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/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.279 by root, Mon Jun 11 22:16:53 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
…		…
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
48	our $RELOAD; # number of reloads so far	57	our $RELOAD; # number of reloads so far
49	our @EVENT;	58	our @EVENT;
50	our $LIBDIR = datadir . "/ext";
51		59
52	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(!)
53	our $TICK_WATCHER;	73	our $TICK_WATCHER;
54	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	our $NEXT_TICK;	76	our $NEXT_TICK;
57	our $NOW;	77	our $NOW;
…		…
66	our $RUNTIME;	86	our $RUNTIME;
67		87
68	our %PLAYER; # all users	88	our %PLAYER; # all users
69	our %MAP; # all maps	89	our %MAP; # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
71	our $RANDOM_MAPS = cf::localdir . "/random";
72	our $BDB_ENV_DIR = cf::localdir . "/db";
73
74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76		91
77	# 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 ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		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 $tick_start; # for load detecting purposes
		98
80	binmode STDOUT;	99	binmode STDOUT;
81	binmode STDERR;	100	binmode STDERR;
82		101
83	# read virtual server time, if available	102	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
85	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
86	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
87	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
88	}	107	}
89		108
90	mkdir cf::localdir;	109	mkdir $_
91	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
92	mkdir cf::localdir . "/" . cf::tmpdir;
93	mkdir cf::localdir . "/" . cf::uniquedir;
94	mkdir $RANDOM_MAPS;
95	mkdir $BDB_ENV_DIR;
96		111
97	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
98		113
99	sub cf::map::normalise;	114	sub cf::map::normalise;
100		115
…		…
111	=item $cf::RUNTIME	126	=item $cf::RUNTIME
112		127
113	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
114	every server tick.	129	every server tick.
115		130
116	=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
117		134
118	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
119	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.
120		139
121	=item $cf::NOW	140	=item $cf::NOW
122		141
123	The time of the last (current) server tick.	142	The time of the last (current) server tick.
124		143
125	=item $cf::TICK	144	=item $cf::TICK
126		145
127	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.
128		157
129	=item %cf::CFG	158	=item %cf::CFG
130		159
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
132	from wherever your confdir points to.	161	from wherever your confdir points to.
133		162
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		164
136	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
137	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
138	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.
139	window of cpu time available, or simply to synchronise to the server tick.
140		168
141	=back	169	=back
142		170
143	=cut	171	=cut
144		172
145	BEGIN {	173	BEGIN {
146	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
147	my $msg = join "", @_;	175	my $msg = join "", @_;
148	utf8::encode $msg;
149		176
150	$msg .= "\n"	177	$msg .= "\n"
151	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
152		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
153	LOG llevError, $msg;	183	LOG llevError, $msg;
154	};	184	};
155	}	185	}
156		186
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
162	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
163		194
164	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
165	# within the Safe compartment.	196	# within the Safe compartment.
166	for my $pkg (qw(	197	for my $pkg (qw(
167	cf::global cf::attachable	198	cf::global cf::attachable
…		…
203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204	$d	235	$d
205	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
206	}	237	}
207		238
208	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
209		240
210	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
211		242
212	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
213		244
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
222		246
223	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
224
225	=cut
226
227	sub to_json($) {
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
229	JSON::Syck::Dump $_[0]
230	}
231		248
232	=item cf::lock_wait $string	249	=item cf::lock_wait $string
233		250
234	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
235		252
…		…
241	returned.	258	returned.
242		259
243	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
244	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
245		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
246	=cut	267	=cut
247		268
248	our %LOCK;	269	our %LOCK;
249		270
250	sub lock_wait($) {	271	sub lock_wait($) {
…		…
267		288
268	Coro::guard {	289	Coro::guard {
269	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
271	}	292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
272	}	299	}
273		300
274	sub freeze_mainloop {	301	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
276		303
…		…
306		333
307	sub sync_job(&) {	334	sub sync_job(&) {
308	my ($job) = @_;	335	my ($job) = @_;
309		336
310	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
311	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
313		342
314	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
315	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
326		355
327	while ($busy) {	356	while ($busy) {
328	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
329	}	358	}
330		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
331	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
332	} else {	368	} else {
333	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
334		370
335	$job->()	371	$job->()
…		…
355		391
356	$coro	392	$coro
357	}	393	}
358		394
359	sub write_runtime {	395	sub write_runtime {
		396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
360	my $guard = cf::lock_acquire "write_runtime";	403	my $guard = cf::lock_acquire "write_runtime";
361
362	my $runtime = cf::localdir . "/runtime";
363		404
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
365	or return;	406	or return;
366		407
367	my $value = $cf::RUNTIME + 90 + 10;	408	my $value = $cf::RUNTIME + 90 + 10;
…		…
373		414
374	# always fsync - this file is important	415	# always fsync - this file is important
375	aio_fsync $fh	416	aio_fsync $fh
376	and return;	417	and return;
377		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
378	close $fh	422	close $fh
379	or return;	423	or return;
380		424
381	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
382	and return;	426	and return;
383		427
		428	warn "runtime file written.\n";
		429
384	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	442	}
386		443
387	=back	444	=back
388		445
389	=cut	446	=cut
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
570		627
571	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		632
576	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	634	my $pkg = shift @arg;
578		635
579	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
620	if (ref $_[0]) {	677	if (ref $_[0]) {
621	_object_attach @_;	678	_object_attach @_;
622	} else {	679	} else {
623	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
624	}	681	}
		682	_recalc_want;
625	};	683	};
626		684
627	# all those should be optimised	685	# all those should be optimised
628	sub cf::attachable::detach {	686	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
633	reattach ($obj);	691	reattach ($obj);
634	} else {	692	} else {
635	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
636	}	694	}
		695	_recalc_want;
637	};	696	};
638		697
639	sub cf::attachable::attached {	698	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
641		700
…		…
814	or return;	873	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
816	}	875	}
817		876
818	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	879	return ($data, $av);
821	}	880	}
822		881
823	#############################################################################	882	#############################################################################
824	# command handling &c	883	# command handling &c
…		…
884		943
885	cf::override;	944	cf::override;
886	},	945	},
887	);	946	);
888		947
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
924	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	953	next unless -r $path;
926	eval {	954
927	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
928	1	1012	}
929	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
930	}	1018	};
931	}	1019	}
932		1020
933	#############################################################################	1021	#############################################################################
934		1022
935	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
…		…
951	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
952		1040
953	=cut	1041	=cut
954		1042
955	sub playerdir($) {	1043	sub playerdir($) {
956	cf::localdir	1044	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1046	}
962		1047
963	sub path($) {	1048	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1050
966	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
967	}	1052	}
968		1053
969	sub find_active($) {	1054	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
984	my $login = $_[0];	1069	my $login = $_[0];
985		1070
986	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
987		1072
988	$cf::PLAYER{$_[0]} || do {	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
989	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
990	or return;	1082	or return;
991	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
992	}	1084	}
993	}	1085	}
…		…
1077	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1078		1170
1079	=cut	1171	=cut
1080		1172
1081	sub list_logins {	1173	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1175	or return [];
1084		1176
1085	my @logins;	1177	my @logins;
1086		1178
1087	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1122	}	1214	}
1123		1215
1124	\@paths	1216	\@paths
1125	}	1217	}
1126		1218
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1128		1220
1129	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1130		1222
1131	=cut	1223	=cut
1132		1224
1133	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1134	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1135		1227
1136	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1137		1229
1138	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1139	}	1231	}
1140		1232
1141	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1142		1273
1143	=back	1274	=back
1144
1145		1275
1146	=head3 cf::map	1276	=head3 cf::map
1147		1277
1148	=over 4	1278	=over 4
1149		1279
…		…
1204	my ($self, $merge) = @_;	1334	my ($self, $merge) = @_;
1205		1335
1206	# we have to keep some variables in memory intact	1336	# we have to keep some variables in memory intact
1207	local $self->{path};	1337	local $self->{path};
1208	local $self->{load_path};	1338	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		1339
1212	$self->SUPER::thawer_merge ($merge);	1340	$self->SUPER::thawer_merge ($merge);
1213	}	1341	}
1214		1342
1215	sub normalise {	1343	sub normalise {
…		…
1287		1415
1288	# the original (read-only) location	1416	# the original (read-only) location
1289	sub load_path {	1417	sub load_path {
1290	my ($self) = @_;	1418	my ($self) = @_;
1291		1419
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1420	"$MAPDIR/$self->{path}.map"
1293	}	1421	}
1294		1422
1295	# the temporary/swap location	1423	# the temporary/swap location
1296	sub save_path {	1424	sub save_path {
1297	my ($self) = @_;	1425	my ($self) = @_;
1298		1426
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1428	"$TMPDIR/$path.map"
1301	}	1429	}
1302		1430
1303	# the unique path, undef == no special unique path	1431	# the unique path, undef == no special unique path
1304	sub uniq_path {	1432	sub uniq_path {
1305	my ($self) = @_;	1433	my ($self) = @_;
1306		1434
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1436	"$UNIQUEDIR/$path"
1309	}	1437	}
1310		1438
1311	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1312	# all maps in C++...	1440	# all maps in C++...
1313	sub change_all_map_light {	1441	sub change_all_map_light {
1314	my ($change) = @_;	1442	my ($change) = @_;
1315		1443
1316	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1317	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
		1446	}
		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
1318	}	1454	}
1319		1455
1320	sub unlink_save {	1456	sub unlink_save {
1321	my ($self) = @_;	1457	my ($self) = @_;
1322		1458
…		…
1380	$self->load_header_orig	1516	$self->load_header_orig
1381	or return;	1517	or return;
1382	$self->prepare_orig;	1518	$self->prepare_orig;
1383	}	1519	}
1384		1520
		1521	$self->{deny_reset} = 1
		1522	if $self->no_reset;
		1523
		1524	$self->default_region (cf::region::find_by_path $self->{path})
		1525	unless $self->default_region;
		1526
1385	1	1527	1
1386	}	1528	}
1387		1529
1388	sub find;	1530	sub find;
1389	sub find {	1531	sub find {
…		…
1401	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1402		1544
1403	$map->load_header	1545	$map->load_header
1404	or return;	1546	or return;
1405		1547
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	1549	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	1550	#$cf::WAIT_FOR_TICK->wait;
1409	$map->reset;	1551	$map->reset;
1410	undef $guard;	1552	undef $guard;
1411	return find $path;	1553	return find $path;
…		…
1422	my ($self) = @_;	1564	my ($self) = @_;
1423		1565
1424	local $self->{deny_reset} = 1; # loading can take a long time	1566	local $self->{deny_reset} = 1; # loading can take a long time
1425		1567
1426	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1427	my $guard = cf::lock_acquire "map_load:$path";	1571	my $guard = cf::lock_acquire "map_load:$path";
1428		1572
1429	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1430		1574
1431	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1432		1576
1433	$self->alloc;	1577	$self->alloc;
1434		1578
1435	$self->pre_load;	1579	$self->pre_load;
1436
1437	$self->_load_objects ($self->{load_path}, 1)
1438	or return;
1439
1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1441	if delete $self->{load_original};
1442
1443	if (my $uniq = $self->uniq_path) {
1444	utf8::encode $uniq;
1445	if (aio_open $uniq, O_RDONLY, 0) {
1446	$self->clear_unique_items;
1447	$self->_load_objects ($uniq, 0);
1448	}
1449	}
1450
1451	Coro::cede;
1452
1453	# now do the right thing for maps
1454	$self->link_multipart_objects;
1455
1456	unless ($self->{deny_activate}) {
1457	$self->decay_objects;
1458	$self->fix_auto_apply;
1459	$self->update_buttons;
1460	Coro::cede;	1580	Coro::cede;
1461	$self->set_darkness_map;	1581
		1582	$self->_load_objects ($self->{load_path}, 1)
		1583	or return;
		1584
		1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1586	if delete $self->{load_original};
		1587
		1588	if (my $uniq = $self->uniq_path) {
		1589	utf8::encode $uniq;
		1590	if (aio_open $uniq, O_RDONLY, 0) {
		1591	$self->clear_unique_items;
		1592	$self->_load_objects ($uniq, 0);
		1593	}
		1594	}
		1595
		1596	Coro::cede;
		1597	# now do the right thing for maps
		1598	$self->link_multipart_objects;
1462	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	1600	unless $self->difficulty;
1464	Coro::cede;	1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1465	$self->activate;	1610	$self->activate;
		1611	}
		1612
		1613	$self->in_memory (cf::MAP_IN_MEMORY);
1466	}	1614	}
1467		1615
1468	$self->post_load;	1616	$self->post_load;
1469
1470	$self->in_memory (cf::MAP_IN_MEMORY);
1471	}	1617	}
1472		1618
1473	sub customise_for {	1619	sub customise_for {
1474	my ($self, $ob) = @_;	1620	my ($self, $ob) = @_;
1475		1621
1476	return find "~" . $ob->name . "/" . $self->{path}	1622	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
1478		1627
1479	$self	1628	$self
1480	}	1629	}
1481		1630
1482	# find and load all maps in the 3x3 area around a map	1631	# find and load all maps in the 3x3 area around a map
…		…
1593		1742
1594	sub reset_at {	1743	sub reset_at {
1595	my ($self) = @_;	1744	my ($self) = @_;
1596		1745
1597	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1599	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1600		1748
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		1751
…		…
1614	my ($self) = @_;	1762	my ($self) = @_;
1615		1763
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		1765
1618	return if $self->players;	1766	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		1767
1621	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
1622		1769
1623	$self->in_memory (cf::MAP_SWAPPED);	1770	$self->in_memory (cf::MAP_SWAPPED);
1624		1771
1625	# need to save uniques path	1772	# need to save uniques path
1626	unless ($self->{deny_save}) {	1773	unless ($self->{deny_save}) {
…		…
1658	$cf::MAP{$self->path} = $self;	1805	$cf::MAP{$self->path} = $self;
1659		1806
1660	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1661	}	1808	}
1662		1809
		1810	=item $maps = cf::map::tmp_maps
		1811
		1812	Returns an arrayref with all map paths of currently instantiated and saved
		1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
		1818	[
		1819	map {
		1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
		1826	}
		1827
		1828	=item $maps = cf::map::random_maps
		1829
		1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
		1832
		1833	=cut
		1834
		1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
		1844	}
		1845
1663	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1664		1847
1665	Returns an arrayref of paths of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	1849	instantiated unique items. May block.
