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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 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 $guard = cf::lock_acquire "write_runtime";
373		406
374	my $runtime = "$LOCALDIR/runtime";	407	Executes the given code block with the given arguments in a seperate
		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.
375		411
376	warn "starting to write runtime...\n";#d#	412	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
378	or return;
379		413
380	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		416
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
385	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
386		421
387	# always fsync - this file is important	422	if (my $pid = fork) {
388	aio_fsync $fh
389	and return;
390
391	close $fh	423	close $fh2;
392	or return;
393		424
394	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
395	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
396		428
397	warn "... done writing runtime.\n";#d#	429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
398		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
399	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		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"
400	}	576	}
401		577
402	=item cf::datalog type => key => value, ...	578	=item cf::datalog type => key => value, ...
403		579
404	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.
…		…
422	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")
423	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
424		600
425	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>
426	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
427	crossfire+).	603	Crossfire TRT).
428		604
429	=over 4	605	=over 4
430		606
431	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
432		608
…		…
595	$registry = $CB_TYPE[$object_type] \|\|= [];	771	$registry = $CB_TYPE[$object_type] \|\|= [];
596		772
597	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
601		777
602	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	779	my $pkg = shift @arg;
604		780
605	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
635	}	811	}
636		812
637	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
638	} else {	814	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	816	}
641		817
642	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
643	}	819	}
644		820
…		…
646	if (ref $_[0]) {	822	if (ref $_[0]) {
647	_object_attach @_;	823	_object_attach @_;
648	} else {	824	} else {
649	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
650	}	826	}
		827	_recalc_want;
651	};	828	};
652		829
653	# all those should be optimised	830	# all those should be optimised
654	sub cf::attachable::detach {	831	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
659	reattach ($obj);	836	reattach ($obj);
660	} else {	837	} else {
661	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
662	}	839	}
		840	_recalc_want;
663	};	841	};
664		842
665	sub cf::attachable::attached {	843	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
667		845
…		…
840	or return;	1018	or return;
841	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
842	}	1020	}
843		1021
844	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
845	$filename, length $data, scalar @{$av \|\| []};#d#	1023	$filename, length $data, scalar @{$av \|\| []};
846	return ($data, $av);	1024	return ($data, $av);
847	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
848		1032
849	#############################################################################	1033	#############################################################################
850	# command handling &c	1034	# command handling &c
851		1035
852	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1050	}
867		1051
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1053
870	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.
871		1059
872	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
873	called.	1061	called.
874		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
875	=cut	1074	=cut
876		1075
877	sub register_extcmd {	1076	sub register_extcmd {
878	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
879		1078
880	$EXTCMD{$name} = $cb;	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
881	}	1086	}
882		1087
883	cf::player->attach (	1088	cf::player->attach (
884	on_command => sub {	1089	on_command => sub {
885	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
894	cf::override;	1099	cf::override;
895	},	1100	},
896	on_extcmd => sub {	1101	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
898		1103
899	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1105
901	if (ref $msg) {	1106	if (ref $msg) {
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
903	if (my %reply = $cb->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
904	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
910		1115
911	cf::override;	1116	cf::override;
912	},	1117	},
913	);	1118	);
914		1119
915	sub load_extension {
916	my ($path) = @_;
917
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
919	my $base = $1;
920	my $pkg = $1;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}
943	die $@;
944	}
945
946	push @EXTS, $pkg;
947	}
948
949	sub load_extensions {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
950	for my $ext (<$LIBDIR/*.ext>) {	1124	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1125	next unless -r $path;
952	eval {	1126
953	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;
954	1	1184	}
955	} or warn "$ext not loaded: $@";	1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
956	}	1190	};
957	}	1191	}
958		1192
959	#############################################################################	1193	#############################################################################
		1194
		1195	=back
960		1196
961	=head2 CORE EXTENSIONS	1197	=head2 CORE EXTENSIONS
962		1198
963	Functions and methods that extend core crossfire objects.	1199	Functions and methods that extend core crossfire objects.
964		1200
…		…
1152	}	1388	}
1153		1389
1154	\@paths	1390	\@paths
1155	}	1391	}
1156		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
1157	=item $player->ext_reply ($msgid, %msg)	1443	=item $player->ext_reply ($msgid, %msg)
1158		1444
1159	Sends an ext reply to the player.	1445	Sends an ext reply to the player.
1160		1446
1161	=cut	1447	=cut
1162		1448
1163	sub ext_reply($$%) {	1449	sub ext_reply($$%) {
1164	my ($self, $id, %msg) = @_;	1450	my ($self, $id, %msg) = @_;
1165		1451
1166	$msg{msgid} = $id;	1452	$msg{msgid} = $id;
1167		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1454	}
1170		1455
1171	=item $player->ext_event ($type, %msg)	1456	=item $player->ext_event ($type, %msg)
1172		1457
1173	Sends an ext event to the client.	1458	Sends an ext event to the client.
…		…
1188		1473
1189	package cf::region;	1474	package cf::region;
1190		1475
1191	=item cf::region::find_by_path $path	1476	=item cf::region::find_by_path $path
1192		1477
1193	Tries to decuce the probable region for a map knowing only its path.	1478	Tries to decuce the likely region for a map knowing only its path.
1194		1479
1195	=cut	1480	=cut
1196		1481
1197	sub find_by_path($) {	1482	sub find_by_path($) {
1198	my ($path) = @_;	1483	my ($path) = @_;
…		…
1272	my ($self, $merge) = @_;	1557	my ($self, $merge) = @_;
1273		1558
1274	# we have to keep some variables in memory intact	1559	# we have to keep some variables in memory intact
1275	local $self->{path};	1560	local $self->{path};
1276	local $self->{load_path};	1561	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1562
1280	$self->SUPER::thawer_merge ($merge);	1563	$self->SUPER::thawer_merge ($merge);
1281	}	1564	}
1282		1565
1283	sub normalise {	1566	sub normalise {
…		…
1383		1666
1384	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1385	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1386	}	1669	}
1387		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
1388	sub unlink_save {	1679	sub unlink_save {
1389	my ($self) = @_;	1680	my ($self) = @_;
1390		1681
1391	utf8::encode (my $save = $self->save_path);	1682	utf8::encode (my $save = $self->save_path);
1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1448	$self->load_header_orig	1739	$self->load_header_orig
1449	or return;	1740	or return;
1450	$self->prepare_orig;	1741	$self->prepare_orig;
1451	}	1742	}
1452		1743
		1744	$self->{deny_reset} = 1
		1745	if $self->no_reset;
		1746
1453	$self->default_region (cf::region::find_by_path $self->{path})	1747	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1748	unless $self->default_region;
1455		1749
1456	1	1750	1
1457	}	1751	}
…		…
1472	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1473		1767
1474	$map->load_header	1768	$map->load_header
1475	or return;	1769	or return;
1476		1770
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	1772	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	1773	#$cf::WAIT_FOR_TICK->wait;
1480	$map->reset;	1774	$map->reset;
1481	undef $guard;	1775	undef $guard;
1482	return find $path;	1776	return find $path;
…		…
1549	my ($self, $ob) = @_;	1843	my ($self, $ob) = @_;
1550		1844
1551	return find "~" . $ob->name . "/" . $self->{path}	1845	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	1846	if $self->per_player;
1553		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
1554	$self	1851	$self
1555	}	1852	}
1556		1853
1557	# find and load all maps in the 3x3 area around a map	1854	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	1855	sub load_diag {
…		…
1668		1965
1669	sub reset_at {	1966	sub reset_at {
1670	my ($self) = @_;	1967	my ($self) = @_;
1671		1968
1672	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1675		1971
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1678		1974
…		…
1689	my ($self) = @_;	1985	my ($self) = @_;
1690		1986
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		1988
1693	return if $self->players;	1989	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		1990
1696	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
1697		1992
1698	$self->in_memory (cf::MAP_SWAPPED);	1993	$self->in_memory (cf::MAP_SWAPPED);
1699		1994
1700	# need to save uniques path	1995	# need to save uniques path
1701	unless ($self->{deny_save}) {	1996	unless ($self->{deny_save}) {
…		…
1733	$cf::MAP{$self->path} = $self;	2028	$cf::MAP{$self->path} = $self;
1734		2029
1735	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1736	}	2031	}
1737		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
1738	=item cf::map::unique_maps	2069	=item cf::map::unique_maps
1739		2070
1740	Returns an arrayref of paths of all shared maps that have	2071	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2072	instantiated unique items. May block.
1742		2073
1743	=cut	2074	=cut
1744		2075
1745	sub unique_maps() {	2076	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2077	[
1747	or return;	2078	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2079	utf8::decode $_;
1753	next if /\.pst$/;	2080	/\.map$/
1754	next unless /^$PATH_SEP/o;	2081	? normalise $_
1755		2082	: ()
1756	push @paths, cf::map::normalise $_;	2083	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2084	]
1758
1759	\@paths
1760	}	2085	}
1761		2086
1762	package cf;	2087	package cf;
1763		2088
1764	=back	2089	=back
…		…
1810		2135
1811	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1812		2137
1813	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1815	} 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 {
1816	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1818	}	2157	}
1819	}	2158	}
1820		2159
1821	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1822		2161
…		…
1870	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1871		2210
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2212
1874	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1876		2215
1877	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2216	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1878	}	2217	}
1879		2218
1880	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1882		2223
1883	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1884		2225
1885	unless ($map) {	2226	unless ($map) {
1886	# restore original map position	2227	# restore original map position
…		…
1909		2250
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1912	}	2253	}
1913		2254
1914	cf::player->attach (
1915	on_logout => sub {
1916	my ($pl) = @_;
1917
1918	# abort map switching before logout
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927
1928	# try to abort aborted map switching on player login :)
1929	# should happen only on crashes
1930	if ($pl->ob->{_link_pos}) {
1931	$pl->ob->enter_link;
1932	(async {
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945
1946	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1947		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
1948	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1949		2265
1950	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1951	my ($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;
1952		2271
1953	$self->enter_link;	2272	$self->enter_link;
1954		2273
1955	(async {	2274	(async {
1956	my $map = eval {	2275	my $map = eval {
1957	my $map = cf::map::find $path;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1958	$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
1959	$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 $@;
1960	} or	2291	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1962		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1964	})->prio (1);	2297	})->prio (1);
1965	}	2298	}
1966		2299
1967	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1968		2301
…		…
2037	my $hp = $exit->stats->hp;	2370	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;	2371	my $sp = $exit->stats->sp;
2039		2372
2040	$self->enter_link;	2373	$self->enter_link;
2041		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
2042	(async {	2379	(async {
2043	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
2044	unless (eval {	2381	unless (eval {
2045	$self->goto ($slaying, $hp, $sp);	2382	$self->goto ($slaying, $hp, $sp);
2046		2383
…		…
2073		2410
2074	utf8::encode $text;	2411	utf8::encode $text;
2075	$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);
2076	}	2413	}
2077		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
2078	=item $client->ext_event ($type, %msg)	2455	=item $client->ext_event ($type, %msg)
2079		2456
2080	Sends an exti event to the client.	2457	Sends an ext event to the client.
2081		2458
2082	=cut	2459	=cut
2083		2460
2084	sub cf::client::ext_event($$%) {	2461	sub cf::client::ext_event($$%) {
2085	my ($self, $type, %msg) = @_;	2462	my ($self, $type, %msg) = @_;
2086		2463
2087	$msg{msgtype} = "event_$type";	2464	$msg{msgtype} = "event_$type";
2088	$self->send_packet ("ext " . cf::to_json \%msg);	2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2089	}	2466	}
2090		2467
2091	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
2092		2469
2093	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
2094	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>,
2095	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>.
2096		2473
2097	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
2098	reliable at some point in the future.	2475	become reliable at some point in the future.
