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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.266 by root, Fri May 18 01:01:02 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($$$$) {	589	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
659		591
660	use sort 'stable';	592	use sort 'stable';
661		593
…		…
832	# object support	764	# object support
833		765
834	sub reattach {	766	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		771
838	my $registry = $obj->registry;	772	my $registry = $obj->registry;
839		773
840	@$registry = ();	774	@$registry = ();
841		775
…		…
888	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
889		823
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	828	close $fh;
895		829
896	if (@$objs) {	830	if (@$objs) {
897	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) {
898	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	836	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
904	}	838	}
905	} else {	839	} else {
906	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
1028	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
1031	. "\n};\n1";	965	. "\n};\n1";
1032		966
1033	eval $source	967	unless (eval $source) {
1034	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
1035	: "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	}
1036		977
1037	push @EXTS, $pkg;	978	push @EXTS, $pkg;
1038	}	979	}
1039		980
1040	sub load_extensions {	981	sub load_extensions {
…		…
1046	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1047	}	988	}
1048	}	989	}
1049		990
1050	#############################################################################	991	#############################################################################
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		992
1066	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1067		994
1068	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1069		996
…		…
1082	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1083		1010
1084	=cut	1011	=cut
1085		1012
1086	sub playerdir($) {	1013	sub playerdir($) {
1087	cf::localdir	1014	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1016	}
1093		1017
1094	sub path($) {	1018	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1020
1097	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1098	}	1022	}
1099		1023
1100	sub find_active($) {	1024	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1105		1029
1106	sub exists($) {	1030	sub exists($) {
1107	my ($login) = @_;	1031	my ($login) = @_;
1108		1032
1109	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1111	}	1035	}
1112		1036
1113	sub find($) {	1037	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1039	my $login = $_[0];
1116		1040
1117	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1118		1042
1119	$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
1120	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1121	or return;	1052	or return;
1122	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1123	}	1054	}
1124	}	1055	}
…		…
1161		1092
1162	=cut	1093	=cut
1163		1094
1164	sub quit_character {	1095	sub quit_character {
1165	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1166		1099
1167	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1168	$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
1169		1102
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1179	$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
1180	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;
1181	}	1134	}
1182		1135
1183	=item cf::player::list_logins	1136	=item cf::player::list_logins
1184		1137
1185	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
1186	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1187		1140
1188	=cut	1141	=cut
1189		1142
1190	sub list_logins {	1143	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1145	or return [];
1193		1146
1194	my @logins;	1147	my @logins;
1195		1148
1196	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1205	\@logins	1158	\@logins
1206	}	1159	}
1207		1160
1208	=item $player->maps	1161	=item $player->maps
1209		1162
1210	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
1211	player. May block.	1164	player. May block.
1212		1165
1213	=cut	1166	=cut
1214		1167
1215	sub maps($) {	1168	sub maps($) {
1216	my ($pl) = @_;	1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1172
1218	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1219	or return;	1174	or return;
1220		1175
1221	my @paths;	1176	my @paths;
…		…
1223	for (@$files) {	1178	for (@$files) {
1224	utf8::decode $_;	1179	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1181	next unless /^$PATH_SEP/o;
1227		1182
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1183	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1184	}
1230		1185
1231	\@paths	1186	\@paths
1232	}	1187	}
1233		1188
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1235		1190
1236	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1237		1192
1238	=cut	1193	=cut
1239		1194
1240	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1241	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1242		1197
1243	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1244		1199
1245	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1246	}	1201	}
1247		1202
1248	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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	}
1249		1243
1250	=back	1244	=back
1251
1252		1245
1253	=head3 cf::map	1246	=head3 cf::map
1254		1247
1255	=over 4	1248	=over 4
1256		1249
…		…
1259	package cf::map;	1252	package cf::map;
1260		1253
1261	use Fcntl;	1254	use Fcntl;
1262	use Coro::AIO;	1255	use Coro::AIO;
1263		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1264	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1266		1263
1267	sub generate_random_map {	1264	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1267	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1279	)
1285	}	1280	}
1286		1281
		1282	=item cf::map->register ($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
1287	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1288	# all maps in C++...	1412	# all maps in C++...
1289	sub change_all_map_light {	1413	sub change_all_map_light {
1290	my ($change) = @_;	1414	my ($change) = @_;
1291		1415
1292	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1294	}	1418	}
1295		1419
		1420	sub unlink_save {
		1421	my ($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
1296	sub load_map_header($) {	1428	sub load_header_from($) {
1297	my ($path) = @_;	1429	my ($self, $path) = @_;
1298		1430
1299	utf8::encode $path;	1431	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1301	or return;	1436	or return;
1302		1437
1303	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
1304	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1305		1484
1306	# for better error messages only, will be overwritten later	1485	$self->default_region (cf::region::find_by_path $self->{path})
1307	$map->path ($path);	1486	unless $self->default_region;
1308		1487
1309	$map->load_header ($path)	1488	1
1310	or return;
1311
1312	$map->{load_path} = $path;
1313
1314	$map
1315	}	1489	}
1316		1490
1317	sub find;	1491	sub find;
1318	sub find {	1492	sub find {
1319	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1320		1494
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1496
1326	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1327		1498
1328	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1330		1501	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;	1502	or return;
1345		1503
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;	1504	$map->{last_save} = $cf::RUNTIME;
1358		1505
1359	Coro::cede;	1506	$map->load_header
		1507	or return;
1360		1508
1361	if ($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;
1362	$map->reset;	1512	$map->reset;
1363	undef $guard;	1513	undef $guard;
1364	$map = find $path	1514	return find $path;
1365	or return;
1366	}	1515	}
1367		1516
1368	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1369	}	1518	}
1370	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1371		1523
1372	sub load {	1524	sub load {
1373	my ($self) = @_;	1525	my ($self) = @_;
1374		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1375	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1377		1533
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1379		1535
1380	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1381		1537
1382	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1383	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1384	or return;	1544	or return;
1385		1545
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1547	if delete $self->{load_original};
1388		1548
1389	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1550	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1392	$self->clear_unique_items;	1552	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1394	}	1554	}
1395	}	1555	}
1396		1556
1397	Coro::cede;	1557	Coro::cede;
1398
1399	# now do the right thing for maps	1558	# now do the right thing for maps
1400	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1401
1402	if ($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)	1560	$self->difficulty ($self->estimate_difficulty)
1411	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;
1412	$self->activate;	1571	$self->activate;
1413	}	1572	}
1414		1573
1415	Coro::cede;
1416
1417	$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	$self
1418	}	1587	}
1419		1588
1420	# find and load all maps in the 3x3 area around a map	1589	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1590	sub load_diag {
1422	my ($map) = @_;	1591	my ($map) = @_;
…		…
1452		1621
1453	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1454	}	1623	}
1455		1624
1456	our %MAP_PREFETCH;	1625	our %MAP_PREFETCH;
1457	our $MAP_PREFETCHER = Coro::async {	1626	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	$map->load;
1467	}
1468	Coro::schedule;
1469	}
1470	};
1471		1627
1472	sub find_async {	1628	sub find_async {
1473	my ($path, $origin) = @_;	1629	my ($path, $origin) = @_;
1474		1630
1475	$path = new cf::path $path, $origin && $origin->path;	1631	$path = normalise $path, $origin && $origin->{path};
1476	my $key = $path->as_string;
1477		1632
1478	if (my $map = $cf::MAP{$key}) {	1633	if (my $map = $cf::MAP{$path}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}	1635	}
1481		1636
1482	$MAP_PREFETCH{$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	};
1483	$MAP_PREFETCHER->ready;	1650	$MAP_PREFETCHER->prio (6);
1484		1651
1485	()	1652	()
1486	}	1653	}
1487		1654
1488	sub save {	1655	sub save {
…		…
1492		1659
1493	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1494		1661
1495	return unless $self->dirty;	1662	return unless $self->dirty;
1496		1663
1497	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		1666
1500	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1501		1668
1502	return if $self->{deny_save};	1669	return if $self->{deny_save};
1503		1670
…		…
1506	cf::async {	1673	cf::async {
1507	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1508	};	1675	};
1509		1676
1510	if ($uniq) {	1677	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	1680	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	1682	}
1516	}	1683	}
1517		1684
1518	sub swap_out {	1685	sub swap_out {
1519	my ($self) = @_;	1686	my ($self) = @_;
…		…
1533		1700
1534	sub reset_at {	1701	sub reset_at {
1535	my ($self) = @_;	1702	my ($self) = @_;
1536		1703
1537	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1539	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1540		1707
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		1710
…		…
1548	my ($self) = @_;	1715	my ($self) = @_;
1549		1716
1550	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1551	}	1718	}
1552		1719
1553	sub unlink_save {
1554	my ($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	$self->save;
1572	}
1573
1574	sub reset {	1720	sub reset {
1575	my ($self) = @_;	1721	my ($self) = @_;
1576		1722
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		1724
1579	return if $self->players;	1725	return if $self->players;
1580	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1581		1727
1582	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1583		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
1584	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1585		1743
1586	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1587		1745
1588	$self->unlink_save;	1746	$self->unlink_save;
1589	$self->destroy;	1747	$self->destroy;
…		…
1592	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1593		1751
1594	sub nuke {	1752	sub nuke {
1595	my ($self) = @_;	1753	my ($self) = @_;
1596		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1600	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1601	}	1768	}
1602		1769
1603	sub customise_for {
1604	my ($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	1770	=item cf::map::unique_maps
1614		1771
1615	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
1616	instantiated unique items. May block.	1773	instantiated unique items. May block.
1617		1774
1618	=cut	1775	=cut
1619		1776
1620	sub unique_maps() {	1777	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1778	my $files = aio_readdir $UNIQUEDIR
1622	or return;	1779	or return;
1623		1780
1624	my @paths;	1781	my @paths;
1625		1782
1626	for (@$files) {	1783	for (@$files) {
1627	utf8::decode $_;	1784	utf8::decode $_;
1628	next if /\.pst$/;	1785	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;	1786	next unless /^$PATH_SEP/o;
1630		1787
1631	push @paths, new cf::path $_;	1788	push @paths, cf::map::normalise $_;
1632	}	1789	}
1633		1790
1634	\@paths	1791	\@paths
1635	}	1792	}
1636		1793
…		…
1711		1868
1712	=item $player_object->enter_link	1869	=item $player_object->enter_link
1713		1870
1714	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}>).
1715		1872
1716	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
1717	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1718		1875
		1876	Will never block.
		1877
1719	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1720		1879
1721	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	1883	fails, to the emergency map position.
1725		1884
1726	Might block.	1885	Might block.
1727		1886
1728	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($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	$LINK_MAP
		1897	}
1729		1898
1730	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1731	my ($self) = @_;	1900	my ($self) = @_;
1732		1901
1733	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1734		1903
1735	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		1905
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	1907	if $self->map;
1739		1908
1740	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	1910	}
1742		1911
1743	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1745		1914
…		…
1767	$map->load;	1936	$map->load;
1768	$map->load_diag;	1937	$map->load_diag;
1769		1938
1770	return unless $self->contr->active;	1939	return unless $self->contr->active;
1771	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1773	}	1944	}
1774		1945
1775	cf::player->attach (	1946	cf::player->attach (
1776	on_logout => sub {	1947	on_logout => sub {
…		…
1789	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes	1961	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1793	(async {	1964	(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,	1965	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "	1966	"There was an internal problem at your last logout, "
1798	. "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.",
1799	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
1800	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1802	})->prio (2);	1973	})->prio (2);
1803	}	1974	}
1804	},	1975	},
…		…
1809	=cut	1980	=cut
1810		1981
1811	sub cf::object::player::goto {	1982	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1813		1984
1814	$path = new cf::path $path;
1815
1816	$self->enter_link;	1985	$self->enter_link;
1817		1986
1818	(async {	1987	(async {
		1988	my $map = eval {
1819	my $map = cf::map::find $path->as_string;	1989	my $map = cf::map::find $path;
1820	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1821		1991	$map
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1823	# if $map;
1824
1825	$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);
1826		1994
1827	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1828	})->prio (1);	1996	})->prio (1);
1829	}	1997	}
1830		1998
…		…
1834		2002
1835	sub parse_random_map_params {	2003	sub parse_random_map_params {
1836	my ($spec) = @_;	2004	my ($spec) = @_;
1837		2005
1838	my $rmp = { # defaults	2006	my $rmp = { # defaults
1839	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1841	};	2011	};
1842		2012
1843	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1845		2015
…		…
1849	$rmp	2019	$rmp
1850	}	2020	}
1851		2021
1852	sub prepare_random_map {	2022	sub prepare_random_map {
1853	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2026
1855	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2029	# that depends on the exit object
1858		2030
1859	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1860		2032
1861	if ($exit->map) {	2033	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1866	}	2038	}
1867		2039
1868	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1869		2041
1870	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1872		2045
1873	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) {
1874	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;
1875		2050
1876	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2052	$exit->msg (undef);
1878	}	2053	}
1879	}	2054	}
1880		2055
1881	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1883		2058
1884	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;
1885		2071
1886	$self->enter_link;	2072	$self->enter_link;
1887		2073
1888	(async {	2074	(async {
1889	$self->deactivate_recursive; # just to be sure	2075	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2076	unless (eval {
1891	prepare_random_map $exit	2077	$self->goto ($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		2078
1897	1;	2079	1;
1898	}) {	2080	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "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. "
1901	. "Please report this to the dungeon master!",	2083	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2085
1904	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2087	$self->leave_link;
1906	}	2088	}
1907	})->prio (1);	2089	})->prio (1);
…		…
1920		2102
1921	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1923		2105
1924	utf8::encode $text;	2106	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2108	}
1927		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	}
1928		2122
1929	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1930		2124
1931	Queues a query to the client, calling the given callback with	2125	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>,	2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1961	# get handled first	2155	# get handled first
1962	my $queue = delete $ns->{query_queue}	2156	my $queue = delete $ns->{query_queue}
1963	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
1964		2158
1965	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2161
1967	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1968		2163
1969	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2165	if (@$queue) {
…		…
2028		2223
2029	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
2030		2225
2031	=pod	2226	=pod
2032		2227
2033	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
2034		2229
2035	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
2036	cf::object::player player	2231	cf::object::player player
2037	cf::player peaceful	2232	cf::player peaceful
2038	cf::map trigger	2233	cf::map trigger
…		…
2123	#############################################################################	2318	#############################################################################
2124		2319
2125	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
2126		2321
2127	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
2128	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2129	excludes objects.	2324	convert to/from binary).
2130		2325
2131	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
2132	using it, it should be unique.	2327	using it, it should be unique.
2133		2328
2134	=over 4	2329	=over 4
2135		2330
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	2331	=item $value = cf::db_get $family => $key
2143		2332
2144	Returns a single value from the database	2333	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		2334
2151	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
2152		2336
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	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		2338
2164	=cut	2339	=cut
2165		2340
2166	our $DB;	2341	our $DB;
2167		2342
2168	{	2343	sub db_init {
2169	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
2170		2346
2171	sub db_load() {	2347	cf::sync_job {
2172	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
2173	}	2349	$DB->set_flags (BDB::CHKSUM);
2174		2350
2175	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2176		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2177	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
2178	waitpid $pid, 0 if $pid;	2354	};
2179	if (0 == ($pid = fork)) {	2355	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	}	2356	};
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	});	2357	}
		2358	}
2197		2359
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {	2360	sub db_get($$) {
2204	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
2209	sub db_put($$;$) {	2371	sub db_put($$$) {
2210	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
2211	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2212	} else {	2374	}
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		2375
2218	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
2219	prio => 10000,	2377
2220	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
2221	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($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 "$src->[$_]: $!";
2222	},	2408	}
2223	);	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"
2224	}	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
2225		2491
2226	#############################################################################	2492	#############################################################################
2227	# 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	}
2228		2581
2229	sub cfg_load {	2582	sub cfg_load {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	2584	or return;
2232		2585
2233	local $/;	2586	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
2235		2588
…		…
2249		2602
2250	sub main {	2603	sub main {
2251	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
2253	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 {
2254	async { Event::one_event };	2608	Event::one_event;
		2609	})->prio (Coro::PRIO_MAX);
2255	};	2610	};
2256		2611
2257	cfg_load;	2612	cfg_load;
2258	db_load;	2613	db_init;
2259	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
2260	Event::loop;	2617	Event::loop;
2261	}	2618	}
2262		2619
2263	#############################################################################	2620	#############################################################################
2264	# initialisation and cleanup	2621	# initialisation and cleanup
2265		2622
2266	# install some emergency cleanup handlers	2623	# install some emergency cleanup handlers
2267	BEGIN {	2624	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	2625	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	2626	Event->signal (
		2627	reentrant => 0,
2270	data => WF_AUTOCANCEL,	2628	data => WF_AUTOCANCEL,
2271	signal => $signal,	2629	signal => $signal,
		2630	prio => 0,
2272	cb => sub {	2631	cb => sub {
2273	cf::cleanup "SIG$signal";	2632	cf::cleanup "SIG$signal";
2274	},	2633	},
2275	);	2634	);
2276	}	2635	}
2277	}	2636	}
…		…
2282	warn "enter emergency perl save\n";	2641	warn "enter emergency perl save\n";
2283		2642
2284	cf::sync_job {	2643	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	2644	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	2645	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	2646	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	2647	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	2648	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	2649	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	2650	$pl->valid or next;
2292	$pl->save;	2651	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	2657	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	2658	$map->valid or next;
2300	$map->save;	2659	$map->save;
2301	}	2660	}
2302	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";
2303	};	2666	};
2304		2667
2305	warn "leave emergency perl save\n";	2668	warn "leave emergency perl save\n";
2306	}	2669	}
2307		2670
		2671	sub post_cleanup {
		2672	my ($make_core) = @_;
		2673
		2674	warn Carp::longmess "post_cleanup backtrace"
		2675	if $make_core;
		2676	}
		2677
2308	sub reload() {	2678	sub do_reload_perl() {
2309	# can/must only be called in main	2679	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2312	return;	2682	return;
2313	}	2683	}
2314		2684
2315	warn "reloading...";	2685	warn "reloading...";
2316		2686
2317	warn "freezing server";	2687	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2320		2693
2321	warn "sync database to disk";	2694	warn "syncing database to disk";
2322	cf::db_sync;	2695	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		2696
2325	eval {
2326	# 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
