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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC vs.
Revision 1.279 by root, Mon Jun 11 22:16:53 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
…		…
683	# object support	765	# object support
684		766
685	sub reattach {	767	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		772
689	my $registry = $obj->registry;	773	my $registry = $obj->registry;
690		774
691	@$registry = ();	775	@$registry = ();
692		776
…		…
739	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
740		824
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
745	close $fh;	829	close $fh;
746		830
747	if (@$objs) {	831	if (@$objs) {
748	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) {
749	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
752	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	837	close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
755	}	839	}
756	} else {	840	} else {
757	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
789	or return;	873	or return;
790	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
791	}	875	}
792		876
793	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
795	return ($data, $av);	879	return ($data, $av);
796	}	880	}
797		881
798	#############################################################################	882	#############################################################################
799	# command handling &c	883	# command handling &c
…		…
859		943
860	cf::override;	944	cf::override;
861	},	945	},
862	);	946	);
863		947
864	sub load_extension {
865	my ($path) = @_;
866
867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
868	my $base = $1;
869	my $pkg = $1;
870	$pkg =~ s/[^[:word:]]/_/g;
871	$pkg = "ext::$pkg";
872
873	warn "... loading '$path' into '$pkg'\n";
874
875	open my $fh, "<:utf8", $path
876	or die "$path: $!";
877
878	my $source =
879	"package $pkg; use strict; use utf8;\n"
880	. "#line 1 \"$path\"\n{\n"
881	. (do { local $/; <$fh> })
882	. "\n};\n1";
883
884	unless (eval $source) {
885	my $msg = $@ ? "$path: $@\n"
886	: "extension disabled.\n";
887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
888	warn $@;
889	warn "mandatory extension failed to load, exiting.\n";
890	exit 1;
891	}
892	die $@;
893	}
894
895	push @EXTS, $pkg;
896	}
897
898	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
899	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
900	next unless -r $ext;	953	next unless -r $path;
901	eval {	954
902	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)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		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*/, $v->{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	: "$v->{base}: extension inactive.\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	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
903	1	1012	}
904	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
905	}	1018	};
906	}	1019	}
907		1020
908	#############################################################################	1021	#############################################################################
909		1022
910	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
…		…
926	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
927		1040
928	=cut	1041	=cut
929		1042
930	sub playerdir($) {	1043	sub playerdir($) {
931	cf::localdir	1044	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1046	}
937		1047
938	sub path($) {	1048	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1050
941	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
942	}	1052	}
943		1053
944	sub find_active($) {	1054	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
949		1059
950	sub exists($) {	1060	sub exists($) {
951	my ($login) = @_;	1061	my ($login) = @_;
952		1062
953	$cf::PLAYER{$login}	1063	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1064	or cf::sync_job { !aio_stat path $login }
955	}	1065	}
956		1066
957	sub find($) {	1067	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1068	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1069	my $login = $_[0];
960		1070
961	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
962		1072
963	$cf::PLAYER{$_[0]} || do {	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
964	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
965	or return;	1082	or return;
966	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
967	}	1084	}
968	}	1085	}
…		…
1005		1122
1006	=cut	1123	=cut
1007		1124
1008	sub quit_character {	1125	sub quit_character {
1009	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1010		1129
1011	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1012	$pl->password ("*"); # this should lock out the player until we nuked the dir	1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
1013		1132
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1019	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1140	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1023	$pl->destroy;	1142	$pl->destroy;
		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
1024	IO::AIO::aio_rmtree $temp;	1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
1025	}	1164	}
1026		1165
1027	=item cf::player::list_logins	1166	=item cf::player::list_logins
1028		1167
1029	Returns am arrayref of all valid playernames in the system, can take a	1168	Returns am arrayref of all valid playernames in the system, can take a
1030	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1031		1170
1032	=cut	1171	=cut
1033		1172
1034	sub list_logins {	1173	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1175	or return [];
1037		1176
1038	my @logins;	1177	my @logins;
1039		1178
1040	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1057	=cut	1196	=cut
1058		1197
1059	sub maps($) {	1198	sub maps($) {
1060	my ($pl) = @_;	1199	my ($pl) = @_;
1061		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
		1202
1062	my $files = aio_readdir playerdir $pl	1203	my $files = aio_readdir playerdir $pl
1063	or return;	1204	or return;
1064		1205
1065	my @paths;	1206	my @paths;
1066		1207
1067	for (@$files) {	1208	for (@$files) {
1068	utf8::decode $_;	1209	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1210	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1211	next unless /^$PATH_SEP/o;
1071		1212
1072	s/\.map$//;	1213	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1214	}
1075		1215
1076	\@paths	1216	\@paths
1077	}	1217	}
1078		1218
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1080		1220
1081	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1082		1222
1083	=cut	1223	=cut
1084		1224
1085	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1086	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1087		1227
1088	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1089		1229
1090	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1091	}	1231	}
1092		1232
1093	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1094		1273
1095	=back	1274	=back
1096
1097		1275
1098	=head3 cf::map	1276	=head3 cf::map
1099		1277
1100	=over 4	1278	=over 4
1101		1279
…		…
1105		1283
1106	use Fcntl;	1284	use Fcntl;
1107	use Coro::AIO;	1285	use Coro::AIO;
1108		1286
1109	use overload	1287	use overload
1110	'""' => \&as_string;	1288	'""' => \&as_string,
		1289	fallback => 1;
1111		1290
1112	our $MAX_RESET = 3600;	1291	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1292	our $DEFAULT_RESET = 3000;
1114		1293
1115	sub generate_random_map {	1294	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1297	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1308	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1309	)
1132	}	1310	}
1133		1311
		1312	=item cf::map->register ($regex, $prio)
		1313
		1314	Register a handler for the map path matching the given regex at the
		1315	givne priority (higher is better, built-in handlers have priority 0, the
		1316	default).
		1317
		1318	=cut
		1319
1134	sub register {	1320	sub register {
1135	my (undef, $regex) = @_;	1321	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1322	my $pkg = caller;
1137		1323
1138	no strict;	1324	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1325	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1326
1141	$EXT_MAP{$pkg} = qr<$regex>;	1327	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1328	}
1143		1329
1144	# also paths starting with '/'	1330	# also paths starting with '/'
1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1331	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1332
		1333	sub thawer_merge {
		1334	my ($self, $merge) = @_;
		1335
		1336	# we have to keep some variables in memory intact
		1337	local $self->{path};
		1338	local $self->{load_path};
		1339
		1340	$self->SUPER::thawer_merge ($merge);
		1341	}
1146		1342
1147	sub normalise {	1343	sub normalise {
1148	my ($path, $base) = @_;	1344	my ($path, $base) = @_;
		1345
		1346	$path = "$path"; # make sure its a string
		1347
		1348	$path =~ s/\.map$//;
1149		1349
1150	# map plan:	1350	# map plan:
1151	#	1351	#
1152	# /! non-realised random map exit (special hack!)	1352	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1353	# {... are special paths that are not being touched
…		…
1181		1381
1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1382	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183		1383
1184	$path = normalise $path, $base;	1384	$path = normalise $path, $base;
1185		1385
1186	for my $pkg (keys %EXT_MAP) {	1386	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1387	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1388	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1389	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1390	$self->init; # pass $1 etc.
1191	return $self;	1391	return $self;
1192	}	1392	}
1193	}	1393	}
1194		1394
1195	Carp::carp "unable to resolve path '$path'.";	1395	Carp::carp "unable to resolve path '$path' (base '$base').";
1196	()	1396	()
1197	}	1397	}
1198		1398
1199	sub init {	1399	sub init {
1200	my ($self) = @_;	1400	my ($self) = @_;
…		…
1215		1415
1216	# the original (read-only) location	1416	# the original (read-only) location
1217	sub load_path {	1417	sub load_path {
1218	my ($self) = @_;	1418	my ($self) = @_;
1219		1419
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1420	"$MAPDIR/$self->{path}.map"
1221	}	1421	}
1222		1422
1223	# the temporary/swap location	1423	# the temporary/swap location
1224	sub save_path {	1424	sub save_path {
1225	my ($self) = @_;	1425	my ($self) = @_;
1226		1426
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1428	"$TMPDIR/$path.map"
1229	}	1429	}
1230		1430
1231	# the unique path, undef == no special unique path	1431	# the unique path, undef == no special unique path
1232	sub uniq_path {	1432	sub uniq_path {
1233	my ($self) = @_;	1433	my ($self) = @_;
1234		1434
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1436	"$UNIQUEDIR/$path"
1237	}	1437	}
1238		1438
1239	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1240	# all maps in C++...	1440	# all maps in C++...
1241	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1243		1443
1244	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1245	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1246	}	1446	}
1247		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
1248	sub unlink_save {	1456	sub unlink_save {
1249	my ($self) = @_;	1457	my ($self) = @_;
1250		1458
1251	utf8::encode (my $save = $self->save_path);	1459	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1462	}
1255		1463
1256	sub load_header_from($) {	1464	sub load_header_from($) {
1257	my ($self, $path) = @_;	1465	my ($self, $path) = @_;
1258		1466
1259	utf8::encode $path;	1467	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
1261	or return;	1469	# or return;
1262		1470
1263	$self->_load_header ($path)	1471	$self->_load_header ($path)
1264	or return;	1472	or return;
1265		1473
1266	$self->{load_path} = $path;	1474	$self->{load_path} = $path;
1267		1475
1268	1	1476	1
1269	}	1477	}
1270		1478
1271	sub load_orig {	1479	sub load_header_orig {
1272	my ($self) = @_;	1480	my ($self) = @_;
1273		1481
1274	$self->load_header_from ($self->load_path)	1482	$self->load_header_from ($self->load_path)
1275	}	1483	}
1276		1484
1277	sub load_temp {	1485	sub load_header_temp {
1278	my ($self) = @_;	1486	my ($self) = @_;
1279		1487
1280	$self->load_header_from ($self->save_path)	1488	$self->load_header_from ($self->save_path)
		1489	}
		1490
		1491	sub prepare_temp {
		1492	my ($self) = @_;
		1493
		1494	$self->last_access ((delete $self->{last_access})
		1495	|| $cf::RUNTIME); #d#
		1496	# safety
		1497	$self->{instantiate_time} = $cf::RUNTIME
		1498	if $self->{instantiate_time} > $cf::RUNTIME;
		1499	}
		1500
		1501	sub prepare_orig {
		1502	my ($self) = @_;
		1503
		1504	$self->{load_original} = 1;
		1505	$self->{instantiate_time} = $cf::RUNTIME;
		1506	$self->last_access ($cf::RUNTIME);
		1507	$self->instantiate;
1281	}	1508	}
1282		1509
1283	sub load_header {	1510	sub load_header {
1284	my ($self) = @_;	1511	my ($self) = @_;
1285		1512
1286	if ($self->load_temp) {	1513	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	1514	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	1515	} else {
1293	$self->load_orig	1516	$self->load_header_orig
1294	or return;	1517	or return;
1295		1518	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	1519	}
		1520
		1521	$self->{deny_reset} = 1
		1522	if $self->no_reset;
		1523
		1524	$self->default_region (cf::region::find_by_path $self->{path})
		1525	unless $self->default_region;
1301		1526
1302	1	1527	1
1303	}	1528	}
1304		1529
1305	sub find;	1530	sub find;
…		…
1318	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1319		1544
1320	$map->load_header	1545	$map->load_header
1321	or return;	1546	or return;
1322		1547
1323	if ($map->should_reset) {	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1549	# doing this can freeze the server in a sync job, obviously
		1550	#$cf::WAIT_FOR_TICK->wait;
1324	$map->reset;	1551	$map->reset;
1325	undef $guard;	1552	undef $guard;
1326	$map = find $path	1553	return find $path;
1327	or return;
1328	}	1554	}
1329		1555
1330	$cf::MAP{$path} = $map	1556	$cf::MAP{$path} = $map
1331	}	1557	}
1332	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1333		1562
1334	sub load {	1563	sub load {
1335	my ($self) = @_;	1564	my ($self) = @_;
1336		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1337	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1338	my $guard = cf::lock_acquire "map_load:$path";	1571	my $guard = cf::lock_acquire "map_load:$path";
1339		1572
1340	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1341		1574
1342	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1343		1576
1344	$self->alloc;	1577	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)
1346	or return;
1347		1578
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1579	$self->pre_load;
1349	if delete $self->{load_original};
1350
1351	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {
1354	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);
1356	}
1357	}
1358
1359	Coro::cede;
1360
1361	# now do the right thing for maps
1362	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;	1580	Coro::cede;
1369	$self->set_darkness_map;	1581
		1582	$self->_load_objects ($self->{load_path}, 1)
		1583	or return;
		1584
		1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1586	if delete $self->{load_original};
		1587
		1588	if (my $uniq = $self->uniq_path) {
		1589	utf8::encode $uniq;
		1590	if (aio_open $uniq, O_RDONLY, 0) {
		1591	$self->clear_unique_items;
		1592	$self->_load_objects ($uniq, 0);
		1593	}
		1594	}
		1595
		1596	Coro::cede;
		1597	# now do the right thing for maps
		1598	$self->link_multipart_objects;
1370	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	1600	unless $self->difficulty;
1372	Coro::cede;	1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1373	$self->activate;	1610	$self->activate;
1374	}	1611	}
1375		1612
1376	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
		1614	}
		1615
		1616	$self->post_load;
1377	}	1617	}
1378		1618
1379	sub customise_for {	1619	sub customise_for {
1380	my ($self, $ob) = @_;	1620	my ($self, $ob) = @_;
1381		1621
1382	return find "~" . $ob->name . "/" . $self->{path}	1622	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
1384		1627
1385	$self	1628	$self
1386	}	1629	}
1387		1630
1388	# find and load all maps in the 3x3 area around a map	1631	# find and load all maps in the 3x3 area around a map
…		…
1420		1663
1421	cf::sync_job { $map->load };	1664	cf::sync_job { $map->load };
1422	}	1665	}
1423		1666
1424	our %MAP_PREFETCH;	1667	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	1668	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		1669
1438	sub find_async {	1670	sub find_async {
1439	my ($path, $origin) = @_;	1671	my ($path, $origin) = @_;
1440		1672
1441	$path = normalise $path, $origin && $origin->{path};	1673	$path = normalise $path, $origin && $origin->{path};
1442		1674
1443	if (my $map = $cf::MAP{$path}) {	1675	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445	}	1677	}
1446		1678
1447	$MAP_PREFETCH{$path} = 0;	1679	undef $MAP_PREFETCH{$path};
		1680	$MAP_PREFETCHER ||= cf::async {
		1681	while (%MAP_PREFETCH) {
		1682	for my $path (keys %MAP_PREFETCH) {
		1683	my $map = find $path
		1684	or next;
		1685	$map->load;
		1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
		1691	};
1448	$MAP_PREFETCHER->ready;	1692	$MAP_PREFETCHER->prio (6);
1449		1693
1450	()	1694	()
1451	}	1695	}
1452		1696
1453	sub save {	1697	sub save {
…		…
1498		1742
1499	sub reset_at {	1743	sub reset_at {
1500	my ($self) = @_;	1744	my ($self) = @_;
1501		1745
1502	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1505		1748
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		1751
…		…
1513	my ($self) = @_;	1756	my ($self) = @_;
1514		1757
1515	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1516	}	1759	}
1517		1760
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	1761	sub reset {
1533	my ($self) = @_;	1762	my ($self) = @_;
1534		1763
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		1765
1537	return if $self->players;	1766	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		1767
1540	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1541		1779
1542	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
1543		1781
1544	$self->in_memory (cf::MAP_SWAPPED);
1545	$self->clear;	1782	$self->clear;
1546		1783
1547	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1548		1785
1549	$self->unlink_save;	1786	$self->unlink_save;
…		…
1553	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1554		1791
1555	sub nuke {	1792	sub nuke {
1556	my ($self) = @_;	1793	my ($self) = @_;
1557		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1561	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
		1808	}
		1809
		1810	=item $maps = cf::map::tmp_maps
		1811
		1812	Returns an arrayref with all map paths of currently instantiated and saved
		1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
		1818	[
		1819	map {
		1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
		1826	}
		1827
		1828	=item $maps = cf::map::random_maps
		1829
		1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
		1832
		1833	=cut
		1834
		1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
1562	}	1844	}
1563		1845
1564	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1565		1847
1566	Returns an arrayref of paths of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1567	instantiated unique items. May block.	1849	instantiated unique items. May block.
1568		1850
1569	=cut	1851	=cut
1570		1852
1571	sub unique_maps() {	1853	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1573	or return;	1855	map {
1574
1575	my @paths;
1576
1577	for (@$files) {
1578	utf8::decode $_;	1856	utf8::decode $_;
1579	next if /\.pst$/;
1580	next unless /^$PATH_SEP/o;
1581
1582	s/\.map$//;	1857	/\.map$/
1583	push @paths, $_;	1858	? normalise $_
		1859	: ()
		1860	} @{ aio_readdir $UNIQUEDIR or [] }
1584	}	1861	]
1585
1586	\@paths
1587	}	1862	}
1588		1863
1589	package cf;	1864	package cf;
1590		1865
1591	=back	1866	=back
…		…
1682	=cut	1957	=cut
1683		1958
1684	sub link_map {	1959	sub link_map {
1685	unless ($LINK_MAP) {	1960	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	1961	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1962	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	1963	$LINK_MAP->load;
1689	}	1964	}
1690		1965
1691	$LINK_MAP	1966	$LINK_MAP
1692	}	1967	}
…		…
1697	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1698		1973
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		1975
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1703		1978
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	1980	}
1706		1981
1707	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1709		1986
1710	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1711		1988
1712	unless ($map) {	1989	unless ($map) {
1713	# restore original map position	1990	# restore original map position
…		…
1731	$map->load;	2008	$map->load;
1732	$map->load_diag;	2009	$map->load_diag;
1733		2010
1734	return unless $self->contr->active;	2011	return unless $self->contr->active;
1735	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1737	}	2016	}
1738		2017
1739	cf::player->attach (
1740	on_logout => sub {
1741	my ($pl) = @_;
1742
1743	# abort map switching before logout
1744	if ($pl->ob->{_link_pos}) {
1745	cf::sync_job {
1746	$pl->ob->leave_link
1747	};
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752
1753	# try to abort aborted map switching on player login :)
1754	# should happen only on crashes
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770
1771	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1772		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1773	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1774		2028
1775	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1776	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
		2031
		2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1777		2034
1778	$self->enter_link;	2035	$self->enter_link;
1779		2036
1780	(async {	2037	(async {
		2038	my $map = eval {
1781	my $map = cf::map::find $path;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
1783		2043	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	2044	} else {
1785	# if $map;
1786
1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
1788		2047
		2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
		2054	}
		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1789	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1790	})->prio (1);	2060	})->prio (1);
1791	}	2061	}
1792		2062
1793	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1794		2064
…		…
1796		2066
1797	sub parse_random_map_params {	2067	sub parse_random_map_params {
1798	my ($spec) = @_;	2068	my ($spec) = @_;
1799		2069
1800	my $rmp = { # defaults	2070	my $rmp = { # defaults
1801	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1803	};	2075	};
1804		2076
1805	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1807		2079
…		…
1811	$rmp	2083	$rmp
1812	}	2084	}
1813		2085
1814	sub prepare_random_map {	2086	sub prepare_random_map {
1815	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1816		2090
1817	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1818	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1819	# that depends on the exit object	2093	# that depends on the exit object
1820		2094
1821	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1822		2096
1823	if ($exit->map) {	2097	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1828	}	2102	}
1829		2103
1830	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1831		2105
1832	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1833	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1834		2109
1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
		2112	undef $fh;
		2113	aio_rename "$meta~", $meta;
1837		2114
1838	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2116	$exit->msg (undef);
1840	}	2117	}
1841	}	2118	}
1842		2119
1843	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1845		2122
1846	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
		2124
		2125	if ($exit->slaying eq "/!") {
		2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
		2129	cf::sync_job { prepare_random_map $exit };
		2130	}
		2131
		2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2133	my $hp = $exit->stats->hp;
		2134	my $sp = $exit->stats->sp;
1847		2135
1848	$self->enter_link;	2136	$self->enter_link;
1849		2137
1850	(async {	2138	(async {
1851	$self->deactivate_recursive; # just to be sure	2139	$self->deactivate_recursive; # just to be sure
1852	unless (eval {	2140	unless (eval {
1853	prepare_random_map $exit	2141	$self->goto ($slaying, $hp, $sp);
1854	if $exit->slaying eq "/!";
1855
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858		2142
1859	1;	2143	1;
1860	}) {	2144	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1862	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1863	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2149
1866	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2151	$self->leave_link;
1868	}	2152	}
1869	})->prio (1);	2153	})->prio (1);
…		…
1882		2166
1883	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1885		2169
1886	utf8::encode $text;	2170	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2172	}
1889		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1890		2186
1891	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1892		2188
1893	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1894	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1923	# get handled first	2219	# get handled first
1924	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1925	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1926		2222
1927	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		2225
1929	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1930		2227
1931	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	2229	if (@$queue) {
…		…
1990		2287
1991	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
1992		2289
1993	=pod	2290	=pod
1994		2291
1995	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
1996		2293
1997	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
1998	cf::object::player player	2295	cf::object::player player
1999	cf::player peaceful	2296	cf::player peaceful
2000	cf::map trigger	2297	cf::map trigger
…		…
2085	#############################################################################	2382	#############################################################################
2086		2383
2087	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2088		2385
2089	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2090	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2091	excludes objects.	2388	convert to/from binary).
2092		2389
2093	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
2094	using it, it should be unique.	2391	using it, it should be unique.
2095		2392
2096	=over 4	2393	=over 4
2097		2394
2098	=item $hashref = cf::db_get $family
2099
2100	Return a hashref for use by the extension C<$family>, which can be
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103
2104	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
2105		2396
2106	Returns a single value from the database	2397	Returns a single value from the database.
2107
2108	=item cf::db_put $family => $hashref
2109
2110	Stores the given family hashref into the database. Updates are delayed, if
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112		2398
2113	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2114		2400
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125		2402
2126	=cut	2403	=cut
2127		2404
2128	our $DB;	2405	our $DB;
2129		2406
2130	{	2407	sub db_init {
2131	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2132		2410
2133	sub db_load() {	2411	cf::sync_job {
2134	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2135	}	2413	$DB->set_flags (BDB::CHKSUM);
2136		2414
2137	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2138		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2139	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2140	waitpid $pid, 0 if $pid;	2418	};
2141	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
2142	$DB->{_meta}{version} = 1;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}	2420	};
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});	2421	}
		2422	}
2159		2423
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}
2164
2165	sub db_get($;$) {	2424	sub db_get($$) {
2166	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2171	sub db_put($$;$) {	2435	sub db_put($$$) {
2172	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2173	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2174	} else {	2438	}
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179		2439
2180	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2181	prio => 10000,	2441
2182	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2183	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
2184	},	2472	}
2185	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2186	}	2552	}
2187		2553
2188	#############################################################################	2554	#############################################################################
2189	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
2190		2644
2191	sub cfg_load {	2645	sub cfg_load {
2192	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	2647	or return;
2194		2648
2195	local $/;	2649	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2197		2651
…		…
2211		2665
2212	sub main {	2666	sub main {
2213	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2670	(async {
2216	async { Event::one_event };	2671	Event::one_event;
		2672	})->prio (Coro::PRIO_MAX);
2217	};	2673	};
2218		2674
2219	cfg_load;	2675	cfg_load;
2220	db_load;	2676	db_init;
2221	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
2222	Event::loop;	2680	Event::loop;
2223	}	2681	}
2224		2682
2225	#############################################################################	2683	#############################################################################
2226	# initialisation and cleanup	2684	# initialisation and cleanup
2227		2685
2228	# install some emergency cleanup handlers	2686	# install some emergency cleanup handlers
2229	BEGIN {	2687	BEGIN {
2230	for my $signal (qw(INT HUP TERM)) {	2688	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	2689	Event->signal (
		2690	reentrant => 0,
2232	data => WF_AUTOCANCEL,	2691	data => WF_AUTOCANCEL,
2233	signal => $signal,	2692	signal => $signal,
		2693	prio => 0,
2234	cb => sub {	2694	cb => sub {
2235	cf::cleanup "SIG$signal";	2695	cf::cleanup "SIG$signal";
2236	},	2696	},
2237	);	2697	);
2238	}	2698	}
2239	}	2699	}
…		…
2260	my $map = $cf::MAP{$path} or next;	2720	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	2721	$map->valid or next;
2262	$map->save;	2722	$map->save;
2263	}	2723	}
2264	warn "end emergency map save\n";	2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
2265	};	2729	};
2266		2730
2267	warn "leave emergency perl save\n";	2731	warn "leave emergency perl save\n";
2268	}	2732	}
2269		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2270	sub reload() {	2741	sub do_reload_perl() {
2271	# can/must only be called in main	2742	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2274	return;	2745	return;
2275	}	2746	}
2276		2747
2277	warn "reloading...";	2748	warn "reloading...";
2278		2749
2279	warn "freezing server";	2750	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2281	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2282		2756
2283	warn "sync database to disk";	2757	warn "syncing database to disk";
2284	cf::db_sync;	2758	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		2759
2287	eval {
2288	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2289		2761
2290	warn "cancel all watchers";	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2291	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2293	}	2765	}
2294		2766
		2767	warn "flushing outstanding aio requests";
		2768	for (;;) {
		2769	BDB::flush;
		2770	IO::AIO::flush;
		2771	Coro::cede;
		2772	last unless IO::AIO::nreqs || BDB::nreqs;
		2773	warn "iterate...";
		2774	}
		2775
		2776	++$RELOAD;
		2777
2295	warn "cancel all extension coros";	2778	warn "cancelling all extension coros";
2296	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();	2780	%EXT_CORO = ();
2298		2781
2299	warn "remove commands";	2782	warn "removing commands";
2300	%COMMAND = ();	2783	%COMMAND = ();
2301		2784
2302	warn "remove ext commands";	2785	warn "removing ext commands";
2303	%EXTCMD = ();	2786	%EXTCMD = ();
2304		2787
2305	warn "unload/nuke all extensions";	2788	warn "unloading/nuking all extensions";
2306	for my $pkg (@EXTS) {	2789	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";	2790	warn "... unloading $pkg";
2308		2791
2309	if (my $cb = $pkg->can ("unload")) {	2792	if (my $cb = $pkg->can ("unload")) {
2310	eval {	2793	eval {
…		…
2315		2798
2316	warn "... nuking $pkg";	2799	warn "... nuking $pkg";
2317	Symbol::delete_package $pkg;	2800	Symbol::delete_package $pkg;
2318	}	2801	}
2319		2802
2320	warn "unload all perl modules loaded from $LIBDIR";	2803	warn "unloading all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323		2806
2324	warn "removing <$k>";	2807	warn "... unloading $k";
2325	delete $INC{$k};	2808	delete $INC{$k};
2326		2809
2327	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2329		2812
…		…
2332	}	2815	}
2333		2816
2334	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2335	}	2818	}
2336		2819
2337	warn "get rid of safe::, as good as possible";	2820	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2340		2823
2341	warn "unload cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2343		2827
2344	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2345	# and global variables created in xs	2829	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2347		2831
		2832	warn "unload completed, starting to reload now";
		2833
2348	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2349	require cf;	2835	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351		2837
2352	warn "load config and database again";	2838	warn "loading config and database again";
2353	cf::cfg_load;	2839	cf::cfg_load;
2354	cf::db_load;
2355		2840
2356	warn "load extensions";	2841	warn "loading extensions";
2357	cf::load_extensions;	2842	cf::load_extensions;
2358		2843
2359	warn "reattach attachments to objects/players";	2844	warn "reattaching attachments to objects/players";
2360	_global_reattach;	2845	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	2846	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
2363	};	2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2364		2850
2365	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2366	warn $@;	2855	warn $@;
2367	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2368	exit 1;	2857	exit 1;
2369	}	2858	};
2370		2859
2371	warn "reloaded";	2860	warn "reloaded";
2372	};	2861	};
2373		2862
		2863	our $RELOAD_WATCHER; # used only during reload
		2864
		2865	sub reload_perl() {
		2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
		2868
		2869	$RELOAD_WATCHER ||= Event->timer (
		2870	reentrant => 0,
		2871	after => 0,
		2872	data => WF_AUTOCANCEL,
		2873	cb => sub {
		2874	do_reload_perl;
		2875	undef $RELOAD_WATCHER;
		2876	},
		2877	);
		2878	}
		2879
2374	register_command "reload" => sub {	2880	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2376		2882
2377	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2381	}	2886	}
2382	};	2887	};
2383		2888
2384	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2385		2890
		2891	my $bug_warning = 0;
		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2386	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2387	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2388	prio => 0,	2919	prio => 0,
2389	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2391	cb => sub {	2922	cb => sub {
		2923	if ($Coro::current != $Coro::main) {
		2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2925	unless ++$bug_warning > 10;
		2926	return;
		2927	}
		2928
2392	$NOW = Event::time;	2929	$NOW = $tick_start = Event::time;
2393		2930
2394	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2395	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2397		2958
2398	$WAIT_FOR_TICK->broadcast;	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2961	Coro::async_pool {
		2962	write_runtime
		2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
		2965	}
		2966
		2967	# my $AFTER = Event::time;
		2968	# warn $AFTER - $NOW;#d#
		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
2400		2978
2401	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2403		2981
2404	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2405	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2406	},	2991	},
2407	);	2992	);
2408		2993
		2994	{
		2995	BDB::max_poll_time $TICK * 0.1;
		2996	$BDB_POLL_WATCHER = Event->io (
		2997	reentrant => 0,
		2998	fd => BDB::poll_fileno,
		2999	poll => 'r',
		3000	prio => 0,
		3001	data => WF_AUTOCANCEL,
		3002	cb => \&BDB::poll_cb,
		3003	);
		3004	BDB::min_parallel 8;
		3005
		3006	BDB::set_sync_prepare {
		3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
		3040	};
		3041	}
		3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
2409	IO::AIO::max_poll_time $TICK * 0.2;	3048	IO::AIO::max_poll_time $TICK * 0.1;
2410
2411	$AIO_POLL_WATCHER = Event->io (	3049	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,	3050	reentrant => 0,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,	3051	data => WF_AUTOCANCEL,
2421	after => 0,	3052	fd => IO::AIO::poll_fileno,
2422	interval => 10,	3053	poll => 'r',
2423	cb => sub {	3054	prio => 6,
2424	(Coro::unblock_sub {	3055	cb => \&IO::AIO::poll_cb,
2425	write_runtime	3056	);
2426	or warn "ERROR: unable to write runtime file: $!";	3057	}
		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
2427	})->();	3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
2428	},	3094	}
2429	);	3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2430		3099
2431	END { cf::emergency_save }	3100	END { cf::emergency_save }
2432		3101
2433	1	3102	1
2434		3103

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