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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.96 by root, Fri Dec 22 06:02:29 2006 UTC vs.
Revision 1.187 by root, Sat Jan 20 21:06:52 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 3.4 ();
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;
44		53
45	our %CFG;	54	our %CFG;
46		55
47	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
48		87
49	#############################################################################	88	#############################################################################
50		89
51	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
52		91
53	=over 4	92	=over 4
54		93
55	=item $cf::UPTIME	94	=item $cf::UPTIME
56		95
57	The timestamp of the server start (so not actually an uptime).	96	The timestamp of the server start (so not actually an uptime).
		97
		98	=item $cf::RUNTIME
		99
		100	The time this server has run, starts at 0 and is increased by $cf::TICK on
		101	every server tick.
58		102
59	=item $cf::LIBDIR	103	=item $cf::LIBDIR
60		104
61	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
62	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
63		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
64	=item $cf::TICK	112	=item $cf::TICK
65		113
66	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
67		115
68	=item %cf::CFG	116	=item %cf::CFG
69		117
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
72		127
73	=back	128	=back
74		129
75	=cut	130	=cut
76		131
77	BEGIN {	132	BEGIN {
78	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
80	$msg .= "\n"	137	$msg .= "\n"
81	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
82		139
83	print STDERR "cfperl: $msg";
84	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
85	};	141	};
86	}	142	}
87		143
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94		150
95	# we bless all objects into (empty) derived classes to force a method lookup	151	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	152	# within the Safe compartment.
97	for my $pkg (qw(	153	for my $pkg (qw(
98	cf::global	154	cf::global cf::attachable
99	cf::object cf::object::player	155	cf::object cf::object::player
100	cf::client cf::player	156	cf::client cf::player
101	cf::arch cf::living	157	cf::arch cf::living
102	cf::map cf::party cf::region	158	cf::map cf::party cf::region
103	)) {	159	)) {
…		…
107		163
108	$Event::DIED = sub {	164	$Event::DIED = sub {
109	warn "error in event callback: @_";	165	warn "error in event callback: @_";
110	};	166	};
111		167
112	my %ext_pkg;
113	my @exts;
114	my @hook;
115
116	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
117		169
118	=over 4	170	=over 4
119		171
		172	=item dumpval $ref
		173
120	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
121		194
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
123		196
124	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
125		198
…		…
139	=cut	212	=cut
140		213
141	sub to_json($) {	214	sub to_json($) {
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
143	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
		217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
		358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		359	and return;
		360
		361	aio_fsync $fh
		362	and return;
		363
		364	close $fh
		365	or return;
		366
		367	aio_rename "$runtime~", $runtime
		368	and return;
		369
		370	1
144	}	371	}
145		372
146	=back	373	=back
147		374
148	=cut	375	=cut
…		…
269	exception.	496	exception.
270		497
271	=cut	498	=cut
272		499
273	# the following variables are defined in .xs and must not be re-created	500	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	501	our @CB_GLOBAL = (); # registry for all global events
		502	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	503	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	504	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	505	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	507	our @CB_MAP = ();
280		508
281	my %attachment;	509	my %attachment;
		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
282		516
283	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
285		519
286	use sort 'stable';	520	use sort 'stable';
…		…
289		523
290	@{$registry->[$event]} = sort	524	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	525	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	526	@{$registry->[$event] || []}, $cb;
293	}	527	}
		528
		529	# hack
		530	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		531
295	# attach handles attaching event callbacks	532	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	533	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	534	# registry (== where the callback attaches to).
298	sub _attach {	535	sub _attach {
…		…
300		537
301	my $object_type;	538	my $object_type;
302	my $prio = 0;	539	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	540	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		541
		542	#TODO: get rid of this hack
		543	if ($attachable_klass{$klass}) {
		544	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		545	}
		546
305	while (@arg) {	547	while (@arg) {
306	my $type = shift @arg;	548	my $type = shift @arg;
307		549
308	if ($type eq "prio") {	550	if ($type eq "prio") {
309	$prio = shift @arg;	551	$prio = shift @arg;
…		…
384	my ($obj, $name) = @_;	626	my ($obj, $name) = @_;
385		627
386	exists $obj->{_attachment}{$name}	628	exists $obj->{_attachment}{$name}
387	}	629	}
388		630
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	631	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	632	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	633	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	634	(\\\@CB_$klass, KLASS_$klass)
393	}	635	}
394		636
…		…
447	=cut	689	=cut
448		690
449	#############################################################################	691	#############################################################################
450	# object support	692	# object support
451		693
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 {	694	sub reattach {
		695	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		699
467	my $registry = $obj->registry;	700	my $registry = $obj->registry;
468		701
469	@$registry = ();	702	@$registry = ();
470		703
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	704	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	713	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	714	}
482	}	715	}
483	}	716	}
484		717
485	sub object_freezer_save {	718	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	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	719	prio => -1000000,
		720	on_instantiate => sub {
		721	my ($obj, $data) = @_;
		722
		723	$data = from_json $data;
		724
		725	for (@$data) {
		726	my ($name, $args) = @$_;
		727
		728	$obj->attach ($name, %{$args || {} });
		729	}
		730	},
		731	on_reattach => \&reattach,
545	on_clone => sub {	732	on_clone => sub {
546	my ($src, $dst) = @_;	733	my ($src, $dst) = @_;
547		734
548	@{$dst->registry} = @{$src->registry};	735	@{$dst->registry} = @{$src->registry};
549		736
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	739	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	740	if exists $src->{_attachment};
554	},	741	},
555	);	742	);
556		743
		744	sub object_freezer_save {
		745	my ($filename, $rdata, $objs) = @_;
		746
		747	sync_job {
		748	if (length $$rdata) {
		749	warn sprintf "saving %s (%d,%d)\n",
		750	$filename, length $$rdata, scalar @$objs;
		751
		752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		753	chmod SAVE_MODE, $fh;
		754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		755	aio_fsync $fh;
		756	close $fh;
		757
		758	if (@$objs) {
		759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		760	chmod SAVE_MODE, $fh;
		761	my $data = Storable::nfreeze { version => 1, objs => $objs };
		762	aio_write $fh, 0, (length $data), $data, 0;
		763	aio_fsync $fh;
		764	close $fh;
		765	aio_rename "$filename.pst~", "$filename.pst";
		766	}
		767	} else {
		768	aio_unlink "$filename.pst";
		769	}
		770
		771	aio_rename "$filename~", $filename;
		772	} else {
		773	warn "FATAL: $filename~: $!\n";
		774	}
		775	} else {
		776	aio_unlink $filename;
		777	aio_unlink "$filename.pst";
		778	}
		779	}
		780	}
		781
		782	sub object_freezer_as_string {
		783	my ($rdata, $objs) = @_;
		784
		785	use Data::Dumper;
		786
		787	$$rdata . Dumper $objs
		788	}
		789
		790	sub object_thawer_load {
		791	my ($filename) = @_;
		792
		793	my ($data, $av);
		794
		795	(aio_load $filename, $data) >= 0
		796	or return;
		797
		798	unless (aio_stat "$filename.pst") {
		799	(aio_load "$filename.pst", $av) >= 0
		800	or return;
		801	$av = eval { (Storable::thaw $av)->{objs} };
		802	}
		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
		806	return ($data, $av);
		807	}
		808
557	#############################################################################	809	#############################################################################
558	# command handling &c	810	# command handling &c
559		811
560	=item cf::register_command $name => \&callback($ob,$args);	812	=item cf::register_command $name => \&callback($ob,$args);
561		813
…		…
583	=cut	835	=cut
584		836
585	sub register_extcmd {	837	sub register_extcmd {
586	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
587		839
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
592	}	841	}
593		842
594	cf::player->attach (	843	cf::player->attach (
595	on_command => sub {	844	on_command => sub {
596	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
609		858
610	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
611		860
612	if (ref $msg) {	861	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	865	}
617	}	866	}
618	} else {	867	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		870
622	cf::override;	871	cf::override;
623	},	872	},
624	);	873	);
625		874
626	sub register {
627	my ($base, $pkg) = @_;
628
629	#TODO
630	}
631
632	sub load_extension {	875	sub load_extension {
633	my ($path) = @_;	876	my ($path) = @_;
634		877
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
636	my $base = $1;	879	my $base = $1;
637	my $pkg = $1;	880	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
640		883
641	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
642		885
643	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
644	or die "$path: $!";	887	or die "$path: $!";
645		888
646	my $source =	889	my $source =
647	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
650	. "\n};\n1";	893	. "\n};\n1";
651		894
652	eval $source	895	unless (eval $source) {
653	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
654	: "extension disabled.\n";	897	: "extension disabled.\n";
655		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
656	push @exts, $pkg;	899	warn $@;
657	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
658		901	exit 1;
659	# no strict 'refs';	902	}
660	# @{"$pkg\::ISA"} = ext::;	903	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	# }	904	}
675		905
676	# remove commands	906	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	}	907	}
701		908
702	sub load_extensions {	909	sub load_extensions {
703	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	911	next unless -r $ext;
…		…
708	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
709	}	916	}
710	}	917	}
711		918
712	#############################################################################	919	#############################################################################
713	# load/save/clean perl data associated with a map
714		920
715	*cf::mapsupport::on_clean = sub {	921	=head2 CORE EXTENSIONS
		922
		923	Functions and methods that extend core crossfire objects.
		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
		931	=head3 cf::player
		932
		933	=over 4
		934
		935	=item cf::player::find $login
		936
		937	Returns the given player object, loading it if necessary (might block).
		938
		939	=cut
		940
		941	sub playerdir($) {
		942	cf::localdir
		943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
		1088	}
		1089
		1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1091
		1092	Sends an ext reply to the player.
		1093
		1094	=cut
		1095
		1096	sub ext_reply($$$%) {
		1097	my ($self, $id, %msg) = @_;
		1098
		1099	$msg{msgid} = $id;
		1100
		1101	$self->send ("ext " . cf::to_json \%msg);
		1102	}
		1103
		1104	package cf;
		1105
		1106	=back
		1107
		1108
		1109	=head3 cf::map
		1110
		1111	=over 4
		1112
		1113	=cut
		1114
		1115	package cf::map;
		1116
		1117	use Fcntl;
		1118	use Coro::AIO;
		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
		1124	our $MAX_RESET = 3600;
		1125	our $DEFAULT_RESET = 3000;
		1126
		1127	sub generate_random_map {
		1128	my ($self, $rmp) = @_;
		1129	# mit "rum" bekleckern, nicht
		1130	$self->_create_random_map (
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1268	}
		1269
		1270	# and all this just because we cannot iterate over
		1271	# all maps in C++...
		1272	sub change_all_map_light {
		1273	my ($change) = @_;
		1274
		1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
		1277	}
		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
		1287	sub load_header_from($) {
		1288	my ($self, $path) = @_;
		1289
		1290	utf8::encode $path;
		1291	aio_open $path, O_RDONLY, 0
		1292	or return;
		1293
		1294	$self->_load_header ($path)
		1295	or return;
		1296
		1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub load_header {
		1315	my ($self) = @_;
		1316
		1317	if ($self->load_temp) {
		1318	$self->last_access ((delete $self->{last_access})
		1319	|| $cf::RUNTIME); #d#
		1320	# safety
		1321	$self->{instantiate_time} = $cf::RUNTIME
		1322	if $self->{instantiate_time} > $cf::RUNTIME;
		1323	} else {
		1324	$self->load_orig
		1325	or return;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	1
		1334	}
		1335
		1336	sub find;
		1337	sub find {
		1338	my ($path, $origin) = @_;
		1339
		1340	$path = normalise $path, $origin && $origin->path;
		1341
		1342	cf::lock_wait "map_find:$path";
		1343
		1344	$cf::MAP{$path} || do {
		1345	my $guard = cf::lock_acquire "map_find:$path";
		1346	my $map = new_from_path cf::map $path
		1347	or return;
		1348
		1349	$map->{last_save} = $cf::RUNTIME;
		1350
		1351	$map->load_header
		1352	or return;
		1353
		1354	if ($map->should_reset) {
		1355	# doing this can freeze the server in a sync job, obviously
		1356	#$cf::WAIT_FOR_TICK->wait;
		1357	$map->reset;
		1358	undef $guard;
		1359	$map = find $path
		1360	or return;
		1361	}
		1362
		1363	$cf::MAP{$path} = $map
		1364	}
		1365	}
		1366
		1367	sub load {
		1368	my ($self) = @_;
		1369
		1370	my $path = $self->{path};
		1371	my $guard = cf::lock_acquire "map_load:$path";
		1372
		1373	return if $self->in_memory != cf::MAP_SWAPPED;
		1374
		1375	$self->in_memory (cf::MAP_LOADING);
		1376
		1377	$self->alloc;
		1378	$self->_load_objects ($self->{load_path}, 1)
		1379	or return;
		1380
		1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1382	if delete $self->{load_original};
		1383
		1384	if (my $uniq = $self->uniq_path) {
		1385	utf8::encode $uniq;
		1386	if (aio_open $uniq, O_RDONLY, 0) {
		1387	$self->clear_unique_items;
		1388	$self->_load_objects ($uniq, 0);
		1389	}
		1390	}
		1391
		1392	Coro::cede;
		1393
		1394	# now do the right thing for maps
		1395	$self->link_multipart_objects;
		1396
		1397	unless ($self->{deny_activate}) {
		1398	$self->decay_objects;
		1399	$self->fix_auto_apply;
		1400	$self->update_buttons;
		1401	Coro::cede;
		1402	$self->set_darkness_map;
		1403	$self->difficulty ($self->estimate_difficulty)
		1404	unless $self->difficulty;
		1405	Coro::cede;
		1406	$self->activate;
		1407	}
		1408
		1409	$self->in_memory (cf::MAP_IN_MEMORY);
		1410	}
		1411
		1412	sub customise_for {
		1413	my ($self, $ob) = @_;
		1414
		1415	return find "~" . $ob->name . "/" . $self->{path}
		1416	if $self->per_player;
		1417
		1418	$self
		1419	}
		1420
		1421	# find and load all maps in the 3x3 area around a map
		1422	sub load_diag {
716	my ($map) = @_;	1423	my ($map) = @_;
717		1424
718	my $path = $map->tmpname;	1425	my @diag; # diagonal neighbours
719	defined $path or return;
720		1426
721	unlink "$path.pst";	1427	for (0 .. 3) {
722	};	1428	my $neigh = $map->tile_path ($_)
		1429	or next;
		1430	$neigh = find $neigh, $map
		1431	or next;
		1432	$neigh->load;
723		1433
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1436	}
725		1437
726	#############################################################################	1438	for (@diag) {
727	# load/save perl data associated with player->ob objects	1439	my $neigh = find @$_
728		1440	or next;
729	sub all_objects(@) {	1441	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1442	}
731	}	1443	}
732		1444
733	# TODO: compatibility cruft, remove when no longer needed	1445	sub find_sync {
734	cf::player->attach (	1446	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1447
738	for my $o (all_objects $pl->ob) {	1448	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1449	}
740	$o->set_ob_key_value ("_perl_data");
741		1450
742	%$o = %{ Storable::thaw pack "H*", $value };	1451	sub do_load_sync {
		1452	my ($map) = @_;
		1453
		1454	cf::sync_job { $map->load };
		1455	}
		1456
		1457	our %MAP_PREFETCH;
		1458	our $MAP_PREFETCHER = undef;
		1459
		1460	sub find_async {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->{path};
		1464
		1465	if (my $map = $cf::MAP{$path}) {
		1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1467	}
		1468
		1469	undef $MAP_PREFETCH{$path};
		1470	$MAP_PREFETCHER ||= cf::async {
		1471	while (%MAP_PREFETCH) {
		1472	for my $path (keys %MAP_PREFETCH) {
		1473	my $map = find $path
		1474	or next;
		1475	$map->load;
		1476
		1477	delete $MAP_PREFETCH{$path};
743	}	1478	}
744	}	1479	}
		1480	undef $MAP_PREFETCHER;
		1481	};
		1482
		1483	()
		1484	}
		1485
		1486	sub save {
		1487	my ($self) = @_;
		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
		1491	$self->{last_save} = $cf::RUNTIME;
		1492
		1493	return unless $self->dirty;
		1494
		1495	my $save = $self->save_path; utf8::encode $save;
		1496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1497
		1498	$self->{load_path} = $save;
		1499
		1500	return if $self->{deny_save};
		1501
		1502	local $self->{last_access} = $self->last_access;#d#
		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
		1507
		1508	if ($uniq) {
		1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1511	} else {
		1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1513	}
746	);	1514	}
747		1515
748	#############################################################################	1516	sub swap_out {
		1517	my ($self) = @_;
749		1518
750	=head2 CORE EXTENSIONS	1519	# save first because save cedes
		1520	$self->save;
751		1521
752	Functions and methods that extend core crossfire objects.	1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1523
754	=head3 cf::player	1524	return if $self->players;
		1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1526	return if $self->{deny_save};
		1527
		1528	$self->clear;
		1529	$self->in_memory (cf::MAP_SWAPPED);
		1530	}
		1531
		1532	sub reset_at {
		1533	my ($self) = @_;
		1534
		1535	# TODO: safety, remove and allow resettable per-player maps
		1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1537	return 1e99 if $self->{deny_reset};
		1538
		1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1541
		1542	$time + $to
		1543	}
		1544
		1545	sub should_reset {
		1546	my ($self) = @_;
		1547
		1548	$self->reset_at <= $cf::RUNTIME
		1549	}
		1550
		1551	sub reset {
		1552	my ($self) = @_;
		1553
		1554	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1555
		1556	return if $self->players;
		1557	return if $self->isa ("ext::map_per_player");#d#
		1558
		1559	warn "resetting map ", $self->path;#d#
		1560
		1561	delete $cf::MAP{$self->path};
		1562
		1563	$self->in_memory (cf::MAP_SWAPPED);
		1564	$self->clear;
		1565
		1566	$_->clear_links_to ($self) for values %cf::MAP;
		1567
		1568	$self->unlink_save;
		1569	$self->destroy;
		1570	}
		1571
		1572	my $nuke_counter = "aaaa";
		1573
		1574	sub nuke {
		1575	my ($self) = @_;
		1576
		1577	delete $cf::MAP{$self->path};
		1578
		1579	$self->unlink_save;
		1580
		1581	bless $self, "cf::map";
		1582	delete $self->{deny_reset};
		1583	$self->{deny_save} = 1;
		1584	$self->reset_timeout (1);
		1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1586
		1587	$cf::MAP{$self->path} = $self;
		1588
		1589	$self->reset; # polite request, might not happen
		1590	}
		1591
		1592	=item cf::map::unique_maps
		1593
		1594	Returns an arrayref of paths of all shared maps that have
		1595	instantiated unique items. May block.
		1596
		1597	=cut
		1598
		1599	sub unique_maps() {
		1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.pst$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	s/\.map$//;
		1611	push @paths, $_;
		1612	}
		1613
		1614	\@paths
		1615	}
		1616
		1617	package cf;
		1618
		1619	=back
		1620
		1621	=head3 cf::object
		1622
		1623	=cut
		1624
		1625	package cf::object;
755		1626
756	=over 4	1627	=over 4
757		1628
758	=item cf::player::exists $login	1629	=item $ob->inv_recursive
759		1630
760	Returns true when the given account exists.	1631	Returns the inventory of the object _and_ their inventories, recursively.
761		1632
762	=cut	1633	=cut
763		1634
764	sub cf::player::exists($) {	1635	sub inv_recursive_;
765	cf::player::find $_[0]	1636	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1637	map { $_, inv_recursive_ $_->inv } @_
767	}	1638	}
768		1639
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1640	sub inv_recursive {
770		1641	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	}	1642	}
		1643
		1644	package cf;
782		1645
783	=back	1646	=back
784		1647
785	=head3 cf::object::player	1648	=head3 cf::object::player
786		1649
…		…
824	(ref $cf::CFG{"may_$access"}	1687	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1688	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1689	: $cf::CFG{"may_$access"})
827	}	1690	}
828		1691
		1692	=item $player_object->enter_link
		1693
		1694	Freezes the player and moves him/her to a special map (C<{link}>).
		1695
		1696	The player should be reasonably safe there for short amounts of time. You
		1697	I<MUST> call C<leave_link> as soon as possible, though.
		1698
		1699	Will never block.
		1700
		1701	=item $player_object->leave_link ($map, $x, $y)
		1702
		1703	Moves the player out of the special C<{link}> map onto the specified
		1704	map. If the map is not valid (or omitted), the player will be moved back
		1705	to the location he/she was before the call to C<enter_link>, or, if that
		1706	fails, to the emergency map position.
		1707
		1708	Might block.
		1709
		1710	=cut
		1711
		1712	sub link_map {
		1713	unless ($LINK_MAP) {
		1714	$LINK_MAP = cf::map::find "{link}"
		1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1716	$LINK_MAP->load;
		1717	}
		1718
		1719	$LINK_MAP
		1720	}
		1721
		1722	sub cf::object::player::enter_link {
		1723	my ($self) = @_;
		1724
		1725	$self->deactivate_recursive;
		1726
		1727	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1728
		1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1730	if $self->map;
		1731
		1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1733	}
		1734
		1735	sub cf::object::player::leave_link {
		1736	my ($self, $map, $x, $y) = @_;
		1737
		1738	my $link_pos = delete $self->{_link_pos};
		1739
		1740	unless ($map) {
		1741	# restore original map position
		1742	($map, $x, $y) = @{ $link_pos || [] };
		1743	$map = cf::map::find $map;
		1744
		1745	unless ($map) {
		1746	($map, $x, $y) = @$EMERGENCY_POSITION;
		1747	$map = cf::map::find $map
		1748	or die "FATAL: cannot load emergency map\n";
		1749	}
		1750	}
		1751
		1752	($x, $y) = (-1, -1)
		1753	unless (defined $x) && (defined $y);
		1754
		1755	# use -1 or undef as default coordinates, not 0, 0
		1756	($x, $y) = ($map->enter_x, $map->enter_y)
		1757	if $x <=0 && $y <= 0;
		1758
		1759	$map->load;
		1760	$map->load_diag;
		1761
		1762	return unless $self->contr->active;
		1763	$self->activate_recursive;
		1764	$self->enter_map ($map, $x, $y);
		1765	}
		1766
		1767	cf::player->attach (
		1768	on_logout => sub {
		1769	my ($pl) = @_;
		1770
		1771	# abort map switching before logout
		1772	if ($pl->ob->{_link_pos}) {
		1773	cf::sync_job {
		1774	$pl->ob->leave_link
		1775	};
		1776	}
		1777	},
		1778	on_login => sub {
		1779	my ($pl) = @_;
		1780
		1781	# try to abort aborted map switching on player login :)
		1782	# should happen only on crashes
		1783	if ($pl->ob->{_link_pos}) {
		1784	$pl->ob->enter_link;
		1785	(async {
		1786	# we need this sleep as the login has a concurrent enter_exit running
		1787	# and this sleep increases chances of the player not ending up in scorn
		1788	$pl->ob->reply (undef,
		1789	"There was an internal problem at your last logout, "
		1790	. "the server will try to bring you to your intended destination in a second.",
		1791	cf::NDI_RED);
		1792	Coro::Timer::sleep 1;
		1793	$pl->ob->leave_link;
		1794	})->prio (2);
		1795	}
		1796	},
		1797	);
		1798
		1799	=item $player_object->goto ($path, $x, $y)
		1800
		1801	=cut
		1802
		1803	sub cf::object::player::goto {
		1804	my ($self, $path, $x, $y) = @_;
		1805
		1806	$self->enter_link;
		1807
		1808	(async {
		1809	my $map = cf::map::find $path;
		1810	$map = $map->customise_for ($self) if $map;
		1811
		1812	# warn "entering ", $map->path, " at ($x, $y)\n"
		1813	# if $map;
		1814
		1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1816
		1817	$self->leave_link ($map, $x, $y);
		1818	})->prio (1);
		1819	}
		1820
		1821	=item $player_object->enter_exit ($exit_object)
		1822
		1823	=cut
		1824
		1825	sub parse_random_map_params {
		1826	my ($spec) = @_;
		1827
		1828	my $rmp = { # defaults
		1829	xsize => (cf::rndm 15, 40),
		1830	ysize => (cf::rndm 15, 40),
		1831	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1832	#layout => string,
		1833	};
		1834
		1835	for (split /\n/, $spec) {
		1836	my ($k, $v) = split /\s+/, $_, 2;
		1837
		1838	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1839	}
		1840
		1841	$rmp
		1842	}
		1843
		1844	sub prepare_random_map {
		1845	my ($exit) = @_;
		1846
		1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1848
		1849	# all this does is basically replace the /! path by
		1850	# a new random map path (?random/...) with a seed
		1851	# that depends on the exit object
		1852
		1853	my $rmp = parse_random_map_params $exit->msg;
		1854
		1855	if ($exit->map) {
		1856	$rmp->{region} = $exit->map->region_name;
		1857	$rmp->{origin_map} = $exit->map->path;
		1858	$rmp->{origin_x} = $exit->x;
		1859	$rmp->{origin_y} = $exit->y;
		1860	}
		1861
		1862	$rmp->{random_seed} ||= $exit->random_seed;
		1863
		1864	my $data = cf::to_json $rmp;
		1865	my $md5 = Digest::MD5::md5_hex $data;
		1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1867
		1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1869	aio_write $fh, 0, (length $data), $data, 0;
		1870	undef $fh;
		1871	aio_rename "$meta~", $meta;
		1872
		1873	$exit->slaying ("?random/$md5");
		1874	$exit->msg (undef);
		1875	}
		1876	}
		1877
		1878	sub cf::object::player::enter_exit {
		1879	my ($self, $exit) = @_;
		1880
		1881	return unless $self->type == cf::PLAYER;
		1882
		1883	$self->enter_link;
		1884
		1885	(async {
		1886	$self->deactivate_recursive; # just to be sure
		1887	unless (eval {
		1888	prepare_random_map $exit
		1889	if $exit->slaying eq "/!";
		1890
		1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1893
		1894	1;
		1895	}) {
		1896	$self->message ("Something went wrong deep within the crossfire server. "
		1897	. "I'll try to bring you back to the map you were before. "
		1898	. "Please report this to the dungeon master!",
		1899	cf::NDI_UNIQUE | cf::NDI_RED);
		1900
		1901	warn "ERROR in enter_exit: $@";
		1902	$self->leave_link;
		1903	}
		1904	})->prio (1);
		1905	}
		1906
829	=head3 cf::client	1907	=head3 cf::client
830		1908
831	=over 4	1909	=over 4
832		1910
833	=item $client->send_drawinfo ($text, $flags)	1911	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	1954	on_reply => sub {
877	my ($ns, $msg) = @_;	1955	my ($ns, $msg) = @_;
878		1956
879	# this weird shuffling is so that direct followup queries	1957	# this weird shuffling is so that direct followup queries
880	# get handled first	1958	# get handled first
881	my $queue = delete $ns->{query_queue};	1959	my $queue = delete $ns->{query_queue}
		1960	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		1961
883	(shift @$queue)->[1]->($msg);	1962	(shift @$queue)->[1]->($msg);
884		1963
885	push @{ $ns->{query_queue} }, @$queue;	1964	push @{ $ns->{query_queue} }, @$queue;
886		1965
887	if (@{ $ns->{query_queue} } == @$queue) {	1966	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	1967	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	1968	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	1969	} else {
891	$ns->state (ST_PLAYING);	1970	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	1971	}
893	}	1972	}
894	},	1973	},
895	);	1974	);
896		1975
897	=item $client->coro (\&cb)	1976	=item $client->async (\&cb)
898		1977
899	Create a new coroutine, running the specified callback. The coroutine will	1978	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	1979	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	1980	or loss of connection).
902		1981
903	=cut	1982	=cut
904		1983
905	sub cf::client::coro {	1984	sub cf::client::async {
906	my ($self, $cb) = @_;	1985	my ($self, $cb) = @_;
907		1986
908	my $coro; $coro = async {	1987	my $coro = &Coro::async ($cb);
909	eval {	1988
910	$cb->();	1989	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	warn "cancel myself\n";#d#
914	delete $self->{_coro}{$coro+0};	1990	delete $self->{_coro}{$coro+0};
915	};	1991	});
916		1992
917	$self->{_coro}{$coro+0} = $coro;	1993	$self->{_coro}{$coro+0} = $coro;
		1994
		1995	$coro
918	}	1996	}
919		1997
920	cf::client->attach (	1998	cf::client->attach (
921	on_destroy => sub {	1999	on_destroy => sub {
922	my ($ns) = @_;	2000	my ($ns) = @_;
923		2001
924	warn "cancel $_" for values %{ $ns->{_coro} || {} };#d#
925	$_->cancel for values %{ $ns->{_coro} || {} };	2002	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
926	},	2003	},
927	);	2004	);
928		2005
929	=back	2006	=back
930		2007
…		…
1087		2164
1088	{	2165	{
1089	my $path = cf::localdir . "/database.pst";	2166	my $path = cf::localdir . "/database.pst";
1090		2167
1091	sub db_load() {	2168	sub db_load() {
1092	warn "loading database $path\n";#d# remove later
1093	$DB = stat $path ? Storable::retrieve $path : { };	2169	$DB = stat $path ? Storable::retrieve $path : { };
1094	}	2170	}
1095		2171
1096	my $pid;	2172	my $pid;
1097		2173
1098	sub db_save() {	2174	sub db_save() {
1099	warn "saving database $path\n";#d# remove later
1100	waitpid $pid, 0 if $pid;	2175	waitpid $pid, 0 if $pid;
1101	if (0 == ($pid = fork)) {	2176	if (0 == ($pid = fork)) {
1102	$DB->{_meta}{version} = 1;	2177	$DB->{_meta}{version} = 1;
1103	Storable::nstore $DB, "$path~";	2178	Storable::nstore $DB, "$path~";
1104	rename "$path~", $path;	2179	rename "$path~", $path;
…		…
1111	sub db_sync() {	2186	sub db_sync() {
1112	db_save if $dirty;	2187	db_save if $dirty;
1113	undef $dirty;	2188	undef $dirty;
1114	}	2189	}
1115		2190
1116	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1117	db_sync;	2192	db_sync;
1118	});	2193	});
1119		2194
1120	sub db_dirty() {	2195	sub db_dirty() {
1121	$dirty = 1;	2196	$dirty = 1;
…		…
1152	open my $fh, "<:utf8", cf::confdir . "/config"	2227	open my $fh, "<:utf8", cf::confdir . "/config"
1153	or return;	2228	or return;
1154		2229
1155	local $/;	2230	local $/;
1156	*CFG = YAML::Syck::Load <$fh>;	2231	*CFG = YAML::Syck::Load <$fh>;
		2232
		2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2234
		2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2237
		2238	if (exists $CFG{mlockall}) {
		2239	eval {
		2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2241	and die "WARNING: m(un)lockall failed: $!\n";
		2242	};
		2243	warn $@ if $@;
		2244	}
1157	}	2245	}
1158		2246
1159	sub main {	2247	sub main {
		2248	# we must not ever block the main coroutine
		2249	local $Coro::idle = sub {
		2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2251	(async {
		2252	Event::one_event;
		2253	})->prio (Coro::PRIO_MAX);
		2254	};
		2255
1160	cfg_load;	2256	cfg_load;
1161	db_load;	2257	db_load;
1162	load_extensions;	2258	load_extensions;
		2259
		2260	$TICK_WATCHER->start;
1163	Event::loop;	2261	Event::loop;
1164	}	2262	}
1165		2263
1166	#############################################################################	2264	#############################################################################
1167	# initialisation	2265	# initialisation and cleanup
1168		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
		2308
1169	sub _perl_reload(&) {	2309	sub reload() {
1170	my ($msg) = @_;	2310	# can/must only be called in main
		2311	if ($Coro::current != $Coro::main) {
		2312	warn "can only reload from main coroutine";
		2313	return;
		2314	}
1171		2315
1172	$msg->("reloading...");	2316	warn "reloading...";
		2317
		2318	warn "cancelling server ticker";
		2319	$TICK_WATCHER->cancel;
		2320
		2321	cf::emergency_save;
1173		2322
1174	eval {	2323	eval {
1175	# cancel all watchers	2324	# if anything goes wrong in here, we should simply crash as we already saved
		2325
		2326	warn "syncing database to disk";
		2327	cf::db_sync;
		2328
		2329	warn "cancelling all WF_AUTOCANCEL watchers";
1176	for (Event::all_watchers) {	2330	for (Event::all_watchers) {
1177	$_->cancel if $_->data & WF_AUTOCANCEL;	2331	$_->cancel if $_->data & WF_AUTOCANCEL;
1178	}	2332	}
1179		2333
1180	# unload all extensions	2334	warn "flushing outstanding aio requests";
1181	for (@exts) {	2335	for (;;) {
1182	$msg->("unloading <$_>");	2336	IO::AIO::flush;
1183	unload_extension $_;	2337	Coro::cede;
		2338	last unless IO::AIO::nreqs;
		2339	warn "iterate...";
		2340	}
		2341
		2342	warn "cancelling all extension coros";
		2343	$_->cancel for values %EXT_CORO;
		2344	%EXT_CORO = ();
		2345
		2346	warn "removing commands";
		2347	%COMMAND = ();
		2348
		2349	warn "removing ext commands";
		2350	%EXTCMD = ();
		2351
		2352	warn "unloading/nuking all extensions";
		2353	for my $pkg (@EXTS) {
		2354	warn "... unloading $pkg";
		2355
		2356	if (my $cb = $pkg->can ("unload")) {
		2357	eval {
		2358	$cb->($pkg);
		2359	1
		2360	} or warn "$pkg unloaded, but with errors: $@";
1184	}	2361	}
1185		2362
		2363	warn "... nuking $pkg";
		2364	Symbol::delete_package $pkg;
		2365	}
		2366
1186	# unload all modules loaded from $LIBDIR	2367	warn "unloading all perl modules loaded from $LIBDIR";
1187	while (my ($k, $v) = each %INC) {	2368	while (my ($k, $v) = each %INC) {
1188	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1189		2370
1190	$msg->("removing <$k>");	2371	warn "... unloading $k";
1191	delete $INC{$k};	2372	delete $INC{$k};
1192		2373
1193	$k =~ s/\.pm$//;	2374	$k =~ s/\.pm$//;
1194	$k =~ s/\//::/g;	2375	$k =~ s/\//::/g;
1195		2376
…		…
1198	}	2379	}
1199		2380
1200	Symbol::delete_package $k;	2381	Symbol::delete_package $k;
1201	}	2382	}
1202		2383
1203	# sync database to disk
1204	cf::db_sync;
1205
1206	# get rid of safe::, as good as possible	2384	warn "getting rid of safe::, as good as possible";
1207	Symbol::delete_package "safe::$_"	2385	Symbol::delete_package "safe::$_"
1208	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1209		2387
1210	# remove register_script_function callbacks
1211	# TODO
1212
1213	# unload cf.pm "a bit"	2388	warn "unloading cf.pm \"a bit\"";
1214	delete $INC{"cf.pm"};	2389	delete $INC{"cf.pm"};
1215		2390
1216	# don't, removes xs symbols, too,	2391	# don't, removes xs symbols, too,
1217	# and global variables created in xs	2392	# and global variables created in xs
1218	#Symbol::delete_package __PACKAGE__;	2393	#Symbol::delete_package __PACKAGE__;
1219		2394
1220	# reload cf.pm	2395	warn "unload completed, starting to reload now";
		2396
1221	$msg->("reloading cf.pm");	2397	warn "reloading cf.pm";
1222	require cf;	2398	require cf;
		2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1223		2400
1224	# load config and database again	2401	warn "loading config and database again";
1225	cf::cfg_load;	2402	cf::cfg_load;
1226	cf::db_load;	2403	cf::db_load;
1227		2404
1228	# load extensions	2405	warn "loading extensions";
1229	$msg->("load extensions");
1230	cf::load_extensions;	2406	cf::load_extensions;
1231		2407
1232	# reattach attachments to objects	2408	warn "reattaching attachments to objects/players";
1233	$msg->("reattach");
1234	_global_reattach;	2409	_global_reattach;
		2410	warn "reattaching attachments to maps";
		2411	reattach $_ for values %MAP;
		2412
		2413	warn "restarting server ticker";
		2414
		2415	$TICK_WATCHER->start;
1235	};	2416	};
1236	$msg->($@) if $@;
1237		2417
1238	$msg->("reloaded");	2418	if ($@) {
		2419	warn $@;
		2420	warn "error while reloading, exiting.";
		2421	exit 1;
		2422	}
		2423
		2424	warn "reloaded";
1239	};	2425	};
1240		2426
1241	sub perl_reload() {	2427	our $RELOAD_WATCHER; # used only during reload
1242	_perl_reload {
1243	warn $_[0];
1244	print "$_[0]\n";
1245	};
1246	}
1247		2428
1248	register "<global>", __PACKAGE__;
1249
1250	register_command "perl-reload" => sub {	2429	register_command "reload" => sub {
1251	my ($who, $arg) = @_;	2430	my ($who, $arg) = @_;
1252		2431
1253	if ($who->flag (FLAG_WIZ)) {	2432	if ($who->flag (FLAG_WIZ)) {
1254	_perl_reload {	2433	$who->message ("reloading server.");
1255	warn $_[0];	2434
1256	$who->message ($_[0]);	2435	# doing reload synchronously and two reloads happen back-to-back,
		2436	# coro crashes during coro_state_free->destroy here.
		2437
		2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
		2439	reload;
		2440	undef $RELOAD_WATCHER;
1257	};	2441	});
1258	}	2442	}
1259	};	2443	};
1260		2444
1261	unshift @INC, $LIBDIR;	2445	unshift @INC, $LIBDIR;
1262		2446
		2447	my $bug_warning = 0;
		2448
1263	$TICK_WATCHER = Event->timer (	2449	$TICK_WATCHER = Event->timer (
		2450	reentrant => 0,
		2451	parked => 1,
1264	prio => 0,	2452	prio => 0,
1265	at => $NEXT_TICK || 1,	2453	at => $NEXT_TICK || $TICK,
1266	data => WF_AUTOCANCEL,	2454	data => WF_AUTOCANCEL,
1267	cb => sub {	2455	cb => sub {
		2456	if ($Coro::current != $Coro::main) {
		2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2458	unless ++$bug_warning > 10;
		2459	return;
		2460	}
		2461
		2462	$NOW = Event::time;
		2463
1268	cf::server_tick; # one server iteration	2464	cf::server_tick; # one server iteration
1269		2465	$RUNTIME += $TICK;
1270	my $NOW = Event::time;
1271	$NEXT_TICK += $TICK;	2466	$NEXT_TICK += $TICK;
1272		2467
		2468	$WAIT_FOR_TICK->broadcast;
		2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2470
1273	# if we are delayed by four ticks or more, skip them all	2471	# if we are delayed by four ticks or more, skip them all
1274	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1275		2473
1276	$TICK_WATCHER->at ($NEXT_TICK);	2474	$TICK_WATCHER->at ($NEXT_TICK);
1277	$TICK_WATCHER->start;	2475	$TICK_WATCHER->start;
1278	},	2476	},
1279	);	2477	);
1280		2478
1281	IO::AIO::max_poll_time $TICK * 0.2;	2479	IO::AIO::max_poll_time $TICK * 0.2;
1282		2480
		2481	$AIO_POLL_WATCHER = Event->io (
1283	Event->io (fd => IO::AIO::poll_fileno,	2482	fd => IO::AIO::poll_fileno,
1284	poll => 'r',	2483	poll => 'r',
1285	prio => 5,	2484	prio => 5,
1286	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
1287	cb => \&IO::AIO::poll_cb);	2486	cb => \&IO::AIO::poll_cb,
		2487	);
		2488
		2489	$WRITE_RUNTIME_WATCHER = Event->timer (
		2490	data => WF_AUTOCANCEL,
		2491	after => 1,
		2492	interval => 10,
		2493	prio => 6, # keep it lowest so it acts like a watchdog
		2494	cb => Coro::unblock_sub {
		2495	write_runtime
		2496	or warn "ERROR: unable to write runtime file: $!";
		2497	},
		2498	);
		2499
		2500	END { cf::emergency_save }
1288		2501
1289	1	2502	1
1290		2503

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