ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.202 by root, Mon Jan 29 20:16:28 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.5 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
10	use IO::AIO ();	23	use IO::AIO 2.32 ();
11	use YAML::Syck ();	24	use YAML::Syck ();
12	use Time::HiRes;	25	use Time::HiRes;
13	use Event;	26
14	$Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
18		33
19	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		35
23	our %COMMAND = ();	36	our %COMMAND = ();
24	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	40	our %EXTCMD = ();
26		41	our %EXT_CORO = (); # coroutines bound to extensions
27	_init_vars;	42	our %EXT_MAP = (); # pluggable maps
28		43
29	our @EVENT;	44	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
31		46
32	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
34	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
35		53
36	our %CFG;	54	our %CFG;
37		55
38	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
		87
		88	sub cf::map::normalise;
39		89
40	#############################################################################	90	#############################################################################
41		91
42	=head2 GLOBAL VARIABLES	92	=head2 GLOBAL VARIABLES
43		93
44	=over 4	94	=over 4
45		95
46	=item $cf::UPTIME	96	=item $cf::UPTIME
47		97
48	The timestamp of the server start (so not actually an uptime).	98	The timestamp of the server start (so not actually an uptime).
		99
		100	=item $cf::RUNTIME
		101
		102	The time this server has run, starts at 0 and is increased by $cf::TICK on
		103	every server tick.
49		104
50	=item $cf::LIBDIR	105	=item $cf::LIBDIR
51		106
52	The perl library directory, where extensions and cf-specific modules can	107	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	108	be found. It will be added to C<@INC> automatically.
54		109
		110	=item $cf::NOW
		111
		112	The time of the last (current) server tick.
		113
55	=item $cf::TICK	114	=item $cf::TICK
56		115
57	The interval between server ticks, in seconds.	116	The interval between server ticks, in seconds.
58		117
59	=item %cf::CFG	118	=item %cf::CFG
60		119
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	120	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	121	from wherever your confdir points to.
		122
		123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		124
		125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		127	processing has been done. Call C<< ->wait >> on them to maximise the
		128	window of cpu time available, or simply to synchronise to the server tick.
63		129
64	=back	130	=back
65		131
66	=cut	132	=cut
67		133
68	BEGIN {	134	BEGIN {
69	*CORE::GLOBAL::warn = sub {	135	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	136	my $msg = join "", @_;
		137	utf8::encode $msg;
		138
71	$msg .= "\n"	139	$msg .= "\n"
72	unless $msg =~ /\n$/;	140	unless $msg =~ /\n$/;
73		141
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	142	LOG llevError, $msg;
76	};	143	};
77	}	144	}
78		145
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		152
86	# we bless all objects into (empty) derived classes to force a method lookup	153	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	154	# within the Safe compartment.
88	for my $pkg (qw(	155	for my $pkg (qw(
89	cf::global	156	cf::global cf::attachable
90	cf::object cf::object::player	157	cf::object cf::object::player
91	cf::client cf::player	158	cf::client cf::player
92	cf::arch cf::living	159	cf::arch cf::living
93	cf::map cf::party cf::region	160	cf::map cf::party cf::region
94	)) {	161	)) {
…		…
98		165
99	$Event::DIED = sub {	166	$Event::DIED = sub {
100	warn "error in event callback: @_";	167	warn "error in event callback: @_";
101	};	168	};
102		169
103	my %ext_pkg;
104	my @exts;
105	my @hook;
106
107	=head2 UTILITY FUNCTIONS	170	=head2 UTILITY FUNCTIONS
108		171
109	=over 4	172	=over 4
110		173
		174	=item dumpval $ref
		175
111	=cut	176	=cut
		177
		178	sub dumpval {
		179	eval {
		180	local $SIG{__DIE__};
		181	my $d;
		182	if (1) {
		183	$d = new Data::Dumper([$_[0]], ["*var"]);
		184	$d->Terse(1);
		185	$d->Indent(2);
		186	$d->Quotekeys(0);
		187	$d->Useqq(1);
		188	#$d->Bless(...);
		189	$d->Seen($_[1]) if @_ > 1;
		190	$d = $d->Dump();
		191	}
		192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		193	$d
		194	} || "[unable to dump $_[0]: '$@']";
		195	}
112		196
113	use JSON::Syck (); # TODO# replace by JSON::PC once working	197	use JSON::Syck (); # TODO# replace by JSON::PC once working
114		198
115	=item $ref = cf::from_json $json	199	=item $ref = cf::from_json $json
116		200
…		…
130	=cut	214	=cut
131		215
132	sub to_json($) {	216	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	218	JSON::Syck::Dump $_[0]
		219	}
		220
		221	=item cf::lock_wait $string
		222
		223	Wait until the given lock is available. See cf::lock_acquire.
		224
		225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	$WRITE_RUNTIME_WATCHER->start;
		269	};
		270	$WRITE_RUNTIME_WATCHER->stop;
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
		298	sub sync_job(&) {
		299	my ($job) = @_;
		300
		301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
		316	})->prio (Coro::PRIO_MAX);
		317
		318	while ($busy) {
		319	Coro::cede or Event::one_event;
		320	}
		321
		322	wantarray ? @res : $res[0]
		323	} else {
		324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
		327	}
		328	}
		329
		330	=item $coro = cf::async_ext { BLOCK }
		331
		332	Like async, but this coro is automatically being canceled when the
		333	extension calling this is being unloaded.
		334
		335	=cut
		336
		337	sub async_ext(&) {
		338	my $cb = shift;
		339
		340	my $coro = &Coro::async ($cb);
		341
		342	$coro->on_destroy (sub {
		343	delete $EXT_CORO{$coro+0};
		344	});
		345	$EXT_CORO{$coro+0} = $coro;
		346
		347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $runtime = cf::localdir . "/runtime";
		352
		353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		354	or return;
		355
		356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
		360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		361	and return;
		362
		363	aio_fsync $fh
		364	and return;
		365
		366	close $fh
		367	or return;
		368
		369	aio_rename "$runtime~", $runtime
		370	and return;
		371
		372	1
135	}	373	}
136		374
137	=back	375	=back
138		376
139	=cut	377	=cut
…		…
249	my ($self, $victim) = @_;	487	my ($self, $victim) = @_;
250	...	488	...
251	}	489	}
252	}	490	}
253		491
		492	=item $attachable->valid
		493
		494	Just because you have a perl object does not mean that the corresponding
		495	C-level object still exists. If you try to access an object that has no
		496	valid C counterpart anymore you get an exception at runtime. This method
		497	can be used to test for existence of the C object part without causing an
		498	exception.
		499
254	=cut	500	=cut
255		501
256	# the following variables are defined in .xs and must not be re-created	502	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	503	our @CB_GLOBAL = (); # registry for all global events
		504	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	505	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	506	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	507	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	509	our @CB_MAP = ();
263		510
264	my %attachment;	511	my %attachment;
		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
265		518
266	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
268		521
269	use sort 'stable';	522	use sort 'stable';
…		…
272		525
273	@{$registry->[$event]} = sort	526	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	527	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	528	@{$registry->[$event] || []}, $cb;
276	}	529	}
		530
		531	# hack
		532	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		533
278	# attach handles attaching event callbacks	534	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	535	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	536	# registry (== where the callback attaches to).
281	sub _attach {	537	sub _attach {
…		…
283		539
284	my $object_type;	540	my $object_type;
285	my $prio = 0;	541	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	542	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		543
		544	#TODO: get rid of this hack
		545	if ($attachable_klass{$klass}) {
		546	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		547	}
		548
288	while (@arg) {	549	while (@arg) {
289	my $type = shift @arg;	550	my $type = shift @arg;
290		551
291	if ($type eq "prio") {	552	if ($type eq "prio") {
292	$prio = shift @arg;	553	$prio = shift @arg;
…		…
367	my ($obj, $name) = @_;	628	my ($obj, $name) = @_;
368		629
369	exists $obj->{_attachment}{$name}	630	exists $obj->{_attachment}{$name}
370	}	631	}
371		632
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	633	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	634	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	635	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	636	(\\\@CB_$klass, KLASS_$klass)
376	}	637	}
377		638
…		…
413	}	674	}
414		675
415	0	676	0
416	}	677	}
417		678
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		680
420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		682
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	683	Generate an object-specific event with the given arguments.
429		684
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override	686	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	687	results (if you must, access C<@cf::invoke_results> directly).
433		688
434	=back	689	=back
435		690
436	=cut	691	=cut
437		692
438	#############################################################################	693	#############################################################################
439
440	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442	Attachable objects includes objects, players, clients and maps.
443
444	=over 4
445
446	=item $object->valid
447
448	Just because you have a perl object does not mean that the corresponding
449	C-level object still exists. If you try to access an object that has no
450	valid C counterpart anymore you get an exception at runtime. This method
451	can be used to test for existence of the C object part without causing an
452	exception.
453
454	=back
455
456	=cut
457
458	#############################################################################
459	# object support	694	# object support
460		695
461	sub instantiate {
462	my ($obj, $data) = @_;
463
464	$data = from_json $data;
465
466	for (@$data) {
467	my ($name, $args) = @$_;
468
469	$obj->attach ($name, %{$args || {} });
470	}
471	}
472
473	# basically do the same as instantiate, without calling instantiate
474	sub reattach {	696	sub reattach {
		697	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		701
476	my $registry = $obj->registry;	702	my $registry = $obj->registry;
477		703
478	@$registry = ();	704	@$registry = ();
479		705
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	706	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	715	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	716	}
491	}	717	}
492	}	718	}
493		719
494	sub object_freezer_save {	720	cf::attachable->attach (
495	my ($filename, $rdata, $objs) = @_;
496
497	if (length $$rdata) {
498	warn sprintf "saving %s (%d,%d)\n",
499	$filename, length $$rdata, scalar @$objs;
500
501	if (open my $fh, ">:raw", "$filename~") {
502	chmod SAVE_MODE, $fh;
503	syswrite $fh, $$rdata;
504	close $fh;
505
506	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509	close $fh;
510	rename "$filename.pst~", "$filename.pst";
511	} else {
512	unlink "$filename.pst";
513	}
514
515	rename "$filename~", $filename;
516	} else {
517	warn "FATAL: $filename~: $!\n";
518	}
519	} else {
520	unlink $filename;
521	unlink "$filename.pst";
522	}
523	}
524
525	sub object_freezer_as_string {
526	my ($rdata, $objs) = @_;
527
528	use Data::Dumper;
529
530	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	721	prio => -1000000,
		722	on_instantiate => sub {
		723	my ($obj, $data) = @_;
		724
		725	$data = from_json $data;
		726
		727	for (@$data) {
		728	my ($name, $args) = @$_;
		729
		730	$obj->attach ($name, %{$args || {} });
		731	}
		732	},
		733	on_reattach => \&reattach,
554	on_clone => sub {	734	on_clone => sub {
555	my ($src, $dst) = @_;	735	my ($src, $dst) = @_;
556		736
557	@{$dst->registry} = @{$src->registry};	737	@{$dst->registry} = @{$src->registry};
558		738
…		…
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	741	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	742	if exists $src->{_attachment};
563	},	743	},
564	);	744	);
565		745
		746	sub object_freezer_save {
		747	my ($filename, $rdata, $objs) = @_;
		748
		749	sync_job {
		750	if (length $$rdata) {
		751	warn sprintf "saving %s (%d,%d)\n",
		752	$filename, length $$rdata, scalar @$objs;
		753
		754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		755	chmod SAVE_MODE, $fh;
		756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		757	aio_fsync $fh;
		758	close $fh;
		759
		760	if (@$objs) {
		761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		762	chmod SAVE_MODE, $fh;
		763	my $data = Storable::nfreeze { version => 1, objs => $objs };
		764	aio_write $fh, 0, (length $data), $data, 0;
		765	aio_fsync $fh;
		766	close $fh;
		767	aio_rename "$filename.pst~", "$filename.pst";
		768	}
		769	} else {
		770	aio_unlink "$filename.pst";
		771	}
		772
		773	aio_rename "$filename~", $filename;
		774	} else {
		775	warn "FATAL: $filename~: $!\n";
		776	}
		777	} else {
		778	aio_unlink $filename;
		779	aio_unlink "$filename.pst";
		780	}
		781
		782	#d##TODO# nuke non .map-files if exist
		783	if ($filename =~ s/\.map$//) {
		784	aio_unlink $filename;
		785	aio_unlink "$filename.pst";
		786	}
		787	}
		788	}
		789
		790	sub object_freezer_as_string {
		791	my ($rdata, $objs) = @_;
		792
		793	use Data::Dumper;
		794
		795	$$rdata . Dumper $objs
		796	}
		797
		798	sub object_thawer_load {
		799	my ($filename) = @_;
		800
		801	my ($data, $av);
		802
		803	#d#TODO remove .map if file does not exist
		804	aio_stat $filename and $filename =~ s/\.map$//;
		805
		806	(aio_load $filename, $data) >= 0
		807	or return;
		808
		809	unless (aio_stat "$filename.pst") {
		810	(aio_load "$filename.pst", $av) >= 0
		811	or return;
		812	$av = eval { (Storable::thaw $av)->{objs} };
		813	}
		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
		817	return ($data, $av);
		818	}
		819
566	#############################################################################	820	#############################################################################
567	# command handling &c	821	# command handling &c
568		822
569	=item cf::register_command $name => \&callback($ob,$args);	823	=item cf::register_command $name => \&callback($ob,$args);
570		824
…		…
592	=cut	846	=cut
593		847
594	sub register_extcmd {	848	sub register_extcmd {
595	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
596		850
597	my $caller = caller;
598	#warn "registering extcmd '$name' to '$caller'";
599
600	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
601	}	852	}
602		853
603	cf::player->attach (	854	cf::player->attach (
604	on_command => sub {	855	on_command => sub {
605	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
618		869
619	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
620		871
621	if (ref $msg) {	872	if (ref $msg) {
622	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
623	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
624	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
625	}	876	}
626	}	877	}
627	} else {	878	} else {
628	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
630		881
631	cf::override;	882	cf::override;
632	},	883	},
633	);	884	);
634		885
635	sub register {
636	my ($base, $pkg) = @_;
637
638	#TODO
639	}
640
641	sub load_extension {	886	sub load_extension {
642	my ($path) = @_;	887	my ($path) = @_;
643		888
644	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
645	my $base = $1;	890	my $base = $1;
646	my $pkg = $1;	891	my $pkg = $1;
647	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
648	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
649		894
650	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
651		896
652	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
653	or die "$path: $!";	898	or die "$path: $!";
654		899
655	my $source =	900	my $source =
656	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
657	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
658	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
659	. "\n};\n1";	904	. "\n};\n1";
660		905
661	eval $source	906	unless (eval $source) {
662	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
663	: "extension disabled.\n";	908	: "extension disabled.\n";
664		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
665	push @exts, $pkg;	910	warn $@;
666	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
667		912	exit 1;
668	# no strict 'refs';	913	}
669	# @{"$pkg\::ISA"} = ext::;	914	die $@;
670
671	register $base, $pkg;
672	}
673
674	sub unload_extension {
675	my ($pkg) = @_;
676
677	warn "removing extension $pkg\n";
678
679	# remove hooks
680	#TODO
681	# for my $idx (0 .. $#PLUGIN_EVENT) {
682	# delete $hook[$idx]{$pkg};
683	# }	915	}
684		916
685	# remove commands	917	push @EXTS, $pkg;
686	for my $name (keys %COMMAND) {
687	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
688
689	if (@cb) {
690	$COMMAND{$name} = \@cb;
691	} else {
692	delete $COMMAND{$name};
693	}
694	}
695
696	# remove extcmds
697	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
698	delete $EXTCMD{$name};
699	}
700
701	if (my $cb = $pkg->can ("unload")) {
702	eval {
703	$cb->($pkg);
704	1
705	} or warn "$pkg unloaded, but with errors: $@";
706	}
707
708	Symbol::delete_package $pkg;
709	}	918	}
710		919
711	sub load_extensions {	920	sub load_extensions {
712	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
713	next unless -r $ext;	922	next unless -r $ext;
…		…
717	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
718	}	927	}
719	}	928	}
720		929
721	#############################################################################	930	#############################################################################
722	# load/save/clean perl data associated with a map
723		931
724	*cf::mapsupport::on_clean = sub {	932	=head2 CORE EXTENSIONS
		933
		934	Functions and methods that extend core crossfire objects.
		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
		942	=head3 cf::player
		943
		944	=over 4
		945
		946	=item cf::player::find $login
		947
		948	Returns the given player object, loading it if necessary (might block).
		949
		950	=cut
		951
		952	sub playerdir($) {
		953	cf::localdir
		954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
		1100	}
		1101
		1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1103
		1104	Sends an ext reply to the player.
		1105
		1106	=cut
		1107
		1108	sub ext_reply($$$%) {
		1109	my ($self, $id, %msg) = @_;
		1110
		1111	$msg{msgid} = $id;
		1112
		1113	$self->send ("ext " . cf::to_json \%msg);
		1114	}
		1115
		1116	package cf;
		1117
		1118	=back
		1119
		1120
		1121	=head3 cf::map
		1122
		1123	=over 4
		1124
		1125	=cut
		1126
		1127	package cf::map;
		1128
		1129	use Fcntl;
		1130	use Coro::AIO;
		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
		1136	our $MAX_RESET = 3600;
		1137	our $DEFAULT_RESET = 3000;
		1138
		1139	sub generate_random_map {
		1140	my ($self, $rmp) = @_;
		1141	# mit "rum" bekleckern, nicht
		1142	$self->_create_random_map (
		1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1146	$rmp->{exit_on_final_map},
		1147	$rmp->{xsize}, $rmp->{ysize},
		1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1284	}
		1285
		1286	# and all this just because we cannot iterate over
		1287	# all maps in C++...
		1288	sub change_all_map_light {
		1289	my ($change) = @_;
		1290
		1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
		1293	}
		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301
		1302	#d#TODO remove .map and also nuke
		1303	$save =~ s/\.map// or return;#d#
		1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1306	}
		1307
		1308	sub load_header_from($) {
		1309	my ($self, $path) = @_;
		1310
		1311	utf8::encode $path;
		1312	#aio_open $path, O_RDONLY, 0
		1313	# or return;
		1314
		1315	$self->_load_header ($path)
		1316	or return;
		1317
		1318	$self->{load_path} = $path;
		1319
		1320	1
		1321	}
		1322
		1323	sub load_header_orig {
		1324	my ($self) = @_;
		1325
		1326	$self->load_header_from ($self->load_path)
		1327	}
		1328
		1329	sub load_header_temp {
		1330	my ($self) = @_;
		1331
		1332	$self->load_header_from ($self->save_path)
		1333	}
		1334
		1335	sub prepare_temp {
		1336	my ($self) = @_;
		1337
		1338	$self->last_access ((delete $self->{last_access})
		1339	|| $cf::RUNTIME); #d#
		1340	# safety
		1341	$self->{instantiate_time} = $cf::RUNTIME
		1342	if $self->{instantiate_time} > $cf::RUNTIME;
		1343	}
		1344
		1345	sub prepare_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->{load_original} = 1;
		1349	$self->{instantiate_time} = $cf::RUNTIME;
		1350	$self->last_access ($cf::RUNTIME);
		1351	$self->instantiate;
		1352	}
		1353
		1354	sub load_header {
		1355	my ($self) = @_;
		1356
		1357	if ($self->load_header_temp) {
		1358	$self->prepare_temp;
		1359	} else {
		1360	$self->load_header_orig
		1361	or return;
		1362	$self->prepare_orig;
		1363	}
		1364
		1365	1
		1366	}
		1367
		1368	sub find;
		1369	sub find {
		1370	my ($path, $origin) = @_;
		1371
		1372	$path = normalise $path, $origin && $origin->path;
		1373
		1374	cf::lock_wait "map_find:$path";
		1375
		1376	$cf::MAP{$path} || do {
		1377	my $guard = cf::lock_acquire "map_find:$path";
		1378	my $map = new_from_path cf::map $path
		1379	or return;
		1380
		1381	$map->{last_save} = $cf::RUNTIME;
		1382
		1383	$map->load_header
		1384	or return;
		1385
		1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1387	# doing this can freeze the server in a sync job, obviously
		1388	#$cf::WAIT_FOR_TICK->wait;
		1389	$map->reset;
		1390	undef $guard;
		1391	return find $path;
		1392	}
		1393
		1394	$cf::MAP{$path} = $map
		1395	}
		1396	}
		1397
		1398	sub pre_load { }
		1399	sub post_load { }
		1400
		1401	sub load {
		1402	my ($self) = @_;
		1403
		1404	local $self->{deny_reset} = 1; # loading can take a long time
		1405
		1406	my $path = $self->{path};
		1407	my $guard = cf::lock_acquire "map_load:$path";
		1408
		1409	return if $self->in_memory != cf::MAP_SWAPPED;
		1410
		1411	$self->in_memory (cf::MAP_LOADING);
		1412
		1413	$self->alloc;
		1414
		1415	$self->pre_load;
		1416
		1417	$self->_load_objects ($self->{load_path}, 1)
		1418	or return;
		1419
		1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1421	if delete $self->{load_original};
		1422
		1423	if (my $uniq = $self->uniq_path) {
		1424	utf8::encode $uniq;
		1425	if (aio_open $uniq, O_RDONLY, 0) {
		1426	$self->clear_unique_items;
		1427	$self->_load_objects ($uniq, 0);
		1428	}
		1429	}
		1430
		1431	Coro::cede;
		1432
		1433	# now do the right thing for maps
		1434	$self->link_multipart_objects;
		1435
		1436	unless ($self->{deny_activate}) {
		1437	$self->decay_objects;
		1438	$self->fix_auto_apply;
		1439	$self->update_buttons;
		1440	Coro::cede;
		1441	$self->set_darkness_map;
		1442	$self->difficulty ($self->estimate_difficulty)
		1443	unless $self->difficulty;
		1444	Coro::cede;
		1445	$self->activate;
		1446	}
		1447
		1448	$self->post_load;
		1449
		1450	$self->in_memory (cf::MAP_IN_MEMORY);
		1451	}
		1452
		1453	sub customise_for {
		1454	my ($self, $ob) = @_;
		1455
		1456	return find "~" . $ob->name . "/" . $self->{path}
		1457	if $self->per_player;
		1458
		1459	$self
		1460	}
		1461
		1462	# find and load all maps in the 3x3 area around a map
		1463	sub load_diag {
725	my ($map) = @_;	1464	my ($map) = @_;
726		1465
727	my $path = $map->tmpname;	1466	my @diag; # diagonal neighbours
728	defined $path or return;
729		1467
730	unlink "$path.pst";	1468	for (0 .. 3) {
731	};	1469	my $neigh = $map->tile_path ($_)
		1470	or next;
		1471	$neigh = find $neigh, $map
		1472	or next;
		1473	$neigh->load;
732		1474
733	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1477	}
734		1478
735	#############################################################################	1479	for (@diag) {
736	# load/save perl data associated with player->ob objects	1480	my $neigh = find @$_
737		1481	or next;
738	sub all_objects(@) {	1482	$neigh->load;
739	@_, map all_objects ($_->inv), @_	1483	}
740	}	1484	}
741		1485
742	# TODO: compatibility cruft, remove when no longer needed	1486	sub find_sync {
743	cf::player->attach (	1487	my ($path, $origin) = @_;
744	on_load => sub {
745	my ($pl, $path) = @_;
746		1488
747	for my $o (all_objects $pl->ob) {	1489	cf::sync_job { find $path, $origin }
748	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1490	}
749	$o->set_ob_key_value ("_perl_data");
750		1491
751	%$o = %{ Storable::thaw pack "H*", $value };	1492	sub do_load_sync {
		1493	my ($map) = @_;
		1494
		1495	cf::sync_job { $map->load };
		1496	}
		1497
		1498	our %MAP_PREFETCH;
		1499	our $MAP_PREFETCHER = undef;
		1500
		1501	sub find_async {
		1502	my ($path, $origin) = @_;
		1503
		1504	$path = normalise $path, $origin && $origin->{path};
		1505
		1506	if (my $map = $cf::MAP{$path}) {
		1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1508	}
		1509
		1510	undef $MAP_PREFETCH{$path};
		1511	$MAP_PREFETCHER ||= cf::async {
		1512	while (%MAP_PREFETCH) {
		1513	for my $path (keys %MAP_PREFETCH) {
		1514	my $map = find $path
		1515	or next;
		1516	$map->load;
		1517
		1518	delete $MAP_PREFETCH{$path};
752	}	1519	}
753	}	1520	}
		1521	undef $MAP_PREFETCHER;
		1522	};
		1523	$MAP_PREFETCHER->prio (6);
		1524
		1525	()
		1526	}
		1527
		1528	sub save {
		1529	my ($self) = @_;
		1530
		1531	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1532
		1533	$self->{last_save} = $cf::RUNTIME;
		1534
		1535	return unless $self->dirty;
		1536
		1537	my $save = $self->save_path; utf8::encode $save;
		1538	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1539
		1540	$self->{load_path} = $save;
		1541
		1542	return if $self->{deny_save};
		1543
		1544	local $self->{last_access} = $self->last_access;#d#
		1545
		1546	cf::async {
		1547	$_->contr->save for $self->players;
		1548	};
		1549
		1550	if ($uniq) {
		1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1553	} else {
		1554	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
754	},	1555	}
755	);	1556	}
756		1557
757	#############################################################################	1558	sub swap_out {
		1559	my ($self) = @_;
758		1560
759	=head2 CORE EXTENSIONS	1561	# save first because save cedes
		1562	$self->save;
760		1563
761	Functions and methods that extend core crossfire objects.	1564	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1565
		1566	return if $self->players;
		1567	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1568	return if $self->{deny_save};
		1569
		1570	$self->clear;
		1571	$self->in_memory (cf::MAP_SWAPPED);
		1572	}
		1573
		1574	sub reset_at {
		1575	my ($self) = @_;
		1576
		1577	# TODO: safety, remove and allow resettable per-player maps
		1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1579	return 1e99 if $self->{deny_reset};
		1580
		1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1583
		1584	$time + $to
		1585	}
		1586
		1587	sub should_reset {
		1588	my ($self) = @_;
		1589
		1590	$self->reset_at <= $cf::RUNTIME
		1591	}
		1592
		1593	sub reset {
		1594	my ($self) = @_;
		1595
		1596	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1597
		1598	return if $self->players;
		1599	return if $self->isa ("ext::map_per_player");#d#
		1600
		1601	warn "resetting map ", $self->path;#d#
		1602
		1603	delete $cf::MAP{$self->path};
		1604
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	$self->clear;
		1607
		1608	$_->clear_links_to ($self) for values %cf::MAP;
		1609
		1610	$self->unlink_save;
		1611	$self->destroy;
		1612	}
		1613
		1614	my $nuke_counter = "aaaa";
		1615
		1616	sub nuke {
		1617	my ($self) = @_;
		1618
		1619	delete $cf::MAP{$self->path};
		1620
		1621	$self->unlink_save;
		1622
		1623	bless $self, "cf::map";
		1624	delete $self->{deny_reset};
		1625	$self->{deny_save} = 1;
		1626	$self->reset_timeout (1);
		1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1628
		1629	$cf::MAP{$self->path} = $self;
		1630
		1631	$self->reset; # polite request, might not happen
		1632	}
		1633
		1634	=item cf::map::unique_maps
		1635
		1636	Returns an arrayref of paths of all shared maps that have
		1637	instantiated unique items. May block.
		1638
		1639	=cut
		1640
		1641	sub unique_maps() {
		1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1643	or return;
		1644
		1645	my @paths;
		1646
		1647	for (@$files) {
		1648	utf8::decode $_;
		1649	next if /\.pst$/;
		1650	next unless /^$PATH_SEP/o;
		1651
		1652	push @paths, cf::map::normalise $_;
		1653	}
		1654
		1655	\@paths
		1656	}
		1657
		1658	package cf;
		1659
		1660	=back
		1661
		1662	=head3 cf::object
		1663
		1664	=cut
		1665
		1666	package cf::object;
762		1667
763	=over 4	1668	=over 4
764		1669
765	=item cf::player::exists $login	1670	=item $ob->inv_recursive
766		1671
767	Returns true when the given account exists.	1672	Returns the inventory of the object _and_ their inventories, recursively.
768		1673
769	=cut	1674	=cut
770		1675
771	sub cf::player::exists($) {	1676	sub inv_recursive_;
772	cf::player::find $_[0]	1677	sub inv_recursive_ {
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1678	map { $_, inv_recursive_ $_->inv } @_
774	}	1679	}
		1680
		1681	sub inv_recursive {
		1682	inv_recursive_ inv $_[0]
		1683	}
		1684
		1685	package cf;
		1686
		1687	=back
		1688
		1689	=head3 cf::object::player
		1690
		1691	=over 4
775		1692
776	=item $player_object->reply ($npc, $msg[, $flags])	1693	=item $player_object->reply ($npc, $msg[, $flags])
777		1694
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1695	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779	can be C<undef>. Does the right thing when the player is currently in a	1696	can be C<undef>. Does the right thing when the player is currently in a
…		…
781		1698
782	=cut	1699	=cut
783		1700
784	# rough implementation of a future "reply" method that works	1701	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	1702	# with dialog boxes.
		1703	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	1704	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	1705	my ($self, $npc, $msg, $flags) = @_;
788		1706
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		1708
…		…
794	$msg = $npc->name . " says: $msg" if $npc;	1712	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	1713	$self->message ($msg, $flags);
796	}	1714	}
797	}	1715	}
798		1716
799	=item $player->ext_reply ($msgid, $msgtype, %msg)
800
801	Sends an ext reply to the player.
802
803	=cut
804
805	sub cf::player::ext_reply($$$%) {
806	my ($self, $id, %msg) = @_;
807
808	$msg{msgid} = $id;
809
810	$self->send ("ext " . to_json \%msg);
811	}
812
813	=item $player_object->may ("access")	1717	=item $player_object->may ("access")
814		1718
815	Returns wether the given player is authorized to access resource "access"	1719	Returns wether the given player is authorized to access resource "access"
816	(e.g. "command_wizcast").	1720	(e.g. "command_wizcast").
817		1721
…		…
824	(ref $cf::CFG{"may_$access"}	1728	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1729	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1730	: $cf::CFG{"may_$access"})
827	}	1731	}
828		1732
829	=cut	1733	=item $player_object->enter_link
830		1734
831	#############################################################################	1735	Freezes the player and moves him/her to a special map (C<{link}>).
		1736
		1737	The player should be reasonably safe there for short amounts of time. You
		1738	I<MUST> call C<leave_link> as soon as possible, though.
		1739
		1740	Will never block.
		1741
		1742	=item $player_object->leave_link ($map, $x, $y)
		1743
		1744	Moves the player out of the special C<{link}> map onto the specified
		1745	map. If the map is not valid (or omitted), the player will be moved back
		1746	to the location he/she was before the call to C<enter_link>, or, if that
		1747	fails, to the emergency map position.
		1748
		1749	Might block.
		1750
		1751	=cut
		1752
		1753	sub link_map {
		1754	unless ($LINK_MAP) {
		1755	$LINK_MAP = cf::map::find "{link}"
		1756	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1757	$LINK_MAP->load;
		1758	}
		1759
		1760	$LINK_MAP
		1761	}
		1762
		1763	sub cf::object::player::enter_link {
		1764	my ($self) = @_;
		1765
		1766	$self->deactivate_recursive;
		1767
		1768	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1769
		1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1771	if $self->map;
		1772
		1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1774	}
		1775
		1776	sub cf::object::player::leave_link {
		1777	my ($self, $map, $x, $y) = @_;
		1778
		1779	my $link_pos = delete $self->{_link_pos};
		1780
		1781	unless ($map) {
		1782	# restore original map position
		1783	($map, $x, $y) = @{ $link_pos || [] };
		1784	$map = cf::map::find $map;
		1785
		1786	unless ($map) {
		1787	($map, $x, $y) = @$EMERGENCY_POSITION;
		1788	$map = cf::map::find $map
		1789	or die "FATAL: cannot load emergency map\n";
		1790	}
		1791	}
		1792
		1793	($x, $y) = (-1, -1)
		1794	unless (defined $x) && (defined $y);
		1795
		1796	# use -1 or undef as default coordinates, not 0, 0
		1797	($x, $y) = ($map->enter_x, $map->enter_y)
		1798	if $x <=0 && $y <= 0;
		1799
		1800	$map->load;
		1801	$map->load_diag;
		1802
		1803	return unless $self->contr->active;
		1804	$self->activate_recursive;
		1805	$self->enter_map ($map, $x, $y);
		1806	}
		1807
		1808	cf::player->attach (
		1809	on_logout => sub {
		1810	my ($pl) = @_;
		1811
		1812	# abort map switching before logout
		1813	if ($pl->ob->{_link_pos}) {
		1814	cf::sync_job {
		1815	$pl->ob->leave_link
		1816	};
		1817	}
		1818	},
		1819	on_login => sub {
		1820	my ($pl) = @_;
		1821
		1822	# try to abort aborted map switching on player login :)
		1823	# should happen only on crashes
		1824	if ($pl->ob->{_link_pos}) {
		1825	$pl->ob->enter_link;
		1826	(async {
		1827	# we need this sleep as the login has a concurrent enter_exit running
		1828	# and this sleep increases chances of the player not ending up in scorn
		1829	$pl->ob->reply (undef,
		1830	"There was an internal problem at your last logout, "
		1831	. "the server will try to bring you to your intended destination in a second.",
		1832	cf::NDI_RED);
		1833	Coro::Timer::sleep 1;
		1834	$pl->ob->leave_link;
		1835	})->prio (2);
		1836	}
		1837	},
		1838	);
		1839
		1840	=item $player_object->goto ($path, $x, $y)
		1841
		1842	=cut
		1843
		1844	sub cf::object::player::goto {
		1845	my ($self, $path, $x, $y) = @_;
		1846
		1847	$self->enter_link;
		1848
		1849	(async {
		1850	my $map = eval {
		1851	my $map = cf::map::find $path;
		1852	$map = $map->customise_for ($self) if $map;
		1853	$map
		1854	} or
		1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1856
		1857	$self->leave_link ($map, $x, $y);
		1858	})->prio (1);
		1859	}
		1860
		1861	=item $player_object->enter_exit ($exit_object)
		1862
		1863	=cut
		1864
		1865	sub parse_random_map_params {
		1866	my ($spec) = @_;
		1867
		1868	my $rmp = { # defaults
		1869	xsize => (cf::rndm 15, 40),
		1870	ysize => (cf::rndm 15, 40),
		1871	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1872	#layout => string,
		1873	};
		1874
		1875	for (split /\n/, $spec) {
		1876	my ($k, $v) = split /\s+/, $_, 2;
		1877
		1878	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1879	}
		1880
		1881	$rmp
		1882	}
		1883
		1884	sub prepare_random_map {
		1885	my ($exit) = @_;
		1886
		1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1888
		1889	# all this does is basically replace the /! path by
		1890	# a new random map path (?random/...) with a seed
		1891	# that depends on the exit object
		1892
		1893	my $rmp = parse_random_map_params $exit->msg;
		1894
		1895	if ($exit->map) {
		1896	$rmp->{region} = $exit->region->name;
		1897	$rmp->{origin_map} = $exit->map->path;
		1898	$rmp->{origin_x} = $exit->x;
		1899	$rmp->{origin_y} = $exit->y;
		1900	}
		1901
		1902	$rmp->{random_seed} ||= $exit->random_seed;
		1903
		1904	my $data = cf::to_json $rmp;
		1905	my $md5 = Digest::MD5::md5_hex $data;
		1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1907
		1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1909	aio_write $fh, 0, (length $data), $data, 0;
		1910	undef $fh;
		1911	aio_rename "$meta~", $meta;
		1912
		1913	$exit->slaying ("?random/$md5");
		1914	$exit->msg (undef);
		1915	}
		1916	}
		1917
		1918	sub cf::object::player::enter_exit {
		1919	my ($self, $exit) = @_;
		1920
		1921	return unless $self->type == cf::PLAYER;
		1922
		1923	if ($exit->slaying eq "/!") {
		1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1925	cf::sync_job { prepare_random_map $exit };
		1926	}
		1927
		1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1929	my $hp = $exit->stats->hp;
		1930	my $sp = $exit->stats->sp;
		1931
		1932	$self->enter_link;
		1933
		1934	(async {
		1935	$self->deactivate_recursive; # just to be sure
		1936	unless (eval {
		1937	$self->goto ($slaying, $hp, $sp);
		1938
		1939	1;
		1940	}) {
		1941	$self->message ("Something went wrong deep within the crossfire server. "
		1942	. "I'll try to bring you back to the map you were before. "
		1943	. "Please report this to the dungeon master!",
		1944	cf::NDI_UNIQUE | cf::NDI_RED);
		1945
		1946	warn "ERROR in enter_exit: $@";
		1947	$self->leave_link;
		1948	}
		1949	})->prio (1);
		1950	}
		1951
		1952	=head3 cf::client
		1953
		1954	=over 4
		1955
		1956	=item $client->send_drawinfo ($text, $flags)
		1957
		1958	Sends a drawinfo packet to the client. Circumvents output buffering so
		1959	should not be used under normal circumstances.
		1960
		1961	=cut
		1962
		1963	sub cf::client::send_drawinfo {
		1964	my ($self, $text, $flags) = @_;
		1965
		1966	utf8::encode $text;
		1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1968	}
		1969
		1970
		1971	=item $success = $client->query ($flags, "text", \&cb)
		1972
		1973	Queues a query to the client, calling the given callback with
		1974	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1975	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1976
		1977	Queries can fail, so check the return code. Or don't, as queries will become
		1978	reliable at some point in the future.
		1979
		1980	=cut
		1981
		1982	sub cf::client::query {
		1983	my ($self, $flags, $text, $cb) = @_;
		1984
		1985	return unless $self->state == ST_PLAYING
		1986	|| $self->state == ST_SETUP
		1987	|| $self->state == ST_CUSTOM;
		1988
		1989	$self->state (ST_CUSTOM);
		1990
		1991	utf8::encode $text;
		1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1993
		1994	$self->send_packet ($self->{query_queue}[0][0])
		1995	if @{ $self->{query_queue} } == 1;
		1996	}
		1997
		1998	cf::client->attach (
		1999	on_reply => sub {
		2000	my ($ns, $msg) = @_;
		2001
		2002	# this weird shuffling is so that direct followup queries
		2003	# get handled first
		2004	my $queue = delete $ns->{query_queue}
		2005	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2006
		2007	(shift @$queue)->[1]->($msg);
		2008	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2009
		2010	push @{ $ns->{query_queue} }, @$queue;
		2011
		2012	if (@{ $ns->{query_queue} } == @$queue) {
		2013	if (@$queue) {
		2014	$ns->send_packet ($ns->{query_queue}[0][0]);
		2015	} else {
		2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2017	}
		2018	}
		2019	},
		2020	);
		2021
		2022	=item $client->async (\&cb)
		2023
		2024	Create a new coroutine, running the specified callback. The coroutine will
		2025	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2026	or loss of connection).
		2027
		2028	=cut
		2029
		2030	sub cf::client::async {
		2031	my ($self, $cb) = @_;
		2032
		2033	my $coro = &Coro::async ($cb);
		2034
		2035	$coro->on_destroy (sub {
		2036	delete $self->{_coro}{$coro+0};
		2037	});
		2038
		2039	$self->{_coro}{$coro+0} = $coro;
		2040
		2041	$coro
		2042	}
		2043
		2044	cf::client->attach (
		2045	on_destroy => sub {
		2046	my ($ns) = @_;
		2047
		2048	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2049	},
		2050	);
		2051
		2052	=back
		2053
832		2054
833	=head2 SAFE SCRIPTING	2055	=head2 SAFE SCRIPTING
834		2056
835	Functions that provide a safe environment to compile and execute	2057	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	2058	snippets of perl code without them endangering the safety of the server
…		…
988		2210
989	{	2211	{
990	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
991		2213
992	sub db_load() {	2214	sub db_load() {
993	warn "loading database $path\n";#d# remove later
994	$DB = stat $path ? Storable::retrieve $path : { };	2215	$DB = stat $path ? Storable::retrieve $path : { };
995	}	2216	}
996		2217
997	my $pid;	2218	my $pid;
998		2219
999	sub db_save() {	2220	sub db_save() {
1000	warn "saving database $path\n";#d# remove later
1001	waitpid $pid, 0 if $pid;	2221	waitpid $pid, 0 if $pid;
1002	if (0 == ($pid = fork)) {	2222	if (0 == ($pid = fork)) {
1003	$DB->{_meta}{version} = 1;	2223	$DB->{_meta}{version} = 1;
1004	Storable::nstore $DB, "$path~";	2224	Storable::nstore $DB, "$path~";
1005	rename "$path~", $path;	2225	rename "$path~", $path;
…		…
1012	sub db_sync() {	2232	sub db_sync() {
1013	db_save if $dirty;	2233	db_save if $dirty;
1014	undef $dirty;	2234	undef $dirty;
1015	}	2235	}
1016		2236
1017	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2237	my $idle = Event->idle (
1018	db_sync;	2238	reentrant => 0,
		2239	min => 10,
		2240	max => 20,
		2241	repeat => 0,
		2242	data => WF_AUTOCANCEL,
		2243	cb => \&db_sync,
1019	});	2244	);
1020		2245
1021	sub db_dirty() {	2246	sub db_dirty() {
1022	$dirty = 1;	2247	$dirty = 1;
1023	$idle->start;	2248	$idle->start;
1024	}	2249	}
…		…
1053	open my $fh, "<:utf8", cf::confdir . "/config"	2278	open my $fh, "<:utf8", cf::confdir . "/config"
1054	or return;	2279	or return;
1055		2280
1056	local $/;	2281	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	2282	*CFG = YAML::Syck::Load <$fh>;
		2283
		2284	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2285
		2286	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2287	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2288
		2289	if (exists $CFG{mlockall}) {
		2290	eval {
		2291	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2292	and die "WARNING: m(un)lockall failed: $!\n";
		2293	};
		2294	warn $@ if $@;
		2295	}
1058	}	2296	}
1059		2297
1060	sub main {	2298	sub main {
		2299	# we must not ever block the main coroutine
		2300	local $Coro::idle = sub {
		2301	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2302	(async {
		2303	Event::one_event;
		2304	})->prio (Coro::PRIO_MAX);
		2305	};
		2306
1061	cfg_load;	2307	cfg_load;
1062	db_load;	2308	db_load;
1063	load_extensions;	2309	load_extensions;
		2310
		2311	$TICK_WATCHER->start;
1064	Event::loop;	2312	Event::loop;
1065	}	2313	}
1066		2314
1067	#############################################################################	2315	#############################################################################
1068	# initialisation	2316	# initialisation and cleanup
1069		2317
		2318	# install some emergency cleanup handlers
		2319	BEGIN {
		2320	for my $signal (qw(INT HUP TERM)) {
		2321	Event->signal (
		2322	reentrant => 0,
		2323	data => WF_AUTOCANCEL,
		2324	signal => $signal,
		2325	prio => 0,
		2326	cb => sub {
		2327	cf::cleanup "SIG$signal";
		2328	},
		2329	);
		2330	}
		2331	}
		2332
		2333	sub emergency_save() {
		2334	my $freeze_guard = cf::freeze_mainloop;
		2335
		2336	warn "enter emergency perl save\n";
		2337
		2338	cf::sync_job {
		2339	# use a peculiar iteration method to avoid tripping on perl
		2340	# refcount bugs in for. also avoids problems with players
		2341	# and maps saved/destroyed asynchronously.
		2342	warn "begin emergency player save\n";
		2343	for my $login (keys %cf::PLAYER) {
		2344	my $pl = $cf::PLAYER{$login} or next;
		2345	$pl->valid or next;
		2346	$pl->save;
		2347	}
		2348	warn "end emergency player save\n";
		2349
		2350	warn "begin emergency map save\n";
		2351	for my $path (keys %cf::MAP) {
		2352	my $map = $cf::MAP{$path} or next;
		2353	$map->valid or next;
		2354	$map->save;
		2355	}
		2356	warn "end emergency map save\n";
		2357	};
		2358
		2359	warn "leave emergency perl save\n";
		2360	}
		2361
1070	sub _perl_reload(&) {	2362	sub reload() {
1071	my ($msg) = @_;	2363	# can/must only be called in main
		2364	if ($Coro::current != $Coro::main) {
		2365	warn "can only reload from main coroutine";
		2366	return;
		2367	}
1072		2368
1073	$msg->("reloading...");	2369	warn "reloading...";
		2370
		2371	warn "cancelling server ticker";
		2372	$TICK_WATCHER->cancel;
		2373
		2374	cf::emergency_save;
1074		2375
1075	eval {	2376	eval {
1076	# cancel all watchers	2377	# if anything goes wrong in here, we should simply crash as we already saved
		2378
		2379	warn "syncing database to disk";
		2380	cf::db_sync;
		2381
		2382	warn "cancelling all WF_AUTOCANCEL watchers";
1077	for (Event::all_watchers) {	2383	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	2384	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	2385	}
1080		2386
1081	# unload all extensions	2387	warn "flushing outstanding aio requests";
1082	for (@exts) {	2388	for (;;) {
1083	$msg->("unloading <$_>");	2389	IO::AIO::flush;
1084	unload_extension $_;	2390	Coro::cede;
		2391	last unless IO::AIO::nreqs;
		2392	warn "iterate...";
		2393	}
		2394
		2395	warn "cancelling all extension coros";
		2396	$_->cancel for values %EXT_CORO;
		2397	%EXT_CORO = ();
		2398
		2399	warn "removing commands";
		2400	%COMMAND = ();
		2401
		2402	warn "removing ext commands";
		2403	%EXTCMD = ();
		2404
		2405	warn "unloading/nuking all extensions";
		2406	for my $pkg (@EXTS) {
		2407	warn "... unloading $pkg";
		2408
		2409	if (my $cb = $pkg->can ("unload")) {
		2410	eval {
		2411	$cb->($pkg);
		2412	1
		2413	} or warn "$pkg unloaded, but with errors: $@";
1085	}	2414	}
1086		2415
		2416	warn "... nuking $pkg";
		2417	Symbol::delete_package $pkg;
		2418	}
		2419
1087	# unload all modules loaded from $LIBDIR	2420	warn "unloading all perl modules loaded from $LIBDIR";
1088	while (my ($k, $v) = each %INC) {	2421	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2422	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		2423
1091	$msg->("removing <$k>");	2424	warn "... unloading $k";
1092	delete $INC{$k};	2425	delete $INC{$k};
1093		2426
1094	$k =~ s/\.pm$//;	2427	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	2428	$k =~ s/\//::/g;
1096		2429
…		…
1099	}	2432	}
1100		2433
1101	Symbol::delete_package $k;	2434	Symbol::delete_package $k;
1102	}	2435	}
1103		2436
1104	# sync database to disk
1105	cf::db_sync;
1106
1107	# get rid of safe::, as good as possible	2437	warn "getting rid of safe::, as good as possible";
1108	Symbol::delete_package "safe::$_"	2438	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2439	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		2440
1111	# remove register_script_function callbacks
1112	# TODO
1113
1114	# unload cf.pm "a bit"	2441	warn "unloading cf.pm \"a bit\"";
1115	delete $INC{"cf.pm"};	2442	delete $INC{"cf.pm"};
1116		2443
1117	# don't, removes xs symbols, too,	2444	# don't, removes xs symbols, too,
1118	# and global variables created in xs	2445	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	2446	#Symbol::delete_package __PACKAGE__;
1120		2447
1121	# reload cf.pm	2448	warn "unload completed, starting to reload now";
		2449
1122	$msg->("reloading cf.pm");	2450	warn "reloading cf.pm";
1123	require cf;	2451	require cf;
		2452	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		2453
1125	# load config and database again	2454	warn "loading config and database again";
1126	cf::cfg_load;	2455	cf::cfg_load;
1127	cf::db_load;	2456	cf::db_load;
1128		2457
1129	# load extensions	2458	warn "loading extensions";
1130	$msg->("load extensions");
1131	cf::load_extensions;	2459	cf::load_extensions;
1132		2460
1133	# reattach attachments to objects	2461	warn "reattaching attachments to objects/players";
1134	$msg->("reattach");
1135	_global_reattach;	2462	_global_reattach;
		2463	warn "reattaching attachments to maps";
		2464	reattach $_ for values %MAP;
		2465
		2466	warn "restarting server ticker";
		2467
		2468	$TICK_WATCHER->start;
1136	};	2469	};
1137	$msg->($@) if $@;
1138		2470
1139	$msg->("reloaded");	2471	if ($@) {
		2472	warn $@;
		2473	warn "error while reloading, exiting.";
		2474	exit 1;
		2475	}
		2476
		2477	warn "reloaded";
1140	};	2478	};
1141		2479
1142	sub perl_reload() {	2480	our $RELOAD_WATCHER; # used only during reload
1143	_perl_reload {
1144	warn $_[0];
1145	print "$_[0]\n";
1146	};
1147	}
1148		2481
1149	register "<global>", __PACKAGE__;
1150
1151	register_command "perl-reload" => sub {	2482	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	2483	my ($who, $arg) = @_;
1153		2484
1154	if ($who->flag (FLAG_WIZ)) {	2485	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	2486	$who->message ("reloading server.");
1156	warn $_[0];	2487
1157	$who->message ($_[0]);	2488	# doing reload synchronously and two reloads happen back-to-back,
		2489	# coro crashes during coro_state_free->destroy here.
		2490
		2491	$RELOAD_WATCHER ||= Event->timer (
		2492	reentrant => 0,
		2493	after => 0,
		2494	data => WF_AUTOCANCEL,
		2495	cb => sub {
		2496	reload;
		2497	undef $RELOAD_WATCHER;
		2498	},
1158	};	2499	);
1159	}	2500	}
1160	};	2501	};
1161		2502
1162	unshift @INC, $LIBDIR;	2503	unshift @INC, $LIBDIR;
1163		2504
		2505	my $bug_warning = 0;
		2506
1164	$TICK_WATCHER = Event->timer (	2507	$TICK_WATCHER = Event->timer (
		2508	reentrant => 0,
		2509	parked => 1,
1165	prio => 0,	2510	prio => 0,
1166	at => $NEXT_TICK || 1,	2511	at => $NEXT_TICK || $TICK,
1167	data => WF_AUTOCANCEL,	2512	data => WF_AUTOCANCEL,
1168	cb => sub {	2513	cb => sub {
		2514	if ($Coro::current != $Coro::main) {
		2515	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2516	unless ++$bug_warning > 10;
		2517	return;
		2518	}
		2519
		2520	$NOW = Event::time;
		2521
1169	cf::server_tick; # one server iteration	2522	cf::server_tick; # one server iteration
1170		2523	$RUNTIME += $TICK;
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	2524	$NEXT_TICK += $TICK;
1173		2525
		2526	$WAIT_FOR_TICK->broadcast;
		2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2528
		2529	Event::sweep;
		2530	Coro::cede_notself;
		2531
		2532	# my $AFTER = Event::time;
		2533	# warn $AFTER - $NOW;#d#
		2534
1174	# if we are delayed by four ticks or more, skip them all	2535	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2536	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1176		2537
1177	$TICK_WATCHER->at ($NEXT_TICK);	2538	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	2539	$TICK_WATCHER->start;
1179	},	2540	},
1180	);	2541	);
1181		2542
1182	IO::AIO::max_poll_time $TICK * 0.2;	2543	IO::AIO::max_poll_time $TICK * 0.1;
1183		2544
		2545	undef $Coro::AIO::WATCHER;
		2546	$AIO_POLL_WATCHER = Event->io (
		2547	reentrant => 0,
1184	Event->io (fd => IO::AIO::poll_fileno,	2548	fd => IO::AIO::poll_fileno,
1185	poll => 'r',	2549	poll => 'r',
1186	prio => 5,	2550	prio => 6,
1187	data => WF_AUTOCANCEL,	2551	data => WF_AUTOCANCEL,
1188	cb => \&IO::AIO::poll_cb);	2552	cb => \&IO::AIO::poll_cb,
		2553	);
		2554
		2555	$WRITE_RUNTIME_WATCHER = Event->timer (
		2556	reentrant => 0,
		2557	data => WF_AUTOCANCEL,
		2558	after => 1,
		2559	interval => 10,
		2560	prio => 6, # keep it lowest so it acts like a watchdog
		2561	cb => Coro::unblock_sub {
		2562	write_runtime
		2563	or warn "ERROR: unable to write runtime file: $!";
		2564	},
		2565	);
		2566
		2567	END { cf::emergency_save }
1189		2568
1190	1	2569	1
1191		2570

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines