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 1.96 by root, Fri Dec 22 06:02:29 2006 UTC vs.
Revision 1.212 by root, Tue Feb 13 19:25:44 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18
19	use IO::AIO;	18	use Coro::AIO;
		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
		24	use IO::AIO 2.32 ();
20	use YAML::Syck ();	25	use YAML::Syck ();
21	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
22		30
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
24		34
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
27		37
28	$Coro::main->prio (Coro::PRIO_MIN);	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		39
32	our %COMMAND = ();	40	our %COMMAND = ();
33	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	44	our %EXTCMD = ();
35		45	our %EXT_CORO = (); # coroutines bound to extensions
36	_init_vars;	46	our %EXT_MAP = (); # pluggable maps
37		47
38	our @EVENT;	48	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
40		50
41	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	55	our $NEXT_TICK;
		56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
44		61
45	our %CFG;	62	our %CFG;
46		63
47	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
48		99
49	#############################################################################	100	#############################################################################
50		101
51	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
52		103
53	=over 4	104	=over 4
54		105
55	=item $cf::UPTIME	106	=item $cf::UPTIME
56		107
57	The timestamp of the server start (so not actually an uptime).	108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
58		114
59	=item $cf::LIBDIR	115	=item $cf::LIBDIR
60		116
61	The perl library directory, where extensions and cf-specific modules can	117	The perl library directory, where extensions and cf-specific modules can
62	be found. It will be added to C<@INC> automatically.	118	be found. It will be added to C<@INC> automatically.
63		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
64	=item $cf::TICK	124	=item $cf::TICK
65		125
66	The interval between server ticks, in seconds.	126	The interval between server ticks, in seconds.
67		127
68	=item %cf::CFG	128	=item %cf::CFG
69		129
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
72		139
73	=back	140	=back
74		141
75	=cut	142	=cut
76		143
77	BEGIN {	144	BEGIN {
78	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
80	$msg .= "\n"	149	$msg .= "\n"
81	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
82		151
83	print STDERR "cfperl: $msg";
84	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
85	};	153	};
86	}	154	}
87		155
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94		162
95	# we bless all objects into (empty) derived classes to force a method lookup	163	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	164	# within the Safe compartment.
97	for my $pkg (qw(	165	for my $pkg (qw(
98	cf::global	166	cf::global cf::attachable
99	cf::object cf::object::player	167	cf::object cf::object::player
100	cf::client cf::player	168	cf::client cf::player
101	cf::arch cf::living	169	cf::arch cf::living
102	cf::map cf::party cf::region	170	cf::map cf::party cf::region
103	)) {	171	)) {
…		…
107		175
108	$Event::DIED = sub {	176	$Event::DIED = sub {
109	warn "error in event callback: @_";	177	warn "error in event callback: @_";
110	};	178	};
111		179
112	my %ext_pkg;
113	my @exts;
114	my @hook;
115
116	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
117		181
118	=over 4	182	=over 4
119		183
		184	=item dumpval $ref
		185
120	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
121		206
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
123		208
124	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
125		210
…		…
139	=cut	224	=cut
140		225
141	sub to_json($) {	226	sub to_json($) {
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
143	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
		229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
		294
		295	=item cf::sync_job { BLOCK }
		296
		297	The design of crossfire+ requires that the main coro ($Coro::main) is
		298	always able to handle events or runnable, as crossfire+ is only partly
		299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		300
		301	If it must be done, put the blocking parts into C<sync_job>. This will run
		302	the given BLOCK in another coroutine while waiting for the result. The
		303	server will be frozen during this time, so the block should either finish
		304	fast or be very important.
		305
		306	=cut
		307
		308	sub sync_job(&) {
		309	my ($job) = @_;
		310
		311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
		315	# TODO: use suspend/resume instead
		316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
		326	})->prio (Coro::PRIO_MAX);
		327
		328	while ($busy) {
		329	Coro::cede or Event::one_event;
		330	}
		331
		332	wantarray ? @res : $res[0]
		333	} else {
		334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
		337	}
		338	}
		339
		340	=item $coro = cf::async_ext { BLOCK }
		341
		342	Like async, but this coro is automatically being canceled when the
		343	extension calling this is being unloaded.
		344
		345	=cut
		346
		347	sub async_ext(&) {
		348	my $cb = shift;
		349
		350	my $coro = &Coro::async ($cb);
		351
		352	$coro->on_destroy (sub {
		353	delete $EXT_CORO{$coro+0};
		354	});
		355	$EXT_CORO{$coro+0} = $coro;
		356
		357	$coro
		358	}
		359
		360	sub write_runtime {
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
144	}	384	}
145		385
146	=back	386	=back
147		387
148	=cut	388	=cut
…		…
269	exception.	509	exception.
270		510
271	=cut	511	=cut
272		512
273	# the following variables are defined in .xs and must not be re-created	513	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	514	our @CB_GLOBAL = (); # registry for all global events
		515	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	516	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	517	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	518	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	520	our @CB_MAP = ();
280		521
281	my %attachment;	522	my %attachment;
		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
282		529
283	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
285		532
286	use sort 'stable';	533	use sort 'stable';
…		…
289		536
290	@{$registry->[$event]} = sort	537	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	538	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	539	@{$registry->[$event] || []}, $cb;
293	}	540	}
		541
		542	# hack
		543	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		544
295	# attach handles attaching event callbacks	545	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	546	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	547	# registry (== where the callback attaches to).
