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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.265 by root, Fri May 11 08:00:00 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, "long sync job\n"
		362	if $time > $TICK * 0.5;
		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	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		448
543	#############################################################################	449	#############################################################################
544		450
545	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
546		452
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	579	our @CB_MAP = ();
674		580
675	my %attachment;	581	my %attachment;
676		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
677	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
679		591
680	use sort 'stable';	592	use sort 'stable';
681		593
…		…
852	# object support	764	# object support
853		765
854	sub reattach {	766	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		771
858	my $registry = $obj->registry;	772	my $registry = $obj->registry;
859		773
860	@$registry = ();	774	@$registry = ();
861		775
…		…
908	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
909		823
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	828	close $fh;
915		829
916	if (@$objs) {	830	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	836	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
924	}	838	}
925	} else {	839	} else {
926	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
1048	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
1051	. "\n};\n1";	965	. "\n};\n1";
1052		966
1053	eval $source	967	unless (eval $source) {
1054	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
1055	: "extension disabled.\n";	969	: "extension disabled.\n";
		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
		971	warn $@;
		972	warn "mandatory extension failed to load, exiting.\n";
		973	exit 1;
		974	}
		975	die $@;
		976	}
1056		977
1057	push @EXTS, $pkg;	978	push @EXTS, $pkg;
1058	}	979	}
1059		980
1060	sub load_extensions {	981	sub load_extensions {
…		…
1066	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1067	}	988	}
1068	}	989	}
1069		990
1070	#############################################################################	991	#############################################################################
1071	# load/save/clean perl data associated with a map
1072
1073	*cf::mapsupport::on_clean = sub {
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		992
1086	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1087		994
1088	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1089		996
…		…
1102	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1103		1010
1104	=cut	1011	=cut
1105		1012
1106	sub playerdir($) {	1013	sub playerdir($) {
1107	cf::localdir	1014	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1016	}
1113		1017
1114	sub path($) {	1018	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1020
1117	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1118	}	1022	}
1119		1023
1120	sub find_active($) {	1024	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1125		1029
1126	sub exists($) {	1030	sub exists($) {
1127	my ($login) = @_;	1031	my ($login) = @_;
1128		1032
1129	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1131	}	1035	}
1132		1036
1133	sub find($) {	1037	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1039	my $login = $_[0];
1136		1040
1137	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1138		1042
1139	$cf::PLAYER{$_[0]} || do {	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
1140	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1141	or return;	1052	or return;
1142	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1143	}	1054	}
1144	}	1055	}
…		…
1181		1092
1182	=cut	1093	=cut
1183		1094
1184	sub quit_character {	1095	sub quit_character {
1185	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1186		1099
1187	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1102
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1200	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
1201	}	1134	}
1202		1135
1203	=item cf::player::list_logins	1136	=item cf::player::list_logins
1204		1137
1205	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1207		1140
1208	=cut	1141	=cut
1209		1142
1210	sub list_logins {	1143	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1145	or return [];
1213		1146
1214	my @logins;	1147	my @logins;
1215		1148
1216	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1225	\@logins	1158	\@logins
1226	}	1159	}
1227		1160
1228	=item $player->maps	1161	=item $player->maps
1229		1162
1230	Returns an arrayref of cf::path's of all maps that are private for this	1163	Returns an arrayref of map paths that are private for this
1231	player. May block.	1164	player. May block.
1232		1165
1233	=cut	1166	=cut
1234		1167
1235	sub maps($) {	1168	sub maps($) {
1236	my ($pl) = @_;	1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1172
1238	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1239	or return;	1174	or return;
1240		1175
1241	my @paths;	1176	my @paths;
…		…
1243	for (@$files) {	1178	for (@$files) {
1244	utf8::decode $_;	1179	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1181	next unless /^$PATH_SEP/o;
1247		1182
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1183	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1184	}
1250		1185
1251	\@paths	1186	\@paths
1252	}	1187	}
1253		1188
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1255		1190
1256	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1257		1192
1258	=cut	1193	=cut
1259		1194
1260	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1262		1197
1263	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1264		1199
1265	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1266	}	1201	}
1267		1202
1268	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1269		1243
1270	=back	1244	=back
1271
1272		1245
1273	=head3 cf::map	1246	=head3 cf::map
1274		1247
1275	=over 4	1248	=over 4
1276		1249
…		…
1279	package cf::map;	1252	package cf::map;
1280		1253
1281	use Fcntl;	1254	use Fcntl;
1282	use Coro::AIO;	1255	use Coro::AIO;
1283		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1284	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1286		1263
1287	sub generate_random_map {	1264	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1267	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1279	)
1305	}	1280	}
1306		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
		1409	}
		1410
1307	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1308	# all maps in C++...	1412	# all maps in C++...
