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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 1.188 by root, Sat Jan 20 23:30:16 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_header_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_header_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub prepare_temp {
		1315	my ($self) = @_;
		1316
		1317	$self->last_access ((delete $self->{last_access})
		1318	|| $cf::RUNTIME); #d#
		1319	# safety
		1320	$self->{instantiate_time} = $cf::RUNTIME
		1321	if $self->{instantiate_time} > $cf::RUNTIME;
		1322	}
		1323
		1324	sub prepare_orig {
		1325	my ($self) = @_;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	sub load_header {
		1334	my ($self) = @_;
		1335
		1336	if ($self->load_header_temp) {
		1337	$self->prepare_temp;
		1338	} else {
		1339	$self->load_header_orig
		1340	or return;
		1341	$self->prepare_orig;
		1342	}
		1343
		1344	1
		1345	}
		1346
		1347	sub find;
		1348	sub find {
		1349	my ($path, $origin) = @_;
		1350
		1351	$path = normalise $path, $origin && $origin->path;
		1352
		1353	cf::lock_wait "map_find:$path";
		1354
		1355	$cf::MAP{$path} || do {
		1356	my $guard = cf::lock_acquire "map_find:$path";
		1357	my $map = new_from_path cf::map $path
		1358	or return;
		1359
		1360	$map->{last_save} = $cf::RUNTIME;
		1361
		1362	$map->load_header
		1363	or return;
		1364
		1365	if ($map->should_reset) {
		1366	# doing this can freeze the server in a sync job, obviously
		1367	#$cf::WAIT_FOR_TICK->wait;
		1368	$map->reset;
		1369	undef $guard;
		1370	$map = find $path
		1371	or return;
		1372	}
		1373
		1374	$cf::MAP{$path} = $map
		1375	}
		1376	}
		1377
		1378	sub pre_load { }
		1379	sub post_load { }
		1380
		1381	sub load {
		1382	my ($self) = @_;
		1383
		1384	my $path = $self->{path};
		1385	my $guard = cf::lock_acquire "map_load:$path";
		1386
		1387	return if $self->in_memory != cf::MAP_SWAPPED;
		1388
		1389	$self->in_memory (cf::MAP_LOADING);
		1390
		1391	$self->alloc;
		1392
		1393	$self->pre_load;
		1394
		1395	$self->_load_objects ($self->{load_path}, 1)
		1396	or return;
		1397
		1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1399	if delete $self->{load_original};
		1400
		1401	if (my $uniq = $self->uniq_path) {
		1402	utf8::encode $uniq;
		1403	if (aio_open $uniq, O_RDONLY, 0) {
		1404	$self->clear_unique_items;
		1405	$self->_load_objects ($uniq, 0);
		1406	}
		1407	}
		1408
		1409	Coro::cede;
		1410
		1411	# now do the right thing for maps
		1412	$self->link_multipart_objects;
		1413
		1414	unless ($self->{deny_activate}) {
		1415	$self->decay_objects;
		1416	$self->fix_auto_apply;
		1417	$self->update_buttons;
		1418	Coro::cede;
		1419	$self->set_darkness_map;
		1420	$self->difficulty ($self->estimate_difficulty)
		1421	unless $self->difficulty;
		1422	Coro::cede;
		1423	$self->activate;
		1424	}
		1425
		1426	$self->post_load;
		1427
		1428	$self->in_memory (cf::MAP_IN_MEMORY);
		1429	}
		1430
		1431	sub customise_for {
		1432	my ($self, $ob) = @_;
		1433
		1434	return find "~" . $ob->name . "/" . $self->{path}
		1435	if $self->per_player;
		1436
		1437	$self
		1438	}
		1439
		1440	# find and load all maps in the 3x3 area around a map
		1441	sub load_diag {
716	my ($map) = @_;	1442	my ($map) = @_;
717		1443
718	my $path = $map->tmpname;	1444	my @diag; # diagonal neighbours
719	defined $path or return;
720		1445
721	unlink "$path.pst";	1446	for (0 .. 3) {
722	};	1447	my $neigh = $map->tile_path ($_)
		1448	or next;
		1449	$neigh = find $neigh, $map
		1450	or next;
		1451	$neigh->load;
723		1452
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1455	}
725		1456
726	#############################################################################	1457	for (@diag) {
727	# load/save perl data associated with player->ob objects	1458	my $neigh = find @$_
728		1459	or next;
729	sub all_objects(@) {	1460	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1461	}
731	}	1462	}
732		1463
733	# TODO: compatibility cruft, remove when no longer needed	1464	sub find_sync {
734	cf::player->attach (	1465	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1466
738	for my $o (all_objects $pl->ob) {	1467	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1468	}
740	$o->set_ob_key_value ("_perl_data");
741		1469
742	%$o = %{ Storable::thaw pack "H*", $value };	1470	sub do_load_sync {
		1471	my ($map) = @_;
		1472
		1473	cf::sync_job { $map->load };
		1474	}
		1475
		1476	our %MAP_PREFETCH;
		1477	our $MAP_PREFETCHER = undef;
		1478
		1479	sub find_async {
		1480	my ($path, $origin) = @_;
		1481
		1482	$path = normalise $path, $origin && $origin->{path};
		1483
		1484	if (my $map = $cf::MAP{$path}) {
		1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1486	}
		1487
		1488	undef $MAP_PREFETCH{$path};
		1489	$MAP_PREFETCHER ||= cf::async {
		1490	while (%MAP_PREFETCH) {
		1491	for my $path (keys %MAP_PREFETCH) {
		1492	my $map = find $path
		1493	or next;
		1494	$map->load;
		1495
		1496	delete $MAP_PREFETCH{$path};
743	}	1497	}
744	}	1498	}
		1499	undef $MAP_PREFETCHER;
		1500	};
		1501
		1502	()
		1503	}
		1504
		1505	sub save {
		1506	my ($self) = @_;
		1507
		1508	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1509
		1510	$self->{last_save} = $cf::RUNTIME;
		1511
		1512	return unless $self->dirty;
		1513
		1514	my $save = $self->save_path; utf8::encode $save;
		1515	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1516
		1517	$self->{load_path} = $save;
		1518
		1519	return if $self->{deny_save};
		1520
		1521	local $self->{last_access} = $self->last_access;#d#
		1522
		1523	cf::async {
		1524	$_->contr->save for $self->players;
		1525	};
		1526
		1527	if ($uniq) {
		1528	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1529	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1530	} else {
		1531	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1532	}
746	);	1533	}
747		1534
748	#############################################################################	1535	sub swap_out {
		1536	my ($self) = @_;
749		1537
750	=head2 CORE EXTENSIONS	1538	# save first because save cedes
		1539	$self->save;
751		1540
752	Functions and methods that extend core crossfire objects.	1541	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1542
754	=head3 cf::player	1543	return if $self->players;
		1544	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1545	return if $self->{deny_save};
		1546
		1547	$self->clear;
		1548	$self->in_memory (cf::MAP_SWAPPED);
		1549	}
		1550
		1551	sub reset_at {
		1552	my ($self) = @_;
		1553
		1554	# TODO: safety, remove and allow resettable per-player maps
		1555	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1556	return 1e99 if $self->{deny_reset};
		1557
		1558	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1559	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1560
		1561	$time + $to
		1562	}
		1563
		1564	sub should_reset {
		1565	my ($self) = @_;
		1566
		1567	$self->reset_at <= $cf::RUNTIME
		1568	}
		1569
		1570	sub reset {
		1571	my ($self) = @_;
		1572
		1573	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1574
		1575	return if $self->players;
		1576	return if $self->isa ("ext::map_per_player");#d#
		1577
		1578	warn "resetting map ", $self->path;#d#
		1579
		1580	delete $cf::MAP{$self->path};
		1581
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	$self->clear;
		1584
		1585	$_->clear_links_to ($self) for values %cf::MAP;
		1586
		1587	$self->unlink_save;
		1588	$self->destroy;
		1589	}
		1590
		1591	my $nuke_counter = "aaaa";
		1592
		1593	sub nuke {
		1594	my ($self) = @_;
		1595
		1596	delete $cf::MAP{$self->path};
		1597
		1598	$self->unlink_save;
		1599
		1600	bless $self, "cf::map";
		1601	delete $self->{deny_reset};
		1602	$self->{deny_save} = 1;
		1603	$self->reset_timeout (1);
		1604	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1605
		1606	$cf::MAP{$self->path} = $self;
		1607
		1608	$self->reset; # polite request, might not happen
		1609	}
		1610
		1611	=item cf::map::unique_maps
		1612
		1613	Returns an arrayref of paths of all shared maps that have
		1614	instantiated unique items. May block.
		1615
		1616	=cut
		1617
		1618	sub unique_maps() {
		1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1620	or return;
		1621
		1622	my @paths;
		1623
		1624	for (@$files) {
		1625	utf8::decode $_;
		1626	next if /\.pst$/;
		1627	next unless /^$PATH_SEP/o;
		1628
		1629	s/\.map$//;
		1630	push @paths, $_;
		1631	}
		1632
		1633	\@paths
		1634	}
		1635
		1636	package cf;
		1637
		1638	=back
		1639
		1640	=head3 cf::object
		1641
		1642	=cut
		1643
		1644	package cf::object;
755		1645
756	=over 4	1646	=over 4
757		1647
758	=item cf::player::exists $login	1648	=item $ob->inv_recursive
759		1649
760	Returns true when the given account exists.	1650	Returns the inventory of the object _and_ their inventories, recursively.
761		1651
762	=cut	1652	=cut
763		1653
764	sub cf::player::exists($) {	1654	sub inv_recursive_;
765	cf::player::find $_[0]	1655	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1656	map { $_, inv_recursive_ $_->inv } @_
767	}	1657	}
768		1658
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1659	sub inv_recursive {
770		1660	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	}	1661	}
		1662
		1663	package cf;
782		1664
783	=back	1665	=back
784		1666
785	=head3 cf::object::player	1667	=head3 cf::object::player
786		1668
…		…
824	(ref $cf::CFG{"may_$access"}	1706	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1707	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1708	: $cf::CFG{"may_$access"})
827	}	1709	}
828		1710
		1711	=item $player_object->enter_link
		1712
		1713	Freezes the player and moves him/her to a special map (C<{link}>).
		1714
		1715	The player should be reasonably safe there for short amounts of time. You
		1716	I<MUST> call C<leave_link> as soon as possible, though.
		1717
		1718	Will never block.
		1719
		1720	=item $player_object->leave_link ($map, $x, $y)
		1721
		1722	Moves the player out of the special C<{link}> map onto the specified
		1723	map. If the map is not valid (or omitted), the player will be moved back
		1724	to the location he/she was before the call to C<enter_link>, or, if that
		1725	fails, to the emergency map position.
		1726
		1727	Might block.
		1728
		1729	=cut
		1730
		1731	sub link_map {
		1732	unless ($LINK_MAP) {
		1733	$LINK_MAP = cf::map::find "{link}"
		1734	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1735	$LINK_MAP->load;
		1736	}
		1737
		1738	$LINK_MAP
		1739	}
		1740
		1741	sub cf::object::player::enter_link {
		1742	my ($self) = @_;
		1743
		1744	$self->deactivate_recursive;
		1745
		1746	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1747
		1748	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1749	if $self->map;
		1750
		1751	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1752	}
		1753
		1754	sub cf::object::player::leave_link {
		1755	my ($self, $map, $x, $y) = @_;
		1756
		1757	my $link_pos = delete $self->{_link_pos};
		1758
		1759	unless ($map) {
		1760	# restore original map position
		1761	($map, $x, $y) = @{ $link_pos || [] };
		1762	$map = cf::map::find $map;
		1763
		1764	unless ($map) {
		1765	($map, $x, $y) = @$EMERGENCY_POSITION;
		1766	$map = cf::map::find $map
		1767	or die "FATAL: cannot load emergency map\n";
		1768	}
		1769	}
		1770
		1771	($x, $y) = (-1, -1)
		1772	unless (defined $x) && (defined $y);
		1773
		1774	# use -1 or undef as default coordinates, not 0, 0
		1775	($x, $y) = ($map->enter_x, $map->enter_y)
		1776	if $x <=0 && $y <= 0;
		1777
		1778	$map->load;
		1779	$map->load_diag;
		1780
		1781	return unless $self->contr->active;
		1782	$self->activate_recursive;
		1783	$self->enter_map ($map, $x, $y);
		1784	}
		1785
		1786	cf::player->attach (
		1787	on_logout => sub {
		1788	my ($pl) = @_;
		1789
		1790	# abort map switching before logout
		1791	if ($pl->ob->{_link_pos}) {
		1792	cf::sync_job {
		1793	$pl->ob->leave_link
		1794	};
		1795	}
		1796	},
		1797	on_login => sub {
		1798	my ($pl) = @_;
		1799
		1800	# try to abort aborted map switching on player login :)
		1801	# should happen only on crashes
		1802	if ($pl->ob->{_link_pos}) {
		1803	$pl->ob->enter_link;
		1804	(async {
		1805	# we need this sleep as the login has a concurrent enter_exit running
		1806	# and this sleep increases chances of the player not ending up in scorn
		1807	$pl->ob->reply (undef,
		1808	"There was an internal problem at your last logout, "
		1809	. "the server will try to bring you to your intended destination in a second.",
		1810	cf::NDI_RED);
		1811	Coro::Timer::sleep 1;
		1812	$pl->ob->leave_link;
		1813	})->prio (2);
		1814	}
		1815	},
		1816	);
		1817
		1818	=item $player_object->goto ($path, $x, $y)
		1819
		1820	=cut
		1821
		1822	sub cf::object::player::goto {
		1823	my ($self, $path, $x, $y) = @_;
		1824
		1825	$self->enter_link;
		1826
		1827	(async {
		1828	my $map = cf::map::find $path;
		1829	$map = $map->customise_for ($self) if $map;
		1830
		1831	# warn "entering ", $map->path, " at ($x, $y)\n"
		1832	# if $map;
		1833
		1834	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1835
		1836	$self->leave_link ($map, $x, $y);
		1837	})->prio (1);
		1838	}
		1839
		1840	=item $player_object->enter_exit ($exit_object)
		1841
		1842	=cut
		1843
		1844	sub parse_random_map_params {
		1845	my ($spec) = @_;
		1846
		1847	my $rmp = { # defaults
		1848	xsize => (cf::rndm 15, 40),
		1849	ysize => (cf::rndm 15, 40),
		1850	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1851	#layout => string,
		1852	};
		1853
		1854	for (split /\n/, $spec) {
		1855	my ($k, $v) = split /\s+/, $_, 2;
		1856
		1857	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1858	}
		1859
		1860	$rmp
		1861	}
		1862
		1863	sub prepare_random_map {
		1864	my ($exit) = @_;
		1865
		1866	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1867
		1868	# all this does is basically replace the /! path by
		1869	# a new random map path (?random/...) with a seed
		1870	# that depends on the exit object
		1871
		1872	my $rmp = parse_random_map_params $exit->msg;
		1873
		1874	if ($exit->map) {
		1875	$rmp->{region} = $exit->map->region_name;
		1876	$rmp->{origin_map} = $exit->map->path;
		1877	$rmp->{origin_x} = $exit->x;
		1878	$rmp->{origin_y} = $exit->y;
		1879	}
		1880
		1881	$rmp->{random_seed} ||= $exit->random_seed;
		1882
		1883	my $data = cf::to_json $rmp;
		1884	my $md5 = Digest::MD5::md5_hex $data;
		1885	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1886
		1887	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1888	aio_write $fh, 0, (length $data), $data, 0;
		1889	undef $fh;
		1890	aio_rename "$meta~", $meta;
		1891
		1892	$exit->slaying ("?random/$md5");
		1893	$exit->msg (undef);
		1894	}
		1895	}
		1896
		1897	sub cf::object::player::enter_exit {
		1898	my ($self, $exit) = @_;
		1899
		1900	return unless $self->type == cf::PLAYER;
		1901
		1902	$self->enter_link;
		1903
		1904	(async {
		1905	$self->deactivate_recursive; # just to be sure
		1906	unless (eval {
		1907	prepare_random_map $exit
		1908	if $exit->slaying eq "/!";
		1909
		1910	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1911	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1912
		1913	1;
		1914	}) {
		1915	$self->message ("Something went wrong deep within the crossfire server. "
		1916	. "I'll try to bring you back to the map you were before. "
		1917	. "Please report this to the dungeon master!",
		1918	cf::NDI_UNIQUE | cf::NDI_RED);
		1919
		1920	warn "ERROR in enter_exit: $@";
		1921	$self->leave_link;
		1922	}
		1923	})->prio (1);
		1924	}
		1925
829	=head3 cf::client	1926	=head3 cf::client
830		1927
831	=over 4	1928	=over 4
832		1929
833	=item $client->send_drawinfo ($text, $flags)	1930	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	1973	on_reply => sub {
877	my ($ns, $msg) = @_;	1974	my ($ns, $msg) = @_;
878		1975
879	# this weird shuffling is so that direct followup queries	1976	# this weird shuffling is so that direct followup queries
880	# get handled first	1977	# get handled first
881	my $queue = delete $ns->{query_queue};	1978	my $queue = delete $ns->{query_queue}
		1979	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		1980
883	(shift @$queue)->[1]->($msg);	1981	(shift @$queue)->[1]->($msg);
884		1982
885	push @{ $ns->{query_queue} }, @$queue;	1983	push @{ $ns->{query_queue} }, @$queue;
886		1984
887	if (@{ $ns->{query_queue} } == @$queue) {	1985	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	1986	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	1987	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	1988	} else {
891	$ns->state (ST_PLAYING);	1989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	1990	}
893	}	1991	}
894	},	1992	},
895	);	1993	);
896		1994
897	=item $client->coro (\&cb)	1995	=item $client->async (\&cb)
898		1996
899	Create a new coroutine, running the specified callback. The coroutine will	1997	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	1998	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	1999	or loss of connection).
902		2000
903	=cut	2001	=cut
904		2002
905	sub cf::client::coro {	2003	sub cf::client::async {
906	my ($self, $cb) = @_;	2004	my ($self, $cb) = @_;
907		2005
908	my $coro; $coro = async {	2006	my $coro = &Coro::async ($cb);
909	eval {	2007
910	$cb->();	2008	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	2009	delete $self->{_coro}{$coro+0};
914	};	2010	});
915		2011
916	$self->{_coro}{$coro+0} = $coro;	2012	$self->{_coro}{$coro+0} = $coro;
		2013
		2014	$coro
917	}	2015	}
918		2016
919	cf::client->attach (	2017	cf::client->attach (
920	on_destroy => sub {	2018	on_destroy => sub {
921	my ($ns) = @_;	2019	my ($ns) = @_;
…		…
1085		2183
1086	{	2184	{
1087	my $path = cf::localdir . "/database.pst";	2185	my $path = cf::localdir . "/database.pst";
1088		2186
1089	sub db_load() {	2187	sub db_load() {
1090	warn "loading database $path\n";#d# remove later
1091	$DB = stat $path ? Storable::retrieve $path : { };	2188	$DB = stat $path ? Storable::retrieve $path : { };
1092	}	2189	}
1093		2190
1094	my $pid;	2191	my $pid;
1095		2192
1096	sub db_save() {	2193	sub db_save() {
1097	warn "saving database $path\n";#d# remove later
1098	waitpid $pid, 0 if $pid;	2194	waitpid $pid, 0 if $pid;
1099	if (0 == ($pid = fork)) {	2195	if (0 == ($pid = fork)) {
1100	$DB->{_meta}{version} = 1;	2196	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";	2197	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;	2198	rename "$path~", $path;
…		…
1109	sub db_sync() {	2205	sub db_sync() {
1110	db_save if $dirty;	2206	db_save if $dirty;
1111	undef $dirty;	2207	undef $dirty;
1112	}	2208	}
1113		2209
1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2210	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1115	db_sync;	2211	db_sync;
1116	});	2212	});
1117		2213
1118	sub db_dirty() {	2214	sub db_dirty() {
1119	$dirty = 1;	2215	$dirty = 1;
…		…
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2246	open my $fh, "<:utf8", cf::confdir . "/config"
1151	or return;	2247	or return;
1152		2248
1153	local $/;	2249	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2250	*CFG = YAML::Syck::Load <$fh>;
		2251
		2252	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2253
		2254	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2255	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2256
		2257	if (exists $CFG{mlockall}) {
		2258	eval {
		2259	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2260	and die "WARNING: m(un)lockall failed: $!\n";
		2261	};
		2262	warn $@ if $@;
		2263	}
1155	}	2264	}
1156		2265
1157	sub main {	2266	sub main {
		2267	# we must not ever block the main coroutine
		2268	local $Coro::idle = sub {
		2269	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2270	(async {
		2271	Event::one_event;
		2272	})->prio (Coro::PRIO_MAX);
		2273	};
		2274
1158	cfg_load;	2275	cfg_load;
1159	db_load;	2276	db_load;
1160	load_extensions;	2277	load_extensions;
		2278
		2279	$TICK_WATCHER->start;
1161	Event::loop;	2280	Event::loop;
1162	}	2281	}
1163		2282
1164	#############################################################################	2283	#############################################################################
1165	# initialisation	2284	# initialisation and cleanup
1166		2285
		2286	# install some emergency cleanup handlers
		2287	BEGIN {
		2288	for my $signal (qw(INT HUP TERM)) {
		2289	Event->signal (
		2290	data => WF_AUTOCANCEL,
		2291	signal => $signal,
		2292	cb => sub {
		2293	cf::cleanup "SIG$signal";
		2294	},
		2295	);
		2296	}
		2297	}
		2298
		2299	sub emergency_save() {
		2300	my $freeze_guard = cf::freeze_mainloop;
		2301
		2302	warn "enter emergency perl save\n";
		2303
		2304	cf::sync_job {
		2305	# use a peculiar iteration method to avoid tripping on perl
		2306	# refcount bugs in for. also avoids problems with players
		2307	# and maps saved/destroyed asynchronously.
		2308	warn "begin emergency player save\n";
		2309	for my $login (keys %cf::PLAYER) {
		2310	my $pl = $cf::PLAYER{$login} or next;
		2311	$pl->valid or next;
		2312	$pl->save;
		2313	}
		2314	warn "end emergency player save\n";
		2315
		2316	warn "begin emergency map save\n";
		2317	for my $path (keys %cf::MAP) {
		2318	my $map = $cf::MAP{$path} or next;
		2319	$map->valid or next;
		2320	$map->save;
		2321	}
		2322	warn "end emergency map save\n";
		2323	};
		2324
		2325	warn "leave emergency perl save\n";
		2326	}
		2327
1167	sub _perl_reload(&) {	2328	sub reload() {
1168	my ($msg) = @_;	2329	# can/must only be called in main
		2330	if ($Coro::current != $Coro::main) {
		2331	warn "can only reload from main coroutine";
		2332	return;
		2333	}
1169		2334
1170	$msg->("reloading...");	2335	warn "reloading...";
		2336
		2337	warn "cancelling server ticker";
		2338	$TICK_WATCHER->cancel;
		2339
		2340	cf::emergency_save;
1171		2341
1172	eval {	2342	eval {
1173	# cancel all watchers	2343	# if anything goes wrong in here, we should simply crash as we already saved
		2344
		2345	warn "syncing database to disk";
		2346	cf::db_sync;
		2347
		2348	warn "cancelling all WF_AUTOCANCEL watchers";
1174	for (Event::all_watchers) {	2349	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2350	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2351	}
1177		2352
1178	# unload all extensions	2353	warn "flushing outstanding aio requests";
1179	for (@exts) {	2354	for (;;) {
1180	$msg->("unloading <$_>");	2355	IO::AIO::flush;
1181	unload_extension $_;	2356	Coro::cede;
		2357	last unless IO::AIO::nreqs;
		2358	warn "iterate...";
		2359	}
		2360
		2361	warn "cancelling all extension coros";
		2362	$_->cancel for values %EXT_CORO;
		2363	%EXT_CORO = ();
		2364
		2365	warn "removing commands";
		2366	%COMMAND = ();
		2367
		2368	warn "removing ext commands";
		2369	%EXTCMD = ();
		2370
		2371	warn "unloading/nuking all extensions";
		2372	for my $pkg (@EXTS) {
		2373	warn "... unloading $pkg";
		2374
		2375	if (my $cb = $pkg->can ("unload")) {
		2376	eval {
		2377	$cb->($pkg);
		2378	1
		2379	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2380	}
1183		2381
		2382	warn "... nuking $pkg";
		2383	Symbol::delete_package $pkg;
		2384	}
		2385
1184	# unload all modules loaded from $LIBDIR	2386	warn "unloading all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2387	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2388	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2389
1188	$msg->("removing <$k>");	2390	warn "... unloading $k";
1189	delete $INC{$k};	2391	delete $INC{$k};
1190		2392
1191	$k =~ s/\.pm$//;	2393	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2394	$k =~ s/\//::/g;
1193		2395
…		…
1196	}	2398	}
1197		2399
1198	Symbol::delete_package $k;	2400	Symbol::delete_package $k;
1199	}	2401	}
1200		2402
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2403	warn "getting rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2404	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2405	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2406
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2407	warn "unloading cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2408	delete $INC{"cf.pm"};
1213		2409
1214	# don't, removes xs symbols, too,	2410	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2411	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2412	#Symbol::delete_package __PACKAGE__;
1217		2413
1218	# reload cf.pm	2414	warn "unload completed, starting to reload now";
		2415
1219	$msg->("reloading cf.pm");	2416	warn "reloading cf.pm";
1220	require cf;	2417	require cf;
		2418	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2419
1222	# load config and database again	2420	warn "loading config and database again";
1223	cf::cfg_load;	2421	cf::cfg_load;
1224	cf::db_load;	2422	cf::db_load;
1225		2423
1226	# load extensions	2424	warn "loading extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2425	cf::load_extensions;
1229		2426
1230	# reattach attachments to objects	2427	warn "reattaching attachments to objects/players";
1231	$msg->("reattach");
1232	_global_reattach;	2428	_global_reattach;
		2429	warn "reattaching attachments to maps";
		2430	reattach $_ for values %MAP;
		2431
		2432	warn "restarting server ticker";
		2433
		2434	$TICK_WATCHER->start;
1233	};	2435	};
1234	$msg->($@) if $@;
1235		2436
1236	$msg->("reloaded");	2437	if ($@) {
		2438	warn $@;
		2439	warn "error while reloading, exiting.";
		2440	exit 1;
		2441	}
		2442
		2443	warn "reloaded";
1237	};	2444	};
1238		2445
1239	sub perl_reload() {	2446	our $RELOAD_WATCHER; # used only during reload
1240	_perl_reload {
1241	warn $_[0];
1242	print "$_[0]\n";
1243	};
1244	}
1245		2447
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2448	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2449	my ($who, $arg) = @_;
1250		2450
1251	if ($who->flag (FLAG_WIZ)) {	2451	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2452	$who->message ("reloading server.");
1253	warn $_[0];	2453
1254	$who->message ($_[0]);	2454	# doing reload synchronously and two reloads happen back-to-back,
		2455	# coro crashes during coro_state_free->destroy here.
		2456
		2457	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
		2458	reload;
		2459	undef $RELOAD_WATCHER;
1255	};	2460	});
1256	}	2461	}
1257	};	2462	};
1258		2463
1259	unshift @INC, $LIBDIR;	2464	unshift @INC, $LIBDIR;
1260		2465
		2466	my $bug_warning = 0;
		2467
1261	$TICK_WATCHER = Event->timer (	2468	$TICK_WATCHER = Event->timer (
		2469	reentrant => 0,
		2470	parked => 1,
1262	prio => 0,	2471	prio => 0,
1263	at => $NEXT_TICK || 1,	2472	at => $NEXT_TICK || $TICK,
1264	data => WF_AUTOCANCEL,	2473	data => WF_AUTOCANCEL,
1265	cb => sub {	2474	cb => sub {
		2475	if ($Coro::current != $Coro::main) {
		2476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2477	unless ++$bug_warning > 10;
		2478	return;
		2479	}
		2480
		2481	$NOW = Event::time;
		2482
1266	cf::server_tick; # one server iteration	2483	cf::server_tick; # one server iteration
1267		2484	$RUNTIME += $TICK;
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	2485	$NEXT_TICK += $TICK;
1270		2486
		2487	$WAIT_FOR_TICK->broadcast;
		2488	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2489
1271	# if we are delayed by four ticks or more, skip them all	2490	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2491	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273		2492
1274	$TICK_WATCHER->at ($NEXT_TICK);	2493	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	2494	$TICK_WATCHER->start;
1276	},	2495	},
1277	);	2496	);
1278		2497
1279	IO::AIO::max_poll_time $TICK * 0.2;	2498	IO::AIO::max_poll_time $TICK * 0.2;
1280		2499
		2500	$AIO_POLL_WATCHER = Event->io (
1281	Event->io (fd => IO::AIO::poll_fileno,	2501	fd => IO::AIO::poll_fileno,
1282	poll => 'r',	2502	poll => 'r',
1283	prio => 5,	2503	prio => 5,
1284	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
1285	cb => \&IO::AIO::poll_cb);	2505	cb => \&IO::AIO::poll_cb,
		2506	);
		2507
		2508	$WRITE_RUNTIME_WATCHER = Event->timer (
		2509	data => WF_AUTOCANCEL,
		2510	after => 1,
		2511	interval => 10,
		2512	prio => 6, # keep it lowest so it acts like a watchdog
		2513	cb => Coro::unblock_sub {
		2514	write_runtime
		2515	or warn "ERROR: unable to write runtime file: $!";
		2516	},
		2517	);
		2518
		2519	END { cf::emergency_save }
1286		2520
1287	1	2521	1
1288		2522

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