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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 1.192 by root, Wed Jan 24 01:43:01 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	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1270	}
		1271
		1272	# and all this just because we cannot iterate over
		1273	# all maps in C++...
		1274	sub change_all_map_light {
		1275	my ($change) = @_;
		1276
		1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
		1279	}
		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
		1289	sub load_header_from($) {
		1290	my ($self, $path) = @_;
		1291
		1292	utf8::encode $path;
		1293	aio_open $path, O_RDONLY, 0
		1294	or return;
		1295
		1296	$self->_load_header ($path)
		1297	or return;
		1298
		1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
		1342	or return;
		1343	$self->prepare_orig;
		1344	}
		1345
		1346	1
		1347	}
		1348
		1349	sub find;
		1350	sub find {
		1351	my ($path, $origin) = @_;
		1352
		1353	$path = normalise $path, $origin && $origin->path;
		1354
		1355	cf::lock_wait "map_find:$path";
		1356
		1357	$cf::MAP{$path} || do {
		1358	my $guard = cf::lock_acquire "map_find:$path";
		1359	my $map = new_from_path cf::map $path
		1360	or return;
		1361
		1362	$map->{last_save} = $cf::RUNTIME;
		1363
		1364	$map->load_header
		1365	or return;
		1366
		1367	if ($map->should_reset) {
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
		1370	$map->reset;
		1371	undef $guard;
		1372	return find $path;
		1373	}
		1374
		1375	$cf::MAP{$path} = $map
		1376	}
		1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
		1381
		1382	sub load {
		1383	my ($self) = @_;
		1384
		1385	my $path = $self->{path};
		1386	my $guard = cf::lock_acquire "map_load:$path";
		1387
		1388	return if $self->in_memory != cf::MAP_SWAPPED;
		1389
		1390	$self->in_memory (cf::MAP_LOADING);
		1391
		1392	$self->alloc;
		1393
		1394	$self->pre_load;
		1395
		1396	$self->_load_objects ($self->{load_path}, 1)
		1397	or return;
		1398
		1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1400	if delete $self->{load_original};
		1401
		1402	if (my $uniq = $self->uniq_path) {
		1403	utf8::encode $uniq;
		1404	if (aio_open $uniq, O_RDONLY, 0) {
		1405	$self->clear_unique_items;
		1406	$self->_load_objects ($uniq, 0);
		1407	}
		1408	}
		1409
		1410	Coro::cede;
		1411
		1412	# now do the right thing for maps
		1413	$self->link_multipart_objects;
		1414
		1415	unless ($self->{deny_activate}) {
		1416	$self->decay_objects;
		1417	$self->fix_auto_apply;
		1418	$self->update_buttons;
		1419	Coro::cede;
		1420	$self->set_darkness_map;
		1421	$self->difficulty ($self->estimate_difficulty)
		1422	unless $self->difficulty;
		1423	Coro::cede;
		1424	$self->activate;
		1425	}
		1426
		1427	$self->post_load;
		1428
		1429	$self->in_memory (cf::MAP_IN_MEMORY);
		1430	}
		1431
		1432	sub customise_for {
		1433	my ($self, $ob) = @_;
		1434
		1435	return find "~" . $ob->name . "/" . $self->{path}
		1436	if $self->per_player;
		1437
		1438	$self
		1439	}
		1440
		1441	# find and load all maps in the 3x3 area around a map
		1442	sub load_diag {
716	my ($map) = @_;	1443	my ($map) = @_;
717		1444
718	my $path = $map->tmpname;	1445	my @diag; # diagonal neighbours
719	defined $path or return;
720		1446
721	unlink "$path.pst";	1447	for (0 .. 3) {
722	};	1448	my $neigh = $map->tile_path ($_)
		1449	or next;
		1450	$neigh = find $neigh, $map
		1451	or next;
		1452	$neigh->load;
723		1453
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1456	}
725		1457
726	#############################################################################	1458	for (@diag) {
727	# load/save perl data associated with player->ob objects	1459	my $neigh = find @$_
728		1460	or next;
729	sub all_objects(@) {	1461	$neigh->load;
730	@_, map all_objects ($_->inv), @_	1462	}
731	}	1463	}
732		1464
733	# TODO: compatibility cruft, remove when no longer needed	1465	sub find_sync {
734	cf::player->attach (	1466	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1467
738	for my $o (all_objects $pl->ob) {	1468	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1469	}
740	$o->set_ob_key_value ("_perl_data");
741		1470
742	%$o = %{ Storable::thaw pack "H*", $value };	1471	sub do_load_sync {
		1472	my ($map) = @_;
		1473
		1474	cf::sync_job { $map->load };
		1475	}
		1476
		1477	our %MAP_PREFETCH;
		1478	our $MAP_PREFETCHER = undef;
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = normalise $path, $origin && $origin->{path};
		1484
		1485	if (my $map = $cf::MAP{$path}) {
		1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1487	}
		1488
		1489	undef $MAP_PREFETCH{$path};
		1490	$MAP_PREFETCHER ||= cf::async {
		1491	while (%MAP_PREFETCH) {
		1492	for my $path (keys %MAP_PREFETCH) {
		1493	my $map = find $path
		1494	or next;
		1495	$map->load;
		1496
		1497	delete $MAP_PREFETCH{$path};
743	}	1498	}
744	}	1499	}
		1500	undef $MAP_PREFETCHER;
		1501	};
		1502	$MAP_PREFETCHER->prio (6);
		1503
		1504	()
		1505	}
		1506
		1507	sub save {
		1508	my ($self) = @_;
		1509
		1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1511
		1512	$self->{last_save} = $cf::RUNTIME;
		1513
		1514	return unless $self->dirty;
		1515
		1516	my $save = $self->save_path; utf8::encode $save;
		1517	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1518
		1519	$self->{load_path} = $save;
		1520
		1521	return if $self->{deny_save};
		1522
		1523	local $self->{last_access} = $self->last_access;#d#
		1524
		1525	cf::async {
		1526	$_->contr->save for $self->players;
		1527	};
		1528
		1529	if ($uniq) {
		1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1532	} else {
		1533	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	1534	}
746	);	1535	}
747		1536
748	#############################################################################	1537	sub swap_out {
		1538	my ($self) = @_;
749		1539
750	=head2 CORE EXTENSIONS	1540	# save first because save cedes
		1541	$self->save;
751		1542
752	Functions and methods that extend core crossfire objects.	1543	my $lock = cf::lock_acquire "map_data:" . $self->path;
753		1544
754	=head3 cf::player	1545	return if $self->players;
		1546	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1547	return if $self->{deny_save};
		1548
		1549	$self->clear;
		1550	$self->in_memory (cf::MAP_SWAPPED);
		1551	}
		1552
		1553	sub reset_at {
		1554	my ($self) = @_;
		1555
		1556	# TODO: safety, remove and allow resettable per-player maps
		1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1558	return 1e99 if $self->{deny_reset};
		1559
		1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1562
		1563	$time + $to
		1564	}
		1565
		1566	sub should_reset {
		1567	my ($self) = @_;
		1568
		1569	$self->reset_at <= $cf::RUNTIME
		1570	}
		1571
		1572	sub reset {
		1573	my ($self) = @_;
		1574
		1575	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1576
		1577	return if $self->players;
		1578	return if $self->isa ("ext::map_per_player");#d#
		1579
		1580	warn "resetting map ", $self->path;#d#
		1581
		1582	delete $cf::MAP{$self->path};
		1583
		1584	$self->in_memory (cf::MAP_SWAPPED);
		1585	$self->clear;
		1586
		1587	$_->clear_links_to ($self) for values %cf::MAP;
		1588
		1589	$self->unlink_save;
		1590	$self->destroy;
		1591	}
		1592
		1593	my $nuke_counter = "aaaa";
		1594
		1595	sub nuke {
		1596	my ($self) = @_;
		1597
		1598	delete $cf::MAP{$self->path};
		1599
		1600	$self->unlink_save;
		1601
		1602	bless $self, "cf::map";
		1603	delete $self->{deny_reset};
		1604	$self->{deny_save} = 1;
		1605	$self->reset_timeout (1);
		1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1607
		1608	$cf::MAP{$self->path} = $self;
		1609
		1610	$self->reset; # polite request, might not happen
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of paths of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	s/\.map$//;
		1632	push @paths, $_;
		1633	}
		1634
		1635	\@paths
		1636	}
		1637
		1638	package cf;
		1639
		1640	=back
		1641
		1642	=head3 cf::object
		1643
		1644	=cut
		1645
		1646	package cf::object;
755		1647
756	=over 4	1648	=over 4
757		1649
758	=item cf::player::exists $login	1650	=item $ob->inv_recursive
759		1651
760	Returns true when the given account exists.	1652	Returns the inventory of the object _and_ their inventories, recursively.
761		1653
762	=cut	1654	=cut
763		1655
764	sub cf::player::exists($) {	1656	sub inv_recursive_;
765	cf::player::find $_[0]	1657	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1658	map { $_, inv_recursive_ $_->inv } @_
767	}	1659	}
768		1660
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1661	sub inv_recursive {
770		1662	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	}	1663	}
		1664
		1665	package cf;
782		1666
783	=back	1667	=back
784		1668
785	=head3 cf::object::player	1669	=head3 cf::object::player
786		1670
…		…
824	(ref $cf::CFG{"may_$access"}	1708	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1709	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1710	: $cf::CFG{"may_$access"})
827	}	1711	}
828		1712
		1713	=item $player_object->enter_link
		1714
		1715	Freezes the player and moves him/her to a special map (C<{link}>).
		1716
		1717	The player should be reasonably safe there for short amounts of time. You
		1718	I<MUST> call C<leave_link> as soon as possible, though.
		1719
		1720	Will never block.
		1721
		1722	=item $player_object->leave_link ($map, $x, $y)
		1723
		1724	Moves the player out of the special C<{link}> map onto the specified
		1725	map. If the map is not valid (or omitted), the player will be moved back
		1726	to the location he/she was before the call to C<enter_link>, or, if that
		1727	fails, to the emergency map position.
		1728
		1729	Might block.
		1730
		1731	=cut
		1732
		1733	sub link_map {
		1734	unless ($LINK_MAP) {
		1735	$LINK_MAP = cf::map::find "{link}"
		1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1737	$LINK_MAP->load;
		1738	}
		1739
		1740	$LINK_MAP
		1741	}
		1742
		1743	sub cf::object::player::enter_link {
		1744	my ($self) = @_;
		1745
		1746	$self->deactivate_recursive;
		1747
		1748	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1749
		1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1751	if $self->map;
		1752
		1753	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1754	}
		1755
		1756	sub cf::object::player::leave_link {
		1757	my ($self, $map, $x, $y) = @_;
		1758
		1759	my $link_pos = delete $self->{_link_pos};
		1760
		1761	unless ($map) {
		1762	# restore original map position
		1763	($map, $x, $y) = @{ $link_pos || [] };
		1764	$map = cf::map::find $map;
		1765
		1766	unless ($map) {
		1767	($map, $x, $y) = @$EMERGENCY_POSITION;
		1768	$map = cf::map::find $map
		1769	or die "FATAL: cannot load emergency map\n";
		1770	}
		1771	}
		1772
		1773	($x, $y) = (-1, -1)
		1774	unless (defined $x) && (defined $y);
		1775
		1776	# use -1 or undef as default coordinates, not 0, 0
		1777	($x, $y) = ($map->enter_x, $map->enter_y)
		1778	if $x <=0 && $y <= 0;
		1779
		1780	$map->load;
		1781	$map->load_diag;
		1782
		1783	return unless $self->contr->active;
		1784	$self->activate_recursive;
		1785	$self->enter_map ($map, $x, $y);
		1786	}
		1787
		1788	cf::player->attach (
		1789	on_logout => sub {
		1790	my ($pl) = @_;
		1791
		1792	# abort map switching before logout
		1793	if ($pl->ob->{_link_pos}) {
		1794	cf::sync_job {
		1795	$pl->ob->leave_link
		1796	};
		1797	}
		1798	},
		1799	on_login => sub {
		1800	my ($pl) = @_;
		1801
		1802	# try to abort aborted map switching on player login :)
		1803	# should happen only on crashes
		1804	if ($pl->ob->{_link_pos}) {
		1805	$pl->ob->enter_link;
		1806	(async {
		1807	# we need this sleep as the login has a concurrent enter_exit running
		1808	# and this sleep increases chances of the player not ending up in scorn
		1809	$pl->ob->reply (undef,
		1810	"There was an internal problem at your last logout, "
		1811	. "the server will try to bring you to your intended destination in a second.",
		1812	cf::NDI_RED);
		1813	Coro::Timer::sleep 1;
		1814	$pl->ob->leave_link;
		1815	})->prio (2);
		1816	}
		1817	},
		1818	);
		1819
		1820	=item $player_object->goto ($path, $x, $y)
		1821
		1822	=cut
		1823
		1824	sub cf::object::player::goto {
		1825	my ($self, $path, $x, $y) = @_;
		1826
		1827	$self->enter_link;
		1828
		1829	(async {
		1830	my $map = cf::map::find $path;
		1831	$map = $map->customise_for ($self) if $map;
		1832
		1833	# warn "entering ", $map->path, " at ($x, $y)\n"
		1834	# if $map;
		1835
		1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1837
		1838	$self->leave_link ($map, $x, $y);
		1839	})->prio (1);
		1840	}
		1841
		1842	=item $player_object->enter_exit ($exit_object)
		1843
		1844	=cut
		1845
		1846	sub parse_random_map_params {
		1847	my ($spec) = @_;
		1848
		1849	my $rmp = { # defaults
		1850	xsize => (cf::rndm 15, 40),
		1851	ysize => (cf::rndm 15, 40),
		1852	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1853	#layout => string,
		1854	};
		1855
		1856	for (split /\n/, $spec) {
		1857	my ($k, $v) = split /\s+/, $_, 2;
		1858
		1859	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1860	}
		1861
		1862	$rmp
		1863	}
		1864
		1865	sub prepare_random_map {
		1866	my ($exit) = @_;
		1867
		1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1869
		1870	# all this does is basically replace the /! path by
		1871	# a new random map path (?random/...) with a seed
		1872	# that depends on the exit object
		1873
		1874	my $rmp = parse_random_map_params $exit->msg;
		1875
		1876	if ($exit->map) {
		1877	$rmp->{region} = $exit->map->region_name;
		1878	$rmp->{origin_map} = $exit->map->path;
		1879	$rmp->{origin_x} = $exit->x;
		1880	$rmp->{origin_y} = $exit->y;
		1881	}
		1882
		1883	$rmp->{random_seed} ||= $exit->random_seed;
		1884
		1885	my $data = cf::to_json $rmp;
		1886	my $md5 = Digest::MD5::md5_hex $data;
		1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1888
		1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1890	aio_write $fh, 0, (length $data), $data, 0;
		1891	undef $fh;
		1892	aio_rename "$meta~", $meta;
		1893
		1894	$exit->slaying ("?random/$md5");
		1895	$exit->msg (undef);
		1896	}
		1897	}
		1898
		1899	sub cf::object::player::enter_exit {
		1900	my ($self, $exit) = @_;
		1901
		1902	return unless $self->type == cf::PLAYER;
		1903
		1904	$self->enter_link;
		1905
		1906	(async {
		1907	$self->deactivate_recursive; # just to be sure
		1908	unless (eval {
		1909	prepare_random_map $exit
		1910	if $exit->slaying eq "/!";
		1911
		1912	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1914
		1915	1;
		1916	}) {
		1917	$self->message ("Something went wrong deep within the crossfire server. "
		1918	. "I'll try to bring you back to the map you were before. "
		1919	. "Please report this to the dungeon master!",
		1920	cf::NDI_UNIQUE | cf::NDI_RED);
		1921
		1922	warn "ERROR in enter_exit: $@";
		1923	$self->leave_link;
		1924	}
		1925	})->prio (1);
		1926	}
		1927
829	=head3 cf::client	1928	=head3 cf::client
830		1929
831	=over 4	1930	=over 4
832		1931
833	=item $client->send_drawinfo ($text, $flags)	1932	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	1975	on_reply => sub {
877	my ($ns, $msg) = @_;	1976	my ($ns, $msg) = @_;
878		1977
879	# this weird shuffling is so that direct followup queries	1978	# this weird shuffling is so that direct followup queries
880	# get handled first	1979	# get handled first
881	my $queue = delete $ns->{query_queue};	1980	my $queue = delete $ns->{query_queue}
		1981	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		1982
883	(shift @$queue)->[1]->($msg);	1983	(shift @$queue)->[1]->($msg);
884		1984
885	push @{ $ns->{query_queue} }, @$queue;	1985	push @{ $ns->{query_queue} }, @$queue;
886		1986
887	if (@{ $ns->{query_queue} } == @$queue) {	1987	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	1988	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	1989	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	1990	} else {
891	$ns->state (ST_PLAYING);	1991	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	1992	}
893	}	1993	}
894	},	1994	},
895	);	1995	);
896		1996
897	=item $client->coro (\&cb)	1997	=item $client->async (\&cb)
898		1998
899	Create a new coroutine, running the specified callback. The coroutine will	1999	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2000	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2001	or loss of connection).
902		2002
903	=cut	2003	=cut
904		2004
905	sub cf::client::coro {	2005	sub cf::client::async {
906	my ($self, $cb) = @_;	2006	my ($self, $cb) = @_;
907		2007
908	my $coro; $coro = async {	2008	my $coro = &Coro::async ($cb);
909	eval {	2009
910	$cb->();	2010	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	2011	delete $self->{_coro}{$coro+0};
914	};	2012	});
915		2013
916	$self->{_coro}{$coro+0} = $coro;	2014	$self->{_coro}{$coro+0} = $coro;
		2015
		2016	$coro
917	}	2017	}
918		2018
919	cf::client->attach (	2019	cf::client->attach (
920	on_destroy => sub {	2020	on_destroy => sub {
921	my ($ns) = @_;	2021	my ($ns) = @_;
…		…
1085		2185
1086	{	2186	{
1087	my $path = cf::localdir . "/database.pst";	2187	my $path = cf::localdir . "/database.pst";
1088		2188
1089	sub db_load() {	2189	sub db_load() {
1090	warn "loading database $path\n";#d# remove later
1091	$DB = stat $path ? Storable::retrieve $path : { };	2190	$DB = stat $path ? Storable::retrieve $path : { };
1092	}	2191	}
1093		2192
1094	my $pid;	2193	my $pid;
1095		2194
1096	sub db_save() {	2195	sub db_save() {
1097	warn "saving database $path\n";#d# remove later
1098	waitpid $pid, 0 if $pid;	2196	waitpid $pid, 0 if $pid;
1099	if (0 == ($pid = fork)) {	2197	if (0 == ($pid = fork)) {
1100	$DB->{_meta}{version} = 1;	2198	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";	2199	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;	2200	rename "$path~", $path;
…		…
1109	sub db_sync() {	2207	sub db_sync() {
1110	db_save if $dirty;	2208	db_save if $dirty;
1111	undef $dirty;	2209	undef $dirty;
1112	}	2210	}
1113		2211
1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2212	my $idle = Event->idle (
1115	db_sync;	2213	reentrant => 0,
		2214	min => 10,
		2215	max => 20,
		2216	repeat => 0,
		2217	data => WF_AUTOCANCEL,
		2218	cb => \&db_sync,
1116	});	2219	);
1117		2220
1118	sub db_dirty() {	2221	sub db_dirty() {
1119	$dirty = 1;	2222	$dirty = 1;
1120	$idle->start;	2223	$idle->start;
1121	}	2224	}
…		…
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1151	or return;	2254	or return;
1152		2255
1153	local $/;	2256	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
1155	}	2271	}
1156		2272
1157	sub main {	2273	sub main {
		2274	# we must not ever block the main coroutine
		2275	local $Coro::idle = sub {
		2276	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2277	(async {
		2278	Event::one_event;
		2279	})->prio (Coro::PRIO_MAX);
		2280	};
		2281
1158	cfg_load;	2282	cfg_load;
1159	db_load;	2283	db_load;
1160	load_extensions;	2284	load_extensions;
		2285
		2286	$TICK_WATCHER->start;
1161	Event::loop;	2287	Event::loop;
1162	}	2288	}
1163		2289
1164	#############################################################################	2290	#############################################################################
1165	# initialisation	2291	# initialisation and cleanup
1166		2292
		2293	# install some emergency cleanup handlers
		2294	BEGIN {
		2295	for my $signal (qw(INT HUP TERM)) {
		2296	Event->signal (
		2297	reentrant => 0,
		2298	data => WF_AUTOCANCEL,
		2299	signal => $signal,
		2300	prio => 0,
		2301	cb => sub {
		2302	cf::cleanup "SIG$signal";
		2303	},
		2304	);
		2305	}
		2306	}
		2307
		2308	sub emergency_save() {
		2309	my $freeze_guard = cf::freeze_mainloop;
		2310
		2311	warn "enter emergency perl save\n";
		2312
		2313	cf::sync_job {
		2314	# use a peculiar iteration method to avoid tripping on perl
		2315	# refcount bugs in for. also avoids problems with players
		2316	# and maps saved/destroyed asynchronously.
		2317	warn "begin emergency player save\n";
		2318	for my $login (keys %cf::PLAYER) {
		2319	my $pl = $cf::PLAYER{$login} or next;
		2320	$pl->valid or next;
		2321	$pl->save;
		2322	}
		2323	warn "end emergency player save\n";
		2324
		2325	warn "begin emergency map save\n";
		2326	for my $path (keys %cf::MAP) {
		2327	my $map = $cf::MAP{$path} or next;
		2328	$map->valid or next;
		2329	$map->save;
		2330	}
		2331	warn "end emergency map save\n";
		2332	};
		2333
		2334	warn "leave emergency perl save\n";
		2335	}
		2336
1167	sub _perl_reload(&) {	2337	sub reload() {
1168	my ($msg) = @_;	2338	# can/must only be called in main
		2339	if ($Coro::current != $Coro::main) {
		2340	warn "can only reload from main coroutine";
		2341	return;
		2342	}
1169		2343
1170	$msg->("reloading...");	2344	warn "reloading...";
		2345
		2346	warn "cancelling server ticker";
		2347	$TICK_WATCHER->cancel;
		2348
		2349	cf::emergency_save;
1171		2350
1172	eval {	2351	eval {
1173	# cancel all watchers	2352	# if anything goes wrong in here, we should simply crash as we already saved
		2353
		2354	warn "syncing database to disk";
		2355	cf::db_sync;
		2356
		2357	warn "cancelling all WF_AUTOCANCEL watchers";
1174	for (Event::all_watchers) {	2358	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2359	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2360	}
1177		2361
1178	# unload all extensions	2362	warn "flushing outstanding aio requests";
1179	for (@exts) {	2363	for (;;) {
1180	$msg->("unloading <$_>");	2364	IO::AIO::flush;
1181	unload_extension $_;	2365	Coro::cede;
		2366	last unless IO::AIO::nreqs;
		2367	warn "iterate...";
		2368	}
		2369
		2370	warn "cancelling all extension coros";
		2371	$_->cancel for values %EXT_CORO;
		2372	%EXT_CORO = ();
		2373
		2374	warn "removing commands";
		2375	%COMMAND = ();
		2376
		2377	warn "removing ext commands";
		2378	%EXTCMD = ();
		2379
		2380	warn "unloading/nuking all extensions";
		2381	for my $pkg (@EXTS) {
		2382	warn "... unloading $pkg";
		2383
		2384	if (my $cb = $pkg->can ("unload")) {
		2385	eval {
		2386	$cb->($pkg);
		2387	1
		2388	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2389	}
1183		2390
		2391	warn "... nuking $pkg";
		2392	Symbol::delete_package $pkg;
		2393	}
		2394
1184	# unload all modules loaded from $LIBDIR	2395	warn "unloading all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2396	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2397	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2398
1188	$msg->("removing <$k>");	2399	warn "... unloading $k";
1189	delete $INC{$k};	2400	delete $INC{$k};
1190		2401
1191	$k =~ s/\.pm$//;	2402	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2403	$k =~ s/\//::/g;
1193		2404
…		…
1196	}	2407	}
1197		2408
1198	Symbol::delete_package $k;	2409	Symbol::delete_package $k;
1199	}	2410	}
1200		2411
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2412	warn "getting rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2413	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2415
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2416	warn "unloading cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2417	delete $INC{"cf.pm"};
1213		2418
1214	# don't, removes xs symbols, too,	2419	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2420	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2421	#Symbol::delete_package __PACKAGE__;
1217		2422
1218	# reload cf.pm	2423	warn "unload completed, starting to reload now";
		2424
1219	$msg->("reloading cf.pm");	2425	warn "reloading cf.pm";
1220	require cf;	2426	require cf;
		2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2428
1222	# load config and database again	2429	warn "loading config and database again";
1223	cf::cfg_load;	2430	cf::cfg_load;
1224	cf::db_load;	2431	cf::db_load;
1225		2432
1226	# load extensions	2433	warn "loading extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2434	cf::load_extensions;
1229		2435
1230	# reattach attachments to objects	2436	warn "reattaching attachments to objects/players";
1231	$msg->("reattach");
1232	_global_reattach;	2437	_global_reattach;
		2438	warn "reattaching attachments to maps";
		2439	reattach $_ for values %MAP;
		2440
		2441	warn "restarting server ticker";
		2442
		2443	$TICK_WATCHER->start;
1233	};	2444	};
1234	$msg->($@) if $@;
1235		2445
1236	$msg->("reloaded");	2446	if ($@) {
		2447	warn $@;
		2448	warn "error while reloading, exiting.";
		2449	exit 1;
		2450	}
		2451
		2452	warn "reloaded";
1237	};	2453	};
1238		2454
1239	sub perl_reload() {	2455	our $RELOAD_WATCHER; # used only during reload
1240	_perl_reload {
1241	warn $_[0];
1242	print "$_[0]\n";
1243	};
1244	}
1245		2456
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2457	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2458	my ($who, $arg) = @_;
1250		2459
1251	if ($who->flag (FLAG_WIZ)) {	2460	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2461	$who->message ("reloading server.");
1253	warn $_[0];	2462
1254	$who->message ($_[0]);	2463	# doing reload synchronously and two reloads happen back-to-back,
		2464	# coro crashes during coro_state_free->destroy here.
		2465
		2466	$RELOAD_WATCHER ||= Event->timer (
		2467	reentrant => 0,
		2468	after => 0,
		2469	data => WF_AUTOCANCEL,
		2470	cb => sub {
		2471	reload;
		2472	undef $RELOAD_WATCHER;
		2473	},
1255	};	2474	);
1256	}	2475	}
1257	};	2476	};
1258		2477
1259	unshift @INC, $LIBDIR;	2478	unshift @INC, $LIBDIR;
1260		2479
		2480	my $bug_warning = 0;
		2481
1261	$TICK_WATCHER = Event->timer (	2482	$TICK_WATCHER = Event->timer (
		2483	reentrant => 0,
		2484	parked => 1,
1262	prio => 0,	2485	prio => 0,
1263	at => $NEXT_TICK || 1,	2486	at => $NEXT_TICK || $TICK,
1264	data => WF_AUTOCANCEL,	2487	data => WF_AUTOCANCEL,
1265	cb => sub {	2488	cb => sub {
		2489	if ($Coro::current != $Coro::main) {
		2490	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2491	unless ++$bug_warning > 10;
		2492	return;
		2493	}
		2494
		2495	$NOW = Event::time;
		2496
1266	cf::server_tick; # one server iteration	2497	cf::server_tick; # one server iteration
1267		2498	$RUNTIME += $TICK;
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	2499	$NEXT_TICK += $TICK;
1270		2500
		2501	$WAIT_FOR_TICK->broadcast;
		2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2503
		2504	Event::sweep;
		2505	Coro::cede_notself;
		2506
		2507	# my $AFTER = Event::time;
		2508	# warn $AFTER - $NOW;#d#
		2509
1271	# if we are delayed by four ticks or more, skip them all	2510	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273		2512
1274	$TICK_WATCHER->at ($NEXT_TICK);	2513	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	2514	$TICK_WATCHER->start;
1276	},	2515	},
1277	);	2516	);
1278		2517
1279	IO::AIO::max_poll_time $TICK * 0.2;	2518	IO::AIO::max_poll_time $TICK * 0.1;
1280		2519
		2520	undef $Coro::AIO::WATCHER;
		2521	$AIO_POLL_WATCHER = Event->io (
		2522	reentrant => 0,
1281	Event->io (fd => IO::AIO::poll_fileno,	2523	fd => IO::AIO::poll_fileno,
1282	poll => 'r',	2524	poll => 'r',
1283	prio => 5,	2525	prio => 6,
1284	data => WF_AUTOCANCEL,	2526	data => WF_AUTOCANCEL,
1285	cb => \&IO::AIO::poll_cb);	2527	cb => \&IO::AIO::poll_cb,
		2528	);
		2529
		2530	$WRITE_RUNTIME_WATCHER = Event->timer (
		2531	reentrant => 0,
		2532	data => WF_AUTOCANCEL,
		2533	after => 1,
		2534	interval => 10,
		2535	prio => 6, # keep it lowest so it acts like a watchdog
		2536	cb => Coro::unblock_sub {
		2537	write_runtime
		2538	or warn "ERROR: unable to write runtime file: $!";
		2539	},
		2540	);
		2541
		2542	END { cf::emergency_save }
1286		2543
1287	1	2544	1
1288		2545

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