1309	sub change_all_map_light {	1413	sub change_all_map_light {
1310	my ($change) = @_;	1414	my ($change) = @_;
1311		1415
1312	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1314	}	1418	}
1315		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1316	sub load_map_header($) {	1428	sub load_header_from($) {
1317	my ($path) = @_;	1429	my ($self, $path) = @_;
1318		1430
1319	utf8::encode $path;	1431	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1321	or return;	1436	or return;
1322		1437
1323	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1324	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1325		1484
1326	# for better error messages only, will be overwritten later	1485	$self->default_region (cf::region::find_by_path $self->{path})
1327	$map->path ($path);	1486	unless $self->default_region;
1328		1487
1329	$map->load_header ($path)	1488	1
1330	or return;
1331
1332	$map->{load_path} = $path;
1333
1334	$map
1335	}	1489	}
1336		1490
1337	sub find;	1491	sub find;
1338	sub find {	1492	sub find {
1339	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1340		1494
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1496
1346	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1347		1498
1348	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1350		1501	my $map = new_from_path cf::map $path
1351	# do it the slow way
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1502	or return;
1365		1503
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1378		1505
1379	Coro::cede;	1506	$map->load_header
		1507	or return;
1380		1508
1381	if ($map->should_reset) {	1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1382	$map->reset;	1512	$map->reset;
1383	undef $guard;	1513	undef $guard;
1384	$map = find $path	1514	return find $path;
1385	or return;
1386	}	1515	}
1387		1516
1388	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1389	}	1518	}
1390	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1391		1523
1392	sub load {	1524	sub load {
1393	my ($self) = @_;	1525	my ($self) = @_;
1394		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1395	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1397		1533
1398	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1399		1535
1400	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1401		1537
1402	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1403	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1404	or return;	1544	or return;
1405		1545
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	1547	if delete $self->{load_original};
1408		1548
1409	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	1550	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1412	$self->clear_unique_items;	1552	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1414	}	1554	}
1415	}	1555	}
1416		1556
1417	Coro::cede;	1557	Coro::cede;
1418
1419	# now do the right thing for maps	1558	# now do the right thing for maps
1420	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1432	$self->activate;	1571	$self->activate;
1433	}	1572	}
1434		1573
1435	Coro::cede;
1436
1437	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
1438	}	1587	}
1439		1588
1440	# find and load all maps in the 3x3 area around a map	1589	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	1590	sub load_diag {
1442	my ($map) = @_;	1591	my ($map) = @_;
…		…
1472		1621
1473	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1474	}	1623	}
1475		1624
1476	our %MAP_PREFETCH;	1625	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = Coro::async {	1626	our $MAP_PREFETCHER = undef;
1478	while () {
1479	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH
1481	or next;
1482	my $path = delete $MAP_PREFETCH{$key};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}
1488	Coro::schedule;
1489	}
1490	};
1491		1627
1492	sub find_async {	1628	sub find_async {
1493	my ($path, $origin) = @_;	1629	my ($path, $origin) = @_;
1494		1630
1495	$path = new cf::path $path, $origin && $origin->path;	1631	$path = normalise $path, $origin && $origin->{path};
1496	my $key = $path->as_string;
1497		1632
1498	if (my $map = $cf::MAP{$key}) {	1633	if (my $map = $cf::MAP{$path}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}	1635	}
1501		1636
1502	$MAP_PREFETCH{$key} = $path;	1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
1503	$MAP_PREFETCHER->ready;	1650	$MAP_PREFETCHER->prio (6);
1504		1651
1505	()	1652	()
1506	}	1653	}
1507		1654
1508	sub save {	1655	sub save {
…		…
1512		1659
1513	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1514		1661
1515	return unless $self->dirty;	1662	return unless $self->dirty;
1516		1663
1517	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		1666
1520	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1521		1668
1522	return if $self->{deny_save};	1669	return if $self->{deny_save};
1523		1670
…		…
1526	cf::async {	1673	cf::async {
1527	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1528	};	1675	};
