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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.211 by root, Tue Feb 13 16:23:32 2007 UTC vs.
Revision 1.272 by root, Sun Jun 3 15:32:50 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 3.5 ();	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;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
20	use BDB ();	25	use BDB ();
21	use Data::Dumper;	26	use Data::Dumper;
22	use Digest::MD5;	27	use Digest::MD5;
23	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
24	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	31	use Time::HiRes;
27	use Compress::LZF;	32	use Compress::LZF;
28		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
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		39
31	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
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		41
35	# 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?
36	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
37		44
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
39		48
40	our %COMMAND = ();	49	our %COMMAND = ();
41	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
42		51
43	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	53	our %EXTCMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
47		56
		57	our $RELOAD; # number of reloads so far
48	our @EVENT;	58	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		59
51	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(!)
52	our $TICK_WATCHER;	73	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
54	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	76	our $NEXT_TICK;
56	our $NOW;	77	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		79
59	our $BDB_POLL_WATCHER;	80	our $BDB_POLL_WATCHER;
…		…
65	our $RUNTIME;	86	our $RUNTIME;
66		87
67	our %PLAYER; # all users	88	our %PLAYER; # all users
68	our %MAP; # all maps	89	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		91
76	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
79	binmode STDOUT;	99	binmode STDOUT;
80	binmode STDERR;	100	binmode STDERR;
81		101
82	# read virtual server time, if available	102	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
87	}	107	}
88		108
89	mkdir cf::localdir;	109	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		111
96	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
97		113
98	sub cf::map::normalise;	114	sub cf::map::normalise;
99		115
…		…
110	=item $cf::RUNTIME	126	=item $cf::RUNTIME
111		127
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	129	every server tick.
114		130
115	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		134
117	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
119		139
120	=item $cf::NOW	140	=item $cf::NOW
121		141
122	The time of the last (current) server tick.	142	The time of the last (current) server tick.
123		143
124	=item $cf::TICK	144	=item $cf::TICK
125		145
126	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
127		157
128	=item %cf::CFG	158	=item %cf::CFG
129		159
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	161	from wherever your confdir points to.
132		162
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		164
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.
139		168
140	=back	169	=back
141		170
142	=cut	171	=cut
143		172
144	BEGIN {	173	BEGIN {
145	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	175	my $msg = join "", @_;
147	utf8::encode $msg;
148		176
149	$msg .= "\n"	177	$msg .= "\n"
150	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
151		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
152	LOG llevError, $msg;	183	LOG llevError, $msg;
153	};	184	};
154	}	185	}
155		186
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	234	$d
204	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
205	}	236	}
206		237
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
208		239
209	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
210		241
211	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
212		243
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
221		245
222	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
223
224	=cut
225
226	sub to_json($) {
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
228	JSON::Syck::Dump $_[0]
229	}
230		247
231	=item cf::lock_wait $string	248	=item cf::lock_wait $string
232		249
233	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
234		251
…		…
240	returned.	257	returned.
241		258
242	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
244		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
245	=cut	266	=cut
246		267
247	our %LOCK;	268	our %LOCK;
248		269
249	sub lock_wait($) {	270	sub lock_wait($) {
…		…
268	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
270	}	291	}
271	}	292	}
272		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
273	sub freeze_mainloop {	300	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
275		302
276	my $guard = Coro::guard {	303	my $guard = Coro::guard {
277	$TICK_WATCHER->start;	304	$TICK_WATCHER->start;
278	$WRITE_RUNTIME_WATCHER->start;
279	};	305	};
280	$WRITE_RUNTIME_WATCHER->stop;
281	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
282	$guard	307	$guard
283	}	308	}
284		309
285	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
307		332
308	sub sync_job(&) {	333	sub sync_job(&) {
309	my ($job) = @_;	334	my ($job) = @_;
310		335
311	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
312	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
314		341
315	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
316	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
327		354
328	while ($busy) {	355	while ($busy) {
329	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
330	}	357	}
331		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
332	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
333	} else {	367	} else {
334	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
335		369
336	$job->()	370	$job->()
…		…
356		390
357	$coro	391	$coro
358	}	392	}
359		393
360	sub write_runtime {	394	sub write_runtime {
361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;	395	my $runtime = "$LOCALDIR/runtime";
362		396
363	my $runtime = cf::localdir . "/runtime";	397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
364		403
365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
366	or return;	405	or return;
367		406
368	my $value = $cf::RUNTIME + 90 + 10;	407	my $value = $cf::RUNTIME + 90 + 10;
…		…
374		413
375	# always fsync - this file is important	414	# always fsync - this file is important
376	aio_fsync $fh	415	aio_fsync $fh
377	and return;	416	and return;
378		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
379	close $fh	421	close $fh
380	or return;	422	or return;
381		423
382	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
383	and return;	425	and return;
384		426
		427	warn "runtime file written.\n";#d#
		428
385	1	429	1
		430	}
		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
386	}	441	}
387		442
388	=back	443	=back
389		444
390	=cut	445	=cut
…		…
570	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
571		626
572	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
573	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
574	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
575	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
576		631
577	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
578	my $pkg = shift @arg;	633	my $pkg = shift @arg;
579		634
580	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
621	if (ref $_[0]) {	676	if (ref $_[0]) {
622	_object_attach @_;	677	_object_attach @_;
623	} else {	678	} else {
624	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
625	}	680	}
		681	_recalc_want;
626	};	682	};
627		683
628	# all those should be optimised	684	# all those should be optimised
629	sub cf::attachable::detach {	685	sub cf::attachable::detach {
630	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
633	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
634	reattach ($obj);	690	reattach ($obj);
635	} else {	691	} else {
636	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
637	}	693	}
		694	_recalc_want;
638	};	695	};
639		696
640	sub cf::attachable::attached {	697	sub cf::attachable::attached {
641	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
642		699
…		…
789	}	846	}
790	} else {	847	} else {
791	aio_unlink $filename;	848	aio_unlink $filename;
792	aio_unlink "$filename.pst";	849	aio_unlink "$filename.pst";
793	}	850	}
794
795	#d##TODO# nuke non .map-files if exist
796	if ($filename =~ s/\.map$//) {
797	aio_unlink $filename;
798	aio_unlink "$filename.pst";
799	}
800	}	851	}
801	}	852	}
802		853
803	sub object_freezer_as_string {	854	sub object_freezer_as_string {
804	my ($rdata, $objs) = @_;	855	my ($rdata, $objs) = @_;
…		…
810		861
811	sub object_thawer_load {	862	sub object_thawer_load {
812	my ($filename) = @_;	863	my ($filename) = @_;
813		864
814	my ($data, $av);	865	my ($data, $av);
815
816	#d#TODO remove .map if file does not exist
817	aio_stat $filename and $filename =~ s/\.map$//;
818		866
819	(aio_load $filename, $data) >= 0	867	(aio_load $filename, $data) >= 0
820	or return;	868	or return;
821		869
822	unless (aio_stat "$filename.pst") {	870	unless (aio_stat "$filename.pst") {
…		…
961	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
962		1010
963	=cut	1011	=cut
964		1012
965	sub playerdir($) {	1013	sub playerdir($) {
966	cf::localdir	1014	"$PLAYERDIR/"
967	. "/"
968	. cf::playerdir
969	. "/"
970	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
971	}	1016	}
972		1017
973	sub path($) {	1018	sub path($) {
974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
975		1020
976	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
977	}	1022	}
978		1023
979	sub find_active($) {	1024	sub find_active($) {
980	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
981	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
994	my $login = $_[0];	1039	my $login = $_[0];
995		1040
996	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
997		1042
998	$cf::PLAYER{$_[0]} || do {	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
999	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1000	or return;	1052	or return;
1001	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1002	}	1054	}
1003	}	1055	}
…		…
1040		1092
1041	=cut	1093	=cut
1042		1094
1043	sub quit_character {	1095	sub quit_character {
1044	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1045		1099
1046	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1047	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1048		1102
1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1054	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1055	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1056	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1057	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1058	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1059	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
1060	}	1134	}
1061		1135
1062	=item cf::player::list_logins	1136	=item cf::player::list_logins
1063		1137
1064	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1065	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1066		1140
1067	=cut	1141	=cut
1068		1142
1069	sub list_logins {	1143	sub list_logins {
1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1071	or return [];	1145	or return [];
1072		1146
1073	my @logins;	1147	my @logins;
1074		1148
1075	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1110	}	1184	}
1111		1185
1112	\@paths	1186	\@paths
1113	}	1187	}
1114		1188
1115	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1116		1190
1117	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1118		1192
1119	=cut	1193	=cut
1120		1194
1121	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1122	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1123		1197
1124	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1125		1199
1126	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1127	}	1201	}
1128		1202
1129	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1130		1243
1131	=back	1244	=back
1132
1133		1245
1134	=head3 cf::map	1246	=head3 cf::map
1135		1247
1136	=over 4	1248	=over 4
1137		1249
…		…
1275		1387
1276	# the original (read-only) location	1388	# the original (read-only) location
1277	sub load_path {	1389	sub load_path {
1278	my ($self) = @_;	1390	my ($self) = @_;
1279		1391
1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1392	"$MAPDIR/$self->{path}.map"
1281	}	1393	}
1282		1394
1283	# the temporary/swap location	1395	# the temporary/swap location
1284	sub save_path {	1396	sub save_path {
1285	my ($self) = @_;	1397	my ($self) = @_;
1286		1398
1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1400	"$TMPDIR/$path.map"
1289	}	1401	}
1290		1402
1291	# the unique path, undef == no special unique path	1403	# the unique path, undef == no special unique path
1292	sub uniq_path {	1404	sub uniq_path {
1293	my ($self) = @_;	1405	my ($self) = @_;
1294		1406
1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1408	"$UNIQUEDIR/$path"
1297	}	1409	}
1298		1410
1299	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1300	# all maps in C++...	1412	# all maps in C++...
1301	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1309	my ($self) = @_;	1421	my ($self) = @_;
1310		1422
1311	utf8::encode (my $save = $self->save_path);	1423	utf8::encode (my $save = $self->save_path);
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1314
1315	#d#TODO remove .map and also nuke
1316	$save =~ s/\.map// or return;#d#
1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1319	}	1426	}
1320		1427
1321	sub load_header_from($) {	1428	sub load_header_from($) {
1322	my ($self, $path) = @_;	1429	my ($self, $path) = @_;
1323		1430
…		…
1373	$self->load_header_orig	1480	$self->load_header_orig
1374	or return;	1481	or return;
1375	$self->prepare_orig;	1482	$self->prepare_orig;
1376	}	1483	}
1377		1484
		1485	$self->default_region (cf::region::find_by_path $self->{path})
		1486	unless $self->default_region;
		1487
1378	1	1488	1
1379	}	1489	}
1380		1490
1381	sub find;	1491	sub find;
1382	sub find {	1492	sub find {
…		…
1415	my ($self) = @_;	1525	my ($self) = @_;
1416		1526
1417	local $self->{deny_reset} = 1; # loading can take a long time	1527	local $self->{deny_reset} = 1; # loading can take a long time
1418		1528
1419	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1420	my $guard = cf::lock_acquire "map_load:$path";	1532	my $guard = cf::lock_acquire "map_load:$path";
1421		1533
1422	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1423		1535
1424	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1425		1537
1426	$self->alloc;	1538	$self->alloc;
1427		1539
1428	$self->pre_load;	1540	$self->pre_load;
1429
1430	$self->_load_objects ($self->{load_path}, 1)
1431	or return;
1432
1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1434	if delete $self->{load_original};
1435
1436	if (my $uniq = $self->uniq_path) {
1437	utf8::encode $uniq;
1438	if (aio_open $uniq, O_RDONLY, 0) {
1439	$self->clear_unique_items;
1440	$self->_load_objects ($uniq, 0);
1441	}
1442	}
1443
1444	Coro::cede;
1445
1446	# now do the right thing for maps
1447	$self->link_multipart_objects;
1448
1449	unless ($self->{deny_activate}) {
1450	$self->decay_objects;
1451	$self->fix_auto_apply;
1452	$self->update_buttons;
1453	Coro::cede;	1541	Coro::cede;
1454	$self->set_darkness_map;	1542
		1543	$self->_load_objects ($self->{load_path}, 1)
		1544	or return;
		1545
		1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1547	if delete $self->{load_original};
		1548
		1549	if (my $uniq = $self->uniq_path) {
		1550	utf8::encode $uniq;
		1551	if (aio_open $uniq, O_RDONLY, 0) {
		1552	$self->clear_unique_items;
		1553	$self->_load_objects ($uniq, 0);
		1554	}
		1555	}
		1556
		1557	Coro::cede;
		1558	# now do the right thing for maps
		1559	$self->link_multipart_objects;
1455	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1456	unless $self->difficulty;	1561	unless $self->difficulty;
1457	Coro::cede;	1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1458	$self->activate;	1571	$self->activate;
		1572	}
		1573
		1574	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1575	}
1460		1576
1461	$self->post_load;	1577	$self->post_load;
1462
1463	$self->in_memory (cf::MAP_IN_MEMORY);
1464	}	1578	}
1465		1579
1466	sub customise_for {	1580	sub customise_for {
1467	my ($self, $ob) = @_;	1581	my ($self, $ob) = @_;
1468		1582
…		…
1659	instantiated unique items. May block.	1773	instantiated unique items. May block.
1660		1774
1661	=cut	1775	=cut
1662		1776
1663	sub unique_maps() {	1777	sub unique_maps() {
1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1778	my $files = aio_readdir $UNIQUEDIR
1665	or return;	1779	or return;
1666		1780
1667	my @paths;	1781	my @paths;
1668		1782
1669	for (@$files) {	1783	for (@$files) {
…		…
1788	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1789		1903
1790	return if UNIVERSAL::isa $self->map, "ext::map_link";	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1791		1905
1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1793	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1794		1908
1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1796	}	1910	}
1797		1911
1798	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1799	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1800		1916
1801	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1802		1918
1803	unless ($map) {	1919	unless ($map) {
1804	# restore original map position	1920	# restore original map position
…		…
1822	$map->load;	1938	$map->load;
1823	$map->load_diag;	1939	$map->load_diag;
1824		1940
1825	return unless $self->contr->active;	1941	return unless $self->contr->active;
1826	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1828	}	1946	}
1829		1947
1830	cf::player->attach (
1831	on_logout => sub {
1832	my ($pl) = @_;
1833
1834	# abort map switching before logout
1835	if ($pl->ob->{_link_pos}) {
1836	cf::sync_job {
1837	$pl->ob->leave_link
1838	};
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843
1844	# try to abort aborted map switching on player login :)
1845	# should happen only on crashes
1846	if ($pl->ob->{_link_pos}) {
1847	$pl->ob->enter_link;
1848	(async {
1849	# we need this sleep as the login has a concurrent enter_exit running
1850	# and this sleep increases chances of the player not ending up in scorn
1851	$pl->ob->reply (undef,
1852	"There was an internal problem at your last logout, "
1853	. "the server will try to bring you to your intended destination in a second.",
1854	cf::NDI_RED);
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861
1862	=item $player_object->goto ($path, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1863		1949
		1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
		1954
1864	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1865		1958
1866	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1867	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
		1961
		1962	# do generation counting so two concurrent goto's will be executed in-order
		1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1868		1964
1869	$self->enter_link;	1965	$self->enter_link;
1870		1966
1871	(async {	1967	(async {
1872	my $map = eval {	1968	my $map = eval {
1873	my $map = cf::map::find $path;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1874	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
		1973	$map = $check->($map) if $check && $map;
		1974	} else {
		1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
		1977
1875	$map	1978	$map
		1979	};
		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
1876	} or	1984	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1880	})->prio (1);	1990	})->prio (1);
1881	}	1991	}
1882		1992
1883	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1884		1994
…		…
1923		2033
1924	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1925		2035
1926	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1927	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2038	my $meta = "$RANDOMDIR/$md5.meta";
1929		2039
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2042	undef $fh;
1933	aio_rename "$meta~", $meta;	2043	aio_rename "$meta~", $meta;
…		…
1942		2052
1943	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
1944		2054
1945	if ($exit->slaying eq "/!") {	2055	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job	2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
1947	cf::sync_job { prepare_random_map $exit };	2059	cf::sync_job { prepare_random_map $exit };
1948	}	2060	}
1949		2061
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;	2063	my $hp = $exit->stats->hp;
…		…
1959	$self->goto ($slaying, $hp, $sp);	2071	$self->goto ($slaying, $hp, $sp);
1960		2072
1961	1;	2073	1;
1962	}) {	2074	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1964	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1965	. "Please report this to the dungeon master!",	2077	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2079
1968	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2081	$self->leave_link;
1970	}	2082	}
1971	})->prio (1);	2083	})->prio (1);
…		…
1984		2096
1985	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1986	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1987		2099
1988	utf8::encode $text;	2100	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2102	}
1991		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1992		2116
1993	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1994		2118
1995	Queues a query to the client, calling the given callback with	2119	Queues a query to the client, calling the given callback with
1996	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2093		2217
2094	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
2095		2219
2096	=pod	2220	=pod
2097		2221
2098	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
2099		2223
2100	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
2101	cf::object::player player	2225	cf::object::player player
2102	cf::player peaceful	2226	cf::player peaceful
2103	cf::map trigger	2227	cf::map trigger
…		…
2188	#############################################################################	2312	#############################################################################
2189		2313
2190	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
2191		2315
2192	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2194	excludes objects.	2318	convert to/from binary).
2195		2319
2196	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.	2321	using it, it should be unique.
2198		2322
2199	=over 4	2323	=over 4
…		…
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;	2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;	2347	cf::cleanup "db_open(db): $!" if $!;
2224	};	2348	};
2225	cf::cleanup "db_open(db): $@" if $@;	2349	cf::cleanup "db_open(db): $@" if $@;
2226	};	2350	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}	2351	}
2242	}	2352	}
2243		2353
2244	sub db_get($$) {	2354	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";	2355	my $key = "$_[0]/$_[1]";
2246		2356
2247	cf::sync_job {	2357	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;	2358	BDB::db_get $DB, undef, $key, my $data;
2249		2359
2250	$! ? ()	2360	$! ? ()
2251	: Compress::LZF::sthaw $data	2361	: $data
2252	}	2362	}
2253	}	2363	}
2254		2364
2255	sub db_put($$$) {	2365	sub db_put($$$) {
2256	BDB::dbreq_pri 4;	2366	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		2368	}
		2369
		2370	=item cf::cache $id => [$paths...], $processversion => $process
		2371
		2372	Generic caching function that returns the value of the resource $id,
		2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
		2402	}
		2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
2258	}	2482	}
2259		2483
2260	#############################################################################	2484	#############################################################################
2261	# the server's init and main functions	2485	# the server's init and main functions
2262		2486
2263	sub load_resources {	2487	sub load_facedata($) {
2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	warn "$face $info->{magicmap}\n" if $face =~ /obol/;#d#
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
2265	or die "unable to load regions file\n";#d#	2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
2266	}	2573	}
2267		2574
2268	sub cfg_load {	2575	sub cfg_load {
2269	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
2270	or return;	2577	or return;
2271		2578
2272	local $/;	2579	local $/;
2273	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
2274		2581
…		…
2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2283	and die "WARNING: m(un)lockall failed: $!\n";	2590	and die "WARNING: m(un)lockall failed: $!\n";
2284	};	2591	};
2285	warn $@ if $@;	2592	warn $@ if $@;
2286	}	2593	}
2287	}
2288
2289	sub init {
2290	load_resources;
2291	}	2594	}
2292		2595
2293	sub main {	2596	sub main {
2294	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
2295	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
…		…
2363		2666
2364	warn Carp::longmess "post_cleanup backtrace"	2667	warn Carp::longmess "post_cleanup backtrace"
2365	if $make_core;	2668	if $make_core;
2366	}	2669	}
2367		2670
2368	sub reload() {	2671	sub do_reload_perl() {
2369	# can/must only be called in main	2672	# can/must only be called in main
2370	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
2371	warn "can only reload from main coroutine";	2674	warn "can only reload from main coroutine";
2372	return;	2675	return;
2373	}	2676	}
2374		2677
2375	warn "reloading...";	2678	warn "reloading...";
2376		2679
2377	warn "cancelling server ticker";	2680	warn "entering sync_job";
2378	$TICK_WATCHER->cancel;
2379		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
2380	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
2381		2686
2382	eval {	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
2383	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
2384		2691
2385	warn "cancelling all WF_AUTOCANCEL watchers";	2692	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}	2695	}
2389
2390	warn "syncing database to disk";
2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2392		2696
2393	warn "flushing outstanding aio requests";	2697	warn "flushing outstanding aio requests";
2394	for (;;) {	2698	for (;;) {
2395	BDB::flush;	2699	BDB::flush;
2396	IO::AIO::flush;	2700	IO::AIO::flush;
2397	Coro::cede;	2701	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;	2702	last unless IO::AIO::nreqs || BDB::nreqs;
2399	warn "iterate...";	2703	warn "iterate...";
2400	}	2704	}
2401		2705
		2706	++$RELOAD;
		2707
2402	warn "cancelling all extension coros";	2708	warn "cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();	2710	%EXT_CORO = ();
2405		2711
2406	warn "removing commands";	2712	warn "removing commands";
…		…
2445	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2447		2753
2448	warn "unloading cf.pm \"a bit\"";	2754	warn "unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
2450		2757
2451	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
2452	# and global variables created in xs	2759	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
2454		2761
…		…
2463		2770
2464	warn "loading extensions";	2771	warn "loading extensions";
2465	cf::load_extensions;	2772	cf::load_extensions;
2466		2773
2467	warn "reattaching attachments to objects/players";	2774	warn "reattaching attachments to objects/players";
2468	_global_reattach;	2775	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	2776	warn "reattaching attachments to maps";
2470	reattach $_ for values %MAP;	2777	reattach $_ for values %MAP;
		2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
2471		2780
2472	warn "loading reloadable resources";	2781	warn "leaving sync_job";
2473	load_resources;
2474		2782
2475	warn "restarting server ticker";	2783	1
2476		2784	} or do {
2477	$TICK_WATCHER->start;
2478	};
2479
2480	if ($@) {
2481	warn $@;	2785	warn $@;
2482	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
2483	exit 1;	2787	exit 1;
2484	}	2788	};
2485		2789
2486	warn "reloaded";	2790	warn "reloaded";
2487	};	2791	};
2488		2792
2489	our $RELOAD_WATCHER; # used only during reload	2793	our $RELOAD_WATCHER; # used only during reload
2490		2794
		2795	sub reload_perl() {
		2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
		2798
		2799	$RELOAD_WATCHER ||= Event->timer (
		2800	reentrant => 0,
		2801	after => 0,
		2802	data => WF_AUTOCANCEL,
		2803	cb => sub {
		2804	do_reload_perl;
		2805	undef $RELOAD_WATCHER;
		2806	},
		2807	);
		2808	}
		2809
2491	register_command "reload" => sub {	2810	register_command "reload" => sub {
2492	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
2493		2812
2494	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
2495	$who->message ("reloading server.");	2814	$who->message ("reloading server.");
2496		2815	async { reload_perl };
2497	# doing reload synchronously and two reloads happen back-to-back,
2498	# coro crashes during coro_state_free->destroy here.
2499
2500	$RELOAD_WATCHER ||= Event->timer (
2501	reentrant => 0,
2502	after => 0,
2503	data => WF_AUTOCANCEL,
2504	cb => sub {
2505	reload;
2506	undef $RELOAD_WATCHER;
2507	},
2508	);
2509	}	2816	}
2510	};	2817	};
2511		2818
2512	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
2513		2820
2514	my $bug_warning = 0;	2821	my $bug_warning = 0;
2515		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
2516	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
2517	reentrant => 0,	2847	reentrant => 0,
2518	parked => 1,	2848	parked => 1,
2519	prio => 0,	2849	prio => 0,
2520	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
…		…
2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2525	unless ++$bug_warning > 10;	2855	unless ++$bug_warning > 10;
2526	return;	2856	return;
2527	}	2857	}
2528		2858
2529	$NOW = Event::time;	2859	$NOW = $tick_start = Event::time;
2530		2860
2531	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
		2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2884	};
		2885
2532	$RUNTIME += $TICK;	2886	$RUNTIME += $TICK;
2533	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2534		2888
2535	$WAIT_FOR_TICK->broadcast;	2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
2537		2891	Coro::async_pool {
2538	Event::sweep;	2892	write_runtime
2539	Coro::cede_notself;	2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
2540		2895	}
		2896
2541	# my $AFTER = Event::time;	2897	# my $AFTER = Event::time;
2542	# warn $AFTER - $NOW;#d#	2898	# warn $AFTER - $NOW;#d#
2543		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
		2908
2544	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2546		2911
2547	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2548	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2549	},	2921	},
2550	);	2922	);
2551		2923
2552	{	2924	{
2553	BDB::max_poll_time $TICK * 0.1;	2925	BDB::max_poll_time $TICK * 0.1;
…		…
2581		2953
2582	cf::sync_job {	2954	cf::sync_job {
2583	eval {	2955	eval {
2584	BDB::db_env_open	2956	BDB::db_env_open
2585	$DB_ENV,	2957	$DB_ENV,
2586	$BDB_ENV_DIR,	2958	$BDBDIR,
2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2589	0666;	2961	0666;
2590		2962
2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2592		2964
2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2594	$DB_ENV->set_lk_detect;	2966	$DB_ENV->set_lk_detect;
2595	};	2967	};
2596		2968
…		…
2604		2976
2605	undef $Coro::AIO::WATCHER;	2977	undef $Coro::AIO::WATCHER;
2606	IO::AIO::max_poll_time $TICK * 0.1;	2978	IO::AIO::max_poll_time $TICK * 0.1;
2607	$AIO_POLL_WATCHER = Event->io (	2979	$AIO_POLL_WATCHER = Event->io (
2608	reentrant => 0,	2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
2609	fd => IO::AIO::poll_fileno,	2982	fd => IO::AIO::poll_fileno,
2610	poll => 'r',	2983	poll => 'r',
2611	prio => 6,	2984	prio => 6,
2612	data => WF_AUTOCANCEL,
2613	cb => \&IO::AIO::poll_cb,	2985	cb => \&IO::AIO::poll_cb,
2614	);	2986	);
2615	}	2987	}
2616		2988
2617	$WRITE_RUNTIME_WATCHER = Event->timer (	2989	my $_log_backtrace;
2618	reentrant => 0,	2990
2619	data => WF_AUTOCANCEL,	2991	sub _log_backtrace {
2620	after => 1,	2992	my ($msg, @addr) = @_;
2621	interval => 10,	2993
2622	prio => 6, # keep it lowest so it acts like a watchdog	2994	$msg =~ s/\n//;
2623	cb => Coro::unblock_sub {	2995
2624	write_runtime	2996	# limit the # of concurrent backtraces
2625	or warn "ERROR: unable to write runtime file: $!";	2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
2626	},	3024	}
2627	);	3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
2628		3029
2629	END { cf::emergency_save }	3030	END { cf::emergency_save }
2630		3031
2631	1	3032	1
2632		3033

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