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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.164 by root, Thu Jan 11 01:24:25 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 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	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		91
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
64		94
65	binmode STDOUT;	95	binmode STDOUT;
66	binmode STDERR;	96	binmode STDERR;
67		97
68	# read virtual server time, if available	98	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
73	}	103	}
74		104
75	mkdir cf::localdir;	105	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		107
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
84		111
85	#############################################################################	112	#############################################################################
86		113
87	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
88		115
…		…
95	=item $cf::RUNTIME	122	=item $cf::RUNTIME
96		123
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	125	every server tick.
99		126
100	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		130
102	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
104		135
105	=item $cf::NOW	136	=item $cf::NOW
106		137
107	The time of the last (current) server tick.	138	The time of the last (current) server tick.
108		139
…		…
113	=item %cf::CFG	144	=item %cf::CFG
114		145
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	147	from wherever your confdir points to.
117		148
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	149	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		150
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	152	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.
124		154
125	=back	155	=back
126		156
127	=cut	157	=cut
128		158
129	BEGIN {	159	BEGIN {
130	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	161	my $msg = join "", @_;
132	utf8::encode $msg;
133		162
134	$msg .= "\n"	163	$msg .= "\n"
135	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
136		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
137	LOG llevError, $msg;	169	LOG llevError, $msg;
138	};	170	};
139	}	171	}
140		172
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	220	$d
189	} || "[unable to dump $_[0]: '$@']";	221	} || "[unable to dump $_[0]: '$@']";
190	}	222	}
191		223
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
193		225
194	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
195		227
196	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
197		229
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
206		231
207	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
208
209	=cut
210
211	sub to_json($) {
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
213	JSON::Syck::Dump $_[0]
214	}
215		233
216	=item cf::lock_wait $string	234	=item cf::lock_wait $string
217		235
218	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
219		237
…		…
225	returned.	243	returned.
226		244
227	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
229		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
230	=cut	252	=cut
231		253
232	our %LOCK;	254	our %LOCK;
233		255
234	sub lock_wait($) {	256	sub lock_wait($) {
…		…
253	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
255	}	277	}
256	}	278	}
257		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
258	sub freeze_mainloop {	286	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
260		288
261	my $guard = Coro::guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
262	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
263	$guard	293	$guard
264	}	294	}
265		295
266	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
…		…
337		367
338	$coro	368	$coro
339	}	369	}
340		370
341	sub write_runtime {	371	sub write_runtime {
342	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
343		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
345	or return;	386	or return;
346		387
		388	my $value = $cf::RUNTIME + 90 + 10;
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;	393	and return;
350		394
		395	# always fsync - this file is important
351	aio_fsync $fh	396	aio_fsync $fh
352	and return;	397	and return;
353		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
354	close $fh	402	close $fh
355	or return;	403	or return;
356		404
357	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
358	and return;	406	and return;
359		407
		408	warn "... done writing runtime.\n";#d#
		409
360	1	410	1
361	}	411	}
362		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
363	=back	424	=back
364		425
365	=cut	426	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	sub unlink_save {
522	my ($self) = @_;
523
524	utf8::encode (my $save = $self->save_path);
525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
527	}
528
529	package cf;
530		427
531	#############################################################################	428	#############################################################################
532		429
533	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
534		431
…		…
660	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
661	our @CB_MAP = ();	558	our @CB_MAP = ();
662		559
663	my %attachment;	560	my %attachment;
664		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
665	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
666	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
667		570
668	use sort 'stable';	571	use sort 'stable';
669		572
…		…
840	# object support	743	# object support
841		744
842	sub reattach {	745	sub reattach {
843	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
844	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
845		750
846	my $registry = $obj->registry;	751	my $registry = $obj->registry;
847		752
848	@$registry = ();	753	@$registry = ();
849		754
…		…
896	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
897		802
898	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
899	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
900	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
901	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	807	close $fh;
903		808
904	if (@$objs) {	809	if (@$objs) {
905	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
906	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
907	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
908	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
909	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
910	close $fh;	815	close $fh;
911	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
912	}	817	}
913	} else {	818	} else {
914	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
1036	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
1037	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
1038	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
1039	. "\n};\n1";	944	. "\n};\n1";
1040		945
1041	eval $source	946	unless (eval $source) {
1042	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
1043	: "extension disabled.\n";	948	: "extension disabled.\n";
		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
		950	warn $@;
		951	warn "mandatory extension failed to load, exiting.\n";
		952	exit 1;
		953	}
		954	die $@;
		955	}
1044		956
1045	push @EXTS, $pkg;	957	push @EXTS, $pkg;
1046	}	958	}
1047		959
1048	sub load_extensions {	960	sub load_extensions {
…		…
1054	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
1055	}	967	}
1056	}	968	}
1057		969
1058	#############################################################################	970	#############################################################################
1059	# load/save/clean perl data associated with a map
1060
1061	*cf::mapsupport::on_clean = sub {
1062	my ($map) = @_;
1063
1064	my $path = $map->tmpname;
1065	defined $path or return;
1066
1067	unlink "$path.pst";
1068	};
1069
1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1071
1072	#############################################################################
1073		971
1074	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1075		973
1076	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1077		975
…		…
1090	Returns the given player object, loading it if necessary (might block).	988	Returns the given player object, loading it if necessary (might block).
1091		989
1092	=cut	990	=cut
1093		991
1094	sub playerdir($) {	992	sub playerdir($) {
1095	cf::localdir	993	"$PLAYERDIR/"
1096	. "/"
1097	. cf::playerdir
1098	. "/"
1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1100	}	995	}
1101		996
1102	sub path($) {	997	sub path($) {
1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1104		999
1105	(playerdir $login) . "/$login.pl"	1000	(playerdir $login) . "/playerdata"
1106	}	1001	}
1107		1002
1108	sub find_active($) {	1003	sub find_active($) {
1109	$cf::PLAYER{$_[0]}	1004	$cf::PLAYER{$_[0]}
1110	and $cf::PLAYER{$_[0]}->active	1005	and $cf::PLAYER{$_[0]}->active
…		…
1113		1008
1114	sub exists($) {	1009	sub exists($) {
1115	my ($login) = @_;	1010	my ($login) = @_;
1116		1011
1117	$cf::PLAYER{$login}	1012	$cf::PLAYER{$login}
1118	or cf::sync_job { !aio_stat $login }	1013	or cf::sync_job { !aio_stat path $login }
1119	}	1014	}
1120		1015
1121	sub find($) {	1016	sub find($) {
1122	return $cf::PLAYER{$_[0]} || do {	1017	return $cf::PLAYER{$_[0]} || do {
1123	my $login = $_[0];	1018	my $login = $_[0];
1124		1019
1125	my $guard = cf::lock_acquire "user_find:$login";	1020	my $guard = cf::lock_acquire "user_find:$login";
1126		1021
1127	$cf::PLAYER{$_[0]} || do {	1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
1128	my $pl = load_pl path $login	1030	my $pl = load_pl path $login
1129	or return;	1031	or return;
1130	$cf::PLAYER{$login} = $pl	1032	$cf::PLAYER{$login} = $pl
1131	}	1033	}
1132	}	1034	}
…		…
1169		1071
1170	=cut	1072	=cut
1171		1073
1172	sub quit_character {	1074	sub quit_character {
1173	my ($pl) = @_;	1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
1174		1078
1175	$pl->{deny_save} = 1;	1079	$pl->{deny_save} = 1;
1176	$pl->password ("*"); # this should lock out the player until we nuked the dir	1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
1177		1081
1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1183	my $path = playerdir $pl;	1087	my $path = playerdir $pl;
1184	my $temp = "$path~$cf::RUNTIME~deleting~";	1088	my $temp = "$path~$cf::RUNTIME~deleting~";
1185	aio_rename $path, $temp;	1089	aio_rename $path, $temp;
1186	delete $cf::PLAYER{$pl->ob->name};	1090	delete $cf::PLAYER{$pl->ob->name};
1187	$pl->destroy;	1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
1188	IO::AIO::aio_rmtree $temp;	1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
1189	}	1113	}
1190		1114
1191	=item cf::player::list_logins	1115	=item cf::player::list_logins
1192		1116
1193	Returns am arrayref of all valid playernames in the system, can take a	1117	Returns am arrayref of all valid playernames in the system, can take a
1194	while and may block, so not sync_job-capable, ever.	1118	while and may block, so not sync_job-capable, ever.
1195		1119
1196	=cut	1120	=cut
1197		1121
1198	sub list_logins {	1122	sub list_logins {
1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1123	my $dirs = aio_readdir $PLAYERDIR
1200	or return [];	1124	or return [];
1201		1125
1202	my @logins;	1126	my @logins;
1203		1127
1204	for my $login (@$dirs) {	1128	for my $login (@$dirs) {
…		…
1213	\@logins	1137	\@logins
1214	}	1138	}
1215		1139
1216	=item $player->maps	1140	=item $player->maps
1217		1141
1218	Returns an arrayref of cf::path's of all maps that are private for this	1142	Returns an arrayref of map paths that are private for this
1219	player. May block.	1143	player. May block.
1220		1144
1221	=cut	1145	=cut
1222		1146
1223	sub maps($) {	1147	sub maps($) {
1224	my ($pl) = @_;	1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
1225		1151
1226	my $files = aio_readdir playerdir $pl	1152	my $files = aio_readdir playerdir $pl
1227	or return;	1153	or return;
1228		1154
1229	my @paths;	1155	my @paths;
…		…
1231	for (@$files) {	1157	for (@$files) {
1232	utf8::decode $_;	1158	utf8::decode $_;
1233	next if /\.(?:pl|pst)$/;	1159	next if /\.(?:pl|pst)$/;
1234	next unless /^$PATH_SEP/o;	1160	next unless /^$PATH_SEP/o;
1235		1161
1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1162	push @paths, cf::map::normalise "~$pl/$_";
1237	}	1163	}
1238		1164
1239	\@paths	1165	\@paths
1240	}	1166	}
1241		1167
1242	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1243		1169
1244	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1245		1171
1246	=cut	1172	=cut
1247		1173
1248	sub ext_reply($$$%) {	1174	sub ext_reply($$%) {
1249	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1250		1176
1251	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1252		1178
1253	$self->send ("ext " . cf::to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
1254	}	1180	}
1255		1181
1256	package cf;	1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
		1221	}
1257		1222
1258	=back	1223	=back
1259
1260		1224
1261	=head3 cf::map	1225	=head3 cf::map
1262		1226
1263	=over 4	1227	=over 4
1264		1228
…		…
1267	package cf::map;	1231	package cf::map;
1268		1232
1269	use Fcntl;	1233	use Fcntl;
1270	use Coro::AIO;	1234	use Coro::AIO;
1271		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1272	our $MAX_RESET = 3600;	1240	our $MAX_RESET = 3600;
1273	our $DEFAULT_RESET = 3000;	1241	our $DEFAULT_RESET = 3000;
1274		1242
1275	sub generate_random_map {	1243	sub generate_random_map {
1276	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1277
1278	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1279	cf::map::_create_random_map (	1246	$self->_create_random_map (
1280	$path,
1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1284	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1285	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
…		…
1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1291	(cf::region::find $rmp->{region}), $rmp->{custom}	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
1292	)	1258	)
1293	}	1259	}
1294		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
		1388	}
		1389
1295	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1296	# all maps in C++...	1391	# all maps in C++...
1297	sub change_all_map_light {	1392	sub change_all_map_light {
1298	my ($change) = @_;	1393	my ($change) = @_;
1299		1394
1300	$_->change_map_light ($change)	1395	$_->change_map_light ($change)
1301	for grep $_->outdoor, values %cf::MAP;	1396	for grep $_->outdoor, values %cf::MAP;
1302	}	1397	}
1303		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1304	sub load_map_header($) {	1407	sub load_header_from($) {
1305	my ($path) = @_;	1408	my ($self, $path) = @_;
1306		1409
1307	utf8::encode $path;	1410	utf8::encode $path;
1308	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1309	or return;	1415	or return;
1310		1416
1311	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1312	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1313		1463
1314	# for better error messages only, will be overwritten later	1464	$self->default_region (cf::region::find_by_path $self->{path})
1315	$map->path ($path);	1465	unless $self->default_region;
1316		1466
1317	$map->load_header ($path)	1467	1
1318	or return;
1319
1320	$map->{load_path} = $path;
1321
1322	$map
1323	}	1468	}
1324		1469
1325	sub find;	1470	sub find;
1326	sub find {	1471	sub find {
1327	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1328		1473
1329	#warn "find<$path,$origin>\n";#d#
1330
1331	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1332	my $key = $path->as_string;
1333		1475
1334	cf::lock_wait "map_find:$key";	1476	cf::lock_wait "map_find:$path";
1335		1477
1336	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1337	my $guard = cf::lock_acquire "map_find:$key";	1479	my $guard = cf::lock_acquire "map_find:$path";
1338		1480	my $map = new_from_path cf::map $path
1339	# do it the slow way
1340	my $map = $path->load_temp;
1341
1342	Coro::cede;
1343
1344	if ($map) {
1345	$map->last_access ((delete $map->{last_access})
1346	|| $cf::RUNTIME); #d#
1347	# safety
1348	$map->{instantiate_time} = $cf::RUNTIME
1349	if $map->{instantiate_time} > $cf::RUNTIME;
1350	} else {
1351	$map = $path->load_orig
1352	or return;	1481	or return;
1353		1482
1354	$map->{load_original} = 1;
1355	$map->{instantiate_time} = $cf::RUNTIME;
1356	$map->last_access ($cf::RUNTIME);
1357	$map->instantiate;
1358
1359	# per-player maps become, after loading, normal maps
1360	$map->per_player (0) if $path->{user_rel};
1361	}
1362
1363	$map->path ($key);
1364	$map->{path} = $path;
1365	$map->{last_save} = $cf::RUNTIME;	1483	$map->{last_save} = $cf::RUNTIME;
1366		1484
1367	Coro::cede;	1485	$map->load_header
		1486	or return;
1368		1487
1369	if ($map->should_reset) {	1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
1370	$map->reset;	1491	$map->reset;
1371	undef $guard;	1492	undef $guard;
1372	$map = find $path	1493	return find $path;
1373	or return;
1374	}	1494	}
1375		1495
1376	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1377	}	1497	}
1378	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1379		1502
1380	sub load {	1503	sub load {
1381	my ($self) = @_;	1504	my ($self) = @_;
1382		1505
		1506	local $self->{deny_reset} = 1; # loading can take a long time
		1507
1383	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1511	my $guard = cf::lock_acquire "map_load:$path";
1385		1512
1386	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1387		1514
1388	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1389		1516
1390	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1391	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1392	or return;	1523	or return;
1393		1524
1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1395	if delete $self->{load_original};	1526	if delete $self->{load_original};
1396		1527
1397	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1398	utf8::encode $uniq;	1529	utf8::encode $uniq;
1399	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1400	$self->clear_unique_items;	1531	$self->clear_unique_items;
1401	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1402	}	1533	}
1403	}	1534	}
1404		1535
1405	Coro::cede;	1536	Coro::cede;
1406
1407	# now do the right thing for maps	1537	# now do the right thing for maps
1408	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1409
1410	if ($self->{path}->is_style_map) {
1411	$self->{deny_save} = 1;
1412	$self->{deny_reset} = 1;
1413	} else {
1414	$self->decay_objects;
1415	$self->fix_auto_apply;
1416	$self->update_buttons;
1417	$self->set_darkness_map;
1418	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1419	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1420	$self->activate;	1550	$self->activate;
1421	}	1551	}
1422		1552
1423	Coro::cede;
1424
1425	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
		1554	}
		1555
		1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
1426	}	1566	}
1427		1567
1428	# find and load all maps in the 3x3 area around a map	1568	# find and load all maps in the 3x3 area around a map
1429	sub load_diag {	1569	sub load_diag {
1430	my ($map) = @_;	1570	my ($map) = @_;
…		…
1460		1600
1461	cf::sync_job { $map->load };	1601	cf::sync_job { $map->load };
1462	}	1602	}
1463		1603
1464	our %MAP_PREFETCH;	1604	our %MAP_PREFETCH;
1465	our $MAP_PREFETCHER = Coro::async {	1605	our $MAP_PREFETCHER = undef;
1466	while () {
1467	while (%MAP_PREFETCH) {
1468	my $key = each %MAP_PREFETCH
1469	or next;
1470	my $path = delete $MAP_PREFETCH{$key};
1471
1472	my $map = find $path
1473	or next;
1474	$map->load;
1475	}
1476	Coro::schedule;
1477	}
1478	};
1479		1606
1480	sub find_async {	1607	sub find_async {
1481	my ($path, $origin) = @_;	1608	my ($path, $origin) = @_;
1482		1609
1483	$path = new cf::path $path, $origin && $origin->path;	1610	$path = normalise $path, $origin && $origin->{path};
1484	my $key = $path->as_string;
1485		1611
1486	if (my $map = $cf::MAP{$key}) {	1612	if (my $map = $cf::MAP{$path}) {
1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1488	}	1614	}
1489		1615
1490	$MAP_PREFETCH{$key} = $path;	1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
		1622	$map->load;
		1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
		1628	};
1491	$MAP_PREFETCHER->ready;	1629	$MAP_PREFETCHER->prio (6);
1492		1630
1493	()	1631	()
1494	}	1632	}
1495		1633
1496	sub save {	1634	sub save {
…		…
1500		1638
1501	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1502		1640
1503	return unless $self->dirty;	1641	return unless $self->dirty;
1504		1642
1505	my $save = $self->{path}->save_path; utf8::encode $save;	1643	my $save = $self->save_path; utf8::encode $save;
1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
1507		1645
1508	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1509		1647
1510	return if $self->{deny_save};	1648	return if $self->{deny_save};
1511		1649
…		…
1514	cf::async {	1652	cf::async {
1515	$_->contr->save for $self->players;	1653	$_->contr->save for $self->players;
1516	};	1654	};
1517		1655
1518	if ($uniq) {	1656	if ($uniq) {
1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1520	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1521	} else {	1659	} else {
1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1523	}	1661	}
1524	}	1662	}
1525		1663
1526	sub swap_out {	1664	sub swap_out {
1527	my ($self) = @_;	1665	my ($self) = @_;
…		…
1541		1679
1542	sub reset_at {	1680	sub reset_at {
1543	my ($self) = @_;	1681	my ($self) = @_;
1544		1682
1545	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1546	return 1e99 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1547	return 1e99 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1548		1686
1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1551		1689
…		…
1556	my ($self) = @_;	1694	my ($self) = @_;
1557		1695
1558	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1559	}	1697	}
1560		1698
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->{path}->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	1699	sub reset {
1575	my ($self) = @_;	1700	my ($self) = @_;
1576		1701
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		1703
1579	return if $self->players;	1704	return if $self->players;
1580	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1581		1706
1582	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1583		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1584	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
1585		1720
		1721	$self->clear;
		1722
1586	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1587		1724
1588	$self->{path}->unlink_save;	1725	$self->unlink_save;
1589	$self->destroy;	1726	$self->destroy;
1590	}	1727	}
1591		1728
1592	my $nuke_counter = "aaaa";	1729	my $nuke_counter = "aaaa";
1593		1730
1594	sub nuke {	1731	sub nuke {
1595	my ($self) = @_;	1732	my ($self) = @_;
1596		1733
		1734	delete $cf::MAP{$self->path};
		1735
		1736	$self->unlink_save;
		1737
		1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	1740	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	1741	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1743
		1744	$cf::MAP{$self->path} = $self;
		1745
1600	$self->reset; # polite request, might not happen	1746	$self->reset; # polite request, might not happen
1601	}	1747	}
1602		1748
1603	sub customise_for {
1604	my ($map, $ob) = @_;
1605
1606	if ($map->per_player) {
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1608	}
1609
1610	$map
1611	}
1612
1613	=item cf::map::unique_maps	1749	=item cf::map::unique_maps
1614		1750
1615	Returns an arrayref of cf::path's of all shared maps that have	1751	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	1752	instantiated unique items. May block.
1617		1753
1618	=cut	1754	=cut
1619		1755
1620	sub unique_maps() {	1756	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1757	my $files = aio_readdir $UNIQUEDIR
1622	or return;	1758	or return;
1623		1759
1624	my @paths;	1760	my @paths;
1625		1761
1626	for (@$files) {	1762	for (@$files) {
1627	utf8::decode $_;	1763	utf8::decode $_;
1628	next if /\.pst$/;	1764	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;	1765	next unless /^$PATH_SEP/o;
1630		1766
1631	push @paths, new cf::path $_;	1767	push @paths, cf::map::normalise $_;
1632	}	1768	}
1633		1769
1634	\@paths	1770	\@paths
1635	}	1771	}
1636		1772
…		…
1711		1847
1712	=item $player_object->enter_link	1848	=item $player_object->enter_link
1713		1849
1714	Freezes the player and moves him/her to a special map (C<{link}>).	1850	Freezes the player and moves him/her to a special map (C<{link}>).
1715		1851
1716	The player should be reaosnably safe there for short amounts of time. You	1852	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	1853	I<MUST> call C<leave_link> as soon as possible, though.
1718		1854
		1855	Will never block.
		1856
1719	=item $player_object->leave_link ($map, $x, $y)	1857	=item $player_object->leave_link ($map, $x, $y)
1720		1858
1721	Moves the player out of the specila link map onto the given map. If the	1859	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	1860	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	1861	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	1862	fails, to the emergency map position.
1725		1863
1726	Might block.	1864	Might block.
1727		1865
1728	=cut	1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
1729		1877
1730	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1731	my ($self) = @_;	1879	my ($self) = @_;
1732		1880
1733	$self->deactivate_recursive;	1881	$self->deactivate_recursive;
1734		1882
1735	return if $self->map == $LINK_MAP;	1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		1884
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	1886	if $self->map;
1739		1887
1740	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	1889	}
1742		1890
1743	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1745		1893
…		…
1767	$map->load;	1915	$map->load;
1768	$map->load_diag;	1916	$map->load_diag;
1769		1917
1770	return unless $self->contr->active;	1918	return unless $self->contr->active;
1771	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1773	}	1923	}
1774		1924
1775	cf::player->attach (	1925	cf::player->attach (
1776	on_logout => sub {	1926	on_logout => sub {
…		…
1789	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes	1940	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1793	(async {	1943	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,	1944	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "	1945	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",	1946	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);	1947	cf::NDI_RED);
		1948	# we need this sleep as the login has a concurrent enter_exit running
		1949	# and this sleep increases chances of the player not ending up in scorn
1800	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1802	})->prio (2);	1952	})->prio (2);
1803	}	1953	}
1804	},	1954	},
…		…
1809	=cut	1959	=cut
1810		1960
1811	sub cf::object::player::goto {	1961	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1813		1963
1814	$path = new cf::path $path;
1815
1816	$self->enter_link;	1964	$self->enter_link;
1817		1965
1818	(async {	1966	(async {
		1967	my $map = eval {
1819	my $map = cf::map::find $path->as_string;	1968	my $map = cf::map::find $path;
1820	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1821		1970	$map
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	1971	} or
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1826		1973
1827	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1828	})->prio (1);	1975	})->prio (1);
1829	}	1976	}
1830		1977
…		…
1834		1981
1835	sub parse_random_map_params {	1982	sub parse_random_map_params {
1836	my ($spec) = @_;	1983	my ($spec) = @_;
1837		1984
1838	my $rmp = { # defaults	1985	my $rmp = { # defaults
1839	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1841	};	1990	};
1842		1991
1843	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1845		1994
…		…
1849	$rmp	1998	$rmp
1850	}	1999	}
1851		2000
1852	sub prepare_random_map {	2001	sub prepare_random_map {
1853	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2005
1855	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2008	# that depends on the exit object
1858		2009
1859	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1860		2011
1861	if ($exit->map) {	2012	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1866	}	2017	}
1867		2018
1868	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1869		2020
1870	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1872		2024
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1875		2029
1876	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2031	$exit->msg (undef);
1878	}	2032	}
1879	}	2033	}
1880		2034
1881	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1883		2037
1884	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
1885		2050
1886	$self->enter_link;	2051	$self->enter_link;
1887		2052
1888	(async {	2053	(async {
1889	$self->deactivate_recursive; # just to be sure	2054	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2055	unless (eval {
1891	prepare_random_map $exit	2056	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2057
1897	1;	2058	1;
1898	}) {	2059	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2062	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2064
1904	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2066	$self->leave_link;
1906	}	2067	}
1907	})->prio (1);	2068	})->prio (1);
…		…
1920		2081
1921	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1923		2084
1924	utf8::encode $text;	2085	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2087	}
1927		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1928		2101
1929	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1930		2103
1931	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1961	# get handled first	2134	# get handled first
1962	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2137
1965	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2140
1967	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1968		2142
1969	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2144	if (@$queue) {
…		…
2028		2202
2029	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
2030		2204
2031	=pod	2205	=pod
2032		2206
2033	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
2034		2208
2035	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
2036	cf::object::player player	2210	cf::object::player player
2037	cf::player peaceful	2211	cf::player peaceful
2038	cf::map trigger	2212	cf::map trigger
…		…
2123	#############################################################################	2297	#############################################################################
2124		2298
2125	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
2126		2300
2127	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
2128	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2129	excludes objects.	2303	convert to/from binary).