1529		1676
1530	if ($uniq) {	1677	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	1680	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	1682	}
1536	}	1683	}
1537		1684
1538	sub swap_out {	1685	sub swap_out {
1539	my ($self) = @_;	1686	my ($self) = @_;
…		…
1553		1700
1554	sub reset_at {	1701	sub reset_at {
1555	my ($self) = @_;	1702	my ($self) = @_;
1556		1703
1557	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1559	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1560		1707
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		1710
…		…
1568	my ($self) = @_;	1715	my ($self) = @_;
1569		1716
1570	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1571	}	1718	}
1572		1719
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	1720	sub reset {
1587	my ($self) = @_;	1721	my ($self) = @_;
1588		1722
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		1724
1591	return if $self->players;	1725	return if $self->players;
1592	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1593		1727
1594	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1595		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1596	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
1597		1741
		1742	$self->clear;
		1743
1598	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1599		1745
1600	$self->{path}->unlink_save;	1746	$self->unlink_save;
1601	$self->destroy;	1747	$self->destroy;
1602	}	1748	}
1603		1749
1604	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1605		1751
1606	sub nuke {	1752	sub nuke {
1607	my ($self) = @_;	1753	my ($self) = @_;
1608		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1612	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1613	}	1768	}
1614		1769
1615	=item cf::map::unique_maps	1770	=item cf::map::unique_maps
1616		1771
1617	Returns an arrayref of cf::path's of all shared maps that have	1772	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	1773	instantiated unique items. May block.
1619		1774
1620	=cut	1775	=cut
1621		1776
1622	sub unique_maps() {	1777	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1778	my $files = aio_readdir $UNIQUEDIR
1624	or return;	1779	or return;
1625		1780
1626	my @paths;	1781	my @paths;
1627		1782
1628	for (@$files) {	1783	for (@$files) {
1629	utf8::decode $_;	1784	utf8::decode $_;
1630	next if /\.pst$/;	1785	next if /\.pst$/;
1631	next unless /^$PATH_SEP/o;	1786	next unless /^$PATH_SEP/o;
1632		1787
1633	push @paths, new cf::path $_;	1788	push @paths, cf::map::normalise $_;
1634	}	1789	}
1635		1790
1636	\@paths	1791	\@paths
1637	}	1792	}
1638		1793
…		…
1713		1868
1714	=item $player_object->enter_link	1869	=item $player_object->enter_link
1715		1870
1716	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1717		1872
1718	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1720		1875
		1876	Will never block.
		1877
1721	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1722		1879
1723	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	1883	fails, to the emergency map position.
1727		1884
1728	Might block.	1885	Might block.
1729		1886
1730	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1731		1898
1732	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1733	my ($self) = @_;	1900	my ($self) = @_;
1734		1901
1735	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1736		1903
1737	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		1905
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	1907	if $self->map;
1741		1908
1742	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	1910	}
1744		1911
1745	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1747		1914
…		…
1769	$map->load;	1936	$map->load;
1770	$map->load_diag;	1937	$map->load_diag;
1771		1938
1772	return unless $self->contr->active;	1939	return unless $self->contr->active;
1773	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1775	}	1944	}
1776		1945
1777	cf::player->attach (	1946	cf::player->attach (
1778	on_logout => sub {	1947	on_logout => sub {
…		…
1791	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes	1961	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1795	(async {	1964	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,	1965	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "	1966	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",	1967	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);	1968	cf::NDI_RED);
		1969	# we need this sleep as the login has a concurrent enter_exit running
		1970	# and this sleep increases chances of the player not ending up in scorn
1802	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1804	})->prio (2);	1973	})->prio (2);
1805	}	1974	}
1806	},	1975	},
…		…
1811	=cut	1980	=cut
1812		1981
1813	sub cf::object::player::goto {	1982	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1815		1984
1816	$path = new cf::path $path;
1817
1818	$self->enter_link;	1985	$self->enter_link;
1819		1986
1820	(async {	1987	(async {
		1988	my $map = eval {
