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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 1.274 by root, Tue Jun 5 13:05:02 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';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		194
163	# 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
164	# within the Safe compartment.	196	# within the Safe compartment.
165	for my $pkg (qw(	197	for my $pkg (qw(
166	cf::global cf::attachable	198	cf::global cf::attachable
…		…
202	$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;
203	$d	235	$d
204	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
205	}	237	}
206		238
207	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
208		240
209	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
210		242
211	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
212		244
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
221		246
222	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
223
224	=cut
225
226	sub to_json($) {
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
228	JSON::Syck::Dump $_[0]
229	}
230		248
231	=item cf::lock_wait $string	249	=item cf::lock_wait $string
232		250
233	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
234		252
…		…
240	returned.	258	returned.
241		259
242	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
243	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
244		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
245	=cut	267	=cut
246		268
247	our %LOCK;	269	our %LOCK;
248		270
249	sub lock_wait($) {	271	sub lock_wait($) {
…		…
268	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
270	}	292	}
271	}	293	}
272		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
273	sub freeze_mainloop {	301	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
275		303
276	my $guard = Coro::guard {	304	my $guard = Coro::guard {
277	$TICK_WATCHER->start;	305	$TICK_WATCHER->start;
278	$WRITE_RUNTIME_WATCHER->start;
279	};	306	};
280	$WRITE_RUNTIME_WATCHER->stop;
281	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
282	$guard	308	$guard
283	}	309	}
284		310
285	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
307		333
308	sub sync_job(&) {	334	sub sync_job(&) {
309	my ($job) = @_;	335	my ($job) = @_;
310		336
311	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
312	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
314		342
315	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
316	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
327		355
328	while ($busy) {	356	while ($busy) {
329	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
330	}	358	}
331		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
332	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
333	} else {	368	} else {
334	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
335		370
336	$job->()	371	$job->()
…		…
356		391
357	$coro	392	$coro
358	}	393	}
359		394
360	sub write_runtime {	395	sub write_runtime {
361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;	396	my $runtime = "$LOCALDIR/runtime";
362		397
363	my $runtime = cf::localdir . "/runtime";	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
		403	my $guard = cf::lock_acquire "write_runtime";
364		404
365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
366	or return;	406	or return;
367		407
368	my $value = $cf::RUNTIME + 90 + 10;	408	my $value = $cf::RUNTIME + 90 + 10;
…		…
374		414
375	# always fsync - this file is important	415	# always fsync - this file is important
376	aio_fsync $fh	416	aio_fsync $fh
377	and return;	417	and return;
378		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
379	close $fh	422	close $fh
380	or return;	423	or return;
381		424
382	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
383	and return;	426	and return;
384		427
		428	warn "runtime file written.\n";
		429
385	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
386	}	442	}
387		443
388	=back	444	=back
389		445
390	=cut	446	=cut
…		…
570	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
571		627
572	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
573	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
574	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
575	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
576		632
577	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
578	my $pkg = shift @arg;	634	my $pkg = shift @arg;
579		635
580	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
621	if (ref $_[0]) {	677	if (ref $_[0]) {
622	_object_attach @_;	678	_object_attach @_;
623	} else {	679	} else {
624	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
625	}	681	}
		682	_recalc_want;
626	};	683	};
627		684
628	# all those should be optimised	685	# all those should be optimised
629	sub cf::attachable::detach {	686	sub cf::attachable::detach {
630	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
633	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
634	reattach ($obj);	691	reattach ($obj);
635	} else {	692	} else {
636	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
637	}	694	}
		695	_recalc_want;
638	};	696	};
639		697
640	sub cf::attachable::attached {	698	sub cf::attachable::attached {
641	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
642		700
…		…
789	}	847	}
790	} else {	848	} else {
791	aio_unlink $filename;	849	aio_unlink $filename;
792	aio_unlink "$filename.pst";	850	aio_unlink "$filename.pst";
793	}	851	}
794
795	#d##TODO# nuke non .map-files if exist
796	if ($filename =~ s/\.map$//) {
797	aio_unlink $filename;
798	aio_unlink "$filename.pst";
799	}
800	}	852	}
801	}	853	}
802		854
803	sub object_freezer_as_string {	855	sub object_freezer_as_string {
804	my ($rdata, $objs) = @_;	856	my ($rdata, $objs) = @_;
…		…
810		862
811	sub object_thawer_load {	863	sub object_thawer_load {
812	my ($filename) = @_;	864	my ($filename) = @_;
813		865
814	my ($data, $av);	866	my ($data, $av);
815
816	#d#TODO remove .map if file does not exist
817	aio_stat $filename and $filename =~ s/\.map$//;
818		867
819	(aio_load $filename, $data) >= 0	868	(aio_load $filename, $data) >= 0
820	or return;	869	or return;
821		870
822	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
…		…
824	or return;	873	or return;
825	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
826	}	875	}
827		876
828	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
829	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
830	return ($data, $av);	879	return ($data, $av);
831	}	880	}
832		881
833	#############################################################################	882	#############################################################################
834	# command handling &c	883	# command handling &c
…		…
961	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
962		1011
963	=cut	1012	=cut
964		1013
965	sub playerdir($) {	1014	sub playerdir($) {
966	cf::localdir	1015	"$PLAYERDIR/"
967	. "/"
968	. cf::playerdir
969	. "/"
970	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
971	}	1017	}
972		1018
973	sub path($) {	1019	sub path($) {
974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
975		1021
976	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
977	}	1023	}
978		1024
979	sub find_active($) {	1025	sub find_active($) {
980	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
981	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
994	my $login = $_[0];	1040	my $login = $_[0];
995		1041
996	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
997		1043
998	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
999	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
1000	or return;	1053	or return;
1001	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
1002	}	1055	}
1003	}	1056	}
…		…
1040		1093
1041	=cut	1094	=cut
1042		1095
1043	sub quit_character {	1096	sub quit_character {
1044	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1045		1100
1046	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1047	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1048		1103
1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1054	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1055	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1056	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1057	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1058	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1059	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
1060	}	1135	}
1061		1136
1062	=item cf::player::list_logins	1137	=item cf::player::list_logins
1063		1138
1064	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1065	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1066		1141
1067	=cut	1142	=cut
1068		1143
1069	sub list_logins {	1144	sub list_logins {
1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1071	or return [];	1146	or return [];
1072		1147
1073	my @logins;	1148	my @logins;
1074		1149
1075	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1110	}	1185	}
1111		1186
1112	\@paths	1187	\@paths
1113	}	1188	}
1114		1189
1115	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1116		1191
1117	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1118		1193
1119	=cut	1194	=cut
1120		1195
1121	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1122	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1123		1198
1124	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1125		1200
1126	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1127	}	1202	}
1128		1203
1129	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1130		1244
1131	=back	1245	=back
1132
1133		1246
1134	=head3 cf::map	1247	=head3 cf::map
1135		1248
1136	=over 4	1249	=over 4
1137		1250
…		…
1275		1388
1276	# the original (read-only) location	1389	# the original (read-only) location
1277	sub load_path {	1390	sub load_path {
1278	my ($self) = @_;	1391	my ($self) = @_;
1279		1392
1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1393	"$MAPDIR/$self->{path}.map"
1281	}	1394	}
1282		1395
1283	# the temporary/swap location	1396	# the temporary/swap location
1284	sub save_path {	1397	sub save_path {
1285	my ($self) = @_;	1398	my ($self) = @_;
1286		1399
1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1401	"$TMPDIR/$path.map"
1289	}	1402	}
1290		1403
1291	# the unique path, undef == no special unique path	1404	# the unique path, undef == no special unique path
1292	sub uniq_path {	1405	sub uniq_path {
1293	my ($self) = @_;	1406	my ($self) = @_;
1294		1407
1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1409	"$UNIQUEDIR/$path"
1297	}	1410	}
1298		1411
1299	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1300	# all maps in C++...	1413	# all maps in C++...
1301	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1309	my ($self) = @_;	1422	my ($self) = @_;
1310		1423
1311	utf8::encode (my $save = $self->save_path);	1424	utf8::encode (my $save = $self->save_path);
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1426	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	}	1427	}
1320		1428
1321	sub load_header_from($) {	1429	sub load_header_from($) {
1322	my ($self, $path) = @_;	1430	my ($self, $path) = @_;
1323		1431
…		…
1373	$self->load_header_orig	1481	$self->load_header_orig
1374	or return;	1482	or return;
1375	$self->prepare_orig;	1483	$self->prepare_orig;
1376	}	1484	}
1377		1485
		1486	$self->default_region (cf::region::find_by_path $self->{path})
		1487	unless $self->default_region;
		1488
1378	1	1489	1
1379	}	1490	}
1380		1491
1381	sub find;	1492	sub find;
1382	sub find {	1493	sub find {
…		…
1415	my ($self) = @_;	1526	my ($self) = @_;
1416		1527
1417	local $self->{deny_reset} = 1; # loading can take a long time	1528	local $self->{deny_reset} = 1; # loading can take a long time
1418		1529
1419	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1420	my $guard = cf::lock_acquire "map_load:$path";	1533	my $guard = cf::lock_acquire "map_load:$path";
1421		1534
1422	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1423		1536
1424	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1425		1538
1426	$self->alloc;	1539	$self->alloc;
1427		1540
1428	$self->pre_load;	1541	$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;	1542	Coro::cede;
1454	$self->set_darkness_map;	1543
		1544	$self->_load_objects ($self->{load_path}, 1)
		1545	or return;
		1546
		1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1548	if delete $self->{load_original};
		1549
		1550	if (my $uniq = $self->uniq_path) {
		1551	utf8::encode $uniq;
		1552	if (aio_open $uniq, O_RDONLY, 0) {
		1553	$self->clear_unique_items;
		1554	$self->_load_objects ($uniq, 0);
		1555	}
		1556	}
		1557
		1558	Coro::cede;
		1559	# now do the right thing for maps
		1560	$self->link_multipart_objects;
1455	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1456	unless $self->difficulty;	1562	unless $self->difficulty;
1457	Coro::cede;	1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1458	$self->activate;	1572	$self->activate;
		1573	}
		1574
		1575	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1576	}
1460		1577
1461	$self->post_load;	1578	$self->post_load;
1462
1463	$self->in_memory (cf::MAP_IN_MEMORY);
1464	}	1579	}
1465		1580
1466	sub customise_for {	1581	sub customise_for {
1467	my ($self, $ob) = @_;	1582	my ($self, $ob) = @_;
1468		1583
…		…
1609	my $lock = cf::lock_acquire "map_data:$self->{path}";	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1610		1725
1611	return if $self->players;	1726	return if $self->players;
1612	return if $self->isa ("ext::map_per_player");#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1613		1728
1614	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;
1615		1730
1616	$self->in_memory (cf::MAP_SWAPPED);	1731	$self->in_memory (cf::MAP_SWAPPED);
1617		1732
1618	# need to save uniques path	1733	# need to save uniques path
1619	unless ($self->{deny_save}) {	1734	unless ($self->{deny_save}) {
…		…
1659	instantiated unique items. May block.	1774	instantiated unique items. May block.
1660		1775
1661	=cut	1776	=cut
1662		1777
1663	sub unique_maps() {	1778	sub unique_maps() {
1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1779	my $files = aio_readdir $UNIQUEDIR
1665	or return;	1780	or return;
1666		1781
1667	my @paths;	1782	my @paths;
1668		1783
1669	for (@$files) {	1784	for (@$files) {
…		…
1788	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1789		1904
1790	return if UNIVERSAL::isa $self->map, "ext::map_link";	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1791		1906
1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1793	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1794		1909
1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1796	}	1911	}
1797		1912
1798	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1799	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1800		1917
1801	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1802		1919
1803	unless ($map) {	1920	unless ($map) {
1804	# restore original map position	1921	# restore original map position
…		…
1822	$map->load;	1939	$map->load;
1823	$map->load_diag;	1940	$map->load_diag;
1824		1941
1825	return unless $self->contr->active;	1942	return unless $self->contr->active;
1826	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1828	}	1947	}
1829		1948
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)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1863		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1864	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1865		1959
1866	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1867	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1868		1965
1869	$self->enter_link;	1966	$self->enter_link;
1870		1967
1871	(async {	1968	(async {
1872	my $map = eval {	1969	my $map = eval {
1873	my $map = cf::map::find $path;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1874	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
		1974	$map = $check->($map) if $check && $map;
		1975	} else {
		1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
		1978
1875	$map	1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
1876	} or	1985	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1880	})->prio (1);	1991	})->prio (1);
1881	}	1992	}
1882		1993
1883	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1884		1995
…		…
1923		2034
1924	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1925		2036
1926	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1927	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2039	my $meta = "$RANDOMDIR/$md5.meta";
1929		2040
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2043	undef $fh;
1933	aio_rename "$meta~", $meta;	2044	aio_rename "$meta~", $meta;
…		…
1942		2053
1943	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
1944		2055
1945	if ($exit->slaying eq "/!") {	2056	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job	2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
1947	cf::sync_job { prepare_random_map $exit };	2060	cf::sync_job { prepare_random_map $exit };
1948	}	2061	}
1949		2062
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;	2064	my $hp = $exit->stats->hp;
…		…
1959	$self->goto ($slaying, $hp, $sp);	2072	$self->goto ($slaying, $hp, $sp);
1960		2073
1961	1;	2074	1;
1962	}) {	2075	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1964	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1965	. "Please report this to the dungeon master!",	2078	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2080
1968	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2082	$self->leave_link;
1970	}	2083	}
1971	})->prio (1);	2084	})->prio (1);
…		…
1984		2097
1985	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1986	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1987		2100
1988	utf8::encode $text;	2101	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2103	}
1991		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1992		2117
1993	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1994		2119
1995	Queues a query to the client, calling the given callback with	2120	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>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2093		2218
2094	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
2095		2220
2096	=pod	2221	=pod
2097		2222
2098	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
2099		2224
2100	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
2101	cf::object::player player	2226	cf::object::player player
2102	cf::player peaceful	2227	cf::player peaceful
2103	cf::map trigger	2228	cf::map trigger
…		…
2188	#############################################################################	2313	#############################################################################
2189		2314
2190	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2191		2316
2192	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2194	excludes objects.	2319	convert to/from binary).
2195		2320
2196	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.	2322	using it, it should be unique.
2198		2323
2199	=over 4	2324	=over 4
…		…
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;	2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;	2348	cf::cleanup "db_open(db): $!" if $!;
2224	};	2349	};
2225	cf::cleanup "db_open(db): $@" if $@;	2350	cf::cleanup "db_open(db): $@" if $@;
2226	};	2351	};
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	}	2352	}
2242	}	2353	}
2243		2354
2244	sub db_get($$) {	2355	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";	2356	my $key = "$_[0]/$_[1]";
2246		2357
2247	cf::sync_job {	2358	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;	2359	BDB::db_get $DB, undef, $key, my $data;
2249		2360
2250	$! ? ()	2361	$! ? ()
2251	: Compress::LZF::sthaw $data	2362	: $data
2252	}	2363	}
2253	}	2364	}
2254		2365
2255	sub db_put($$$) {	2366	sub db_put($$$) {
2256	BDB::dbreq_pri 4;	2367	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		2369	}
		2370
		2371	=item cf::cache $id => [$paths...], $processversion => $process
		2372
		2373	Generic caching function that returns the value of the resource $id,
		2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
		2403	}
		2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2258	}	2483	}
2259		2484
2260	#############################################################################	2485	#############################################################################
2261	# the server's init and main functions	2486	# the server's init and main functions
2262		2487
2263	sub load_resources {	2488	sub load_facedata($) {
2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		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;#d#
		2566	reload_archetypes;
		2567	reload_treasures;
		2568
		2569	warn "finished reloading resource files\n";
		2570	}
		2571
		2572	sub init {
		2573	reload_resources;
2266	}	2574	}
2267		2575
2268	sub cfg_load {	2576	sub cfg_load {
2269	open my $fh, "<:utf8", cf::confdir . "/config"	2577	open my $fh, "<:utf8", "$CONFDIR/config"
2270	or return;	2578	or return;
2271		2579
2272	local $/;	2580	local $/;
2273	*CFG = YAML::Syck::Load <$fh>;	2581	*CFG = YAML::Syck::Load <$fh>;
2274		2582
…		…
2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2590	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2283	and die "WARNING: m(un)lockall failed: $!\n";	2591	and die "WARNING: m(un)lockall failed: $!\n";
2284	};	2592	};
2285	warn $@ if $@;	2593	warn $@ if $@;
2286	}	2594	}
2287	}
2288
2289	sub init {
2290	load_resources;
2291	}	2595	}
2292		2596
2293	sub main {	2597	sub main {
2294	# we must not ever block the main coroutine	2598	# we must not ever block the main coroutine
2295	local $Coro::idle = sub {	2599	local $Coro::idle = sub {
…		…
2363		2667
2364	warn Carp::longmess "post_cleanup backtrace"	2668	warn Carp::longmess "post_cleanup backtrace"
2365	if $make_core;	2669	if $make_core;
2366	}	2670	}
2367		2671
2368	sub reload() {	2672	sub do_reload_perl() {
2369	# can/must only be called in main	2673	# can/must only be called in main
2370	if ($Coro::current != $Coro::main) {	2674	if ($Coro::current != $Coro::main) {
2371	warn "can only reload from main coroutine";	2675	warn "can only reload from main coroutine";
2372	return;	2676	return;
2373	}	2677	}
2374		2678
2375	warn "reloading...";	2679	warn "reloading...";
2376		2680
2377	warn "cancelling server ticker";	2681	warn "entering sync_job";
2378	$TICK_WATCHER->cancel;
2379		2682
		2683	cf::sync_job {
		2684	cf::write_runtime; # external watchdog should not bark
2380	cf::emergency_save;	2685	cf::emergency_save;
		2686	cf::write_runtime; # external watchdog should not bark
2381		2687
2382	eval {	2688	warn "syncing database to disk";
		2689	BDB::db_env_txn_checkpoint $DB_ENV;
		2690
2383	# if anything goes wrong in here, we should simply crash as we already saved	2691	# if anything goes wrong in here, we should simply crash as we already saved
2384		2692
2385	warn "cancelling all WF_AUTOCANCEL watchers";	2693	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {	2694	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;	2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}	2696	}
2389
2390	warn "syncing database to disk";
2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2392		2697
2393	warn "flushing outstanding aio requests";	2698	warn "flushing outstanding aio requests";
2394	for (;;) {	2699	for (;;) {
2395	BDB::flush;	2700	BDB::flush;
2396	IO::AIO::flush;	2701	IO::AIO::flush;
2397	Coro::cede;	2702	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;	2703	last unless IO::AIO::nreqs || BDB::nreqs;
2399	warn "iterate...";	2704	warn "iterate...";
2400	}	2705	}
2401		2706
		2707	++$RELOAD;
		2708
2402	warn "cancelling all extension coros";	2709	warn "cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;	2710	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();	2711	%EXT_CORO = ();
2405		2712
2406	warn "removing commands";	2713	warn "removing commands";
…		…
2445	Symbol::delete_package "safe::$_"	2752	Symbol::delete_package "safe::$_"
2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2447		2754
2448	warn "unloading cf.pm \"a bit\"";	2755	warn "unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	2756	delete $INC{"cf.pm"};
		2757	delete $INC{"cf/pod.pm"};
2450		2758
2451	# don't, removes xs symbols, too,	2759	# don't, removes xs symbols, too,
2452	# and global variables created in xs	2760	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	2761	#Symbol::delete_package __PACKAGE__;
2454		2762
…		…
2463		2771
2464	warn "loading extensions";	2772	warn "loading extensions";
2465	cf::load_extensions;	2773	cf::load_extensions;
2466		2774
2467	warn "reattaching attachments to objects/players";	2775	warn "reattaching attachments to objects/players";
2468	_global_reattach;	2776	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	2777	warn "reattaching attachments to maps";
2470	reattach $_ for values %MAP;	2778	reattach $_ for values %MAP;
		2779	warn "reattaching attachments to players";
		2780	reattach $_ for values %PLAYER;
2471		2781
2472	warn "loading reloadable resources";	2782	warn "leaving sync_job";
2473	load_resources;
2474		2783
2475	warn "restarting server ticker";	2784	1
2476		2785	} or do {
2477	$TICK_WATCHER->start;
2478	};
2479
2480	if ($@) {
2481	warn $@;	2786	warn $@;
2482	warn "error while reloading, exiting.";	2787	warn "error while reloading, exiting.";
2483	exit 1;	2788	exit 1;
2484	}	2789	};
2485		2790
2486	warn "reloaded";	2791	warn "reloaded";
2487	};	2792	};
2488		2793
2489	our $RELOAD_WATCHER; # used only during reload	2794	our $RELOAD_WATCHER; # used only during reload
2490		2795
		2796	sub reload_perl() {
		2797	# doing reload synchronously and two reloads happen back-to-back,
		2798	# coro crashes during coro_state_free->destroy here.
		2799
		2800	$RELOAD_WATCHER ||= Event->timer (
		2801	reentrant => 0,
		2802	after => 0,
		2803	data => WF_AUTOCANCEL,
		2804	cb => sub {
		2805	do_reload_perl;
		2806	undef $RELOAD_WATCHER;
		2807	},
		2808	);
		2809	}
		2810
2491	register_command "reload" => sub {	2811	register_command "reload" => sub {
2492	my ($who, $arg) = @_;	2812	my ($who, $arg) = @_;
2493		2813
2494	if ($who->flag (FLAG_WIZ)) {	2814	if ($who->flag (FLAG_WIZ)) {
2495	$who->message ("reloading server.");	2815	$who->message ("reloading server.");
2496		2816	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	}	2817	}
2510	};	2818	};
2511		2819
2512	unshift @INC, $LIBDIR;	2820	unshift @INC, $LIBDIR;
2513		2821
2514	my $bug_warning = 0;	2822	my $bug_warning = 0;
2515		2823
		2824	our @WAIT_FOR_TICK;
		2825	our @WAIT_FOR_TICK_BEGIN;
		2826
		2827	sub wait_for_tick {
		2828	return unless $TICK_WATCHER->is_active;
		2829	return if $Coro::current == $Coro::main;
		2830
		2831	my $signal = new Coro::Signal;
		2832	push @WAIT_FOR_TICK, $signal;
		2833	$signal->wait;
		2834	}
		2835
		2836	sub wait_for_tick_begin {
		2837	return unless $TICK_WATCHER->is_active;
		2838	return if $Coro::current == $Coro::main;
		2839
		2840	my $signal = new Coro::Signal;
		2841	push @WAIT_FOR_TICK_BEGIN, $signal;
		2842	$signal->wait;
		2843	}
		2844
		2845	my $min = 1e6;#d#
		2846	my $avg = 10;
2516	$TICK_WATCHER = Event->timer (	2847	$TICK_WATCHER = Event->timer (
2517	reentrant => 0,	2848	reentrant => 0,
2518	parked => 1,	2849	parked => 1,
2519	prio => 0,	2850	prio => 0,
2520	at => $NEXT_TICK || $TICK,	2851	at => $NEXT_TICK || $TICK,
…		…
2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2525	unless ++$bug_warning > 10;	2856	unless ++$bug_warning > 10;
2526	return;	2857	return;
2527	}	2858	}
2528		2859
2529	$NOW = Event::time;	2860	$NOW = $tick_start = Event::time;
2530		2861
2531	cf::server_tick; # one server iteration	2862	cf::server_tick; # one server iteration
		2863
		2864	0 && sync_job {#d#
		2865	for(1..10) {
		2866	my $t = Event::time;
		2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2868	or die;
		2869
		2870	$map->width (50);
		2871	$map->height (50);
		2872	$map->alloc;
		2873	$map->_load_objects ("/tmp/x.map", 1);
		2874	my $t = Event::time - $t;
		2875
		2876	#next unless $t < 0.0013;#d#
		2877	if ($t < $min) {
		2878	$min = $t;
		2879	}
		2880	$avg = $avg * 0.99 + $t * 0.01;
		2881	}
		2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2883	exit 0;
		2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2885	};
		2886
2532	$RUNTIME += $TICK;	2887	$RUNTIME += $TICK;
2533	$NEXT_TICK += $TICK;	2888	$NEXT_TICK += $TICK;
2534		2889
2535	$WAIT_FOR_TICK->broadcast;	2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
2537		2892	Coro::async_pool {
2538	Event::sweep;	2893	write_runtime
2539	Coro::cede_notself;	2894	or warn "ERROR: unable to write runtime file: $!";
		2895	};
2540		2896	}
		2897
2541	# my $AFTER = Event::time;	2898	# my $AFTER = Event::time;
2542	# warn $AFTER - $NOW;#d#	2899	# warn $AFTER - $NOW;#d#
2543		2900
		2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2902	$sig->send;
		2903	}
		2904	while (my $sig = shift @WAIT_FOR_TICK) {
		2905	$sig->send;
		2906	}
		2907
		2908	$NOW = Event::time;
		2909
2544	# if we are delayed by four ticks or more, skip them all	2910	# if we are delayed by four ticks or more, skip them all
2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2546		2912
2547	$TICK_WATCHER->at ($NEXT_TICK);	2913	$TICK_WATCHER->at ($NEXT_TICK);
2548	$TICK_WATCHER->start;	2914	$TICK_WATCHER->start;
		2915
		2916	$LOAD = ($NOW - $tick_start) / $TICK;
		2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2918
		2919	_post_tick;
		2920
		2921
2549	},	2922	},
2550	);	2923	);
2551		2924
2552	{	2925	{
2553	BDB::max_poll_time $TICK * 0.1;	2926	BDB::max_poll_time $TICK * 0.1;
…		…
2581		2954
2582	cf::sync_job {	2955	cf::sync_job {
2583	eval {	2956	eval {
2584	BDB::db_env_open	2957	BDB::db_env_open
2585	$DB_ENV,	2958	$DB_ENV,
2586	$BDB_ENV_DIR,	2959	$BDBDIR,
2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2589	0666;	2962	0666;
2590		2963
2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2592		2965
2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2594	$DB_ENV->set_lk_detect;	2967	$DB_ENV->set_lk_detect;
2595	};	2968	};
2596		2969
…		…
2604		2977
2605	undef $Coro::AIO::WATCHER;	2978	undef $Coro::AIO::WATCHER;
2606	IO::AIO::max_poll_time $TICK * 0.1;	2979	IO::AIO::max_poll_time $TICK * 0.1;
2607	$AIO_POLL_WATCHER = Event->io (	2980	$AIO_POLL_WATCHER = Event->io (
2608	reentrant => 0,	2981	reentrant => 0,
		2982	data => WF_AUTOCANCEL,
2609	fd => IO::AIO::poll_fileno,	2983	fd => IO::AIO::poll_fileno,
2610	poll => 'r',	2984	poll => 'r',
2611	prio => 6,	2985	prio => 6,
2612	data => WF_AUTOCANCEL,
2613	cb => \&IO::AIO::poll_cb,	2986	cb => \&IO::AIO::poll_cb,
2614	);	2987	);
2615	}	2988	}
2616		2989
2617	$WRITE_RUNTIME_WATCHER = Event->timer (	2990	my $_log_backtrace;
2618	reentrant => 0,	2991
2619	data => WF_AUTOCANCEL,	2992	sub _log_backtrace {
2620	after => 1,	2993	my ($msg, @addr) = @_;
2621	interval => 10,	2994
2622	prio => 6, # keep it lowest so it acts like a watchdog	2995	$msg =~ s/\n//;
2623	cb => Coro::unblock_sub {	2996
2624	write_runtime	2997	# limit the # of concurrent backtraces
2625	or warn "ERROR: unable to write runtime file: $!";	2998	if ($_log_backtrace < 2) {
		2999	++$_log_backtrace;
		3000	async {
		3001	my @bt = fork_call {
		3002	@addr = map { sprintf "%x", $_ } @addr;
		3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3005	or die "addr2line: $!";
		3006
		3007	my @funcs;
		3008	my @res = <$fh>;
		3009	chomp for @res;
		3010	while (@res) {
		3011	my ($func, $line) = splice @res, 0, 2, ();
		3012	push @funcs, "[$func] $line";
		3013	}
		3014
		3015	@funcs
		3016	};
		3017
		3018	LOG llevInfo, "[ABT] $msg\n";
		3019	LOG llevInfo, "[ABT] $_\n" for @bt;
		3020	--$_log_backtrace;
		3021	};
		3022	} else {
		3023	LOG llevInfo, "[ABT] $msg\n";
		3024	LOG llevInfo, "[ABT] [suppressed]\n";
2626	},	3025	}
2627	);	3026	}
		3027
		3028	# load additional modules
		3029	use cf::pod;
2628		3030
2629	END { cf::emergency_save }	3031	END { cf::emergency_save }
2630		3032
2631	1	3033	1
2632		3034

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