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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 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 ();
…		…
49	our %COMMAND = ();	50	our %COMMAND = ();
50	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
51		52
52	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
56		58
57	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
58	our @EVENT;	60	our @EVENT;
…		…
90	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
91		93
92	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
95	binmode STDOUT;	101	binmode STDOUT;
96	binmode STDERR;	102	binmode STDERR;
97		103
98	# read virtual server time, if available	104	# read virtual server time, if available
99	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {	105	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {
…		…
139		145
140	=item $cf::TICK	146	=item $cf::TICK
141		147
142	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
143		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
		159
144	=item %cf::CFG	160	=item %cf::CFG
145		161
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	163	from wherever your confdir points to.
148		164
…		…
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		196
180	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	198	# within the Safe compartment.
182	for my $pkg (qw(	199	for my $pkg (qw(
183	cf::global cf::attachable	200	cf::global cf::attachable
…		…
191	}	208	}
192		209
193	$Event::DIED = sub {	210	$Event::DIED = sub {
194	warn "error in event callback: @_";	211	warn "error in event callback: @_";
195	};	212	};
		213
		214	#############################################################################
196		215
197	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
198		217
199	=over 4	218	=over 4
200		219
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	239	$d
221	} \|\| "[unable to dump $_[0]: '$@']";	240	} \|\| "[unable to dump $_[0]: '$@']";
222	}	241	}
223		242
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
227		244
228	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
229		246
230	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
231		248
232	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
233		257
234	=item cf::lock_wait $string	258	=item cf::lock_wait $string
235		259
236	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
237		261
…		…
303		327
304	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
305		329
306	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
307		331
308	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
311		336
312	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
315	fast or be very important.	340	fast or be very important.
…		…
318		343
319	sub sync_job(&) {	344	sub sync_job(&) {
320	my ($job) = @_;	345	my ($job) = @_;
321		346
322	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
323	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
325		352
326	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
338		365
339	while ($busy) {	366	while ($busy) {
340	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
341	}	368	}
342		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError \| logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
343	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
344	} else {	378	} else {
345	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
346		380
347	$job->()	381	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
367		401
368	$coro	402	$coro
369	}	403	}
370		404
371	sub write_runtime {	405	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		406
374	# first touch the runtime file to show we are still running:	407	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
376		411
377	warn "touching runtime...\n";#d#	412	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
379	utime undef, undef, $fh;
380	}
381		413
382	my $guard = cf::lock_acquire "write_runtime";	414	sub fork_call(&@) {
		415	my ($cb, @args) = @_;
383		416
384	warn "starting to write runtime...\n";#d#	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
385	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	418	# or die "socketpair: $!";
386	or return;	419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
387		421
388	my $value = $cf::RUNTIME + 90 + 10;	422	if (my $pid = fork) {
389	# 10 is the runtime save interval, for a monotonic clock
390	# 60 allows for the watchdog to kill the server.
391
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
393	and return;
394
395	# always fsync - this file is important
396	aio_fsync $fh
397	and return;
398
399	# touch it again to show we are up-to-date
400	utime undef, undef, $fh;
401
402	close $fh	423	close $fh2;
403	or return;
404		424
405	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
406	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
407		428
408	warn "... done writing runtime.\n";#d#	429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
409		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
410	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
411	}	576	}
412		577
413	=item cf::datalog type => key => value, ...	578	=item cf::datalog type => key => value, ...
414		579
415	Log a datalog packet of the given type with the given key-value pairs.	580	Log a datalog packet of the given type with the given key-value pairs.
…		…
433	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
435		600
436	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
437	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	603	Crossfire TRT).
439		604
440	=over 4	605	=over 4
441		606
442	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
443		608
…		…
606	$registry = $CB_TYPE[$object_type] \|\|= [];	771	$registry = $CB_TYPE[$object_type] \|\|= [];
607		772
608	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
612		777
613	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	779	my $pkg = shift @arg;
615		780
616	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
646	}	811	}
647		812
648	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
649	} else {	814	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	816	}
652		817
653	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
654	}	819	}
655		820
…		…
657	if (ref $_[0]) {	822	if (ref $_[0]) {
658	_object_attach @_;	823	_object_attach @_;
659	} else {	824	} else {
660	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
661	}	826	}
		827	_recalc_want;
662	};	828	};
663		829
664	# all those should be optimised	830	# all those should be optimised
665	sub cf::attachable::detach {	831	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
670	reattach ($obj);	836	reattach ($obj);
671	} else {	837	} else {
672	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
673	}	839	}
		840	_recalc_want;
674	};	841	};
675		842
676	sub cf::attachable::attached {	843	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
678		845
…		…
851	or return;	1018	or return;
852	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
853	}	1020	}
854		1021
855	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
856	$filename, length $data, scalar @{$av \|\| []};#d#	1023	$filename, length $data, scalar @{$av \|\| []};
857	return ($data, $av);	1024	return ($data, $av);
858	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
859		1032
860	#############################################################################	1033	#############################################################################
861	# command handling &c	1034	# command handling &c
862		1035
863	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1050	}
878		1051
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1053
881	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
882		1059
883	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
884	called.	1061	called.
885		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
886	=cut	1074	=cut
887		1075
888	sub register_extcmd {	1076	sub register_extcmd {
889	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
890		1078
891	$EXTCMD{$name} = $cb;	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
892	}	1086	}
893		1087
894	cf::player->attach (	1088	cf::player->attach (
895	on_command => sub {	1089	on_command => sub {
896	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
905	cf::override;	1099	cf::override;
906	},	1100	},
907	on_extcmd => sub {	1101	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
909		1103
910	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1105
912	if (ref $msg) {	1106	if (ref $msg) {
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
914	if (my %reply = $cb->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
915	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
921		1115
922	cf::override;	1116	cf::override;
923	},	1117	},
924	);	1118	);
925		1119
926	sub load_extension {
927	my ($path) = @_;
928
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
930	my $base = $1;
931	my $pkg = $1;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}
954	die $@;
955	}
956
957	push @EXTS, $pkg;
958	}
959
960	sub load_extensions {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
961	for my $ext (<$LIBDIR/*.ext>) {	1124	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1125	next unless -r $path;
963	eval {	1126
964	load_extension $ext;	1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
965	1	1184	}
966	} or warn "$ext not loaded: $@";	1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
967	}	1190	};
968	}	1191	}
969		1192
970	#############################################################################	1193	#############################################################################
		1194
		1195	=back
971		1196
972	=head2 CORE EXTENSIONS	1197	=head2 CORE EXTENSIONS
973		1198
974	Functions and methods that extend core crossfire objects.	1199	Functions and methods that extend core crossfire objects.
975		1200
…		…
1163	}	1388	}
1164		1389
1165	\@paths	1390	\@paths
1166	}	1391	}
1167		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&/g;
		1404	s/(?<![BIUGH])</</g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male\|female> tags
		1414	\|\| s{G<([^>\|])\\|([^>])>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	\|\| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
1168	=item $player->ext_reply ($msgid, %msg)	1443	=item $player->ext_reply ($msgid, %msg)
1169		1444
1170	Sends an ext reply to the player.	1445	Sends an ext reply to the player.
1171		1446
1172	=cut	1447	=cut
1173		1448
1174	sub ext_reply($$%) {	1449	sub ext_reply($$%) {
1175	my ($self, $id, %msg) = @_;	1450	my ($self, $id, %msg) = @_;
1176		1451
1177	$msg{msgid} = $id;	1452	$msg{msgid} = $id;
1178		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1454	}
1181		1455
1182	=item $player->ext_event ($type, %msg)	1456	=item $player->ext_event ($type, %msg)
1183		1457
1184	Sends an ext event to the client.	1458	Sends an ext event to the client.
…		…
1199		1473
1200	package cf::region;	1474	package cf::region;
1201		1475
1202	=item cf::region::find_by_path $path	1476	=item cf::region::find_by_path $path
1203		1477
1204	Tries to decuce the probable region for a map knowing only its path.	1478	Tries to decuce the likely region for a map knowing only its path.
1205		1479
1206	=cut	1480	=cut
1207		1481
1208	sub find_by_path($) {	1482	sub find_by_path($) {
1209	my ($path) = @_;	1483	my ($path) = @_;
…		…
1283	my ($self, $merge) = @_;	1557	my ($self, $merge) = @_;
1284		1558
1285	# we have to keep some variables in memory intact	1559	# we have to keep some variables in memory intact
1286	local $self->{path};	1560	local $self->{path};
1287	local $self->{load_path};	1561	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1562
1291	$self->SUPER::thawer_merge ($merge);	1563	$self->SUPER::thawer_merge ($merge);
1292	}	1564	}
1293		1565
1294	sub normalise {	1566	sub normalise {
…		…
1394		1666
1395	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1397	}	1669	}
1398		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
1399	sub unlink_save {	1679	sub unlink_save {
1400	my ($self) = @_;	1680	my ($self) = @_;
1401		1681
1402	utf8::encode (my $save = $self->save_path);	1682	utf8::encode (my $save = $self->save_path);
1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1459	$self->load_header_orig	1739	$self->load_header_orig
1460	or return;	1740	or return;
1461	$self->prepare_orig;	1741	$self->prepare_orig;
1462	}	1742	}
1463		1743
		1744	$self->{deny_reset} = 1
		1745	if $self->no_reset;
		1746
1464	$self->default_region (cf::region::find_by_path $self->{path})	1747	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1748	unless $self->default_region;
1466		1749
1467	1	1750	1
1468	}	1751	}
…		…
1483	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1484		1767
1485	$map->load_header	1768	$map->load_header
1486	or return;	1769	or return;
1487		1770
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1772	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1773	#$cf::WAIT_FOR_TICK->wait;
1491	$map->reset;	1774	$map->reset;
1492	undef $guard;	1775	undef $guard;
1493	return find $path;	1776	return find $path;
…		…
1560	my ($self, $ob) = @_;	1843	my ($self, $ob) = @_;
1561		1844
1562	return find "~" . $ob->name . "/" . $self->{path}	1845	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	1846	if $self->per_player;
1564		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
1565	$self	1851	$self
1566	}	1852	}
1567		1853
1568	# find and load all maps in the 3x3 area around a map	1854	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	1855	sub load_diag {
…		…
1679		1965
1680	sub reset_at {	1966	sub reset_at {
1681	my ($self) = @_;	1967	my ($self) = @_;
1682		1968
1683	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1686		1971
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1689		1974
…		…
1700	my ($self) = @_;	1985	my ($self) = @_;
1701		1986
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		1988
1704	return if $self->players;	1989	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		1990
1707	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
1708		1992
1709	$self->in_memory (cf::MAP_SWAPPED);	1993	$self->in_memory (cf::MAP_SWAPPED);
1710		1994
1711	# need to save uniques path	1995	# need to save uniques path
1712	unless ($self->{deny_save}) {	1996	unless ($self->{deny_save}) {
…		…
1744	$cf::MAP{$self->path} = $self;	2028	$cf::MAP{$self->path} = $self;
1745		2029
1746	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1747	}	2031	}
1748		2032
		2033	=item $maps = cf::map::tmp_maps
		2034
		2035	Returns an arrayref with all map paths of currently instantiated and saved
		2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
		2041	[
		2042	map {
		2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
		2049	}
		2050
		2051	=item $maps = cf::map::random_maps
		2052
		2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
		2055
		2056	=cut
		2057
		2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
1749	=item cf::map::unique_maps	2069	=item cf::map::unique_maps
1750		2070
1751	Returns an arrayref of paths of all shared maps that have	2071	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2072	instantiated unique items. May block.
