649	@invoke_results = ();	888	@INVOKE_RESULTS = ();
650		889
651	local $override;	890	local $override;
652		891
653	for (@$callbacks) {	892	for (@$callbacks) {
654	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
671		910
672	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
673		912
674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
675	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
676	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		916
678	=back	917	=back
679		918
680	=cut	919	=cut
681		920
…		…
683	# object support	922	# object support
684		923
685	sub reattach {	924	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	925	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	926	my ($obj) = @_;
		927
		928	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		929
689	my $registry = $obj->registry;	930	my $registry = $obj->registry;
690		931
691	@$registry = ();	932	@$registry = ();
692		933
…		…
739	$filename, length $$rdata, scalar @$objs;	980	$filename, length $$rdata, scalar @$objs;
740		981
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	984	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744	aio_fsync $fh;	985	aio_fsync $fh if $cf::USE_FSYNC;
745	close $fh;	986	close $fh;
746		987
747	if (@$objs) {	988	if (@$objs) {
748	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	989	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
749	chmod SAVE_MODE, $fh;	990	chmod SAVE_MODE, $fh;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	991	my $data = Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	992	aio_write $fh, 0, (length $data), $data, 0;
752	aio_fsync $fh;	993	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	994	close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	995	aio_rename "$filename.pst~", "$filename.pst";
755	}	996	}
756	} else {	997	} else {
757	aio_unlink "$filename.pst";	998	aio_unlink "$filename.pst";
…		…
789	or return;	1030	or return;
790	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
791	}	1032	}
792		1033
793	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
795	return ($data, $av);	1036	return ($data, $av);
796	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
797		1044
798	#############################################################################	1045	#############################################################################
799	# command handling &c	1046	# command handling &c
800		1047
801	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
814	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
815	}	1062	}
816		1063
817	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
818		1065
819	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
820		1071
821	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
822	called.	1073	called.
823		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
824	=cut	1086	=cut
825		1087
826	sub register_extcmd {	1088	sub register_extcmd {
827	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
828		1090
829	$EXTCMD{$name} = $cb;	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
830	}	1098	}
831		1099
832	cf::player->attach (	1100	cf::player->attach (
833	on_command => sub {	1101	on_command => sub {
834	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
843	cf::override;	1111	cf::override;
844	},	1112	},
845	on_extcmd => sub {	1113	on_extcmd => sub {
846	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
847		1115
848	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
849		1117
850	if (ref $msg) {	1118	if (ref $msg) {
851	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
852	if (my %reply = $cb->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
853	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
859		1127
860	cf::override;	1128	cf::override;
861	},	1129	},
862	);	1130	);
863		1131
864	sub load_extension {
865	my ($path) = @_;
866
867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
868	my $base = $1;
869	my $pkg = $1;
870	$pkg =~ s/[^[:word:]]/_/g;
871	$pkg = "ext::$pkg";
872
873	warn "... loading '$path' into '$pkg'\n";
874
875	open my $fh, "<:utf8", $path
876	or die "$path: $!";
877
878	my $source =
879	"package $pkg; use strict; use utf8;\n"
880	. "#line 1 \"$path\"\n{\n"
881	. (do { local $/; <$fh> })
882	. "\n};\n1";
883
884	unless (eval $source) {
885	my $msg = $@ ? "$path: $@\n"
886	: "extension disabled.\n";
887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
888	warn $@;
889	warn "mandatory extension failed to load, exiting.\n";
890	exit 1;
891	}
892	die $@;
893	}
894
895	push @EXTS, $pkg;
896	}
897
898	sub load_extensions {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
899	for my $ext (<$LIBDIR/*.ext>) {	1136	for my $path (<$LIBDIR/*.ext>) {
900	next unless -r $ext;	1137	next unless -r $path;
901	eval {	1138
902	load_extension $ext;	1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
903	1	1196	}
904	} or warn "$ext not loaded: $@";	1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
905	}	1202	};
906	}	1203	}
907		1204
908	#############################################################################	1205	#############################################################################
909		1206
		1207	=back
		1208
910	=head2 CORE EXTENSIONS	1209	=head2 CORE EXTENSIONS
911		1210
912	Functions and methods that extend core crossfire objects.	1211	Functions and methods that extend core crossfire objects.
913		1212
914	=cut	1213	=cut
…		…
926	Returns the given player object, loading it if necessary (might block).	1225	Returns the given player object, loading it if necessary (might block).
927		1226
928	=cut	1227	=cut
929		1228
930	sub playerdir($) {	1229	sub playerdir($) {
931	cf::localdir	1230	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1232	}
937		1233
938	sub path($) {	1234	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1236
941	(playerdir $login) . "/$login.pl"	1237	(playerdir $login) . "/playerdata"
942	}	1238	}
943		1239
944	sub find_active($) {	1240	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1241	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1242	and $cf::PLAYER{$_[0]}->active
…		…
949		1245
950	sub exists($) {	1246	sub exists($) {
951	my ($login) = @_;	1247	my ($login) = @_;
952		1248
953	$cf::PLAYER{$login}	1249	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1250	or cf::sync_job { !aio_stat path $login }
955	}	1251	}
956		1252
957	sub find($) {	1253	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1254	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1255	my $login = $_[0];
960		1256
961	my $guard = cf::lock_acquire "user_find:$login";	1257	my $guard = cf::lock_acquire "user_find:$login";
962		1258
963	$cf::PLAYER{$_[0]} || do {	1259	$cf::PLAYER{$_[0]} || do {
		1260	# rename old playerfiles to new ones
		1261	#TODO: remove when no longer required
		1262	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1263	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1264	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1265	aio_unlink +(playerdir $login) . "/$login.pl";
		1266
964	my $pl = load_pl path $login	1267	my $pl = load_pl path $login
965	or return;	1268	or return;
966	$cf::PLAYER{$login} = $pl	1269	$cf::PLAYER{$login} = $pl
967	}	1270	}
968	}	1271	}
…		…
1005		1308
1006	=cut	1309	=cut
1007		1310
1008	sub quit_character {	1311	sub quit_character {
1009	my ($pl) = @_;	1312	my ($pl) = @_;
		1313
		1314	my $name = $pl->ob->name;
1010		1315
1011	$pl->{deny_save} = 1;	1316	$pl->{deny_save} = 1;
1012	$pl->password ("*"); # this should lock out the player until we nuked the dir	1317	$pl->password ("*"); # this should lock out the player until we nuked the dir
1013		1318
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1319	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1019	my $path = playerdir $pl;	1324	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1325	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1326	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1327	delete $cf::PLAYER{$pl->ob->name};
1023	$pl->destroy;	1328	$pl->destroy;
		1329
		1330	my $prefix = qr<^~\Q$name\E/>;
		1331
		1332	# nuke player maps
		1333	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1334
1024	IO::AIO::aio_rmtree $temp;	1335	IO::AIO::aio_rmtree $temp;
		1336	}
		1337
		1338	=item $pl->kick
		1339
		1340	Kicks a player out of the game. This destroys the connection.
		1341
		1342	=cut
		1343
		1344	sub kick {
		1345	my ($pl, $kicker) = @_;
		1346
		1347	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1348	$pl->killer ("kicked");
		1349	$pl->ns->destroy;
1025	}	1350	}
1026		1351
1027	=item cf::player::list_logins	1352	=item cf::player::list_logins
1028		1353
1029	Returns am arrayref of all valid playernames in the system, can take a	1354	Returns am arrayref of all valid playernames in the system, can take a
1030	while and may block, so not sync_job-capable, ever.	1355	while and may block, so not sync_job-capable, ever.
1031		1356
1032	=cut	1357	=cut
1033		1358
1034	sub list_logins {	1359	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1360	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1361	or return [];
1037		1362
1038	my @logins;	1363	my @logins;
1039		1364
1040	for my $login (@$dirs) {	1365	for my $login (@$dirs) {
…		…
1057	=cut	1382	=cut
1058		1383
1059	sub maps($) {	1384	sub maps($) {
1060	my ($pl) = @_;	1385	my ($pl) = @_;
1061		1386
		1387	$pl = ref $pl ? $pl->ob->name : $pl;
		1388
1062	my $files = aio_readdir playerdir $pl	1389	my $files = aio_readdir playerdir $pl
1063	or return;	1390	or return;
1064		1391
1065	my @paths;	1392	my @paths;
1066		1393
1067	for (@$files) {	1394	for (@$files) {
1068	utf8::decode $_;	1395	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1396	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1397	next unless /^$PATH_SEP/o;
1071		1398
1072	s/\.map$//;	1399	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1400	}
1075		1401
1076	\@paths	1402	\@paths
1077	}	1403	}
1078		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1455	=item $player->ext_reply ($msgid, %msg)
1080		1456
1081	Sends an ext reply to the player.	1457	Sends an ext reply to the player.
1082		1458
1083	=cut	1459	=cut
1084		1460
1085	sub ext_reply($$$%) {	1461	sub ext_reply($$%) {
1086	my ($self, $id, %msg) = @_;	1462	my ($self, $id, %msg) = @_;
1087		1463
1088	$msg{msgid} = $id;	1464	$msg{msgid} = $id;
1089		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1090	$self->send ("ext " . cf::to_json \%msg);
1091	}	1466	}
1092		1467
1093	package cf;	1468	=item $player->ext_event ($type, %msg)
		1469
		1470	Sends an ext event to the client.
		1471
		1472	=cut
		1473
		1474	sub ext_event($$%) {
		1475	my ($self, $type, %msg) = @_;
		1476
		1477	$self->ns->ext_event ($type, %msg);
		1478	}
		1479
		1480	=head3 cf::region
		1481
		1482	=over 4
		1483
		1484	=cut
		1485
		1486	package cf::region;
		1487
		1488	=item cf::region::find_by_path $path
		1489
		1490	Tries to decuce the likely region for a map knowing only its path.
		1491
		1492	=cut
		1493
		1494	sub find_by_path($) {
		1495	my ($path) = @_;
		1496
		1497	my ($match, $specificity);
		1498
		1499	for my $region (list) {
		1500	if ($region->{match} && $path =~ $region->{match}) {
		1501	($match, $specificity) = ($region, $region->specificity)
		1502	if $region->specificity > $specificity;
		1503	}
		1504	}
		1505
		1506	$match
		1507	}
1094		1508
1095	=back	1509	=back
1096
1097		1510
1098	=head3 cf::map	1511	=head3 cf::map
1099		1512
1100	=over 4	1513	=over 4
1101		1514
…		…
1105		1518
1106	use Fcntl;	1519	use Fcntl;
1107	use Coro::AIO;	1520	use Coro::AIO;
1108		1521
1109	use overload	1522	use overload
1110	'""' => \&as_string;	1523	'""' => \&as_string,
		1524	fallback => 1;
1111		1525
1112	our $MAX_RESET = 3600;	1526	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1527	our $DEFAULT_RESET = 3000;
1114		1528
1115	sub generate_random_map {	1529	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1530	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1531	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1532	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1533	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1534	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1535	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1542	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1543	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1544	)
1132	}	1545	}
1133		1546
		1547	=item cf::map->register ($regex, $prio)
		1548
		1549	Register a handler for the map path matching the given regex at the
		1550	givne priority (higher is better, built-in handlers have priority 0, the
		1551	default).
		1552
		1553	=cut
		1554
1134	sub register {	1555	sub register {
1135	my (undef, $regex) = @_;	1556	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1557	my $pkg = caller;
1137		1558
1138	no strict;	1559	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1560	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1561
1141	$EXT_MAP{$pkg} = qr<$regex>;	1562	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1563	}
1143		1564
1144	# also paths starting with '/'	1565	# also paths starting with '/'
1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1566	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1567
		1568	sub thawer_merge {
		1569	my ($self, $merge) = @_;
		1570
		1571	# we have to keep some variables in memory intact
		1572	local $self->{path};
		1573	local $self->{load_path};
		1574
		1575	$self->SUPER::thawer_merge ($merge);
		1576	}
1146		1577
1147	sub normalise {	1578	sub normalise {
1148	my ($path, $base) = @_;	1579	my ($path, $base) = @_;
		1580
		1581	$path = "$path"; # make sure its a string
		1582
		1583	$path =~ s/\.map$//;
1149		1584
1150	# map plan:	1585	# map plan:
1151	#	1586	#
1152	# /! non-realised random map exit (special hack!)	1587	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1588	# {... are special paths that are not being touched
…		…
1181		1616
1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1617	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183		1618
1184	$path = normalise $path, $base;	1619	$path = normalise $path, $base;
1185		1620
1186	for my $pkg (keys %EXT_MAP) {	1621	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1622	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1623	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1624	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1625	$self->init; # pass $1 etc.
1191	return $self;	1626	return $self;
1192	}	1627	}
1193	}	1628	}
1194		1629
1195	Carp::carp "unable to resolve path '$path'.";	1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
1196	()	1631	()
1197	}	1632	}
1198		1633
1199	sub init {	1634	sub init {
1200	my ($self) = @_;	1635	my ($self) = @_;
…		…
1215		1650
1216	# the original (read-only) location	1651	# the original (read-only) location
1217	sub load_path {	1652	sub load_path {
1218	my ($self) = @_;	1653	my ($self) = @_;
1219		1654
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1655	"$MAPDIR/$self->{path}.map"
1221	}	1656	}
1222		1657
1223	# the temporary/swap location	1658	# the temporary/swap location
1224	sub save_path {	1659	sub save_path {
1225	my ($self) = @_;	1660	my ($self) = @_;
1226		1661
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1663	"$TMPDIR/$path.map"
1229	}	1664	}
1230		1665
1231	# the unique path, undef == no special unique path	1666	# the unique path, undef == no special unique path
1232	sub uniq_path {	1667	sub uniq_path {
1233	my ($self) = @_;	1668	my ($self) = @_;
1234		1669
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1671	"$UNIQUEDIR/$path"
1237	}	1672	}
1238		1673
1239	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1240	# all maps in C++...	1675	# all maps in C++...
1241	sub change_all_map_light {	1676	sub change_all_map_light {
…		…
1243		1678
1244	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1245	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
1246	}	1681	}
1247		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
		1689	}
		1690
1248	sub unlink_save {	1691	sub unlink_save {
1249	my ($self) = @_;	1692	my ($self) = @_;
1250		1693
1251	utf8::encode (my $save = $self->save_path);	1694	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1695	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1696	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1697	}
1255		1698
1256	sub load_header_from($) {	1699	sub load_header_from($) {
1257	my ($self, $path) = @_;	1700	my ($self, $path) = @_;
1258		1701
1259	utf8::encode $path;	1702	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1703	#aio_open $path, O_RDONLY, 0
1261	or return;	1704	# or return;
1262		1705
1263	$self->_load_header ($path)	1706	$self->_load_header ($path)
1264	or return;	1707	or return;
1265		1708
1266	$self->{load_path} = $path;	1709	$self->{load_path} = $path;
1267		1710
1268	1	1711	1
1269	}	1712	}
1270		1713
1271	sub load_orig {	1714	sub load_header_orig {
1272	my ($self) = @_;	1715	my ($self) = @_;
1273		1716
1274	$self->load_header_from ($self->load_path)	1717	$self->load_header_from ($self->load_path)
1275	}	1718	}
1276		1719
1277	sub load_temp {	1720	sub load_header_temp {
1278	my ($self) = @_;	1721	my ($self) = @_;
1279		1722
1280	$self->load_header_from ($self->save_path)	1723	$self->load_header_from ($self->save_path)
		1724	}
		1725
		1726	sub prepare_temp {
		1727	my ($self) = @_;
		1728
		1729	$self->last_access ((delete $self->{last_access})
		1730	|| $cf::RUNTIME); #d#
		1731	# safety
		1732	$self->{instantiate_time} = $cf::RUNTIME
		1733	if $self->{instantiate_time} > $cf::RUNTIME;
		1734	}
		1735
		1736	sub prepare_orig {
		1737	my ($self) = @_;
		1738
		1739	$self->{load_original} = 1;
		1740	$self->{instantiate_time} = $cf::RUNTIME;
		1741	$self->last_access ($cf::RUNTIME);
		1742	$self->instantiate;
1281	}	1743	}
1282		1744
1283	sub load_header {	1745	sub load_header {
1284	my ($self) = @_;	1746	my ($self) = @_;
1285		1747
1286	if ($self->load_temp) {	1748	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	1749	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	1750	} else {
1293	$self->load_orig	1751	$self->load_header_orig
1294	or return;	1752	or return;
1295		1753	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	1754	}
		1755
		1756	$self->{deny_reset} = 1
		1757	if $self->no_reset;
		1758
		1759	$self->default_region (cf::region::find_by_path $self->{path})
		1760	unless $self->default_region;
1301		1761
1302	1	1762	1
1303	}	1763	}
1304		1764
1305	sub find;	1765	sub find;
…		…
1318	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1319		1779
1320	$map->load_header	1780	$map->load_header
1321	or return;	1781	or return;
1322		1782
1323	if ($map->should_reset) {	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1784	# doing this can freeze the server in a sync job, obviously
		1785	#$cf::WAIT_FOR_TICK->wait;
1324	$map->reset;	1786	$map->reset;
1325	undef $guard;	1787	undef $guard;
1326	$map = find $path	1788	return find $path;
1327	or return;
1328	}	1789	}
1329		1790
1330	$cf::MAP{$path} = $map	1791	$cf::MAP{$path} = $map
1331	}	1792	}
1332	}	1793	}
		1794
		1795	sub pre_load { }
		1796	sub post_load { }
1333		1797
1334	sub load {	1798	sub load {
1335	my ($self) = @_;	1799	my ($self) = @_;
1336		1800
		1801	local $self->{deny_reset} = 1; # loading can take a long time
		1802
1337	my $path = $self->{path};	1803	my $path = $self->{path};
		1804
		1805	{
1338	my $guard = cf::lock_acquire "map_load:$path";	1806	my $guard = cf::lock_acquire "map_load:$path";
1339		1807
1340	return if $self->in_memory != cf::MAP_SWAPPED;	1808	return if $self->in_memory != cf::MAP_SWAPPED;
1341		1809
1342	$self->in_memory (cf::MAP_LOADING);	1810	$self->in_memory (cf::MAP_LOADING);
1343		1811
1344	$self->alloc;	1812	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)
1346	or return;
1347		1813
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->pre_load;
1349	if delete $self->{load_original};
1350
1351	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {
1354	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);
1356	}
1357	}
1358
1359	Coro::cede;
1360
1361	# now do the right thing for maps
1362	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;	1815	Coro::cede;
1369	$self->set_darkness_map;	1816
		1817	$self->_load_objects ($self->{load_path}, 1)
		1818	or return;
		1819
		1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1821	if delete $self->{load_original};
		1822
		1823	if (my $uniq = $self->uniq_path) {
		1824	utf8::encode $uniq;
		1825	if (aio_open $uniq, O_RDONLY, 0) {
		1826	$self->clear_unique_items;
		1827	$self->_load_objects ($uniq, 0);
		1828	}
		1829	}
		1830
		1831	Coro::cede;
		1832	# now do the right thing for maps
		1833	$self->link_multipart_objects;
1370	$self->difficulty ($self->estimate_difficulty)	1834	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	1835	unless $self->difficulty;
1372	Coro::cede;	1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1373	$self->activate;	1845	$self->activate;
1374	}	1846	}
1375		1847
1376	$self->in_memory (cf::MAP_IN_MEMORY);	1848	$self->in_memory (cf::MAP_IN_MEMORY);
		1849	}
		1850
		1851	$self->post_load;
1377	}	1852	}
1378		1853
1379	sub customise_for {	1854	sub customise_for {
1380	my ($self, $ob) = @_;	1855	my ($self, $ob) = @_;
1381		1856
1382	return find "~" . $ob->name . "/" . $self->{path}	1857	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
1384		1862
1385	$self	1863	$self
1386	}	1864	}
1387		1865
1388	# find and load all maps in the 3x3 area around a map	1866	# find and load all maps in the 3x3 area around a map
…		…
1420		1898
1421	cf::sync_job { $map->load };	1899	cf::sync_job { $map->load };
1422	}	1900	}
1423		1901
1424	our %MAP_PREFETCH;	1902	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	1903	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		1904
1438	sub find_async {	1905	sub find_async {
1439	my ($path, $origin) = @_;	1906	my ($path, $origin) = @_;
1440		1907
1441	$path = normalise $path, $origin && $origin->{path};	1908	$path = normalise $path, $origin && $origin->{path};
1442		1909
1443	if (my $map = $cf::MAP{$path}) {	1910	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1911	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445	}	1912	}
1446		1913
1447	$MAP_PREFETCH{$path} = 0;	1914	undef $MAP_PREFETCH{$path};
		1915	$MAP_PREFETCHER ||= cf::async {
		1916	while (%MAP_PREFETCH) {
		1917	for my $path (keys %MAP_PREFETCH) {
		1918	if (my $map = find $path) {
		1919	$map->load;
		1920	}
		1921
		1922	delete $MAP_PREFETCH{$path};
		1923	}
		1924	}
		1925	undef $MAP_PREFETCHER;
		1926	};
1448	$MAP_PREFETCHER->ready;	1927	$MAP_PREFETCHER->prio (6);
1449		1928
1450	()	1929	()
1451	}	1930	}
1452		1931
1453	sub save {	1932	sub save {
…		…
1498		1977
1499	sub reset_at {	1978	sub reset_at {
1500	my ($self) = @_;	1979	my ($self) = @_;
1501		1980
1502	# TODO: safety, remove and allow resettable per-player maps	1981	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	1982	return 1e99 if $self->{deny_reset};
1505		1983
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		1986
…		…
1513	my ($self) = @_;	1991	my ($self) = @_;
1514		1992
1515	$self->reset_at <= $cf::RUNTIME	1993	$self->reset_at <= $cf::RUNTIME
1516	}	1994	}
1517		1995
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	1996	sub reset {
1533	my ($self) = @_;	1997	my ($self) = @_;
1534		1998
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		2000
1537	return if $self->players;	2001	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		2002
1540	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
		2004
		2005	$self->in_memory (cf::MAP_SWAPPED);
		2006
		2007	# need to save uniques path
		2008	unless ($self->{deny_save}) {
		2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2010
		2011	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2012	if $uniq;
		2013	}
1541		2014
1542	delete $cf::MAP{$self->path};	2015	delete $cf::MAP{$self->path};
1543		2016
1544	$self->in_memory (cf::MAP_SWAPPED);
1545	$self->clear;	2017	$self->clear;
1546		2018
1547	$_->clear_links_to ($self) for values %cf::MAP;	2019	$_->clear_links_to ($self) for values %cf::MAP;
1548		2020
1549	$self->unlink_save;	2021	$self->unlink_save;
…		…
1553	my $nuke_counter = "aaaa";	2025	my $nuke_counter = "aaaa";
1554		2026
1555	sub nuke {	2027	sub nuke {
1556	my ($self) = @_;	2028	my ($self) = @_;
1557		2029
		2030	delete $cf::MAP{$self->path};
		2031
		2032	$self->unlink_save;
		2033
		2034	bless $self, "cf::map";
		2035	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	2036	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	2037	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	2038	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2039
		2040	$cf::MAP{$self->path} = $self;
		2041
1561	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
		2043	}
		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
		2053	[
		2054	map {
		2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
		2061	}
		2062
		2063	=item $maps = cf::map::random_maps
		2064
		2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
		2067
		2068	=cut
		2069
		2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
1562	}	2079	}
1563		2080
1564	=item cf::map::unique_maps	2081	=item cf::map::unique_maps
1565		2082
1566	Returns an arrayref of paths of all shared maps that have	2083	Returns an arrayref of paths of all shared maps that have
1567	instantiated unique items. May block.	2084	instantiated unique items. May block.
1568		2085
1569	=cut	2086	=cut
1570		2087
1571	sub unique_maps() {	2088	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2089	[
1573	or return;	2090	map {
1574
1575	my @paths;
1576
1577	for (@$files) {
1578	utf8::decode $_;	2091	utf8::decode $_;
1579	next if /\.pst$/;
1580	next unless /^$PATH_SEP/o;
1581
1582	s/\.map$//;	2092	/\.map$/
1583	push @paths, $_;	2093	? normalise $_
		2094	: ()
		2095	} @{ aio_readdir $UNIQUEDIR or [] }
1584	}	2096	]
1585
1586	\@paths
1587	}	2097	}
1588		2098
1589	package cf;	2099	package cf;
1590		2100
1591	=back	2101	=back
…		…
1637		2147
1638	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1639		2149
1640	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1641	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1642	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1643	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1644	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1645	}	2169	}
1646	}	2170	}
1647		2171
1648	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1649		2173
…		…
1682	=cut	2206	=cut
1683		2207
1684	sub link_map {	2208	sub link_map {
1685	unless ($LINK_MAP) {	2209	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	2210	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2211	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	2212	$LINK_MAP->load;
1689	}	2213	}
1690		2214
1691	$LINK_MAP	2215	$LINK_MAP
1692	}	2216	}
…		…
1697	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1698		2222
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		2224
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1703		2227
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	2229	}
1706		2230
1707	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1709		2235
1710	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1711		2237
1712	unless ($map) {	2238	unless ($map) {
1713	# restore original map position	2239	# restore original map position
…		…
1731	$map->load;	2257	$map->load;
1732	$map->load_diag;	2258	$map->load_diag;
1733		2259
1734	return unless $self->contr->active;	2260	return unless $self->contr->active;
1735	$self->activate_recursive;	2261	$self->activate_recursive;
		2262
		2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1737	}	2265	}
1738		2266
1739	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1740	on_logout => sub {
1741	my ($pl) = @_;
1742		2268
1743	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1744	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1745	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1746	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1747	};	2273	be called at the end of this process.
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752		2274
1753	# try to abort aborted map switching on player login :)
1754	# should happen only on crashes
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770
1771	=item $player_object->goto ($path, $x, $y)
1772
1773	=cut	2275	=cut
		2276
		2277	our $GOTOGEN;
1774		2278
1775	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1776	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1777		2284
1778	$self->enter_link;	2285	$self->enter_link;
1779		2286
1780	(async {	2287	(async {
		2288	my $map = eval {
1781	my $map = cf::map::find $path;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
1783		2293	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	2294	} else {
1785	# if $map;
1786
1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
1788		2297
		2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
		2304	}
		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1789	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1790	})->prio (1);	2312	})->prio (1);
1791	}	2313	}
1792		2314
1793	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1794		2316
…		…
1796		2318
1797	sub parse_random_map_params {	2319	sub parse_random_map_params {
1798	my ($spec) = @_;	2320	my ($spec) = @_;
1799		2321
1800	my $rmp = { # defaults	2322	my $rmp = { # defaults
1801	xsize => 10,	2323	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2324	ysize => (cf::rndm 15, 40),
		2325	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2326	#layout => string,
1803	};	2327	};
1804		2328
1805	for (split /\n/, $spec) {	2329	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2330	my ($k, $v) = split /\s+/, $_, 2;
1807		2331
…		…
1811	$rmp	2335	$rmp
1812	}	2336	}
1813		2337
1814	sub prepare_random_map {	2338	sub prepare_random_map {
1815	my ($exit) = @_;	2339	my ($exit) = @_;
		2340
		2341	my $guard = cf::lock_acquire "exit_prepare:$exit";
1816		2342
1817	# all this does is basically replace the /! path by	2343	# all this does is basically replace the /! path by
1818	# a new random map path (?random/...) with a seed	2344	# a new random map path (?random/...) with a seed
1819	# that depends on the exit object	2345	# that depends on the exit object
1820		2346
1821	my $rmp = parse_random_map_params $exit->msg;	2347	my $rmp = parse_random_map_params $exit->msg;
1822		2348
1823	if ($exit->map) {	2349	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2350	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2351	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2352	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2353	$rmp->{origin_y} = $exit->y;
1828	}	2354	}
1829		2355
1830	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1831		2357
1832	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1833	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
		2360	my $meta = "$RANDOMDIR/$md5.meta";
1834		2361
1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
		2364	undef $fh;
		2365	aio_rename "$meta~", $meta;
1837		2366
1838	$exit->slaying ("?random/$md5");	2367	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2368	$exit->msg (undef);
1840	}	2369	}
1841	}	2370	}
…		…
1843	sub cf::object::player::enter_exit {	2372	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2373	my ($self, $exit) = @_;
1845		2374
1846	return unless $self->type == cf::PLAYER;	2375	return unless $self->type == cf::PLAYER;
1847		2376
		2377	if ($exit->slaying eq "/!") {
		2378	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2379	# the problem is that $exit might not survive long enough
		2380	# so it needs to be done right now, right here
		2381	cf::sync_job { prepare_random_map $exit };
		2382	}
		2383
		2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2385	my $hp = $exit->stats->hp;
		2386	my $sp = $exit->stats->sp;
		2387
1848	$self->enter_link;	2388	$self->enter_link;
		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
1849		2393
1850	(async {	2394	(async {
1851	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
1852	unless (eval {	2396	unless (eval {
1853	prepare_random_map $exit	2397	$self->goto ($slaying, $hp, $sp);
1854	if $exit->slaying eq "/!";
1855
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858		2398
1859	1;	2399	1;
1860	}) {	2400	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2401	$self->message ("Something went wrong deep within the crossfire server. "
1862	. "I'll try to bring you back to the map you were before. "	2402	. "I'll try to bring you back to the map you were before. "
1863	. "Please report this to the dungeon master!",	2403	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2404	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2405
1866	warn "ERROR in enter_exit: $@";	2406	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2407	$self->leave_link;
1868	}	2408	}
1869	})->prio (1);	2409	})->prio (1);
…		…
1882		2422
1883	sub cf::client::send_drawinfo {	2423	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2424	my ($self, $text, $flags) = @_;
1885		2425
1886	utf8::encode $text;	2426	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2428	}
1889		2429
		2430	=item $client->send_msg ($color, $type, $msg, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $color, $type, $msg, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	if ($self->can_msg) {
		2447	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2448	} else {
		2449	# replace some tags by gcfclient-compatible ones
		2450	for ($msg) {
		2451	1 while
		2452	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2453	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2454	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2455	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2456	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2457	}
		2458
		2459	if ($color >= 0) {
		2460	if (0 && $msg =~ /\[/) {
		2461	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2462	} else {
		2463	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2464	$self->send_packet ("drawinfo $color $msg")
		2465	}
		2466	}
		2467	}
		2468	}
		2469
		2470	=item $client->ext_event ($type, %msg)
		2471
		2472	Sends an ext event to the client.
		2473
		2474	=cut
		2475
		2476	sub cf::client::ext_event($$%) {
		2477	my ($self, $type, %msg) = @_;
		2478
		2479	return unless $self->extcmd;
		2480
		2481	$msg{msgtype} = "event_$type";
		2482	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2483	}
1890		2484
1891	=item $success = $client->query ($flags, "text", \&cb)	2485	=item $success = $client->query ($flags, "text", \&cb)
1892		2486
1893	Queues a query to the client, calling the given callback with	2487	Queues a query to the client, calling the given callback with
1894	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2488	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1895	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2489	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1896		2490
1897	Queries can fail, so check the return code. Or don't, as queries will become	2491	Queries can fail, so check the return code. Or don't, as queries will
1898	reliable at some point in the future.	2492	become reliable at some point in the future.
1899		2493
1900	=cut	2494	=cut
1901		2495
1902	sub cf::client::query {	2496	sub cf::client::query {
1903	my ($self, $flags, $text, $cb) = @_;	2497	my ($self, $flags, $text, $cb) = @_;
…		…
1911	utf8::encode $text;	2505	utf8::encode $text;
1912	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2506	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1913		2507
1914	$self->send_packet ($self->{query_queue}[0][0])	2508	$self->send_packet ($self->{query_queue}[0][0])
1915	if @{ $self->{query_queue} } == 1;	2509	if @{ $self->{query_queue} } == 1;
		2510
		2511	1
1916	}	2512	}
1917		2513
1918	cf::client->attach (	2514	cf::client->attach (
		2515	on_connect => sub {
		2516	my ($ns) = @_;
		2517
		2518	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2519	},
1919	on_reply => sub {	2520	on_reply => sub {
1920	my ($ns, $msg) = @_;	2521	my ($ns, $msg) = @_;
1921		2522
1922	# this weird shuffling is so that direct followup queries	2523	# this weird shuffling is so that direct followup queries
1923	# get handled first	2524	# get handled first
1924	my $queue = delete $ns->{query_queue}	2525	my $queue = delete $ns->{query_queue}
1925	or return; # be conservative, not sure how that can happen, but we saw a crash here	2526	or return; # be conservative, not sure how that can happen, but we saw a crash here
1926		2527
1927	(shift @$queue)->[1]->($msg);	2528	(shift @$queue)->[1]->($msg);
		2529	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		2530
1929	push @{ $ns->{query_queue} }, @$queue;	2531	push @{ $ns->{query_queue} }, @$queue;
1930		2532
1931	if (@{ $ns->{query_queue} } == @$queue) {	2533	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	2534	if (@$queue) {
…		…
1934	} else {	2536	} else {
1935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2537	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1936	}	2538	}
1937	}	2539	}
1938	},	2540	},
		2541	on_exticmd => sub {
		2542	my ($ns, $buf) = @_;
		2543
		2544	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2545
		2546	if (ref $msg) {
		2547	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2548	if (my %reply = $cb->($ns, $msg)) {
		2549	$reply{msgid} = $msg->{msgid};
		2550	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2551	}
		2552	}
		2553	} else {
		2554	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2555	}
		2556
		2557	cf::override;
		2558	},
1939	);	2559	);
1940		2560
1941	=item $client->async (\&cb)	2561	=item $client->async (\&cb)
1942		2562
1943	Create a new coroutine, running the specified callback. The coroutine will	2563	Create a new coroutine, running the specified callback. The coroutine will
…		…
1990		2610
1991	# here we export the classes and methods available to script code	2611	# here we export the classes and methods available to script code
1992		2612
1993	=pod	2613	=pod
1994		2614
1995	The following fucntions and emthods are available within a safe environment:	2615	The following functions and methods are available within a safe environment:
1996		2616
1997	cf::object contr pay_amount pay_player map	2617	cf::object
		2618	contr pay_amount pay_player map x y force_find force_add
		2619	insert remove
		2620
1998	cf::object::player player	2621	cf::object::player
1999	cf::player peaceful	2622	player
2000	cf::map trigger	2623
		2624	cf::player
		2625	peaceful
		2626
		2627	cf::map
		2628	trigger
2001		2629
2002	=cut	2630	=cut
2003		2631
2004	for (	2632	for (
2005	["cf::object" => qw(contr pay_amount pay_player map)],	2633	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2634	insert remove)],
2006	["cf::object::player" => qw(player)],	2635	["cf::object::player" => qw(player)],
2007	["cf::player" => qw(peaceful)],	2636	["cf::player" => qw(peaceful)],
2008	["cf::map" => qw(trigger)],	2637	["cf::map" => qw(trigger)],
2009	) {	2638	) {
2010	no strict 'refs';	2639	no strict 'refs';
…		…
2081	=back	2710	=back
2082		2711
2083	=cut	2712	=cut
2084		2713
2085	#############################################################################	2714	#############################################################################
		2715	# the server's init and main functions
2086		2716
2087	=head2 EXTENSION DATABASE SUPPORT	2717	sub load_facedata($) {
		2718	my ($path) = @_;
2088		2719
2089	Crossfire maintains a very simple database for extension use. It can	2720	warn "loading facedata from $path\n";
2090	currently store anything that can be serialised using Storable, which
2091	excludes objects.
2092		2721
2093	The parameter C<$family> should best start with the name of the extension	2722	my $facedata;
2094	using it, it should be unique.	2723	0 < aio_load $path, $facedata
		2724	or die "$path: $!";
2095		2725
2096	=over 4	2726	$facedata = Coro::Storable::thaw $facedata;
2097		2727
2098	=item $hashref = cf::db_get $family	2728	$facedata->{version} == 2
		2729	or cf::cleanup "$path: version mismatch, cannot proceed.";
2099		2730
2100	Return a hashref for use by the extension C<$family>, which can be
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103
2104	=item $value = cf::db_get $family => $key
2105
2106	Returns a single value from the database
2107
2108	=item cf::db_put $family => $hashref
2109
2110	Stores the given family hashref into the database. Updates are delayed, if
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112
2113	=item cf::db_put $family => $key => $value
2114
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125
2126	=cut
2127
2128	our $DB;
2129
2130	{
2131	my $path = cf::localdir . "/database.pst";
2132
2133	sub db_load() {
2134	$DB = stat $path ? Storable::retrieve $path : { };
2135	}	2731	{
		2732	my $faces = $facedata->{faceinfo};
2136		2733
2137	my $pid;	2734	while (my ($face, $info) = each %$faces) {
		2735	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2736	cf::face::set_visibility $idx, $info->{visibility};
		2737	cf::face::set_magicmap $idx, $info->{magicmap};
		2738	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2739	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2138		2740
2139	sub db_save() {	2741	cf::cede_to_tick;
2140	waitpid $pid, 0 if $pid;
2141	if (0 == ($pid = fork)) {
2142	$DB->{_meta}{version} = 1;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});
2159
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}
2164
2165	sub db_get($;$) {
2166	@_ >= 2
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170
2171	sub db_put($$;$) {
2172	if (@_ >= 3) {
2173	$DB->{$_[0]}{$_[1]} = $_[2];
2174	} else {
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179
2180	cf::global->attach (
2181	prio => 10000,
2182	on_cleanup => sub {
2183	db_sync;
2184	},	2742	}
2185	);
2186	}
2187		2743
2188	#############################################################################	2744	while (my ($face, $info) = each %$faces) {
2189	# the server's main()	2745	next unless $info->{smooth};
		2746	my $idx = cf::face::find $face
		2747	or next;
		2748	if (my $smooth = cf::face::find $info->{smooth}) {
		2749	cf::face::set_smooth $idx, $smooth;
		2750	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2751	} else {
		2752	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2753	}
		2754
		2755	cf::cede_to_tick;
		2756	}
		2757	}
		2758
		2759	{
		2760	my $anims = $facedata->{animinfo};
		2761
		2762	while (my ($anim, $info) = each %$anims) {
		2763	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2764	cf::cede_to_tick;
		2765	}
		2766
		2767	cf::anim::invalidate_all; # d'oh
		2768	}
		2769
		2770	{
		2771	# TODO: for gcfclient pleasure, we should give resources
		2772	# that gcfclient doesn't grok a >10000 face index.
		2773	my $res = $facedata->{resource};
		2774	my $enc = JSON::XS->new->utf8->canonical;
		2775
		2776	while (my ($name, $info) = each %$res) {
		2777	my $meta = $enc->encode ({
		2778	name => $name,
		2779	type => $info->{type},
		2780	copyright => $info->{copyright}, #TODO#
		2781	});
		2782
		2783	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2784
		2785	if ($name =~ /\.jpg$/) {
		2786	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2787	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2788	} else {
		2789	my $data = pack "(w/a*)*", $meta, $info->{data};
		2790	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2791
		2792	cf::face::set_type $idx, 1;
		2793	cf::face::set_data $idx, 0, $data, $chk;
		2794	}
		2795
		2796	cf::cede_to_tick;
		2797	}
		2798	}
		2799
		2800	1
		2801	}
		2802
		2803	sub reload_regions {
		2804	load_resource_file "$MAPDIR/regions"
		2805	or die "unable to load regions file\n";
		2806
		2807	for (cf::region::list) {
		2808	$_->{match} = qr/$_->{match}/
		2809	if exists $_->{match};
		2810	}
		2811	}
		2812
		2813	sub reload_facedata {
		2814	load_facedata "$DATADIR/facedata"
		2815	or die "unable to load facedata\n";
		2816	}
		2817
		2818	sub reload_archetypes {
		2819	load_resource_file "$DATADIR/archetypes"
		2820	or die "unable to load archetypes\n";
		2821	#d# NEED to laod twice to resolve forward references
		2822	# this really needs to be done in an extra post-pass
		2823	# (which needs to be synchronous, so solve it differently)
		2824	load_resource_file "$DATADIR/archetypes"
		2825	or die "unable to load archetypes\n";
		2826	}
		2827
		2828	sub reload_treasures {
		2829	load_resource_file "$DATADIR/treasures"
		2830	or die "unable to load treasurelists\n";
		2831	}
		2832
		2833	sub reload_resources {
		2834	warn "reloading resource files...\n";
		2835
		2836	reload_regions;
		2837	reload_facedata;
		2838	#reload_archetypes;#d#
		2839	reload_archetypes;
		2840	reload_treasures;
		2841
		2842	warn "finished reloading resource files\n";
		2843	}
		2844
		2845	sub init {
		2846	reload_resources;
		2847	}
2190		2848
2191	sub cfg_load {	2849	sub cfg_load {
2192	open my $fh, "<:utf8", cf::confdir . "/config"	2850	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	2851	or return;
2194		2852
2195	local $/;	2853	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	2854	*CFG = YAML::Syck::Load <$fh>;
2197		2855
…		…
2211		2869
2212	sub main {	2870	sub main {
2213	# we must not ever block the main coroutine	2871	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	2872	local $Coro::idle = sub {
2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2873	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2874	(async {
2216	async { Event::one_event };	2875	Event::one_event;
		2876	})->prio (Coro::PRIO_MAX);
2217	};	2877	};
2218		2878
2219	cfg_load;	2879	cfg_load;
2220	db_load;	2880	db_init;
2221	load_extensions;	2881	load_extensions;
		2882
		2883	$TICK_WATCHER->start;
2222	Event::loop;	2884	Event::loop;
2223	}	2885	}
2224		2886
2225	#############################################################################	2887	#############################################################################
2226	# initialisation and cleanup	2888	# initialisation and cleanup
2227		2889
2228	# install some emergency cleanup handlers	2890	# install some emergency cleanup handlers
2229	BEGIN {	2891	BEGIN {
2230	for my $signal (qw(INT HUP TERM)) {	2892	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	2893	Event->signal (
		2894	reentrant => 0,
2232	data => WF_AUTOCANCEL,	2895	data => WF_AUTOCANCEL,
2233	signal => $signal,	2896	signal => $signal,
		2897	prio => 0,
2234	cb => sub {	2898	cb => sub {
2235	cf::cleanup "SIG$signal";	2899	cf::cleanup "SIG$signal";
2236	},	2900	},
2237	);	2901	);
2238	}	2902	}
		2903	}
		2904
		2905	sub write_runtime {
		2906	my $runtime = "$LOCALDIR/runtime";
		2907
		2908	# first touch the runtime file to show we are still running:
		2909	# the fsync below can take a very very long time.
		2910
		2911	IO::AIO::aio_utime $runtime, undef, undef;
		2912
		2913	my $guard = cf::lock_acquire "write_runtime";
		2914
		2915	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2916	or return;
		2917
		2918	my $value = $cf::RUNTIME + 90 + 10;
		2919	# 10 is the runtime save interval, for a monotonic clock
		2920	# 60 allows for the watchdog to kill the server.
		2921
		2922	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2923	and return;
		2924
		2925	# always fsync - this file is important
		2926	aio_fsync $fh
		2927	and return;
		2928
		2929	# touch it again to show we are up-to-date
		2930	aio_utime $fh, undef, undef;
		2931
		2932	close $fh
		2933	or return;
		2934
		2935	aio_rename "$runtime~", $runtime
		2936	and return;
		2937
		2938	warn "runtime file written.\n";
		2939
		2940	1
2239	}	2941	}
2240		2942
2241	sub emergency_save() {	2943	sub emergency_save() {
2242	my $freeze_guard = cf::freeze_mainloop;	2944	my $freeze_guard = cf::freeze_mainloop;
2243		2945
…		…
2260	my $map = $cf::MAP{$path} or next;	2962	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	2963	$map->valid or next;
2262	$map->save;	2964	$map->save;
2263	}	2965	}
2264	warn "end emergency map save\n";	2966	warn "end emergency map save\n";
		2967
		2968	warn "begin emergency database checkpoint\n";
		2969	BDB::db_env_txn_checkpoint $DB_ENV;
		2970	warn "end emergency database checkpoint\n";
2265	};	2971	};
2266		2972
2267	warn "leave emergency perl save\n";	2973	warn "leave emergency perl save\n";
2268	}	2974	}
2269		2975
		2976	sub post_cleanup {
		2977	my ($make_core) = @_;
		2978
		2979	warn Carp::longmess "post_cleanup backtrace"
		2980	if $make_core;
		2981	}
		2982
2270	sub reload() {	2983	sub do_reload_perl() {
2271	# can/must only be called in main	2984	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	2985	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	2986	warn "can only reload from main coroutine";
2274	return;	2987	return;
2275	}	2988	}
2276		2989
2277	warn "reloading...";	2990	warn "reloading...";
2278		2991
2279	warn "freezing server";	2992	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	2993
		2994	cf::sync_job {
		2995	cf::write_runtime; # external watchdog should not bark
2281	cf::emergency_save;	2996	cf::emergency_save;
		2997	cf::write_runtime; # external watchdog should not bark
2282		2998
2283	warn "sync database to disk";	2999	warn "syncing database to disk";
2284	cf::db_sync;	3000	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		3001
2287	eval {
2288	# if anything goes wrong in here, we should simply crash as we already saved	3002	# if anything goes wrong in here, we should simply crash as we already saved
2289		3003
2290	warn "cancel all watchers";	3004	warn "cancelling all WF_AUTOCANCEL watchers";
2291	for (Event::all_watchers) {	3005	for (Event::all_watchers) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	3006	$_->cancel if $_->data & WF_AUTOCANCEL;
2293	}	3007	}
2294		3008
		3009	warn "flushing outstanding aio requests";
		3010	for (;;) {
		3011	BDB::flush;
		3012	IO::AIO::flush;
		3013	Coro::cede;
		3014	last unless IO::AIO::nreqs || BDB::nreqs;
		3015	warn "iterate...";
		3016	}
		3017
		3018	++$RELOAD;
		3019
2295	warn "cancel all extension coros";	3020	warn "cancelling all extension coros";
2296	$_->cancel for values %EXT_CORO;	3021	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();	3022	%EXT_CORO = ();
2298		3023
2299	warn "remove commands";	3024	warn "removing commands";
2300	%COMMAND = ();	3025	%COMMAND = ();
2301		3026
2302	warn "remove ext commands";	3027	warn "removing ext/exti commands";
2303	%EXTCMD = ();	3028	%EXTCMD = ();
		3029	%EXTICMD = ();
2304		3030
2305	warn "unload/nuke all extensions";	3031	warn "unloading/nuking all extensions";
2306	for my $pkg (@EXTS) {	3032	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";	3033	warn "... unloading $pkg";
2308		3034
2309	if (my $cb = $pkg->can ("unload")) {	3035	if (my $cb = $pkg->can ("unload")) {
2310	eval {	3036	eval {
…		…
2315		3041
2316	warn "... nuking $pkg";	3042	warn "... nuking $pkg";
2317	Symbol::delete_package $pkg;	3043	Symbol::delete_package $pkg;
2318	}	3044	}
2319		3045
2320	warn "unload all perl modules loaded from $LIBDIR";	3046	warn "unloading all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {	3047	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3048	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323		3049
2324	warn "removing <$k>";	3050	warn "... unloading $k";
2325	delete $INC{$k};	3051	delete $INC{$k};
2326		3052
2327	$k =~ s/\.pm$//;	3053	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;	3054	$k =~ s/\//::/g;
2329		3055
…		…
2332	}	3058	}
2333		3059
2334	Symbol::delete_package $k;	3060	Symbol::delete_package $k;
2335	}	3061	}
2336		3062
2337	warn "get rid of safe::, as good as possible";	3063	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	3064	Symbol::delete_package "safe::$_"
2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2340		3066
2341	warn "unload cf.pm \"a bit\"";	3067	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	3068	delete $INC{"cf.pm"};
		3069	delete $INC{"cf/pod.pm"};
2343		3070
2344	# don't, removes xs symbols, too,	3071	# don't, removes xs symbols, too,
2345	# and global variables created in xs	3072	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	3073	#Symbol::delete_package __PACKAGE__;
2347		3074
		3075	warn "unload completed, starting to reload now";
		3076
2348	warn "reloading cf.pm";	3077	warn "reloading cf.pm";
2349	require cf;	3078	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351		3080
2352	warn "load config and database again";	3081	warn "loading config and database again";
2353	cf::cfg_load;	3082	cf::cfg_load;
2354	cf::db_load;
2355		3083
2356	warn "load extensions";	3084	warn "loading extensions";
2357	cf::load_extensions;	3085	cf::load_extensions;
2358		3086
2359	warn "reattach attachments to objects/players";	3087	warn "reattaching attachments to objects/players";
2360	_global_reattach;	3088	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	3089	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	3090	reattach $_ for values %MAP;
2363	};	3091	warn "reattaching attachments to players";
		3092	reattach $_ for values %PLAYER;
2364		3093
2365	if ($@) {	3094	warn "leaving sync_job";
		3095
		3096	1
		3097	} or do {
2366	warn $@;	3098	warn $@;
2367	warn "error while reloading, exiting.";	3099	warn "error while reloading, exiting.";
2368	exit 1;	3100	exit 1;
2369	}	3101	};
2370		3102
2371	warn "reloaded";	3103	warn "reloaded";
2372	};	3104	};
2373		3105
		3106	our $RELOAD_WATCHER; # used only during reload
		3107
		3108	sub reload_perl() {
		3109	# doing reload synchronously and two reloads happen back-to-back,
		3110	# coro crashes during coro_state_free->destroy here.
		3111
		3112	$RELOAD_WATCHER ||= Event->timer (
		3113	reentrant => 0,
		3114	after => 0,
		3115	data => WF_AUTOCANCEL,
		3116	cb => sub {
		3117	do_reload_perl;
		3118	undef $RELOAD_WATCHER;
		3119	},
		3120	);
		3121	}
		3122
2374	register_command "reload" => sub {	3123	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	3124	my ($who, $arg) = @_;
2376		3125
2377	if ($who->flag (FLAG_WIZ)) {	3126	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	3127	$who->message ("reloading server.");
		3128	async { reload_perl };
2381	}	3129	}
2382	};	3130	};
2383		3131
2384	unshift @INC, $LIBDIR;	3132	unshift @INC, $LIBDIR;
2385		3133
		3134	my $bug_warning = 0;
		3135
		3136	our @WAIT_FOR_TICK;
		3137	our @WAIT_FOR_TICK_BEGIN;
		3138
		3139	sub wait_for_tick {
		3140	return unless $TICK_WATCHER->is_active;
		3141	return if $Coro::current == $Coro::main;
		3142
		3143	my $signal = new Coro::Signal;
		3144	push @WAIT_FOR_TICK, $signal;
		3145	$signal->wait;
		3146	}
		3147
		3148	sub wait_for_tick_begin {
		3149	return unless $TICK_WATCHER->is_active;
		3150	return if $Coro::current == $Coro::main;
		3151
		3152	my $signal = new Coro::Signal;
		3153	push @WAIT_FOR_TICK_BEGIN, $signal;
		3154	$signal->wait;
		3155	}
		3156
		3157	my $min = 1e6;#d#
		3158	my $avg = 10;
2386	$TICK_WATCHER = Event->timer (	3159	$TICK_WATCHER = Event->timer (
2387	reentrant => 0,	3160	reentrant => 0,
		3161	parked => 1,
2388	prio => 0,	3162	prio => 0,
2389	at => $NEXT_TICK || $TICK,	3163	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,	3164	data => WF_AUTOCANCEL,
2391	cb => sub {	3165	cb => sub {
		3166	if ($Coro::current != $Coro::main) {
		3167	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3168	unless ++$bug_warning > 10;
		3169	return;
		3170	}
		3171
2392	$NOW = Event::time;	3172	$NOW = $tick_start = Event::time;
2393		3173
2394	cf::server_tick; # one server iteration	3174	cf::server_tick; # one server iteration
		3175
		3176	0 && sync_job {#d#
		3177	for(1..10) {
		3178	my $t = Event::time;
		3179	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3180	or die;
		3181
		3182	$map->width (50);
		3183	$map->height (50);
		3184	$map->alloc;
		3185	$map->_load_objects ("/tmp/x.map", 1);
		3186	my $t = Event::time - $t;
		3187
		3188	#next unless $t < 0.0013;#d#
		3189	if ($t < $min) {
		3190	$min = $t;
		3191	}
		3192	$avg = $avg * 0.99 + $t * 0.01;
		3193	}
		3194	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3195	exit 0;
		3196	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3197	};
		3198
2395	$RUNTIME += $TICK;	3199	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;	3200	$NEXT_TICK += $TICK;
2397		3201
2398	$WAIT_FOR_TICK->broadcast;	3202	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3203	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3204	Coro::async_pool {
		3205	write_runtime
		3206	or warn "ERROR: unable to write runtime file: $!";
		3207	};
		3208	}
		3209
		3210	# my $AFTER = Event::time;
		3211	# warn $AFTER - $NOW;#d#
		3212
		3213	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3214	$sig->send;
		3215	}
		3216	while (my $sig = shift @WAIT_FOR_TICK) {
		3217	$sig->send;
		3218	}
		3219
		3220	$NOW = Event::time;
2400		3221
2401	# if we are delayed by four ticks or more, skip them all	3222	# if we are delayed by four ticks or more, skip them all
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3223	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2403		3224
2404	$TICK_WATCHER->at ($NEXT_TICK);	3225	$TICK_WATCHER->at ($NEXT_TICK);
2405	$TICK_WATCHER->start;	3226	$TICK_WATCHER->start;
		3227
		3228	$LOAD = ($NOW - $tick_start) / $TICK;
		3229	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3230
		3231	_post_tick;
		3232
		3233
2406	},	3234	},
2407	);	3235	);
2408		3236
		3237	{
		3238	BDB::max_poll_time $TICK * 0.1;
		3239	$BDB_POLL_WATCHER = Event->io (
		3240	reentrant => 0,
		3241	fd => BDB::poll_fileno,
		3242	poll => 'r',
		3243	prio => 0,
		3244	data => WF_AUTOCANCEL,
		3245	cb => \&BDB::poll_cb,
		3246	);
		3247	BDB::min_parallel 8;
		3248
		3249	BDB::set_sync_prepare {
		3250	my $status;
		3251	my $current = $Coro::current;
		3252	(
		3253	sub {
		3254	$status = $!;
		3255	$current->ready; undef $current;
		3256	},
		3257	sub {
		3258	Coro::schedule while defined $current;
		3259	$! = $status;
		3260	},
		3261	)
		3262	};
		3263
		3264	unless ($DB_ENV) {
		3265	$DB_ENV = BDB::db_env_create;
		3266
		3267	cf::sync_job {
		3268	eval {
		3269	BDB::db_env_open
		3270	$DB_ENV,
		3271	$BDBDIR,
		3272	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3273	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3274	0666;
		3275
		3276	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3277
		3278	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3279	$DB_ENV->set_lk_detect;
		3280	};
		3281
		3282	cf::cleanup "db_env_open(db): $@" if $@;
		3283	};
		3284	}
		3285	}
		3286
		3287	{
		3288	IO::AIO::min_parallel 8;
		3289
		3290	undef $Coro::AIO::WATCHER;
2409	IO::AIO::max_poll_time $TICK * 0.2;	3291	IO::AIO::max_poll_time $TICK * 0.1;
2410
2411	$AIO_POLL_WATCHER = Event->io (	3292	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,	3293	reentrant => 0,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,	3294	data => WF_AUTOCANCEL,
2421	after => 0,	3295	fd => IO::AIO::poll_fileno,
2422	interval => 10,	3296	poll => 'r',
2423	cb => sub {	3297	prio => 6,
2424	(Coro::unblock_sub {	3298	cb => \&IO::AIO::poll_cb,
2425	write_runtime	3299	);
2426	or warn "ERROR: unable to write runtime file: $!";	3300	}
		3301
		3302	my $_log_backtrace;
		3303
		3304	sub _log_backtrace {
		3305	my ($msg, @addr) = @_;
		3306
		3307	$msg =~ s/\n//;
		3308
		3309	# limit the # of concurrent backtraces
		3310	if ($_log_backtrace < 2) {
		3311	++$_log_backtrace;
		3312	async {
		3313	my @bt = fork_call {
		3314	@addr = map { sprintf "%x", $_ } @addr;
		3315	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3316	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3317	or die "addr2line: $!";
		3318
		3319	my @funcs;
		3320	my @res = <$fh>;
		3321	chomp for @res;
		3322	while (@res) {
		3323	my ($func, $line) = splice @res, 0, 2, ();
		3324	push @funcs, "[$func] $line";
		3325	}
		3326
		3327	@funcs
		3328	};
		3329
		3330	LOG llevInfo, "[ABT] $msg\n";
		3331	LOG llevInfo, "[ABT] $_\n" for @bt;
		3332	--$_log_backtrace;
2427	})->();	3333	};
		3334	} else {
		3335	LOG llevInfo, "[ABT] $msg\n";
		3336	LOG llevInfo, "[ABT] [suppressed]\n";
2428	},	3337	}
2429	);	3338	}
		3339
		3340	# load additional modules
		3341	use cf::pod;
2430		3342
2431	END { cf::emergency_save }	3343	END { cf::emergency_save }
2432		3344
2433	1	3345	1
2434		3346

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