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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.262 by root, Sat Apr 28 05:55:55 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
18		24
19	use IO::AIO 2.3;	25	use BDB ();
		26	use Data::Dumper;
		27	use Digest::MD5;
		28	use Fcntl;
20	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
21	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
22		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
24		41
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
27		44
28	$Coro::main->prio (Coro::PRIO_MIN);	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		46
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		48
32	our %COMMAND = ();	49	our %COMMAND = ();
33	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
35		56
		57	our $RELOAD; # number of reloads so far
36	our @EVENT;	58	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		59
39	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	76	our $NEXT_TICK;
		77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
42		82
43	our %CFG;	83	our %CFG;
44		84
45	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
		86	our $RUNTIME;
		87
		88	our %PLAYER; # all users
		89	our %MAP; # all maps
		90	our $LINK_MAP; # the special {link} map, which is always available
		91
		92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	binmode STDOUT;
		96	binmode STDERR;
		97
		98	# read virtual server time, if available
		99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		100	open my $fh, "<", "$LOCALDIR/runtime"
		101	or die "unable to read runtime file: $!";
		102	$RUNTIME = <$fh> + 0.;
		103	}
		104
		105	mkdir $_
		106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		107
		108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
46		111
47	#############################################################################	112	#############################################################################
48		113
49	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
50		115
…		…
52		117
53	=item $cf::UPTIME	118	=item $cf::UPTIME
54		119
55	The timestamp of the server start (so not actually an uptime).	120	The timestamp of the server start (so not actually an uptime).
56		121
57	=item $cf::LIBDIR	122	=item $cf::RUNTIME
58		123
59	The perl library directory, where extensions and cf-specific modules can	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	125	every server tick.
		126
		127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		130
		131	Various directories - "/etc", read-only install directory, perl-library
		132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
		135
		136	=item $cf::NOW
		137
		138	The time of the last (current) server tick.
61		139
62	=item $cf::TICK	140	=item $cf::TICK
63		141
64	The interval between server ticks, in seconds.	142	The interval between server ticks, in seconds.
65		143
66	=item %cf::CFG	144	=item %cf::CFG
67		145
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
70		154
71	=back	155	=back
72		156
73	=cut	157	=cut
74		158
75	BEGIN {	159	BEGIN {
76	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	161	my $msg = join "", @_;
		162
78	$msg .= "\n"	163	$msg .= "\n"
79	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
80		165
81	print STDERR "cfperl: $msg";	166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
82	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
83	};	170	};
84	}	171	}
85		172
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		192
106	$Event::DIED = sub {	193	$Event::DIED = sub {
107	warn "error in event callback: @_";	194	warn "error in event callback: @_";
108	};	195	};
109		196
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
115		198
116	=over 4	199	=over 4
117		200
118	=cut	201	=item dumpval $ref
119		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
121		225
122	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
123		227
124	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
125		229
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
134		231
135	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
136		233
137	=cut	234	=item cf::lock_wait $string
138		235
139	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
141	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
		264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
		305
		306	=item cf::sync_job { BLOCK }
		307
		308	The design of crossfire+ requires that the main coro ($Coro::main) is
		309	always able to handle events or runnable, as crossfire+ is only partly
		310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		311
		312	If it must be done, put the blocking parts into C<sync_job>. This will run
		313	the given BLOCK in another coroutine while waiting for the result. The
		314	server will be frozen during this time, so the block should either finish
		315	fast or be very important.
		316
		317	=cut
		318
		319	sub sync_job(&) {
		320	my ($job) = @_;
		321
		322	if ($Coro::current == $Coro::main) {
		323	# this is the main coro, too bad, we have to block
		324	# till the operation succeeds, freezing the server :/
		325
		326	# TODO: use suspend/resume instead
		327	# (but this is cancel-safe)
		328	my $freeze_guard = freeze_mainloop;
		329
		330	my $busy = 1;
		331	my @res;
		332
		333	(async {
		334	@res = eval { $job->() };
		335	warn $@ if $@;
		336	undef $busy;
		337	})->prio (Coro::PRIO_MAX);
		338
		339	while ($busy) {
		340	Coro::cede or Event::one_event;
		341	}
		342
		343	wantarray ? @res : $res[0]
		344	} else {
		345	# we are in another coroutine, how wonderful, everything just works
		346
		347	$job->()
		348	}
		349	}
		350
		351	=item $coro = cf::async_ext { BLOCK }
		352
		353	Like async, but this coro is automatically being canceled when the
		354	extension calling this is being unloaded.
		355
		356	=cut
		357
		358	sub async_ext(&) {
		359	my $cb = shift;
		360
		361	my $coro = &Coro::async ($cb);
		362
		363	$coro->on_destroy (sub {
		364	delete $EXT_CORO{$coro+0};
		365	});
		366	$EXT_CORO{$coro+0} = $coro;
		367
		368	$coro
		369	}
		370
		371	sub write_runtime {
		372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
		375
		376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		377	or return;
		378
		379	my $value = $cf::RUNTIME + 90 + 10;
		380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
		383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		384	and return;
		385
		386	# always fsync - this file is important
		387	aio_fsync $fh
		388	and return;
		389
		390	close $fh
		391	or return;
		392
		393	aio_rename "$runtime~", $runtime
		394	and return;
		395
		396	1
		397	}
		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	408	}
143		409
144	=back	410	=back
145		411
146	=cut	412	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	544	our @CB_MAP = ();
279		545
280	my %attachment;	546	my %attachment;
281		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
282	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
284		556
285	use sort 'stable';	557	use sort 'stable';
286		558
…		…
457	# object support	729	# object support
458		730
459	sub reattach {	731	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		736
463	my $registry = $obj->registry;	737	my $registry = $obj->registry;
464		738
465	@$registry = ();	739	@$registry = ();
466		740
…		…
505	);	779	);
506		780
507	sub object_freezer_save {	781	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	782	my ($filename, $rdata, $objs) = @_;
509		783
		784	sync_job {
510	if (length $$rdata) {	785	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	786	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
513		788
514	if (open my $fh, ">:raw", "$filename~") {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		792	aio_fsync $fh if $cf::USE_FSYNC;
522	close $fh;	793	close $fh;
		794
		795	if (@$objs) {
		796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		797	chmod SAVE_MODE, $fh;
		798	my $data = Storable::nfreeze { version => 1, objs => $objs };
		799	aio_write $fh, 0, (length $data), $data, 0;
		800	aio_fsync $fh if $cf::USE_FSYNC;
		801	close $fh;
523	rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
		803	}
		804	} else {
		805	aio_unlink "$filename.pst";
		806	}
		807
		808	aio_rename "$filename~", $filename;
524	} else {	809	} else {
525	unlink "$filename.pst";	810	warn "FATAL: $filename~: $!\n";
526	}	811	}
527
528	rename "$filename~", $filename;
529	} else {	812	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	813	aio_unlink $filename;
534	unlink "$filename.pst";	814	aio_unlink "$filename.pst";
		815	}
535	}	816	}
536	}	817	}
537		818
538	sub object_freezer_as_string {	819	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	820	my ($rdata, $objs) = @_;
…		…
544	}	825	}
545		826
546	sub object_thawer_load {	827	sub object_thawer_load {
547	my ($filename) = @_;	828	my ($filename) = @_;
548		829
549	local $/;	830	my ($data, $av);
550		831
551	my $av;	832	(aio_load $filename, $data) >= 0
		833	or return;
552		834
553	#TODO: use sysread etc.	835	unless (aio_stat "$filename.pst") {
554	if (open my $data, "<:raw:perlio", $filename) {	836	(aio_load "$filename.pst", $av) >= 0
555	$data = <$data>;	837	or return;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	838	$av = eval { (Storable::thaw $av)->{objs} };
558	}	839	}
		840
		841	warn sprintf "loading %s (%d)\n",
		842	$filename, length $data, scalar @{$av || []};#d#
559	return ($data, $av);	843	return ($data, $av);
560	}
561
562	()
563	}	844	}
564		845
565	#############################################################################	846	#############################################################################
566	# command handling &c	847	# command handling &c
567		848
…		…
591	=cut	872	=cut
592		873
593	sub register_extcmd {	874	sub register_extcmd {
594	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
595		876
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
600	}	878	}
601		879
602	cf::player->attach (	880	cf::player->attach (
603	on_command => sub {	881	on_command => sub {
604	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
617		895
618	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
619		897
620	if (ref $msg) {	898	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	902	}
625	}	903	}
626	} else {	904	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		907
630	cf::override;	908	cf::override;
631	},	909	},
632	);	910	);
633		911
634	sub register {
635	my ($base, $pkg) = @_;
636
637	#TODO
638	}
639
640	sub load_extension {	912	sub load_extension {
641	my ($path) = @_;	913	my ($path) = @_;
642		914
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
644	my $base = $1;	916	my $base = $1;
645	my $pkg = $1;	917	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
648		920
649	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
650		922
651	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
652	or die "$path: $!";	924	or die "$path: $!";
653		925
654	my $source =	926	my $source =
655	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
658	. "\n};\n1";	930	. "\n};\n1";
659		931
660	eval $source	932	unless (eval $source) {
661	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
662	: "extension disabled.\n";	934	: "extension disabled.\n";
663		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
664	push @exts, $pkg;	936	warn $@;
665	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
666		938	exit 1;
667	# no strict 'refs';	939	}
668	# @{"$pkg\::ISA"} = ext::;	940	die $@;
669
670	register $base, $pkg;
671	}
672
673	sub unload_extension {
674	my ($pkg) = @_;
675
676	warn "removing extension $pkg\n";
677
678	# remove hooks
679	#TODO
680	# for my $idx (0 .. $#PLUGIN_EVENT) {
681	# delete $hook[$idx]{$pkg};
682	# }	941	}
683		942
684	# remove commands	943	push @EXTS, $pkg;
685	for my $name (keys %COMMAND) {
686	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
687
688	if (@cb) {
689	$COMMAND{$name} = \@cb;
690	} else {
691	delete $COMMAND{$name};
692	}
693	}
694
695	# remove extcmds
696	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
697	delete $EXTCMD{$name};
698	}
699
700	if (my $cb = $pkg->can ("unload")) {
701	eval {
702	$cb->($pkg);
703	1
704	} or warn "$pkg unloaded, but with errors: $@";
705	}
706
707	Symbol::delete_package $pkg;
708	}	944	}
709		945
710	sub load_extensions {	946	sub load_extensions {
711	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
712	next unless -r $ext;	948	next unless -r $ext;
…		…
716	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
717	}	953	}
718	}	954	}
719		955
720	#############################################################################	956	#############################################################################
721	# load/save/clean perl data associated with a map
722		957
723	*cf::mapsupport::on_clean = sub {	958	=head2 CORE EXTENSIONS
		959
		960	Functions and methods that extend core crossfire objects.
		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
		968	=head3 cf::player
		969
		970	=over 4
		971
		972	=item cf::player::find $login
		973
		974	Returns the given player object, loading it if necessary (might block).
		975
		976	=cut
		977
		978	sub playerdir($) {
		979	"$PLAYERDIR/"
		980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		981	}
		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
		1154	=item $player->ext_reply ($msgid, %msg)
		1155
		1156	Sends an ext reply to the player.
		1157
		1158	=cut
		1159
		1160	sub ext_reply($$%) {
		1161	my ($self, $id, %msg) = @_;
		1162
		1163	$msg{msgid} = $id;
		1164
		1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
		1207	}
		1208
		1209	=back
		1210
		1211	=head3 cf::map
		1212
		1213	=over 4
		1214
		1215	=cut
		1216
		1217	package cf::map;
		1218
		1219	use Fcntl;
		1220	use Coro::AIO;
		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
		1226	our $MAX_RESET = 3600;
		1227	our $DEFAULT_RESET = 3000;
		1228
		1229	sub generate_random_map {
		1230	my ($self, $rmp) = @_;
		1231	# mit "rum" bekleckern, nicht
		1232	$self->_create_random_map (
		1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1236	$rmp->{exit_on_final_map},
		1237	$rmp->{xsize}, $rmp->{ysize},
		1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
		1374	}
		1375
		1376	# and all this just because we cannot iterate over
		1377	# all maps in C++...
		1378	sub change_all_map_light {
		1379	my ($change) = @_;
		1380
		1381	$_->change_map_light ($change)
		1382	for grep $_->outdoor, values %cf::MAP;
		1383	}
		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
		1393	sub load_header_from($) {
		1394	my ($self, $path) = @_;
		1395
		1396	utf8::encode $path;
		1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
		1401	or return;
		1402
		1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
		1446	or return;
		1447	$self->prepare_orig;
		1448	}
		1449
		1450	$self->default_region (cf::region::find_by_path $self->{path})
		1451	unless $self->default_region;
		1452
		1453	1
		1454	}
		1455
		1456	sub find;
		1457	sub find {
		1458	my ($path, $origin) = @_;
		1459
		1460	$path = normalise $path, $origin && $origin->path;
		1461
		1462	cf::lock_wait "map_find:$path";
		1463
		1464	$cf::MAP{$path} || do {
		1465	my $guard = cf::lock_acquire "map_find:$path";
		1466	my $map = new_from_path cf::map $path
		1467	or return;
		1468
		1469	$map->{last_save} = $cf::RUNTIME;
		1470
		1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
		1477	$map->reset;
		1478	undef $guard;
		1479	return find $path;
		1480	}
		1481
		1482	$cf::MAP{$path} = $map
		1483	}
		1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
		1488
		1489	sub load {
		1490	my ($self) = @_;
		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
		1494	my $path = $self->{path};
		1495
		1496	{
		1497	my $guard = cf::lock_acquire "map_load:$path";
		1498
		1499	return if $self->in_memory != cf::MAP_SWAPPED;
		1500
		1501	$self->in_memory (cf::MAP_LOADING);
		1502
		1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
		1508	$self->_load_objects ($self->{load_path}, 1)
		1509	or return;
		1510
		1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1512	if delete $self->{load_original};
		1513
		1514	if (my $uniq = $self->uniq_path) {
		1515	utf8::encode $uniq;
		1516	if (aio_open $uniq, O_RDONLY, 0) {
		1517	$self->clear_unique_items;
		1518	$self->_load_objects ($uniq, 0);
		1519	}
		1520	}
		1521
		1522	Coro::cede;
		1523	# now do the right thing for maps
		1524	$self->link_multipart_objects;
		1525	$self->difficulty ($self->estimate_difficulty)
		1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
		1536	$self->activate;
		1537	}
		1538
		1539	$self->in_memory (cf::MAP_IN_MEMORY);
		1540	}
		1541
		1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
724	my ($map) = @_;	1556	my ($map) = @_;
725		1557
726	my $path = $map->tmpname;	1558	my @diag; # diagonal neighbours
727	defined $path or return;
728		1559
729	unlink "$path.pst";	1560	for (0 .. 3) {
730	};	1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
731		1566
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
733		1570
734	#############################################################################	1571	for (@diag) {
735	# load/save perl data associated with player->ob objects	1572	my $neigh = find @$_
736		1573	or next;
737	sub all_objects(@) {	1574	$neigh->load;
738	@_, map all_objects ($_->inv), @_	1575	}
739	}	1576	}
740		1577
741	# TODO: compatibility cruft, remove when no longer needed	1578	sub find_sync {
742	cf::player->attach (	1579	my ($path, $origin) = @_;
743	on_load => sub {
744	my ($pl, $path) = @_;
745		1580
746	for my $o (all_objects $pl->ob) {	1581	cf::sync_job { find $path, $origin }
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1582	}
748	$o->set_ob_key_value ("_perl_data");
749		1583
750	%$o = %{ Storable::thaw pack "H*", $value };	1584	sub do_load_sync {
		1585	my ($map) = @_;
		1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
		1608	$map->load;
		1609
		1610	delete $MAP_PREFETCH{$path};
751	}	1611	}
752	}	1612	}
		1613	undef $MAP_PREFETCHER;
		1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
		1618	}
		1619
		1620	sub save {
		1621	my ($self) = @_;
		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
		1625	$self->{last_save} = $cf::RUNTIME;
		1626
		1627	return unless $self->dirty;
		1628
		1629	my $save = $self->save_path; utf8::encode $save;
		1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1631
		1632	$self->{load_path} = $save;
		1633
		1634	return if $self->{deny_save};
		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
		1642	if ($uniq) {
		1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1645	} else {
		1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
753	},	1647	}
754	);	1648	}
755		1649
756	#############################################################################	1650	sub swap_out {
		1651	my ($self) = @_;
757		1652
758	=head2 CORE EXTENSIONS	1653	# save first because save cedes
		1654	$self->save;
759		1655
760	Functions and methods that extend core crossfire objects.	1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
761		1657
762	=head3 cf::player	1658	return if $self->players;
		1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1660	return if $self->{deny_save};
		1661
		1662	$self->clear;
		1663	$self->in_memory (cf::MAP_SWAPPED);
		1664	}
		1665
		1666	sub reset_at {
		1667	my ($self) = @_;
		1668
		1669	# TODO: safety, remove and allow resettable per-player maps
		1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1671	return 1e99 if $self->{deny_reset};
		1672
		1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1675
		1676	$time + $to
		1677	}
		1678
		1679	sub should_reset {
		1680	my ($self) = @_;
		1681
		1682	$self->reset_at <= $cf::RUNTIME
		1683	}
		1684
		1685	sub reset {
		1686	my ($self) = @_;
		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
		1690	return if $self->players;
		1691	return if $self->isa ("ext::map_per_player");#d#
		1692
		1693	warn "resetting map ", $self->path;#d#
		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
		1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
		1708
		1709	$_->clear_links_to ($self) for values %cf::MAP;
		1710
		1711	$self->unlink_save;
		1712	$self->destroy;
		1713	}
		1714
		1715	my $nuke_counter = "aaaa";
		1716
		1717	sub nuke {
		1718	my ($self) = @_;
		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
		1726	$self->{deny_save} = 1;
		1727	$self->reset_timeout (1);
		1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
		1732	$self->reset; # polite request, might not happen
		1733	}
		1734
		1735	=item cf::map::unique_maps
		1736
		1737	Returns an arrayref of paths of all shared maps that have
		1738	instantiated unique items. May block.
		1739
		1740	=cut
		1741
		1742	sub unique_maps() {
		1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
		1745
		1746	my @paths;
		1747
		1748	for (@$files) {
		1749	utf8::decode $_;
		1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
		1754	}
		1755
		1756	\@paths
		1757	}
		1758
		1759	package cf;
		1760
		1761	=back
		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
763		1768
764	=over 4	1769	=over 4
765		1770
766	=item cf::player::exists $login	1771	=item $ob->inv_recursive
767		1772
768	Returns true when the given account exists.	1773	Returns the inventory of the object _and_ their inventories, recursively.
769		1774
770	=cut	1775	=cut
771		1776
772	sub cf::player::exists($) {	1777	sub inv_recursive_;
773	cf::player::find $_[0]	1778	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1779	map { $_, inv_recursive_ $_->inv } @_
775	}	1780	}
776		1781
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1782	sub inv_recursive {
778		1783	inv_recursive_ inv $_[0]
779	Sends an ext reply to the player.
780
781	=cut
782
783	sub cf::player::ext_reply($$$%) {
784	my ($self, $id, %msg) = @_;
785
786	$msg{msgid} = $id;
787
788	$self->send ("ext " . to_json \%msg);
789	}	1784	}
		1785
		1786	package cf;
790		1787
791	=back	1788	=back
792		1789
793	=head3 cf::object::player	1790	=head3 cf::object::player
794		1791
…		…
832	(ref $cf::CFG{"may_$access"}	1829	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1831	: $cf::CFG{"may_$access"})
835	}	1832	}
836		1833
		1834	=item $player_object->enter_link
		1835
		1836	Freezes the player and moves him/her to a special map (C<{link}>).
		1837
		1838	The player should be reasonably safe there for short amounts of time. You
		1839	I<MUST> call C<leave_link> as soon as possible, though.
		1840
		1841	Will never block.
		1842
		1843	=item $player_object->leave_link ($map, $x, $y)
		1844
		1845	Moves the player out of the special C<{link}> map onto the specified
		1846	map. If the map is not valid (or omitted), the player will be moved back
		1847	to the location he/she was before the call to C<enter_link>, or, if that
		1848	fails, to the emergency map position.
		1849
		1850	Might block.
		1851
		1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
		1863
		1864	sub cf::object::player::enter_link {
		1865	my ($self) = @_;
		1866
		1867	$self->deactivate_recursive;
		1868
		1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1870
		1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1872	if $self->map;
		1873
		1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1875	}
		1876
		1877	sub cf::object::player::leave_link {
		1878	my ($self, $map, $x, $y) = @_;
		1879
		1880	my $link_pos = delete $self->{_link_pos};
		1881
		1882	unless ($map) {
		1883	# restore original map position
		1884	($map, $x, $y) = @{ $link_pos || [] };
		1885	$map = cf::map::find $map;
		1886
		1887	unless ($map) {
		1888	($map, $x, $y) = @$EMERGENCY_POSITION;
		1889	$map = cf::map::find $map
		1890	or die "FATAL: cannot load emergency map\n";
		1891	}
		1892	}
		1893
		1894	($x, $y) = (-1, -1)
		1895	unless (defined $x) && (defined $y);
		1896
		1897	# use -1 or undef as default coordinates, not 0, 0
		1898	($x, $y) = ($map->enter_x, $map->enter_y)
		1899	if $x <=0 && $y <= 0;
		1900
		1901	$map->load;
		1902	$map->load_diag;
		1903
		1904	return unless $self->contr->active;
		1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1908	$self->enter_map ($map, $x, $y);
		1909	}
		1910
		1911	cf::player->attach (
		1912	on_logout => sub {
		1913	my ($pl) = @_;
		1914
		1915	# abort map switching before logout
		1916	if ($pl->ob->{_link_pos}) {
		1917	cf::sync_job {
		1918	$pl->ob->leave_link
		1919	};
		1920	}
		1921	},
		1922	on_login => sub {
		1923	my ($pl) = @_;
		1924
		1925	# try to abort aborted map switching on player login :)
		1926	# should happen only on crashes
		1927	if ($pl->ob->{_link_pos}) {
		1928	$pl->ob->enter_link;
		1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
		1934	# we need this sleep as the login has a concurrent enter_exit running
		1935	# and this sleep increases chances of the player not ending up in scorn
		1936	Coro::Timer::sleep 1;
		1937	$pl->ob->leave_link;
		1938	})->prio (2);
		1939	}
		1940	},
		1941	);
		1942
		1943	=item $player_object->goto ($path, $x, $y)
		1944
		1945	=cut
		1946
		1947	sub cf::object::player::goto {
		1948	my ($self, $path, $x, $y) = @_;
		1949
		1950	$self->enter_link;
		1951
		1952	(async {
		1953	my $map = eval {
		1954	my $map = cf::map::find $path;
		1955	$map = $map->customise_for ($self) if $map;
		1956	$map
		1957	} or
		1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1959
		1960	$self->leave_link ($map, $x, $y);
		1961	})->prio (1);
		1962	}
		1963
		1964	=item $player_object->enter_exit ($exit_object)
		1965
		1966	=cut
		1967
		1968	sub parse_random_map_params {
		1969	my ($spec) = @_;
		1970
		1971	my $rmp = { # defaults
		1972	xsize => (cf::rndm 15, 40),
		1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
		1976	};
		1977
		1978	for (split /\n/, $spec) {
		1979	my ($k, $v) = split /\s+/, $_, 2;
		1980
		1981	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1982	}
		1983
		1984	$rmp
		1985	}
		1986
		1987	sub prepare_random_map {
		1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1991
		1992	# all this does is basically replace the /! path by
		1993	# a new random map path (?random/...) with a seed
		1994	# that depends on the exit object
		1995
		1996	my $rmp = parse_random_map_params $exit->msg;
		1997
		1998	if ($exit->map) {
		1999	$rmp->{region} = $exit->region->name;
		2000	$rmp->{origin_map} = $exit->map->path;
		2001	$rmp->{origin_x} = $exit->x;
		2002	$rmp->{origin_y} = $exit->y;
		2003	}
		2004
		2005	$rmp->{random_seed} ||= $exit->random_seed;
		2006
		2007	my $data = cf::to_json $rmp;
		2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
		2010
		2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
		2015
		2016	$exit->slaying ("?random/$md5");
		2017	$exit->msg (undef);
		2018	}
		2019	}
		2020
		2021	sub cf::object::player::enter_exit {
		2022	my ($self, $exit) = @_;
		2023
		2024	return unless $self->type == cf::PLAYER;
		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
		2037	$self->enter_link;
		2038
		2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
		2041	unless (eval {
		2042	$self->goto ($slaying, $hp, $sp);
		2043
		2044	1;
		2045	}) {
		2046	$self->message ("Something went wrong deep within the crossfire server. "
		2047	. "I'll try to bring you back to the map you were before. "
		2048	. "Please report this to the dungeon master!",
		2049	cf::NDI_UNIQUE | cf::NDI_RED);
		2050
		2051	warn "ERROR in enter_exit: $@";
		2052	$self->leave_link;
		2053	}
		2054	})->prio (1);
		2055	}
		2056
837	=head3 cf::client	2057	=head3 cf::client
838		2058
839	=over 4	2059	=over 4
840		2060
841	=item $client->send_drawinfo ($text, $flags)	2061	=item $client->send_drawinfo ($text, $flags)
…		…
847		2067
848	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
849	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
850		2070
851	utf8::encode $text;	2071	utf8::encode $text;
852	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
853	}	2073	}
854		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
855		2087
856	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
857		2089
858	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
859	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
884	on_reply => sub {	2116	on_reply => sub {
885	my ($ns, $msg) = @_;	2117	my ($ns, $msg) = @_;
886		2118
887	# this weird shuffling is so that direct followup queries	2119	# this weird shuffling is so that direct followup queries
888	# get handled first	2120	# get handled first
889	my $queue = delete $ns->{query_queue};	2121	my $queue = delete $ns->{query_queue}
		2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		2123
891	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
892		2126
893	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
894		2128
895	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
896	if (@$queue) {	2130	if (@$queue) {
…		…
900	}	2134	}
901	}	2135	}
902	},	2136	},
903	);	2137	);
904		2138
905	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
906		2140
907	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	2143	or loss of connection).
910		2144
911	=cut	2145	=cut
912		2146
913	sub cf::client::coro {	2147	sub cf::client::async {
914	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
915		2149
916	my $coro; $coro = async {	2150	my $coro = &Coro::async ($cb);
917	eval {	2151
918	$cb->();	2152	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
922	};	2154	});
923		2155
924	$self->{_coro}{$coro+0} = $coro;	2156	$self->{_coro}{$coro+0} = $coro;
		2157
		2158	$coro
925	}	2159	}
926		2160
927	cf::client->attach (	2161	cf::client->attach (
928	on_destroy => sub {	2162	on_destroy => sub {
929	my ($ns) = @_;	2163	my ($ns) = @_;
…		…
954		2188
955	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
956		2190
957	=pod	2191	=pod
958		2192
959	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
960		2194
961	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
962	cf::object::player player	2196	cf::object::player player
963	cf::player peaceful	2197	cf::player peaceful
964	cf::map trigger	2198	cf::map trigger
…		…
1049	#############################################################################	2283	#############################################################################
1050		2284
1051	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1052		2286
1053	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1054	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1055	excludes objects.	2289	convert to/from binary).
1056		2290
1057	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1058	using it, it should be unique.	2292	using it, it should be unique.
1059		2293
1060	=over 4	2294	=over 4
1061		2295
1062	=item $hashref = cf::db_get $family
1063
1064	Return a hashref for use by the extension C<$family>, which can be
1065	modified. After modifications, you have to call C<cf::db_dirty> or
1066	C<cf::db_sync>.
1067
1068	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1069		2297
1070	Returns a single value from the database	2298	Returns a single value from the database.
1071
1072	=item cf::db_put $family => $hashref
1073
1074	Stores the given family hashref into the database. Updates are delayed, if
1075	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1076		2299
1077	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1078		2301
1079	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1080	want the data to be synced to disk immediately, use C<cf::db_sync>.
1081
1082	=item cf::db_dirty
1083
1084	Marks the database as dirty, to be updated at a later time.
1085
1086	=item cf::db_sync
1087
1088	Immediately write the database to disk I<if it is dirty>.
1089		2303
1090	=cut	2304	=cut
1091		2305
1092	our $DB;	2306	our $DB;
1093		2307
1094	{	2308	sub db_init {
1095	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1096		2311
1097	sub db_load() {	2312	cf::sync_job {
1098	warn "loading database $path\n";#d# remove later	2313	eval {
1099	$DB = stat $path ? Storable::retrieve $path : { };	2314	$DB->set_flags (BDB::CHKSUM);
1100	}
1101		2315
1102	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1103		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1104	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1105	warn "saving database $path\n";#d# remove later	2319	};
1106	waitpid $pid, 0 if $pid;	2320	cf::cleanup "db_open(db): $@" if $@;
1107	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;
1111	cf::_exit 0 if defined $pid;
1112	}	2321	};
1113	}
1114
1115	my $dirty;
1116
1117	sub db_sync() {
1118	db_save if $dirty;
1119	undef $dirty;
1120	}
1121
1122	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1123	db_sync;
1124	});	2322	}
		2323	}
1125		2324
1126	sub db_dirty() {
1127	$dirty = 1;
1128	$idle->start;
1129	}
1130
1131	sub db_get($;$) {	2325	sub db_get($$) {
1132	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1133	? $DB->{$_[0]}{$_[1]}
1134	: ($DB->{$_[0]} ||= { })
1135	}
1136		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1137	sub db_put($$;$) {	2336	sub db_put($$$) {
1138	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1139	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1140	} else {	2339	}
1141	$DB->{$_[0]} = $_[1];
1142	}
1143	db_dirty;
1144	}
1145		2340
1146	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1147	prio => 10000,	2342
1148	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1149	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1150	},	2373	}
1151	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1152	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	reset_signals;
		2441	local $SIG{__WARN__};
		2442	local $SIG{__DIE__};
		2443	eval {
		2444	close $fh1;
		2445
		2446	my @res = eval { $cb->(@args) };
		2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2448	};
		2449
		2450	warn $@ if $@;
		2451	_exit 0;
		2452	}
		2453	}
		2454
		2455
1153		2456
1154	#############################################################################	2457	#############################################################################
1155	# the server's main()	2458	# the server's init and main functions
		2459
		2460	sub load_facedata($) {
		2461	my ($path) = @_;
		2462
		2463	warn "loading facedata from $path\n";
		2464
		2465	my $facedata;
		2466	0 < aio_load $path, $facedata
		2467	or die "$path: $!";
		2468
		2469	$facedata = Coro::Storable::thaw $facedata;
		2470
		2471	$facedata->{version} == 2
		2472	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2473
		2474	{
		2475	my $faces = $facedata->{faceinfo};
		2476
		2477	while (my ($face, $info) = each %$faces) {
		2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2482	Coro::cede;
		2483	}
		2484
		2485	while (my ($face, $info) = each %$faces) {
		2486	next unless $info->{smooth};
		2487	my $idx = cf::face::find $face
		2488	or next;
		2489	if (my $smooth = cf::face::find $info->{smooth}) {
		2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2491	} else {
		2492	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2493	}
		2494	Coro::cede;
		2495	}
		2496	}
		2497
		2498	{
		2499	my $anims = $facedata->{animinfo};
		2500
		2501	while (my ($anim, $info) = each %$anims) {
		2502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2503	Coro::cede;
		2504	}
		2505
		2506	cf::anim::invalidate_all; # d'oh
		2507	}
		2508
		2509	1
		2510	}
		2511
		2512	sub reload_regions {
		2513	load_resource_file "$MAPDIR/regions"
		2514	or die "unable to load regions file\n";
		2515	}
		2516
		2517	sub reload_facedata {
		2518	load_facedata "$DATADIR/facedata"
		2519	or die "unable to load facedata\n";
		2520	}
		2521
		2522	sub reload_archetypes {
		2523	load_resource_file "$DATADIR/archetypes"
		2524	or die "unable to load archetypes\n";
		2525	}
		2526
		2527	sub reload_treasures {
		2528	load_resource_file "$DATADIR/treasures"
		2529	or die "unable to load treasurelists\n";
		2530	}
		2531
		2532	sub reload_resources {
		2533	warn "reloading resource files...\n";
		2534
		2535	reload_regions;
		2536	reload_facedata;
		2537	reload_archetypes;
		2538	reload_treasures;
		2539
		2540	warn "finished reloading resource files\n";
		2541	}
		2542
		2543	sub init {
		2544	reload_resources;
		2545	}
1156		2546
1157	sub cfg_load {	2547	sub cfg_load {
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2548	open my $fh, "<:utf8", "$CONFDIR/config"
1159	or return;	2549	or return;
1160		2550
1161	local $/;	2551	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2552	*CFG = YAML::Syck::Load <$fh>;
		2553
		2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2555
		2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2558
		2559	if (exists $CFG{mlockall}) {
		2560	eval {
		2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2562	and die "WARNING: m(un)lockall failed: $!\n";
		2563	};
		2564	warn $@ if $@;
		2565	}
1163	}	2566	}
1164		2567
1165	sub main {	2568	sub main {
		2569	# we must not ever block the main coroutine
		2570	local $Coro::idle = sub {
		2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2572	(async {
		2573	Event::one_event;
		2574	})->prio (Coro::PRIO_MAX);
		2575	};
		2576
1166	cfg_load;	2577	cfg_load;
1167	db_load;	2578	db_init;
1168	load_extensions;	2579	load_extensions;
		2580
		2581	$TICK_WATCHER->start;
1169	Event::loop;	2582	Event::loop;
1170	}	2583	}
1171		2584
1172	#############################################################################	2585	#############################################################################
1173	# initialisation	2586	# initialisation and cleanup
1174		2587
1175	sub _perl_reload(&) {	2588	# install some emergency cleanup handlers
		2589	BEGIN {
		2590	for my $signal (qw(INT HUP TERM)) {
		2591	Event->signal (
		2592	reentrant => 0,
		2593	data => WF_AUTOCANCEL,
		2594	signal => $signal,
		2595	prio => 0,
		2596	cb => sub {
		2597	cf::cleanup "SIG$signal";
		2598	},
		2599	);
		2600	}
		2601	}
		2602
		2603	sub emergency_save() {
		2604	my $freeze_guard = cf::freeze_mainloop;
		2605
		2606	warn "enter emergency perl save\n";
		2607
		2608	cf::sync_job {
		2609	# use a peculiar iteration method to avoid tripping on perl
		2610	# refcount bugs in for. also avoids problems with players
		2611	# and maps saved/destroyed asynchronously.
		2612	warn "begin emergency player save\n";
		2613	for my $login (keys %cf::PLAYER) {
		2614	my $pl = $cf::PLAYER{$login} or next;
		2615	$pl->valid or next;
		2616	$pl->save;
		2617	}
		2618	warn "end emergency player save\n";
		2619
		2620	warn "begin emergency map save\n";
		2621	for my $path (keys %cf::MAP) {
		2622	my $map = $cf::MAP{$path} or next;
		2623	$map->valid or next;
		2624	$map->save;
		2625	}
		2626	warn "end emergency map save\n";
		2627
		2628	warn "begin emergency database checkpoint\n";
		2629	BDB::db_env_txn_checkpoint $DB_ENV;
		2630	warn "end emergency database checkpoint\n";
		2631	};
		2632
		2633	warn "leave emergency perl save\n";
		2634	}
		2635
		2636	sub post_cleanup {
1176	my ($msg) = @_;	2637	my ($make_core) = @_;
1177		2638
1178	$msg->("reloading...");	2639	warn Carp::longmess "post_cleanup backtrace"
		2640	if $make_core;
		2641	}
1179		2642
1180	eval {	2643	sub do_reload_perl() {
1181	# cancel all watchers	2644	# can/must only be called in main
		2645	if ($Coro::current != $Coro::main) {
		2646	warn "can only reload from main coroutine";
		2647	return;
		2648	}
		2649
		2650	warn "reloading...";
		2651
		2652	warn "entering sync_job";
		2653
		2654	cf::sync_job {
		2655	cf::write_runtime; # external watchdog should not bark
		2656	cf::emergency_save;
		2657	cf::write_runtime; # external watchdog should not bark
		2658
		2659	warn "syncing database to disk";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661
		2662	# if anything goes wrong in here, we should simply crash as we already saved
		2663
		2664	warn "cancelling all WF_AUTOCANCEL watchers";
1182	for (Event::all_watchers) {	2665	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2666	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2667	}
1185		2668
1186	# unload all extensions	2669	warn "flushing outstanding aio requests";
1187	for (@exts) {	2670	for (;;) {
1188	$msg->("unloading <$_>");	2671	BDB::flush;
1189	unload_extension $_;	2672	IO::AIO::flush;
		2673	Coro::cede;
		2674	last unless IO::AIO::nreqs || BDB::nreqs;
		2675	warn "iterate...";
		2676	}
		2677
		2678	++$RELOAD;
		2679
		2680	warn "cancelling all extension coros";
		2681	$_->cancel for values %EXT_CORO;
		2682	%EXT_CORO = ();
		2683
		2684	warn "removing commands";
		2685	%COMMAND = ();
		2686
		2687	warn "removing ext commands";
		2688	%EXTCMD = ();
		2689
		2690	warn "unloading/nuking all extensions";
		2691	for my $pkg (@EXTS) {
		2692	warn "... unloading $pkg";
		2693
		2694	if (my $cb = $pkg->can ("unload")) {
		2695	eval {
		2696	$cb->($pkg);
		2697	1
		2698	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2699	}
1191		2700
		2701	warn "... nuking $pkg";
		2702	Symbol::delete_package $pkg;
		2703	}
		2704
1192	# unload all modules loaded from $LIBDIR	2705	warn "unloading all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2706	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2708
1196	$msg->("removing <$k>");	2709	warn "... unloading $k";
1197	delete $INC{$k};	2710	delete $INC{$k};
1198		2711
1199	$k =~ s/\.pm$//;	2712	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2713	$k =~ s/\//::/g;
1201		2714
…		…
1204	}	2717	}
1205		2718
1206	Symbol::delete_package $k;	2719	Symbol::delete_package $k;
1207	}	2720	}
1208		2721
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2722	warn "getting rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2723	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2725
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2726	warn "unloading cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2727	delete $INC{"cf.pm"};
		2728	delete $INC{"cf/pod.pm"};
1221		2729
1222	# don't, removes xs symbols, too,	2730	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2731	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2732	#Symbol::delete_package __PACKAGE__;
1225		2733
1226	# reload cf.pm	2734	warn "unload completed, starting to reload now";
		2735
1227	$msg->("reloading cf.pm");	2736	warn "reloading cf.pm";
1228	require cf;	2737	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2739
1231	# load config and database again	2740	warn "loading config and database again";
1232	cf::cfg_load;	2741	cf::cfg_load;
1233	cf::db_load;
1234		2742
1235	# load extensions	2743	warn "loading extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2744	cf::load_extensions;
1238		2745
1239	# reattach attachments to objects	2746	warn "reattaching attachments to objects/players";
1240	$msg->("reattach");	2747	_global_reattach; # objects, sockets
1241	_global_reattach;	2748	warn "reattaching attachments to maps";
		2749	reattach $_ for values %MAP;
		2750	warn "reattaching attachments to players";
		2751	reattach $_ for values %PLAYER;
		2752
		2753	warn "leaving sync_job";
		2754
		2755	1
		2756	} or do {
		2757	warn $@;
		2758	warn "error while reloading, exiting.";
		2759	exit 1;
1242	};	2760	};
1243	$msg->($@) if $@;
1244		2761
1245	$msg->("reloaded");	2762	warn "reloaded";
1246	};	2763	};
1247		2764
1248	sub perl_reload() {	2765	our $RELOAD_WATCHER; # used only during reload
1249	_perl_reload {	2766
1250	warn $_[0];	2767	sub reload_perl() {
1251	print "$_[0]\n";	2768	# doing reload synchronously and two reloads happen back-to-back,
		2769	# coro crashes during coro_state_free->destroy here.
		2770
		2771	$RELOAD_WATCHER ||= Event->timer (
		2772	reentrant => 0,
		2773	after => 0,
		2774	data => WF_AUTOCANCEL,
		2775	cb => sub {
		2776	do_reload_perl;
		2777	undef $RELOAD_WATCHER;
		2778	},
1252	};	2779	);
1253	}	2780	}
1254		2781
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2782	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2783	my ($who, $arg) = @_;
1259		2784
1260	if ($who->flag (FLAG_WIZ)) {	2785	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2786	$who->message ("reloading server.");
1262	warn $_[0];	2787	async { reload_perl };
1263	$who->message ($_[0]);
1264	};
1265	}	2788	}
1266	};	2789	};
1267		2790
1268	unshift @INC, $LIBDIR;	2791	unshift @INC, $LIBDIR;
1269		2792
		2793	my $bug_warning = 0;
		2794
		2795	our @WAIT_FOR_TICK;
		2796	our @WAIT_FOR_TICK_BEGIN;
		2797
		2798	sub wait_for_tick {
		2799	return unless $TICK_WATCHER->is_active;
		2800	return if $Coro::current == $Coro::main;
		2801
		2802	my $signal = new Coro::Signal;
		2803	push @WAIT_FOR_TICK, $signal;
		2804	$signal->wait;
		2805	}
		2806
		2807	sub wait_for_tick_begin {
		2808	return unless $TICK_WATCHER->is_active;
		2809	return if $Coro::current == $Coro::main;
		2810
		2811	my $signal = new Coro::Signal;
		2812	push @WAIT_FOR_TICK_BEGIN, $signal;
		2813	$signal->wait;
		2814	}
		2815
1270	$TICK_WATCHER = Event->timer (	2816	$TICK_WATCHER = Event->timer (
		2817	reentrant => 0,
		2818	parked => 1,
1271	prio => 0,	2819	prio => 0,
1272	at => $NEXT_TICK || 1,	2820	at => $NEXT_TICK || $TICK,
1273	data => WF_AUTOCANCEL,	2821	data => WF_AUTOCANCEL,
1274	cb => sub {	2822	cb => sub {
		2823	if ($Coro::current != $Coro::main) {
		2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2825	unless ++$bug_warning > 10;
		2826	return;
		2827	}
		2828
		2829	$NOW = Event::time;
		2830
1275	cf::server_tick; # one server iteration	2831	cf::server_tick; # one server iteration
1276		2832
1277	my $NOW = Event::time;	2833	$RUNTIME += $TICK;
1278	$NEXT_TICK += $TICK;	2834	$NEXT_TICK += $TICK;
1279		2835
		2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2837	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2838	Coro::async_pool {
		2839	write_runtime
		2840	or warn "ERROR: unable to write runtime file: $!";
		2841	};
		2842	}
		2843
		2844	# my $AFTER = Event::time;
		2845	# warn $AFTER - $NOW;#d#
		2846
1280	# if we are delayed by four ticks or more, skip them all	2847	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2849
1283	$TICK_WATCHER->at ($NEXT_TICK);	2850	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2851	$TICK_WATCHER->start;
		2852
		2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2854	$sig->send;
		2855	}
		2856	while (my $sig = shift @WAIT_FOR_TICK) {
		2857	$sig->send;
		2858	}
		2859
		2860	_post_tick;
1285	},	2861	},
1286	);	2862	);
1287		2863
		2864	{
		2865	BDB::max_poll_time $TICK * 0.1;
		2866	$BDB_POLL_WATCHER = Event->io (
		2867	reentrant => 0,
		2868	fd => BDB::poll_fileno,
		2869	poll => 'r',
		2870	prio => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => \&BDB::poll_cb,
		2873	);
		2874	BDB::min_parallel 8;
		2875
		2876	BDB::set_sync_prepare {
		2877	my $status;
		2878	my $current = $Coro::current;
		2879	(
		2880	sub {
		2881	$status = $!;
		2882	$current->ready; undef $current;
		2883	},
		2884	sub {
		2885	Coro::schedule while defined $current;
		2886	$! = $status;
		2887	},
		2888	)
		2889	};
		2890
		2891	unless ($DB_ENV) {
		2892	$DB_ENV = BDB::db_env_create;
		2893
		2894	cf::sync_job {
		2895	eval {
		2896	BDB::db_env_open
		2897	$DB_ENV,
		2898	$BDBDIR,
		2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2901	0666;
		2902
		2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2904
		2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2906	$DB_ENV->set_lk_detect;
		2907	};
		2908
		2909	cf::cleanup "db_env_open(db): $@" if $@;
		2910	};
		2911	}
		2912	}
		2913
		2914	{
		2915	IO::AIO::min_parallel 8;
		2916
		2917	undef $Coro::AIO::WATCHER;
1288	IO::AIO::max_poll_time $TICK * 0.2;	2918	IO::AIO::max_poll_time $TICK * 0.1;
1289		2919	$AIO_POLL_WATCHER = Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	2920	reentrant => 0,
1291	poll => 'r',
1292	prio => 5,
1293	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
		2922	fd => IO::AIO::poll_fileno,
		2923	poll => 'r',
		2924	prio => 6,
1294	cb => \&IO::AIO::poll_cb);	2925	cb => \&IO::AIO::poll_cb,
		2926	);
		2927	}
		2928
		2929	my $_log_backtrace;
		2930
		2931	sub _log_backtrace {
		2932	my ($msg, @addr) = @_;
		2933
		2934	$msg =~ s/\n//;
		2935
		2936	# limit the # of concurrent backtraces
		2937	if ($_log_backtrace < 2) {
		2938	++$_log_backtrace;
		2939	async {
		2940	my @bt = fork_call {
		2941	@addr = map { sprintf "%x", $_ } @addr;
		2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2944	or die "addr2line: $!";
		2945
		2946	my @funcs;
		2947	my @res = <$fh>;
		2948	chomp for @res;
		2949	while (@res) {
		2950	my ($func, $line) = splice @res, 0, 2, ();
		2951	push @funcs, "[$func] $line";
		2952	}
		2953
		2954	@funcs
		2955	};
		2956
		2957	LOG llevInfo, "[ABT] $msg\n";
		2958	LOG llevInfo, "[ABT] $_\n" for @bt;
		2959	--$_log_backtrace;
		2960	};
		2961	} else {
		2962	LOG llevInfo, "[ABT] $msg\n";
		2963	LOG llevInfo, "[ABT] [suppressed]\n";
		2964	}
		2965	}
		2966
		2967	# load additional modules
		2968	use cf::pod;
		2969
		2970	END { cf::emergency_save }
1295		2971
1296	1	2972	1
1297		2973

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