1667		1850
1668	=cut	1851	=cut
1669		1852
1670	sub unique_maps() {	1853	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1672	or return;	1855	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	1856	utf8::decode $_;
1678	next if /\.pst$/;	1857	/\.map$/
1679	next unless /^$PATH_SEP/o;	1858	? normalise $_
1680		1859	: ()
1681	push @paths, cf::map::normalise $_;	1860	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	1861	]
1683
1684	\@paths
1685	}	1862	}
1686		1863
1687	package cf;	1864	package cf;
1688		1865
1689	=back	1866	=back
…		…
1795	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1796		1973
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		1975
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1801		1978
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1803	}	1980	}
1804		1981
1805	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1807		1986
1808	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1809		1988
1810	unless ($map) {	1989	unless ($map) {
1811	# restore original map position	1990	# restore original map position
…		…
1834		2013
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1837	}	2016	}
1838		2017
1839	cf::player->attach (
1840	on_logout => sub {
1841	my ($pl) = @_;
1842
1843	# abort map switching before logout
1844	if ($pl->ob->{_link_pos}) {
1845	cf::sync_job {
1846	$pl->ob->leave_link
1847	};
1848	}
1849	},
1850	on_login => sub {
1851	my ($pl) = @_;
1852
1853	# try to abort aborted map switching on player login :)
1854	# should happen only on crashes
1855	if ($pl->ob->{_link_pos}) {
1856	$pl->ob->enter_link;
1857	(async {
1858	$pl->ob->reply (undef,
1859	"There was an internal problem at your last logout, "
1860	. "the server will try to bring you to your intended destination in a second.",
1861	cf::NDI_RED);
1862	# we need this sleep as the login has a concurrent enter_exit running
1863	# and this sleep increases chances of the player not ending up in scorn
1864	Coro::Timer::sleep 1;
1865	$pl->ob->leave_link;
1866	})->prio (2);
1867	}
1868	},
1869	);
1870
1871	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1872		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1873	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1874		2028
1875	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
		2031
		2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2034
1878	$self->enter_link;	2035	$self->enter_link;
1879		2036
1880	(async {	2037	(async {
1881	my $map = eval {	2038	my $map = eval {
1882	my $map = cf::map::find $path;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
		2043	$map = $check->($map) if $check && $map;
		2044	} else {
		2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
		2047
1884	$map	2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2054	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1889	})->prio (1);	2060	})->prio (1);
1890	}	2061	}
1891		2062
1892	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1893		2064
…		…
1932		2103
1933	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1934		2105
1935	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1936	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2108	my $meta = "$RANDOMDIR/$md5.meta";
1938		2109
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	2112	undef $fh;
1942	aio_rename "$meta~", $meta;	2113	aio_rename "$meta~", $meta;
…		…
1951		2122
1952	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
1953		2124
1954	if ($exit->slaying eq "/!") {	2125	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job	2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
1956	cf::sync_job { prepare_random_map $exit };	2129	cf::sync_job { prepare_random_map $exit };
1957	}	2130	}
1958		2131
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;	2133	my $hp = $exit->stats->hp;
…		…
1968	$self->goto ($slaying, $hp, $sp);	2141	$self->goto ($slaying, $hp, $sp);
1969		2142
1970	1;	2143	1;
1971	}) {	2144	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1973	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1976		2149
1977	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1978	$self->leave_link;	2151	$self->leave_link;
1979	}	2152	}
1980	})->prio (1);	2153	})->prio (1);
…		…
1993		2166
1994	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1995	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1996		2169
1997	utf8::encode $text;	2170	utf8::encode $text;
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999	}	2172	}
2000		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
2001		2186
2002	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
2003		2188
2004	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2102		2287
2103	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
2104		2289
2105	=pod	2290	=pod
2106		2291
2107	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
2108		2293
2109	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
2110	cf::object::player player	2295	cf::object::player player
2111	cf::player peaceful	2296	cf::player peaceful
2112	cf::map trigger	2297	cf::map trigger
…		…
2197	#############################################################################	2382	#############################################################################
2198		2383
2199	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2200		2385
2201	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2202	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2203	excludes objects.	2388	convert to/from binary).
2204		2389
2205	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
2206	using it, it should be unique.	2391	using it, it should be unique.
2207		2392
2208	=over 4	2393	=over 4
…		…
2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;	2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232	cf::cleanup "db_open(db): $!" if $!;	2417	cf::cleanup "db_open(db): $!" if $!;
2233	};	2418	};
2234	cf::cleanup "db_open(db): $@" if $@;	2419	cf::cleanup "db_open(db): $@" if $@;
2235	};	2420	};
2236
2237	my $path = cf::localdir . "/database.pst";
2238	if (stat $path) {
2239	cf::sync_job {
2240	my $pst = Storable::retrieve $path;
2241
2242	cf::db_put (board => data => $pst->{board});
2243	cf::db_put (guildrules => data => $pst->{guildrules});
2244	cf::db_put (rent => balance => $pst->{rent}{balance});
2245	BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247	unlink $path;
2248	};
2249	}
2250	}	2421	}
2251	}	2422	}
2252		2423
2253	sub db_get($$) {	2424	sub db_get($$) {
2254	my $key = "$_[0]/$_[1]";	2425	my $key = "$_[0]/$_[1]";
2255		2426
2256	cf::sync_job {	2427	cf::sync_job {
2257	BDB::db_get $DB, undef, $key, my $data;	2428	BDB::db_get $DB, undef, $key, my $data;
2258		2429
2259	$! ? ()	2430	$! ? ()
2260	: Compress::LZF::sthaw $data	2431	: $data
2261	}	2432	}
2262	}	2433	}
2263		2434
2264	sub db_put($$$) {	2435	sub db_put($$$) {
2265	BDB::dbreq_pri 4;	2436	BDB::dbreq_pri 4;
2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		2438	}
		2439
		2440	=item cf::cache $id => [$paths...], $processversion => $process
		2441
		2442	Generic caching function that returns the value of the resource $id,
		2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
		2472	}
		2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2267	}	2552	}
2268		2553
2269	#############################################################################	2554	#############################################################################
2270	# the server's init and main functions	2555	# the server's init and main functions
2271		2556
2272	sub load_faces {	2557	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	2558	my ($path) = @_;
2274		2559
2275	warn "loading faces from $path\n";	2560	warn "loading facedata from $path\n";
2276		2561
2277	my $faces;	2562	my $facedata;
2278	0 < aio_load $path, $faces	2563	0 < aio_load $path, $facedata
2279	or die "$path: $!";	2564	or die "$path: $!";
2280		2565
2281	Coro::cede;
2282	$faces = Storable::thaw $faces;	2566	$facedata = Coro::Storable::thaw $facedata;
2283	Coro::cede;
2284		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
2285	while (my ($face, $info) = each %$faces) {	2574	while (my ($face, $info) = each %$faces) {
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2289	Coro::cede;	2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
2290	}	2604	}
2291		2605
2292	1	2606	1
2293	}	2607	}
2294		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
2295	sub reload_resources {	2629	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2630	warn "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	2631
		2632	reload_regions;
2298	load_faces	2633	reload_facedata;
2299	or die "unable to load faces\n";#d#	2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
2300	}	2639	}
2301		2640
2302	sub init {	2641	sub init {
2303	reload_resources;	2642	reload_resources;
2304	}	2643	}
2305		2644
2306	sub cfg_load {	2645	sub cfg_load {
2307	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2308	or return;	2647	or return;
2309		2648
2310	local $/;	2649	local $/;
2311	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2312		2651
…		…
2397		2736
2398	warn Carp::longmess "post_cleanup backtrace"	2737	warn Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	2738	if $make_core;
2400	}	2739	}
2401		2740
2402	sub reload() {	2741	sub do_reload_perl() {
2403	# can/must only be called in main	2742	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2405	warn "can only reload from main coroutine";	2744	warn "can only reload from main coroutine";
2406	return;	2745	return;
2407	}	2746	}
…		…
2482	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		2823
2485	warn "unloading cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2487		2827
2488	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2489	# and global variables created in xs	2829	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2491		2831
…		…
2506	warn "reattaching attachments to maps";	2846	warn "reattaching attachments to maps";
2507	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	2848	warn "reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	2849	reattach $_ for values %PLAYER;
2510		2850
2511	warn "loading reloadable resources";
2512	reload_resources;
2513
2514	warn "leaving sync_job";	2851	warn "leaving sync_job";
2515		2852
2516	1	2853	1
2517	} or do {	2854	} or do {
2518	warn $@;	2855	warn $@;
…		…
2523	warn "reloaded";	2860	warn "reloaded";
2524	};	2861	};
2525		2862
2526	our $RELOAD_WATCHER; # used only during reload	2863	our $RELOAD_WATCHER; # used only during reload
2527		2864
		2865	sub reload_perl() {
		2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
		2868
		2869	$RELOAD_WATCHER ||= Event->timer (
		2870	reentrant => 0,
		2871	after => 0,
		2872	data => WF_AUTOCANCEL,
		2873	cb => sub {
		2874	do_reload_perl;
		2875	undef $RELOAD_WATCHER;
		2876	},
		2877	);
		2878	}
		2879
2528	register_command "reload" => sub {	2880	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2530		2882
2531	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	2884	$who->message ("reloading server.");
2533		2885	async { reload_perl };
2534	# doing reload synchronously and two reloads happen back-to-back,
2535	# coro crashes during coro_state_free->destroy here.
2536
2537	$RELOAD_WATCHER ||= Event->timer (
2538	reentrant => 0,
2539	after => 0,
2540	data => WF_AUTOCANCEL,
2541	cb => sub {
2542	reload;
2543	undef $RELOAD_WATCHER;
2544	},
2545	);
2546	}	2886	}
2547	};	2887	};
2548		2888
2549	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2550		2890
2551	my $bug_warning = 0;	2891	my $bug_warning = 0;
2552		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2553	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2554	reentrant => 0,	2917	reentrant => 0,
2555	parked => 1,	2918	parked => 1,
2556	prio => 0,	2919	prio => 0,
2557	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
…		…
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	2925	unless ++$bug_warning > 10;
2563	return;	2926	return;
2564	}	2927	}
2565		2928
2566	$NOW = Event::time;	2929	$NOW = $tick_start = Event::time;
2567		2930
2568	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2569	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2571		2958
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2575	write_runtime	2962	write_runtime
2576	or warn "ERROR: unable to write runtime file: $!";	2963	or warn "ERROR: unable to write runtime file: $!";
2577	};	2964	};
2578	}	2965	}
2579		2966
2580	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583	# my $AFTER = Event::time;	2967	# my $AFTER = Event::time;
2584	# warn $AFTER - $NOW;#d#	2968	# warn $AFTER - $NOW;#d#
2585		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
		2978
2586	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2588		2981
2589	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2590	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2591	},	2991	},
2592	);	2992	);
2593		2993
2594	{	2994	{
2595	BDB::max_poll_time $TICK * 0.1;	2995	BDB::max_poll_time $TICK * 0.1;
…		…
2623		3023
2624	cf::sync_job {	3024	cf::sync_job {
2625	eval {	3025	eval {
2626	BDB::db_env_open	3026	BDB::db_env_open
2627	$DB_ENV,	3027	$DB_ENV,
2628	$BDB_ENV_DIR,	3028	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	3031	0666;
2632		3032
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634		3034
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;	3036	$DB_ENV->set_lk_detect;
2637	};	3037	};
2638		3038
…		…
2654	prio => 6,	3054	prio => 6,
2655	cb => \&IO::AIO::poll_cb,	3055	cb => \&IO::AIO::poll_cb,
2656	);	3056	);
2657	}	3057	}
2658		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
		3094	}
		3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
		3099
2659	END { cf::emergency_save }	3100	END { cf::emergency_save }
2660		3101
2661	1	3102	1
2662		3103

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