2099		2476
2100	=cut	2477	=cut
2101		2478
2102	sub cf::client::query {	2479	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2488	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2490
2114	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
2116	}	2495	}
2117		2496
2118	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
2119	on_reply => sub {	2503	on_reply => sub {
2120	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
2121		2505
2122	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
2123	# get handled first	2507	# get handled first
…		…
2135	} else {	2519	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	2521	}
2138	}	2522	}
2139	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($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	},
2140	);	2542	);
2141		2543
2142	=item $client->async (\&cb)	2544	=item $client->async (\&cb)
2143		2545
2144	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
…		…
2193		2595
2194	=pod	2596	=pod
2195		2597
2196	The following functions and methods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
2197		2599
2198	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
2199	cf::object::player player	2604	cf::object::player
2200	cf::player peaceful	2605	player
2201	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
2202		2612
2203	=cut	2613	=cut
2204		2614
2205	for (	2615	for (
2206	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
2207	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
2209	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
2210	) {	2621	) {
2211	no strict 'refs';	2622	no strict 'refs';
…		…
2280	}	2691	}
2281		2692
2282	=back	2693	=back
2283		2694
2284	=cut	2695	=cut
2285
2286	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459		2696
2460	#############################################################################	2697	#############################################################################
2461	# the server's init and main functions	2698	# the server's init and main functions
2462		2699
2463	sub load_facedata($) {	2700	sub load_facedata($) {
…		…
2523	}	2760	}
2524		2761
2525	sub reload_archetypes {	2762	sub reload_archetypes {
2526	load_resource_file "$DATADIR/archetypes"	2763	load_resource_file "$DATADIR/archetypes"
2527	or die "unable to load archetypes\n";	2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
2528	}	2770	}
2529		2771
2530	sub reload_treasures {	2772	sub reload_treasures {
2531	load_resource_file "$DATADIR/treasures"	2773	load_resource_file "$DATADIR/treasures"
2532	or die "unable to load treasurelists\n";	2774	or die "unable to load treasurelists\n";
…		…
2535	sub reload_resources {	2777	sub reload_resources {
2536	warn "reloading resource files...\n";	2778	warn "reloading resource files...\n";
2537		2779
2538	reload_regions;	2780	reload_regions;
2539	reload_facedata;	2781	reload_facedata;
		2782	#reload_archetypes;#d#
2540	reload_archetypes;	2783	reload_archetypes;
2541	reload_treasures;	2784	reload_treasures;
2542		2785
2543	warn "finished reloading resource files\n";	2786	warn "finished reloading resource files\n";
2544	}	2787	}
…		…
2601	},	2844	},
2602	);	2845	);
2603	}	2846	}
2604	}	2847	}
2605		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
2606	sub emergency_save() {	2887	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	2888	my $freeze_guard = cf::freeze_mainloop;
2608		2889
2609	warn "enter emergency perl save\n";	2890	warn "enter emergency perl save\n";
2610		2891
…		…
2685	%EXT_CORO = ();	2966	%EXT_CORO = ();
2686		2967
2687	warn "removing commands";	2968	warn "removing commands";
2688	%COMMAND = ();	2969	%COMMAND = ();
2689		2970
2690	warn "removing ext commands";	2971	warn "removing ext/exti commands";
2691	%EXTCMD = ();	2972	%EXTCMD = ();
		2973	%EXTICMD = ();
2692		2974
2693	warn "unloading/nuking all extensions";	2975	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {	2976	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";	2977	warn "... unloading $pkg";
2696		2978
…		…
2814	my $signal = new Coro::Signal;	3096	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3097	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3098	$signal->wait;
2817	}	3099	}
2818		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2819	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2820	reentrant => 0,	3104	reentrant => 0,
2821	parked => 1,	3105	parked => 1,
2822	prio => 0,	3106	prio => 0,
2823	at => $NEXT_TICK \|\| $TICK,	3107	at => $NEXT_TICK \|\| $TICK,
…		…
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3112	unless ++$bug_warning > 10;
2829	return;	3113	return;
2830	}	3114	}
2831		3115
2832	$NOW = Event::time;	3116	$NOW = $tick_start = Event::time;
2833		3117
2834	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	};
2835		3142
2836	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2838		3145
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2845	}	3152	}
2846		3153
2847	# my $AFTER = Event::time;	3154	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#	3155	# warn $AFTER - $NOW;#d#
2849		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
2850	# 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
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2852		3168
2853	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
2855		3171
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3172	$LOAD = ($NOW - $tick_start) / $TICK;
2857	$sig->send;	3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2858	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;
2861	}
2862		3174
2863	_post_tick;	3175	_post_tick;
		3176
		3177
2864	},	3178	},
2865	);	3179	);
2866		3180
2867	{	3181	{
2868	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 1.263 by root, Sat May 5 05:40:27 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 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC