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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.98 by root, Fri Dec 22 16:34:00 2006 UTC vs.
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18
19	use IO::AIO;	20	use Coro::AIO;
		21	use Coro::Storable;
		22
		23	use BDB ();
		24	use Data::Dumper;
		25	use Digest::MD5;
		26	use Fcntl;
20	use YAML::Syck ();	27	use YAML::Syck ();
		28	use IO::AIO 2.32 ();
21	use Time::HiRes;	29	use Time::HiRes;
		30	use Compress::LZF;
22		31
		32	# configure various modules to our taste
		33	#
		34	$Storable::canonical = 1; # reduce rsync transfers
		35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		37
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	$Event::Eval = 1; # no idea why this is required, but it is
24		39
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	41	$YAML::Syck::ImplicitUnicode = 1;
27		42
28	$Coro::main->prio (Coro::PRIO_MIN);	43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		44
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		46
32	our %COMMAND = ();	47	our %COMMAND = ();
33	our %COMMAND_TIME = ();	48	our %COMMAND_TIME = ();
		49
		50	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	51	our %EXTCMD = ();
		52	our %EXT_CORO = (); # coroutines bound to extensions
		53	our %EXT_MAP = (); # pluggable maps
35		54
36	_init_vars;	55	our $RELOAD; # number of reloads so far
37
38	our @EVENT;	56	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	57	our $LIBDIR = datadir . "/ext";
40		58
41	our $TICK = MAX_TIME * 1e-6;	59	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	60	our $TICK_WATCHER;
		61	our $AIO_POLL_WATCHER;
		62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	63	our $NEXT_TICK;
		64	our $NOW;
		65	our $USE_FSYNC = 1; # use fsync to write maps - default off
		66
		67	our $BDB_POLL_WATCHER;
		68	our $DB_ENV;
44		69
45	our %CFG;	70	our %CFG;
46		71
47	our $UPTIME; $UPTIME ||= time;	72	our $UPTIME; $UPTIME ||= time;
		73	our $RUNTIME;
		74
		75	our %PLAYER; # all users
		76	our %MAP; # all maps
		77	our $LINK_MAP; # the special {link} map, which is always available
		78	our $RANDOM_MAPS = cf::localdir . "/random";
		79	our $BDB_ENV_DIR = cf::localdir . "/db";
		80
		81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		83
		84	# used to convert map paths into valid unix filenames by replacing / by ∕
		85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		86
		87	binmode STDOUT;
		88	binmode STDERR;
		89
		90	# read virtual server time, if available
		91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		92	open my $fh, "<", cf::localdir . "/runtime"
		93	or die "unable to read runtime file: $!";
		94	$RUNTIME = <$fh> + 0.;
		95	}
		96
		97	mkdir cf::localdir;
		98	mkdir cf::localdir . "/" . cf::playerdir;
		99	mkdir cf::localdir . "/" . cf::tmpdir;
		100	mkdir cf::localdir . "/" . cf::uniquedir;
		101	mkdir $RANDOM_MAPS;
		102	mkdir $BDB_ENV_DIR;
		103
		104	our $EMERGENCY_POSITION;
		105
		106	sub cf::map::normalise;
48		107
49	#############################################################################	108	#############################################################################
50		109
51	=head2 GLOBAL VARIABLES	110	=head2 GLOBAL VARIABLES
52		111
53	=over 4	112	=over 4
54		113
55	=item $cf::UPTIME	114	=item $cf::UPTIME
56		115
57	The timestamp of the server start (so not actually an uptime).	116	The timestamp of the server start (so not actually an uptime).
		117
		118	=item $cf::RUNTIME
		119
		120	The time this server has run, starts at 0 and is increased by $cf::TICK on
		121	every server tick.
58		122
59	=item $cf::LIBDIR	123	=item $cf::LIBDIR
60		124
61	The perl library directory, where extensions and cf-specific modules can	125	The perl library directory, where extensions and cf-specific modules can
62	be found. It will be added to C<@INC> automatically.	126	be found. It will be added to C<@INC> automatically.
63		127
		128	=item $cf::NOW
		129
		130	The time of the last (current) server tick.
		131
64	=item $cf::TICK	132	=item $cf::TICK
65		133
66	The interval between server ticks, in seconds.	134	The interval between server ticks, in seconds.
67		135
68	=item %cf::CFG	136	=item %cf::CFG
69		137
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	138	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	139	from wherever your confdir points to.
		140
		141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		142
		143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		144	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		145	processing has been done. Call C<< ->wait >> on them to maximise the
		146	window of cpu time available, or simply to synchronise to the server tick.
72		147
73	=back	148	=back
74		149
75	=cut	150	=cut
76		151
77	BEGIN {	152	BEGIN {
78	*CORE::GLOBAL::warn = sub {	153	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	154	my $msg = join "", @_;
		155	utf8::encode $msg;
		156
80	$msg .= "\n"	157	$msg .= "\n"
81	unless $msg =~ /\n$/;	158	unless $msg =~ /\n$/;
82		159
83	print STDERR "cfperl: $msg";
84	LOG llevError, "cfperl: $msg";	160	LOG llevError, $msg;
85	};	161	};
86	}	162	}
87		163
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94		170
95	# we bless all objects into (empty) derived classes to force a method lookup	171	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	172	# within the Safe compartment.
97	for my $pkg (qw(	173	for my $pkg (qw(
98	cf::global	174	cf::global cf::attachable
99	cf::object cf::object::player	175	cf::object cf::object::player
100	cf::client cf::player	176	cf::client cf::player
101	cf::arch cf::living	177	cf::arch cf::living
102	cf::map cf::party cf::region	178	cf::map cf::party cf::region
103	)) {	179	)) {
…		…
107		183
108	$Event::DIED = sub {	184	$Event::DIED = sub {
109	warn "error in event callback: @_";	185	warn "error in event callback: @_";
110	};	186	};
111		187
112	my %ext_pkg;
113	my @exts;
114	my @hook;
115
116	=head2 UTILITY FUNCTIONS	188	=head2 UTILITY FUNCTIONS
117		189
118	=over 4	190	=over 4
119		191
120	=cut	192	=item dumpval $ref
121		193
		194	=cut
		195
		196	sub dumpval {
		197	eval {
		198	local $SIG{__DIE__};
		199	my $d;
		200	if (1) {
		201	$d = new Data::Dumper([$_[0]], ["*var"]);
		202	$d->Terse(1);
		203	$d->Indent(2);
		204	$d->Quotekeys(0);
		205	$d->Useqq(1);
		206	#$d->Bless(...);
		207	$d->Seen($_[1]) if @_ > 1;
		208	$d = $d->Dump();
		209	}
		210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		211	$d
		212	} || "[unable to dump $_[0]: '$@']";
		213	}
		214
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
123		216
124	=item $ref = cf::from_json $json	217	=item $ref = cf::from_json $json
125		218
126	Converts a JSON string into the corresponding perl data structure.	219	Converts a JSON string into the corresponding perl data structure.
127		220
128	=cut
129
130	sub from_json($) {
131	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132	JSON::Syck::Load $_[0]
133	}
134
135	=item $json = cf::to_json $ref	221	=item $json = cf::to_json $ref
136		222
137	Converts a perl data structure into its JSON representation.	223	Converts a perl data structure into its JSON representation.
138		224
139	=cut	225	=item cf::lock_wait $string
140		226
141	sub to_json($) {	227	Wait until the given lock is available. See cf::lock_acquire.
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	228
143	JSON::Syck::Dump $_[0]	229	=item my $lock = cf::lock_acquire $string
		230
		231	Wait until the given lock is available and then acquires it and returns
		232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		233	for example when the coroutine gets canceled), the lock is automatically
		234	returned.
		235
		236	Lock names should begin with a unique identifier (for example, cf::map::find
		237	uses map_find and cf::map::load uses map_load).
		238
		239	=cut
		240
		241	our %LOCK;
		242
		243	sub lock_wait($) {
		244	my ($key) = @_;
		245
		246	# wait for lock, if any
		247	while ($LOCK{$key}) {
		248	push @{ $LOCK{$key} }, $Coro::current;
		249	Coro::schedule;
		250	}
		251	}
		252
		253	sub lock_acquire($) {
		254	my ($key) = @_;
		255
		256	# wait, to be sure we are not locked
		257	lock_wait $key;
		258
		259	$LOCK{$key} = [];
		260
		261	Coro::guard {
		262	# wake up all waiters, to be on the safe side
		263	$_->ready for @{ delete $LOCK{$key} };
		264	}
		265	}
		266
		267	sub freeze_mainloop {
		268	return unless $TICK_WATCHER->is_active;
		269
		270	my $guard = Coro::guard {
		271	$TICK_WATCHER->start;
		272	};
		273	$TICK_WATCHER->stop;
		274	$guard
		275	}
		276
		277	=item cf::async { BLOCK }
		278
		279	Currently the same as Coro::async_pool, meaning you cannot use
		280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		281	thing you are allowed to do is call C<prio> on it.
		282
		283	=cut
		284
		285	BEGIN { *async = \&Coro::async_pool }
		286
		287	=item cf::sync_job { BLOCK }
		288
		289	The design of crossfire+ requires that the main coro ($Coro::main) is
		290	always able to handle events or runnable, as crossfire+ is only partly
		291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		292
		293	If it must be done, put the blocking parts into C<sync_job>. This will run
		294	the given BLOCK in another coroutine while waiting for the result. The
		295	server will be frozen during this time, so the block should either finish
		296	fast or be very important.
		297
		298	=cut
		299
		300	sub sync_job(&) {
		301	my ($job) = @_;
		302
		303	if ($Coro::current == $Coro::main) {
		304	# this is the main coro, too bad, we have to block
		305	# till the operation succeeds, freezing the server :/
		306
		307	# TODO: use suspend/resume instead
		308	# (but this is cancel-safe)
		309	my $freeze_guard = freeze_mainloop;
		310
		311	my $busy = 1;
		312	my @res;
		313
		314	(async {
		315	@res = eval { $job->() };
		316	warn $@ if $@;
		317	undef $busy;
		318	})->prio (Coro::PRIO_MAX);
		319
		320	while ($busy) {
		321	Coro::cede or Event::one_event;
		322	}
		323
		324	wantarray ? @res : $res[0]
		325	} else {
		326	# we are in another coroutine, how wonderful, everything just works
		327
		328	$job->()
		329	}
		330	}
		331
		332	=item $coro = cf::async_ext { BLOCK }
		333
		334	Like async, but this coro is automatically being canceled when the
		335	extension calling this is being unloaded.
		336
		337	=cut
		338
		339	sub async_ext(&) {
		340	my $cb = shift;
		341
		342	my $coro = &Coro::async ($cb);
		343
		344	$coro->on_destroy (sub {
		345	delete $EXT_CORO{$coro+0};
		346	});
		347	$EXT_CORO{$coro+0} = $coro;
		348
		349	$coro
		350	}
		351
		352	sub write_runtime {
		353	my $guard = cf::lock_acquire "write_runtime";
		354
		355	my $runtime = cf::localdir . "/runtime";
		356
		357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		358	or return;
		359
		360	my $value = $cf::RUNTIME + 90 + 10;
		361	# 10 is the runtime save interval, for a monotonic clock
		362	# 60 allows for the watchdog to kill the server.
		363
		364	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		365	and return;
		366
		367	# always fsync - this file is important
		368	aio_fsync $fh
		369	and return;
		370
		371	close $fh
		372	or return;
		373
		374	aio_rename "$runtime~", $runtime
		375	and return;
		376
		377	1
		378	}
		379
		380	=item cf::datalog type => key => value, ...
		381
		382	Log a datalog packet of the given type with the given key-value pairs.
		383
		384	=cut
		385
		386	sub datalog($@) {
		387	my ($type, %kv) = @_;
		388	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
144	}	389	}
145		390
146	=back	391	=back
147		392
148	=cut	393	=cut
…		…
269	exception.	514	exception.
270		515
271	=cut	516	=cut
272		517
273	# the following variables are defined in .xs and must not be re-created	518	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	519	our @CB_GLOBAL = (); # registry for all global events
		520	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	521	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	522	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	523	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	524	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	525	our @CB_MAP = ();
280		526
281	my %attachment;	527	my %attachment;
		528
		529	sub cf::attachable::thawer_merge {
		530	# simply override everything except _meta
		531	local $_[0]{_meta};
		532	%{$_[0]} = %{$_[1]};
		533	}
282		534
283	sub _attach_cb($$$$) {	535	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	536	my ($registry, $event, $prio, $cb) = @_;
285		537
286	use sort 'stable';	538	use sort 'stable';
…		…
289		541
290	@{$registry->[$event]} = sort	542	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	543	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	544	@{$registry->[$event] || []}, $cb;
293	}	545	}
		546
		547	# hack
		548	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		549
295	# attach handles attaching event callbacks	550	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	551	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	552	# registry (== where the callback attaches to).
298	sub _attach {	553	sub _attach {
…		…
300		555
301	my $object_type;	556	my $object_type;
302	my $prio = 0;	557	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	558	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		559
		560	#TODO: get rid of this hack
		561	if ($attachable_klass{$klass}) {
		562	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		563	}
		564
305	while (@arg) {	565	while (@arg) {
306	my $type = shift @arg;	566	my $type = shift @arg;
307		567
308	if ($type eq "prio") {	568	if ($type eq "prio") {
309	$prio = shift @arg;	569	$prio = shift @arg;
…		…
384	my ($obj, $name) = @_;	644	my ($obj, $name) = @_;
385		645
386	exists $obj->{_attachment}{$name}	646	exists $obj->{_attachment}{$name}
387	}	647	}
388		648
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	649	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	650	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	651	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	652	(\\\@CB_$klass, KLASS_$klass)
393	}	653	}
394		654
…		…
447	=cut	707	=cut
448		708
449	#############################################################################	709	#############################################################################
450	# object support	710	# object support
451		711
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 {	712	sub reattach {
		713	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	714	my ($obj) = @_;
		715
		716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		717
467	my $registry = $obj->registry;	718	my $registry = $obj->registry;
468		719
469	@$registry = ();	720	@$registry = ();
470		721
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	732	}
482	}	733	}
483	}	734	}
484		735
485	sub object_freezer_save {	736	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	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
545	on_clone => sub {	750	on_clone => sub {
546	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
547		752
548	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
549		754
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	758	if exists $src->{_attachment};
554	},	759	},
555	);	760	);
556		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh if $cf::USE_FSYNC;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh if $cf::USE_FSYNC;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	warn sprintf "loading %s (%d)\n",
		823	$filename, length $data, scalar @{$av || []};#d#
		824	return ($data, $av);
		825	}
		826
557	#############################################################################	827	#############################################################################
558	# command handling &c	828	# command handling &c
559		829
560	=item cf::register_command $name => \&callback($ob,$args);	830	=item cf::register_command $name => \&callback($ob,$args);
561		831
…		…
583	=cut	853	=cut
584		854
585	sub register_extcmd {	855	sub register_extcmd {
586	my ($name, $cb) = @_;	856	my ($name, $cb) = @_;
587		857
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	858	$EXTCMD{$name} = $cb;
592	}	859	}
593		860
594	cf::player->attach (	861	cf::player->attach (
595	on_command => sub {	862	on_command => sub {
596	my ($pl, $name, $params) = @_;	863	my ($pl, $name, $params) = @_;
…		…
609		876
610	my $msg = eval { from_json $buf };	877	my $msg = eval { from_json $buf };
611		878
612	if (ref $msg) {	879	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	881	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	882	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	883	}
617	}	884	}
618	} else {	885	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		888
622	cf::override;	889	cf::override;
623	},	890	},
624	);	891	);
625		892
626	sub register {
627	my ($base, $pkg) = @_;
628
629	#TODO
630	}
631
632	sub load_extension {	893	sub load_extension {
633	my ($path) = @_;	894	my ($path) = @_;
634		895
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
636	my $base = $1;	897	my $base = $1;
637	my $pkg = $1;	898	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;	899	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";	900	$pkg = "ext::$pkg";
640		901
641	warn "loading '$path' into '$pkg'\n";	902	warn "... loading '$path' into '$pkg'\n";
642		903
643	open my $fh, "<:utf8", $path	904	open my $fh, "<:utf8", $path
644	or die "$path: $!";	905	or die "$path: $!";
645		906
646	my $source =	907	my $source =
647	"package $pkg; use strict; use utf8;\n"	908	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"	909	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })	910	. (do { local $/; <$fh> })
650	. "\n};\n1";	911	. "\n};\n1";
651		912
652	eval $source	913	unless (eval $source) {
653	or die $@ ? "$path: $@\n"	914	my $msg = $@ ? "$path: $@\n"
654	: "extension disabled.\n";	915	: "extension disabled.\n";
655		916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
656	push @exts, $pkg;	917	warn $@;
657	$ext_pkg{$base} = $pkg;	918	warn "mandatory extension failed to load, exiting.\n";
658		919	exit 1;
659	# no strict 'refs';	920	}
660	# @{"$pkg\::ISA"} = ext::;	921	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	# }	922	}
675		923
676	# remove commands	924	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	}	925	}
701		926
702	sub load_extensions {	927	sub load_extensions {
703	for my $ext (<$LIBDIR/*.ext>) {	928	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	929	next unless -r $ext;
…		…
708	} or warn "$ext not loaded: $@";	933	} or warn "$ext not loaded: $@";
709	}	934	}
710	}	935	}
711		936
712	#############################################################################	937	#############################################################################
713	# load/save/clean perl data associated with a map
714		938
715	*cf::mapsupport::on_clean = sub {	939	=head2 CORE EXTENSIONS
		940
		941	Functions and methods that extend core crossfire objects.
		942
		943	=cut
		944
		945	package cf::player;
		946
		947	use Coro::AIO;
		948
		949	=head3 cf::player
		950
		951	=over 4
		952
		953	=item cf::player::find $login
		954
		955	Returns the given player object, loading it if necessary (might block).
		956
		957	=cut
		958
		959	sub playerdir($) {
		960	cf::localdir
		961	. "/"
		962	. cf::playerdir
		963	. "/"
		964	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		965	}
		966
		967	sub path($) {
		968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		969
		970	(playerdir $login) . "/playerdata"
		971	}
		972
		973	sub find_active($) {
		974	$cf::PLAYER{$_[0]}
		975	and $cf::PLAYER{$_[0]}->active
		976	and $cf::PLAYER{$_[0]}
		977	}
		978
		979	sub exists($) {
		980	my ($login) = @_;
		981
		982	$cf::PLAYER{$login}
		983	or cf::sync_job { !aio_stat path $login }
		984	}
		985
		986	sub find($) {
		987	return $cf::PLAYER{$_[0]} || do {
		988	my $login = $_[0];
		989
		990	my $guard = cf::lock_acquire "user_find:$login";
		991
		992	$cf::PLAYER{$_[0]} || do {
		993	# rename old playerfiles to new ones
		994	#TODO: remove when no longer required
		995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		997	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		998	aio_unlink +(playerdir $login) . "/$login.pl";
		999
		1000	my $pl = load_pl path $login
		1001	or return;
		1002	$cf::PLAYER{$login} = $pl
		1003	}
		1004	}
		1005	}
		1006
		1007	sub save($) {
		1008	my ($pl) = @_;
		1009
		1010	return if $pl->{deny_save};
		1011
		1012	my $path = path $pl;
		1013	my $guard = cf::lock_acquire "user_save:$path";
		1014
		1015	return if $pl->{deny_save};
		1016
		1017	aio_mkdir playerdir $pl, 0770;
		1018	$pl->{last_save} = $cf::RUNTIME;
		1019
		1020	$pl->save_pl ($path);
		1021	Coro::cede;
		1022	}
		1023
		1024	sub new($) {
		1025	my ($login) = @_;
		1026
		1027	my $self = create;
		1028
		1029	$self->ob->name ($login);
		1030	$self->{deny_save} = 1;
		1031
		1032	$cf::PLAYER{$login} = $self;
		1033
		1034	$self
		1035	}
		1036
		1037	=item $pl->quit_character
		1038
		1039	Nukes the player without looking back. If logged in, the connection will
		1040	be destroyed. May block for a long time.
		1041
		1042	=cut
		1043
		1044	sub quit_character {
		1045	my ($pl) = @_;
		1046
		1047	my $name = $pl->ob->name;
		1048
		1049	$pl->{deny_save} = 1;
		1050	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1051
		1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1053	$pl->deactivate;
		1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1055	$pl->ns->destroy if $pl->ns;
		1056
		1057	my $path = playerdir $pl;
		1058	my $temp = "$path~$cf::RUNTIME~deleting~";
		1059	aio_rename $path, $temp;
		1060	delete $cf::PLAYER{$pl->ob->name};
		1061	$pl->destroy;
		1062
		1063	my $prefix = qr<^~\Q$name\E/>;
		1064
		1065	# nuke player maps
		1066	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1067
		1068	IO::AIO::aio_rmtree $temp;
		1069	}
		1070
		1071	=item $pl->kick
		1072
		1073	Kicks a player out of the game. This destroys the connection.
		1074
		1075	=cut
		1076
		1077	sub kick {
		1078	my ($pl, $kicker) = @_;
		1079
		1080	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1081	$pl->killer ("kicked");
		1082	$pl->ns->destroy;
		1083	}
		1084
		1085	=item cf::player::list_logins
		1086
		1087	Returns am arrayref of all valid playernames in the system, can take a
		1088	while and may block, so not sync_job-capable, ever.
		1089
		1090	=cut
		1091
		1092	sub list_logins {
		1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1094	or return [];
		1095
		1096	my @logins;
		1097
		1098	for my $login (@$dirs) {
		1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1100	aio_read $fh, 0, 512, my $buf, 0 or next;
		1101	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1102
		1103	utf8::decode $login;
		1104	push @logins, $login;
		1105	}
		1106
		1107	\@logins
		1108	}
		1109
		1110	=item $player->maps
		1111
		1112	Returns an arrayref of map paths that are private for this
		1113	player. May block.
		1114
		1115	=cut
		1116
		1117	sub maps($) {
		1118	my ($pl) = @_;
		1119
		1120	$pl = ref $pl ? $pl->ob->name : $pl;
		1121
		1122	my $files = aio_readdir playerdir $pl
		1123	or return;
		1124
		1125	my @paths;
		1126
		1127	for (@$files) {
		1128	utf8::decode $_;
		1129	next if /\.(?:pl|pst)$/;
		1130	next unless /^$PATH_SEP/o;
		1131
		1132	push @paths, cf::map::normalise "~$pl/$_";
		1133	}
		1134
		1135	\@paths
		1136	}
		1137
		1138	=item $player->ext_reply ($msgid, %msg)
		1139
		1140	Sends an ext reply to the player.
		1141
		1142	=cut
		1143
		1144	sub ext_reply($$%) {
		1145	my ($self, $id, %msg) = @_;
		1146
		1147	$msg{msgid} = $id;
		1148
		1149	$self->send ("ext " . cf::to_json \%msg);
		1150	}
		1151
		1152	=item $player->ext_event ($type, %msg)
		1153
		1154	Sends an ext event to the client.
		1155
		1156	=cut
		1157
		1158	sub ext_event($$%) {
		1159	my ($self, $type, %msg) = @_;
		1160
		1161	$self->ns->ext_event ($type, %msg);
		1162	}
		1163
		1164	package cf;
		1165
		1166	=back
		1167
		1168
		1169	=head3 cf::map
		1170
		1171	=over 4
		1172
		1173	=cut
		1174
		1175	package cf::map;
		1176
		1177	use Fcntl;
		1178	use Coro::AIO;
		1179
		1180	use overload
		1181	'""' => \&as_string,
		1182	fallback => 1;
		1183
		1184	our $MAX_RESET = 3600;
		1185	our $DEFAULT_RESET = 3000;
		1186
		1187	sub generate_random_map {
		1188	my ($self, $rmp) = @_;
		1189	# mit "rum" bekleckern, nicht
		1190	$self->_create_random_map (
		1191	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1192	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1193	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1194	$rmp->{exit_on_final_map},
		1195	$rmp->{xsize}, $rmp->{ysize},
		1196	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1197	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1198	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1199	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1200	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1201	(cf::region::find $rmp->{region}), $rmp->{custom}
		1202	)
		1203	}
		1204
		1205	=item cf::map->register ($regex, $prio)
		1206
		1207	Register a handler for the map path matching the given regex at the
		1208	givne priority (higher is better, built-in handlers have priority 0, the
		1209	default).
		1210
		1211	=cut
		1212
		1213	sub register {
		1214	my (undef, $regex, $prio) = @_;
		1215	my $pkg = caller;
		1216
		1217	no strict;
		1218	push @{"$pkg\::ISA"}, __PACKAGE__;
		1219
		1220	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1221	}
		1222
		1223	# also paths starting with '/'
		1224	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1225
		1226	sub thawer_merge {
		1227	my ($self, $merge) = @_;
		1228
		1229	# we have to keep some variables in memory intact
		1230	local $self->{path};
		1231	local $self->{load_path};
		1232	local $self->{deny_save};
		1233	local $self->{deny_reset};
		1234
		1235	$self->SUPER::thawer_merge ($merge);
		1236	}
		1237
		1238	sub normalise {
		1239	my ($path, $base) = @_;
		1240
		1241	$path = "$path"; # make sure its a string
		1242
		1243	$path =~ s/\.map$//;
		1244
		1245	# map plan:
		1246	#
		1247	# /! non-realised random map exit (special hack!)
		1248	# {... are special paths that are not being touched
		1249	# ?xxx/... are special absolute paths
		1250	# ?random/... random maps
		1251	# /... normal maps
		1252	# ~user/... per-player map of a specific user
		1253
		1254	$path =~ s/$PATH_SEP/\//go;
		1255
		1256	# treat it as relative path if it starts with
		1257	# something that looks reasonable
		1258	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1259	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1260
		1261	$base =~ s{[^/]+/?$}{};
		1262	$path = "$base/$path";
		1263	}
		1264
		1265	for ($path) {
		1266	redo if s{//}{/};
		1267	redo if s{/\.?/}{/};
		1268	redo if s{/[^/]+/\.\./}{/};
		1269	}
		1270
		1271	$path
		1272	}
		1273
		1274	sub new_from_path {
		1275	my (undef, $path, $base) = @_;
		1276
		1277	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1278
		1279	$path = normalise $path, $base;
		1280
		1281	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1282	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1283	my $self = bless cf::map::new, $pkg;
		1284	$self->{path} = $path; $self->path ($path);
		1285	$self->init; # pass $1 etc.
		1286	return $self;
		1287	}
		1288	}
		1289
		1290	Carp::carp "unable to resolve path '$path' (base '$base').";
		1291	()
		1292	}
		1293
		1294	sub init {
		1295	my ($self) = @_;
		1296
		1297	$self
		1298	}
		1299
		1300	sub as_string {
		1301	my ($self) = @_;
		1302
		1303	"$self->{path}"
		1304	}
		1305
		1306	# the displayed name, this is a one way mapping
		1307	sub visible_name {
		1308	&as_string
		1309	}
		1310
		1311	# the original (read-only) location
		1312	sub load_path {
		1313	my ($self) = @_;
		1314
		1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1316	}
		1317
		1318	# the temporary/swap location
		1319	sub save_path {
		1320	my ($self) = @_;
		1321
		1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1324	}
		1325
		1326	# the unique path, undef == no special unique path
		1327	sub uniq_path {
		1328	my ($self) = @_;
		1329
		1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1332	}
		1333
		1334	# and all this just because we cannot iterate over
		1335	# all maps in C++...
		1336	sub change_all_map_light {
		1337	my ($change) = @_;
		1338
		1339	$_->change_map_light ($change)
		1340	for grep $_->outdoor, values %cf::MAP;
		1341	}
		1342
		1343	sub unlink_save {
		1344	my ($self) = @_;
		1345
		1346	utf8::encode (my $save = $self->save_path);
		1347	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1348	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1349	}
		1350
		1351	sub load_header_from($) {
		1352	my ($self, $path) = @_;
		1353
		1354	utf8::encode $path;
		1355	#aio_open $path, O_RDONLY, 0
		1356	# or return;
		1357
		1358	$self->_load_header ($path)
		1359	or return;
		1360
		1361	$self->{load_path} = $path;
		1362
		1363	1
		1364	}
		1365
		1366	sub load_header_orig {
		1367	my ($self) = @_;
		1368
		1369	$self->load_header_from ($self->load_path)
		1370	}
		1371
		1372	sub load_header_temp {
		1373	my ($self) = @_;
		1374
		1375	$self->load_header_from ($self->save_path)
		1376	}
		1377
		1378	sub prepare_temp {
		1379	my ($self) = @_;
		1380
		1381	$self->last_access ((delete $self->{last_access})
		1382	|| $cf::RUNTIME); #d#
		1383	# safety
		1384	$self->{instantiate_time} = $cf::RUNTIME
		1385	if $self->{instantiate_time} > $cf::RUNTIME;
		1386	}
		1387
		1388	sub prepare_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->{load_original} = 1;
		1392	$self->{instantiate_time} = $cf::RUNTIME;
		1393	$self->last_access ($cf::RUNTIME);
		1394	$self->instantiate;
		1395	}
		1396
		1397	sub load_header {
		1398	my ($self) = @_;
		1399
		1400	if ($self->load_header_temp) {
		1401	$self->prepare_temp;
		1402	} else {
		1403	$self->load_header_orig
		1404	or return;
		1405	$self->prepare_orig;
		1406	}
		1407
		1408	1
		1409	}
		1410
		1411	sub find;
		1412	sub find {
		1413	my ($path, $origin) = @_;
		1414
		1415	$path = normalise $path, $origin && $origin->path;
		1416
		1417	cf::lock_wait "map_find:$path";
		1418
		1419	$cf::MAP{$path} || do {
		1420	my $guard = cf::lock_acquire "map_find:$path";
		1421	my $map = new_from_path cf::map $path
		1422	or return;
		1423
		1424	$map->{last_save} = $cf::RUNTIME;
		1425
		1426	$map->load_header
		1427	or return;
		1428
		1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1430	# doing this can freeze the server in a sync job, obviously
		1431	#$cf::WAIT_FOR_TICK->wait;
		1432	$map->reset;
		1433	undef $guard;
		1434	return find $path;
		1435	}
		1436
		1437	$cf::MAP{$path} = $map
		1438	}
		1439	}
		1440
		1441	sub pre_load { }
		1442	sub post_load { }
		1443
		1444	sub load {
		1445	my ($self) = @_;
		1446
		1447	local $self->{deny_reset} = 1; # loading can take a long time
		1448
		1449	my $path = $self->{path};
		1450	my $guard = cf::lock_acquire "map_load:$path";
		1451
		1452	return if $self->in_memory != cf::MAP_SWAPPED;
		1453
		1454	$self->in_memory (cf::MAP_LOADING);
		1455
		1456	$self->alloc;
		1457
		1458	$self->pre_load;
		1459
		1460	$self->_load_objects ($self->{load_path}, 1)
		1461	or return;
		1462
		1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1464	if delete $self->{load_original};
		1465
		1466	if (my $uniq = $self->uniq_path) {
		1467	utf8::encode $uniq;
		1468	if (aio_open $uniq, O_RDONLY, 0) {
		1469	$self->clear_unique_items;
		1470	$self->_load_objects ($uniq, 0);
		1471	}
		1472	}
		1473
		1474	Coro::cede;
		1475
		1476	# now do the right thing for maps
		1477	$self->link_multipart_objects;
		1478
		1479	unless ($self->{deny_activate}) {
		1480	$self->decay_objects;
		1481	$self->fix_auto_apply;
		1482	$self->update_buttons;
		1483	Coro::cede;
		1484	$self->set_darkness_map;
		1485	$self->difficulty ($self->estimate_difficulty)
		1486	unless $self->difficulty;
		1487	Coro::cede;
		1488	$self->activate;
		1489	}
		1490
		1491	$self->post_load;
		1492
		1493	$self->in_memory (cf::MAP_IN_MEMORY);
		1494	}
		1495
		1496	sub customise_for {
		1497	my ($self, $ob) = @_;
		1498
		1499	return find "~" . $ob->name . "/" . $self->{path}
		1500	if $self->per_player;
		1501
		1502	$self
		1503	}
		1504
		1505	# find and load all maps in the 3x3 area around a map
		1506	sub load_diag {
716	my ($map) = @_;	1507	my ($map) = @_;
717		1508
718	my $path = $map->tmpname;	1509	my @diag; # diagonal neighbours
719	defined $path or return;
720		1510
721	unlink "$path.pst";	1511	for (0 .. 3) {
722	};	1512	my $neigh = $map->tile_path ($_)
		1513	or next;
		1514	$neigh = find $neigh, $map
		1515	or next;
		1516	$neigh->load;
723		1517
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1518	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1519	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1520	}
725		1521
726	#############################################################################	1522	for (@diag) {
727	# load/save perl data associated with player->ob objects	1523	my $neigh = find @$_
728		1524	or next;
729	sub all_objects(@) {	1525	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1526	}
731	}	1527	}
732		1528
733	# TODO: compatibility cruft, remove when no longer needed	1529	sub find_sync {
734	cf::player->attach (	1530	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1531
738	for my $o (all_objects $pl->ob) {	1532	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1533	}
740	$o->set_ob_key_value ("_perl_data");
741		1534
742	%$o = %{ Storable::thaw pack "H*", $value };	1535	sub do_load_sync {
		1536	my ($map) = @_;
		1537
		1538	cf::sync_job { $map->load };
		1539	}
		1540
		1541	our %MAP_PREFETCH;
		1542	our $MAP_PREFETCHER = undef;
		1543
		1544	sub find_async {
		1545	my ($path, $origin) = @_;
		1546
		1547	$path = normalise $path, $origin && $origin->{path};
		1548
		1549	if (my $map = $cf::MAP{$path}) {
		1550	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1551	}
		1552
		1553	undef $MAP_PREFETCH{$path};
		1554	$MAP_PREFETCHER ||= cf::async {
		1555	while (%MAP_PREFETCH) {
		1556	for my $path (keys %MAP_PREFETCH) {
		1557	my $map = find $path
		1558	or next;
		1559	$map->load;
		1560
		1561	delete $MAP_PREFETCH{$path};
743	}	1562	}
744	}	1563	}
		1564	undef $MAP_PREFETCHER;
		1565	};
		1566	$MAP_PREFETCHER->prio (6);
		1567
		1568	()
		1569	}
		1570
		1571	sub save {
		1572	my ($self) = @_;
		1573
		1574	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1575
		1576	$self->{last_save} = $cf::RUNTIME;
		1577
		1578	return unless $self->dirty;
		1579
		1580	my $save = $self->save_path; utf8::encode $save;
		1581	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1582
		1583	$self->{load_path} = $save;
		1584
		1585	return if $self->{deny_save};
		1586
		1587	local $self->{last_access} = $self->last_access;#d#
		1588
		1589	cf::async {
		1590	$_->contr->save for $self->players;
		1591	};
		1592
		1593	if ($uniq) {
		1594	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1595	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1596	} else {
		1597	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1598	}
746	);	1599	}
747		1600
748	#############################################################################	1601	sub swap_out {
		1602	my ($self) = @_;
749		1603
750	=head2 CORE EXTENSIONS	1604	# save first because save cedes
		1605	$self->save;
751		1606
752	Functions and methods that extend core crossfire objects.	1607	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1608
754	=head3 cf::player	1609	return if $self->players;
		1610	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1611	return if $self->{deny_save};
		1612
		1613	$self->clear;
		1614	$self->in_memory (cf::MAP_SWAPPED);
		1615	}
		1616
		1617	sub reset_at {
		1618	my ($self) = @_;
		1619
		1620	# TODO: safety, remove and allow resettable per-player maps
		1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1622	return 1e99 if $self->{deny_reset};
		1623
		1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1626
		1627	$time + $to
		1628	}
		1629
		1630	sub should_reset {
		1631	my ($self) = @_;
		1632
		1633	$self->reset_at <= $cf::RUNTIME
		1634	}
		1635
		1636	sub reset {
		1637	my ($self) = @_;
		1638
		1639	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1640
		1641	return if $self->players;
		1642	return if $self->isa ("ext::map_per_player");#d#
		1643
		1644	warn "resetting map ", $self->path;#d#
		1645
		1646	$self->in_memory (cf::MAP_SWAPPED);
		1647
		1648	# need to save uniques path
		1649	unless ($self->{deny_save}) {
		1650	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1651
		1652	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1653	if $uniq;
		1654	}
		1655
		1656	delete $cf::MAP{$self->path};
		1657
		1658	$self->clear;
		1659
		1660	$_->clear_links_to ($self) for values %cf::MAP;
		1661
		1662	$self->unlink_save;
		1663	$self->destroy;
		1664	}
		1665
		1666	my $nuke_counter = "aaaa";
		1667
		1668	sub nuke {
		1669	my ($self) = @_;
		1670
		1671	delete $cf::MAP{$self->path};
		1672
		1673	$self->unlink_save;
		1674
		1675	bless $self, "cf::map";
		1676	delete $self->{deny_reset};
		1677	$self->{deny_save} = 1;
		1678	$self->reset_timeout (1);
		1679	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1680
		1681	$cf::MAP{$self->path} = $self;
		1682
		1683	$self->reset; # polite request, might not happen
		1684	}
		1685
		1686	=item cf::map::unique_maps
		1687
		1688	Returns an arrayref of paths of all shared maps that have
		1689	instantiated unique items. May block.
		1690
		1691	=cut
		1692
		1693	sub unique_maps() {
		1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1695	or return;
		1696
		1697	my @paths;
		1698
		1699	for (@$files) {
		1700	utf8::decode $_;
		1701	next if /\.pst$/;
		1702	next unless /^$PATH_SEP/o;
		1703
		1704	push @paths, cf::map::normalise $_;
		1705	}
		1706
		1707	\@paths
		1708	}
		1709
		1710	package cf;
		1711
		1712	=back
		1713
		1714	=head3 cf::object
		1715
		1716	=cut
		1717
		1718	package cf::object;
755		1719
756	=over 4	1720	=over 4
757		1721
758	=item cf::player::exists $login	1722	=item $ob->inv_recursive
759		1723
760	Returns true when the given account exists.	1724	Returns the inventory of the object _and_ their inventories, recursively.
761		1725
762	=cut	1726	=cut
763		1727
764	sub cf::player::exists($) {	1728	sub inv_recursive_;
765	cf::player::find $_[0]	1729	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1730	map { $_, inv_recursive_ $_->inv } @_
767	}	1731	}
768		1732
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1733	sub inv_recursive {
770		1734	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	}	1735	}
		1736
		1737	package cf;
782		1738
783	=back	1739	=back
784		1740
785	=head3 cf::object::player	1741	=head3 cf::object::player
786		1742
…		…
824	(ref $cf::CFG{"may_$access"}	1780	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1781	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1782	: $cf::CFG{"may_$access"})
827	}	1783	}
828		1784
		1785	=item $player_object->enter_link
		1786
		1787	Freezes the player and moves him/her to a special map (C<{link}>).
		1788
		1789	The player should be reasonably safe there for short amounts of time. You
		1790	I<MUST> call C<leave_link> as soon as possible, though.
		1791
		1792	Will never block.
		1793
		1794	=item $player_object->leave_link ($map, $x, $y)
		1795
		1796	Moves the player out of the special C<{link}> map onto the specified
		1797	map. If the map is not valid (or omitted), the player will be moved back
		1798	to the location he/she was before the call to C<enter_link>, or, if that
		1799	fails, to the emergency map position.
		1800
		1801	Might block.
		1802
		1803	=cut
		1804
		1805	sub link_map {
		1806	unless ($LINK_MAP) {
		1807	$LINK_MAP = cf::map::find "{link}"
		1808	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1809	$LINK_MAP->load;
		1810	}
		1811
		1812	$LINK_MAP
		1813	}
		1814
		1815	sub cf::object::player::enter_link {
		1816	my ($self) = @_;
		1817
		1818	$self->deactivate_recursive;
		1819
		1820	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1821
		1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1823	if $self->map;
		1824
		1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1826	}
		1827
		1828	sub cf::object::player::leave_link {
		1829	my ($self, $map, $x, $y) = @_;
		1830
		1831	my $link_pos = delete $self->{_link_pos};
		1832
		1833	unless ($map) {
		1834	# restore original map position
		1835	($map, $x, $y) = @{ $link_pos || [] };
		1836	$map = cf::map::find $map;
		1837
		1838	unless ($map) {
		1839	($map, $x, $y) = @$EMERGENCY_POSITION;
		1840	$map = cf::map::find $map
		1841	or die "FATAL: cannot load emergency map\n";
		1842	}
		1843	}
		1844
		1845	($x, $y) = (-1, -1)
		1846	unless (defined $x) && (defined $y);
		1847
		1848	# use -1 or undef as default coordinates, not 0, 0
		1849	($x, $y) = ($map->enter_x, $map->enter_y)
		1850	if $x <=0 && $y <= 0;
		1851
		1852	$map->load;
		1853	$map->load_diag;
		1854
		1855	return unless $self->contr->active;
		1856	$self->activate_recursive;
		1857
		1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1859	$self->enter_map ($map, $x, $y);
		1860	}
		1861
		1862	cf::player->attach (
		1863	on_logout => sub {
		1864	my ($pl) = @_;
		1865
		1866	# abort map switching before logout
		1867	if ($pl->ob->{_link_pos}) {
		1868	cf::sync_job {
		1869	$pl->ob->leave_link
		1870	};
		1871	}
		1872	},
		1873	on_login => sub {
		1874	my ($pl) = @_;
		1875
		1876	# try to abort aborted map switching on player login :)
		1877	# should happen only on crashes
		1878	if ($pl->ob->{_link_pos}) {
		1879	$pl->ob->enter_link;
		1880	(async {
		1881	$pl->ob->reply (undef,
		1882	"There was an internal problem at your last logout, "
		1883	. "the server will try to bring you to your intended destination in a second.",
		1884	cf::NDI_RED);
		1885	# we need this sleep as the login has a concurrent enter_exit running
		1886	# and this sleep increases chances of the player not ending up in scorn
		1887	Coro::Timer::sleep 1;
		1888	$pl->ob->leave_link;
		1889	})->prio (2);
		1890	}
		1891	},
		1892	);
		1893
		1894	=item $player_object->goto ($path, $x, $y)
		1895
		1896	=cut
		1897
		1898	sub cf::object::player::goto {
		1899	my ($self, $path, $x, $y) = @_;
		1900
		1901	$self->enter_link;
		1902
		1903	(async {
		1904	my $map = eval {
		1905	my $map = cf::map::find $path;
		1906	$map = $map->customise_for ($self) if $map;
		1907	$map
		1908	} or
		1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1910
		1911	$self->leave_link ($map, $x, $y);
		1912	})->prio (1);
		1913	}
		1914
		1915	=item $player_object->enter_exit ($exit_object)
		1916
		1917	=cut
		1918
		1919	sub parse_random_map_params {
		1920	my ($spec) = @_;
		1921
		1922	my $rmp = { # defaults
		1923	xsize => (cf::rndm 15, 40),
		1924	ysize => (cf::rndm 15, 40),
		1925	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1926	#layout => string,
		1927	};
		1928
		1929	for (split /\n/, $spec) {
		1930	my ($k, $v) = split /\s+/, $_, 2;
		1931
		1932	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1933	}
		1934
		1935	$rmp
		1936	}
		1937
		1938	sub prepare_random_map {
		1939	my ($exit) = @_;
		1940
		1941	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1942
		1943	# all this does is basically replace the /! path by
		1944	# a new random map path (?random/...) with a seed
		1945	# that depends on the exit object
		1946
		1947	my $rmp = parse_random_map_params $exit->msg;
		1948
		1949	if ($exit->map) {
		1950	$rmp->{region} = $exit->region->name;
		1951	$rmp->{origin_map} = $exit->map->path;
		1952	$rmp->{origin_x} = $exit->x;
		1953	$rmp->{origin_y} = $exit->y;
		1954	}
		1955
		1956	$rmp->{random_seed} ||= $exit->random_seed;
		1957
		1958	my $data = cf::to_json $rmp;
		1959	my $md5 = Digest::MD5::md5_hex $data;
		1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1961
		1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1963	aio_write $fh, 0, (length $data), $data, 0;
		1964	undef $fh;
		1965	aio_rename "$meta~", $meta;
		1966
		1967	$exit->slaying ("?random/$md5");
		1968	$exit->msg (undef);
		1969	}
		1970	}
		1971
		1972	sub cf::object::player::enter_exit {
		1973	my ($self, $exit) = @_;
		1974
		1975	return unless $self->type == cf::PLAYER;
		1976
		1977	if ($exit->slaying eq "/!") {
		1978	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1979	# the problem is that $exit might not survive long enough
		1980	# so it needs to be done right now, right here
		1981	cf::sync_job { prepare_random_map $exit };
		1982	}
		1983
		1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1985	my $hp = $exit->stats->hp;
		1986	my $sp = $exit->stats->sp;
		1987
		1988	$self->enter_link;
		1989
		1990	(async {
		1991	$self->deactivate_recursive; # just to be sure
		1992	unless (eval {
		1993	$self->goto ($slaying, $hp, $sp);
		1994
		1995	1;
		1996	}) {
		1997	$self->message ("Something went wrong deep within the crossfire server. "
		1998	. "I'll try to bring you back to the map you were before. "
		1999	. "Please report this to the dungeon master!",
		2000	cf::NDI_UNIQUE | cf::NDI_RED);
		2001
		2002	warn "ERROR in enter_exit: $@";
		2003	$self->leave_link;
		2004	}
		2005	})->prio (1);
		2006	}
		2007
829	=head3 cf::client	2008	=head3 cf::client
830		2009
831	=over 4	2010	=over 4
832		2011
833	=item $client->send_drawinfo ($text, $flags)	2012	=item $client->send_drawinfo ($text, $flags)
…		…
839		2018
840	sub cf::client::send_drawinfo {	2019	sub cf::client::send_drawinfo {
841	my ($self, $text, $flags) = @_;	2020	my ($self, $text, $flags) = @_;
842		2021
843	utf8::encode $text;	2022	utf8::encode $text;
844	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845	}	2024	}
846		2025
		2026	=item $client->ext_event ($type, %msg)
		2027
		2028	Sends an exti event to the client.
		2029
		2030	=cut
		2031
		2032	sub cf::client::ext_event($$%) {
		2033	my ($self, $type, %msg) = @_;
		2034
		2035	$msg{msgtype} = "event_$type";
		2036	$self->send_packet ("ext " . cf::to_json \%msg);
		2037	}
847		2038
848	=item $success = $client->query ($flags, "text", \&cb)	2039	=item $success = $client->query ($flags, "text", \&cb)
849		2040
850	Queues a query to the client, calling the given callback with	2041	Queues a query to the client, calling the given callback with
851	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
876	on_reply => sub {	2067	on_reply => sub {
877	my ($ns, $msg) = @_;	2068	my ($ns, $msg) = @_;
878		2069
879	# this weird shuffling is so that direct followup queries	2070	# this weird shuffling is so that direct followup queries
880	# get handled first	2071	# get handled first
881	my $queue = delete $ns->{query_queue};	2072	my $queue = delete $ns->{query_queue}
		2073	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2074
883	(shift @$queue)->[1]->($msg);	2075	(shift @$queue)->[1]->($msg);
		2076	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2077
885	push @{ $ns->{query_queue} }, @$queue;	2078	push @{ $ns->{query_queue} }, @$queue;
886		2079
887	if (@{ $ns->{query_queue} } == @$queue) {	2080	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2081	if (@$queue) {
…		…
892	}	2085	}
893	}	2086	}
894	},	2087	},
895	);	2088	);
896		2089
897	=item $client->coro (\&cb)	2090	=item $client->async (\&cb)
898		2091
899	Create a new coroutine, running the specified callback. The coroutine will	2092	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2093	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2094	or loss of connection).
902		2095
903	=cut	2096	=cut
904		2097
905	sub cf::client::coro {	2098	sub cf::client::async {
906	my ($self, $cb) = @_;	2099	my ($self, $cb) = @_;
907		2100
908	my $coro; $coro = async {	2101	my $coro = &Coro::async ($cb);
909	eval {	2102
910	$cb->();	2103	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	2104	delete $self->{_coro}{$coro+0};
914	};	2105	});
915		2106
916	$self->{_coro}{$coro+0} = $coro;	2107	$self->{_coro}{$coro+0} = $coro;
		2108
		2109	$coro
917	}	2110	}
918		2111
919	cf::client->attach (	2112	cf::client->attach (
920	on_destroy => sub {	2113	on_destroy => sub {
921	my ($ns) = @_;	2114	my ($ns) = @_;
…		…
946		2139
947	# here we export the classes and methods available to script code	2140	# here we export the classes and methods available to script code
948		2141
949	=pod	2142	=pod
950		2143
951	The following fucntions and emthods are available within a safe environment:	2144	The following functions and methods are available within a safe environment:
952		2145
953	cf::object contr pay_amount pay_player map	2146	cf::object contr pay_amount pay_player map
954	cf::object::player player	2147	cf::object::player player
955	cf::player peaceful	2148	cf::player peaceful
956	cf::map trigger	2149	cf::map trigger
…		…
1049	The parameter C<$family> should best start with the name of the extension	2242	The parameter C<$family> should best start with the name of the extension
1050	using it, it should be unique.	2243	using it, it should be unique.
1051		2244
1052	=over 4	2245	=over 4
1053		2246
1054	=item $hashref = cf::db_get $family
1055
1056	Return a hashref for use by the extension C<$family>, which can be
1057	modified. After modifications, you have to call C<cf::db_dirty> or
1058	C<cf::db_sync>.
1059
1060	=item $value = cf::db_get $family => $key	2247	=item $value = cf::db_get $family => $key
1061		2248
1062	Returns a single value from the database	2249	Returns a single value from the database.
1063
1064	=item cf::db_put $family => $hashref
1065
1066	Stores the given family hashref into the database. Updates are delayed, if
1067	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1068		2250
1069	=item cf::db_put $family => $key => $value	2251	=item cf::db_put $family => $key => $value
1070		2252
1071	Stores the given C<$value> in the family hash. Updates are delayed, if you	2253	Stores the given C<$value> in the family.
1072	want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_dirty
1075
1076	Marks the database as dirty, to be updated at a later time.
1077
1078	=item cf::db_sync
1079
1080	Immediately write the database to disk I<if it is dirty>.
1081		2254
1082	=cut	2255	=cut
1083		2256
1084	our $DB;	2257	our $DB;
1085		2258
1086	{	2259	sub db_init {
		2260	unless ($DB) {
		2261	$DB = BDB::db_create $DB_ENV;
		2262
		2263	cf::sync_job {
		2264	eval {
		2265	$DB->set_flags (BDB::CHKSUM);
		2266
		2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2269	cf::cleanup "db_open(db): $!" if $!;
		2270	};
		2271	cf::cleanup "db_open(db): $@" if $@;
		2272	};
		2273
1087	my $path = cf::localdir . "/database.pst";	2274	my $path = cf::localdir . "/database.pst";
		2275	if (stat $path) {
		2276	cf::sync_job {
		2277	my $pst = Storable::retrieve $path;
1088		2278
1089	sub db_load() {	2279	cf::db_put (board => data => $pst->{board});
1090	warn "loading database $path\n";#d# remove later	2280	cf::db_put (guildrules => data => $pst->{guildrules});
1091	$DB = stat $path ? Storable::retrieve $path : { };	2281	cf::db_put (rent => balance => $pst->{rent}{balance});
1092	}	2282	BDB::db_env_txn_checkpoint $DB_ENV;
1093		2283
1094	my $pid;	2284	unlink $path;
1095
1096	sub db_save() {
1097	warn "saving database $path\n";#d# remove later
1098	waitpid $pid, 0 if $pid;
1099	if (0 == ($pid = fork)) {
1100	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;
1103	cf::_exit 0 if defined $pid;
1104	}	2285	};
1105	}
1106
1107	my $dirty;
1108
1109	sub db_sync() {
1110	db_save if $dirty;
1111	undef $dirty;
1112	}
1113
1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1115	db_sync;
1116	});
1117
1118	sub db_dirty() {
1119	$dirty = 1;
1120	$idle->start;
1121	}
1122
1123	sub db_get($;$) {
1124	@_ >= 2
1125	? $DB->{$_[0]}{$_[1]}
1126	: ($DB->{$_[0]} ||= { })
1127	}
1128
1129	sub db_put($$;$) {
1130	if (@_ >= 3) {
1131	$DB->{$_[0]}{$_[1]} = $_[2];
1132	} else {
1133	$DB->{$_[0]} = $_[1];
1134	}
1135	db_dirty;
1136	}
1137
1138	cf::global->attach (
1139	prio => 10000,
1140	on_cleanup => sub {
1141	db_sync;
1142	},	2286	}
1143	);	2287	}
		2288	}
		2289
		2290	sub db_get($$) {
		2291	my $key = "$_[0]/$_[1]";
		2292
		2293	cf::sync_job {
		2294	BDB::db_get $DB, undef, $key, my $data;
		2295
		2296	$! ? ()
		2297	: Compress::LZF::sthaw $data
		2298	}
		2299	}
		2300
		2301	sub db_put($$$) {
		2302	BDB::dbreq_pri 4;
		2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1144	}	2304	}
1145		2305
1146	#############################################################################	2306	#############################################################################
1147	# the server's main()	2307	# the server's init and main functions
		2308
		2309	sub load_facedata {
		2310	my $path = sprintf "%s/facedata", cf::datadir;
		2311
		2312	warn "loading facedata from $path\n";
		2313
		2314	my $facedata;
		2315	0 < aio_load $path, $facedata
		2316	or die "$path: $!";
		2317
		2318	$facedata = Coro::Storable::thaw $facedata;
		2319
		2320	$facedata->{version} == 2
		2321	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2322
		2323	{
		2324	my $faces = $facedata->{faceinfo};
		2325
		2326	while (my ($face, $info) = each %$faces) {
		2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2331	Coro::cede;
		2332	}
		2333
		2334	while (my ($face, $info) = each %$faces) {
		2335	next unless $info->{smooth};
		2336	my $idx = cf::face::find $face
		2337	or next;
		2338	if (my $smooth = cf::face::find $info->{smooth}) {
		2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2340	} else {
		2341	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2342	}
		2343	Coro::cede;
		2344	}
		2345	}
		2346
		2347	{
		2348	my $anims = $facedata->{animinfo};
		2349
		2350	while (my ($anim, $info) = each %$anims) {
		2351	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2352	Coro::cede;
		2353	}
		2354
		2355	cf::anim::invalidate_all; # d'oh
		2356	}
		2357
		2358	1
		2359	}
		2360
		2361	sub reload_resources {
		2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2363	or die "unable to load regions file\n";#d#
		2364	load_facedata
		2365	or die "unable to load facedata\n";#d#
		2366	}
		2367
		2368	sub init {
		2369	reload_resources;
		2370	}
1148		2371
1149	sub cfg_load {	2372	sub cfg_load {
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2373	open my $fh, "<:utf8", cf::confdir . "/config"
1151	or return;	2374	or return;
1152		2375
1153	local $/;	2376	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2377	*CFG = YAML::Syck::Load <$fh>;
		2378
		2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2380
		2381	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2382	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2383
		2384	if (exists $CFG{mlockall}) {
		2385	eval {
		2386	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2387	and die "WARNING: m(un)lockall failed: $!\n";
		2388	};
		2389	warn $@ if $@;
		2390	}
1155	}	2391	}
1156		2392
1157	sub main {	2393	sub main {
		2394	# we must not ever block the main coroutine
		2395	local $Coro::idle = sub {
		2396	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2397	(async {
		2398	Event::one_event;
		2399	})->prio (Coro::PRIO_MAX);
		2400	};
		2401
1158	cfg_load;	2402	cfg_load;
1159	db_load;	2403	db_init;
1160	load_extensions;	2404	load_extensions;
		2405
		2406	$TICK_WATCHER->start;
1161	Event::loop;	2407	Event::loop;
1162	}	2408	}
1163		2409
1164	#############################################################################	2410	#############################################################################
1165	# initialisation	2411	# initialisation and cleanup
1166		2412
		2413	# install some emergency cleanup handlers
		2414	BEGIN {
		2415	for my $signal (qw(INT HUP TERM)) {
		2416	Event->signal (
		2417	reentrant => 0,
		2418	data => WF_AUTOCANCEL,
		2419	signal => $signal,
		2420	prio => 0,
		2421	cb => sub {
		2422	cf::cleanup "SIG$signal";
		2423	},
		2424	);
		2425	}
		2426	}
		2427
		2428	sub emergency_save() {
		2429	my $freeze_guard = cf::freeze_mainloop;
		2430
		2431	warn "enter emergency perl save\n";
		2432
		2433	cf::sync_job {
		2434	# use a peculiar iteration method to avoid tripping on perl
		2435	# refcount bugs in for. also avoids problems with players
		2436	# and maps saved/destroyed asynchronously.
		2437	warn "begin emergency player save\n";
		2438	for my $login (keys %cf::PLAYER) {
		2439	my $pl = $cf::PLAYER{$login} or next;
		2440	$pl->valid or next;
		2441	$pl->save;
		2442	}
		2443	warn "end emergency player save\n";
		2444
		2445	warn "begin emergency map save\n";
		2446	for my $path (keys %cf::MAP) {
		2447	my $map = $cf::MAP{$path} or next;
		2448	$map->valid or next;
		2449	$map->save;
		2450	}
		2451	warn "end emergency map save\n";
		2452
		2453	warn "begin emergency database checkpoint\n";
		2454	BDB::db_env_txn_checkpoint $DB_ENV;
		2455	warn "end emergency database checkpoint\n";
		2456	};
		2457
		2458	warn "leave emergency perl save\n";
		2459	}
		2460
		2461	sub post_cleanup {
		2462	my ($make_core) = @_;
		2463
		2464	warn Carp::longmess "post_cleanup backtrace"
		2465	if $make_core;
		2466	}
		2467
1167	sub _perl_reload(&) {	2468	sub reload() {
1168	my ($msg) = @_;	2469	# can/must only be called in main
		2470	if ($Coro::current != $Coro::main) {
		2471	warn "can only reload from main coroutine";
		2472	return;
		2473	}
1169		2474
1170	$msg->("reloading...");	2475	warn "reloading...";
1171		2476
1172	eval {	2477	warn "entering sync_job";
1173	# cancel all watchers	2478
		2479	cf::sync_job {
		2480	cf::write_runtime; # external watchdog should not bark
		2481	cf::emergency_save;
		2482	cf::write_runtime; # external watchdog should not bark
		2483
		2484	warn "syncing database to disk";
		2485	BDB::db_env_txn_checkpoint $DB_ENV;
		2486
		2487	# if anything goes wrong in here, we should simply crash as we already saved
		2488
		2489	warn "cancelling all WF_AUTOCANCEL watchers";
1174	for (Event::all_watchers) {	2490	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2491	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2492	}
1177		2493
1178	# unload all extensions	2494	warn "flushing outstanding aio requests";
1179	for (@exts) {	2495	for (;;) {
1180	$msg->("unloading <$_>");	2496	BDB::flush;
1181	unload_extension $_;	2497	IO::AIO::flush;
		2498	Coro::cede;
		2499	last unless IO::AIO::nreqs || BDB::nreqs;
		2500	warn "iterate...";
		2501	}
		2502
		2503	++$RELOAD;
		2504
		2505	warn "cancelling all extension coros";
		2506	$_->cancel for values %EXT_CORO;
		2507	%EXT_CORO = ();
		2508
		2509	warn "removing commands";
		2510	%COMMAND = ();
		2511
		2512	warn "removing ext commands";
		2513	%EXTCMD = ();
		2514
		2515	warn "unloading/nuking all extensions";
		2516	for my $pkg (@EXTS) {
		2517	warn "... unloading $pkg";
		2518
		2519	if (my $cb = $pkg->can ("unload")) {
		2520	eval {
		2521	$cb->($pkg);
		2522	1
		2523	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2524	}
1183		2525
		2526	warn "... nuking $pkg";
		2527	Symbol::delete_package $pkg;
		2528	}
		2529
1184	# unload all modules loaded from $LIBDIR	2530	warn "unloading all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2531	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2533
1188	$msg->("removing <$k>");	2534	warn "... unloading $k";
1189	delete $INC{$k};	2535	delete $INC{$k};
1190		2536
1191	$k =~ s/\.pm$//;	2537	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2538	$k =~ s/\//::/g;
1193		2539
…		…
1196	}	2542	}
1197		2543
1198	Symbol::delete_package $k;	2544	Symbol::delete_package $k;
1199	}	2545	}
1200		2546
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2547	warn "getting rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2548	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2550
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2551	warn "unloading cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2552	delete $INC{"cf.pm"};
1213		2553
1214	# don't, removes xs symbols, too,	2554	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2555	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2556	#Symbol::delete_package __PACKAGE__;
1217		2557
1218	# reload cf.pm	2558	warn "unload completed, starting to reload now";
		2559
1219	$msg->("reloading cf.pm");	2560	warn "reloading cf.pm";
1220	require cf;	2561	require cf;
		2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2563
1222	# load config and database again	2564	warn "loading config and database again";
1223	cf::cfg_load;	2565	cf::cfg_load;
1224	cf::db_load;
1225		2566
1226	# load extensions	2567	warn "loading extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2568	cf::load_extensions;
1229		2569
1230	# reattach attachments to objects	2570	warn "reattaching attachments to objects/players";
1231	$msg->("reattach");	2571	_global_reattach; # objects, sockets
1232	_global_reattach;	2572	warn "reattaching attachments to maps";
		2573	reattach $_ for values %MAP;
		2574	warn "reattaching attachments to players";
		2575	reattach $_ for values %PLAYER;
		2576
		2577	warn "loading reloadable resources";
		2578	reload_resources;
		2579
		2580	warn "leaving sync_job";
		2581
		2582	1
		2583	} or do {
		2584	warn $@;
		2585	warn "error while reloading, exiting.";
		2586	exit 1;
1233	};	2587	};
1234	$msg->($@) if $@;
1235		2588
1236	$msg->("reloaded");	2589	warn "reloaded";
1237	};	2590	};
1238		2591
1239	sub perl_reload() {	2592	our $RELOAD_WATCHER; # used only during reload
1240	_perl_reload {
1241	warn $_[0];
1242	print "$_[0]\n";
1243	};
1244	}
1245		2593
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2594	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2595	my ($who, $arg) = @_;
1250		2596
1251	if ($who->flag (FLAG_WIZ)) {	2597	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2598	$who->message ("reloading server.");
1253	warn $_[0];	2599
1254	$who->message ($_[0]);	2600	# doing reload synchronously and two reloads happen back-to-back,
		2601	# coro crashes during coro_state_free->destroy here.
		2602
		2603	$RELOAD_WATCHER ||= Event->timer (
		2604	reentrant => 0,
		2605	after => 0,
		2606	data => WF_AUTOCANCEL,
		2607	cb => sub {
		2608	reload;
		2609	undef $RELOAD_WATCHER;
		2610	},
1255	};	2611	);
1256	}	2612	}
1257	};	2613	};
1258		2614
1259	unshift @INC, $LIBDIR;	2615	unshift @INC, $LIBDIR;
1260		2616
		2617	my $bug_warning = 0;
		2618
1261	$TICK_WATCHER = Event->timer (	2619	$TICK_WATCHER = Event->timer (
		2620	reentrant => 0,
		2621	parked => 1,
1262	prio => 0,	2622	prio => 0,
1263	at => $NEXT_TICK || 1,	2623	at => $NEXT_TICK || $TICK,
1264	data => WF_AUTOCANCEL,	2624	data => WF_AUTOCANCEL,
1265	cb => sub {	2625	cb => sub {
		2626	if ($Coro::current != $Coro::main) {
		2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2628	unless ++$bug_warning > 10;
		2629	return;
		2630	}
		2631
		2632	$NOW = Event::time;
		2633
1266	cf::server_tick; # one server iteration	2634	cf::server_tick; # one server iteration
1267		2635	$RUNTIME += $TICK;
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	2636	$NEXT_TICK += $TICK;
1270		2637
		2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2639	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2640	Coro::async_pool {
		2641	write_runtime
		2642	or warn "ERROR: unable to write runtime file: $!";
		2643	};
		2644	}
		2645
		2646	$WAIT_FOR_TICK->broadcast;
		2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2648
		2649	# my $AFTER = Event::time;
		2650	# warn $AFTER - $NOW;#d#
		2651
1271	# if we are delayed by four ticks or more, skip them all	2652	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273		2654
1274	$TICK_WATCHER->at ($NEXT_TICK);	2655	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	2656	$TICK_WATCHER->start;
1276	},	2657	},
1277	);	2658	);
1278		2659
		2660	{
		2661	BDB::max_poll_time $TICK * 0.1;
		2662	$BDB_POLL_WATCHER = Event->io (
		2663	reentrant => 0,
		2664	fd => BDB::poll_fileno,
		2665	poll => 'r',
		2666	prio => 0,
		2667	data => WF_AUTOCANCEL,
		2668	cb => \&BDB::poll_cb,
		2669	);
		2670	BDB::min_parallel 8;
		2671
		2672	BDB::set_sync_prepare {
		2673	my $status;
		2674	my $current = $Coro::current;
		2675	(
		2676	sub {
		2677	$status = $!;
		2678	$current->ready; undef $current;
		2679	},
		2680	sub {
		2681	Coro::schedule while defined $current;
		2682	$! = $status;
		2683	},
		2684	)
		2685	};
		2686
		2687	unless ($DB_ENV) {
		2688	$DB_ENV = BDB::db_env_create;
		2689
		2690	cf::sync_job {
		2691	eval {
		2692	BDB::db_env_open
		2693	$DB_ENV,
		2694	$BDB_ENV_DIR,
		2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2697	0666;
		2698
		2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2700
		2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2702	$DB_ENV->set_lk_detect;
		2703	};
		2704
		2705	cf::cleanup "db_env_open(db): $@" if $@;
		2706	};
		2707	}
		2708	}
		2709
		2710	{
		2711	IO::AIO::min_parallel 8;
		2712
		2713	undef $Coro::AIO::WATCHER;
1279	IO::AIO::max_poll_time $TICK * 0.2;	2714	IO::AIO::max_poll_time $TICK * 0.1;
1280		2715	$AIO_POLL_WATCHER = Event->io (
1281	Event->io (fd => IO::AIO::poll_fileno,	2716	reentrant => 0,
1282	poll => 'r',
1283	prio => 5,
1284	data => WF_AUTOCANCEL,	2717	data => WF_AUTOCANCEL,
		2718	fd => IO::AIO::poll_fileno,
		2719	poll => 'r',
		2720	prio => 6,
1285	cb => \&IO::AIO::poll_cb);	2721	cb => \&IO::AIO::poll_cb,
		2722	);
		2723	}
		2724
		2725	END { cf::emergency_save }
1286		2726
1287	1	2727	1
1288		2728

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