1821	my $map = cf::map::find $path->as_string;	1989	my $map = cf::map::find $path;
1822	$map = $map->{path}->customise_for ($map, $self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1823		1991	$map
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1825	# if $map;
1826
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1828		1994
1829	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1830	})->prio (1);	1996	})->prio (1);
1831	}	1997	}
1832		1998
…		…
1836		2002
1837	sub parse_random_map_params {	2003	sub parse_random_map_params {
1838	my ($spec) = @_;	2004	my ($spec) = @_;
1839		2005
1840	my $rmp = { # defaults	2006	my $rmp = { # defaults
1841	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1843	};	2011	};
1844		2012
1845	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1847		2015
…		…
1851	$rmp	2019	$rmp
1852	}	2020	}
1853		2021
1854	sub prepare_random_map {	2022	sub prepare_random_map {
1855	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2026
1857	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2029	# that depends on the exit object
1860		2030
1861	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1862		2032
1863	if ($exit->map) {	2033	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1868	}	2038	}
1869		2039
1870	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1871		2041
1872	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1874		2045
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2047	aio_write $fh, 0, (length $data), $data, 0;
		2048	undef $fh;
		2049	aio_rename "$meta~", $meta;
1877		2050
1878	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2052	$exit->msg (undef);
1880	}	2053	}
1881	}	2054	}
1882		2055
1883	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1885		2058
1886	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
		2060
		2061	if ($exit->slaying eq "/!") {
		2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2063	# the problem is that $exit might not survive long enough
		2064	# so it needs to be done right now, right here
		2065	cf::sync_job { prepare_random_map $exit };
		2066	}
		2067
		2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2069	my $hp = $exit->stats->hp;
		2070	my $sp = $exit->stats->sp;
1887		2071
1888	$self->enter_link;	2072	$self->enter_link;
1889		2073
1890	(async {	2074	(async {
1891	$self->deactivate_recursive; # just to be sure	2075	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2076	unless (eval {
1893	prepare_random_map $exit	2077	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2078
1899	1;	2079	1;
1900	}) {	2080	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2082	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2083	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2085
1906	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2087	$self->leave_link;
1908	}	2088	}
1909	})->prio (1);	2089	})->prio (1);
…		…
1922		2102
1923	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1925		2105
1926	utf8::encode $text;	2106	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2108	}
1929		2109
		2110	=item $client->ext_event ($type, %msg)
		2111
		2112	Sends an exti event to the client.
		2113
		2114	=cut
		2115
		2116	sub cf::client::ext_event($$%) {
		2117	my ($self, $type, %msg) = @_;
		2118
		2119	$msg{msgtype} = "event_$type";
		2120	$self->send_packet ("ext " . cf::to_json \%msg);
		2121	}
1930		2122
1931	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1932		2124
1933	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1963	# get handled first	2155	# get handled first
1964	my $queue = delete $ns->{query_queue}	2156	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2158
1967	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2161
1969	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1970		2163
1971	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2165	if (@$queue) {
…		…
2030		2223
2031	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
2032		2225
2033	=pod	2226	=pod
2034		2227
2035	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
2036		2229
2037	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
2038	cf::object::player player	2231	cf::object::player player
2039	cf::player peaceful	2232	cf::player peaceful
2040	cf::map trigger	2233	cf::map trigger
…		…
2125	#############################################################################	2318	#############################################################################
2126		2319
2127	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
2128		2321
2129	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
2130	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2131	excludes objects.	2324	convert to/from binary).
2132		2325
2133	The parameter C<$family> should best start with the name of the extension	2326	The parameter C<$family> should best start with the name of the extension
2134	using it, it should be unique.	2327	using it, it should be unique.
2135		2328
2136	=over 4	2329	=over 4
2137		2330
2138	=item $hashref = cf::db_get $family
2139
2140	Return a hashref for use by the extension C<$family>, which can be
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143
2144	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
2145		2332
2146	Returns a single value from the database	2333	Returns a single value from the database.
2147
2148	=item cf::db_put $family => $hashref
2149
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152		2334
2153	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
2154		2336
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165		2338
2166	=cut	2339	=cut
2167		2340
2168	our $DB;	2341	our $DB;
2169		2342
2170	{	2343	sub db_init {
2171	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
2172		2346
2173	sub db_load() {	2347	cf::sync_job {
2174	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
2175	}	2349	$DB->set_flags (BDB::CHKSUM);
2176		2350
2177	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2178		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2179	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
2180	waitpid $pid, 0 if $pid;	2354	};
2181	if (0 == ($pid = fork)) {	2355	cf::cleanup "db_open(db): $@" if $@;
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}	2356	};
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	2357	}
		2358	}
2199		2359
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}
2204
2205	sub db_get($;$) {	2360	sub db_get($$) {
2206	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
2211	sub db_put($$;$) {	2371	sub db_put($$$) {
2212	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
2213	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2214	} else {	2374	}
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219		2375
2220	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
2221	prio => 10000,	2377
2222	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
2223	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($id, $src, $processversion, $process) = @_;
		2387
		2388	my $meta =
		2389	join "\x00",
		2390	$processversion,
		2391	map {
		2392	aio_stat $_
		2393	and Carp::croak "$_: $!";
		2394
		2395	($_, (stat _)[7,9])
		2396	} @$src;
		2397
		2398	my $dbmeta = db_get cache => "$id/meta";
		2399	if ($dbmeta ne $meta) {
		2400	# changed, we may need to process
		2401
		2402	my @data;
		2403	my $md5;
		2404
		2405	for (0 .. $#$src) {
		2406	0 <= aio_load $src->[$_], $data[$_]
		2407	or Carp::croak "$src->[$_]: $!";
2224	},	2408	}
2225	);	2409
		2410	# if processing is expensive, check
		2411	# checksum first
		2412	if (1) {
		2413	$md5 =
		2414	join "\x00",
		2415	$processversion,
		2416	map {
		2417	Coro::cede;
		2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2419	} 0.. $#$src;
		2420
		2421
		2422	my $dbmd5 = db_get cache => "$id/md5";
		2423	if ($dbmd5 eq $md5) {
		2424	db_put cache => "$id/meta", $meta;
		2425
		2426	return db_get cache => "$id/data";
		2427	}
		2428	}
		2429
		2430	my $t1 = Time::HiRes::time;
		2431	my $data = $process->(\@data);
		2432	my $t2 = Time::HiRes::time;
		2433
		2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2435
		2436	db_put cache => "$id/data", $data;
		2437	db_put cache => "$id/md5" , $md5;
		2438	db_put cache => "$id/meta", $meta;
		2439
		2440	return $data;
		2441	}
		2442
		2443	db_get cache => "$id/data"
2226	}	2444	}
		2445
		2446	=item fork_call { }, $args
		2447
		2448	Executes the given code block with the given arguments in a seperate
		2449	process, returning the results. Everything must be serialisable with
		2450	Coro::Storable. May, of course, block. Note that the executed sub may
		2451	never block itself or use any form of Event handling.
		2452
		2453	=cut
		2454
		2455	sub fork_call(&@) {
		2456	my ($cb, @args) = @_;
		2457
		2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2459	# or die "socketpair: $!";
		2460	pipe my $fh1, my $fh2
		2461	or die "pipe: $!";
		2462
		2463	if (my $pid = fork) {
		2464	close $fh2;
		2465
		2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2467	$res = Coro::Storable::thaw $res;
		2468
		2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2470
		2471	die $$res unless "ARRAY" eq ref $res;
		2472
		2473	return wantarray ? @$res : $res->[-1];
		2474	} else {
		2475	reset_signals;
		2476	local $SIG{__WARN__};
		2477	local $SIG{__DIE__};
		2478	eval {
		2479	close $fh1;
		2480
		2481	my @res = eval { $cb->(@args) };
		2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2483	};
		2484
		2485	warn $@ if $@;
		2486	_exit 0;
		2487	}
		2488	}
		2489
		2490
2227		2491
2228	#############################################################################	2492	#############################################################################
2229	# the server's main()	2493	# the server's init and main functions
		2494
		2495	sub load_facedata($) {
		2496	my ($path) = @_;
		2497
		2498	warn "loading facedata from $path\n";
		2499
		2500	my $facedata;
		2501	0 < aio_load $path, $facedata
		2502	or die "$path: $!";
		2503
		2504	$facedata = Coro::Storable::thaw $facedata;
		2505
		2506	$facedata->{version} == 2
		2507	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2508
		2509	{
		2510	my $faces = $facedata->{faceinfo};
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2517	Coro::cede;
		2518	}
		2519
		2520	while (my ($face, $info) = each %$faces) {
		2521	next unless $info->{smooth};
		2522	my $idx = cf::face::find $face
		2523	or next;
		2524	if (my $smooth = cf::face::find $info->{smooth}) {
		2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2526	} else {
		2527	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2528	}
		2529	Coro::cede;
		2530	}
		2531	}
		2532
		2533	{
		2534	my $anims = $facedata->{animinfo};
		2535
		2536	while (my ($anim, $info) = each %$anims) {
		2537	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2538	Coro::cede;
		2539	}
		2540
		2541	cf::anim::invalidate_all; # d'oh
		2542	}
		2543
		2544	1
		2545	}
		2546
		2547	sub reload_regions {
		2548	load_resource_file "$MAPDIR/regions"
		2549	or die "unable to load regions file\n";
		2550	}
		2551
		2552	sub reload_facedata {
		2553	load_facedata "$DATADIR/facedata"
		2554	or die "unable to load facedata\n";
		2555	}
		2556
		2557	sub reload_archetypes {
		2558	load_resource_file "$DATADIR/archetypes"
		2559	or die "unable to load archetypes\n";
		2560	}
		2561
		2562	sub reload_treasures {
		2563	load_resource_file "$DATADIR/treasures"
		2564	or die "unable to load treasurelists\n";
		2565	}
		2566
		2567	sub reload_resources {
		2568	warn "reloading resource files...\n";
		2569
		2570	reload_regions;
		2571	reload_facedata;
		2572	reload_archetypes;
		2573	reload_treasures;
		2574
		2575	warn "finished reloading resource files\n";
		2576	}
		2577
		2578	sub init {
		2579	reload_resources;
		2580	}
2230		2581
2231	sub cfg_load {	2582	sub cfg_load {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	2584	or return;
2234		2585
2235	local $/;	2586	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
2237		2588
…		…
2251		2602
2252	sub main {	2603	sub main {
2253	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2607	(async {
2256	async { Event::one_event };	2608	Event::one_event;
		2609	})->prio (Coro::PRIO_MAX);
2257	};	2610	};
2258		2611
2259	cfg_load;	2612	cfg_load;
2260	db_load;	2613	db_init;
2261	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
2262	Event::loop;	2617	Event::loop;
2263	}	2618	}
2264		2619
2265	#############################################################################	2620	#############################################################################
2266	# initialisation and cleanup	2621	# initialisation and cleanup
2267		2622
2268	# install some emergency cleanup handlers	2623	# install some emergency cleanup handlers
2269	BEGIN {	2624	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	2625	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	2626	Event->signal (
		2627	reentrant => 0,
2272	data => WF_AUTOCANCEL,	2628	data => WF_AUTOCANCEL,
2273	signal => $signal,	2629	signal => $signal,
		2630	prio => 0,
2274	cb => sub {	2631	cb => sub {
2275	cf::cleanup "SIG$signal";	2632	cf::cleanup "SIG$signal";
2276	},	2633	},
2277	);	2634	);
2278	}	2635	}
2279	}	2636	}
…		…
2284	warn "enter emergency perl save\n";	2641	warn "enter emergency perl save\n";
2285		2642
2286	cf::sync_job {	2643	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	2644	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	2645	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	2646	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	2647	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	2648	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	2649	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	2650	$pl->valid or next;
2294	$pl->save;	2651	$pl->save;
…		…
2300	my $map = $cf::MAP{$path} or next;	2657	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	2658	$map->valid or next;
2302	$map->save;	2659	$map->save;
2303	}	2660	}
2304	warn "end emergency map save\n";	2661	warn "end emergency map save\n";
		2662
		2663	warn "begin emergency database checkpoint\n";
		2664	BDB::db_env_txn_checkpoint $DB_ENV;
		2665	warn "end emergency database checkpoint\n";
2305	};	2666	};
2306		2667
2307	warn "leave emergency perl save\n";	2668	warn "leave emergency perl save\n";
2308	}	2669	}
2309		2670
		2671	sub post_cleanup {
		2672	my ($make_core) = @_;
		2673
		2674	warn Carp::longmess "post_cleanup backtrace"
		2675	if $make_core;
		2676	}
		2677
2310	sub reload() {	2678	sub do_reload_perl() {
2311	# can/must only be called in main	2679	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2314	return;	2682	return;
2315	}	2683	}
2316		2684
2317	warn "reloading...";	2685	warn "reloading...";
2318		2686
2319	warn "freezing server";	2687	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2322		2693
2323	warn "sync database to disk";	2694	warn "syncing database to disk";
2324	cf::db_sync;	2695	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		2696
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	2697	# if anything goes wrong in here, we should simply crash as we already saved
2329		2698
2330	warn "cancel all watchers";	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	2702	}
2334		2703
		2704	warn "flushing outstanding aio requests";
		2705	for (;;) {
		2706	BDB::flush;
		2707	IO::AIO::flush;
		2708	Coro::cede;
		2709	last unless IO::AIO::nreqs || BDB::nreqs;
		2710	warn "iterate...";
		2711	}
		2712
		2713	++$RELOAD;
		2714
2335	warn "cancel all extension coros";	2715	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	2717	%EXT_CORO = ();
2338		2718
2339	warn "remove commands";	2719	warn "removing commands";
2340	%COMMAND = ();	2720	%COMMAND = ();
2341		2721
2342	warn "remove ext commands";	2722	warn "removing ext commands";
2343	%EXTCMD = ();	2723	%EXTCMD = ();
2344		2724
2345	warn "unload/nuke all extensions";	2725	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	2726	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	2727	warn "... unloading $pkg";
2348		2728
2349	if (my $cb = $pkg->can ("unload")) {	2729	if (my $cb = $pkg->can ("unload")) {
2350	eval {	2730	eval {
…		…
2355		2735
2356	warn "... nuking $pkg";	2736	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	2737	Symbol::delete_package $pkg;
2358	}	2738	}
2359		2739
2360	warn "unload all perl modules loaded from $LIBDIR";	2740	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		2743
2364	warn "removing <$k>";	2744	warn "... unloading $k";
2365	delete $INC{$k};	2745	delete $INC{$k};
2366		2746
2367	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2369		2749
…		…
2372	}	2752	}
2373		2753
2374	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2375	}	2755	}
2376		2756
2377	warn "get rid of safe::, as good as possible";	2757	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		2760
2381	warn "unload cf.pm \"a bit\"";	2761	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2383		2764
2384	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2385	# and global variables created in xs	2766	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2387		2768
		2769	warn "unload completed, starting to reload now";
		2770
2388	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2389	require cf;	2772	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		2774
2392	warn "load config and database again";	2775	warn "loading config and database again";
2393	cf::cfg_load;	2776	cf::cfg_load;
2394	cf::db_load;
2395		2777
2396	warn "load extensions";	2778	warn "loading extensions";
2397	cf::load_extensions;	2779	cf::load_extensions;
2398		2780
2399	warn "reattach attachments to objects/players";	2781	warn "reattaching attachments to objects/players";
2400	_global_reattach;	2782	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	2783	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	2784	reattach $_ for values %MAP;
2403	};	2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2404		2787
2405	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2406	warn $@;	2792	warn $@;
2407	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2408	exit 1;	2794	exit 1;
2409	}	2795	};
2410		2796
2411	warn "reloaded";	2797	warn "reloaded";
2412	};	2798	};
2413		2799
2414	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2415		2801
2416	unless ($LINK_MAP) {	2802	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	2803	# doing reload synchronously and two reloads happen back-to-back,
		2804	# coro crashes during coro_state_free->destroy here.
2418		2805
2419	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	2807	reentrant => 0,
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2429	cb => sub {	2810	cb => sub {
2430	$_[0]->w->cancel;	2811	do_reload_perl;
2431		2812	undef $RELOAD_WATCHER;
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});	2813	},
2450		2814	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	2815	}
2456		2816
2457	register_command "reload" => sub {	2817	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2459		2819
2460	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2464	}	2823	}
2465	};	2824	};
2466		2825
2467	unshift @INC, $LIBDIR;	2826	unshift @INC, $LIBDIR;
		2827
		2828	my $bug_warning = 0;
		2829
		2830	our @WAIT_FOR_TICK;
		2831	our @WAIT_FOR_TICK_BEGIN;
		2832
		2833	sub wait_for_tick {
		2834	return unless $TICK_WATCHER->is_active;
		2835	return if $Coro::current == $Coro::main;
		2836
		2837	my $signal = new Coro::Signal;
		2838	push @WAIT_FOR_TICK, $signal;
		2839	$signal->wait;
		2840	}
		2841
		2842	sub wait_for_tick_begin {
		2843	return unless $TICK_WATCHER->is_active;
		2844	return if $Coro::current == $Coro::main;
		2845
		2846	my $signal = new Coro::Signal;
		2847	push @WAIT_FOR_TICK_BEGIN, $signal;
		2848	$signal->wait;
		2849	}
2468		2850
2469	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2471	prio => 0,	2854	prio => 0,
2472	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2474	cb => sub {	2857	cb => sub {
		2858	if ($Coro::current != $Coro::main) {
		2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2860	unless ++$bug_warning > 10;
		2861	return;
		2862	}
		2863
2475	$NOW = Event::time;	2864	$NOW = $tick_start = Event::time;
2476		2865
2477	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2478	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2480		2870
2481	$WAIT_FOR_TICK->broadcast;	2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2872	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2873	Coro::async_pool {
		2874	write_runtime
		2875	or warn "ERROR: unable to write runtime file: $!";
		2876	};
		2877	}
		2878
		2879	# my $AFTER = Event::time;
		2880	# warn $AFTER - $NOW;#d#
		2881
		2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2883	$sig->send;
		2884	}
		2885	while (my $sig = shift @WAIT_FOR_TICK) {
		2886	$sig->send;
		2887	}
		2888
		2889	$NOW = Event::time;
2483		2890
2484	# if we are delayed by four ticks or more, skip them all	2891	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		2893
2487	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	2895	$TICK_WATCHER->start;
		2896
		2897	$LOAD = ($NOW - $tick_start) / $TICK;
		2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2899
		2900	_post_tick;
		2901
		2902
2489	},	2903	},
2490	);	2904	);
2491		2905
		2906	{
2492	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2493		2908	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	2909	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2496	poll => 'r',	2911	poll => 'r',
2497	prio => 5,	2912	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2504	after => 0,	2914	cb => \&BDB::poll_cb,
2505	interval => 10,	2915	);
2506	cb => sub {	2916	BDB::min_parallel 8;
2507	(Coro::unblock_sub {	2917
2508	write_runtime	2918	BDB::set_sync_prepare {
2509	or warn "ERROR: unable to write runtime file: $!";	2919	my $status;
		2920	my $current = $Coro::current;
		2921	(
		2922	sub {
		2923	$status = $!;
		2924	$current->ready; undef $current;
		2925	},
		2926	sub {
		2927	Coro::schedule while defined $current;
		2928	$! = $status;
		2929	},
		2930	)
		2931	};
		2932
		2933	unless ($DB_ENV) {
		2934	$DB_ENV = BDB::db_env_create;
		2935
		2936	cf::sync_job {
		2937	eval {
		2938	BDB::db_env_open
		2939	$DB_ENV,
		2940	$BDBDIR,
		2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2943	0666;
		2944
		2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2946
		2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2948	$DB_ENV->set_lk_detect;
		2949	};
		2950
		2951	cf::cleanup "db_env_open(db): $@" if $@;
2510	})->();	2952	};
2511	},	2953	}
2512	);	2954	}
		2955
		2956	{
		2957	IO::AIO::min_parallel 8;
		2958
		2959	undef $Coro::AIO::WATCHER;
		2960	IO::AIO::max_poll_time $TICK * 0.1;
		2961	$AIO_POLL_WATCHER = Event->io (
		2962	reentrant => 0,
		2963	data => WF_AUTOCANCEL,
		2964	fd => IO::AIO::poll_fileno,
		2965	poll => 'r',
		2966	prio => 6,
		2967	cb => \&IO::AIO::poll_cb,
		2968	);
		2969	}
		2970
		2971	my $_log_backtrace;
		2972
		2973	sub _log_backtrace {
		2974	my ($msg, @addr) = @_;
		2975
		2976	$msg =~ s/\n//;
		2977
		2978	# limit the # of concurrent backtraces
		2979	if ($_log_backtrace < 2) {
		2980	++$_log_backtrace;
		2981	async {
		2982	my @bt = fork_call {
		2983	@addr = map { sprintf "%x", $_ } @addr;
		2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2986	or die "addr2line: $!";
		2987
		2988	my @funcs;
		2989	my @res = <$fh>;
		2990	chomp for @res;
		2991	while (@res) {
		2992	my ($func, $line) = splice @res, 0, 2, ();
		2993	push @funcs, "[$func] $line";
		2994	}
		2995
		2996	@funcs
		2997	};
		2998
		2999	LOG llevInfo, "[ABT] $msg\n";
		3000	LOG llevInfo, "[ABT] $_\n" for @bt;
		3001	--$_log_backtrace;
		3002	};
		3003	} else {
		3004	LOG llevInfo, "[ABT] $msg\n";
		3005	LOG llevInfo, "[ABT] [suppressed]\n";
		3006	}
		3007	}
		3008
		3009	# load additional modules
		3010	use cf::pod;
2513		3011
2514	END { cf::emergency_save }	3012	END { cf::emergency_save }
2515		3013
2516	1	3014	1
2517		3015

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