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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 1.279 by root, Mon Jun 11 22:16:53 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		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';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		194
148	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	196	# within the Safe compartment.
150	for my $pkg (qw(	197	for my $pkg (qw(
151	cf::global cf::attachable	198	cf::global cf::attachable
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	235	$d
189	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
190	}	237	}
191		238
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
193		240
194	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
195		242
196	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
197		244
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
206		246
207	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
208
209	=cut
210
211	sub to_json($) {
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
213	JSON::Syck::Dump $_[0]
214	}
215		248
216	=item cf::lock_wait $string	249	=item cf::lock_wait $string
217		250
218	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
219		252
…		…
225	returned.	258	returned.
226		259
227	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
229		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
230	=cut	267	=cut
231		268
232	our %LOCK;	269	our %LOCK;
233		270
234	sub lock_wait($) {	271	sub lock_wait($) {
…		…
253	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
255	}	292	}
256	}	293	}
257		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
258	sub freeze_mainloop {	301	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
260		303
261	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
262	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
263	$guard	308	$guard
264	}	309	}
265		310
266	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
288		333
289	sub sync_job(&) {	334	sub sync_job(&) {
290	my ($job) = @_;	335	my ($job) = @_;
291		336
292	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
293	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
295		342
296	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
308		355
309	while ($busy) {	356	while ($busy) {
310	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
311	}	358	}
312		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
313	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
314	} else {	368	} else {
315	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
316		370
317	$job->()	371	$job->()
…		…
337		391
338	$coro	392	$coro
339	}	393	}
340		394
341	sub write_runtime {	395	sub write_runtime {
342	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
343		404
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
345	or return;	406	or return;
346		407
		408	my $value = $cf::RUNTIME + 90 + 10;
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;	413	and return;
350		414
		415	# always fsync - this file is important
351	aio_fsync $fh	416	aio_fsync $fh
352	and return;	417	and return;
353		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
354	close $fh	422	close $fh
355	or return;	423	or return;
356		424
357	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
358	and return;	426	and return;
359		427
		428	warn "runtime file written.\n";
		429
360	1	430	1
361	}	431	}
362		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
363	=back	444	=back
364		445
365	=cut	446	=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		447
543	#############################################################################	448	#############################################################################
544		449
545	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
546		451
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	578	our @CB_MAP = ();
674		579
675	my %attachment;	580	my %attachment;
676		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
677	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
679		590
680	use sort 'stable';	591	use sort 'stable';
681		592
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
716		627
717	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		632
722	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	634	my $pkg = shift @arg;
724		635
725	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
766	if (ref $_[0]) {	677	if (ref $_[0]) {
767	_object_attach @_;	678	_object_attach @_;
768	} else {	679	} else {
769	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
770	}	681	}
		682	_recalc_want;
771	};	683	};
772		684
773	# all those should be optimised	685	# all those should be optimised
774	sub cf::attachable::detach {	686	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
779	reattach ($obj);	691	reattach ($obj);
780	} else {	692	} else {
781	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
782	}	694	}
		695	_recalc_want;
783	};	696	};
784		697
785	sub cf::attachable::attached {	698	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
787		700
…		…
852	# object support	765	# object support
853		766
854	sub reattach {	767	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		772
858	my $registry = $obj->registry;	773	my $registry = $obj->registry;
859		774
860	@$registry = ();	775	@$registry = ();
861		776
…		…
908	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
909		824
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	829	close $fh;
915		830
916	if (@$objs) {	831	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	837	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
924	}	839	}
925	} else {	840	} else {
926	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
958	or return;	873	or return;
959	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
960	}	875	}
961		876
962	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
964	return ($data, $av);	879	return ($data, $av);
965	}	880	}
966		881
967	#############################################################################	882	#############################################################################
968	# command handling &c	883	# command handling &c
…		…
1028		943
1029	cf::override;	944	cf::override;
1030	},	945	},
1031	);	946	);
1032		947
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
1061	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	953	next unless -r $path;
1063	eval {	954
1064	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
1065	1	1012	}
1066	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
1067	}	1018	};
1068	}	1019	}
1069		1020
1070	#############################################################################	1021	#############################################################################
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		1022
1086	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
1087		1024
1088	Functions and methods that extend core crossfire objects.	1025	Functions and methods that extend core crossfire objects.
1089		1026
…		…
1102	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
1103		1040
1104	=cut	1041	=cut
1105		1042
1106	sub playerdir($) {	1043	sub playerdir($) {
1107	cf::localdir	1044	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1046	}
1113		1047
1114	sub path($) {	1048	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1050
1117	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
1118	}	1052	}
1119		1053
1120	sub find_active($) {	1054	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
1125		1059
1126	sub exists($) {	1060	sub exists($) {
1127	my ($login) = @_;	1061	my ($login) = @_;
1128		1062
1129	$cf::PLAYER{$login}	1063	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1064	or cf::sync_job { !aio_stat path $login }
1131	}	1065	}
1132		1066
1133	sub find($) {	1067	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1068	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1069	my $login = $_[0];
1136		1070
1137	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
1138		1072
1139	$cf::PLAYER{$_[0]} || do {	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
1140	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
1141	or return;	1082	or return;
1142	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
1143	}	1084	}
1144	}	1085	}
…		…
1181		1122
1182	=cut	1123	=cut
1183		1124
1184	sub quit_character {	1125	sub quit_character {
1185	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1186		1129
1187	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1132
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1140	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1142	$pl->destroy;
		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
1200	IO::AIO::aio_rmtree $temp;	1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
1201	}	1164	}
1202		1165
1203	=item cf::player::list_logins	1166	=item cf::player::list_logins
1204		1167
1205	Returns am arrayref of all valid playernames in the system, can take a	1168	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1207		1170
1208	=cut	1171	=cut
1209		1172
1210	sub list_logins {	1173	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1175	or return [];
1213		1176
1214	my @logins;	1177	my @logins;
1215		1178
1216	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1225	\@logins	1188	\@logins
1226	}	1189	}
1227		1190
1228	=item $player->maps	1191	=item $player->maps
1229		1192
1230	Returns an arrayref of cf::path's of all maps that are private for this	1193	Returns an arrayref of map paths that are private for this
1231	player. May block.	1194	player. May block.
1232		1195
1233	=cut	1196	=cut
1234		1197
1235	sub maps($) {	1198	sub maps($) {
1236	my ($pl) = @_;	1199	my ($pl) = @_;
		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1202
1238	my $files = aio_readdir playerdir $pl	1203	my $files = aio_readdir playerdir $pl
1239	or return;	1204	or return;
1240		1205
1241	my @paths;	1206	my @paths;
…		…
1243	for (@$files) {	1208	for (@$files) {
1244	utf8::decode $_;	1209	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1210	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1211	next unless /^$PATH_SEP/o;
1247		1212
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1213	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1214	}
1250		1215
1251	\@paths	1216	\@paths
1252	}	1217	}
1253		1218
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1255		1220
1256	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1257		1222
1258	=cut	1223	=cut
1259		1224
1260	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1262		1227
1263	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1264		1229
1265	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1266	}	1231	}
1267		1232
1268	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1269		1273
1270	=back	1274	=back
1271
1272		1275
1273	=head3 cf::map	1276	=head3 cf::map
1274		1277
1275	=over 4	1278	=over 4
1276		1279
…		…
1279	package cf::map;	1282	package cf::map;
1280		1283
1281	use Fcntl;	1284	use Fcntl;
1282	use Coro::AIO;	1285	use Coro::AIO;
1283		1286
		1287	use overload
		1288	'""' => \&as_string,
		1289	fallback => 1;
		1290
1284	our $MAX_RESET = 3600;	1291	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1292	our $DEFAULT_RESET = 3000;
1286		1293
1287	sub generate_random_map {	1294	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1297	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1301	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1302	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1308	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1309	)
1305	}	1310	}
1306		1311
		1312	=item cf::map->register ($regex, $prio)
		1313
		1314	Register a handler for the map path matching the given regex at the
		1315	givne priority (higher is better, built-in handlers have priority 0, the
		1316	default).
		1317
		1318	=cut
		1319
		1320	sub register {
		1321	my (undef, $regex, $prio) = @_;
		1322	my $pkg = caller;
		1323
		1324	no strict;
		1325	push @{"$pkg\::ISA"}, __PACKAGE__;
		1326
		1327	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1328	}
		1329
		1330	# also paths starting with '/'
		1331	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1332
		1333	sub thawer_merge {
		1334	my ($self, $merge) = @_;
		1335
		1336	# we have to keep some variables in memory intact
		1337	local $self->{path};
		1338	local $self->{load_path};
		1339
		1340	$self->SUPER::thawer_merge ($merge);
		1341	}
		1342
		1343	sub normalise {
		1344	my ($path, $base) = @_;
		1345
		1346	$path = "$path"; # make sure its a string
		1347
		1348	$path =~ s/\.map$//;
		1349
		1350	# map plan:
		1351	#
		1352	# /! non-realised random map exit (special hack!)
		1353	# {... are special paths that are not being touched
		1354	# ?xxx/... are special absolute paths
		1355	# ?random/... random maps
		1356	# /... normal maps
		1357	# ~user/... per-player map of a specific user
		1358
		1359	$path =~ s/$PATH_SEP/\//go;
		1360
		1361	# treat it as relative path if it starts with
		1362	# something that looks reasonable
		1363	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1364	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1365
		1366	$base =~ s{[^/]+/?$}{};
		1367	$path = "$base/$path";
		1368	}
		1369
		1370	for ($path) {
		1371	redo if s{//}{/};
		1372	redo if s{/\.?/}{/};
		1373	redo if s{/[^/]+/\.\./}{/};
		1374	}
		1375
		1376	$path
		1377	}
		1378
		1379	sub new_from_path {
		1380	my (undef, $path, $base) = @_;
		1381
		1382	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1383
		1384	$path = normalise $path, $base;
		1385
		1386	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1387	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1388	my $self = bless cf::map::new, $pkg;
		1389	$self->{path} = $path; $self->path ($path);
		1390	$self->init; # pass $1 etc.
		1391	return $self;
		1392	}
		1393	}
		1394
		1395	Carp::carp "unable to resolve path '$path' (base '$base').";
		1396	()
		1397	}
		1398
		1399	sub init {
		1400	my ($self) = @_;
		1401
		1402	$self
		1403	}
		1404
		1405	sub as_string {
		1406	my ($self) = @_;
		1407
		1408	"$self->{path}"
		1409	}
		1410
		1411	# the displayed name, this is a one way mapping
		1412	sub visible_name {
		1413	&as_string
		1414	}
		1415
		1416	# the original (read-only) location
		1417	sub load_path {
		1418	my ($self) = @_;
		1419
		1420	"$MAPDIR/$self->{path}.map"
		1421	}
		1422
		1423	# the temporary/swap location
		1424	sub save_path {
		1425	my ($self) = @_;
		1426
		1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1428	"$TMPDIR/$path.map"
		1429	}
		1430
		1431	# the unique path, undef == no special unique path
		1432	sub uniq_path {
		1433	my ($self) = @_;
		1434
		1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1436	"$UNIQUEDIR/$path"
		1437	}
		1438
1307	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1308	# all maps in C++...	1440	# all maps in C++...
1309	sub change_all_map_light {	1441	sub change_all_map_light {
1310	my ($change) = @_;	1442	my ($change) = @_;
1311		1443
1312	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1314	}	1446	}
1315		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
		1456	sub unlink_save {
		1457	my ($self) = @_;
		1458
		1459	utf8::encode (my $save = $self->save_path);
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1462	}
		1463
1316	sub load_map_header($) {	1464	sub load_header_from($) {
1317	my ($path) = @_;	1465	my ($self, $path) = @_;
1318		1466
1319	utf8::encode $path;	1467	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
		1469	# or return;
		1470
		1471	$self->_load_header ($path)
1321	or return;	1472	or return;
1322		1473
1323	my $map = cf::map::new	1474	$self->{load_path} = $path;
		1475
		1476	1
		1477	}
		1478
		1479	sub load_header_orig {
		1480	my ($self) = @_;
		1481
		1482	$self->load_header_from ($self->load_path)
		1483	}
		1484
		1485	sub load_header_temp {
		1486	my ($self) = @_;
		1487
		1488	$self->load_header_from ($self->save_path)
		1489	}
		1490
		1491	sub prepare_temp {
		1492	my ($self) = @_;
		1493
		1494	$self->last_access ((delete $self->{last_access})
		1495	|| $cf::RUNTIME); #d#
		1496	# safety
		1497	$self->{instantiate_time} = $cf::RUNTIME
		1498	if $self->{instantiate_time} > $cf::RUNTIME;
		1499	}
		1500
		1501	sub prepare_orig {
		1502	my ($self) = @_;
		1503
		1504	$self->{load_original} = 1;
		1505	$self->{instantiate_time} = $cf::RUNTIME;
		1506	$self->last_access ($cf::RUNTIME);
		1507	$self->instantiate;
		1508	}
		1509
		1510	sub load_header {
		1511	my ($self) = @_;
		1512
		1513	if ($self->load_header_temp) {
		1514	$self->prepare_temp;
		1515	} else {
		1516	$self->load_header_orig
1324	or return;	1517	or return;
		1518	$self->prepare_orig;
		1519	}
1325		1520
1326	# for better error messages only, will be overwritten later	1521	$self->{deny_reset} = 1
1327	$map->path ($path);	1522	if $self->no_reset;
1328		1523
1329	$map->load_header ($path)	1524	$self->default_region (cf::region::find_by_path $self->{path})
1330	or return;	1525	unless $self->default_region;
1331		1526
1332	$map->{load_path} = $path;	1527	1
1333
1334	$map
1335	}	1528	}
1336		1529
1337	sub find;	1530	sub find;
1338	sub find {	1531	sub find {
1339	my ($path, $origin) = @_;	1532	my ($path, $origin) = @_;
1340		1533
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1534	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1535
1346	cf::lock_wait "map_find:$key";	1536	cf::lock_wait "map_find:$path";
1347		1537
1348	$cf::MAP{$key} || do {	1538	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1539	my $guard = cf::lock_acquire "map_find:$path";
1350		1540	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;	1541	or return;
1365		1542
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;	1543	$map->{last_save} = $cf::RUNTIME;
1378		1544
1379	Coro::cede;	1545	$map->load_header
		1546	or return;
1380		1547
1381	if ($map->should_reset) {	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1549	# doing this can freeze the server in a sync job, obviously
		1550	#$cf::WAIT_FOR_TICK->wait;
1382	$map->reset;	1551	$map->reset;
1383	undef $guard;	1552	undef $guard;
1384	$map = find $path	1553	return find $path;
1385	or return;
1386	}	1554	}
1387		1555
1388	$cf::MAP{$key} = $map	1556	$cf::MAP{$path} = $map
1389	}	1557	}
1390	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1391		1562
1392	sub load {	1563	sub load {
1393	my ($self) = @_;	1564	my ($self) = @_;
1394		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1395	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1571	my $guard = cf::lock_acquire "map_load:$path";
1397		1572
1398	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1399		1574
1400	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1401		1576
1402	$self->alloc;	1577	$self->alloc;
		1578
		1579	$self->pre_load;
		1580	Coro::cede;
		1581
1403	$self->load_objects ($self->{load_path}, 1)	1582	$self->_load_objects ($self->{load_path}, 1)
1404	or return;	1583	or return;
1405		1584
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	1586	if delete $self->{load_original};
1408		1587
1409	if (my $uniq = $path->uniq_path) {	1588	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	1589	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	1590	if (aio_open $uniq, O_RDONLY, 0) {
1412	$self->clear_unique_items;	1591	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	1592	$self->_load_objects ($uniq, 0);
1414	}	1593	}
1415	}	1594	}
1416		1595
1417	Coro::cede;	1596	Coro::cede;
1418
1419	# now do the right thing for maps	1597	# now do the right thing for maps
1420	$self->link_multipart_objects;	1598	$self->link_multipart_objects;
1421
1422	if ($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)	1599	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	1600	unless $self->difficulty;
		1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1432	$self->activate;	1610	$self->activate;
1433	}	1611	}
1434		1612
1435	Coro::cede;
1436
1437	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
		1614	}
		1615
		1616	$self->post_load;
		1617	}
		1618
		1619	sub customise_for {
		1620	my ($self, $ob) = @_;
		1621
		1622	return find "~" . $ob->name . "/" . $self->{path}
		1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
		1627
		1628	$self
1438	}	1629	}
1439		1630
1440	# find and load all maps in the 3x3 area around a map	1631	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	1632	sub load_diag {
1442	my ($map) = @_;	1633	my ($map) = @_;
…		…
1472		1663
1473	cf::sync_job { $map->load };	1664	cf::sync_job { $map->load };
1474	}	1665	}
1475		1666
1476	our %MAP_PREFETCH;	1667	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = Coro::async {	1668	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	$map->load;
1487	}
1488	Coro::schedule;
1489	}
1490	};
1491		1669
1492	sub find_async {	1670	sub find_async {
1493	my ($path, $origin) = @_;	1671	my ($path, $origin) = @_;
1494		1672
1495	$path = new cf::path $path, $origin && $origin->path;	1673	$path = normalise $path, $origin && $origin->{path};
1496	my $key = $path->as_string;
1497		1674
1498	if (my $map = $cf::MAP{$key}) {	1675	if (my $map = $cf::MAP{$path}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}	1677	}
1501		1678
1502	$MAP_PREFETCH{$key} = $path;	1679	undef $MAP_PREFETCH{$path};
		1680	$MAP_PREFETCHER ||= cf::async {
		1681	while (%MAP_PREFETCH) {
		1682	for my $path (keys %MAP_PREFETCH) {
		1683	my $map = find $path
		1684	or next;
		1685	$map->load;
		1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
		1691	};
1503	$MAP_PREFETCHER->ready;	1692	$MAP_PREFETCHER->prio (6);
1504		1693
1505	()	1694	()
1506	}	1695	}
1507		1696
1508	sub save {	1697	sub save {
…		…
1512		1701
1513	$self->{last_save} = $cf::RUNTIME;	1702	$self->{last_save} = $cf::RUNTIME;
1514		1703
1515	return unless $self->dirty;	1704	return unless $self->dirty;
1516		1705
1517	my $save = $self->{path}->save_path; utf8::encode $save;	1706	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1707	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		1708
1520	$self->{load_path} = $save;	1709	$self->{load_path} = $save;
1521		1710
1522	return if $self->{deny_save};	1711	return if $self->{deny_save};
1523		1712
…		…
1526	cf::async {	1715	cf::async {
1527	$_->contr->save for $self->players;	1716	$_->contr->save for $self->players;
1528	};	1717	};
1529		1718
1530	if ($uniq) {	1719	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	1721	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	1722	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1723	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	1724	}
1536	}	1725	}
1537		1726
1538	sub swap_out {	1727	sub swap_out {
1539	my ($self) = @_;	1728	my ($self) = @_;
…		…
1553		1742
1554	sub reset_at {	1743	sub reset_at {
1555	my ($self) = @_;	1744	my ($self) = @_;
1556		1745
1557	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1560		1748
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		1751
…		…
1568	my ($self) = @_;	1756	my ($self) = @_;
1569		1757
1570	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1571	}	1759	}
1572		1760
1573	sub rename {
1574	my ($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	$self->save;
1584	}
1585
1586	sub reset {	1761	sub reset {
1587	my ($self) = @_;	1762	my ($self) = @_;
1588		1763
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		1765
1591	return if $self->players;	1766	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		1767
1594	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1595		1779
1596	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
1597		1781
		1782	$self->clear;
		1783
1598	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1599		1785
1600	$self->{path}->unlink_save;	1786	$self->unlink_save;
1601	$self->destroy;	1787	$self->destroy;
1602	}	1788	}
1603		1789
1604	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1605		1791
1606	sub nuke {	1792	sub nuke {
1607	my ($self) = @_;	1793	my ($self) = @_;
1608		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1612	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1613	}	1808	}
1614		1809
		1810	=item $maps = cf::map::tmp_maps
		1811
		1812	Returns an arrayref with all map paths of currently instantiated and saved
		1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
		1818	[
		1819	map {
		1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
		1826	}
		1827
		1828	=item $maps = cf::map::random_maps
		1829
		1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
		1832
		1833	=cut
		1834
		1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
		1844	}
		1845
1615	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1616		1847
1617	Returns an arrayref of cf::path's of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	1849	instantiated unique items. May block.
1619		1850
1620	=cut	1851	=cut
1621		1852
1622	sub unique_maps() {	1853	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1624	or return;	1855	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	1856	utf8::decode $_;
1630	next if /\.pst$/;	1857	/\.map$/
1631	next unless /^$PATH_SEP/o;	1858	? normalise $_
1632		1859	: ()
1633	push @paths, new cf::path $_;	1860	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	1861	]
1635
1636	\@paths
1637	}	1862	}
1638		1863
1639	package cf;	1864	package cf;
1640		1865
1641	=back	1866	=back
…		…
1713		1938
1714	=item $player_object->enter_link	1939	=item $player_object->enter_link
1715		1940
1716	Freezes the player and moves him/her to a special map (C<{link}>).	1941	Freezes the player and moves him/her to a special map (C<{link}>).
1717		1942
1718	The player should be reaosnably safe there for short amounts of time. You	1943	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.	1944	I<MUST> call C<leave_link> as soon as possible, though.
1720		1945
		1946	Will never block.
		1947
1721	=item $player_object->leave_link ($map, $x, $y)	1948	=item $player_object->leave_link ($map, $x, $y)
1722		1949
1723	Moves the player out of the specila link map onto the given map. If the	1950	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	1951	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	1952	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	1953	fails, to the emergency map position.
