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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.273 by root, Mon Jun 4 12:19:08 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 BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$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		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	76	our $NEXT_TICK;
50	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
51		82
52	our %CFG;	83	our %CFG;
53		84
54	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	86	our $RUNTIME;
56		87
57	our %PLAYER; # all users	88	our %PLAYER; # all users
58	our %MAP; # all maps	89	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		91
65	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
68	binmode STDOUT;	99	binmode STDOUT;
69	binmode STDERR;	100	binmode STDERR;
70		101
71	# read virtual server time, if available	102	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
74	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
75	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
76	}	107	}
77		108
78	mkdir cf::localdir;	109	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		111
84	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
85		115
86	#############################################################################	116	#############################################################################
87		117
88	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
89		119
…		…
96	=item $cf::RUNTIME	126	=item $cf::RUNTIME
97		127
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	129	every server tick.
100		130
101	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		134
103	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
105		139
106	=item $cf::NOW	140	=item $cf::NOW
107		141
108	The time of the last (current) server tick.	142	The time of the last (current) server tick.
109		143
110	=item $cf::TICK	144	=item $cf::TICK
111		145
112	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
113		157
114	=item %cf::CFG	158	=item %cf::CFG
115		159
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
117	from wherever your confdir points to.	161	from wherever your confdir points to.
118		162
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		164
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.
125		168
126	=back	169	=back
127		170
128	=cut	171	=cut
129		172
130	BEGIN {	173	BEGIN {
131	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	175	my $msg = join "", @_;
133	utf8::encode $msg;
134		176
135	$msg .= "\n"	177	$msg .= "\n"
136	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
137		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
138	LOG llevError, $msg;	183	LOG llevError, $msg;
139	};	184	};
140	}	185	}
141		186
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		194
149	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	196	# within the Safe compartment.
151	for my $pkg (qw(	197	for my $pkg (qw(
152	cf::global cf::attachable	198	cf::global cf::attachable
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	235	$d
190	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
191	}	237	}
192		238
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
194		240
195	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
196		242
197	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
198		244
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
207		246
208	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		248
217	=item cf::lock_wait $string	249	=item cf::lock_wait $string
218		250
219	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
220		252
…		…
226	returned.	258	returned.
227		259
228	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
230		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
231	=cut	267	=cut
232		268
233	our %LOCK;	269	our %LOCK;
234		270
235	sub lock_wait($) {	271	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
256	}	292	}
257	}	293	}
258		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
259	sub freeze_mainloop {	301	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
261		303
262	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
263	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
264	$guard	308	$guard
265	}	309	}
266		310
267	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
289		333
290	sub sync_job(&) {	334	sub sync_job(&) {
291	my ($job) = @_;	335	my ($job) = @_;
292		336
293	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
294	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
296		342
297	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
309		355
310	while ($busy) {	356	while ($busy) {
311	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
312	}	358	}
313		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
314	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
315	} else {	368	} else {
316	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
317		370
318	$job->()	371	$job->()
…		…
338		391
339	$coro	392	$coro
340	}	393	}
341		394
342	sub write_runtime {	395	sub write_runtime {
343	return unless $TICK_WATCHER->is_active;	396	my $runtime = "$LOCALDIR/runtime";
344		397
345	my $runtime = cf::localdir . "/runtime";	398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
346		404
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348	or return;	406	or return;
349		407
		408	my $value = $cf::RUNTIME + 90 + 10;
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
352	and return;	413	and return;
353		414
		415	# always fsync - this file is important
354	aio_fsync $fh	416	aio_fsync $fh
355	and return;	417	and return;
356		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
357	close $fh	422	close $fh
358	or return;	423	or return;
359		424
360	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
361	and return;	426	and return;
362		427
		428	warn "runtime file written.\n";#d#
		429
363	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	442	}
365		443
366	=back	444	=back
367		445
368	=cut	446	=cut
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	578	our @CB_MAP = ();
501		579
502	my %attachment;	580	my %attachment;
503		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
504	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
506		590
507	use sort 'stable';	591	use sort 'stable';
508		592
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
543		627
544	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		632
549	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	634	my $pkg = shift @arg;
551		635
552	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
593	if (ref $_[0]) {	677	if (ref $_[0]) {
594	_object_attach @_;	678	_object_attach @_;
595	} else {	679	} else {
596	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
597	}	681	}
		682	_recalc_want;
598	};	683	};
599		684
600	# all those should be optimised	685	# all those should be optimised
601	sub cf::attachable::detach {	686	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
606	reattach ($obj);	691	reattach ($obj);
607	} else {	692	} else {
608	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
609	}	694	}
		695	_recalc_want;
610	};	696	};
611		697
612	sub cf::attachable::attached {	698	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
614		700
…		…
679	# object support	765	# object support
680		766
681	sub reattach {	767	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		772
685	my $registry = $obj->registry;	773	my $registry = $obj->registry;
686		774
687	@$registry = ();	775	@$registry = ();
688		776
…		…
735	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
736		824
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	829	close $fh;
742		830
743	if (@$objs) {	831	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	837	close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
751	}	839	}
752	} else {	840	} else {
753	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
900	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
901	}	989	}
902	}	990	}
903		991
904	#############################################################################	992	#############################################################################
905	# load/save/clean perl data associated with a map
906
907	*cf::mapsupport::on_clean = sub {
908	my ($map) = @_;
909
910	my $path = $map->tmpname;
911	defined $path or return;
912
913	unlink "$path.pst";
914	};
915
916	cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918	#############################################################################
919		993
920	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
921		995
922	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
923		997
…		…
936	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
937		1011
938	=cut	1012	=cut
939		1013
940	sub playerdir($) {	1014	sub playerdir($) {
941	cf::localdir	1015	"$PLAYERDIR/"
942	. "/"
943	. cf::playerdir
944	. "/"
945	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
946	}	1017	}
947		1018
948	sub path($) {	1019	sub path($) {
949	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
950		1021
951	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
952	}	1023	}
953		1024
954	sub find_active($) {	1025	sub find_active($) {
955	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
956	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
959		1030
960	sub exists($) {	1031	sub exists($) {
961	my ($login) = @_;	1032	my ($login) = @_;
962		1033
963	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
964	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
965	}	1036	}
966		1037
967	sub find($) {	1038	sub find($) {
968	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
969	my $login = $_[0];	1040	my $login = $_[0];
970		1041
971	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
972		1043
973	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
974	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
975	or return;	1053	or return;
976	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
977	}	1055	}
978	}	1056	}
…		…
1015		1093
1016	=cut	1094	=cut
1017		1095
1018	sub quit_character {	1096	sub quit_character {
1019	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1020		1100
1021	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1022	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1023		1103
1024	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1029	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1030	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1031	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1032	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1033	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1034	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
1035	}	1135	}
1036		1136
1037	=item cf::player::list_logins	1137	=item cf::player::list_logins
1038		1138
1039	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1040	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1041		1141
1042	=cut	1142	=cut
1043		1143
1044	sub list_logins {	1144	sub list_logins {
1045	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1046	or return [];	1146	or return [];
1047		1147
1048	my @logins;	1148	my @logins;
1049		1149
1050	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1067	=cut	1167	=cut
1068		1168
1069	sub maps($) {	1169	sub maps($) {
1070	my ($pl) = @_;	1170	my ($pl) = @_;
1071		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
1072	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1073	or return;	1175	or return;
1074		1176
1075	my @paths;	1177	my @paths;
1076		1178
1077	for (@$files) {	1179	for (@$files) {
1078	utf8::decode $_;	1180	utf8::decode $_;
1079	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1080	next unless /^$PATH_SEP/o;	1182	next unless /^$PATH_SEP/o;
1081		1183
1082	push @paths, "~" . $pl->ob->name . "/" . $_;	1184	push @paths, cf::map::normalise "~$pl/$_";
1083	}	1185	}
1084		1186
1085	\@paths	1187	\@paths
1086	}	1188	}
1087		1189
1088	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1089		1191
1090	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1091		1193
1092	=cut	1194	=cut
1093		1195
1094	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1095	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1096		1198
1097	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1098		1200
1099	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1100	}	1202	}
1101		1203
1102	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1103		1244
1104	=back	1245	=back
1105
1106		1246
1107	=head3 cf::map	1247	=head3 cf::map
1108		1248
1109	=over 4	1249	=over 4
1110		1250
…		…
1114		1254
1115	use Fcntl;	1255	use Fcntl;
1116	use Coro::AIO;	1256	use Coro::AIO;
1117		1257
1118	use overload	1258	use overload
1119	'""' => \&as_string;	1259	'""' => \&as_string,
		1260	fallback => 1;
1120		1261
1121	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1123		1264
1124	sub generate_random_map {	1265	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1126
1127	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1268	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1280	)
1141	}	1281	}
1142		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
1143	sub register {	1291	sub register {
1144	my (undef, $regex) = @_;	1292	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1293	my $pkg = caller;
1146		1294
1147	no strict;	1295	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1296	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1297
1150	$EXT_MAP{$pkg} = qr<$regex>;	1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1299	}
1152		1300
1153	# also paths starting with '/'	1301	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
1155		1315
1156	sub normalise {	1316	sub normalise {
1157	my ($path, $base) = @_;	1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
1158		1322
1159	# map plan:	1323	# map plan:
1160	#	1324	#
1161	# /! non-realised random map exit (special hack!)	1325	# /! non-realised random map exit (special hack!)
1162	# {... are special paths that are not being touched	1326	# {... are special paths that are not being touched
…		…
1190		1354
1191	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192		1356
1193	$path = normalise $path, $base;	1357	$path = normalise $path, $base;
1194		1358
1195	for my $pkg (keys %EXT_MAP) {	1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196	if ($path =~ $EXT_MAP{$pkg}) {	1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
1197	my $self = bless cf::map::new, $pkg;	1361	my $self = bless cf::map::new, $pkg;
1198	$self->{path} = $path; $self->path ($path);	1362	$self->{path} = $path; $self->path ($path);
1199	$self->init; # pass $1 etc.	1363	$self->init; # pass $1 etc.
1200	return $self;	1364	return $self;
1201	}	1365	}
1202	}	1366	}
1203		1367
1204	Carp::carp "unable to resolve path '$path'.";	1368	Carp::carp "unable to resolve path '$path' (base '$base').";
1205	()	1369	()
1206	}	1370	}
1207		1371
1208	sub init {	1372	sub init {
1209	my ($self) = @_;	1373	my ($self) = @_;
…		…
1220	# the displayed name, this is a one way mapping	1384	# the displayed name, this is a one way mapping
1221	sub visible_name {	1385	sub visible_name {
1222	&as_string	1386	&as_string
1223	}	1387	}
1224		1388
1225	# escape the /'s in the path
1226	sub _escaped_path {
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229	$path
1230	}
1231
1232	# the original (read-only) location	1389	# the original (read-only) location
1233	sub load_path {	1390	sub load_path {
1234	my ($self) = @_;	1391	my ($self) = @_;
1235		1392
1236	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1393	"$MAPDIR/$self->{path}.map"
1237	}	1394	}
1238		1395
1239	# the temporary/swap location	1396	# the temporary/swap location
1240	sub save_path {	1397	sub save_path {
1241	my ($self) = @_;	1398	my ($self) = @_;
1242		1399
1243	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path	1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
1244	}	1402	}
1245		1403
1246	# the unique path, undef == no special unique path	1404	# the unique path, undef == no special unique path
1247	sub uniq_path {	1405	sub uniq_path {
1248	my ($self) = @_;	1406	my ($self) = @_;
1249		1407
1250	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1251	}	1410	}
1252		1411
1253	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1254	# all maps in C++...	1413	# all maps in C++...
1255	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1261		1420
1262	sub unlink_save {	1421	sub unlink_save {
1263	my ($self) = @_;	1422	my ($self) = @_;
1264		1423
1265	utf8::encode (my $save = $self->save_path);	1424	utf8::encode (my $save = $self->save_path);
1266	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1268	}	1427	}
1269		1428
1270	sub load_header_from($) {	1429	sub load_header_from($) {
1271	my ($self, $path) = @_;	1430	my ($self, $path) = @_;
1272		1431
1273	utf8::encode $path;	1432	utf8::encode $path;
1274	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
1275	or return;	1434	# or return;
1276		1435
1277	$self->_load_header ($path)	1436	$self->_load_header ($path)
1278	or return;	1437	or return;
1279		1438
1280	$self->{load_path} = $path;	1439	$self->{load_path} = $path;
1281		1440
1282	1	1441	1
1283	}	1442	}
1284		1443
1285	sub load_orig {	1444	sub load_header_orig {
1286	my ($self) = @_;	1445	my ($self) = @_;
1287		1446
1288	$self->load_header_from ($self->load_path)	1447	$self->load_header_from ($self->load_path)
1289	}	1448	}
1290		1449
1291	sub load_temp {	1450	sub load_header_temp {
1292	my ($self) = @_;	1451	my ($self) = @_;
1293		1452
1294	$self->load_header_from ($self->save_path)	1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
1295	}	1473	}
1296		1474
1297	sub load_header {	1475	sub load_header {
1298	my ($self) = @_;	1476	my ($self) = @_;
1299		1477
1300	if ($self->load_temp) {	1478	if ($self->load_header_temp) {
1301	$self->last_access ((delete $self->{last_access})	1479	$self->prepare_temp;
1302	|| $cf::RUNTIME); #d#
1303	# safety
1304	$self->{instantiate_time} = $cf::RUNTIME
1305	if $self->{instantiate_time} > $cf::RUNTIME;
1306	} else {	1480	} else {
1307	$self->load_orig	1481	$self->load_header_orig
1308	or return;	1482	or return;
1309		1483	$self->prepare_orig;
1310	$self->{load_original} = 1;
1311	$self->{instantiate_time} = $cf::RUNTIME;
1312	$self->last_access ($cf::RUNTIME);
1313	$self->instantiate;
1314	}	1484	}
		1485
		1486	$self->default_region (cf::region::find_by_path $self->{path})
		1487	unless $self->default_region;
1315		1488
1316	1	1489	1
1317	}	1490	}
1318		1491
1319	sub find;	1492	sub find;
…		…
1332	$map->{last_save} = $cf::RUNTIME;	1505	$map->{last_save} = $cf::RUNTIME;
1333		1506
1334	$map->load_header	1507	$map->load_header
1335	or return;	1508	or return;
1336		1509
1337	if ($map->should_reset) {	1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1338	$map->reset;	1513	$map->reset;
1339	undef $guard;	1514	undef $guard;
1340	$map = find $path	1515	return find $path;
1341	or return;
1342	}	1516	}
1343		1517
1344	$cf::MAP{$path} = $map	1518	$cf::MAP{$path} = $map
1345	}	1519	}
1346	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1347		1524
1348	sub load {	1525	sub load {
1349	my ($self) = @_;	1526	my ($self) = @_;
1350		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
1351	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1352	my $guard = cf::lock_acquire "map_load:$path";	1533	my $guard = cf::lock_acquire "map_load:$path";
1353		1534
1354	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1355		1536
1356	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1357		1538
1358	$self->alloc;	1539	$self->alloc;
1359	$self->_load_objects ($self->{load_path}, 1)
1360	or return;
1361		1540
1362	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1541	$self->pre_load;
1363	if delete $self->{load_original};
1364
1365	if (my $uniq = $self->uniq_path) {
1366	utf8::encode $uniq;
1367	if (aio_open $uniq, O_RDONLY, 0) {
1368	$self->clear_unique_items;
1369	$self->_load_objects ($uniq, 0);
1370	}
1371	}
1372
1373	Coro::cede;
1374
1375	# now do the right thing for maps
1376	$self->link_multipart_objects;
1377
1378	unless ($self->{deny_activate}) {
1379	$self->decay_objects;
1380	$self->fix_auto_apply;
1381	$self->update_buttons;
1382	Coro::cede;	1542	Coro::cede;
1383	$self->set_darkness_map;	1543
		1544	$self->_load_objects ($self->{load_path}, 1)
		1545	or return;
		1546
		1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1548	if delete $self->{load_original};
		1549
		1550	if (my $uniq = $self->uniq_path) {
		1551	utf8::encode $uniq;
		1552	if (aio_open $uniq, O_RDONLY, 0) {
		1553	$self->clear_unique_items;
		1554	$self->_load_objects ($uniq, 0);
		1555	}
		1556	}
		1557
		1558	Coro::cede;
		1559	# now do the right thing for maps
		1560	$self->link_multipart_objects;
1384	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1562	unless $self->difficulty;
1386	Coro::cede;	1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1387	$self->activate;	1572	$self->activate;
1388	}	1573	}
1389		1574
1390	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
		1576	}
		1577
		1578	$self->post_load;
1391	}	1579	}
1392		1580
1393	sub customise_for {	1581	sub customise_for {
1394	my ($self, $ob) = @_;	1582	my ($self, $ob) = @_;
1395		1583
…		…
1434		1622
1435	cf::sync_job { $map->load };	1623	cf::sync_job { $map->load };
1436	}	1624	}
1437		1625
1438	our %MAP_PREFETCH;	1626	our %MAP_PREFETCH;
1439	our $MAP_PREFETCHER = Coro::async {	1627	our $MAP_PREFETCHER = undef;
1440	while () {
1441	for my $path (keys %MAP_PREFETCH) {
1442	my $map = find $path
1443	or next;
1444	$map->load;
1445
1446	delete $MAP_PREFETCH{$path};
1447	}
1448	Coro::schedule;
1449	}
1450	};
1451		1628
1452	sub find_async {	1629	sub find_async {
1453	my ($path, $origin) = @_;	1630	my ($path, $origin) = @_;
1454		1631
1455	$path = normalise $path, $origin && $origin->{path};	1632	$path = normalise $path, $origin && $origin->{path};
1456		1633
1457	if (my $map = $cf::MAP{$path}) {	1634	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1459	}	1636	}
1460		1637
1461	$MAP_PREFETCH{$path} = 0;	1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
		1644	$map->load;
		1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
		1650	};
1462	$MAP_PREFETCHER->ready;	1651	$MAP_PREFETCHER->prio (6);
1463		1652
1464	()	1653	()
1465	}	1654	}
1466		1655
1467	sub save {	1656	sub save {
…		…
1512		1701
1513	sub reset_at {	1702	sub reset_at {
1514	my ($self) = @_;	1703	my ($self) = @_;
1515		1704
1516	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1517	return 1e99 if $self->isa ("ext::map_per_player");	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1518	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1519		1708
1520	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522		1711
…		…
1527	my ($self) = @_;	1716	my ($self) = @_;
1528		1717
1529	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1530	}	1719	}
1531		1720
1532	sub rename {
1533	my ($self, $new_path) = @_;
1534
1535	normalise $new_path;
1536
1537	$self->unlink_save;
1538
1539	delete $cf::MAP{$self->path};
1540	$self->{path} = $new_path; $self->path ($self->{path});
1541	$cf::MAP{$self->path} = $self;
1542
1543	$self->save;
1544	}
1545
1546	sub reset {	1721	sub reset {
1547	my ($self) = @_;	1722	my ($self) = @_;
1548		1723
1549	my $lock = cf::lock_acquire "map_data:" . $self->path;	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1550		1725
1551	return if $self->players;	1726	return if $self->players;
1552	return if $self->isa ("ext::map_per_player");#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1553		1728
1554	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;#d#
1555		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
		1740
1556	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1557		1744
1558	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1559		1746
1560	$self->unlink_save;	1747	$self->unlink_save;
1561	$self->destroy;	1748	$self->destroy;
…		…
1564	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1565		1752
1566	sub nuke {	1753	sub nuke {
1567	my ($self) = @_;	1754	my ($self) = @_;
1568		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1569	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1570	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1571	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1572	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1573	}	1769	}
1574		1770
1575	=item cf::map::unique_maps	1771	=item cf::map::unique_maps
1576		1772
…		…
1578	instantiated unique items. May block.	1774	instantiated unique items. May block.
1579		1775
1580	=cut	1776	=cut
1581		1777
1582	sub unique_maps() {	1778	sub unique_maps() {
1583	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1779	my $files = aio_readdir $UNIQUEDIR
1584	or return;	1780	or return;
1585		1781
1586	my @paths;	1782	my @paths;
1587		1783
1588	for (@$files) {	1784	for (@$files) {
1589	utf8::decode $_;	1785	utf8::decode $_;
1590	next if /\.pst$/;	1786	next if /\.pst$/;
1591	next unless /^$PATH_SEP/o;	1787	next unless /^$PATH_SEP/o;
1592		1788
1593	push @paths, $_;	1789	push @paths, cf::map::normalise $_;
1594	}	1790	}
1595		1791
1596	\@paths	1792	\@paths
1597	}	1793	}
1598		1794
…		…
1692	=cut	1888	=cut
1693		1889
1694	sub link_map {	1890	sub link_map {
1695	unless ($LINK_MAP) {	1891	unless ($LINK_MAP) {
1696	$LINK_MAP = cf::map::find "{link}"	1892	$LINK_MAP = cf::map::find "{link}"
1697	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698	$LINK_MAP->load;	1894	$LINK_MAP->load;
1699	}	1895	}
1700		1896
1701	$LINK_MAP	1897	$LINK_MAP
1702	}	1898	}
…		…
1707	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1708		1904
1709	return if UNIVERSAL::isa $self->map, "ext::map_link";	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		1906
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1713		1909
1714	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	1911	}
1716		1912
1717	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1719		1917
1720	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1721		1919
1722	unless ($map) {	1920	unless ($map) {
1723	# restore original map position	1921	# restore original map position
…		…
1741	$map->load;	1939	$map->load;
1742	$map->load_diag;	1940	$map->load_diag;
1743		1941
1744	return unless $self->contr->active;	1942	return unless $self->contr->active;
1745	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1747	}	1947	}
1748		1948
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1782		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1783	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1784		1959
1785	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1787		1965
1788	$self->enter_link;	1966	$self->enter_link;
1789		1967
1790	(async {	1968	(async {
		1969	my $map = eval {
1791	my $map = cf::map::find $path;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1792	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1793		1974	$map = $check->($map) if $check && $map;
1794	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1795	# if $map;
1796
1797	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1798		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1799	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1800	})->prio (1);	1991	})->prio (1);
1801	}	1992	}
1802		1993
1803	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1804		1995
…		…
1806		1997
1807	sub parse_random_map_params {	1998	sub parse_random_map_params {
1808	my ($spec) = @_;	1999	my ($spec) = @_;
1809		2000
1810	my $rmp = { # defaults	2001	my $rmp = { # defaults
1811	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1812	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1813	};	2006	};
1814		2007
1815	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1816	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1817		2010
…		…
1821	$rmp	2014	$rmp
1822	}	2015	}
1823		2016
1824	sub prepare_random_map {	2017	sub prepare_random_map {
1825	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1826		2021
1827	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1828	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1829	# that depends on the exit object	2024	# that depends on the exit object
1830		2025
1831	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1832		2027
1833	if ($exit->map) {	2028	if ($exit->map) {
1834	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1835	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1836	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1837	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1838	}	2033	}
1839		2034
1840	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1841		2036
1842	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1843	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1844		2040
1845	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1847		2045
1848	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1849	$exit->msg (undef);	2047	$exit->msg (undef);
1850	}	2048	}
1851	}	2049	}
1852		2050
1853	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1854	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1855		2053
1856	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
1857		2066
1858	$self->enter_link;	2067	$self->enter_link;
1859		2068
1860	(async {	2069	(async {
1861	$self->deactivate_recursive; # just to be sure	2070	$self->deactivate_recursive; # just to be sure
1862	unless (eval {	2071	unless (eval {
1863	prepare_random_map $exit	2072	$self->goto ($slaying, $hp, $sp);
1864	if $exit->slaying eq "/!";
1865
1866	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1867	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1868		2073
1869	1;	2074	1;
1870	}) {	2075	}) {
1871	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1872	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1873	. "Please report this to the dungeon master!",	2078	. "Please report this to the dungeon master!",
1874	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1875		2080
1876	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1877	$self->leave_link;	2082	$self->leave_link;
1878	}	2083	}
1879	})->prio (1);	2084	})->prio (1);
…		…
1892		2097
1893	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1894	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1895		2100
1896	utf8::encode $text;	2101	utf8::encode $text;
1897	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1898	}	2103	}
1899		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1900		2117
1901	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1902		2119
1903	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1933	# get handled first	2150	# get handled first
1934	my $queue = delete $ns->{query_queue}	2151	my $queue = delete $ns->{query_queue}
1935	or return; # be conservative, not sure how that can happen, but we saw a crash here	2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1936		2153
1937	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938		2156
1939	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1940		2158
1941	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1942	if (@$queue) {	2160	if (@$queue) {
…		…
2000		2218
2001	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
2002		2220
2003	=pod	2221	=pod
2004		2222
2005	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
2006		2224
2007	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
2008	cf::object::player player	2226	cf::object::player player
2009	cf::player peaceful	2227	cf::player peaceful
2010	cf::map trigger	2228	cf::map trigger
…		…
2095	#############################################################################	2313	#############################################################################
2096		2314
2097	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2098		2316
2099	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2100	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2101	excludes objects.	2319	convert to/from binary).
2102		2320
2103	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
2104	using it, it should be unique.	2322	using it, it should be unique.
2105		2323
2106	=over 4	2324	=over 4
2107		2325
2108	=item $hashref = cf::db_get $family
2109
2110	Return a hashref for use by the extension C<$family>, which can be
2111	modified. After modifications, you have to call C<cf::db_dirty> or
2112	C<cf::db_sync>.
2113
2114	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
2115		2327
2116	Returns a single value from the database	2328	Returns a single value from the database.
2117
2118	=item cf::db_put $family => $hashref
2119
2120	Stores the given family hashref into the database. Updates are delayed, if
2121	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2122		2329
2123	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2124		2331
2125	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
2126	want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128	=item cf::db_dirty
2129
2130	Marks the database as dirty, to be updated at a later time.
2131
2132	=item cf::db_sync
2133
2134	Immediately write the database to disk I<if it is dirty>.
2135		2333
2136	=cut	2334	=cut
2137		2335
2138	our $DB;	2336	our $DB;
2139		2337
2140	{	2338	sub db_init {
2141	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2142		2341
2143	sub db_load() {	2342	cf::sync_job {
2144	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2145	}	2344	$DB->set_flags (BDB::CHKSUM);
2146		2345
2147	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2148		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2149	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2150	waitpid $pid, 0 if $pid;	2349	};
2151	if (0 == ($pid = fork)) {	2350	cf::cleanup "db_open(db): $@" if $@;
2152	$DB->{_meta}{version} = 1;
2153	Storable::nstore $DB, "$path~";
2154	rename "$path~", $path;
2155	cf::_exit 0 if defined $pid;
2156	}	2351	};
2157	}
2158
2159	my $dirty;
2160
2161	sub db_sync() {
2162	db_save if $dirty;
2163	undef $dirty;
2164	}
2165
2166	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167	db_sync;
2168	});	2352	}
		2353	}
2169		2354
2170	sub db_dirty() {
2171	$dirty = 1;
2172	$idle->start;
2173	}
2174
2175	sub db_get($;$) {	2355	sub db_get($$) {
2176	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2177	? $DB->{$_[0]}{$_[1]}
2178	: ($DB->{$_[0]} ||= { })
2179	}
2180		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2181	sub db_put($$;$) {	2366	sub db_put($$$) {
2182	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2183	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2184	} else {	2369	}
2185	$DB->{$_[0]} = $_[1];
2186	}
2187	db_dirty;
2188	}
2189		2370
2190	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2191	prio => 10000,	2372
2192	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2193	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
2194	},	2403	}
2195	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2196	}	2483	}
2197		2484
2198	#############################################################################	2485	#############################################################################
2199	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
2200		2574
2201	sub cfg_load {	2575	sub cfg_load {
2202	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
2203	or return;	2577	or return;
2204		2578
2205	local $/;	2579	local $/;
2206	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
2207		2581
…		…
2221		2595
2222	sub main {	2596	sub main {
2223	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
2224	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
2225	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2600	(async {
2226	async { Event::one_event };	2601	Event::one_event;
		2602	})->prio (Coro::PRIO_MAX);
2227	};	2603	};
2228		2604
2229	cfg_load;	2605	cfg_load;
2230	db_load;	2606	db_init;
2231	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
2232	Event::loop;	2610	Event::loop;
2233	}	2611	}
2234		2612
2235	#############################################################################	2613	#############################################################################
2236	# initialisation and cleanup	2614	# initialisation and cleanup
2237		2615
2238	# install some emergency cleanup handlers	2616	# install some emergency cleanup handlers
2239	BEGIN {	2617	BEGIN {
2240	for my $signal (qw(INT HUP TERM)) {	2618	for my $signal (qw(INT HUP TERM)) {
2241	Event->signal (	2619	Event->signal (
		2620	reentrant => 0,
2242	data => WF_AUTOCANCEL,	2621	data => WF_AUTOCANCEL,
2243	signal => $signal,	2622	signal => $signal,
		2623	prio => 0,
2244	cb => sub {	2624	cb => sub {
2245	cf::cleanup "SIG$signal";	2625	cf::cleanup "SIG$signal";
2246	},	2626	},
2247	);	2627	);
2248	}	2628	}
2249	}	2629	}
…		…
2254	warn "enter emergency perl save\n";	2634	warn "enter emergency perl save\n";
2255		2635
2256	cf::sync_job {	2636	cf::sync_job {
2257	# use a peculiar iteration method to avoid tripping on perl	2637	# use a peculiar iteration method to avoid tripping on perl
2258	# refcount bugs in for. also avoids problems with players	2638	# refcount bugs in for. also avoids problems with players
2259	# and maps saved/Destroyed asynchronously.	2639	# and maps saved/destroyed asynchronously.
2260	warn "begin emergency player save\n";	2640	warn "begin emergency player save\n";
2261	for my $login (keys %cf::PLAYER) {	2641	for my $login (keys %cf::PLAYER) {
2262	my $pl = $cf::PLAYER{$login} or next;	2642	my $pl = $cf::PLAYER{$login} or next;
2263	$pl->valid or next;	2643	$pl->valid or next;
2264	$pl->save;	2644	$pl->save;
…		…
2270	my $map = $cf::MAP{$path} or next;	2650	my $map = $cf::MAP{$path} or next;
2271	$map->valid or next;	2651	$map->valid or next;
2272	$map->save;	2652	$map->save;
2273	}	2653	}
2274	warn "end emergency map save\n";	2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
2275	};	2659	};
2276		2660
2277	warn "leave emergency perl save\n";	2661	warn "leave emergency perl save\n";
2278	}	2662	}
2279		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
2280	sub reload() {	2671	sub do_reload_perl() {
2281	# can/must only be called in main	2672	# can/must only be called in main
2282	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
2283	warn "can only reload from main coroutine\n";	2674	warn "can only reload from main coroutine";
2284	return;	2675	return;
2285	}	2676	}
2286		2677
2287	warn "reloading...";	2678	warn "reloading...";
2288		2679
2289	warn "freezing server";	2680	warn "entering sync_job";
2290	my $guard = freeze_mainloop;	2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
2291	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
2292		2686
2293	warn "sync database to disk";	2687	warn "syncing database to disk";
2294	cf::db_sync;	2688	BDB::db_env_txn_checkpoint $DB_ENV;
2295	IO::AIO::flush;
2296		2689
2297	eval {
2298	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
2299		2691
2300	warn "cancel all watchers";	2692	warn "cancelling all WF_AUTOCANCEL watchers";
2301	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
2302	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2303	}	2695	}
2304		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
2305	warn "cancel all extension coros";	2708	warn "cancelling all extension coros";
2306	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
2307	%EXT_CORO = ();	2710	%EXT_CORO = ();
2308		2711
2309	warn "remove commands";	2712	warn "removing commands";
2310	%COMMAND = ();	2713	%COMMAND = ();
2311		2714
2312	warn "remove ext commands";	2715	warn "removing ext commands";
2313	%EXTCMD = ();	2716	%EXTCMD = ();
2314		2717
2315	warn "unload/nuke all extensions";	2718	warn "unloading/nuking all extensions";
2316	for my $pkg (@EXTS) {	2719	for my $pkg (@EXTS) {
2317	warn "... unloading $pkg";	2720	warn "... unloading $pkg";
2318		2721
2319	if (my $cb = $pkg->can ("unload")) {	2722	if (my $cb = $pkg->can ("unload")) {
2320	eval {	2723	eval {
…		…
2325		2728
2326	warn "... nuking $pkg";	2729	warn "... nuking $pkg";
2327	Symbol::delete_package $pkg;	2730	Symbol::delete_package $pkg;
2328	}	2731	}
2329		2732
2330	warn "unload all perl modules loaded from $LIBDIR";	2733	warn "unloading all perl modules loaded from $LIBDIR";
2331	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
2332	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333		2736
2334	warn "removing <$k>";	2737	warn "... unloading $k";
2335	delete $INC{$k};	2738	delete $INC{$k};
2336		2739
2337	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
2338	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
2339		2742
…		…
2342	}	2745	}
2343		2746
2344	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
2345	}	2748	}
2346		2749
2347	warn "get rid of safe::, as good as possible";	2750	warn "getting rid of safe::, as good as possible";
2348	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
2349	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350		2753
2351	warn "unload cf.pm \"a bit\"";	2754	warn "unloading cf.pm \"a bit\"";
2352	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
2353		2757
2354	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
2355	# and global variables created in xs	2759	# and global variables created in xs
2356	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
2357		2761
		2762	warn "unload completed, starting to reload now";
		2763
2358	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
2359	require cf;	2765	require cf;
2360	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2361		2767
2362	warn "load config and database again";	2768	warn "loading config and database again";
2363	cf::cfg_load;	2769	cf::cfg_load;
2364	cf::db_load;
2365		2770
2366	warn "load extensions";	2771	warn "loading extensions";
2367	cf::load_extensions;	2772	cf::load_extensions;
2368		2773
2369	warn "reattach attachments to objects/players";	2774	warn "reattaching attachments to objects/players";
2370	_global_reattach;	2775	_global_reattach; # objects, sockets
2371	warn "reattach attachments to maps";	2776	warn "reattaching attachments to maps";
2372	reattach $_ for values %MAP;	2777	reattach $_ for values %MAP;
2373	};	2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
2374		2780
2375	if ($@) {	2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
2376	warn $@;	2785	warn $@;
2377	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
2378	exit 1;	2787	exit 1;
2379	}	2788	};
2380		2789
2381	warn "reloaded";	2790	warn "reloaded";
2382	};	2791	};
2383		2792
		2793	our $RELOAD_WATCHER; # used only during reload
		2794
		2795	sub reload_perl() {
		2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
		2798
		2799	$RELOAD_WATCHER ||= Event->timer (
		2800	reentrant => 0,
		2801	after => 0,
		2802	data => WF_AUTOCANCEL,
		2803	cb => sub {
		2804	do_reload_perl;
		2805	undef $RELOAD_WATCHER;
		2806	},
		2807	);
		2808	}
		2809
2384	register_command "reload" => sub {	2810	register_command "reload" => sub {
2385	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
2386		2812
2387	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
2388	$who->message ("start of reload.");
2389	reload;
2390	$who->message ("end of reload.");	2814	$who->message ("reloading server.");
		2815	async { reload_perl };
2391	}	2816	}
2392	};	2817	};
2393		2818
2394	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
2395		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
2396	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
2397	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
2398	prio => 0,	2849	prio => 0,
2399	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
2400	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
2401	cb => sub {	2852	cb => sub {
		2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
2402	$NOW = Event::time;	2859	$NOW = $tick_start = Event::time;
2403		2860
2404	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
		2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2884	};
		2885
2405	$RUNTIME += $TICK;	2886	$RUNTIME += $TICK;
2406	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2407		2888
2408	$WAIT_FOR_TICK->broadcast;	2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2409	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
2410		2908
2411	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2412	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2413		2911
2414	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2415	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2416	},	2921	},
2417	);	2922	);
2418		2923
		2924	{
2419	IO::AIO::max_poll_time $TICK * 0.2;	2925	BDB::max_poll_time $TICK * 0.1;
2420		2926	$BDB_POLL_WATCHER = Event->io (
2421	Event->io (	2927	reentrant => 0,
2422	fd => IO::AIO::poll_fileno,	2928	fd => BDB::poll_fileno,
2423	poll => 'r',	2929	poll => 'r',
2424	prio => 5,	2930	prio => 0,
2425	data => WF_AUTOCANCEL,
2426	cb => \&IO::AIO::poll_cb,
2427	);
2428
2429	Event->timer (
2430	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2431	after => 0,	2932	cb => \&BDB::poll_cb,
2432	interval => 10,	2933	);
2433	cb => sub {	2934	BDB::min_parallel 8;
2434	(Coro::unblock_sub {	2935
2435	write_runtime	2936	BDB::set_sync_prepare {
2436	or warn "ERROR: unable to write runtime file: $!";	2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
2437	})->();	2970	};
2438	},	2971	}
2439	);	2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
		2978	IO::AIO::max_poll_time $TICK * 0.1;
		2979	$AIO_POLL_WATCHER = Event->io (
		2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
		2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
		2988
		2989	my $_log_backtrace;
		2990
		2991	sub _log_backtrace {
		2992	my ($msg, @addr) = @_;
		2993
		2994	$msg =~ s/\n//;
		2995
		2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
2440		3029
2441	END { cf::emergency_save }	3030	END { cf::emergency_save }
2442		3031
2443	1	3032	1
2444		3033

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