1753		2073
1754	=cut	2074	=cut
1755		2075
1756	sub unique_maps() {	2076	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2077	[
1758	or return;	2078	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2079	utf8::decode $_;
1764	next if /\.pst$/;	2080	/\.map$/
1765	next unless /^$PATH_SEP/o;	2081	? normalise $_
1766		2082	: ()
1767	push @paths, cf::map::normalise $_;	2083	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2084	]
1769
1770	\@paths
1771	}	2085	}
1772		2086
1773	package cf;	2087	package cf;
1774		2088
1775	=back	2089	=back
…		…
1821		2135
1822	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1823		2137
1824	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1826	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1829	}	2157	}
1830	}	2158	}
1831		2159
1832	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1833		2161
…		…
1881	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1882		2210
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2212
1885	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1887		2215
1888	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2216	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1889	}	2217	}
1890		2218
1891	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1893		2223
1894	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1895		2225
1896	unless ($map) {	2226	unless ($map) {
1897	# restore original map position	2227	# restore original map position
…		…
1920		2250
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1923	}	2253	}
1924		2254
1925	cf::player->attach (
1926	on_logout => sub {
1927	my ($pl) = @_;
1928
1929	# abort map switching before logout
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938
1939	# try to abort aborted map switching on player login :)
1940	# should happen only on crashes
1941	if ($pl->ob->{_link_pos}) {
1942	$pl->ob->enter_link;
1943	(async {
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956
1957	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1958		2256
		2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
		2261
1959	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1960		2265
1961	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2271
1964	$self->enter_link;	2272	$self->enter_link;
1965		2273
1966	(async {	2274	(async {
1967	my $map = eval {	2275	my $map = eval {
1968	my $map = cf::map::find $path;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
		2280	$map = $check->($map) if $check && $map;
		2281	} else {
		2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2283	}
		2284
1970	$map	2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2290	LOG llevError \| logBacktrace, Carp::longmess $@;
1971	} or	2291	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1973		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1975	})->prio (1);	2297	})->prio (1);
1976	}	2298	}
1977		2299
1978	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1979		2301
…		…
2048	my $hp = $exit->stats->hp;	2370	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2371	my $sp = $exit->stats->sp;
2050		2372
2051	$self->enter_link;	2373	$self->enter_link;
2052		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
		2378
2053	(async {	2379	(async {
2054	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2381	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2382	$self->goto ($slaying, $hp, $sp);
2057		2383
…		…
2084		2410
2085	utf8::encode $text;	2411	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2087	}	2413	}
2088		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra \|\| length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
2089	=item $client->ext_event ($type, %msg)	2455	=item $client->ext_event ($type, %msg)
2090		2456
2091	Sends an exti event to the client.	2457	Sends an ext event to the client.
2092		2458
2093	=cut	2459	=cut
2094		2460
2095	sub cf::client::ext_event($$%) {	2461	sub cf::client::ext_event($$%) {
2096	my ($self, $type, %msg) = @_;	2462	my ($self, $type, %msg) = @_;
2097		2463
2098	$msg{msgtype} = "event_$type";	2464	$msg{msgtype} = "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2100	}	2466	}
2101		2467
2102	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
2103		2469
2104	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2473
2108	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2475	become reliable at some point in the future.
