[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
…		…
164		167
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	169	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
		177
169	=back	178	=back
170		179
171	=cut	180	=cut
172		181
173	BEGIN {	182	BEGIN {
…		…
206	}	215	}
207		216
208	$Event::DIED = sub {	217	$Event::DIED = sub {
209	warn "error in event callback: @_";	218	warn "error in event callback: @_";
210	};	219	};
		220
		221	#############################################################################
211		222
212	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
213		224
214	=over 4	225	=over 4
215		226
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	246	$d
236	} \|\| "[unable to dump $_[0]: '$@']";	247	} \|\| "[unable to dump $_[0]: '$@']";
237	}	248	}
238		249
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
242		251
243	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
244		253
245	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
246		255
247	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
248		264
249	=item cf::lock_wait $string	265	=item cf::lock_wait $string
250		266
251	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
252		268
…		…
318		334
319	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
320		336
321	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
322		338
323	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
326		343
327	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
330	fast or be very important.	347	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
391		408
392	$coro	409	$coro
393	}	410	}
394		411
395	sub write_runtime {	412	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		413
398	# first touch the runtime file to show we are still running:	414	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
400		418
401	IO::AIO::aio_utime $runtime, undef, undef;	419	=cut
402		420
403	my $guard = cf::lock_acquire "write_runtime";	421	sub _store_scalar {
404		422	open my $fh, ">", \my $buf
405	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	423	or die "fork_call: cannot open fh-to-buf in child : $!";
406	or return;	424	Storable::store_fd $_[0], $fh;
407
408	my $value = $cf::RUNTIME + 90 + 10;
409	# 10 is the runtime save interval, for a monotonic clock
410	# 60 allows for the watchdog to kill the server.
411
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
413	and return;
414
415	# always fsync - this file is important
416	aio_fsync $fh
417	and return;
418
419	# touch it again to show we are up-to-date
420	aio_utime $fh, undef, undef;
421
422	close $fh	425	close $fh;
423	or return;
424		426
425	aio_rename "$runtime~", $runtime	427	$buf
426	and return;	428	}
427		429
428	warn "runtime file written.\n";	430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
429		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
430	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
431	}	588	}
432		589
433	=item cf::datalog type => key => value, ...	590	=item cf::datalog type => key => value, ...
434		591
435	Log a datalog packet of the given type with the given key-value pairs.	592	Log a datalog packet of the given type with the given key-value pairs.
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
455		612
456	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	615	Crossfire TRT).
459		616
460	=over 4	617	=over 4
461		618
462	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
463		620
…		…
665	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
666	}	823	}
667		824
668	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
669	} else {	826	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	828	}
672		829
673	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
674	}	831	}
675		832
…		…
715	";	872	";
716	die if $@;	873	die if $@;
717	}	874	}
718		875
719	our $override;	876	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		878
722	sub override {	879	sub override {
723	$override = 1;	880	$override = 1;
724	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
725	}	882	}
726		883
727	sub do_invoke {	884	sub do_invoke {
728	my $event = shift;	885	my $event = shift;
729	my $callbacks = shift;	886	my $callbacks = shift;
730		887
731	@invoke_results = ();	888	@INVOKE_RESULTS = ();
732		889
733	local $override;	890	local $override;
734		891
735	for (@$callbacks) {	892	for (@$callbacks) {
736	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
753		910
754	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
755		912
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		916
760	=back	917	=back
761		918
762	=cut	919	=cut
763		920
764	#############################################################################	921	#############################################################################
765	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
766		934
767	sub reattach {	935	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	937	my ($obj) = @_;
770		938
…		…
877	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av \|\| []};	1046	$filename, length $data, scalar @{$av \|\| []};
879	return ($data, $av);	1047	return ($data, $av);
880	}	1048	}
881		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
		1055
882	#############################################################################	1056	#############################################################################
883	# command handling &c	1057	# command handling &c
884		1058
885	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
886		1060
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1073	}
900		1074
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1076
903	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
904		1082
905	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
906	called.	1084	called.