2327		2698
2328	warn "cancel all watchers";	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	2702	}
2332		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
2333	warn "cancel all extension coros";	2715	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	2717	%EXT_CORO = ();
2336		2718
2337	warn "remove commands";	2719	warn "removing commands";
2338	%COMMAND = ();	2720	%COMMAND = ();
2339		2721
2340	warn "remove ext commands";	2722	warn "removing ext commands";
2341	%EXTCMD = ();	2723	%EXTCMD = ();
2342		2724
2343	warn "unload/nuke all extensions";	2725	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	2726	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	2727	warn "... unloading $pkg";
2346		2728
2347	if (my $cb = $pkg->can ("unload")) {	2729	if (my $cb = $pkg->can ("unload")) {
2348	eval {	2730	eval {
…		…
2353		2735
2354	warn "... nuking $pkg";	2736	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	2737	Symbol::delete_package $pkg;
2356	}	2738	}
2357		2739
2358	warn "unload all perl modules loaded from $LIBDIR";	2740	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		2743
2362	warn "removing <$k>";	2744	warn "... unloading $k";
2363	delete $INC{$k};	2745	delete $INC{$k};
2364		2746
2365	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2367		2749
…		…
2370	}	2752	}
2371		2753
2372	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2373	}	2755	}
2374		2756
2375	warn "get rid of safe::, as good as possible";	2757	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2377	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);
2378		2760
2379	warn "unload cf.pm \"a bit\"";	2761	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2381		2764
2382	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2383	# and global variables created in xs	2766	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2385		2768
		2769	warn "unload completed, starting to reload now";
		2770
2386	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2387	require cf;	2772	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2774
2390	warn "load config and database again";	2775	warn "loading config and database again";
2391	cf::cfg_load;	2776	cf::cfg_load;
2392	cf::db_load;
2393		2777
2394	warn "load extensions";	2778	warn "loading extensions";
2395	cf::load_extensions;	2779	cf::load_extensions;
2396		2780
2397	warn "reattach attachments to objects/players";	2781	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2782	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	2783	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2784	reattach $_ for values %MAP;
2401	};	2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2402		2787
2403	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2404	warn $@;	2792	warn $@;
2405	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2406	exit 1;	2794	exit 1;
2407	}	2795	};
2408		2796
2409	warn "reloaded";	2797	warn "reloaded";
2410	};	2798	};
2411		2799
2412	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2413		2801
2414	unless ($LINK_MAP) {	2802	sub reload_perl() {
2415	$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.
2416		2805
2417	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	2807	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,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2427	cb => sub {	2810	cb => sub {
2428	$_[0]->w->cancel;	2811	do_reload_perl;
2429		2812	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	});	2813	},
2448		2814	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	2815	}
2454		2816
2455	register_command "reload" => sub {	2817	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2457		2819
2458	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2462	}	2823	}
2463	};	2824	};
2464		2825
2465	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	}
2466		2850
2467	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2469	prio => 0,	2854	prio => 0,
2470	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2472	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
2473	$NOW = Event::time;	2864	$NOW = $tick_start = Event::time;
2474		2865
2475	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2476	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2478		2870
2479	$WAIT_FOR_TICK->broadcast;	2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$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;
2481		2890
2482	# 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
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2484		2893
2485	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2486	$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
2487	},	2903	},
2488	);	2904	);
2489		2905
		2906	{
2490	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2491		2908	$BDB_POLL_WATCHER = Event->io (
2492	Event->io (	2909	reentrant => 0,
2493	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2494	poll => 'r',	2911	poll => 'r',
2495	prio => 5,	2912	prio => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2502	after => 0,	2914	cb => \&BDB::poll_cb,
2503	interval => 10,	2915	);
2504	cb => sub {	2916	BDB::min_parallel 8;
2505	(Coro::unblock_sub {	2917
2506	write_runtime	2918	BDB::set_sync_prepare {
2507	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 $@;
2508	})->();	2952	};
2509	},	2953	}
2510	);	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;
2511		3011
2512	END { cf::emergency_save }	3012	END { cf::emergency_save }
2513		3013
2514	1	3014	1
2515		3015

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