2130		2304
2131	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
2132	using it, it should be unique.	2306	using it, it should be unique.
2133		2307
2134	=over 4	2308	=over 4
2135		2309
2136	=item $hashref = cf::db_get $family
2137
2138	Return a hashref for use by the extension C<$family>, which can be
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141
2142	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
2143		2311
2144	Returns a single value from the database	2312	Returns a single value from the database.
2145
2146	=item cf::db_put $family => $hashref
2147
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150		2313
2151	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
2152		2315
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163		2317
2164	=cut	2318	=cut
2165		2319
2166	our $DB;	2320	our $DB;
2167		2321
2168	{	2322	sub db_init {
2169	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
2170		2325
2171	sub db_load() {	2326	cf::sync_job {
2172	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
2173	}	2328	$DB->set_flags (BDB::CHKSUM);
2174		2329
2175	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2176		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2177	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
2178	waitpid $pid, 0 if $pid;	2333	};
2179	if (0 == ($pid = fork)) {	2334	cf::cleanup "db_open(db): $@" if $@;
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}	2335	};
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	2336	}
		2337	}
2197		2338
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {	2339	sub db_get($$) {
2204	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
2209	sub db_put($$;$) {	2350	sub db_put($$$) {
2210	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
2211	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2212	} else {	2353	}
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		2354
2218	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
2219	prio => 10000,	2356
2220	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
2221	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
2222	},	2387	}
2223	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
2224	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
2225		2470
2226	#############################################################################	2471	#############################################################################
2227	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
2228		2560
2229	sub cfg_load {	2561	sub cfg_load {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	2563	or return;
2232		2564
2233	local $/;	2565	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
2235		2567
…		…
2249		2581
2250	sub main {	2582	sub main {
2251	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2586	(async {
2254	async { Event::one_event };	2587	Event::one_event;
		2588	})->prio (Coro::PRIO_MAX);
2255	};	2589	};
2256		2590
2257	cfg_load;	2591	cfg_load;
2258	db_load;	2592	db_init;
2259	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
2260	Event::loop;	2596	Event::loop;
2261	}	2597	}
2262		2598
2263	#############################################################################	2599	#############################################################################
2264	# initialisation and cleanup	2600	# initialisation and cleanup
2265		2601
2266	# install some emergency cleanup handlers	2602	# install some emergency cleanup handlers
2267	BEGIN {	2603	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	2604	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	2605	Event->signal (
		2606	reentrant => 0,
2270	data => WF_AUTOCANCEL,	2607	data => WF_AUTOCANCEL,
2271	signal => $signal,	2608	signal => $signal,
		2609	prio => 0,
2272	cb => sub {	2610	cb => sub {
2273	cf::cleanup "SIG$signal";	2611	cf::cleanup "SIG$signal";
2274	},	2612	},
2275	);	2613	);
2276	}	2614	}
2277	}	2615	}
…		…
2282	warn "enter emergency perl save\n";	2620	warn "enter emergency perl save\n";
2283		2621
2284	cf::sync_job {	2622	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	2623	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	2624	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	2625	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	2626	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	2627	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	2628	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	2629	$pl->valid or next;
2292	$pl->save;	2630	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	2636	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	2637	$map->valid or next;
2300	$map->save;	2638	$map->save;
2301	}	2639	}
2302	warn "end emergency map save\n";	2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
2303	};	2645	};
2304		2646
2305	warn "leave emergency perl save\n";	2647	warn "leave emergency perl save\n";
2306	}	2648	}
2307		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
2308	sub reload() {	2657	sub do_reload_perl() {
2309	# can/must only be called in main	2658	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
2312	return;	2661	return;
2313	}	2662	}
2314		2663
2315	warn "reloading...";	2664	warn "reloading...";
2316		2665
2317	warn "freezing server";	2666	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2320		2672
2321	warn "sync database to disk";	2673	warn "syncing database to disk";
2322	cf::db_sync;	2674	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		2675
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
2327		2677
2328	warn "cancel all watchers";	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	2681	}
2332		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
2333	warn "cancel all extension coros";	2694	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	2696	%EXT_CORO = ();
2336		2697
2337	warn "remove commands";	2698	warn "removing commands";
2338	%COMMAND = ();	2699	%COMMAND = ();
2339		2700
2340	warn "remove ext commands";	2701	warn "removing ext commands";
2341	%EXTCMD = ();	2702	%EXTCMD = ();
2342		2703
2343	warn "unload/nuke all extensions";	2704	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	2705	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	2706	warn "... unloading $pkg";
2346		2707
2347	if (my $cb = $pkg->can ("unload")) {	2708	if (my $cb = $pkg->can ("unload")) {
2348	eval {	2709	eval {
…		…
2353		2714
2354	warn "... nuking $pkg";	2715	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	2716	Symbol::delete_package $pkg;
2356	}	2717	}
2357		2718
2358	warn "unload all perl modules loaded from $LIBDIR";	2719	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		2722
2362	warn "removing <$k>";	2723	warn "... unloading $k";
2363	delete $INC{$k};	2724	delete $INC{$k};
2364		2725
2365	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
2367		2728
…		…
2370	}	2731	}
2371		2732
2372	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
2373	}	2734	}
2374		2735
2375	warn "get rid of safe::, as good as possible";	2736	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		2739
2379	warn "unload cf.pm \"a bit\"";	2740	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2381		2743
2382	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2383	# and global variables created in xs	2745	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2385		2747
		2748	warn "unload completed, starting to reload now";
		2749
2386	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
2387	require cf;	2751	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2753
2390	warn "load config and database again";	2754	warn "loading config and database again";
2391	cf::cfg_load;	2755	cf::cfg_load;
2392	cf::db_load;
2393		2756
2394	warn "load extensions";	2757	warn "loading extensions";
2395	cf::load_extensions;	2758	cf::load_extensions;
2396		2759
2397	warn "reattach attachments to objects/players";	2760	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2761	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	2762	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2763	reattach $_ for values %MAP;
2401	};	2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2402		2766
2403	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
2404	warn $@;	2771	warn $@;
2405	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2406	exit 1;	2773	exit 1;
2407	}	2774	};
2408		2775
2409	warn "reloaded";	2776	warn "reloaded";
2410	};	2777	};
2411		2778
2412	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
2413		2780
2414	unless ($LINK_MAP) {	2781	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
2416		2784
2417	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	2786	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
2427	cb => sub {	2789	cb => sub {
2428	$_[0]->w->cancel;	2790	do_reload_perl;
2429		2791	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	2792	},
2448		2793	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	2794	}
2454		2795
2455	register_command "reload" => sub {	2796	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2457		2798
2458	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
2462	}	2802	}
2463	};	2803	};
2464		2804
2465	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
2466		2829
2467	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2469	prio => 0,	2833	prio => 0,
2470	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2472	cb => sub {	2836	cb => sub {
		2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
2473	$NOW = Event::time;	2843	$NOW = Event::time;
2474		2844
2475	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2476	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
2478		2849
2479	$WAIT_FOR_TICK->broadcast;	2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
2481		2860
2482	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2484		2863
2485	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2487	},	2875	},
2488	);	2876	);
2489		2877
		2878	{
2490	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2491		2880	$BDB_POLL_WATCHER = Event->io (
2492	Event->io (	2881	reentrant => 0,
2493	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2494	poll => 'r',	2883	poll => 'r',
2495	prio => 5,	2884	prio => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2502	after => 0,	2886	cb => \&BDB::poll_cb,
2503	interval => 10,	2887	);
2504	cb => sub {	2888	BDB::min_parallel 8;
2505	(Coro::unblock_sub {	2889
2506	write_runtime	2890	BDB::set_sync_prepare {
2507	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2508	})->();	2924	};
2509	},	2925	}
2510	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
2511		2983
2512	END { cf::emergency_save }	2984	END { cf::emergency_save }
2513		2985
2514	1	2986	1
2515		2987

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