907		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
908	=cut	1097	=cut
909		1098
910	sub register_extcmd {	1099	sub register_extcmd {
911	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
912		1101
913	$EXTCMD{$name} = $cb;	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
914	}	1109	}
915		1110
916	cf::player->attach (	1111	cf::player->attach (
917	on_command => sub {	1112	on_command => sub {
918	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1122	cf::override;
928	},	1123	},
929	on_extcmd => sub {	1124	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
931		1126
932	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1128
934	if (ref $msg) {	1129	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
943		1138
944	cf::override;	1139	cf::override;
945	},	1140	},
946	);	1141	);
947		1142
948	sub load_extension {
949	my ($path) = @_;
950
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
952	my $base = $1;
953	my $pkg = $1;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}
976	die $@;
977	}
978
979	push @EXTS, $pkg;
980	}
981
982	sub load_extensions {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
983	for my $ext (<$LIBDIR/*.ext>) {	1147	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1148	next unless -r $path;
985	eval {	1149
986	load_extension $ext;	1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
987	1	1207	}
988	} or warn "$ext not loaded: $@";	1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
989	}	1213	};
990	}	1214	}
991		1215
992	#############################################################################	1216	#############################################################################
		1217
		1218	=back
993		1219
994	=head2 CORE EXTENSIONS	1220	=head2 CORE EXTENSIONS
995		1221
996	Functions and methods that extend core crossfire objects.	1222	Functions and methods that extend core crossfire objects.
997		1223
…		…
1185	}	1411	}
1186		1412
1187	\@paths	1413	\@paths
1188	}	1414	}
1189		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&/g;
		1427	s/(?<![BIUGH])</</g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male\|female> tags
		1437	\|\| s{G<([^>\|])\\|([^>])>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	\|\| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
1190	=item $player->ext_reply ($msgid, %msg)	1466	=item $player->ext_reply ($msgid, %msg)
1191		1467
1192	Sends an ext reply to the player.	1468	Sends an ext reply to the player.
1193		1469
1194	=cut	1470	=cut
1195		1471
1196	sub ext_reply($$%) {	1472	sub ext_reply($$%) {
1197	my ($self, $id, %msg) = @_;	1473	my ($self, $id, %msg) = @_;
1198		1474
1199	$msg{msgid} = $id;	1475	$msg{msgid} = $id;
1200		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1477	}
1203		1478
1204	=item $player->ext_event ($type, %msg)	1479	=item $player->ext_event ($type, %msg)
1205		1480
1206	Sends an ext event to the client.	1481	Sends an ext event to the client.
…		…
1221		1496
1222	package cf::region;	1497	package cf::region;
1223		1498
1224	=item cf::region::find_by_path $path	1499	=item cf::region::find_by_path $path
1225		1500
1226	Tries to decuce the probable region for a map knowing only its path.	1501	Tries to decuce the likely region for a map knowing only its path.
1227		1502
1228	=cut	1503	=cut
1229		1504
1230	sub find_by_path($) {	1505	sub find_by_path($) {
1231	my ($path) = @_;	1506	my ($path) = @_;
1232		1507
1233	my ($match, $specificity);	1508	my ($match, $specificity);
1234		1509
1235	for my $region (list) {	1510	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1511	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1512	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1513	if $region->specificity > $specificity;
1239	}	1514	}
1240	}	1515	}
1241		1516
…		…
1305	my ($self, $merge) = @_;	1580	my ($self, $merge) = @_;
1306		1581
1307	# we have to keep some variables in memory intact	1582	# we have to keep some variables in memory intact
1308	local $self->{path};	1583	local $self->{path};
1309	local $self->{load_path};	1584	local $self->{load_path};
1310	local $self->{deny_save};
1311	local $self->{deny_reset};
1312		1585
1313	$self->SUPER::thawer_merge ($merge);	1586	$self->SUPER::thawer_merge ($merge);
1314	}	1587	}
1315		1588
1316	sub normalise {	1589	sub normalise {
…		…
1363	$self->init; # pass $1 etc.	1636	$self->init; # pass $1 etc.
1364	return $self;	1637	return $self;
1365	}	1638	}
1366	}	1639	}
1367		1640
1368	Carp::carp "unable to resolve path '$path' (base '$base').";	1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
1369	()	1642	()
1370	}	1643	}
1371		1644
1372	sub init {	1645	sub init {
1373	my ($self) = @_;	1646	my ($self) = @_;
…		…
1414	sub change_all_map_light {	1687	sub change_all_map_light {
1415	my ($change) = @_;	1688	my ($change) = @_;
1416		1689
1417	$_->change_map_light ($change)	1690	$_->change_map_light ($change)
1418	for grep $_->outdoor, values %cf::MAP;	1691	for grep $_->outdoor, values %cf::MAP;
		1692	}
		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
1419	}	1700	}
1420		1701
1421	sub unlink_save {	1702	sub unlink_save {
1422	my ($self) = @_;	1703	my ($self) = @_;
1423		1704
…		…
1481	$self->load_header_orig	1762	$self->load_header_orig
1482	or return;	1763	or return;
1483	$self->prepare_orig;	1764	$self->prepare_orig;
1484	}	1765	}
1485		1766
		1767	$self->{deny_reset} = 1
		1768	if $self->no_reset;
		1769
1486	$self->default_region (cf::region::find_by_path $self->{path})	1770	$self->default_region (cf::region::find_by_path $self->{path})
1487	unless $self->default_region;	1771	unless $self->default_region;
1488		1772
1489	1	1773	1
1490	}	1774	}
…		…
1505	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1506		1790
1507	$map->load_header	1791	$map->load_header
1508	or return;	1792	or return;
1509		1793
1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1511	# doing this can freeze the server in a sync job, obviously	1795	# doing this can freeze the server in a sync job, obviously
1512	#$cf::WAIT_FOR_TICK->wait;	1796	#$cf::WAIT_FOR_TICK->wait;
1513	$map->reset;	1797	$map->reset;
1514	undef $guard;	1798	undef $guard;
1515	return find $path;	1799	return find $path;
…		…
1582	my ($self, $ob) = @_;	1866	my ($self, $ob) = @_;
1583		1867
1584	return find "~" . $ob->name . "/" . $self->{path}	1868	return find "~" . $ob->name . "/" . $self->{path}
1585	if $self->per_player;	1869	if $self->per_player;
1586		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
1587	$self	1874	$self
1588	}	1875	}
1589		1876
1590	# find and load all maps in the 3x3 area around a map	1877	# find and load all maps in the 3x3 area around a map
1591	sub load_diag {	1878	sub load_diag {
…		…
1637		1924
1638	undef $MAP_PREFETCH{$path};	1925	undef $MAP_PREFETCH{$path};
1639	$MAP_PREFETCHER \|\|= cf::async {	1926	$MAP_PREFETCHER \|\|= cf::async {
1640	while (%MAP_PREFETCH) {	1927	while (%MAP_PREFETCH) {
1641	for my $path (keys %MAP_PREFETCH) {	1928	for my $path (keys %MAP_PREFETCH) {
1642	my $map = find $path	1929	if (my $map = find $path) {
1643	or next;
1644	$map->load;	1930	$map->load;
		1931	}
1645		1932
1646	delete $MAP_PREFETCH{$path};	1933	delete $MAP_PREFETCH{$path};
1647	}	1934	}
1648	}	1935	}
1649	undef $MAP_PREFETCHER;	1936	undef $MAP_PREFETCHER;
…		…
1701		1988
1702	sub reset_at {	1989	sub reset_at {
1703	my ($self) = @_;	1990	my ($self) = @_;
1704		1991
1705	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1707	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1708		1994
1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1711		1997
…		…
1722	my ($self) = @_;	2008	my ($self) = @_;
1723		2009
1724	my $lock = cf::lock_acquire "map_data:$self->{path}";	2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
1725		2011
1726	return if $self->players;	2012	return if $self->players;
1727	return if $self->isa ("ext::map_per_player");#d#
1728		2013
1729	warn "resetting map ", $self->path;	2014	warn "resetting map ", $self->path;
1730		2015
1731	$self->in_memory (cf::MAP_SWAPPED);	2016	$self->in_memory (cf::MAP_SWAPPED);
1732		2017
…		…
1766	$cf::MAP{$self->path} = $self;	2051	$cf::MAP{$self->path} = $self;
1767		2052
1768	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1769	}	2054	}
1770		2055
		2056	=item $maps = cf::map::tmp_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item $maps = cf::map::random_maps
		2075
		2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
		2078
		2079	=cut
		2080
		2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
1771	=item cf::map::unique_maps	2092	=item cf::map::unique_maps
1772		2093
1773	Returns an arrayref of paths of all shared maps that have	2094	Returns an arrayref of paths of all shared maps that have
1774	instantiated unique items. May block.	2095	instantiated unique items. May block.
1775		2096
1776	=cut	2097	=cut
1777		2098
1778	sub unique_maps() {	2099	sub unique_maps() {
1779	my $files = aio_readdir $UNIQUEDIR	2100	[
1780	or return;	2101	map {
1781
1782	my @paths;
1783
1784	for (@$files) {
1785	utf8::decode $_;	2102	utf8::decode $_;
1786	next if /\.pst$/;	2103	/\.map$/
1787	next unless /^$PATH_SEP/o;	2104	? normalise $_
1788		2105	: ()
1789	push @paths, cf::map::normalise $_;	2106	} @{ aio_readdir $UNIQUEDIR or [] }
1790	}	2107	]
1791
1792	\@paths
1793	}	2108	}
1794		2109
1795	package cf;	2110	package cf;
1796		2111
1797	=back	2112	=back
…		…
1843		2158
1844	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1845		2160
1846	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1847	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1848	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1849	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1850	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1851	}	2180	}
1852	}	2181	}
1853		2182
1854	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1855		2184
…		…
1944		2273
1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1946	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1947	}	2276	}
1948		2277
1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1950		2279
1951	Moves the player to the given map-path and coordinates by first freezing	2280	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	2281	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	2282	that has to return the map if sucecssful, and then unfreezes the player on
1954	the new (success) or old (failed) map position.	2283	the new (success) or old (failed) map position. In either case, $done will
		2284	be called at the end of this process.
1955		2285
1956	=cut	2286	=cut
1957		2287
1958	our $GOTOGEN;	2288	our $GOTOGEN;
1959		2289
1960	sub cf::object::player::goto {	2290	sub cf::object::player::goto {
1961	my ($self, $path, $x, $y, $check) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
1962		2292
1963	# do generation counting so two concurrent goto's will be executed in-order	2293	# do generation counting so two concurrent goto's will be executed in-order
1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1965		2295
1966	$self->enter_link;	2296	$self->enter_link;
…		…
1986		2316
1987	if ($gen == $self->{_goto_generation}) {	2317	if ($gen == $self->{_goto_generation}) {
1988	delete $self->{_goto_generation};	2318	delete $self->{_goto_generation};
1989	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
1990	}	2320	}
		2321
		2322	$done->() if $done;
1991	})->prio (1);	2323	})->prio (1);
1992	}	2324	}
1993		2325
1994	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1995		2327
…		…
2064	my $hp = $exit->stats->hp;	2396	my $hp = $exit->stats->hp;
2065	my $sp = $exit->stats->sp;	2397	my $sp = $exit->stats->sp;
2066		2398
2067	$self->enter_link;	2399	$self->enter_link;
2068		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
		2404
2069	(async {	2405	(async {
2070	$self->deactivate_recursive; # just to be sure	2406	$self->deactivate_recursive; # just to be sure
2071	unless (eval {	2407	unless (eval {
2072	$self->goto ($slaying, $hp, $sp);	2408	$self->goto ($slaying, $hp, $sp);
2073		2409
…		…
2100		2436
2101	utf8::encode $text;	2437	utf8::encode $text;
2102	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2103	}	2439	}
2104		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	return unless @extra \|\| length $msg;
		2456
		2457	$color &= ~cf::NDI_UNIQUE; # just in case...
		2458
		2459	if (ref $channel) {
		2460	# send meta info to client, if not yet sent
		2461	unless (exists $self->{channel}{$channel->{id}}) {
		2462	$self->{channel}{$channel->{id}} = $channel;
		2463	$self->ext_event (channel_info => %$channel);
		2464	}
		2465
		2466	$channel = $channel->{id};
		2467	}
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
2105	=item $client->ext_event ($type, %msg)	2493	=item $client->ext_event ($type, %msg)
2106		2494
2107	Sends an exti event to the client.	2495	Sends an ext event to the client.
2108		2496
2109	=cut	2497	=cut
2110		2498
2111	sub cf::client::ext_event($$%) {	2499	sub cf::client::ext_event($$%) {
2112	my ($self, $type, %msg) = @_;	2500	my ($self, $type, %msg) = @_;
2113		2501
		2502	return unless $self->extcmd;
		2503
2114	$msg{msgtype} = "event_$type";	2504	$msg{msgtype} = "event_$type";
2115	$self->send_packet ("ext " . cf::to_json \%msg);	2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2116	}	2506	}
2117		2507
2118	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
2119		2509
2120	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2122	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2123		2513
2124	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
2125	reliable at some point in the future.	2515	become reliable at some point in the future.
2126		2516
2127	=cut	2517	=cut
2128		2518
2129	sub cf::client::query {	2519	sub cf::client::query {
2130	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
2138	utf8::encode $text;	2528	utf8::encode $text;
2139	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2140		2530
2141	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
2142	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
2143	}	2535	}
2144		2536
2145	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
2146	on_reply => sub {	2543	on_reply => sub {
2147	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
2148		2545
2149	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
2150	# get handled first	2547	# get handled first
…		…
2162	} else {	2559	} else {
2163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2164	}	2561	}
2165	}	2562	}
2166	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
2167	);	2582	);
2168		2583
2169	=item $client->async (\&cb)	2584	=item $client->async (\&cb)
2170		2585
2171	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
…		…
2220		2635
2221	=pod	2636	=pod
2222		2637
2223	The following functions and methods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
2224		2639
2225	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
2226	cf::object::player player	2644	cf::object::player
2227	cf::player peaceful	2645	player
2228	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
2229		2652
2230	=cut	2653	=cut
2231		2654
2232	for (	2655	for (
2233	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
2234	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
2235	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
2236	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
2237	) {	2661	) {
2238	no strict 'refs';	2662	no strict 'refs';
…		…
2309	=back	2733	=back
2310		2734
2311	=cut	2735	=cut
2312		2736
2313	#############################################################################	2737	#############################################################################
2314
2315	=head2 EXTENSION DATABASE SUPPORT
2316
2317	Crossfire maintains a very simple database for extension use. It can
2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2319	convert to/from binary).
2320
2321	The parameter C<$family> should best start with the name of the extension
2322	using it, it should be unique.
2323
2324	=over 4
2325
2326	=item $value = cf::db_get $family => $key
2327
2328	Returns a single value from the database.
2329
2330	=item cf::db_put $family => $key => $value
2331
2332	Stores the given C<$value> in the family.
2333
2334	=cut
2335
2336	our $DB;
2337
2338	sub db_init {
2339	unless ($DB) {
2340	$DB = BDB::db_create $DB_ENV;
2341
2342	cf::sync_job {
2343	eval {
2344	$DB->set_flags (BDB::CHKSUM);
2345
2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2347	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2348	cf::cleanup "db_open(db): $!" if $!;
2349	};
2350	cf::cleanup "db_open(db): $@" if $@;
2351	};
2352	}
2353	}
2354
2355	sub db_get($$) {
2356	my $key = "$_[0]/$_[1]";
2357
2358	cf::sync_job {
2359	BDB::db_get $DB, undef, $key, my $data;
2360
2361	$! ? ()
2362	: $data
2363	}
2364	}
2365
2366	sub db_put($$$) {
2367	BDB::dbreq_pri 4;
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 $@;
2481	_exit 0;
2482	}
2483	}
2484
2485	#############################################################################
2486	# the server's init and main functions	2738	# the server's init and main functions
2487		2739
2488	sub load_facedata($) {	2740	sub load_facedata($) {
2489	my ($path) = @_;	2741	my ($path) = @_;
2490		2742
…		…
2502	{	2754	{
2503	my $faces = $facedata->{faceinfo};	2755	my $faces = $facedata->{faceinfo};
2504		2756
2505	while (my ($face, $info) = each %$faces) {	2757	while (my ($face, $info) = each %$faces) {
2506	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2758	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2510	Coro::cede;	2763
		2764	cf::cede_to_tick;
2511	}	2765	}
2512		2766
2513	while (my ($face, $info) = each %$faces) {	2767	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	2768	next unless $info->{smooth};
2515	my $idx = cf::face::find $face	2769	my $idx = cf::face::find $face
2516	or next;	2770	or next;
2517	if (my $smooth = cf::face::find $info->{smooth}) {	2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	2774	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	2776	}
2522	Coro::cede;	2777
		2778	cf::cede_to_tick;
2523	}	2779	}
2524	}	2780	}
2525		2781
2526	{	2782	{
2527	my $anims = $facedata->{animinfo};	2783	my $anims = $facedata->{animinfo};
2528		2784
2529	while (my ($anim, $info) = each %$anims) {	2785	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	2787	cf::cede_to_tick;
2532	}	2788	}
2533		2789
2534	cf::anim::invalidate_all; # d'oh	2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) \|\| cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a)", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
2535	}	2821	}
2536		2822
2537	1	2823	1
2538	}	2824	}
2539		2825
2540	sub reload_regions {	2826	sub reload_regions {
2541	load_resource_file "$MAPDIR/regions"	2827	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
2543	}	2834	}
2544		2835
2545	sub reload_facedata {	2836	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	2837	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	2838	or die "unable to load facedata\n";
2548	}	2839	}
2549		2840
2550	sub reload_archetypes {	2841	sub reload_archetypes {
		2842	load_resource_file "$DATADIR/archetypes"
		2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
2551	load_resource_file "$DATADIR/archetypes"	2847	load_resource_file "$DATADIR/archetypes"
2552	or die "unable to load archetypes\n";	2848	or die "unable to load archetypes\n";
2553	}	2849	}
2554		2850
2555	sub reload_treasures {	2851	sub reload_treasures {
…		…
2627	},	2923	},
2628	);	2924	);
2629	}	2925	}
2630	}	2926	}
2631		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
2632	sub emergency_save() {	2966	sub emergency_save() {
2633	my $freeze_guard = cf::freeze_mainloop;	2967	my $freeze_guard = cf::freeze_mainloop;
2634		2968
2635	warn "enter emergency perl save\n";	2969	warn "enter emergency perl save\n";
2636		2970
…		…
2711	%EXT_CORO = ();	3045	%EXT_CORO = ();
2712		3046
2713	warn "removing commands";	3047	warn "removing commands";
2714	%COMMAND = ();	3048	%COMMAND = ();
2715		3049
2716	warn "removing ext commands";	3050	warn "removing ext/exti commands";
2717	%EXTCMD = ();	3051	%EXTCMD = ();
		3052	%EXTICMD = ();
2718		3053
2719	warn "unloading/nuking all extensions";	3054	warn "unloading/nuking all extensions";
2720	for my $pkg (@EXTS) {	3055	for my $pkg (@EXTS) {
2721	warn "... unloading $pkg";	3056	warn "... unloading $pkg";
2722		3057

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC vs. Revision 1.312 by root, Sat Jul 21 18:01:26 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 2007 UTC