298	sub _attach {	548	sub _attach {
…		…
300		550
301	my $object_type;	551	my $object_type;
302	my $prio = 0;	552	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	553	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		554
		555	#TODO: get rid of this hack
		556	if ($attachable_klass{$klass}) {
		557	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		558	}
		559
305	while (@arg) {	560	while (@arg) {
306	my $type = shift @arg;	561	my $type = shift @arg;
307		562
308	if ($type eq "prio") {	563	if ($type eq "prio") {
309	$prio = shift @arg;	564	$prio = shift @arg;
…		…
384	my ($obj, $name) = @_;	639	my ($obj, $name) = @_;
385		640
386	exists $obj->{_attachment}{$name}	641	exists $obj->{_attachment}{$name}
387	}	642	}
388		643
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	644	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	645	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	646	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	647	(\\\@CB_$klass, KLASS_$klass)
393	}	648	}
394		649
…		…
447	=cut	702	=cut
448		703
449	#############################################################################	704	#############################################################################
450	# object support	705	# object support
451		706
452	sub instantiate {
453	my ($obj, $data) = @_;
454
455	$data = from_json $data;
456
457	for (@$data) {
458	my ($name, $args) = @$_;
459
460	$obj->attach ($name, %{$args || {} });
461	}
462	}
463
464	# basically do the same as instantiate, without calling instantiate
465	sub reattach {	707	sub reattach {
		708	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		712
467	my $registry = $obj->registry;	713	my $registry = $obj->registry;
468		714
469	@$registry = ();	715	@$registry = ();
470		716
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	717	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	726	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	727	}
482	}	728	}
483	}	729	}
484		730
485	sub object_freezer_save {	731	cf::attachable->attach (
486	my ($filename, $rdata, $objs) = @_;
487
488	if (length $$rdata) {
489	warn sprintf "saving %s (%d,%d)\n",
490	$filename, length $$rdata, scalar @$objs;
491
492	if (open my $fh, ">:raw", "$filename~") {
493	chmod SAVE_MODE, $fh;
494	syswrite $fh, $$rdata;
495	close $fh;
496
497	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498	chmod SAVE_MODE, $fh;
499	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500	close $fh;
501	rename "$filename.pst~", "$filename.pst";
502	} else {
503	unlink "$filename.pst";
504	}
505
506	rename "$filename~", $filename;
507	} else {
508	warn "FATAL: $filename~: $!\n";
509	}
510	} else {
511	unlink $filename;
512	unlink "$filename.pst";
513	}
514	}
515
516	sub object_freezer_as_string {
517	my ($rdata, $objs) = @_;
518
519	use Data::Dumper;
520
521	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	732	prio => -1000000,
		733	on_instantiate => sub {
		734	my ($obj, $data) = @_;
		735
		736	$data = from_json $data;
		737
		738	for (@$data) {
		739	my ($name, $args) = @$_;
		740
		741	$obj->attach ($name, %{$args || {} });
		742	}
		743	},
		744	on_reattach => \&reattach,
545	on_clone => sub {	745	on_clone => sub {
546	my ($src, $dst) = @_;	746	my ($src, $dst) = @_;
547		747
548	@{$dst->registry} = @{$src->registry};	748	@{$dst->registry} = @{$src->registry};
549		749
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	752	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	753	if exists $src->{_attachment};
554	},	754	},
555	);	755	);
556		756
		757	sub object_freezer_save {
		758	my ($filename, $rdata, $objs) = @_;
		759
		760	sync_job {
		761	if (length $$rdata) {
		762	warn sprintf "saving %s (%d,%d)\n",
		763	$filename, length $$rdata, scalar @$objs;
		764
		765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		766	chmod SAVE_MODE, $fh;
		767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
		769	close $fh;
		770
		771	if (@$objs) {
		772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		773	chmod SAVE_MODE, $fh;
		774	my $data = Storable::nfreeze { version => 1, objs => $objs };
		775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
		778	aio_rename "$filename.pst~", "$filename.pst";
		779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
		785	} else {
		786	warn "FATAL: $filename~: $!\n";
		787	}
		788	} else {
		789	aio_unlink $filename;
		790	aio_unlink "$filename.pst";
		791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
		798	}
		799	}
		800
		801	sub object_freezer_as_string {
		802	my ($rdata, $objs) = @_;
		803
		804	use Data::Dumper;
		805
		806	$$rdata . Dumper $objs
		807	}
		808
		809	sub object_thawer_load {
		810	my ($filename) = @_;
		811
		812	my ($data, $av);
		813
		814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
		816
		817	(aio_load $filename, $data) >= 0
		818	or return;
		819
		820	unless (aio_stat "$filename.pst") {
		821	(aio_load "$filename.pst", $av) >= 0
		822	or return;
		823	$av = eval { (Storable::thaw $av)->{objs} };
		824	}
		825
		826	warn sprintf "loading %s (%d)\n",
		827	$filename, length $data, scalar @{$av || []};#d#
		828	return ($data, $av);
		829	}
		830
557	#############################################################################	831	#############################################################################
558	# command handling &c	832	# command handling &c
559		833
560	=item cf::register_command $name => \&callback($ob,$args);	834	=item cf::register_command $name => \&callback($ob,$args);
561		835
…		…
583	=cut	857	=cut
584		858
585	sub register_extcmd {	859	sub register_extcmd {
586	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
587		861
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
592	}	863	}
593		864
594	cf::player->attach (	865	cf::player->attach (
595	on_command => sub {	866	on_command => sub {
596	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
609		880
610	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
611		882
612	if (ref $msg) {	883	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	887	}
617	}	888	}
618	} else {	889	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		892
622	cf::override;	893	cf::override;
623	},	894	},
624	);	895	);
625		896
626	sub register {
627	my ($base, $pkg) = @_;
628
629	#TODO
630	}
631
632	sub load_extension {	897	sub load_extension {
633	my ($path) = @_;	898	my ($path) = @_;
634		899
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
636	my $base = $1;	901	my $base = $1;
637	my $pkg = $1;	902	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
640		905
641	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
642		907
643	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
644	or die "$path: $!";	909	or die "$path: $!";
645		910
646	my $source =	911	my $source =
647	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
650	. "\n};\n1";	915	. "\n};\n1";
651		916
652	eval $source	917	unless (eval $source) {
653	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
654	: "extension disabled.\n";	919	: "extension disabled.\n";
655		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
656	push @exts, $pkg;	921	warn $@;
657	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
658		923	exit 1;
659	# no strict 'refs';	924	}
660	# @{"$pkg\::ISA"} = ext::;	925	die $@;
661
662	register $base, $pkg;
663	}
664
665	sub unload_extension {
666	my ($pkg) = @_;
667
668	warn "removing extension $pkg\n";
669
670	# remove hooks
671	#TODO
672	# for my $idx (0 .. $#PLUGIN_EVENT) {
673	# delete $hook[$idx]{$pkg};
674	# }	926	}
675		927
676	# remove commands	928	push @EXTS, $pkg;
677	for my $name (keys %COMMAND) {
678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
679
680	if (@cb) {
681	$COMMAND{$name} = \@cb;
682	} else {
683	delete $COMMAND{$name};
684	}
685	}
686
687	# remove extcmds
688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
689	delete $EXTCMD{$name};
690	}
691
692	if (my $cb = $pkg->can ("unload")) {
693	eval {
694	$cb->($pkg);
695	1
696	} or warn "$pkg unloaded, but with errors: $@";
697	}
698
699	Symbol::delete_package $pkg;
700	}	929	}
701		930
702	sub load_extensions {	931	sub load_extensions {
703	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	933	next unless -r $ext;
…		…
708	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
709	}	938	}
710	}	939	}
711		940
712	#############################################################################	941	#############################################################################
713	# load/save/clean perl data associated with a map
714		942
715	*cf::mapsupport::on_clean = sub {	943	=head2 CORE EXTENSIONS
		944
		945	Functions and methods that extend core crossfire objects.
		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
		953	=head3 cf::player
		954
		955	=over 4
		956
		957	=item cf::player::find $login
		958
		959	Returns the given player object, loading it if necessary (might block).
		960
		961	=cut
		962
		963	sub playerdir($) {
		964	cf::localdir
		965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
		1111	}
		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . cf::to_json \%msg);
		1125	}
		1126
		1127	package cf;
		1128
		1129	=back
		1130
		1131
		1132	=head3 cf::map
		1133
		1134	=over 4
		1135
		1136	=cut
		1137
		1138	package cf::map;
		1139
		1140	use Fcntl;
		1141	use Coro::AIO;
		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
		1147	our $MAX_RESET = 3600;
		1148	our $DEFAULT_RESET = 3000;
		1149
		1150	sub generate_random_map {
		1151	my ($self, $rmp) = @_;
		1152	# mit "rum" bekleckern, nicht
		1153	$self->_create_random_map (
		1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1157	$rmp->{exit_on_final_map},
		1158	$rmp->{xsize}, $rmp->{ysize},
		1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1295	}
		1296
		1297	# and all this just because we cannot iterate over
		1298	# all maps in C++...
		1299	sub change_all_map_light {
		1300	my ($change) = @_;
		1301
		1302	$_->change_map_light ($change)
		1303	for grep $_->outdoor, values %cf::MAP;
		1304	}
		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
716	my ($map) = @_;	1475	my ($map) = @_;
717		1476
718	my $path = $map->tmpname;	1477	my @diag; # diagonal neighbours
719	defined $path or return;
720		1478
721	unlink "$path.pst";	1479	for (0 .. 3) {
722	};	1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
723		1485
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
725		1489
726	#############################################################################	1490	for (@diag) {
727	# load/save perl data associated with player->ob objects	1491	my $neigh = find @$_
728		1492	or next;
729	sub all_objects(@) {	1493	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1494	}
731	}	1495	}
732		1496
733	# TODO: compatibility cruft, remove when no longer needed	1497	sub find_sync {
734	cf::player->attach (	1498	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1499
738	for my $o (all_objects $pl->ob) {	1500	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1501	}
740	$o->set_ob_key_value ("_perl_data");
741		1502
742	%$o = %{ Storable::thaw pack "H*", $value };	1503	sub do_load_sync {
		1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
743	}	1530	}
744	}	1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
		1539	sub save {
		1540	my ($self) = @_;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
		1561	if ($uniq) {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1564	} else {
		1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1566	}
746	);	1567	}
747		1568
748	#############################################################################	1569	sub swap_out {
		1570	my ($self) = @_;
749		1571
750	=head2 CORE EXTENSIONS	1572	# save first because save cedes
		1573	$self->save;
751		1574
752	Functions and methods that extend core crossfire objects.	1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1576
754	=head3 cf::player	1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	$self->in_memory (cf::MAP_SWAPPED);
		1615
		1616	# need to save uniques path
		1617	unless ($self->{deny_save}) {
		1618	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1619
		1620	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1621	if $uniq;
		1622	}
		1623
		1624	delete $cf::MAP{$self->path};
		1625
		1626	$self->clear;
		1627
		1628	$_->clear_links_to ($self) for values %cf::MAP;
		1629
		1630	$self->unlink_save;
		1631	$self->destroy;
		1632	}
		1633
		1634	my $nuke_counter = "aaaa";
		1635
		1636	sub nuke {
		1637	my ($self) = @_;
		1638
		1639	delete $cf::MAP{$self->path};
		1640
		1641	$self->unlink_save;
		1642
		1643	bless $self, "cf::map";
		1644	delete $self->{deny_reset};
		1645	$self->{deny_save} = 1;
		1646	$self->reset_timeout (1);
		1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1648
		1649	$cf::MAP{$self->path} = $self;
		1650
		1651	$self->reset; # polite request, might not happen
		1652	}
		1653
		1654	=item cf::map::unique_maps
		1655
		1656	Returns an arrayref of paths of all shared maps that have
		1657	instantiated unique items. May block.
		1658
		1659	=cut
		1660
		1661	sub unique_maps() {
		1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1663	or return;
		1664
		1665	my @paths;
		1666
		1667	for (@$files) {
		1668	utf8::decode $_;
		1669	next if /\.pst$/;
		1670	next unless /^$PATH_SEP/o;
		1671
		1672	push @paths, cf::map::normalise $_;
		1673	}
		1674
		1675	\@paths
		1676	}
		1677
		1678	package cf;
		1679
		1680	=back
		1681
		1682	=head3 cf::object
		1683
		1684	=cut
		1685
		1686	package cf::object;
755		1687
756	=over 4	1688	=over 4
757		1689
758	=item cf::player::exists $login	1690	=item $ob->inv_recursive
759		1691
760	Returns true when the given account exists.	1692	Returns the inventory of the object _and_ their inventories, recursively.
761		1693
762	=cut	1694	=cut
763		1695
764	sub cf::player::exists($) {	1696	sub inv_recursive_;
765	cf::player::find $_[0]	1697	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1698	map { $_, inv_recursive_ $_->inv } @_
767	}	1699	}
768		1700
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1701	sub inv_recursive {
770		1702	inv_recursive_ inv $_[0]
771	Sends an ext reply to the player.
772
773	=cut
774
775	sub cf::player::ext_reply($$$%) {
776	my ($self, $id, %msg) = @_;
777
778	$msg{msgid} = $id;
779
780	$self->send ("ext " . to_json \%msg);
781	}	1703	}
		1704
		1705	package cf;
782		1706
783	=back	1707	=back
784		1708
785	=head3 cf::object::player	1709	=head3 cf::object::player
786		1710
…		…
824	(ref $cf::CFG{"may_$access"}	1748	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1749	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1750	: $cf::CFG{"may_$access"})
827	}	1751	}
828		1752
		1753	=item $player_object->enter_link
		1754
		1755	Freezes the player and moves him/her to a special map (C<{link}>).
		1756
		1757	The player should be reasonably safe there for short amounts of time. You
		1758	I<MUST> call C<leave_link> as soon as possible, though.
		1759
		1760	Will never block.
		1761
		1762	=item $player_object->leave_link ($map, $x, $y)
		1763
		1764	Moves the player out of the special C<{link}> map onto the specified
		1765	map. If the map is not valid (or omitted), the player will be moved back
		1766	to the location he/she was before the call to C<enter_link>, or, if that
		1767	fails, to the emergency map position.
		1768
		1769	Might block.
		1770
		1771	=cut
		1772
		1773	sub link_map {
		1774	unless ($LINK_MAP) {
		1775	$LINK_MAP = cf::map::find "{link}"
		1776	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1777	$LINK_MAP->load;
		1778	}
		1779
		1780	$LINK_MAP
		1781	}
		1782
		1783	sub cf::object::player::enter_link {
		1784	my ($self) = @_;
		1785
		1786	$self->deactivate_recursive;
		1787
		1788	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1789
		1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1791	if $self->map;
		1792
		1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1794	}
		1795
		1796	sub cf::object::player::leave_link {
		1797	my ($self, $map, $x, $y) = @_;
		1798
		1799	my $link_pos = delete $self->{_link_pos};
		1800
		1801	unless ($map) {
		1802	# restore original map position
		1803	($map, $x, $y) = @{ $link_pos || [] };
		1804	$map = cf::map::find $map;
		1805
		1806	unless ($map) {
		1807	($map, $x, $y) = @$EMERGENCY_POSITION;
		1808	$map = cf::map::find $map
		1809	or die "FATAL: cannot load emergency map\n";
		1810	}
		1811	}
		1812
		1813	($x, $y) = (-1, -1)
		1814	unless (defined $x) && (defined $y);
		1815
		1816	# use -1 or undef as default coordinates, not 0, 0
		1817	($x, $y) = ($map->enter_x, $map->enter_y)
		1818	if $x <=0 && $y <= 0;
		1819
		1820	$map->load;
		1821	$map->load_diag;
		1822
		1823	return unless $self->contr->active;
		1824	$self->activate_recursive;
		1825	$self->enter_map ($map, $x, $y);
		1826	}
		1827
		1828	cf::player->attach (
		1829	on_logout => sub {
		1830	my ($pl) = @_;
		1831
		1832	# abort map switching before logout
		1833	if ($pl->ob->{_link_pos}) {
		1834	cf::sync_job {
		1835	$pl->ob->leave_link
		1836	};
		1837	}
		1838	},
		1839	on_login => sub {
		1840	my ($pl) = @_;
		1841
		1842	# try to abort aborted map switching on player login :)
		1843	# should happen only on crashes
		1844	if ($pl->ob->{_link_pos}) {
		1845	$pl->ob->enter_link;
		1846	(async {
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	$pl->ob->reply (undef,
		1850	"There was an internal problem at your last logout, "
		1851	. "the server will try to bring you to your intended destination in a second.",
		1852	cf::NDI_RED);
		1853	Coro::Timer::sleep 1;
		1854	$pl->ob->leave_link;
		1855	})->prio (2);
		1856	}
		1857	},
		1858	);
		1859
		1860	=item $player_object->goto ($path, $x, $y)
		1861
		1862	=cut
		1863
		1864	sub cf::object::player::goto {
		1865	my ($self, $path, $x, $y) = @_;
		1866
		1867	$self->enter_link;
		1868
		1869	(async {
		1870	my $map = eval {
		1871	my $map = cf::map::find $path;
		1872	$map = $map->customise_for ($self) if $map;
		1873	$map
		1874	} or
		1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1876
		1877	$self->leave_link ($map, $x, $y);
		1878	})->prio (1);
		1879	}
		1880
		1881	=item $player_object->enter_exit ($exit_object)
		1882
		1883	=cut
		1884
		1885	sub parse_random_map_params {
		1886	my ($spec) = @_;
		1887
		1888	my $rmp = { # defaults
		1889	xsize => (cf::rndm 15, 40),
		1890	ysize => (cf::rndm 15, 40),
		1891	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1892	#layout => string,
		1893	};
		1894
		1895	for (split /\n/, $spec) {
		1896	my ($k, $v) = split /\s+/, $_, 2;
		1897
		1898	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1899	}
		1900
		1901	$rmp
		1902	}
		1903
		1904	sub prepare_random_map {
		1905	my ($exit) = @_;
		1906
		1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1908
		1909	# all this does is basically replace the /! path by
		1910	# a new random map path (?random/...) with a seed
		1911	# that depends on the exit object
		1912
		1913	my $rmp = parse_random_map_params $exit->msg;
		1914
		1915	if ($exit->map) {
		1916	$rmp->{region} = $exit->region->name;
		1917	$rmp->{origin_map} = $exit->map->path;
		1918	$rmp->{origin_x} = $exit->x;
		1919	$rmp->{origin_y} = $exit->y;
		1920	}
		1921
		1922	$rmp->{random_seed} ||= $exit->random_seed;
		1923
		1924	my $data = cf::to_json $rmp;
		1925	my $md5 = Digest::MD5::md5_hex $data;
		1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1927
		1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1929	aio_write $fh, 0, (length $data), $data, 0;
		1930	undef $fh;
		1931	aio_rename "$meta~", $meta;
		1932
		1933	$exit->slaying ("?random/$md5");
		1934	$exit->msg (undef);
		1935	}
		1936	}
		1937
		1938	sub cf::object::player::enter_exit {
		1939	my ($self, $exit) = @_;
		1940
		1941	return unless $self->type == cf::PLAYER;
		1942
		1943	if ($exit->slaying eq "/!") {
		1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1945	cf::sync_job { prepare_random_map $exit };
		1946	}
		1947
		1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1949	my $hp = $exit->stats->hp;
		1950	my $sp = $exit->stats->sp;
		1951
		1952	$self->enter_link;
		1953
		1954	(async {
		1955	$self->deactivate_recursive; # just to be sure
		1956	unless (eval {
		1957	$self->goto ($slaying, $hp, $sp);
		1958
		1959	1;
		1960	}) {
		1961	$self->message ("Something went wrong deep within the crossfire server. "
		1962	. "I'll try to bring you back to the map you were before. "
		1963	. "Please report this to the dungeon master!",
		1964	cf::NDI_UNIQUE | cf::NDI_RED);
		1965
		1966	warn "ERROR in enter_exit: $@";
		1967	$self->leave_link;
		1968	}
		1969	})->prio (1);
		1970	}
		1971
829	=head3 cf::client	1972	=head3 cf::client
830		1973
831	=over 4	1974	=over 4
832		1975
833	=item $client->send_drawinfo ($text, $flags)	1976	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	2019	on_reply => sub {
877	my ($ns, $msg) = @_;	2020	my ($ns, $msg) = @_;
878		2021
879	# this weird shuffling is so that direct followup queries	2022	# this weird shuffling is so that direct followup queries
880	# get handled first	2023	# get handled first
881	my $queue = delete $ns->{query_queue};	2024	my $queue = delete $ns->{query_queue}
		2025	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2026
883	(shift @$queue)->[1]->($msg);	2027	(shift @$queue)->[1]->($msg);
		2028	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2029
885	push @{ $ns->{query_queue} }, @$queue;	2030	push @{ $ns->{query_queue} }, @$queue;
886		2031
887	if (@{ $ns->{query_queue} } == @$queue) {	2032	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2033	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	2034	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	2035	} else {
891	$ns->state (ST_PLAYING);	2036	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	2037	}
893	}	2038	}
894	},	2039	},
895	);	2040	);
896		2041
897	=item $client->coro (\&cb)	2042	=item $client->async (\&cb)
898		2043
899	Create a new coroutine, running the specified callback. The coroutine will	2044	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2045	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2046	or loss of connection).
902		2047
903	=cut	2048	=cut
904		2049
905	sub cf::client::coro {	2050	sub cf::client::async {
906	my ($self, $cb) = @_;	2051	my ($self, $cb) = @_;
907		2052
908	my $coro; $coro = async {	2053	my $coro = &Coro::async ($cb);
909	eval {	2054
910	$cb->();	2055	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	warn "cancel myself\n";#d#
914	delete $self->{_coro}{$coro+0};	2056	delete $self->{_coro}{$coro+0};
915	};	2057	});
916		2058
917	$self->{_coro}{$coro+0} = $coro;	2059	$self->{_coro}{$coro+0} = $coro;
		2060
		2061	$coro
918	}	2062	}
919		2063
920	cf::client->attach (	2064	cf::client->attach (
921	on_destroy => sub {	2065	on_destroy => sub {
922	my ($ns) = @_;	2066	my ($ns) = @_;
923		2067
924	warn "cancel $_" for values %{ $ns->{_coro} || {} };#d#
925	$_->cancel for values %{ $ns->{_coro} || {} };	2068	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
926	},	2069	},
927	);	2070	);
928		2071
929	=back	2072	=back
930		2073
…		…
1051	The parameter C<$family> should best start with the name of the extension	2194	The parameter C<$family> should best start with the name of the extension
1052	using it, it should be unique.	2195	using it, it should be unique.
1053		2196
1054	=over 4	2197	=over 4
1055		2198
1056	=item $hashref = cf::db_get $family
1057
1058	Return a hashref for use by the extension C<$family>, which can be
1059	modified. After modifications, you have to call C<cf::db_dirty> or
1060	C<cf::db_sync>.
1061
1062	=item $value = cf::db_get $family => $key	2199	=item $value = cf::db_get $family => $key
1063		2200
1064	Returns a single value from the database	2201	Returns a single value from the database.
1065
1066	=item cf::db_put $family => $hashref
1067
1068	Stores the given family hashref into the database. Updates are delayed, if
1069	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1070		2202
1071	=item cf::db_put $family => $key => $value	2203	=item cf::db_put $family => $key => $value
1072		2204
1073	Stores the given C<$value> in the family hash. Updates are delayed, if you	2205	Stores the given C<$value> in the family.
1074	want the data to be synced to disk immediately, use C<cf::db_sync>.
1075
1076	=item cf::db_dirty
1077
1078	Marks the database as dirty, to be updated at a later time.
1079
1080	=item cf::db_sync
1081
1082	Immediately write the database to disk I<if it is dirty>.
1083		2206
1084	=cut	2207	=cut
1085		2208
1086	our $DB;	2209	our $DB;
1087		2210
1088	{	2211	sub db_init {
		2212	unless ($DB) {
		2213	$DB = BDB::db_create $DB_ENV;
		2214
		2215	cf::sync_job {
		2216	eval {
		2217	$DB->set_flags (BDB::CHKSUM);
		2218
		2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2221	cf::cleanup "db_open(db): $!" if $!;
		2222	};
		2223	cf::cleanup "db_open(db): $@" if $@;
		2224	};
		2225
1089	my $path = cf::localdir . "/database.pst";	2226	my $path = cf::localdir . "/database.pst";
		2227	if (stat $path) {
		2228	cf::sync_job {
		2229	my $pst = Storable::retrieve $path;
1090		2230
1091	sub db_load() {	2231	cf::db_put (board => data => $pst->{board});
1092	warn "loading database $path\n";#d# remove later	2232	cf::db_put (guildrules => data => $pst->{guildrules});
1093	$DB = stat $path ? Storable::retrieve $path : { };	2233	cf::db_put (rent => balance => $pst->{rent}{balance});
1094	}	2234	BDB::db_env_txn_checkpoint $DB_ENV;
1095		2235
1096	my $pid;	2236	unlink $path;
1097
1098	sub db_save() {
1099	warn "saving database $path\n";#d# remove later
1100	waitpid $pid, 0 if $pid;
1101	if (0 == ($pid = fork)) {
1102	$DB->{_meta}{version} = 1;
1103	Storable::nstore $DB, "$path~";
1104	rename "$path~", $path;
1105	cf::_exit 0 if defined $pid;
1106	}	2237	};
1107	}
1108
1109	my $dirty;
1110
1111	sub db_sync() {
1112	db_save if $dirty;
1113	undef $dirty;
1114	}
1115
1116	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1117	db_sync;
1118	});
1119
1120	sub db_dirty() {
1121	$dirty = 1;
1122	$idle->start;
1123	}
1124
1125	sub db_get($;$) {
1126	@_ >= 2
1127	? $DB->{$_[0]}{$_[1]}
1128	: ($DB->{$_[0]} ||= { })
1129	}
1130
1131	sub db_put($$;$) {
1132	if (@_ >= 3) {
1133	$DB->{$_[0]}{$_[1]} = $_[2];
1134	} else {
1135	$DB->{$_[0]} = $_[1];
1136	}
1137	db_dirty;
1138	}
1139
1140	cf::global->attach (
1141	prio => 10000,
1142	on_cleanup => sub {
1143	db_sync;
1144	},	2238	}
1145	);	2239	}
		2240	}
		2241
		2242	sub db_get($$) {
		2243	my $key = "$_[0]/$_[1]";
		2244
		2245	cf::sync_job {
		2246	BDB::db_get $DB, undef, $key, my $data;
		2247
		2248	$! ? ()
		2249	: Compress::LZF::sthaw $data
		2250	}
		2251	}
		2252
		2253	sub db_put($$$) {
		2254	BDB::dbreq_pri 4;
		2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1146	}	2256	}
1147		2257
1148	#############################################################################	2258	#############################################################################
1149	# the server's main()	2259	# the server's init and main functions
		2260
		2261	sub load_resources {
		2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2263	or die "unable to load regions file\n";#d#
		2264	}
1150		2265
1151	sub cfg_load {	2266	sub cfg_load {
1152	open my $fh, "<:utf8", cf::confdir . "/config"	2267	open my $fh, "<:utf8", cf::confdir . "/config"
1153	or return;	2268	or return;
1154		2269
1155	local $/;	2270	local $/;
1156	*CFG = YAML::Syck::Load <$fh>;	2271	*CFG = YAML::Syck::Load <$fh>;
		2272
		2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2274
		2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2277
		2278	if (exists $CFG{mlockall}) {
		2279	eval {
		2280	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2281	and die "WARNING: m(un)lockall failed: $!\n";
		2282	};
		2283	warn $@ if $@;
		2284	}
		2285	}
		2286
		2287	sub init {
		2288	load_resources;
1157	}	2289	}
1158		2290
1159	sub main {	2291	sub main {
		2292	# we must not ever block the main coroutine
		2293	local $Coro::idle = sub {
		2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2295	(async {
		2296	Event::one_event;
		2297	})->prio (Coro::PRIO_MAX);
		2298	};
		2299
1160	cfg_load;	2300	cfg_load;
1161	db_load;	2301	db_init;
1162	load_extensions;	2302	load_extensions;
		2303
		2304	$TICK_WATCHER->start;
1163	Event::loop;	2305	Event::loop;
1164	}	2306	}
1165		2307
1166	#############################################################################	2308	#############################################################################
1167	# initialisation	2309	# initialisation and cleanup
1168		2310
		2311	# install some emergency cleanup handlers
		2312	BEGIN {
		2313	for my $signal (qw(INT HUP TERM)) {
		2314	Event->signal (
		2315	reentrant => 0,
		2316	data => WF_AUTOCANCEL,
		2317	signal => $signal,
		2318	prio => 0,
		2319	cb => sub {
		2320	cf::cleanup "SIG$signal";
		2321	},
		2322	);
		2323	}
		2324	}
		2325
		2326	sub emergency_save() {
		2327	my $freeze_guard = cf::freeze_mainloop;
		2328
		2329	warn "enter emergency perl save\n";
		2330
		2331	cf::sync_job {
		2332	# use a peculiar iteration method to avoid tripping on perl
		2333	# refcount bugs in for. also avoids problems with players
		2334	# and maps saved/destroyed asynchronously.
		2335	warn "begin emergency player save\n";
		2336	for my $login (keys %cf::PLAYER) {
		2337	my $pl = $cf::PLAYER{$login} or next;
		2338	$pl->valid or next;
		2339	$pl->save;
		2340	}
		2341	warn "end emergency player save\n";
		2342
		2343	warn "begin emergency map save\n";
		2344	for my $path (keys %cf::MAP) {
		2345	my $map = $cf::MAP{$path} or next;
		2346	$map->valid or next;
		2347	$map->save;
		2348	}
		2349	warn "end emergency map save\n";
		2350
		2351	warn "begin emergency database checkpoint\n";
		2352	BDB::db_env_txn_checkpoint $DB_ENV;
		2353	warn "end emergency database checkpoint\n";
		2354	};
		2355
		2356	warn "leave emergency perl save\n";
		2357	}
		2358
		2359	sub post_cleanup {
		2360	my ($make_core) = @_;
		2361
		2362	warn Carp::longmess "post_cleanup backtrace"
		2363	if $make_core;
		2364	}
		2365
1169	sub _perl_reload(&) {	2366	sub reload() {
1170	my ($msg) = @_;	2367	# can/must only be called in main
		2368	if ($Coro::current != $Coro::main) {
		2369	warn "can only reload from main coroutine";
		2370	return;
		2371	}
1171		2372
1172	$msg->("reloading...");	2373	warn "reloading...";
1173		2374
1174	eval {	2375	warn "entering sync_job";
1175	# cancel all watchers	2376
		2377	sync_job {
		2378	write_runtime;
		2379	cf::emergency_save;
		2380	write_runtime;
		2381
		2382	warn "syncing database to disk";
		2383	BDB::db_env_txn_checkpoint $DB_ENV;
		2384
		2385	# if anything goes wrong in here, we should simply crash as we already saved
		2386
		2387	warn "cancelling all WF_AUTOCANCEL watchers";
1176	for (Event::all_watchers) {	2388	for (Event::all_watchers) {
1177	$_->cancel if $_->data & WF_AUTOCANCEL;	2389	$_->cancel if $_->data & WF_AUTOCANCEL;
1178	}	2390	}
1179		2391
1180	# unload all extensions	2392	warn "flushing outstanding aio requests";
1181	for (@exts) {	2393	for (;;) {
1182	$msg->("unloading <$_>");	2394	BDB::flush;
1183	unload_extension $_;	2395	IO::AIO::flush;
		2396	Coro::cede;
		2397	last unless IO::AIO::nreqs || BDB::nreqs;
		2398	warn "iterate...";
		2399	}
		2400
		2401	warn "cancelling all extension coros";
		2402	$_->cancel for values %EXT_CORO;
		2403	%EXT_CORO = ();
		2404
		2405	warn "removing commands";
		2406	%COMMAND = ();
		2407
		2408	warn "removing ext commands";
		2409	%EXTCMD = ();
		2410
		2411	warn "unloading/nuking all extensions";
		2412	for my $pkg (@EXTS) {
		2413	warn "... unloading $pkg";
		2414
		2415	if (my $cb = $pkg->can ("unload")) {
		2416	eval {
		2417	$cb->($pkg);
		2418	1
		2419	} or warn "$pkg unloaded, but with errors: $@";
1184	}	2420	}
1185		2421
		2422	warn "... nuking $pkg";
		2423	Symbol::delete_package $pkg;
		2424	}
		2425
1186	# unload all modules loaded from $LIBDIR	2426	warn "unloading all perl modules loaded from $LIBDIR";
1187	while (my ($k, $v) = each %INC) {	2427	while (my ($k, $v) = each %INC) {
1188	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2428	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1189		2429
1190	$msg->("removing <$k>");	2430	warn "... unloading $k";
1191	delete $INC{$k};	2431	delete $INC{$k};
1192		2432
1193	$k =~ s/\.pm$//;	2433	$k =~ s/\.pm$//;
1194	$k =~ s/\//::/g;	2434	$k =~ s/\//::/g;
1195		2435
…		…
1198	}	2438	}
1199		2439
1200	Symbol::delete_package $k;	2440	Symbol::delete_package $k;
1201	}	2441	}
1202		2442
1203	# sync database to disk
1204	cf::db_sync;
1205
1206	# get rid of safe::, as good as possible	2443	warn "getting rid of safe::, as good as possible";
1207	Symbol::delete_package "safe::$_"	2444	Symbol::delete_package "safe::$_"
1208	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2445	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1209		2446
1210	# remove register_script_function callbacks
1211	# TODO
1212
1213	# unload cf.pm "a bit"	2447	warn "unloading cf.pm \"a bit\"";
1214	delete $INC{"cf.pm"};	2448	delete $INC{"cf.pm"};
1215		2449
1216	# don't, removes xs symbols, too,	2450	# don't, removes xs symbols, too,
1217	# and global variables created in xs	2451	# and global variables created in xs
1218	#Symbol::delete_package __PACKAGE__;	2452	#Symbol::delete_package __PACKAGE__;
1219		2453
1220	# reload cf.pm	2454	warn "unload completed, starting to reload now";
		2455
1221	$msg->("reloading cf.pm");	2456	warn "reloading cf.pm";
1222	require cf;	2457	require cf;
		2458	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1223		2459
1224	# load config and database again	2460	warn "loading config and database again";
1225	cf::cfg_load;	2461	cf::cfg_load;
1226	cf::db_load;
1227		2462
1228	# load extensions	2463	warn "loading extensions";
1229	$msg->("load extensions");
1230	cf::load_extensions;	2464	cf::load_extensions;
1231		2465
1232	# reattach attachments to objects	2466	warn "reattaching attachments to objects/players";
1233	$msg->("reattach");
1234	_global_reattach;	2467	_global_reattach;
		2468	warn "reattaching attachments to maps";
		2469	reattach $_ for values %MAP;
		2470
		2471	warn "loading reloadable resources";
		2472	load_resources;
		2473
		2474	warn "leaving sync_job";
		2475
		2476	1
		2477	} or do {
		2478	warn $@;
		2479	warn "error while reloading, exiting.";
		2480	exit 1;
1235	};	2481	};
1236	$msg->($@) if $@;
1237		2482
1238	$msg->("reloaded");	2483	warn "reloaded";
1239	};	2484	};
1240		2485
1241	sub perl_reload() {	2486	our $RELOAD_WATCHER; # used only during reload
1242	_perl_reload {
1243	warn $_[0];
1244	print "$_[0]\n";
1245	};
1246	}
1247		2487
1248	register "<global>", __PACKAGE__;
1249
1250	register_command "perl-reload" => sub {	2488	register_command "reload" => sub {
1251	my ($who, $arg) = @_;	2489	my ($who, $arg) = @_;
1252		2490
1253	if ($who->flag (FLAG_WIZ)) {	2491	if ($who->flag (FLAG_WIZ)) {
1254	_perl_reload {	2492	$who->message ("reloading server.");
1255	warn $_[0];	2493
1256	$who->message ($_[0]);	2494	# doing reload synchronously and two reloads happen back-to-back,
		2495	# coro crashes during coro_state_free->destroy here.
		2496
		2497	$RELOAD_WATCHER ||= Event->timer (
		2498	reentrant => 0,
		2499	after => 0,
		2500	data => WF_AUTOCANCEL,
		2501	cb => sub {
		2502	reload;
		2503	undef $RELOAD_WATCHER;
		2504	},
1257	};	2505	);
1258	}	2506	}
1259	};	2507	};
1260		2508
1261	unshift @INC, $LIBDIR;	2509	unshift @INC, $LIBDIR;
1262		2510
		2511	my $bug_warning = 0;
		2512
1263	$TICK_WATCHER = Event->timer (	2513	$TICK_WATCHER = Event->timer (
		2514	reentrant => 0,
		2515	parked => 1,
1264	prio => 0,	2516	prio => 0,
1265	at => $NEXT_TICK || 1,	2517	at => $NEXT_TICK || $TICK,
1266	data => WF_AUTOCANCEL,	2518	data => WF_AUTOCANCEL,
1267	cb => sub {	2519	cb => sub {
		2520	if ($Coro::current != $Coro::main) {
		2521	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2522	unless ++$bug_warning > 10;
		2523	return;
		2524	}
		2525
		2526	$NOW = Event::time;
		2527
1268	cf::server_tick; # one server iteration	2528	cf::server_tick; # one server iteration
1269		2529	$RUNTIME += $TICK;
1270	my $NOW = Event::time;
1271	$NEXT_TICK += $TICK;	2530	$NEXT_TICK += $TICK;
1272		2531
		2532	$WAIT_FOR_TICK->broadcast;
		2533	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2534
		2535	# my $AFTER = Event::time;
		2536	# warn $AFTER - $NOW;#d#
		2537
1273	# if we are delayed by four ticks or more, skip them all	2538	# if we are delayed by four ticks or more, skip them all
1274	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2539	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1275		2540
1276	$TICK_WATCHER->at ($NEXT_TICK);	2541	$TICK_WATCHER->at ($NEXT_TICK);
1277	$TICK_WATCHER->start;	2542	$TICK_WATCHER->start;
1278	},	2543	},
1279	);	2544	);
1280		2545
		2546	{
		2547	BDB::max_poll_time $TICK * 0.1;
		2548	$BDB_POLL_WATCHER = Event->io (
		2549	reentrant => 0,
		2550	fd => BDB::poll_fileno,
		2551	poll => 'r',
		2552	prio => 0,
		2553	data => WF_AUTOCANCEL,
		2554	cb => \&BDB::poll_cb,
		2555	);
		2556	BDB::min_parallel 8;
		2557
		2558	BDB::set_sync_prepare {
		2559	my $status;
		2560	my $current = $Coro::current;
		2561	(
		2562	sub {
		2563	$status = $!;
		2564	$current->ready; undef $current;
		2565	},
		2566	sub {
		2567	Coro::schedule while defined $current;
		2568	$! = $status;
		2569	},
		2570	)
		2571	};
		2572
		2573	unless ($DB_ENV) {
		2574	$DB_ENV = BDB::db_env_create;
		2575
		2576	cf::sync_job {
		2577	eval {
		2578	BDB::db_env_open
		2579	$DB_ENV,
		2580	$BDB_ENV_DIR,
		2581	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2582	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2583	0666;
		2584
		2585	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2586
		2587	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2588	$DB_ENV->set_lk_detect;
		2589	};
		2590
		2591	cf::cleanup "db_env_open(db): $@" if $@;
		2592	};
		2593	}
		2594	}
		2595
		2596	{
		2597	IO::AIO::min_parallel 8;
		2598
		2599	undef $Coro::AIO::WATCHER;
1281	IO::AIO::max_poll_time $TICK * 0.2;	2600	IO::AIO::max_poll_time $TICK * 0.1;
1282		2601	$AIO_POLL_WATCHER = Event->io (
1283	Event->io (fd => IO::AIO::poll_fileno,	2602	reentrant => 0,
		2603	fd => IO::AIO::poll_fileno,
1284	poll => 'r',	2604	poll => 'r',
1285	prio => 5,	2605	prio => 6,
1286	data => WF_AUTOCANCEL,	2606	data => WF_AUTOCANCEL,
1287	cb => \&IO::AIO::poll_cb);	2607	cb => \&IO::AIO::poll_cb,
		2608	);
		2609	}
		2610
		2611	$WRITE_RUNTIME_WATCHER = Event->timer (
		2612	reentrant => 0,
		2613	data => WF_AUTOCANCEL,
		2614	parked => 1,
		2615	after => 1,
		2616	interval => 10,
		2617	prio => 6, # keep it lowest so it acts like a watchdog
		2618	cb => sub {
		2619	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
		2620
		2621	Coro::async_pool {
		2622	write_runtime
		2623	or warn "ERROR: unable to write runtime file: $!";
		2624	};
		2625	},
		2626	);
		2627
		2628	END { cf::emergency_save }
1288		2629
1289	1	2630	1
1290		2631

Diff Legend

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