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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.278 by root, Mon Jun 11 21:38:14 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;
49	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	76	our $NEXT_TICK;
52	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;
53		82
54	our %CFG;	83	our %CFG;
55		84
56	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	86	our $RUNTIME;
58		87
59	our %PLAYER; # all users	88	our %PLAYER; # all users
60	our %MAP; # all maps	89	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		91
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		98
70	binmode STDOUT;	99	binmode STDOUT;
71	binmode STDERR;	100	binmode STDERR;
72		101
73	# read virtual server time, if available	102	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
78	}	107	}
79		108
80	mkdir cf::localdir;	109	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		111
86	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
87		115
88	#############################################################################	116	#############################################################################
89		117
90	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
91		119
…		…
98	=item $cf::RUNTIME	126	=item $cf::RUNTIME
99		127
100	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
101	every server tick.	129	every server tick.
102		130
103	=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
104		134
105	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		139
108	=item $cf::NOW	140	=item $cf::NOW
109		141
110	The time of the last (current) server tick.	142	The time of the last (current) server tick.
111		143
112	=item $cf::TICK	144	=item $cf::TICK
113		145
114	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.
115		157
116	=item %cf::CFG	158	=item %cf::CFG
117		159
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	161	from wherever your confdir points to.
120		162
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		164
123	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
124	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
125	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.
126	window of cpu time available, or simply to synchronise to the server tick.
127		168
128	=back	169	=back
129		170
130	=cut	171	=cut
131		172
132	BEGIN {	173	BEGIN {
133	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	175	my $msg = join "", @_;
135	utf8::encode $msg;
136		176
137	$msg .= "\n"	177	$msg .= "\n"
138	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
139		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
140	LOG llevError, $msg;	183	LOG llevError, $msg;
141	};	184	};
142	}	185	}
143		186
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		194
151	# 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
152	# within the Safe compartment.	196	# within the Safe compartment.
153	for my $pkg (qw(	197	for my $pkg (qw(
154	cf::global cf::attachable	198	cf::global cf::attachable
…		…
190	$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;
191	$d	235	$d
192	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
193	}	237	}
194		238
195	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
196		240
197	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
198		242
199	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
200		244
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
209		246
210	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		248
219	=item cf::lock_wait $string	249	=item cf::lock_wait $string
220		250
221	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
222		252
…		…
228	returned.	258	returned.
229		259
230	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
231	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
232		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
233	=cut	267	=cut
234		268
235	our %LOCK;	269	our %LOCK;
236		270
237	sub lock_wait($) {	271	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
258	}	292	}
259	}	293	}
260		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
261	sub freeze_mainloop {	301	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
263		303
264	my $guard = Coro::guard {	304	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	305	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	306	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
270	$guard	308	$guard
271	}	309	}
272		310
273	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
295		333
296	sub sync_job(&) {	334	sub sync_job(&) {
297	my ($job) = @_;	335	my ($job) = @_;
298		336
299	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
300	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
302		342
303	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
315		355
316	while ($busy) {	356	while ($busy) {
317	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
318	}	358	}
319		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
320	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
321	} else {	368	} else {
322	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
323		370
324	$job->()	371	$job->()
…		…
344		391
345	$coro	392	$coro
346	}	393	}
347		394
348	sub write_runtime {	395	sub write_runtime {
349	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		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";
350		404
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352	or return;	406	or return;
353		407
		408	my $value = $cf::RUNTIME + 90 + 10;
354	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
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;	413	and return;
357		414
		415	# always fsync - this file is important
358	aio_fsync $fh	416	aio_fsync $fh
359	and return;	417	and return;
360		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
361	close $fh	422	close $fh
362	or return;	423	or return;
363		424
364	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
365	and return;	426	and return;
366		427
		428	warn "runtime file written.\n";
		429
367	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	442	}
369		443
370	=back	444	=back
371		445
372	=cut	446	=cut
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	578	our @CB_MAP = ();
505		579
506	my %attachment;	580	my %attachment;
507		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
508	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
510		590
511	use sort 'stable';	591	use sort 'stable';
512		592
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
547		627
548	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		632
553	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	634	my $pkg = shift @arg;
555		635
556	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
597	if (ref $_[0]) {	677	if (ref $_[0]) {
598	_object_attach @_;	678	_object_attach @_;
599	} else {	679	} else {
600	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
601	}	681	}
		682	_recalc_want;
602	};	683	};
603		684
604	# all those should be optimised	685	# all those should be optimised
605	sub cf::attachable::detach {	686	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
610	reattach ($obj);	691	reattach ($obj);
611	} else {	692	} else {
612	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
613	}	694	}
		695	_recalc_want;
614	};	696	};
615		697
616	sub cf::attachable::attached {	698	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
618		700
…		…
741	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
742		824
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
747	close $fh;	829	close $fh;
748		830
749	if (@$objs) {	831	if (@$objs) {
750	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) {
751	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
754	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	837	close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
757	}	839	}
758	} else {	840	} else {
759	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
791	or return;	873	or return;
792	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
793	}	875	}
794		876
795	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
797	return ($data, $av);	879	return ($data, $av);
798	}	880	}
799		881
800	#############################################################################	882	#############################################################################
801	# command handling &c	883	# command handling &c
…		…
861		943
862	cf::override;	944	cf::override;
863	},	945	},
864	);	946	);
865		947
866	sub load_extension {
867	my ($path) = @_;
868
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
870	my $base = $1;
871	my $pkg = $1;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}
894	die $@;
895	}
896
897	push @EXTS, $pkg;
898	}
899
900	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
901	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	953	next unless -r $path;
903	eval {	954
904	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }
		973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $ext{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "extension disabled.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	die $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
905	1	1011	}
906	} or warn "$ext not loaded: $@";	1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
907	}	1017	};
908	}	1018	}
909		1019
910	#############################################################################	1020	#############################################################################
911		1021
912	=head2 CORE EXTENSIONS	1022	=head2 CORE EXTENSIONS
…		…
928	Returns the given player object, loading it if necessary (might block).	1038	Returns the given player object, loading it if necessary (might block).
929		1039
930	=cut	1040	=cut
931		1041
932	sub playerdir($) {	1042	sub playerdir($) {
933	cf::localdir	1043	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1045	}
939		1046
940	sub path($) {	1047	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1049
943	(playerdir $login) . "/$login.pl"	1050	(playerdir $login) . "/playerdata"
944	}	1051	}
945		1052
946	sub find_active($) {	1053	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1054	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1055	and $cf::PLAYER{$_[0]}->active
…		…
951		1058
952	sub exists($) {	1059	sub exists($) {
953	my ($login) = @_;	1060	my ($login) = @_;
954		1061
955	$cf::PLAYER{$login}	1062	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1063	or cf::sync_job { !aio_stat path $login }
957	}	1064	}
958		1065
959	sub find($) {	1066	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1067	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1068	my $login = $_[0];
962		1069
963	my $guard = cf::lock_acquire "user_find:$login";	1070	my $guard = cf::lock_acquire "user_find:$login";
964		1071
965	$cf::PLAYER{$_[0]} || do {	1072	$cf::PLAYER{$_[0]} || do {
		1073	# rename old playerfiles to new ones
		1074	#TODO: remove when no longer required
		1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1078	aio_unlink +(playerdir $login) . "/$login.pl";
		1079
966	my $pl = load_pl path $login	1080	my $pl = load_pl path $login
967	or return;	1081	or return;
968	$cf::PLAYER{$login} = $pl	1082	$cf::PLAYER{$login} = $pl
969	}	1083	}
970	}	1084	}
…		…
1007		1121
1008	=cut	1122	=cut
1009		1123
1010	sub quit_character {	1124	sub quit_character {
1011	my ($pl) = @_;	1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
1012		1128
1013	$pl->{deny_save} = 1;	1129	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
1015		1131
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1021	my $path = playerdir $pl;	1137	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1138	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1139	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1140	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	1141	$pl->destroy;
		1142
		1143	my $prefix = qr<^~\Q$name\E/>;
		1144
		1145	# nuke player maps
		1146	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1147
1026	IO::AIO::aio_rmtree $temp;	1148	IO::AIO::aio_rmtree $temp;
		1149	}
		1150
		1151	=item $pl->kick
		1152
		1153	Kicks a player out of the game. This destroys the connection.
		1154
		1155	=cut
		1156
		1157	sub kick {
		1158	my ($pl, $kicker) = @_;
		1159
		1160	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1161	$pl->killer ("kicked");
		1162	$pl->ns->destroy;
1027	}	1163	}
1028		1164
1029	=item cf::player::list_logins	1165	=item cf::player::list_logins
1030		1166
1031	Returns am arrayref of all valid playernames in the system, can take a	1167	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1168	while and may block, so not sync_job-capable, ever.
1033		1169
1034	=cut	1170	=cut
1035		1171
1036	sub list_logins {	1172	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1173	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1174	or return [];
1039		1175
1040	my @logins;	1176	my @logins;
1041		1177
1042	for my $login (@$dirs) {	1178	for my $login (@$dirs) {
…		…
1059	=cut	1195	=cut
1060		1196
1061	sub maps($) {	1197	sub maps($) {
1062	my ($pl) = @_;	1198	my ($pl) = @_;
1063		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
		1201
1064	my $files = aio_readdir playerdir $pl	1202	my $files = aio_readdir playerdir $pl
1065	or return;	1203	or return;
1066		1204
1067	my @paths;	1205	my @paths;
1068		1206
1069	for (@$files) {	1207	for (@$files) {
1070	utf8::decode $_;	1208	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1209	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1210	next unless /^$PATH_SEP/o;
1073		1211
1074	s/\.map$//;	1212	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1213	}
1077		1214
1078	\@paths	1215	\@paths
1079	}	1216	}
1080		1217
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1218	=item $player->ext_reply ($msgid, %msg)
1082		1219
1083	Sends an ext reply to the player.	1220	Sends an ext reply to the player.
1084		1221
1085	=cut	1222	=cut
1086		1223
1087	sub ext_reply($$$%) {	1224	sub ext_reply($$%) {
1088	my ($self, $id, %msg) = @_;	1225	my ($self, $id, %msg) = @_;
1089		1226
1090	$msg{msgid} = $id;	1227	$msg{msgid} = $id;
1091		1228
1092	$self->send ("ext " . cf::to_json \%msg);	1229	$self->send ("ext " . cf::to_json \%msg);
1093	}	1230	}
1094		1231
1095	package cf;	1232	=item $player->ext_event ($type, %msg)
		1233
		1234	Sends an ext event to the client.
		1235
		1236	=cut
		1237
		1238	sub ext_event($$%) {
		1239	my ($self, $type, %msg) = @_;
		1240
		1241	$self->ns->ext_event ($type, %msg);
		1242	}
		1243
		1244	=head3 cf::region
		1245
		1246	=over 4
		1247
		1248	=cut
		1249
		1250	package cf::region;
		1251
		1252	=item cf::region::find_by_path $path
		1253
		1254	Tries to decuce the probable region for a map knowing only its path.
		1255
		1256	=cut
		1257
		1258	sub find_by_path($) {
		1259	my ($path) = @_;
		1260
		1261	my ($match, $specificity);
		1262
		1263	for my $region (list) {
		1264	if ($region->match && $path =~ $region->match) {
		1265	($match, $specificity) = ($region, $region->specificity)
		1266	if $region->specificity > $specificity;
		1267	}
		1268	}
		1269
		1270	$match
		1271	}
1096		1272
1097	=back	1273	=back
1098
1099		1274
1100	=head3 cf::map	1275	=head3 cf::map
1101		1276
1102	=over 4	1277	=over 4
1103		1278
…		…
1107		1282
1108	use Fcntl;	1283	use Fcntl;
1109	use Coro::AIO;	1284	use Coro::AIO;
1110		1285
1111	use overload	1286	use overload
1112	'""' => \&as_string;	1287	'""' => \&as_string,
		1288	fallback => 1;
1113		1289
1114	our $MAX_RESET = 3600;	1290	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1291	our $DEFAULT_RESET = 3000;
1116		1292
1117	sub generate_random_map {	1293	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1294	my ($self, $rmp) = @_;
1119
1120	# mit "rum" bekleckern, nicht	1295	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1296	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1307	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1308	)
1134	}	1309	}
1135		1310
		1311	=item cf::map->register ($regex, $prio)
		1312
		1313	Register a handler for the map path matching the given regex at the
		1314	givne priority (higher is better, built-in handlers have priority 0, the
		1315	default).
		1316
		1317	=cut
		1318
1136	sub register {	1319	sub register {
1137	my (undef, $regex) = @_;	1320	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1321	my $pkg = caller;
1139		1322
1140	no strict;	1323	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1324	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1325
1143	$EXT_MAP{$pkg} = qr<$regex>;	1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1327	}
1145		1328
1146	# also paths starting with '/'	1329	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1331
		1332	sub thawer_merge {
		1333	my ($self, $merge) = @_;
		1334
		1335	# we have to keep some variables in memory intact
		1336	local $self->{path};
		1337	local $self->{load_path};
		1338
		1339	$self->SUPER::thawer_merge ($merge);
		1340	}
1148		1341
1149	sub normalise {	1342	sub normalise {
1150	my ($path, $base) = @_;	1343	my ($path, $base) = @_;
		1344
		1345	$path = "$path"; # make sure its a string
		1346
		1347	$path =~ s/\.map$//;
1151		1348
1152	# map plan:	1349	# map plan:
1153	#	1350	#
1154	# /! non-realised random map exit (special hack!)	1351	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1352	# {... are special paths that are not being touched
…		…
1183		1380
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1381	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1382
1186	$path = normalise $path, $base;	1383	$path = normalise $path, $base;
1187		1384
1188	for my $pkg (keys %EXT_MAP) {	1385	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1386	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1387	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1388	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1389	$self->init; # pass $1 etc.
1193	return $self;	1390	return $self;
1194	}	1391	}
1195	}	1392	}
1196		1393
1197	Carp::carp "unable to resolve path '$path'.";	1394	Carp::carp "unable to resolve path '$path' (base '$base').";
1198	()	1395	()
1199	}	1396	}
1200		1397
1201	sub init {	1398	sub init {
1202	my ($self) = @_;	1399	my ($self) = @_;
…		…
1217		1414
1218	# the original (read-only) location	1415	# the original (read-only) location
1219	sub load_path {	1416	sub load_path {
1220	my ($self) = @_;	1417	my ($self) = @_;
1221		1418
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1419	"$MAPDIR/$self->{path}.map"
1223	}	1420	}
1224		1421
1225	# the temporary/swap location	1422	# the temporary/swap location
1226	sub save_path {	1423	sub save_path {
1227	my ($self) = @_;	1424	my ($self) = @_;
1228		1425
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1427	"$TMPDIR/$path.map"
1231	}	1428	}
1232		1429
1233	# the unique path, undef == no special unique path	1430	# the unique path, undef == no special unique path
1234	sub uniq_path {	1431	sub uniq_path {
1235	my ($self) = @_;	1432	my ($self) = @_;
1236		1433
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1435	"$UNIQUEDIR/$path"
1239	}	1436	}
1240		1437
1241	# and all this just because we cannot iterate over	1438	# and all this just because we cannot iterate over
1242	# all maps in C++...	1439	# all maps in C++...
1243	sub change_all_map_light {	1440	sub change_all_map_light {
…		…
1245		1442
1246	$_->change_map_light ($change)	1443	$_->change_map_light ($change)
1247	for grep $_->outdoor, values %cf::MAP;	1444	for grep $_->outdoor, values %cf::MAP;
1248	}	1445	}
1249		1446
		1447	sub decay_objects {
		1448	my ($self) = @_;
		1449
		1450	return if $self->{deny_reset};
		1451
		1452	$self->do_decay_objects;
		1453	}
		1454
1250	sub unlink_save {	1455	sub unlink_save {
1251	my ($self) = @_;	1456	my ($self) = @_;
1252		1457
1253	utf8::encode (my $save = $self->save_path);	1458	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1459	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1461	}
1257		1462
1258	sub load_header_from($) {	1463	sub load_header_from($) {
1259	my ($self, $path) = @_;	1464	my ($self, $path) = @_;
1260		1465
1261	utf8::encode $path;	1466	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1467	#aio_open $path, O_RDONLY, 0
1263	or return;	1468	# or return;
1264		1469
1265	$self->_load_header ($path)	1470	$self->_load_header ($path)
1266	or return;	1471	or return;
1267		1472
1268	$self->{load_path} = $path;	1473	$self->{load_path} = $path;
1269		1474
1270	1	1475	1
1271	}	1476	}
1272		1477
1273	sub load_orig {	1478	sub load_header_orig {
1274	my ($self) = @_;	1479	my ($self) = @_;
1275		1480
1276	$self->load_header_from ($self->load_path)	1481	$self->load_header_from ($self->load_path)
1277	}	1482	}
1278		1483
1279	sub load_temp {	1484	sub load_header_temp {
1280	my ($self) = @_;	1485	my ($self) = @_;
1281		1486
1282	$self->load_header_from ($self->save_path)	1487	$self->load_header_from ($self->save_path)
		1488	}
		1489
		1490	sub prepare_temp {
		1491	my ($self) = @_;
		1492
		1493	$self->last_access ((delete $self->{last_access})
		1494	|| $cf::RUNTIME); #d#
		1495	# safety
		1496	$self->{instantiate_time} = $cf::RUNTIME
		1497	if $self->{instantiate_time} > $cf::RUNTIME;
		1498	}
		1499
		1500	sub prepare_orig {
		1501	my ($self) = @_;
		1502
		1503	$self->{load_original} = 1;
		1504	$self->{instantiate_time} = $cf::RUNTIME;
		1505	$self->last_access ($cf::RUNTIME);
		1506	$self->instantiate;
1283	}	1507	}
1284		1508
1285	sub load_header {	1509	sub load_header {
1286	my ($self) = @_;	1510	my ($self) = @_;
1287		1511
1288	if ($self->load_temp) {	1512	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1513	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1514	} else {
1295	$self->load_orig	1515	$self->load_header_orig
1296	or return;	1516	or return;
1297		1517	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1518	}
		1519
		1520	$self->{deny_reset} = 1
		1521	if $self->no_reset;
		1522
		1523	$self->default_region (cf::region::find_by_path $self->{path})
		1524	unless $self->default_region;
1303		1525
1304	1	1526	1
1305	}	1527	}
1306		1528
1307	sub find;	1529	sub find;
…		…
1320	$map->{last_save} = $cf::RUNTIME;	1542	$map->{last_save} = $cf::RUNTIME;
1321		1543
1322	$map->load_header	1544	$map->load_header
1323	or return;	1545	or return;
1324		1546
1325	if ($map->should_reset) {	1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1548	# doing this can freeze the server in a sync job, obviously
		1549	#$cf::WAIT_FOR_TICK->wait;
1326	$map->reset;	1550	$map->reset;
1327	undef $guard;	1551	undef $guard;
1328	$map = find $path	1552	return find $path;
1329	or return;
1330	}	1553	}
1331		1554
1332	$cf::MAP{$path} = $map	1555	$cf::MAP{$path} = $map
1333	}	1556	}
1334	}	1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
1335		1561
1336	sub load {	1562	sub load {
1337	my ($self) = @_;	1563	my ($self) = @_;
1338		1564
		1565	local $self->{deny_reset} = 1; # loading can take a long time
		1566
1339	my $path = $self->{path};	1567	my $path = $self->{path};
		1568
		1569	{
1340	my $guard = cf::lock_acquire "map_load:$path";	1570	my $guard = cf::lock_acquire "map_load:$path";
1341		1571
1342	return if $self->in_memory != cf::MAP_SWAPPED;	1572	return if $self->in_memory != cf::MAP_SWAPPED;
1343		1573
1344	$self->in_memory (cf::MAP_LOADING);	1574	$self->in_memory (cf::MAP_LOADING);
1345		1575
1346	$self->alloc;	1576	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)
1348	or return;
1349		1577
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1578	$self->pre_load;
1351	if delete $self->{load_original};
1352
1353	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {
1356	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);
1358	}
1359	}
1360
1361	Coro::cede;
1362
1363	# now do the right thing for maps
1364	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;	1579	Coro::cede;
1371	$self->set_darkness_map;	1580
		1581	$self->_load_objects ($self->{load_path}, 1)
		1582	or return;
		1583
		1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1585	if delete $self->{load_original};
		1586
		1587	if (my $uniq = $self->uniq_path) {
		1588	utf8::encode $uniq;
		1589	if (aio_open $uniq, O_RDONLY, 0) {
		1590	$self->clear_unique_items;
		1591	$self->_load_objects ($uniq, 0);
		1592	}
		1593	}
		1594
		1595	Coro::cede;
		1596	# now do the right thing for maps
		1597	$self->link_multipart_objects;
1372	$self->difficulty ($self->estimate_difficulty)	1598	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	1599	unless $self->difficulty;
1374	Coro::cede;	1600	Coro::cede;
		1601
		1602	unless ($self->{deny_activate}) {
		1603	$self->decay_objects;
		1604	$self->fix_auto_apply;
		1605	$self->update_buttons;
		1606	Coro::cede;
		1607	$self->set_darkness_map;
		1608	Coro::cede;
1375	$self->activate;	1609	$self->activate;
1376	}	1610	}
1377		1611
1378	$self->in_memory (cf::MAP_IN_MEMORY);	1612	$self->in_memory (cf::MAP_IN_MEMORY);
		1613	}
		1614
		1615	$self->post_load;
1379	}	1616	}
1380		1617
1381	sub customise_for {	1618	sub customise_for {
1382	my ($self, $ob) = @_;	1619	my ($self, $ob) = @_;
1383		1620
1384	return find "~" . $ob->name . "/" . $self->{path}	1621	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	1622	if $self->per_player;
		1623
		1624	# return find "?party/" . $ob->name . "/" . $self->{path}
		1625	# if $self->per_party;
1386		1626
1387	$self	1627	$self
1388	}	1628	}
1389		1629
1390	# find and load all maps in the 3x3 area around a map	1630	# find and load all maps in the 3x3 area around a map
…		…
1422		1662
1423	cf::sync_job { $map->load };	1663	cf::sync_job { $map->load };
1424	}	1664	}
1425		1665
1426	our %MAP_PREFETCH;	1666	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	1667	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		1668
1440	sub find_async {	1669	sub find_async {
1441	my ($path, $origin) = @_;	1670	my ($path, $origin) = @_;
1442		1671
1443	$path = normalise $path, $origin && $origin->{path};	1672	$path = normalise $path, $origin && $origin->{path};
1444		1673
1445	if (my $map = $cf::MAP{$path}) {	1674	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447	}	1676	}
1448		1677
1449	$MAP_PREFETCH{$path} = 0;	1678	undef $MAP_PREFETCH{$path};
		1679	$MAP_PREFETCHER ||= cf::async {
		1680	while (%MAP_PREFETCH) {
		1681	for my $path (keys %MAP_PREFETCH) {
		1682	my $map = find $path
		1683	or next;
		1684	$map->load;
		1685
		1686	delete $MAP_PREFETCH{$path};
		1687	}
		1688	}
		1689	undef $MAP_PREFETCHER;
		1690	};
1450	$MAP_PREFETCHER->ready;	1691	$MAP_PREFETCHER->prio (6);
1451		1692
1452	()	1693	()
1453	}	1694	}
1454		1695
1455	sub save {	1696	sub save {
…		…
1500		1741
1501	sub reset_at {	1742	sub reset_at {
1502	my ($self) = @_;	1743	my ($self) = @_;
1503		1744
1504	# TODO: safety, remove and allow resettable per-player maps	1745	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	1746	return 1e99 if $self->{deny_reset};
1507		1747
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		1750
…		…
1515	my ($self) = @_;	1755	my ($self) = @_;
1516		1756
1517	$self->reset_at <= $cf::RUNTIME	1757	$self->reset_at <= $cf::RUNTIME
1518	}	1758	}
1519		1759
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	1760	sub reset {
1535	my ($self) = @_;	1761	my ($self) = @_;
1536		1762
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		1764
1539	return if $self->players;	1765	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		1766
1542	warn "resetting map ", $self->path;#d#	1767	warn "resetting map ", $self->path;
		1768
		1769	$self->in_memory (cf::MAP_SWAPPED);
		1770
		1771	# need to save uniques path
		1772	unless ($self->{deny_save}) {
		1773	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1774
		1775	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1776	if $uniq;
		1777	}
1543		1778
1544	delete $cf::MAP{$self->path};	1779	delete $cf::MAP{$self->path};
1545		1780
1546	$self->in_memory (cf::MAP_SWAPPED);
1547	$self->clear;	1781	$self->clear;
1548		1782
1549	$_->clear_links_to ($self) for values %cf::MAP;	1783	$_->clear_links_to ($self) for values %cf::MAP;
1550		1784
1551	$self->unlink_save;	1785	$self->unlink_save;
…		…
1555	my $nuke_counter = "aaaa";	1789	my $nuke_counter = "aaaa";
1556		1790
1557	sub nuke {	1791	sub nuke {
1558	my ($self) = @_;	1792	my ($self) = @_;
1559		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	1800	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	1801	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
1563	$self->reset; # polite request, might not happen	1806	$self->reset; # polite request, might not happen
		1807	}
		1808
		1809	=item $maps = cf::map::tmp_maps
		1810
		1811	Returns an arrayref with all map paths of currently instantiated and saved
		1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
		1817	[
		1818	map {
		1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
		1825	}
		1826
		1827	=item $maps = cf::map::random_maps
		1828
		1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
		1831
		1832	=cut
		1833
		1834	sub random_maps() {
		1835	[
		1836	map {
		1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
1564	}	1843	}
1565		1844
1566	=item cf::map::unique_maps	1845	=item cf::map::unique_maps
1567		1846
1568	Returns an arrayref of paths of all shared maps that have	1847	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	1848	instantiated unique items. May block.
1570		1849
1571	=cut	1850	=cut
1572		1851
1573	sub unique_maps() {	1852	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1853	[
1575	or return;	1854	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	1855	utf8::decode $_;
1581	next if /\.pst$/;
1582	next unless /^$PATH_SEP/o;
1583
1584	s/\.map$//;	1856	/\.map$/
1585	push @paths, $_;	1857	? normalise $_
		1858	: ()
		1859	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	1860	]
1587
1588	\@paths
1589	}	1861	}
1590		1862
1591	package cf;	1863	package cf;
1592		1864
1593	=back	1865	=back
…		…
1684	=cut	1956	=cut
1685		1957
1686	sub link_map {	1958	sub link_map {
1687	unless ($LINK_MAP) {	1959	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	1960	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1961	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	1962	$LINK_MAP->load;
1691	}	1963	}
1692		1964
1693	$LINK_MAP	1965	$LINK_MAP
1694	}	1966	}
…		…
1699	$self->deactivate_recursive;	1971	$self->deactivate_recursive;
1700		1972
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		1974
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	1976	if $self->map && $self->map->{path} ne "{link}";
1705		1977
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	1979	}
1708		1980
1709	sub cf::object::player::leave_link {	1981	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	1982	my ($self, $map, $x, $y) = @_;
		1983
		1984	return unless $self->contr->active;
1711		1985
1712	my $link_pos = delete $self->{_link_pos};	1986	my $link_pos = delete $self->{_link_pos};
1713		1987
1714	unless ($map) {	1988	unless ($map) {
1715	# restore original map position	1989	# restore original map position
…		…
1733	$map->load;	2007	$map->load;
1734	$map->load_diag;	2008	$map->load_diag;
1735		2009
1736	return unless $self->contr->active;	2010	return unless $self->contr->active;
1737	$self->activate_recursive;	2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2014	$self->enter_map ($map, $x, $y);
1739	}	2015	}
1740		2016
1741	cf::player->attach (
1742	on_logout => sub {
1743	my ($pl) = @_;
1744
1745	# abort map switching before logout
1746	if ($pl->ob->{_link_pos}) {
1747	cf::sync_job {
1748	$pl->ob->leave_link
1749	};
1750	}
1751	},
1752	on_login => sub {
1753	my ($pl) = @_;
1754
1755	# try to abort aborted map switching on player login :)
1756	# should happen only on crashes
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772
1773	=item $player_object->goto ($path, $x, $y)	2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1774		2018
		2019	Moves the player to the given map-path and coordinates by first freezing
		2020	her, loading and preparing them map, calling the provided $check callback
		2021	that has to return the map if sucecssful, and then unfreezes the player on
		2022	the new (success) or old (failed) map position.
		2023
1775	=cut	2024	=cut
		2025
		2026	our $GOTOGEN;
1776		2027
1777	sub cf::object::player::goto {	2028	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2029	my ($self, $path, $x, $y, $check) = @_;
		2030
		2031	# do generation counting so two concurrent goto's will be executed in-order
		2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2033
1780	$self->enter_link;	2034	$self->enter_link;
1781		2035
1782	(async {	2036	(async {
		2037	my $map = eval {
1783	my $map = cf::map::find $path;	2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2041	$map = $map->customise_for ($self);
1785		2042	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2043	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
1790		2046
		2047	$map
		2048	};
		2049
		2050	if ($@) {
		2051	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2052	LOG llevError | logBacktrace, Carp::longmess $@;
		2053	}
		2054
		2055	if ($gen == $self->{_goto_generation}) {
		2056	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2057	$self->leave_link ($map, $x, $y);
		2058	}
1792	})->prio (1);	2059	})->prio (1);
1793	}	2060	}
1794		2061
1795	=item $player_object->enter_exit ($exit_object)	2062	=item $player_object->enter_exit ($exit_object)
1796		2063
…		…
1798		2065
1799	sub parse_random_map_params {	2066	sub parse_random_map_params {
1800	my ($spec) = @_;	2067	my ($spec) = @_;
1801		2068
1802	my $rmp = { # defaults	2069	my $rmp = { # defaults
1803	xsize => 10,	2070	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
1805	};	2074	};
1806		2075
1807	for (split /\n/, $spec) {	2076	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2077	my ($k, $v) = split /\s+/, $_, 2;
1809		2078
…		…
1813	$rmp	2082	$rmp
1814	}	2083	}
1815		2084
1816	sub prepare_random_map {	2085	sub prepare_random_map {
1817	my ($exit) = @_;	2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
1818		2089
1819	# all this does is basically replace the /! path by	2090	# all this does is basically replace the /! path by
1820	# a new random map path (?random/...) with a seed	2091	# a new random map path (?random/...) with a seed
1821	# that depends on the exit object	2092	# that depends on the exit object
1822		2093
1823	my $rmp = parse_random_map_params $exit->msg;	2094	my $rmp = parse_random_map_params $exit->msg;
1824		2095
1825	if ($exit->map) {	2096	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2097	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2098	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2099	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2100	$rmp->{origin_y} = $exit->y;
1830	}	2101	}
1831		2102
1832	$rmp->{random_seed} ||= $exit->random_seed;	2103	$rmp->{random_seed} ||= $exit->random_seed;
1833		2104
1834	my $data = cf::to_json $rmp;	2105	my $data = cf::to_json $rmp;
1835	my $md5 = Digest::MD5::md5_hex $data;	2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
1836		2108
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2110	aio_write $fh, 0, (length $data), $data, 0;
		2111	undef $fh;
		2112	aio_rename "$meta~", $meta;
1839		2113
1840	$exit->slaying ("?random/$md5");	2114	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2115	$exit->msg (undef);
1842	}	2116	}
1843	}	2117	}
1844		2118
1845	sub cf::object::player::enter_exit {	2119	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2120	my ($self, $exit) = @_;
1847		2121
1848	return unless $self->type == cf::PLAYER;	2122	return unless $self->type == cf::PLAYER;
		2123
		2124	if ($exit->slaying eq "/!") {
		2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2126	# the problem is that $exit might not survive long enough
		2127	# so it needs to be done right now, right here
		2128	cf::sync_job { prepare_random_map $exit };
		2129	}
		2130
		2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2132	my $hp = $exit->stats->hp;
		2133	my $sp = $exit->stats->sp;
1849		2134
1850	$self->enter_link;	2135	$self->enter_link;
1851		2136
1852	(async {	2137	(async {
1853	$self->deactivate_recursive; # just to be sure	2138	$self->deactivate_recursive; # just to be sure
1854	unless (eval {	2139	unless (eval {
1855	prepare_random_map $exit	2140	$self->goto ($slaying, $hp, $sp);
1856	if $exit->slaying eq "/!";
1857
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1860		2141
1861	1;	2142	1;
1862	}) {	2143	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2144	$self->message ("Something went wrong deep within the crossfire server. "
1864	. "I'll try to bring you back to the map you were before. "	2145	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2146	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2147	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2148
1868	warn "ERROR in enter_exit: $@";	2149	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2150	$self->leave_link;
1870	}	2151	}
1871	})->prio (1);	2152	})->prio (1);
…		…
1884		2165
1885	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
1887		2168
1888	utf8::encode $text;	2169	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2171	}
1891		2172
		2173	=item $client->ext_event ($type, %msg)
		2174
		2175	Sends an exti event to the client.
		2176
		2177	=cut
		2178
		2179	sub cf::client::ext_event($$%) {
		2180	my ($self, $type, %msg) = @_;
		2181
		2182	$msg{msgtype} = "event_$type";
		2183	$self->send_packet ("ext " . cf::to_json \%msg);
		2184	}
1892		2185
1893	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
1894		2187
1895	Queues a query to the client, calling the given callback with	2188	Queues a query to the client, calling the given callback with
1896	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1925	# get handled first	2218	# get handled first
1926	my $queue = delete $ns->{query_queue}	2219	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2220	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2221
1929	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2224
1931	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
1932		2226
1933	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2228	if (@$queue) {
…		…
1992		2286
1993	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
1994		2288
1995	=pod	2289	=pod
1996		2290
1997	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
1998		2292
1999	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
2000	cf::object::player player	2294	cf::object::player player
2001	cf::player peaceful	2295	cf::player peaceful
2002	cf::map trigger	2296	cf::map trigger
…		…
2087	#############################################################################	2381	#############################################################################
2088		2382
2089	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
2090		2384
2091	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
2092	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2093	excludes objects.	2387	convert to/from binary).
2094		2388
2095	The parameter C<$family> should best start with the name of the extension	2389	The parameter C<$family> should best start with the name of the extension
2096	using it, it should be unique.	2390	using it, it should be unique.
2097		2391
2098	=over 4	2392	=over 4
2099		2393
2100	=item $hashref = cf::db_get $family
2101
2102	Return a hashref for use by the extension C<$family>, which can be
2103	modified. After modifications, you have to call C<cf::db_dirty> or
2104	C<cf::db_sync>.
2105
2106	=item $value = cf::db_get $family => $key	2394	=item $value = cf::db_get $family => $key
2107		2395
2108	Returns a single value from the database	2396	Returns a single value from the database.
2109
2110	=item cf::db_put $family => $hashref
2111
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114		2397
2115	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
2116		2399
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	Stores the given C<$value> in the family.
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127		2401
2128	=cut	2402	=cut
2129		2403
2130	our $DB;	2404	our $DB;
2131		2405
2132	{	2406	sub db_init {
2133	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
2134		2409
2135	sub db_load() {	2410	cf::sync_job {
2136	$DB = stat $path ? Storable::retrieve $path : { };	2411	eval {
2137	}	2412	$DB->set_flags (BDB::CHKSUM);
2138		2413
2139	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2140		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2141	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
2142	waitpid $pid, 0 if $pid;	2417	};
2143	if (0 == ($pid = fork)) {	2418	cf::cleanup "db_open(db): $@" if $@;
2144	$DB->{_meta}{version} = 1;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}	2419	};
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});	2420	}
		2421	}
2161		2422
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}
2166
2167	sub db_get($;$) {	2423	sub db_get($$) {
2168	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
2169	? $DB->{$_[0]}{$_[1]}
2170	: ($DB->{$_[0]} ||= { })
2171	}
2172		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
2173	sub db_put($$;$) {	2434	sub db_put($$$) {
2174	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
2175	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2176	} else {	2437	}
2177	$DB->{$_[0]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181		2438
2182	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
2183	prio => 10000,	2440
2184	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
2185	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($id, $src, $processversion, $process) = @_;
		2450
		2451	my $meta =
		2452	join "\x00",
		2453	$processversion,
		2454	map {
		2455	aio_stat $_
		2456	and Carp::croak "$_: $!";
		2457
		2458	($_, (stat _)[7,9])
		2459	} @$src;
		2460
		2461	my $dbmeta = db_get cache => "$id/meta";
		2462	if ($dbmeta ne $meta) {
		2463	# changed, we may need to process
		2464
		2465	my @data;
		2466	my $md5;
		2467
		2468	for (0 .. $#$src) {
		2469	0 <= aio_load $src->[$_], $data[$_]
		2470	or Carp::croak "$src->[$_]: $!";
2186	},	2471	}
2187	);	2472
		2473	# if processing is expensive, check
		2474	# checksum first
		2475	if (1) {
		2476	$md5 =
		2477	join "\x00",
		2478	$processversion,
		2479	map {
		2480	Coro::cede;
		2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2482	} 0.. $#$src;
		2483
		2484
		2485	my $dbmd5 = db_get cache => "$id/md5";
		2486	if ($dbmd5 eq $md5) {
		2487	db_put cache => "$id/meta", $meta;
		2488
		2489	return db_get cache => "$id/data";
		2490	}
		2491	}
		2492
		2493	my $t1 = Time::HiRes::time;
		2494	my $data = $process->(\@data);
		2495	my $t2 = Time::HiRes::time;
		2496
		2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2498
		2499	db_put cache => "$id/data", $data;
		2500	db_put cache => "$id/md5" , $md5;
		2501	db_put cache => "$id/meta", $meta;
		2502
		2503	return $data;
		2504	}
		2505
		2506	db_get cache => "$id/data"
		2507	}
		2508
		2509	=item fork_call { }, $args
		2510
		2511	Executes the given code block with the given arguments in a seperate
		2512	process, returning the results. Everything must be serialisable with
		2513	Coro::Storable. May, of course, block. Note that the executed sub may
		2514	never block itself or use any form of Event handling.
		2515
		2516	=cut
		2517
		2518	sub fork_call(&@) {
		2519	my ($cb, @args) = @_;
		2520
		2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2522	# or die "socketpair: $!";
		2523	pipe my $fh1, my $fh2
		2524	or die "pipe: $!";
		2525
		2526	if (my $pid = fork) {
		2527	close $fh2;
		2528
		2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2530	$res = Coro::Storable::thaw $res;
		2531
		2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2533
		2534	die $$res unless "ARRAY" eq ref $res;
		2535
		2536	return wantarray ? @$res : $res->[-1];
		2537	} else {
		2538	reset_signals;
		2539	local $SIG{__WARN__};
		2540	local $SIG{__DIE__};
		2541	eval {
		2542	close $fh1;
		2543
		2544	my @res = eval { $cb->(@args) };
		2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2546	};
		2547
		2548	warn $@ if $@;
		2549	_exit 0;
		2550	}
2188	}	2551	}
2189		2552
2190	#############################################################################	2553	#############################################################################
2191	# the server's main()	2554	# the server's init and main functions
		2555
		2556	sub load_facedata($) {
		2557	my ($path) = @_;
		2558
		2559	warn "loading facedata from $path\n";
		2560
		2561	my $facedata;
		2562	0 < aio_load $path, $facedata
		2563	or die "$path: $!";
		2564
		2565	$facedata = Coro::Storable::thaw $facedata;
		2566
		2567	$facedata->{version} == 2
		2568	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2569
		2570	{
		2571	my $faces = $facedata->{faceinfo};
		2572
		2573	while (my ($face, $info) = each %$faces) {
		2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2578	Coro::cede;
		2579	}
		2580
		2581	while (my ($face, $info) = each %$faces) {
		2582	next unless $info->{smooth};
		2583	my $idx = cf::face::find $face
		2584	or next;
		2585	if (my $smooth = cf::face::find $info->{smooth}) {
		2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2587	} else {
		2588	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2589	}
		2590	Coro::cede;
		2591	}
		2592	}
		2593
		2594	{
		2595	my $anims = $facedata->{animinfo};
		2596
		2597	while (my ($anim, $info) = each %$anims) {
		2598	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2599	Coro::cede;
		2600	}
		2601
		2602	cf::anim::invalidate_all; # d'oh
		2603	}
		2604
		2605	1
		2606	}
		2607
		2608	sub reload_regions {
		2609	load_resource_file "$MAPDIR/regions"
		2610	or die "unable to load regions file\n";
		2611	}
		2612
		2613	sub reload_facedata {
		2614	load_facedata "$DATADIR/facedata"
		2615	or die "unable to load facedata\n";
		2616	}
		2617
		2618	sub reload_archetypes {
		2619	load_resource_file "$DATADIR/archetypes"
		2620	or die "unable to load archetypes\n";
		2621	}
		2622
		2623	sub reload_treasures {
		2624	load_resource_file "$DATADIR/treasures"
		2625	or die "unable to load treasurelists\n";
		2626	}
		2627
		2628	sub reload_resources {
		2629	warn "reloading resource files...\n";
		2630
		2631	reload_regions;
		2632	reload_facedata;
		2633	#reload_archetypes;#d#
		2634	reload_archetypes;
		2635	reload_treasures;
		2636
		2637	warn "finished reloading resource files\n";
		2638	}
		2639
		2640	sub init {
		2641	reload_resources;
		2642	}
2192		2643
2193	sub cfg_load {	2644	sub cfg_load {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	2646	or return;
2196		2647
2197	local $/;	2648	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
2199		2650
…		…
2213		2664
2214	sub main {	2665	sub main {
2215	# we must not ever block the main coroutine	2666	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	2667	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2669	(async {
2218	async { Event::one_event };	2670	Event::one_event;
		2671	})->prio (Coro::PRIO_MAX);
2219	};	2672	};
2220		2673
2221	cfg_load;	2674	cfg_load;
2222	db_load;	2675	db_init;
2223	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
2224	Event::loop;	2679	Event::loop;
2225	}	2680	}
2226		2681
2227	#############################################################################	2682	#############################################################################
2228	# initialisation and cleanup	2683	# initialisation and cleanup
2229		2684
2230	# install some emergency cleanup handlers	2685	# install some emergency cleanup handlers
2231	BEGIN {	2686	BEGIN {
2232	for my $signal (qw(INT HUP TERM)) {	2687	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	2688	Event->signal (
		2689	reentrant => 0,
2234	data => WF_AUTOCANCEL,	2690	data => WF_AUTOCANCEL,
2235	signal => $signal,	2691	signal => $signal,
		2692	prio => 0,
2236	cb => sub {	2693	cb => sub {
2237	cf::cleanup "SIG$signal";	2694	cf::cleanup "SIG$signal";
2238	},	2695	},
2239	);	2696	);
2240	}	2697	}
2241	}	2698	}
…		…
2262	my $map = $cf::MAP{$path} or next;	2719	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	2720	$map->valid or next;
2264	$map->save;	2721	$map->save;
2265	}	2722	}
2266	warn "end emergency map save\n";	2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
2267	};	2728	};
2268		2729
2269	warn "leave emergency perl save\n";	2730	warn "leave emergency perl save\n";
2270	}	2731	}
2271		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2272	sub reload() {	2740	sub do_reload_perl() {
2273	# can/must only be called in main	2741	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
2276	return;	2744	return;
2277	}	2745	}
2278		2746
2279	warn "reloading...";	2747	warn "reloading...";
2280		2748
2281	warn "freezing server";	2749	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2283	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2284		2755
2285	warn "sync database to disk";	2756	warn "syncing database to disk";
2286	cf::db_sync;	2757	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		2758
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2291		2760
2292	warn "cancel all watchers";	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2293	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2295	}	2764	}
2296		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
2297	warn "cancel all extension coros";	2777	warn "cancelling all extension coros";
2298	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	2779	%EXT_CORO = ();
2300		2780
2301	warn "remove commands";	2781	warn "removing commands";
2302	%COMMAND = ();	2782	%COMMAND = ();
2303		2783
2304	warn "remove ext commands";	2784	warn "removing ext commands";
2305	%EXTCMD = ();	2785	%EXTCMD = ();
2306		2786
2307	warn "unload/nuke all extensions";	2787	warn "unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	2788	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	2789	warn "... unloading $pkg";
2310		2790
2311	if (my $cb = $pkg->can ("unload")) {	2791	if (my $cb = $pkg->can ("unload")) {
2312	eval {	2792	eval {
…		…
2317		2797
2318	warn "... nuking $pkg";	2798	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;	2799	Symbol::delete_package $pkg;
2320	}	2800	}
2321		2801
2322	warn "unload all perl modules loaded from $LIBDIR";	2802	warn "unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		2805
2326	warn "removing <$k>";	2806	warn "... unloading $k";
2327	delete $INC{$k};	2807	delete $INC{$k};
2328		2808
2329	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
2331		2811
…		…
2334	}	2814	}
2335		2815
2336	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
2337	}	2817	}
2338		2818
2339	warn "get rid of safe::, as good as possible";	2819	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		2822
2343	warn "unload cf.pm \"a bit\"";	2823	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2345		2826
2346	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2347	# and global variables created in xs	2828	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2349		2830
		2831	warn "unload completed, starting to reload now";
		2832
2350	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
2351	require cf;	2834	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		2836
2354	warn "load config and database again";	2837	warn "loading config and database again";
2355	cf::cfg_load;	2838	cf::cfg_load;
2356	cf::db_load;
2357		2839
2358	warn "load extensions";	2840	warn "loading extensions";
2359	cf::load_extensions;	2841	cf::load_extensions;
2360		2842
2361	warn "reattach attachments to objects/players";	2843	warn "reattaching attachments to objects/players";
2362	_global_reattach;	2844	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	2845	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
2365	};	2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2366		2849
2367	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
2368	warn $@;	2854	warn $@;
2369	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2370	exit 1;	2856	exit 1;
2371	}	2857	};
2372		2858
2373	warn "reloaded";	2859	warn "reloaded";
2374	};	2860	};
2375		2861
		2862	our $RELOAD_WATCHER; # used only during reload
		2863
		2864	sub reload_perl() {
		2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
		2876	);
		2877	}
		2878
2376	register_command "reload" => sub {	2879	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2378		2881
2379	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
2383	}	2885	}
2384	};	2886	};
2385		2887
2386	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2387		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2388	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2389	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
2390	prio => 0,	2918	prio => 0,
2391	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
2393	cb => sub {	2921	cb => sub {
		2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
2394	$NOW = Event::time;	2928	$NOW = $tick_start = Event::time;
2395		2929
2396	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2397	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2399		2957
2400	$WAIT_FOR_TICK->broadcast;	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
2402		2977
2403	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2405		2980
2406	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2408	},	2990	},
2409	);	2991	);
2410		2992
		2993	{
		2994	BDB::max_poll_time $TICK * 0.1;
		2995	$BDB_POLL_WATCHER = Event->io (
		2996	reentrant => 0,
		2997	fd => BDB::poll_fileno,
		2998	poll => 'r',
		2999	prio => 0,
		3000	data => WF_AUTOCANCEL,
		3001	cb => \&BDB::poll_cb,
		3002	);
		3003	BDB::min_parallel 8;
		3004
		3005	BDB::set_sync_prepare {
		3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
		3039	};
		3040	}
		3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
2411	IO::AIO::max_poll_time $TICK * 0.2;	3047	IO::AIO::max_poll_time $TICK * 0.1;
2412
2413	$AIO_POLL_WATCHER = Event->io (	3048	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,	3049	reentrant => 0,
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420
2421	$WRITE_RUNTIME_WATCHER = Event->timer (
2422	data => WF_AUTOCANCEL,	3050	data => WF_AUTOCANCEL,
2423	after => 0,	3051	fd => IO::AIO::poll_fileno,
2424	interval => 10,	3052	poll => 'r',
2425	cb => sub {	3053	prio => 6,
2426	(Coro::unblock_sub {	3054	cb => \&IO::AIO::poll_cb,
2427	write_runtime	3055	);
2428	or warn "ERROR: unable to write runtime file: $!";	3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
2429	})->();	3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
2430	},	3093	}
2431	);	3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2432		3098
2433	END { cf::emergency_save }	3099	END { cf::emergency_save }
2434		3100
2435	1	3101	1
2436		3102

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