1727		1954
1728	Might block.	1955	Might block.
1729		1956
1730	=cut	1957	=cut
		1958
		1959	sub link_map {
		1960	unless ($LINK_MAP) {
		1961	$LINK_MAP = cf::map::find "{link}"
		1962	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1963	$LINK_MAP->load;
		1964	}
		1965
		1966	$LINK_MAP
		1967	}
1731		1968
1732	sub cf::object::player::enter_link {	1969	sub cf::object::player::enter_link {
1733	my ($self) = @_;	1970	my ($self) = @_;
1734		1971
1735	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1736		1973
1737	return if $self->map == $LINK_MAP;	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		1975
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1741		1978
1742	$self->enter_map ($LINK_MAP, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	1980	}
1744		1981
1745	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1747		1986
1748	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1749		1988
1750	unless ($map) {	1989	unless ($map) {
1751	# restore original map position	1990	# restore original map position
…		…
1769	$map->load;	2008	$map->load;
1770	$map->load_diag;	2009	$map->load_diag;
1771		2010
1772	return unless $self->contr->active;	2011	return unless $self->contr->active;
1773	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1775	}	2016	}
1776		2017
1777	cf::player->attach (
1778	on_logout => sub {
1779	my ($pl) = @_;
1780
1781	# abort map switching before logout
1782	if ($pl->ob->{_link_pos}) {
1783	cf::sync_job {
1784	$pl->ob->leave_link
1785	};
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(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,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1810		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1811	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1812		2028
1813	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
1815		2031
1816	$path = new cf::path $path;	2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2034
1818	$self->enter_link;	2035	$self->enter_link;
1819		2036
1820	(async {	2037	(async {
		2038	my $map = eval {
1821	my $map = cf::map::find $path->as_string;	2039	my $map = cf::map::find $path;
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2040
1824	# warn "entering ", $map->path, " at ($x, $y)\n"
1825	# if $map;	2041	if ($map) {
1826		2042	$map = $map->customise_for ($self);
		2043	$map = $check->($map) if $check && $map;
		2044	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
1828		2047
		2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
		2054	}
		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1830	})->prio (1);	2060	})->prio (1);
1831	}	2061	}
1832		2062
1833	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1834		2064
…		…
1836		2066
1837	sub parse_random_map_params {	2067	sub parse_random_map_params {
1838	my ($spec) = @_;	2068	my ($spec) = @_;
1839		2069
1840	my $rmp = { # defaults	2070	my $rmp = { # defaults
1841	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1843	};	2075	};
1844		2076
1845	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1847		2079
…		…
1851	$rmp	2083	$rmp
1852	}	2084	}
1853		2085
1854	sub prepare_random_map {	2086	sub prepare_random_map {
1855	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2090
1857	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2093	# that depends on the exit object
1860		2094
1861	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1862		2096
1863	if ($exit->map) {	2097	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1868	}	2102	}
1869		2103
1870	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1871		2105
1872	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1874		2109
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
		2112	undef $fh;
		2113	aio_rename "$meta~", $meta;
1877		2114
1878	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2116	$exit->msg (undef);
1880	}	2117	}
1881	}	2118	}
1882		2119
1883	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1885		2122
1886	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
		2124
		2125	if ($exit->slaying eq "/!") {
		2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
		2129	cf::sync_job { prepare_random_map $exit };
		2130	}
		2131
		2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2133	my $hp = $exit->stats->hp;
		2134	my $sp = $exit->stats->sp;
1887		2135
1888	$self->enter_link;	2136	$self->enter_link;
1889		2137
1890	(async {	2138	(async {
1891	$self->deactivate_recursive; # just to be sure	2139	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2140	unless (eval {
1893	prepare_random_map $exit	2141	$self->goto ($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		2142
1899	1;	2143	1;
1900	}) {	2144	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2149
1906	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2151	$self->leave_link;
1908	}	2152	}
1909	})->prio (1);	2153	})->prio (1);
…		…
1922		2166
1923	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1925		2169
1926	utf8::encode $text;	2170	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2172	}
1929		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1930		2186
1931	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1932		2188
1933	Queues a query to the client, calling the given callback with	2189	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>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1963	# get handled first	2219	# get handled first
1964	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2222
1967	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2225
1969	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1970		2227
1971	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2229	if (@$queue) {
…		…
2030		2287
2031	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
2032		2289
2033	=pod	2290	=pod
2034		2291
2035	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
2036		2293
2037	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
2038	cf::object::player player	2295	cf::object::player player
2039	cf::player peaceful	2296	cf::player peaceful
2040	cf::map trigger	2297	cf::map trigger
…		…
2125	#############################################################################	2382	#############################################################################
2126		2383
2127	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2128		2385
2129	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2130	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2131	excludes objects.	2388	convert to/from binary).
2132		2389
2133	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
2134	using it, it should be unique.	2391	using it, it should be unique.
2135		2392
2136	=over 4	2393	=over 4
2137		2394
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	2395	=item $value = cf::db_get $family => $key
2145		2396
2146	Returns a single value from the database	2397	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		2398
2153	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2154		2400
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	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		2402
2166	=cut	2403	=cut
2167		2404
2168	our $DB;	2405	our $DB;
2169		2406
2170	{	2407	sub db_init {
2171	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2172		2410
2173	sub db_load() {	2411	cf::sync_job {
2174	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2175	}	2413	$DB->set_flags (BDB::CHKSUM);
2176		2414
2177	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2178		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2179	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2180	waitpid $pid, 0 if $pid;	2418	};
2181	if (0 == ($pid = fork)) {	2419	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	}	2420	};
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	});	2421	}
		2422	}
2199		2423
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}
2204
2205	sub db_get($;$) {	2424	sub db_get($$) {
2206	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2211	sub db_put($$;$) {	2435	sub db_put($$$) {
2212	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2213	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2214	} else {	2438	}
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219		2439
2220	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2221	prio => 10000,	2441
2222	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2223	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
2224	},	2472	}
2225	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2226	}	2552	}
2227		2553
2228	#############################################################################	2554	#############################################################################
2229	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
2230		2644
2231	sub cfg_load {	2645	sub cfg_load {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	2647	or return;
2234		2648
2235	local $/;	2649	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2237		2651
…		…
2251		2665
2252	sub main {	2666	sub main {
2253	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2670	(async {
2256	async { Event::one_event };	2671	Event::one_event;
		2672	})->prio (Coro::PRIO_MAX);
2257	};	2673	};
2258		2674
2259	cfg_load;	2675	cfg_load;
2260	db_load;	2676	db_init;
2261	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
2262	Event::loop;	2680	Event::loop;
2263	}	2681	}
2264		2682
2265	#############################################################################	2683	#############################################################################
2266	# initialisation and cleanup	2684	# initialisation and cleanup
2267		2685
2268	# install some emergency cleanup handlers	2686	# install some emergency cleanup handlers
2269	BEGIN {	2687	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	2688	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	2689	Event->signal (
		2690	reentrant => 0,
2272	data => WF_AUTOCANCEL,	2691	data => WF_AUTOCANCEL,
2273	signal => $signal,	2692	signal => $signal,
		2693	prio => 0,
2274	cb => sub {	2694	cb => sub {
2275	cf::cleanup "SIG$signal";	2695	cf::cleanup "SIG$signal";
2276	},	2696	},
2277	);	2697	);
2278	}	2698	}
2279	}	2699	}
…		…
2284	warn "enter emergency perl save\n";	2704	warn "enter emergency perl save\n";
2285		2705
2286	cf::sync_job {	2706	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	2707	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	2708	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	2709	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	2710	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	2711	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	2712	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	2713	$pl->valid or next;
2294	$pl->save;	2714	$pl->save;
…		…
2300	my $map = $cf::MAP{$path} or next;	2720	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	2721	$map->valid or next;
2302	$map->save;	2722	$map->save;
2303	}	2723	}
2304	warn "end emergency map save\n";	2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
2305	};	2729	};
2306		2730
2307	warn "leave emergency perl save\n";	2731	warn "leave emergency perl save\n";
2308	}	2732	}
2309		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2310	sub reload() {	2741	sub do_reload_perl() {
2311	# can/must only be called in main	2742	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2314	return;	2745	return;
2315	}	2746	}
2316		2747
2317	warn "reloading...";	2748	warn "reloading...";
2318		2749
2319	warn "freezing server";	2750	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2322		2756
2323	warn "sync database to disk";	2757	warn "syncing database to disk";
2324	cf::db_sync;	2758	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		2759
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2329		2761
2330	warn "cancel all watchers";	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	2765	}
2334		2766
		2767	warn "flushing outstanding aio requests";
		2768	for (;;) {
		2769	BDB::flush;
		2770	IO::AIO::flush;
		2771	Coro::cede;
		2772	last unless IO::AIO::nreqs || BDB::nreqs;
		2773	warn "iterate...";
		2774	}
		2775
		2776	++$RELOAD;
		2777
2335	warn "cancel all extension coros";	2778	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	2780	%EXT_CORO = ();
2338		2781
2339	warn "remove commands";	2782	warn "removing commands";
2340	%COMMAND = ();	2783	%COMMAND = ();
2341		2784
2342	warn "remove ext commands";	2785	warn "removing ext commands";
2343	%EXTCMD = ();	2786	%EXTCMD = ();
2344		2787
2345	warn "unload/nuke all extensions";	2788	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	2789	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	2790	warn "... unloading $pkg";
2348		2791
2349	if (my $cb = $pkg->can ("unload")) {	2792	if (my $cb = $pkg->can ("unload")) {
2350	eval {	2793	eval {
…		…
2355		2798
2356	warn "... nuking $pkg";	2799	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	2800	Symbol::delete_package $pkg;
2358	}	2801	}
2359		2802
2360	warn "unload all perl modules loaded from $LIBDIR";	2803	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		2806
2364	warn "removing <$k>";	2807	warn "... unloading $k";
2365	delete $INC{$k};	2808	delete $INC{$k};
2366		2809
2367	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2369		2812
…		…
2372	}	2815	}
2373		2816
2374	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2375	}	2818	}
2376		2819
2377	warn "get rid of safe::, as good as possible";	2820	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		2823
2381	warn "unload cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2383		2827
2384	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2385	# and global variables created in xs	2829	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2387		2831
		2832	warn "unload completed, starting to reload now";
		2833
2388	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2389	require cf;	2835	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		2837
2392	warn "load config and database again";	2838	warn "loading config and database again";
2393	cf::cfg_load;	2839	cf::cfg_load;
2394	cf::db_load;
2395		2840
2396	warn "load extensions";	2841	warn "loading extensions";
2397	cf::load_extensions;	2842	cf::load_extensions;
2398		2843
2399	warn "reattach attachments to objects/players";	2844	warn "reattaching attachments to objects/players";
2400	_global_reattach;	2845	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	2846	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
2403	};	2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2404		2850
2405	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2406	warn $@;	2855	warn $@;
2407	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2408	exit 1;	2857	exit 1;
2409	}	2858	};
2410		2859
2411	warn "reloaded";	2860	warn "reloaded";
2412	};	2861	};
2413		2862
2414	#############################################################################	2863	our $RELOAD_WATCHER; # used only during reload
2415		2864
2416	unless ($LINK_MAP) {	2865	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
2418		2868
2419	$LINK_MAP->width (41);	2869	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	2870	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,	2871	after => 0,
		2872	data => WF_AUTOCANCEL,
2429	cb => sub {	2873	cb => sub {
2430	$_[0]->w->cancel;	2874	do_reload_perl;
2431		2875	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	});	2876	},
2450		2877	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	2878	}
2456		2879
2457	register_command "reload" => sub {	2880	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2459		2882
2460	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2464	}	2886	}
2465	};	2887	};
2466		2888
2467	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2468		2890
		2891	my $bug_warning = 0;
		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2469	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2471	prio => 0,	2919	prio => 0,
2472	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2474	cb => sub {	2922	cb => sub {
		2923	if ($Coro::current != $Coro::main) {
		2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2925	unless ++$bug_warning > 10;
		2926	return;
		2927	}
		2928
2475	$NOW = Event::time;	2929	$NOW = $tick_start = Event::time;
2476		2930
2477	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2478	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2480		2958
2481	$WAIT_FOR_TICK->broadcast;	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2961	Coro::async_pool {
		2962	write_runtime
		2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
		2965	}
		2966
		2967	# my $AFTER = Event::time;
		2968	# warn $AFTER - $NOW;#d#
		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
2483		2978
2484	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		2981
2487	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2489	},	2991	},
2490	);	2992	);
2491		2993
		2994	{
2492	IO::AIO::max_poll_time $TICK * 0.2;	2995	BDB::max_poll_time $TICK * 0.1;
2493		2996	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	2997	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	2998	fd => BDB::poll_fileno,
2496	poll => 'r',	2999	poll => 'r',
2497	prio => 5,	3000	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	3001	data => WF_AUTOCANCEL,
2504	after => 0,	3002	cb => \&BDB::poll_cb,
2505	interval => 10,	3003	);
2506	cb => sub {	3004	BDB::min_parallel 8;
2507	(Coro::unblock_sub {	3005
2508	write_runtime	3006	BDB::set_sync_prepare {
2509	or warn "ERROR: unable to write runtime file: $!";	3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
2510	})->();	3040	};
2511	},	3041	}
2512	);	3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
		3048	IO::AIO::max_poll_time $TICK * 0.1;
		3049	$AIO_POLL_WATCHER = Event->io (
		3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
		3052	fd => IO::AIO::poll_fileno,
		3053	poll => 'r',
		3054	prio => 6,
		3055	cb => \&IO::AIO::poll_cb,
		3056	);
		3057	}
		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
		3094	}
		3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2513		3099
2514	END { cf::emergency_save }	3100	END { cf::emergency_save }
2515		3101
2516	1	3102	1
2517		3103

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