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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.162 by root, Thu Jan 11 00:41:08 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	76	our $NEXT_TICK;
50	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
51		82
52	our %CFG;	83	our %CFG;
53		84
54	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	86	our $RUNTIME;
56		87
57	our %PLAYER; # all users	88	our %PLAYER; # all users
58	our %MAP; # all maps	89	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		91
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
64		98
65	binmode STDOUT;	99	binmode STDOUT;
66	binmode STDERR;	100	binmode STDERR;
67		101
68	# read virtual server time, if available	102	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
73	}	107	}
74		108
75	mkdir cf::localdir;	109	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		111
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
84		115
85	#############################################################################	116	#############################################################################
86		117
87	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
88		119
…		…
95	=item $cf::RUNTIME	126	=item $cf::RUNTIME
96		127
97	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
98	every server tick.	129	every server tick.
99		130
100	=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
101		134
102	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		139
105	=item $cf::NOW	140	=item $cf::NOW
106		141
107	The time of the last (current) server tick.	142	The time of the last (current) server tick.
108		143
109	=item $cf::TICK	144	=item $cf::TICK
110		145
111	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.
112		157
113	=item %cf::CFG	158	=item %cf::CFG
114		159
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	161	from wherever your confdir points to.
117		162
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		164
120	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
121	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
122	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.
123	window of cpu time available, or simply to synchronise to the server tick.
124		168
125	=back	169	=back
126		170
127	=cut	171	=cut
128		172
129	BEGIN {	173	BEGIN {
130	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	175	my $msg = join "", @_;
132	utf8::encode $msg;
133		176
134	$msg .= "\n"	177	$msg .= "\n"
135	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
136		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
137	LOG llevError, $msg;	183	LOG llevError, $msg;
138	};	184	};
139	}	185	}
140		186
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	234	$d
189	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
190	}	236	}
191		237
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
193		239
194	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
195		241
196	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
197		243
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
206		245
207	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
208
209	=cut
210
211	sub to_json($) {
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
213	JSON::Syck::Dump $_[0]
214	}
215		247
216	=item cf::lock_wait $string	248	=item cf::lock_wait $string
217		249
218	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
219		251
…		…
225	returned.	257	returned.
226		258
227	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
229		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
230	=cut	266	=cut
231		267
232	our %LOCK;	268	our %LOCK;
233		269
234	sub lock_wait($) {	270	sub lock_wait($) {
…		…
253	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
255	}	291	}
256	}	292	}
257		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
258	sub freeze_mainloop {	300	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
260		302
261	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
262	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
263	$guard	307	$guard
264	}	308	}
265		309
266	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
288		332
289	sub sync_job(&) {	333	sub sync_job(&) {
290	my ($job) = @_;	334	my ($job) = @_;
291		335
292	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
293	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
295		341
296	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
308		354
309	while ($busy) {	355	while ($busy) {
310	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
311	}	357	}
312		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
313	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
314	} else {	367	} else {
315	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
316		369
317	$job->()	370	$job->()
…		…
337		390
338	$coro	391	$coro
339	}	392	}
340		393
341	sub write_runtime {	394	sub write_runtime {
342	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
343		405
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
345	or return;	407	or return;
346		408
		409	my $value = $cf::RUNTIME + 90 + 10;
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;	414	and return;
350		415
		416	# always fsync - this file is important
351	aio_fsync $fh	417	aio_fsync $fh
352	and return;	418	and return;
353		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
354	close $fh	423	close $fh
355	or return;	424	or return;
356		425
357	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
358	and return;	427	and return;
359		428
		429	warn "runtime file written.\n";#d#
		430
360	1	431	1
361	}	432	}
362		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
363	=back	445	=back
364		446
365	=cut	447	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522		448
523	#############################################################################	449	#############################################################################
524		450
525	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
526		452
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	579	our @CB_MAP = ();
654		580
655	my %attachment;	581	my %attachment;
656		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
657	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
659		591
660	use sort 'stable';	592	use sort 'stable';
661		593
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
696		628
697	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		633
702	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	635	my $pkg = shift @arg;
704		636
705	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
746	if (ref $_[0]) {	678	if (ref $_[0]) {
747	_object_attach @_;	679	_object_attach @_;
748	} else {	680	} else {
749	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
750	}	682	}
		683	_recalc_want;
751	};	684	};
752		685
753	# all those should be optimised	686	# all those should be optimised
754	sub cf::attachable::detach {	687	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
759	reattach ($obj);	692	reattach ($obj);
760	} else {	693	} else {
761	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
762	}	695	}