2110		2476
2111	=cut	2477	=cut
2112		2478
2113	sub cf::client::query {	2479	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2488	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2490
2125	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
2127	}	2495	}
2128		2496
2129	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
2130	on_reply => sub {	2503	on_reply => sub {
2131	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
2132		2505
2133	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
2134	# get handled first	2507	# get handled first
…		…
2146	} else {	2519	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2521	}
2149	}	2522	}
2150	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
2151	);	2542	);
2152		2543
2153	=item $client->async (\&cb)	2544	=item $client->async (\&cb)
2154		2545
2155	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
…		…
2204		2595
2205	=pod	2596	=pod
2206		2597
2207	The following functions and methods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
2208		2599
2209	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
2210	cf::object::player player	2604	cf::object::player
2211	cf::player peaceful	2605	player
2212	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
2213		2612
2214	=cut	2613	=cut
2215		2614
2216	for (	2615	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
2218	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
2221	) {	2621	) {
2222	no strict 'refs';	2622	no strict 'refs';
…		…
2291	}	2691	}
2292		2692
2293	=back	2693	=back
2294		2694
2295	=cut	2695	=cut
2296
2297	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470		2696
2471	#############################################################################	2697	#############################################################################
2472	# the server's init and main functions	2698	# the server's init and main functions
2473		2699
2474	sub load_facedata($) {	2700	sub load_facedata($) {
…		…
2534	}	2760	}
2535		2761
2536	sub reload_archetypes {	2762	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	2763	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
2539	}	2770	}
2540		2771
2541	sub reload_treasures {	2772	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	2773	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	2774	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	2777	sub reload_resources {
2547	warn "reloading resource files...\n";	2778	warn "reloading resource files...\n";
2548		2779
2549	reload_regions;	2780	reload_regions;
2550	reload_facedata;	2781	reload_facedata;
		2782	#reload_archetypes;#d#
2551	reload_archetypes;	2783	reload_archetypes;
2552	reload_treasures;	2784	reload_treasures;
2553		2785
2554	warn "finished reloading resource files\n";	2786	warn "finished reloading resource files\n";
2555	}	2787	}
…		…
2612	},	2844	},
2613	);	2845	);
2614	}	2846	}
2615	}	2847	}
2616		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
2617	sub emergency_save() {	2887	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	2888	my $freeze_guard = cf::freeze_mainloop;
2619		2889
2620	warn "enter emergency perl save\n";	2890	warn "enter emergency perl save\n";
2621		2891
…		…
2696	%EXT_CORO = ();	2966	%EXT_CORO = ();
2697		2967
2698	warn "removing commands";	2968	warn "removing commands";
2699	%COMMAND = ();	2969	%COMMAND = ();
2700		2970
2701	warn "removing ext commands";	2971	warn "removing ext/exti commands";
2702	%EXTCMD = ();	2972	%EXTCMD = ();
		2973	%EXTICMD = ();
2703		2974
2704	warn "unloading/nuking all extensions";	2975	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	2976	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	2977	warn "... unloading $pkg";
2707		2978
…		…
2825	my $signal = new Coro::Signal;	3096	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3097	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3098	$signal->wait;
2828	}	3099	}
2829		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2830	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2831	reentrant => 0,	3104	reentrant => 0,
2832	parked => 1,	3105	parked => 1,
2833	prio => 0,	3106	prio => 0,
2834	at => $NEXT_TICK \|\| $TICK,	3107	at => $NEXT_TICK \|\| $TICK,
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3112	unless ++$bug_warning > 10;
2840	return;	3113	return;
2841	}	3114	}
2842		3115
2843	$NOW = Event::time;	3116	$NOW = $tick_start = Event::time;
2844		3117
2845	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
2846		3142
2847	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2849		3145
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2856	}	3152	}
2857		3153
2858	# my $AFTER = Event::time;	3154	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#	3155	# warn $AFTER - $NOW;#d#
2860		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2861	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3168
2864	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
2866		3171
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3172	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3174
2874	_post_tick;	3175	_post_tick;
		3176
		3177
2875	},	3178	},
2876	);	3179	);
2877		3180
2878	{	3181	{
2879	BDB::max_poll_time $TICK * 0.1;	3182	BDB::max_poll_time $TICK * 0.1;

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs. Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC