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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC vs.
Revision 1.205 by root, Mon Feb 5 18:29:20 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 Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
		23	use IO::AIO 2.32 ();
20	use YAML::Syck ();	24	use YAML::Syck ();
21	use Time::HiRes;	25	use Time::HiRes;
22		26
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
24		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
27		33
28	$Coro::main->prio (Coro::PRIO_MIN);	34	$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		35
32	our %COMMAND = ();	36	our %COMMAND = ();
33	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	40	our %EXTCMD = ();
35		41	our %EXT_CORO = (); # coroutines bound to extensions
36	_init_vars;	42	our %EXT_MAP = (); # pluggable maps
37		43
38	our @EVENT;	44	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
40		46
41	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
		53	our $USE_FSYNC = 1; # use fsync to write maps - default off
44		54
45	our %CFG;	55	our %CFG;
46		56
47	our $UPTIME; $UPTIME ||= time;	57	our $UPTIME; $UPTIME ||= time;
		58	our $RUNTIME;
		59
		60	our %PLAYER; # all users
		61	our %MAP; # all maps
		62	our $LINK_MAP; # the special {link} map, which is always available
		63	our $RANDOM_MAPS = cf::localdir . "/random";
		64
		65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		67
		68	# used to convert map paths into valid unix filenames by replacing / by ∕
		69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		70
		71	binmode STDOUT;
		72	binmode STDERR;
		73
		74	# read virtual server time, if available
		75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		76	open my $fh, "<", cf::localdir . "/runtime"
		77	or die "unable to read runtime file: $!";
		78	$RUNTIME = <$fh> + 0.;
		79	}
		80
		81	mkdir cf::localdir;
		82	mkdir cf::localdir . "/" . cf::playerdir;
		83	mkdir cf::localdir . "/" . cf::tmpdir;
		84	mkdir cf::localdir . "/" . cf::uniquedir;
		85	mkdir $RANDOM_MAPS;
		86
		87	our $EMERGENCY_POSITION;
		88
		89	sub cf::map::normalise;
48		90
49	#############################################################################	91	#############################################################################
50		92
51	=head2 GLOBAL VARIABLES	93	=head2 GLOBAL VARIABLES
52		94
53	=over 4	95	=over 4
54		96
55	=item $cf::UPTIME	97	=item $cf::UPTIME
56		98
57	The timestamp of the server start (so not actually an uptime).	99	The timestamp of the server start (so not actually an uptime).
		100
		101	=item $cf::RUNTIME
		102
		103	The time this server has run, starts at 0 and is increased by $cf::TICK on
		104	every server tick.
58		105
59	=item $cf::LIBDIR	106	=item $cf::LIBDIR
60		107
61	The perl library directory, where extensions and cf-specific modules can	108	The perl library directory, where extensions and cf-specific modules can
62	be found. It will be added to C<@INC> automatically.	109	be found. It will be added to C<@INC> automatically.
63		110
		111	=item $cf::NOW
		112
		113	The time of the last (current) server tick.
		114
64	=item $cf::TICK	115	=item $cf::TICK
65		116
66	The interval between server ticks, in seconds.	117	The interval between server ticks, in seconds.
67		118
68	=item %cf::CFG	119	=item %cf::CFG
69		120
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	121	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	122	from wherever your confdir points to.
		123
		124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		125
		126	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		127	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		128	processing has been done. Call C<< ->wait >> on them to maximise the
		129	window of cpu time available, or simply to synchronise to the server tick.
72		130
73	=back	131	=back
74		132
75	=cut	133	=cut
76		134
77	BEGIN {	135	BEGIN {
78	*CORE::GLOBAL::warn = sub {	136	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	137	my $msg = join "", @_;
		138	utf8::encode $msg;
		139
80	$msg .= "\n"	140	$msg .= "\n"
81	unless $msg =~ /\n$/;	141	unless $msg =~ /\n$/;
82		142
83	print STDERR "cfperl: $msg";
84	LOG llevError, "cfperl: $msg";	143	LOG llevError, $msg;
85	};	144	};
86	}	145	}
87		146
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	152	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94		153
95	# we bless all objects into (empty) derived classes to force a method lookup	154	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	155	# within the Safe compartment.
97	for my $pkg (qw(	156	for my $pkg (qw(
98	cf::global	157	cf::global cf::attachable
99	cf::object cf::object::player	158	cf::object cf::object::player
100	cf::client cf::player	159	cf::client cf::player
101	cf::arch cf::living	160	cf::arch cf::living
102	cf::map cf::party cf::region	161	cf::map cf::party cf::region
103	)) {	162	)) {
…		…
107		166
108	$Event::DIED = sub {	167	$Event::DIED = sub {
109	warn "error in event callback: @_";	168	warn "error in event callback: @_";
110	};	169	};
111		170
112	my %ext_pkg;
113	my @exts;
114	my @hook;
115
116	=head2 UTILITY FUNCTIONS	171	=head2 UTILITY FUNCTIONS
117		172
118	=over 4	173	=over 4
119		174
		175	=item dumpval $ref
		176
120	=cut	177	=cut
		178
		179	sub dumpval {
		180	eval {
		181	local $SIG{__DIE__};
		182	my $d;
		183	if (1) {
		184	$d = new Data::Dumper([$_[0]], ["*var"]);
		185	$d->Terse(1);
		186	$d->Indent(2);
		187	$d->Quotekeys(0);
		188	$d->Useqq(1);
		189	#$d->Bless(...);
		190	$d->Seen($_[1]) if @_ > 1;
		191	$d = $d->Dump();
		192	}
		193	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		194	$d
		195	} || "[unable to dump $_[0]: '$@']";
		196	}
121		197
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	198	use JSON::Syck (); # TODO# replace by JSON::PC once working
123		199
124	=item $ref = cf::from_json $json	200	=item $ref = cf::from_json $json
125		201
…		…
139	=cut	215	=cut
140		216
141	sub to_json($) {	217	sub to_json($) {
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
143	JSON::Syck::Dump $_[0]	219	JSON::Syck::Dump $_[0]
		220	}
		221
		222	=item cf::lock_wait $string
		223
		224	Wait until the given lock is available. See cf::lock_acquire.
		225
		226	=item my $lock = cf::lock_acquire $string
		227
		228	Wait until the given lock is available and then acquires it and returns
		229	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		230	for example when the coroutine gets canceled), the lock is automatically
		231	returned.
		232
		233	Lock names should begin with a unique identifier (for example, cf::map::find
		234	uses map_find and cf::map::load uses map_load).
		235
		236	=cut
		237
		238	our %LOCK;
		239
		240	sub lock_wait($) {
		241	my ($key) = @_;
		242
		243	# wait for lock, if any
		244	while ($LOCK{$key}) {
		245	push @{ $LOCK{$key} }, $Coro::current;
		246	Coro::schedule;
		247	}
		248	}
		249
		250	sub lock_acquire($) {
		251	my ($key) = @_;
		252
		253	# wait, to be sure we are not locked
		254	lock_wait $key;
		255
		256	$LOCK{$key} = [];
		257
		258	Coro::guard {
		259	# wake up all waiters, to be on the safe side
		260	$_->ready for @{ delete $LOCK{$key} };
		261	}
		262	}
		263
		264	sub freeze_mainloop {
		265	return unless $TICK_WATCHER->is_active;
		266
		267	my $guard = Coro::guard {
		268	$TICK_WATCHER->start;
		269	$WRITE_RUNTIME_WATCHER->start;
		270	};
		271	$WRITE_RUNTIME_WATCHER->stop;
		272	$TICK_WATCHER->stop;
		273	$guard
		274	}
		275
		276	=item cf::async { BLOCK }
		277
		278	Currently the same as Coro::async_pool, meaning you cannot use
		279	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		280	thing you are allowed to do is call C<prio> on it.
		281
		282	=cut
		283
		284	BEGIN { *async = \&Coro::async_pool }
		285
		286	=item cf::sync_job { BLOCK }
		287
		288	The design of crossfire+ requires that the main coro ($Coro::main) is
		289	always able to handle events or runnable, as crossfire+ is only partly
		290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		291
		292	If it must be done, put the blocking parts into C<sync_job>. This will run
		293	the given BLOCK in another coroutine while waiting for the result. The
		294	server will be frozen during this time, so the block should either finish
		295	fast or be very important.
		296
		297	=cut
		298
		299	sub sync_job(&) {
		300	my ($job) = @_;
		301
		302	if ($Coro::current == $Coro::main) {
		303	# this is the main coro, too bad, we have to block
		304	# till the operation succeeds, freezing the server :/
		305
		306	# TODO: use suspend/resume instead
		307	# (but this is cancel-safe)
		308	my $freeze_guard = freeze_mainloop;
		309
		310	my $busy = 1;
		311	my @res;
		312
		313	(async {
		314	@res = eval { $job->() };
		315	warn $@ if $@;
		316	undef $busy;
		317	})->prio (Coro::PRIO_MAX);
		318
		319	while ($busy) {
		320	Coro::cede or Event::one_event;
		321	}
		322
		323	wantarray ? @res : $res[0]
		324	} else {
		325	# we are in another coroutine, how wonderful, everything just works
		326
		327	$job->()
		328	}
		329	}
		330
		331	=item $coro = cf::async_ext { BLOCK }
		332
		333	Like async, but this coro is automatically being canceled when the
		334	extension calling this is being unloaded.
		335
		336	=cut
		337
		338	sub async_ext(&) {
		339	my $cb = shift;
		340
		341	my $coro = &Coro::async ($cb);
		342
		343	$coro->on_destroy (sub {
		344	delete $EXT_CORO{$coro+0};
		345	});
		346	$EXT_CORO{$coro+0} = $coro;
		347
		348	$coro
		349	}
		350
		351	sub write_runtime {
		352	my $runtime = cf::localdir . "/runtime";
		353
		354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		355	or return;
		356
		357	my $value = $cf::RUNTIME + 90 + 10;
		358	# 10 is the runtime save interval, for a monotonic clock
		359	# 60 allows for the watchdog to kill the server.
		360
		361	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		362	and return;
		363
		364	# always fsync - this file is important
		365	aio_fsync $fh
		366	and return;
		367
		368	close $fh
		369	or return;
		370
		371	aio_rename "$runtime~", $runtime
		372	and return;
		373
		374	1
144	}	375	}
145		376
146	=back	377	=back
147		378
148	=cut	379	=cut
…		…
269	exception.	500	exception.
270		501
271	=cut	502	=cut
272		503
273	# the following variables are defined in .xs and must not be re-created	504	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	505	our @CB_GLOBAL = (); # registry for all global events
		506	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	507	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	508	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	509	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	510	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	511	our @CB_MAP = ();
280		512
281	my %attachment;	513	my %attachment;
		514
		515	sub cf::attachable::thawer_merge {
		516	# simply override everything except _meta
		517	local $_[0]{_meta};
		518	%{$_[0]} = %{$_[1]};
		519	}
282		520
283	sub _attach_cb($$$$) {	521	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	522	my ($registry, $event, $prio, $cb) = @_;
285		523
286	use sort 'stable';	524	use sort 'stable';
…		…
289		527
290	@{$registry->[$event]} = sort	528	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	529	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	530	@{$registry->[$event] || []}, $cb;
293	}	531	}
		532
		533	# hack
		534	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		535
295	# attach handles attaching event callbacks	536	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	537	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	538	# registry (== where the callback attaches to).
298	sub _attach {	539	sub _attach {
…		…
300		541
301	my $object_type;	542	my $object_type;
302	my $prio = 0;	543	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	544	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		545
		546	#TODO: get rid of this hack
		547	if ($attachable_klass{$klass}) {
		548	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		549	}
		550
305	while (@arg) {	551	while (@arg) {
306	my $type = shift @arg;	552	my $type = shift @arg;
307		553
308	if ($type eq "prio") {	554	if ($type eq "prio") {
309	$prio = shift @arg;	555	$prio = shift @arg;
…		…
384	my ($obj, $name) = @_;	630	my ($obj, $name) = @_;
385		631
386	exists $obj->{_attachment}{$name}	632	exists $obj->{_attachment}{$name}
387	}	633	}
388		634
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	635	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	636	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	637	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	638	(\\\@CB_$klass, KLASS_$klass)
393	}	639	}
394		640
…		…
447	=cut	693	=cut
448		694
449	#############################################################################	695	#############################################################################
450	# object support	696	# object support
451		697
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 {	698	sub reattach {
		699	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	700	my ($obj) = @_;
		701
		702	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		703
467	my $registry = $obj->registry;	704	my $registry = $obj->registry;
468		705
469	@$registry = ();	706	@$registry = ();
470		707
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	708	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	717	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	718	}
482	}	719	}
483	}	720	}
484		721
485	sub object_freezer_save {	722	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	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	723	prio => -1000000,
		724	on_instantiate => sub {
		725	my ($obj, $data) = @_;
		726
		727	$data = from_json $data;
		728
		729	for (@$data) {
		730	my ($name, $args) = @$_;
		731
		732	$obj->attach ($name, %{$args || {} });
		733	}
		734	},
		735	on_reattach => \&reattach,
545	on_clone => sub {	736	on_clone => sub {
546	my ($src, $dst) = @_;	737	my ($src, $dst) = @_;
547		738
548	@{$dst->registry} = @{$src->registry};	739	@{$dst->registry} = @{$src->registry};
549		740
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	743	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	744	if exists $src->{_attachment};
554	},	745	},
555	);	746	);
556		747
		748	sub object_freezer_save {
		749	my ($filename, $rdata, $objs) = @_;
		750
		751	sync_job {
		752	if (length $$rdata) {
		753	warn sprintf "saving %s (%d,%d)\n",
		754	$filename, length $$rdata, scalar @$objs;
		755
		756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		757	chmod SAVE_MODE, $fh;
		758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		759	aio_fsync $fh if $cf::USE_FSYNC;
		760	close $fh;
		761
		762	if (@$objs) {
		763	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		764	chmod SAVE_MODE, $fh;
		765	my $data = Storable::nfreeze { version => 1, objs => $objs };
		766	aio_write $fh, 0, (length $data), $data, 0;
		767	aio_fsync $fh if $cf::USE_FSYNC;
		768	close $fh;
		769	aio_rename "$filename.pst~", "$filename.pst";
		770	}
		771	} else {
		772	aio_unlink "$filename.pst";
		773	}
		774
		775	aio_rename "$filename~", $filename;
		776	} else {
		777	warn "FATAL: $filename~: $!\n";
		778	}
		779	} else {
		780	aio_unlink $filename;
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	#d##TODO# nuke non .map-files if exist
		785	if ($filename =~ s/\.map$//) {
		786	aio_unlink $filename;
		787	aio_unlink "$filename.pst";
		788	}
		789	}
		790	}
		791
		792	sub object_freezer_as_string {
		793	my ($rdata, $objs) = @_;
		794
		795	use Data::Dumper;
		796
		797	$$rdata . Dumper $objs
		798	}
		799
		800	sub object_thawer_load {
		801	my ($filename) = @_;
		802
		803	my ($data, $av);
		804
		805	#d#TODO remove .map if file does not exist
		806	aio_stat $filename and $filename =~ s/\.map$//;
		807
		808	(aio_load $filename, $data) >= 0
		809	or return;
		810
		811	unless (aio_stat "$filename.pst") {
		812	(aio_load "$filename.pst", $av) >= 0
		813	or return;
		814	$av = eval { (Storable::thaw $av)->{objs} };
		815	}
		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
		819	return ($data, $av);
		820	}
		821
557	#############################################################################	822	#############################################################################
558	# command handling &c	823	# command handling &c
559		824
560	=item cf::register_command $name => \&callback($ob,$args);	825	=item cf::register_command $name => \&callback($ob,$args);
561		826
…		…
583	=cut	848	=cut
584		849
585	sub register_extcmd {	850	sub register_extcmd {
586	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
587		852
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
592	}	854	}
593		855
594	cf::player->attach (	856	cf::player->attach (
595	on_command => sub {	857	on_command => sub {
596	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
609		871
610	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
611		873
612	if (ref $msg) {	874	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	878	}
617	}	879	}
618	} else {	880	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		883
622	cf::override;	884	cf::override;
623	},	885	},
624	);	886	);
625		887
626	sub register {
627	my ($base, $pkg) = @_;
628
629	#TODO
630	}
631
632	sub load_extension {	888	sub load_extension {
633	my ($path) = @_;	889	my ($path) = @_;
634		890
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
636	my $base = $1;	892	my $base = $1;
637	my $pkg = $1;	893	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
640		896
641	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
642		898
643	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
644	or die "$path: $!";	900	or die "$path: $!";
645		901
646	my $source =	902	my $source =
647	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
650	. "\n};\n1";	906	. "\n};\n1";
651		907
652	eval $source	908	unless (eval $source) {
653	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
654	: "extension disabled.\n";	910	: "extension disabled.\n";
655		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
656	push @exts, $pkg;	912	warn $@;
657	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
658		914	exit 1;
659	# no strict 'refs';	915	}
660	# @{"$pkg\::ISA"} = ext::;	916	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	# }	917	}
675		918
676	# remove commands	919	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	}	920	}
701		921
702	sub load_extensions {	922	sub load_extensions {
703	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	924	next unless -r $ext;
…		…
708	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
709	}	929	}
710	}	930	}
711		931
712	#############################################################################	932	#############################################################################
713	# load/save/clean perl data associated with a map
714		933
715	*cf::mapsupport::on_clean = sub {	934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
		1102	}
		1103
		1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1105
		1106	Sends an ext reply to the player.
		1107
		1108	=cut
		1109
		1110	sub ext_reply($$$%) {
		1111	my ($self, $id, %msg) = @_;
		1112
		1113	$msg{msgid} = $id;
		1114
		1115	$self->send ("ext " . cf::to_json \%msg);
		1116	}
		1117
		1118	package cf;
		1119
		1120	=back
		1121
		1122
		1123	=head3 cf::map
		1124
		1125	=over 4
		1126
		1127	=cut
		1128
		1129	package cf::map;
		1130
		1131	use Fcntl;
		1132	use Coro::AIO;
		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
		1138	our $MAX_RESET = 3600;
		1139	our $DEFAULT_RESET = 3000;
		1140
		1141	sub generate_random_map {
		1142	my ($self, $rmp) = @_;
		1143	# mit "rum" bekleckern, nicht
		1144	$self->_create_random_map (
		1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1148	$rmp->{exit_on_final_map},
		1149	$rmp->{xsize}, $rmp->{ysize},
		1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1286	}
		1287
		1288	# and all this just because we cannot iterate over
		1289	# all maps in C++...
		1290	sub change_all_map_light {
		1291	my ($change) = @_;
		1292
		1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
		1295	}
		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303
		1304	#d#TODO remove .map and also nuke
		1305	$save =~ s/\.map// or return;#d#
		1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1308	}
		1309
		1310	sub load_header_from($) {
		1311	my ($self, $path) = @_;
		1312
		1313	utf8::encode $path;
		1314	#aio_open $path, O_RDONLY, 0
		1315	# or return;
		1316
		1317	$self->_load_header ($path)
		1318	or return;
		1319
		1320	$self->{load_path} = $path;
		1321
		1322	1
		1323	}
		1324
		1325	sub load_header_orig {
		1326	my ($self) = @_;
		1327
		1328	$self->load_header_from ($self->load_path)
		1329	}
		1330
		1331	sub load_header_temp {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->save_path)
		1335	}
		1336
		1337	sub prepare_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->last_access ((delete $self->{last_access})
		1341	|| $cf::RUNTIME); #d#
		1342	# safety
		1343	$self->{instantiate_time} = $cf::RUNTIME
		1344	if $self->{instantiate_time} > $cf::RUNTIME;
		1345	}
		1346
		1347	sub prepare_orig {
		1348	my ($self) = @_;
		1349
		1350	$self->{load_original} = 1;
		1351	$self->{instantiate_time} = $cf::RUNTIME;
		1352	$self->last_access ($cf::RUNTIME);
		1353	$self->instantiate;
		1354	}
		1355
		1356	sub load_header {
		1357	my ($self) = @_;
		1358
		1359	if ($self->load_header_temp) {
		1360	$self->prepare_temp;
		1361	} else {
		1362	$self->load_header_orig
		1363	or return;
		1364	$self->prepare_orig;
		1365	}
		1366
		1367	1
		1368	}
		1369
		1370	sub find;
		1371	sub find {
		1372	my ($path, $origin) = @_;
		1373
		1374	$path = normalise $path, $origin && $origin->path;
		1375
		1376	cf::lock_wait "map_find:$path";
		1377
		1378	$cf::MAP{$path} || do {
		1379	my $guard = cf::lock_acquire "map_find:$path";
		1380	my $map = new_from_path cf::map $path
		1381	or return;
		1382
		1383	$map->{last_save} = $cf::RUNTIME;
		1384
		1385	$map->load_header
		1386	or return;
		1387
		1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1389	# doing this can freeze the server in a sync job, obviously
		1390	#$cf::WAIT_FOR_TICK->wait;
		1391	$map->reset;
		1392	undef $guard;
		1393	return find $path;
		1394	}
		1395
		1396	$cf::MAP{$path} = $map
		1397	}
		1398	}
		1399
		1400	sub pre_load { }
		1401	sub post_load { }
		1402
		1403	sub load {
		1404	my ($self) = @_;
		1405
		1406	local $self->{deny_reset} = 1; # loading can take a long time
		1407
		1408	my $path = $self->{path};
		1409	my $guard = cf::lock_acquire "map_load:$path";
		1410
		1411	return if $self->in_memory != cf::MAP_SWAPPED;
		1412
		1413	$self->in_memory (cf::MAP_LOADING);
		1414
		1415	$self->alloc;
		1416
		1417	$self->pre_load;
		1418
		1419	$self->_load_objects ($self->{load_path}, 1)
		1420	or return;
		1421
		1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1423	if delete $self->{load_original};
		1424
		1425	if (my $uniq = $self->uniq_path) {
		1426	utf8::encode $uniq;
		1427	if (aio_open $uniq, O_RDONLY, 0) {
		1428	$self->clear_unique_items;
		1429	$self->_load_objects ($uniq, 0);
		1430	}
		1431	}
		1432
		1433	Coro::cede;
		1434
		1435	# now do the right thing for maps
		1436	$self->link_multipart_objects;
		1437
		1438	unless ($self->{deny_activate}) {
		1439	$self->decay_objects;
		1440	$self->fix_auto_apply;
		1441	$self->update_buttons;
		1442	Coro::cede;
		1443	$self->set_darkness_map;
		1444	$self->difficulty ($self->estimate_difficulty)
		1445	unless $self->difficulty;
		1446	Coro::cede;
		1447	$self->activate;
		1448	}
		1449
		1450	$self->post_load;
		1451
		1452	$self->in_memory (cf::MAP_IN_MEMORY);
		1453	}
		1454
		1455	sub customise_for {
		1456	my ($self, $ob) = @_;
		1457
		1458	return find "~" . $ob->name . "/" . $self->{path}
		1459	if $self->per_player;
		1460
		1461	$self
		1462	}
		1463
		1464	# find and load all maps in the 3x3 area around a map
		1465	sub load_diag {
716	my ($map) = @_;	1466	my ($map) = @_;
717		1467
718	my $path = $map->tmpname;	1468	my @diag; # diagonal neighbours
719	defined $path or return;
720		1469
721	unlink "$path.pst";	1470	for (0 .. 3) {
722	};	1471	my $neigh = $map->tile_path ($_)
		1472	or next;
		1473	$neigh = find $neigh, $map
		1474	or next;
		1475	$neigh->load;
723		1476
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1479	}
725		1480
726	#############################################################################	1481	for (@diag) {
727	# load/save perl data associated with player->ob objects	1482	my $neigh = find @$_
728		1483	or next;
729	sub all_objects(@) {	1484	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1485	}
731	}	1486	}
732		1487
733	# TODO: compatibility cruft, remove when no longer needed	1488	sub find_sync {
734	cf::player->attach (	1489	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1490
738	for my $o (all_objects $pl->ob) {	1491	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1492	}
740	$o->set_ob_key_value ("_perl_data");
741		1493
742	%$o = %{ Storable::thaw pack "H*", $value };	1494	sub do_load_sync {
		1495	my ($map) = @_;
		1496
		1497	cf::sync_job { $map->load };
		1498	}
		1499
		1500	our %MAP_PREFETCH;
		1501	our $MAP_PREFETCHER = undef;
		1502
		1503	sub find_async {
		1504	my ($path, $origin) = @_;
		1505
		1506	$path = normalise $path, $origin && $origin->{path};
		1507
		1508	if (my $map = $cf::MAP{$path}) {
		1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1510	}
		1511
		1512	undef $MAP_PREFETCH{$path};
		1513	$MAP_PREFETCHER ||= cf::async {
		1514	while (%MAP_PREFETCH) {
		1515	for my $path (keys %MAP_PREFETCH) {
		1516	my $map = find $path
		1517	or next;
		1518	$map->load;
		1519
		1520	delete $MAP_PREFETCH{$path};
743	}	1521	}
744	}	1522	}
		1523	undef $MAP_PREFETCHER;
		1524	};
		1525	$MAP_PREFETCHER->prio (6);
		1526
		1527	()
		1528	}
		1529
		1530	sub save {
		1531	my ($self) = @_;
		1532
		1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1534
		1535	$self->{last_save} = $cf::RUNTIME;
		1536
		1537	return unless $self->dirty;
		1538
		1539	my $save = $self->save_path; utf8::encode $save;
		1540	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1541
		1542	$self->{load_path} = $save;
		1543
		1544	return if $self->{deny_save};
		1545
		1546	local $self->{last_access} = $self->last_access;#d#
		1547
		1548	cf::async {
		1549	$_->contr->save for $self->players;
		1550	};
		1551
		1552	if ($uniq) {
		1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1555	} else {
		1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1557	}
746	);	1558	}
747		1559
748	#############################################################################	1560	sub swap_out {
		1561	my ($self) = @_;
749		1562
750	=head2 CORE EXTENSIONS	1563	# save first because save cedes
		1564	$self->save;
751		1565
752	Functions and methods that extend core crossfire objects.	1566	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1567
754	=head3 cf::player	1568	return if $self->players;
		1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1570	return if $self->{deny_save};
		1571
		1572	$self->clear;
		1573	$self->in_memory (cf::MAP_SWAPPED);
		1574	}
		1575
		1576	sub reset_at {
		1577	my ($self) = @_;
		1578
		1579	# TODO: safety, remove and allow resettable per-player maps
		1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1581	return 1e99 if $self->{deny_reset};
		1582
		1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1585
		1586	$time + $to
		1587	}
		1588
		1589	sub should_reset {
		1590	my ($self) = @_;
		1591
		1592	$self->reset_at <= $cf::RUNTIME
		1593	}
		1594
		1595	sub reset {
		1596	my ($self) = @_;
		1597
		1598	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1599
		1600	return if $self->players;
		1601	return if $self->isa ("ext::map_per_player");#d#
		1602
		1603	warn "resetting map ", $self->path;#d#
		1604
		1605	delete $cf::MAP{$self->path};
		1606
		1607	$self->in_memory (cf::MAP_SWAPPED);
		1608	$self->clear;
		1609
		1610	$_->clear_links_to ($self) for values %cf::MAP;
		1611
		1612	$self->unlink_save;
		1613	$self->destroy;
		1614	}
		1615
		1616	my $nuke_counter = "aaaa";
		1617
		1618	sub nuke {
		1619	my ($self) = @_;
		1620
		1621	delete $cf::MAP{$self->path};
		1622
		1623	$self->unlink_save;
		1624
		1625	bless $self, "cf::map";
		1626	delete $self->{deny_reset};
		1627	$self->{deny_save} = 1;
		1628	$self->reset_timeout (1);
		1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1630
		1631	$cf::MAP{$self->path} = $self;
		1632
		1633	$self->reset; # polite request, might not happen
		1634	}
		1635
		1636	=item cf::map::unique_maps
		1637
		1638	Returns an arrayref of paths of all shared maps that have
		1639	instantiated unique items. May block.
		1640
		1641	=cut
		1642
		1643	sub unique_maps() {
		1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1645	or return;
		1646
		1647	my @paths;
		1648
		1649	for (@$files) {
		1650	utf8::decode $_;
		1651	next if /\.pst$/;
		1652	next unless /^$PATH_SEP/o;
		1653
		1654	push @paths, cf::map::normalise $_;
		1655	}
		1656
		1657	\@paths
		1658	}
		1659
		1660	package cf;
		1661
		1662	=back
		1663
		1664	=head3 cf::object
		1665
		1666	=cut
		1667
		1668	package cf::object;
755		1669
756	=over 4	1670	=over 4
757		1671
758	=item cf::player::exists $login	1672	=item $ob->inv_recursive
759		1673
760	Returns true when the given account exists.	1674	Returns the inventory of the object _and_ their inventories, recursively.
761		1675
762	=cut	1676	=cut
763		1677
764	sub cf::player::exists($) {	1678	sub inv_recursive_;
765	cf::player::find $_[0]	1679	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1680	map { $_, inv_recursive_ $_->inv } @_
767	}	1681	}
768		1682
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1683	sub inv_recursive {
770		1684	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	}	1685	}
		1686
		1687	package cf;
782		1688
783	=back	1689	=back
784		1690
785	=head3 cf::object::player	1691	=head3 cf::object::player
786		1692
…		…
824	(ref $cf::CFG{"may_$access"}	1730	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1731	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1732	: $cf::CFG{"may_$access"})
827	}	1733	}
828		1734
		1735	=item $player_object->enter_link
		1736
		1737	Freezes the player and moves him/her to a special map (C<{link}>).
		1738
		1739	The player should be reasonably safe there for short amounts of time. You
		1740	I<MUST> call C<leave_link> as soon as possible, though.
		1741
		1742	Will never block.
		1743
		1744	=item $player_object->leave_link ($map, $x, $y)
		1745
		1746	Moves the player out of the special C<{link}> map onto the specified
		1747	map. If the map is not valid (or omitted), the player will be moved back
		1748	to the location he/she was before the call to C<enter_link>, or, if that
		1749	fails, to the emergency map position.
		1750
		1751	Might block.
		1752
		1753	=cut
		1754
		1755	sub link_map {
		1756	unless ($LINK_MAP) {
		1757	$LINK_MAP = cf::map::find "{link}"
		1758	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1759	$LINK_MAP->load;
		1760	}
		1761
		1762	$LINK_MAP
		1763	}
		1764
		1765	sub cf::object::player::enter_link {
		1766	my ($self) = @_;
		1767
		1768	$self->deactivate_recursive;
		1769
		1770	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1771
		1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1773	if $self->map;
		1774
		1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1776	}
		1777
		1778	sub cf::object::player::leave_link {
		1779	my ($self, $map, $x, $y) = @_;
		1780
		1781	my $link_pos = delete $self->{_link_pos};
		1782
		1783	unless ($map) {
		1784	# restore original map position
		1785	($map, $x, $y) = @{ $link_pos || [] };
		1786	$map = cf::map::find $map;
		1787
		1788	unless ($map) {
		1789	($map, $x, $y) = @$EMERGENCY_POSITION;
		1790	$map = cf::map::find $map
		1791	or die "FATAL: cannot load emergency map\n";
		1792	}
		1793	}
		1794
		1795	($x, $y) = (-1, -1)
		1796	unless (defined $x) && (defined $y);
		1797
		1798	# use -1 or undef as default coordinates, not 0, 0
		1799	($x, $y) = ($map->enter_x, $map->enter_y)
		1800	if $x <=0 && $y <= 0;
		1801
		1802	$map->load;
		1803	$map->load_diag;
		1804
		1805	return unless $self->contr->active;
		1806	$self->activate_recursive;
		1807	$self->enter_map ($map, $x, $y);
		1808	}
		1809
		1810	cf::player->attach (
		1811	on_logout => sub {
		1812	my ($pl) = @_;
		1813
		1814	# abort map switching before logout
		1815	if ($pl->ob->{_link_pos}) {
		1816	cf::sync_job {
		1817	$pl->ob->leave_link
		1818	};
		1819	}
		1820	},
		1821	on_login => sub {
		1822	my ($pl) = @_;
		1823
		1824	# try to abort aborted map switching on player login :)
		1825	# should happen only on crashes
		1826	if ($pl->ob->{_link_pos}) {
		1827	$pl->ob->enter_link;
		1828	(async {
		1829	# we need this sleep as the login has a concurrent enter_exit running
		1830	# and this sleep increases chances of the player not ending up in scorn
		1831	$pl->ob->reply (undef,
		1832	"There was an internal problem at your last logout, "
		1833	. "the server will try to bring you to your intended destination in a second.",
		1834	cf::NDI_RED);
		1835	Coro::Timer::sleep 1;
		1836	$pl->ob->leave_link;
		1837	})->prio (2);
		1838	}
		1839	},
		1840	);
		1841
		1842	=item $player_object->goto ($path, $x, $y)
		1843
		1844	=cut
		1845
		1846	sub cf::object::player::goto {
		1847	my ($self, $path, $x, $y) = @_;
		1848
		1849	$self->enter_link;
		1850
		1851	(async {
		1852	my $map = eval {
		1853	my $map = cf::map::find $path;
		1854	$map = $map->customise_for ($self) if $map;
		1855	$map
		1856	} or
		1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1858
		1859	$self->leave_link ($map, $x, $y);
		1860	})->prio (1);
		1861	}
		1862
		1863	=item $player_object->enter_exit ($exit_object)
		1864
		1865	=cut
		1866
		1867	sub parse_random_map_params {
		1868	my ($spec) = @_;
		1869
		1870	my $rmp = { # defaults
		1871	xsize => (cf::rndm 15, 40),
		1872	ysize => (cf::rndm 15, 40),
		1873	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1874	#layout => string,
		1875	};
		1876
		1877	for (split /\n/, $spec) {
		1878	my ($k, $v) = split /\s+/, $_, 2;
		1879
		1880	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1881	}
		1882
		1883	$rmp
		1884	}
		1885
		1886	sub prepare_random_map {
		1887	my ($exit) = @_;
		1888
		1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1890
		1891	# all this does is basically replace the /! path by
		1892	# a new random map path (?random/...) with a seed
		1893	# that depends on the exit object
		1894
		1895	my $rmp = parse_random_map_params $exit->msg;
		1896
		1897	if ($exit->map) {
		1898	$rmp->{region} = $exit->region->name;
		1899	$rmp->{origin_map} = $exit->map->path;
		1900	$rmp->{origin_x} = $exit->x;
		1901	$rmp->{origin_y} = $exit->y;
		1902	}
		1903
		1904	$rmp->{random_seed} ||= $exit->random_seed;
		1905
		1906	my $data = cf::to_json $rmp;
		1907	my $md5 = Digest::MD5::md5_hex $data;
		1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1909
		1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1911	aio_write $fh, 0, (length $data), $data, 0;
		1912	undef $fh;
		1913	aio_rename "$meta~", $meta;
		1914
		1915	$exit->slaying ("?random/$md5");
		1916	$exit->msg (undef);
		1917	}
		1918	}
		1919
		1920	sub cf::object::player::enter_exit {
		1921	my ($self, $exit) = @_;
		1922
		1923	return unless $self->type == cf::PLAYER;
		1924
		1925	if ($exit->slaying eq "/!") {
		1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1927	cf::sync_job { prepare_random_map $exit };
		1928	}
		1929
		1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1931	my $hp = $exit->stats->hp;
		1932	my $sp = $exit->stats->sp;
		1933
		1934	$self->enter_link;
		1935
		1936	(async {
		1937	$self->deactivate_recursive; # just to be sure
		1938	unless (eval {
		1939	$self->goto ($slaying, $hp, $sp);
		1940
		1941	1;
		1942	}) {
		1943	$self->message ("Something went wrong deep within the crossfire server. "
		1944	. "I'll try to bring you back to the map you were before. "
		1945	. "Please report this to the dungeon master!",
		1946	cf::NDI_UNIQUE | cf::NDI_RED);
		1947
		1948	warn "ERROR in enter_exit: $@";
		1949	$self->leave_link;
		1950	}
		1951	})->prio (1);
		1952	}
		1953
829	=head3 cf::client	1954	=head3 cf::client
830		1955
831	=over 4	1956	=over 4
832		1957
833	=item $client->send_drawinfo ($text, $flags)	1958	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	2001	on_reply => sub {
877	my ($ns, $msg) = @_;	2002	my ($ns, $msg) = @_;
878		2003
879	# this weird shuffling is so that direct followup queries	2004	# this weird shuffling is so that direct followup queries
880	# get handled first	2005	# get handled first
881	my $queue = delete $ns->{query_queue};	2006	my $queue = delete $ns->{query_queue}
		2007	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2008
883	(shift @$queue)->[1]->($msg);	2009	(shift @$queue)->[1]->($msg);
		2010	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2011
885	push @{ $ns->{query_queue} }, @$queue;	2012	push @{ $ns->{query_queue} }, @$queue;
886		2013
887	if (@{ $ns->{query_queue} } == @$queue) {	2014	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2015	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	2016	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	2017	} else {
891	$ns->state (ST_PLAYING);	2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	2019	}
893	}	2020	}
894	},	2021	},
895	);	2022	);
896		2023
897	=item $client->coro (\&cb)	2024	=item $client->async (\&cb)
898		2025
899	Create a new coroutine, running the specified callback. The coroutine will	2026	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2027	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2028	or loss of connection).
902		2029
903	=cut	2030	=cut
904		2031
905	sub cf::client::coro {	2032	sub cf::client::async {
906	my ($self, $cb) = @_;	2033	my ($self, $cb) = @_;
907		2034
908	my $coro; $coro = async {	2035	my $coro = &Coro::async ($cb);
909	eval {	2036
910	$cb->();	2037	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	2038	delete $self->{_coro}{$coro+0};
914	};	2039	});
915		2040
916	$self->{_coro}{$coro+0} = $coro;	2041	$self->{_coro}{$coro+0} = $coro;
		2042
		2043	$coro
917	}	2044	}
918		2045
919	cf::client->attach (	2046	cf::client->attach (
920	on_destroy => sub {	2047	on_destroy => sub {
921	my ($ns) = @_;	2048	my ($ns) = @_;
…		…
1085		2212
1086	{	2213	{
1087	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
1088		2215
1089	sub db_load() {	2216	sub db_load() {
1090	warn "loading database $path\n";#d# remove later
1091	$DB = stat $path ? Storable::retrieve $path : { };	2217	$DB = stat $path ? Storable::retrieve $path : { };
1092	}	2218	}
1093		2219
1094	my $pid;	2220	my $pid;
1095		2221
1096	sub db_save() {	2222	sub db_save() {
1097	warn "saving database $path\n";#d# remove later
1098	waitpid $pid, 0 if $pid;	2223	waitpid $pid, 0 if $pid;
1099	if (0 == ($pid = fork)) {	2224	if (0 == ($pid = fork)) {
1100	$DB->{_meta}{version} = 1;	2225	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";	2226	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;	2227	rename "$path~", $path;
…		…
1109	sub db_sync() {	2234	sub db_sync() {
1110	db_save if $dirty;	2235	db_save if $dirty;
1111	undef $dirty;	2236	undef $dirty;
1112	}	2237	}
1113		2238
1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2239	my $idle = Event->idle (
1115	db_sync;	2240	reentrant => 0,
		2241	min => 10,
		2242	max => 20,
		2243	repeat => 0,
		2244	data => WF_AUTOCANCEL,
		2245	cb => \&db_sync,
1116	});	2246	);
1117		2247
1118	sub db_dirty() {	2248	sub db_dirty() {
1119	$dirty = 1;	2249	$dirty = 1;
1120	$idle->start;	2250	$idle->start;
1121	}	2251	}
…		…
1142	},	2272	},
1143	);	2273	);
1144	}	2274	}
1145		2275
1146	#############################################################################	2276	#############################################################################
1147	# the server's main()	2277	# the server's init and main functions
		2278
		2279	sub load_resources {
		2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2281	or die "unable to load regions file\n";#d#
		2282	}
1148		2283
1149	sub cfg_load {	2284	sub cfg_load {
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2285	open my $fh, "<:utf8", cf::confdir . "/config"
1151	or return;	2286	or return;
1152		2287
1153	local $/;	2288	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2289	*CFG = YAML::Syck::Load <$fh>;
		2290
		2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2292
		2293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2295
		2296	if (exists $CFG{mlockall}) {
		2297	eval {
		2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2299	and die "WARNING: m(un)lockall failed: $!\n";
		2300	};
		2301	warn $@ if $@;
		2302	}
		2303	}
		2304
		2305	sub init {
		2306	load_resources;
1155	}	2307	}
1156		2308
1157	sub main {	2309	sub main {
		2310	# we must not ever block the main coroutine
		2311	local $Coro::idle = sub {
		2312	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2313	(async {
		2314	Event::one_event;
		2315	})->prio (Coro::PRIO_MAX);
		2316	};
		2317
1158	cfg_load;	2318	cfg_load;
1159	db_load;	2319	db_load;
1160	load_extensions;	2320	load_extensions;
		2321
		2322	$TICK_WATCHER->start;
1161	Event::loop;	2323	Event::loop;
1162	}	2324	}
1163		2325
1164	#############################################################################	2326	#############################################################################
1165	# initialisation	2327	# initialisation and cleanup
1166		2328
		2329	# install some emergency cleanup handlers
		2330	BEGIN {
		2331	for my $signal (qw(INT HUP TERM)) {
		2332	Event->signal (
		2333	reentrant => 0,
		2334	data => WF_AUTOCANCEL,
		2335	signal => $signal,
		2336	prio => 0,
		2337	cb => sub {
		2338	cf::cleanup "SIG$signal";
		2339	},
		2340	);
		2341	}
		2342	}
		2343
		2344	sub emergency_save() {
		2345	my $freeze_guard = cf::freeze_mainloop;
		2346
		2347	warn "enter emergency perl save\n";
		2348
		2349	cf::sync_job {
		2350	# use a peculiar iteration method to avoid tripping on perl
		2351	# refcount bugs in for. also avoids problems with players
		2352	# and maps saved/destroyed asynchronously.
		2353	warn "begin emergency player save\n";
		2354	for my $login (keys %cf::PLAYER) {
		2355	my $pl = $cf::PLAYER{$login} or next;
		2356	$pl->valid or next;
		2357	$pl->save;
		2358	}
		2359	warn "end emergency player save\n";
		2360
		2361	warn "begin emergency map save\n";
		2362	for my $path (keys %cf::MAP) {
		2363	my $map = $cf::MAP{$path} or next;
		2364	$map->valid or next;
		2365	$map->save;
		2366	}
		2367	warn "end emergency map save\n";
		2368	};
		2369
		2370	warn "leave emergency perl save\n";
		2371	}
		2372
1167	sub _perl_reload(&) {	2373	sub reload() {
1168	my ($msg) = @_;	2374	# can/must only be called in main
		2375	if ($Coro::current != $Coro::main) {
		2376	warn "can only reload from main coroutine";
		2377	return;
		2378	}
1169		2379
1170	$msg->("reloading...");	2380	warn "reloading...";
		2381
		2382	warn "cancelling server ticker";
		2383	$TICK_WATCHER->cancel;
		2384
		2385	cf::emergency_save;
1171		2386
1172	eval {	2387	eval {
1173	# cancel all watchers	2388	# if anything goes wrong in here, we should simply crash as we already saved
		2389
		2390	warn "syncing database to disk";
		2391	cf::db_sync;
		2392
		2393	warn "cancelling all WF_AUTOCANCEL watchers";
1174	for (Event::all_watchers) {	2394	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2395	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2396	}
1177		2397
1178	# unload all extensions	2398	warn "flushing outstanding aio requests";
1179	for (@exts) {	2399	for (;;) {
1180	$msg->("unloading <$_>");	2400	IO::AIO::flush;
1181	unload_extension $_;	2401	Coro::cede;
		2402	last unless IO::AIO::nreqs;
		2403	warn "iterate...";
		2404	}
		2405
		2406	warn "cancelling all extension coros";
		2407	$_->cancel for values %EXT_CORO;
		2408	%EXT_CORO = ();
		2409
		2410	warn "removing commands";
		2411	%COMMAND = ();
		2412
		2413	warn "removing ext commands";
		2414	%EXTCMD = ();
		2415
		2416	warn "unloading/nuking all extensions";
		2417	for my $pkg (@EXTS) {
		2418	warn "... unloading $pkg";
		2419
		2420	if (my $cb = $pkg->can ("unload")) {
		2421	eval {
		2422	$cb->($pkg);
		2423	1
		2424	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2425	}
1183		2426
		2427	warn "... nuking $pkg";
		2428	Symbol::delete_package $pkg;
		2429	}
		2430
1184	# unload all modules loaded from $LIBDIR	2431	warn "unloading all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2432	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2434
1188	$msg->("removing <$k>");	2435	warn "... unloading $k";
1189	delete $INC{$k};	2436	delete $INC{$k};
1190		2437
1191	$k =~ s/\.pm$//;	2438	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2439	$k =~ s/\//::/g;
1193		2440
…		…
1196	}	2443	}
1197		2444
1198	Symbol::delete_package $k;	2445	Symbol::delete_package $k;
1199	}	2446	}
1200		2447
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2448	warn "getting rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2449	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2451
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2452	warn "unloading cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2453	delete $INC{"cf.pm"};
1213		2454
1214	# don't, removes xs symbols, too,	2455	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2456	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2457	#Symbol::delete_package __PACKAGE__;
1217		2458
1218	# reload cf.pm	2459	warn "unload completed, starting to reload now";
		2460
1219	$msg->("reloading cf.pm");	2461	warn "reloading cf.pm";
1220	require cf;	2462	require cf;
		2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2464
1222	# load config and database again	2465	warn "loading config and database again";
1223	cf::cfg_load;	2466	cf::cfg_load;
1224	cf::db_load;	2467	cf::db_load;
1225		2468
1226	# load extensions	2469	warn "loading extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2470	cf::load_extensions;
1229		2471
1230	# reattach attachments to objects	2472	warn "reattaching attachments to objects/players";
1231	$msg->("reattach");
1232	_global_reattach;	2473	_global_reattach;
		2474	warn "reattaching attachments to maps";
		2475	reattach $_ for values %MAP;
		2476
		2477	warn "loading reloadable resources";
		2478	load_resources;
		2479
		2480	warn "restarting server ticker";
		2481
		2482	$TICK_WATCHER->start;
1233	};	2483	};
1234	$msg->($@) if $@;
1235		2484
1236	$msg->("reloaded");	2485	if ($@) {
		2486	warn $@;
		2487	warn "error while reloading, exiting.";
		2488	exit 1;
		2489	}
		2490
		2491	warn "reloaded";
1237	};	2492	};
1238		2493
1239	sub perl_reload() {	2494	our $RELOAD_WATCHER; # used only during reload
1240	_perl_reload {
1241	warn $_[0];
1242	print "$_[0]\n";
1243	};
1244	}
1245		2495
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2496	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2497	my ($who, $arg) = @_;
1250		2498
1251	if ($who->flag (FLAG_WIZ)) {	2499	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2500	$who->message ("reloading server.");
1253	warn $_[0];	2501
1254	$who->message ($_[0]);	2502	# doing reload synchronously and two reloads happen back-to-back,
		2503	# coro crashes during coro_state_free->destroy here.
		2504
		2505	$RELOAD_WATCHER ||= Event->timer (
		2506	reentrant => 0,
		2507	after => 0,
		2508	data => WF_AUTOCANCEL,
		2509	cb => sub {
		2510	reload;
		2511	undef $RELOAD_WATCHER;
		2512	},
1255	};	2513	);
1256	}	2514	}
1257	};	2515	};
1258		2516
1259	unshift @INC, $LIBDIR;	2517	unshift @INC, $LIBDIR;
1260		2518
		2519	my $bug_warning = 0;
		2520
1261	$TICK_WATCHER = Event->timer (	2521	$TICK_WATCHER = Event->timer (
		2522	reentrant => 0,
		2523	parked => 1,
1262	prio => 0,	2524	prio => 0,
1263	at => $NEXT_TICK || 1,	2525	at => $NEXT_TICK || $TICK,
1264	data => WF_AUTOCANCEL,	2526	data => WF_AUTOCANCEL,
1265	cb => sub {	2527	cb => sub {
		2528	if ($Coro::current != $Coro::main) {
		2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2530	unless ++$bug_warning > 10;
		2531	return;
		2532	}
		2533
		2534	$NOW = Event::time;
		2535
1266	cf::server_tick; # one server iteration	2536	cf::server_tick; # one server iteration
1267		2537	$RUNTIME += $TICK;
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	2538	$NEXT_TICK += $TICK;
1270		2539
		2540	$WAIT_FOR_TICK->broadcast;
		2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2542
		2543	Event::sweep;
		2544	Coro::cede_notself;
		2545
		2546	# my $AFTER = Event::time;
		2547	# warn $AFTER - $NOW;#d#
		2548
1271	# if we are delayed by four ticks or more, skip them all	2549	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273		2551
1274	$TICK_WATCHER->at ($NEXT_TICK);	2552	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	2553	$TICK_WATCHER->start;
1276	},	2554	},
1277	);	2555	);
1278		2556
1279	IO::AIO::max_poll_time $TICK * 0.2;	2557	IO::AIO::max_poll_time $TICK * 0.1;
1280		2558
		2559	undef $Coro::AIO::WATCHER;
		2560	$AIO_POLL_WATCHER = Event->io (
		2561	reentrant => 0,
1281	Event->io (fd => IO::AIO::poll_fileno,	2562	fd => IO::AIO::poll_fileno,
1282	poll => 'r',	2563	poll => 'r',
1283	prio => 5,	2564	prio => 6,
1284	data => WF_AUTOCANCEL,	2565	data => WF_AUTOCANCEL,
1285	cb => \&IO::AIO::poll_cb);	2566	cb => \&IO::AIO::poll_cb,
		2567	);
		2568
		2569	$WRITE_RUNTIME_WATCHER = Event->timer (
		2570	reentrant => 0,
		2571	data => WF_AUTOCANCEL,
		2572	after => 1,
		2573	interval => 10,
		2574	prio => 6, # keep it lowest so it acts like a watchdog
		2575	cb => Coro::unblock_sub {
		2576	write_runtime
		2577	or warn "ERROR: unable to write runtime file: $!";
		2578	},
		2579	);
		2580
		2581	END { cf::emergency_save }
1286		2582
1287	1	2583	1
1288		2584

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