		696	_recalc_want;
763	};	697	};
764		698
765	sub cf::attachable::attached {	699	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
767		701
…		…
832	# object support	766	# object support
833		767
834	sub reattach {	768	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		773
838	my $registry = $obj->registry;	774	my $registry = $obj->registry;
839		775
840	@$registry = ();	776	@$registry = ();
841		777
…		…
888	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
889		825
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	830	close $fh;
895		831
896	if (@$objs) {	832	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	838	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
904	}	840	}
905	} else {	841	} else {
906	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
1028	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
1031	. "\n};\n1";	967	. "\n};\n1";
1032		968
1033	eval $source	969	unless (eval $source) {
1034	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
1035	: "extension disabled.\n";	971	: "extension disabled.\n";
		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
		973	warn $@;
		974	warn "mandatory extension failed to load, exiting.\n";
		975	exit 1;
		976	}
		977	die $@;
		978	}
1036		979
1037	push @EXTS, $pkg;	980	push @EXTS, $pkg;
1038	}	981	}
1039		982
1040	sub load_extensions {	983	sub load_extensions {
…		…
1046	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1047	}	990	}
1048	}	991	}
1049		992
1050	#############################################################################	993	#############################################################################
1051	# load/save/clean perl data associated with a map
1052
1053	*cf::mapsupport::on_clean = sub {
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		994
1066	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1067		996
1068	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1069		998
…		…
1082	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
1083		1012
1084	=cut	1013	=cut
1085		1014
1086	sub playerdir($) {	1015	sub playerdir($) {
1087	cf::localdir	1016	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1018	}
1093		1019
1094	sub path($) {	1020	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1022
1097	(playerdir $login) . "/$login.pl"	1023	(playerdir $login) . "/playerdata"
1098	}	1024	}
1099		1025
1100	sub find_active($) {	1026	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1027	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1028	and $cf::PLAYER{$_[0]}->active
…		…
1105		1031
1106	sub exists($) {	1032	sub exists($) {
1107	my ($login) = @_;	1033	my ($login) = @_;
1108		1034
1109	$cf::PLAYER{$login}	1035	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1036	or cf::sync_job { !aio_stat path $login }
1111	}	1037	}
1112		1038
1113	sub find($) {	1039	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1040	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1041	my $login = $_[0];
1116		1042
1117	my $guard = cf::lock_acquire "user_find:$login";	1043	my $guard = cf::lock_acquire "user_find:$login";
1118		1044
1119	$cf::PLAYER{$_[0]} || do {	1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
1120	my $pl = load_pl path $login	1053	my $pl = load_pl path $login
1121	or return;	1054	or return;
1122	$cf::PLAYER{$login} = $pl	1055	$cf::PLAYER{$login} = $pl
1123	}	1056	}
1124	}	1057	}
…		…
1161		1094
1162	=cut	1095	=cut
1163		1096
1164	sub quit_character {	1097	sub quit_character {
1165	my ($pl) = @_;	1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
1166		1101
1167	$pl->{deny_save} = 1;	1102	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1104
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1110	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1111	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1112	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1113	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
1180	IO::AIO::aio_rmtree $temp;	1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
1181	}	1136	}
1182		1137
1183	=item cf::player::list_logins	1138	=item cf::player::list_logins
1184		1139
1185	Returns am arrayref of all valid playernames in the system, can take a	1140	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1141	while and may block, so not sync_job-capable, ever.
1187		1142
1188	=cut	1143	=cut
1189		1144
1190	sub list_logins {	1145	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1146	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1147	or return [];
1193		1148
1194	my @logins;	1149	my @logins;
1195		1150
1196	for my $login (@$dirs) {	1151	for my $login (@$dirs) {
…		…
1205	\@logins	1160	\@logins
1206	}	1161	}
1207		1162
1208	=item $player->maps	1163	=item $player->maps
1209		1164
1210	Returns an arrayref of cf::path's of all maps that are private for this	1165	Returns an arrayref of map paths that are private for this
1211	player. May block.	1166	player. May block.
1212		1167
1213	=cut	1168	=cut
1214		1169
1215	sub maps($) {	1170	sub maps($) {
1216	my ($pl) = @_;	1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1174
1218	my $files = aio_readdir playerdir $pl	1175	my $files = aio_readdir playerdir $pl
1219	or return;	1176	or return;
1220		1177
1221	my @paths;	1178	my @paths;
…		…
1223	for (@$files) {	1180	for (@$files) {
1224	utf8::decode $_;	1181	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1182	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1183	next unless /^$PATH_SEP/o;
1227		1184
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1185	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1186	}
1230		1187
1231	\@paths	1188	\@paths
1232	}	1189	}
1233		1190
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1235		1192
1236	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1237		1194
1238	=cut	1195	=cut
1239		1196
1240	sub ext_reply($$$%) {	1197	sub ext_reply($$%) {
1241	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1242		1199
1243	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1244		1201
1245	$self->send ("ext " . cf::to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
1246	}	1203	}
1247		1204
1248	package cf;	1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
		1244	}
1249		1245
1250	=back	1246	=back
1251
1252		1247
1253	=head3 cf::map	1248	=head3 cf::map
1254		1249
1255	=over 4	1250	=over 4
1256		1251
…		…
1259	package cf::map;	1254	package cf::map;
1260		1255
1261	use Fcntl;	1256	use Fcntl;
1262	use Coro::AIO;	1257	use Coro::AIO;
1263		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1264	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1266		1265
1267	sub generate_random_map {	1266	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1269	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1280	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1281	)
1285	}	1282	}
1286		1283
		1284	=item cf::map->register ($regex, $prio)
		1285
		1286	Register a handler for the map path matching the given regex at the
		1287	givne priority (higher is better, built-in handlers have priority 0, the
		1288	default).
		1289
		1290	=cut
		1291
		1292	sub register {
		1293	my (undef, $regex, $prio) = @_;
		1294	my $pkg = caller;
		1295
		1296	no strict;
		1297	push @{"$pkg\::ISA"}, __PACKAGE__;
		1298
		1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1300	}
		1301
		1302	# also paths starting with '/'
		1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1304
		1305	sub thawer_merge {
		1306	my ($self, $merge) = @_;
		1307
		1308	# we have to keep some variables in memory intact
		1309	local $self->{path};
		1310	local $self->{load_path};
		1311	local $self->{deny_save};
		1312	local $self->{deny_reset};
		1313
		1314	$self->SUPER::thawer_merge ($merge);
		1315	}
		1316
		1317	sub normalise {
		1318	my ($path, $base) = @_;
		1319
		1320	$path = "$path"; # make sure its a string
		1321
		1322	$path =~ s/\.map$//;
		1323
		1324	# map plan:
		1325	#
		1326	# /! non-realised random map exit (special hack!)
		1327	# {... are special paths that are not being touched
		1328	# ?xxx/... are special absolute paths
		1329	# ?random/... random maps
		1330	# /... normal maps
		1331	# ~user/... per-player map of a specific user
		1332
		1333	$path =~ s/$PATH_SEP/\//go;
		1334
		1335	# treat it as relative path if it starts with
		1336	# something that looks reasonable
		1337	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1338	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1339
		1340	$base =~ s{[^/]+/?$}{};
		1341	$path = "$base/$path";
		1342	}
		1343
		1344	for ($path) {
		1345	redo if s{//}{/};
		1346	redo if s{/\.?/}{/};
		1347	redo if s{/[^/]+/\.\./}{/};
		1348	}
		1349
		1350	$path
		1351	}
		1352
		1353	sub new_from_path {
		1354	my (undef, $path, $base) = @_;
		1355
		1356	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1357
		1358	$path = normalise $path, $base;
		1359
		1360	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1361	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1362	my $self = bless cf::map::new, $pkg;
		1363	$self->{path} = $path; $self->path ($path);
		1364	$self->init; # pass $1 etc.
		1365	return $self;
		1366	}
		1367	}
		1368
		1369	Carp::carp "unable to resolve path '$path' (base '$base').";
		1370	()
		1371	}
		1372
		1373	sub init {
		1374	my ($self) = @_;
		1375
		1376	$self
		1377	}
		1378
		1379	sub as_string {
		1380	my ($self) = @_;
		1381
		1382	"$self->{path}"
		1383	}
		1384
		1385	# the displayed name, this is a one way mapping
		1386	sub visible_name {
		1387	&as_string
		1388	}
		1389
		1390	# the original (read-only) location
		1391	sub load_path {
		1392	my ($self) = @_;
		1393
		1394	"$MAPDIR/$self->{path}.map"
		1395	}
		1396
		1397	# the temporary/swap location
		1398	sub save_path {
		1399	my ($self) = @_;
		1400
		1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1402	"$TMPDIR/$path.map"
		1403	}
		1404
		1405	# the unique path, undef == no special unique path
		1406	sub uniq_path {
		1407	my ($self) = @_;
		1408
		1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1410	"$UNIQUEDIR/$path"
		1411	}
		1412
1287	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1288	# all maps in C++...	1414	# all maps in C++...
1289	sub change_all_map_light {	1415	sub change_all_map_light {
1290	my ($change) = @_;	1416	my ($change) = @_;
1291		1417
1292	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1294	}	1420	}
1295		1421
		1422	sub unlink_save {
		1423	my ($self) = @_;
		1424
		1425	utf8::encode (my $save = $self->save_path);
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1427	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1428	}
		1429
1296	sub load_map_header($) {	1430	sub load_header_from($) {
1297	my ($path) = @_;	1431	my ($self, $path) = @_;
1298		1432
1299	utf8::encode $path;	1433	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1301	or return;	1438	or return;
1302		1439
1303	my $map = cf::map::new	1440	$self->{load_path} = $path;
		1441
		1442	1
		1443	}
		1444
		1445	sub load_header_orig {
		1446	my ($self) = @_;
		1447
		1448	$self->load_header_from ($self->load_path)
		1449	}
		1450
		1451	sub load_header_temp {
		1452	my ($self) = @_;
		1453
		1454	$self->load_header_from ($self->save_path)
		1455	}
		1456
		1457	sub prepare_temp {
		1458	my ($self) = @_;
		1459
		1460	$self->last_access ((delete $self->{last_access})
		1461	|| $cf::RUNTIME); #d#
		1462	# safety
		1463	$self->{instantiate_time} = $cf::RUNTIME
		1464	if $self->{instantiate_time} > $cf::RUNTIME;
		1465	}
		1466
		1467	sub prepare_orig {
		1468	my ($self) = @_;
		1469
		1470	$self->{load_original} = 1;
		1471	$self->{instantiate_time} = $cf::RUNTIME;
		1472	$self->last_access ($cf::RUNTIME);
		1473	$self->instantiate;
		1474	}
		1475
		1476	sub load_header {
		1477	my ($self) = @_;
		1478
		1479	if ($self->load_header_temp) {
		1480	$self->prepare_temp;
		1481	} else {
		1482	$self->load_header_orig
1304	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1305		1486
1306	# for better error messages only, will be overwritten later	1487	$self->default_region (cf::region::find_by_path $self->{path})
1307	$map->path ($path);	1488	unless $self->default_region;
1308		1489
1309	$map->load_header ($path)	1490	1
1310	or return;
1311
1312	$map->{load_path} = $path;
1313
1314	$map
1315	}	1491	}
1316		1492
1317	sub find;	1493	sub find;
1318	sub find {	1494	sub find {
1319	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1320		1496
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1498
1326	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1327		1500
1328	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1330		1503	my $map = new_from_path cf::map $path
1331	# do it the slow way
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	1504	or return;
1345		1505
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1358		1507
1359	Coro::cede;	1508	$map->load_header
		1509	or return;
1360		1510
1361	if ($map->should_reset) {	1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1362	$map->reset;	1514	$map->reset;
1363	undef $guard;	1515	undef $guard;
1364	$map = find $path	1516	return find $path;
1365	or return;
1366	}	1517	}
1367		1518
1368	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1369	}	1520	}
1370	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1371		1525
1372	sub load {	1526	sub load {
1373	my ($self) = @_;	1527	my ($self) = @_;
1374		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1375	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1377		1535
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1379		1537
1380	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1381		1539
1382	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1383	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1384	or return;	1546	or return;
1385		1547
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1549	if delete $self->{load_original};
1388		1550
1389	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1552	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1392	$self->clear_unique_items;	1554	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1394	}	1556	}
1395	}	1557	}
1396		1558
1397	Coro::cede;	1559	Coro::cede;
1398
1399	# now do the right thing for maps	1560	# now do the right thing for maps
1400	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	1563	unless $self->difficulty;
		1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1412	$self->activate;	1573	$self->activate;
1413	}	1574	}
1414		1575
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
		1577	}
		1578
		1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
1418	}	1589	}
1419		1590
1420	# find and load all maps in the 3x3 area around a map	1591	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1592	sub load_diag {
1422	my ($map) = @_;	1593	my ($map) = @_;
…		…
1452		1623
1453	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1454	}	1625	}
1455		1626
1456	our %MAP_PREFETCH;	1627	our %MAP_PREFETCH;
1457	our $MAP_PREFETCHER = Coro::async {	1628	our $MAP_PREFETCHER = undef;
1458	while () {
1459	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH
1461	or next;
1462	my $path = delete $MAP_PREFETCH{$key};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}
1468	Coro::schedule;
1469	}
1470	};
1471		1629
1472	sub find_async {	1630	sub find_async {
1473	my ($path, $origin) = @_;	1631	my ($path, $origin) = @_;
1474		1632
1475	$path = new cf::path $path, $origin && $origin->path;	1633	$path = normalise $path, $origin && $origin->{path};
1476	my $key = $path->as_string;
1477		1634
1478	if (my $map = $cf::MAP{$key}) {	1635	if (my $map = $cf::MAP{$path}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}	1637	}
1481		1638
1482	$MAP_PREFETCH{$key} = $path;	1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
		1645	$map->load;
		1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
		1651	};
1483	$MAP_PREFETCHER->ready;	1652	$MAP_PREFETCHER->prio (6);
1484		1653
1485	()	1654	()
1486	}	1655	}
1487		1656
1488	sub save {	1657	sub save {
…		…
1492		1661
1493	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1494		1663
1495	return unless $self->dirty;	1664	return unless $self->dirty;
1496		1665
1497	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		1668
1500	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1501		1670
1502	return if $self->{deny_save};	1671	return if $self->{deny_save};
1503		1672
…		…
1506	cf::async {	1675	cf::async {
1507	$_->contr->save for $self->players;	1676	$_->contr->save for $self->players;
1508	};	1677	};
1509		1678
1510	if ($uniq) {	1679	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	1682	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	1684	}
1516	}	1685	}
1517		1686
1518	sub swap_out {	1687	sub swap_out {
1519	my ($self) = @_;	1688	my ($self) = @_;
…		…
1533		1702
1534	sub reset_at {	1703	sub reset_at {
1535	my ($self) = @_;	1704	my ($self) = @_;
1536		1705
1537	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1539	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1540		1709
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		1712
…		…
1548	my ($self) = @_;	1717	my ($self) = @_;
1549		1718
1550	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1551	}	1720	}
1552		1721
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	1722	sub reset {
1575	my ($self) = @_;	1723	my ($self) = @_;
1576		1724
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		1726
1579	return if $self->players;	1727	return if $self->players;
1580	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1581		1729
1582	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1583		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1584	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1585		1745
1586	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1587		1747
1588	$self->unlink_save;	1748	$self->unlink_save;
1589	$self->destroy;	1749	$self->destroy;
…		…
1592	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1593		1753
1594	sub nuke {	1754	sub nuke {
1595	my ($self) = @_;	1755	my ($self) = @_;
1596		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1600	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1601	}	1770	}
1602		1771
1603	sub customise_for {
1604	my ($map, $ob) = @_;
1605
1606	if ($map->per_player) {
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1608	}
1609
1610	$map
1611	}
1612
1613	=item cf::map::unique_maps	1772	=item cf::map::unique_maps
1614		1773
1615	Returns an arrayref of cf::path's of all shared maps that have	1774	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	1775	instantiated unique items. May block.
1617		1776
1618	=cut	1777	=cut
1619		1778
1620	sub unique_maps() {	1779	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1780	my $files = aio_readdir $UNIQUEDIR
1622	or return;	1781	or return;
1623		1782
1624	my @paths;	1783	my @paths;
1625		1784
1626	for (@$files) {	1785	for (@$files) {
1627	utf8::decode $_;	1786	utf8::decode $_;
1628	next if /\.pst$/;	1787	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;	1788	next unless /^$PATH_SEP/o;
1630		1789
1631	push @paths, new cf::path $_;	1790	push @paths, cf::map::normalise $_;
1632	}	1791	}
1633		1792
1634	\@paths	1793	\@paths
1635	}	1794	}
1636		1795
…		…
1711		1870
1712	=item $player_object->enter_link	1871	=item $player_object->enter_link
1713		1872
1714	Freezes the player and moves him/her to a special map (C<{link}>).	1873	Freezes the player and moves him/her to a special map (C<{link}>).
1715		1874
1716	The player should be reaosnably safe there for short amounts of time. You	1875	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1718		1877
		1878	Will never block.
		1879
1719	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1720		1881
1721	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	1885	fails, to the emergency map position.
1725		1886
1726	Might block.	1887	Might block.
1727		1888
1728	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($LINK_MAP) {
		1893	$LINK_MAP = cf::map::find "{link}"
		1894	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1895	$LINK_MAP->load;
		1896	}
		1897
		1898	$LINK_MAP
		1899	}
1729		1900
1730	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1731	my ($self) = @_;	1902	my ($self) = @_;
1732		1903
1733	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1734		1905
1735	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		1907
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	1909	if $self->map;
1739		1910
1740	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	1912	}
1742		1913
1743	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1745		1916
…		…
1767	$map->load;	1938	$map->load;
1768	$map->load_diag;	1939	$map->load_diag;
1769		1940
1770	return unless $self->contr->active;	1941	return unless $self->contr->active;
1771	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1773	}	1946	}
1774		1947
1775	cf::player->attach (	1948	cf::player->attach (
1776	on_logout => sub {	1949	on_logout => sub {
…		…
1789	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes	1963	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1793	(async {	1966	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,	1967	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "	1968	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",	1969	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);	1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
1800	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1802	})->prio (2);	1975	})->prio (2);
1803	}	1976	}
1804	},	1977	},
…		…
1809	=cut	1982	=cut
1810		1983
1811	sub cf::object::player::goto {	1984	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1813		1986
1814	$path = new cf::path $path;
1815
1816	$self->enter_link;	1987	$self->enter_link;
1817		1988
1818	(async {	1989	(async {
		1990	my $map = eval {
1819	my $map = cf::map::find $path->as_string;	1991	my $map = cf::map::find $path;
1820	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1821		1993	$map
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	1994	} or
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1826		1996
1827	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1828	})->prio (1);	1998	})->prio (1);
1829	}	1999	}
1830		2000
…		…
1834		2004
1835	sub parse_random_map_params {	2005	sub parse_random_map_params {
1836	my ($spec) = @_;	2006	my ($spec) = @_;
1837		2007
1838	my $rmp = { # defaults	2008	my $rmp = { # defaults
1839	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1841	};	2013	};
1842		2014
1843	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1845		2017
…		…
1849	$rmp	2021	$rmp
1850	}	2022	}
1851		2023
1852	sub prepare_random_map {	2024	sub prepare_random_map {
1853	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2028
1855	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2031	# that depends on the exit object
1858		2032
1859	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1860		2034
1861	if ($exit->map) {	2035	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1866	}	2040	}
1867		2041
1868	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1869		2043
1870	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1872		2047
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
		2050	undef $fh;
		2051	aio_rename "$meta~", $meta;
1875		2052
1876	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2054	$exit->msg (undef);
1878	}	2055	}
1879	}	2056	}
1880		2057
1881	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1883		2060
1884	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
		2062
		2063	if ($exit->slaying eq "/!") {
		2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2065	# the problem is that $exit might not survive long enough
		2066	# so it needs to be done right now, right here
		2067	cf::sync_job { prepare_random_map $exit };
		2068	}
		2069
		2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2071	my $hp = $exit->stats->hp;
		2072	my $sp = $exit->stats->sp;
1885		2073
1886	$self->enter_link;	2074	$self->enter_link;
1887		2075
1888	(async {	2076	(async {
1889	$self->deactivate_recursive; # just to be sure	2077	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2078	unless (eval {
1891	prepare_random_map $exit	2079	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2080
1897	1;	2081	1;
1898	}) {	2082	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2084	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2085	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2087
1904	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2089	$self->leave_link;
1906	}	2090	}
1907	})->prio (1);	2091	})->prio (1);
…		…
1920		2104
1921	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1923		2107
1924	utf8::encode $text;	2108	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2110	}
1927		2111
		2112	=item $client->ext_event ($type, %msg)
		2113
		2114	Sends an exti event to the client.
		2115
		2116	=cut
		2117
		2118	sub cf::client::ext_event($$%) {
		2119	my ($self, $type, %msg) = @_;
		2120
		2121	$msg{msgtype} = "event_$type";
		2122	$self->send_packet ("ext " . cf::to_json \%msg);
		2123	}
1928		2124
1929	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1930		2126
1931	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1961	# get handled first	2157	# get handled first
1962	my $queue = delete $ns->{query_queue}	2158	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2159	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2160
1965	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2163
1967	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1968		2165
1969	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2167	if (@$queue) {
…		…
2028		2225
2029	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
2030		2227
2031	=pod	2228	=pod
2032		2229
2033	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
2034		2231
2035	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
2036	cf::object::player player	2233	cf::object::player player
2037	cf::player peaceful	2234	cf::player peaceful
2038	cf::map trigger	2235	cf::map trigger
…		…
2123	#############################################################################	2320	#############################################################################
2124		2321
2125	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
2126		2323
2127	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
2128	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2129	excludes objects.	2326	convert to/from binary).
2130		2327
2131	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
2132	using it, it should be unique.	2329	using it, it should be unique.
2133		2330
2134	=over 4	2331	=over 4
2135		2332
2136	=item $hashref = cf::db_get $family
2137
2138	Return a hashref for use by the extension C<$family>, which can be
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141
2142	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
2143		2334
2144	Returns a single value from the database	2335	Returns a single value from the database.
2145
2146	=item cf::db_put $family => $hashref
2147
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150		2336
2151	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
2152		2338
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163		2340
2164	=cut	2341	=cut
2165		2342
2166	our $DB;	2343	our $DB;
2167		2344
2168	{	2345	sub db_init {
2169	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
2170		2348
2171	sub db_load() {	2349	cf::sync_job {
2172	$DB = stat $path ? Storable::retrieve $path : { };	2350	eval {
2173	}	2351	$DB->set_flags (BDB::CHKSUM);
2174		2352
2175	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2176		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2177	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
2178	waitpid $pid, 0 if $pid;	2356	};
2179	if (0 == ($pid = fork)) {	2357	cf::cleanup "db_open(db): $@" if $@;
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}	2358	};
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	2359	}
		2360	}
2197		2361
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {	2362	sub db_get($$) {
2204	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
2209	sub db_put($$;$) {	2373	sub db_put($$$) {
2210	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
2211	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2212	} else {	2376	}
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		2377
2218	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
2219	prio => 10000,	2379
2220	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
2221	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
2222	},	2410	}
2223	);	2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
2224	}	2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
2225		2493
2226	#############################################################################	2494	#############################################################################
2227	# the server's main()	2495	# the server's init and main functions
		2496
		2497	sub load_facedata($) {
		2498	my ($path) = @_;
		2499
		2500	warn "loading facedata from $path\n";
		2501
		2502	my $facedata;
		2503	0 < aio_load $path, $facedata
		2504	or die "$path: $!";
		2505
		2506	$facedata = Coro::Storable::thaw $facedata;
		2507
		2508	$facedata->{version} == 2
		2509	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2510
		2511	{
		2512	my $faces = $facedata->{faceinfo};
		2513
		2514	while (my ($face, $info) = each %$faces) {
		2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2519	Coro::cede;
		2520	}
		2521
		2522	while (my ($face, $info) = each %$faces) {
		2523	next unless $info->{smooth};
		2524	my $idx = cf::face::find $face
		2525	or next;
		2526	if (my $smooth = cf::face::find $info->{smooth}) {
		2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2528	} else {
		2529	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2530	}
		2531	Coro::cede;
		2532	}
		2533	}
		2534
		2535	{
		2536	my $anims = $facedata->{animinfo};
		2537
		2538	while (my ($anim, $info) = each %$anims) {
		2539	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2540	Coro::cede;
		2541	}
		2542
		2543	cf::anim::invalidate_all; # d'oh
		2544	}
		2545
		2546	1
		2547	}
		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
		2569	sub reload_resources {
		2570	warn "reloading resource files...\n";
		2571
		2572	reload_regions;
		2573	reload_facedata;
		2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
		2578	}
		2579
		2580	sub init {
		2581	reload_resources;
		2582	}
2228		2583
2229	sub cfg_load {	2584	sub cfg_load {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	2586	or return;
2232		2587
2233	local $/;	2588	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
2235		2590
…		…
2249		2604
2250	sub main {	2605	sub main {
2251	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2609	(async {
2254	async { Event::one_event };	2610	Event::one_event;
		2611	})->prio (Coro::PRIO_MAX);
2255	};	2612	};
2256		2613
2257	cfg_load;	2614	cfg_load;
2258	db_load;	2615	db_init;
2259	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
2260	Event::loop;	2619	Event::loop;
2261	}	2620	}
2262		2621
2263	#############################################################################	2622	#############################################################################
2264	# initialisation and cleanup	2623	# initialisation and cleanup
2265		2624
2266	# install some emergency cleanup handlers	2625	# install some emergency cleanup handlers
2267	BEGIN {	2626	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	2627	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	2628	Event->signal (
		2629	reentrant => 0,
2270	data => WF_AUTOCANCEL,	2630	data => WF_AUTOCANCEL,
2271	signal => $signal,	2631	signal => $signal,
		2632	prio => 0,
2272	cb => sub {	2633	cb => sub {
2273	cf::cleanup "SIG$signal";	2634	cf::cleanup "SIG$signal";
2274	},	2635	},
2275	);	2636	);
2276	}	2637	}
2277	}	2638	}
…		…
2282	warn "enter emergency perl save\n";	2643	warn "enter emergency perl save\n";
2283		2644
2284	cf::sync_job {	2645	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	2646	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	2647	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	2648	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	2649	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	2650	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	2651	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	2652	$pl->valid or next;
2292	$pl->save;	2653	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	2659	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	2660	$map->valid or next;
2300	$map->save;	2661	$map->save;
2301	}	2662	}
2302	warn "end emergency map save\n";	2663	warn "end emergency map save\n";
		2664
		2665	warn "begin emergency database checkpoint\n";
		2666	BDB::db_env_txn_checkpoint $DB_ENV;
		2667	warn "end emergency database checkpoint\n";
2303	};	2668	};
2304		2669
2305	warn "leave emergency perl save\n";	2670	warn "leave emergency perl save\n";
2306	}	2671	}
2307		2672
		2673	sub post_cleanup {
		2674	my ($make_core) = @_;
		2675
		2676	warn Carp::longmess "post_cleanup backtrace"
		2677	if $make_core;
		2678	}
		2679
2308	sub reload() {	2680	sub do_reload_perl() {
2309	# can/must only be called in main	2681	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
2312	return;	2684	return;
2313	}	2685	}
2314		2686
2315	warn "reloading...";	2687	warn "reloading...";
2316		2688
2317	warn "freezing server";	2689	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
2320		2695
2321	warn "sync database to disk";	2696	warn "syncing database to disk";
2322	cf::db_sync;	2697	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		2698
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	2699	# if anything goes wrong in here, we should simply crash as we already saved
2327		2700
2328	warn "cancel all watchers";	2701	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	2704	}
2332		2705
		2706	warn "flushing outstanding aio requests";
		2707	for (;;) {
		2708	BDB::flush;
		2709	IO::AIO::flush;
		2710	Coro::cede;
		2711	last unless IO::AIO::nreqs || BDB::nreqs;
		2712	warn "iterate...";
		2713	}
		2714
		2715	++$RELOAD;
		2716
2333	warn "cancel all extension coros";	2717	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	2719	%EXT_CORO = ();
2336		2720
2337	warn "remove commands";	2721	warn "removing commands";
2338	%COMMAND = ();	2722	%COMMAND = ();
2339		2723
2340	warn "remove ext commands";	2724	warn "removing ext commands";
2341	%EXTCMD = ();	2725	%EXTCMD = ();
2342		2726
2343	warn "unload/nuke all extensions";	2727	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	2728	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	2729	warn "... unloading $pkg";
2346		2730
2347	if (my $cb = $pkg->can ("unload")) {	2731	if (my $cb = $pkg->can ("unload")) {
2348	eval {	2732	eval {
…		…
2353		2737
2354	warn "... nuking $pkg";	2738	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	2739	Symbol::delete_package $pkg;
2356	}	2740	}
2357		2741
2358	warn "unload all perl modules loaded from $LIBDIR";	2742	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		2745
2362	warn "removing <$k>";	2746	warn "... unloading $k";
2363	delete $INC{$k};	2747	delete $INC{$k};
2364		2748
2365	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
2367		2751
…		…
2370	}	2754	}
2371		2755
2372	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
2373	}	2757	}
2374		2758
2375	warn "get rid of safe::, as good as possible";	2759	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		2762
2379	warn "unload cf.pm \"a bit\"";	2763	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2381		2766
2382	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2383	# and global variables created in xs	2768	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2385		2770
		2771	warn "unload completed, starting to reload now";
		2772
2386	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
2387	require cf;	2774	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2776
2390	warn "load config and database again";	2777	warn "loading config and database again";
2391	cf::cfg_load;	2778	cf::cfg_load;
2392	cf::db_load;
2393		2779
2394	warn "load extensions";	2780	warn "loading extensions";
2395	cf::load_extensions;	2781	cf::load_extensions;
2396		2782
2397	warn "reattach attachments to objects/players";	2783	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2784	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	2785	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2786	reattach $_ for values %MAP;
2401	};	2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
2402		2789
2403	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
2404	warn $@;	2794	warn $@;
2405	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
2406	exit 1;	2796	exit 1;
2407	}	2797	};
2408		2798
2409	warn "reloaded";	2799	warn "reloaded";
2410	};	2800	};
2411		2801
2412	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
2413		2803
2414	unless ($LINK_MAP) {	2804	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
2416		2807
2417	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	2809	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2427	cb => sub {	2812	cb => sub {
2428	$_[0]->w->cancel;	2813	do_reload_perl;
2429		2814	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	2815	},
2448		2816	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	2817	}
2454		2818
2455	register_command "reload" => sub {	2819	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2457		2821
2458	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2462	}	2825	}
2463	};	2826	};
2464		2827
2465	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
		2829
		2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2466		2852
2467	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2469	prio => 0,	2856	prio => 0,
2470	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2472	cb => sub {	2859	cb => sub {
		2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2473	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2474	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2475	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2476		2872
2477	$WAIT_FOR_TICK->broadcast;	2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2875	Coro::async_pool {
		2876	write_runtime
		2877	or warn "ERROR: unable to write runtime file: $!";
		2878	};
		2879	}
		2880
		2881	# my $AFTER = Event::time;
		2882	# warn $AFTER - $NOW;#d#
		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
2479		2892
2480	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2482		2895
2483	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2484	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2485	},	2905	},
2486	);	2906	);
2487		2907
		2908	{
2488	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2489		2910	$BDB_POLL_WATCHER = Event->io (
2490	Event->io (	2911	reentrant => 0,
2491	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2492	poll => 'r',	2913	poll => 'r',
2493	prio => 5,	2914	prio => 0,
2494	data => WF_AUTOCANCEL,
2495	cb => \&IO::AIO::poll_cb,
2496	);
2497
2498	Event->timer (
2499	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2500	after => 0,	2916	cb => \&BDB::poll_cb,
2501	interval => 10,	2917	);
2502	cb => sub {	2918	BDB::min_parallel 8;
2503	(Coro::unblock_sub {	2919
2504	write_runtime	2920	BDB::set_sync_prepare {
2505	or warn "ERROR: unable to write runtime file: $!";	2921	my $status;
		2922	my $current = $Coro::current;
		2923	(
		2924	sub {
		2925	$status = $!;
		2926	$current->ready; undef $current;
		2927	},
		2928	sub {
		2929	Coro::schedule while defined $current;
		2930	$! = $status;
		2931	},
		2932	)
		2933	};
		2934
		2935	unless ($DB_ENV) {
		2936	$DB_ENV = BDB::db_env_create;
		2937
		2938	cf::sync_job {
		2939	eval {
		2940	BDB::db_env_open
		2941	$DB_ENV,
		2942	$BDBDIR,
		2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2945	0666;
		2946
		2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2948
		2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2950	$DB_ENV->set_lk_detect;
		2951	};
		2952
		2953	cf::cleanup "db_env_open(db): $@" if $@;
2506	})->();	2954	};
2507	},	2955	}
2508	);	2956	}
		2957
		2958	{
		2959	IO::AIO::min_parallel 8;
		2960
		2961	undef $Coro::AIO::WATCHER;
		2962	IO::AIO::max_poll_time $TICK * 0.1;
		2963	$AIO_POLL_WATCHER = Event->io (
		2964	reentrant => 0,
		2965	data => WF_AUTOCANCEL,
		2966	fd => IO::AIO::poll_fileno,
		2967	poll => 'r',
		2968	prio => 6,
		2969	cb => \&IO::AIO::poll_cb,
		2970	);
		2971	}
		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
2509		3013
2510	END { cf::emergency_save }	3014	END { cf::emergency_save }
2511		3015
2512	1	3016	1
2513		3017

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