[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 1.299 by root, Sun Jul 8 14:56:05 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 _store_scalar {
381	# 10 is the runtime save interval, for a monotonic clock	415	open my $fh, ">", \my $buf
382	# 60 allows for the watchdog to kill the server.	416	or die "fork_call: cannot open fh-to-buf in child : $!";
383		417	Storable::store_fd $_[0], $fh;
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0
385	and return;
386
387	# always fsync - this file is important
388	aio_fsync $fh
389	and return;
390
391	close $fh	418	close $fh;
392	or return;
393		419
394	aio_rename "$runtime~", $runtime	420	$buf
395	and return;	421	}
396		422
397	warn "... done writing runtime.\n";#d#	423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
398		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
399	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
400	}	581	}
401		582
402	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
403		584
404	Log a datalog packet of the given type with the given key-value pairs.	585	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")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
423	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
424		605
425	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
427	crossfire+).	608	Crossfire TRT).
428		609
429	=over 4	610	=over 4
430		611
431	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
432		613
…		…
595	$registry = $CB_TYPE[$object_type] \|\|= [];	776	$registry = $CB_TYPE[$object_type] \|\|= [];
596		777
597	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
601		782
602	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	784	my $pkg = shift @arg;
604		785
605	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
635	}	816	}
636		817
637	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
638	} else {	819	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	821	}
641		822
642	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
643	}	824	}
644		825
…		…
646	if (ref $_[0]) {	827	if (ref $_[0]) {
647	_object_attach @_;	828	_object_attach @_;
648	} else {	829	} else {
649	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
650	}	831	}
		832	_recalc_want;
651	};	833	};
652		834
653	# all those should be optimised	835	# all those should be optimised
654	sub cf::attachable::detach {	836	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
659	reattach ($obj);	841	reattach ($obj);
660	} else {	842	} else {
661	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
662	}	844	}
		845	_recalc_want;
663	};	846	};
664		847
665	sub cf::attachable::attached {	848	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
667		850
…		…
840	or return;	1023	or return;
841	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
842	}	1025	}
843		1026
844	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
845	$filename, length $data, scalar @{$av \|\| []};#d#	1028	$filename, length $data, scalar @{$av \|\| []};
846	return ($data, $av);	1029	return ($data, $av);
847	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
848		1037
849	#############################################################################	1038	#############################################################################
850	# command handling &c	1039	# command handling &c
851		1040
852	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1055	}
867		1056
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1058
870	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
871		1064
872	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
873	called.	1066	called.
874		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
875	=cut	1079	=cut
876		1080
877	sub register_extcmd {	1081	sub register_extcmd {
878	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
879		1083
880	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
881	}	1091	}
882		1092
883	cf::player->attach (	1093	cf::player->attach (
884	on_command => sub {	1094	on_command => sub {
885	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
894	cf::override;	1104	cf::override;
895	},	1105	},
896	on_extcmd => sub {	1106	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
898		1108
899	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1110
901	if (ref $msg) {	1111	if (ref $msg) {
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
903	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
904	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
910		1120
911	cf::override;	1121	cf::override;
912	},	1122	},
913	);	1123	);
914		1124
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 {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
950	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1130	next unless -r $path;
952	eval {	1131
953	load_extension $ext;	1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
954	1	1189	}
955	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
956	}	1195	};
957	}	1196	}
958		1197
959	#############################################################################	1198	#############################################################################
		1199
		1200	=back
960		1201
961	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
962		1203
963	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
964		1205
…		…
1152	}	1393	}
1153		1394
1154	\@paths	1395	\@paths
1155	}	1396	}
1156		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&/g;
		1409	s/(?<![BIUGH])</</g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male\|female> tags
		1419	\|\| s{G<([^>\|])\\|([^>])>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	\|\| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
1157	=item $player->ext_reply ($msgid, %msg)	1448	=item $player->ext_reply ($msgid, %msg)
1158		1449
1159	Sends an ext reply to the player.	1450	Sends an ext reply to the player.
1160		1451
1161	=cut	1452	=cut
1162		1453
1163	sub ext_reply($$%) {	1454	sub ext_reply($$%) {
1164	my ($self, $id, %msg) = @_;	1455	my ($self, $id, %msg) = @_;
1165		1456
1166	$msg{msgid} = $id;	1457	$msg{msgid} = $id;
1167		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1459	}
1170		1460
1171	=item $player->ext_event ($type, %msg)	1461	=item $player->ext_event ($type, %msg)
1172		1462
1173	Sends an ext event to the client.	1463	Sends an ext event to the client.
…		…
1188		1478
1189	package cf::region;	1479	package cf::region;
1190		1480
1191	=item cf::region::find_by_path $path	1481	=item cf::region::find_by_path $path
1192		1482
1193	Tries to decuce the probable region for a map knowing only its path.	1483	Tries to decuce the likely region for a map knowing only its path.
1194		1484
1195	=cut	1485	=cut
1196		1486
1197	sub find_by_path($) {	1487	sub find_by_path($) {
1198	my ($path) = @_;	1488	my ($path) = @_;
…		…
1272	my ($self, $merge) = @_;	1562	my ($self, $merge) = @_;
1273		1563
1274	# we have to keep some variables in memory intact	1564	# we have to keep some variables in memory intact
1275	local $self->{path};	1565	local $self->{path};
1276	local $self->{load_path};	1566	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1567
1280	$self->SUPER::thawer_merge ($merge);	1568	$self->SUPER::thawer_merge ($merge);
1281	}	1569	}
1282		1570
1283	sub normalise {	1571	sub normalise {
…		…
1383		1671
1384	$_->change_map_light ($change)	1672	$_->change_map_light ($change)
1385	for grep $_->outdoor, values %cf::MAP;	1673	for grep $_->outdoor, values %cf::MAP;
1386	}	1674	}
1387		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
		1682	}
		1683
1388	sub unlink_save {	1684	sub unlink_save {
1389	my ($self) = @_;	1685	my ($self) = @_;
1390		1686
1391	utf8::encode (my $save = $self->save_path);	1687	utf8::encode (my $save = $self->save_path);
1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1688	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1448	$self->load_header_orig	1744	$self->load_header_orig
1449	or return;	1745	or return;
1450	$self->prepare_orig;	1746	$self->prepare_orig;
1451	}	1747	}
1452		1748
		1749	$self->{deny_reset} = 1
		1750	if $self->no_reset;
		1751
1453	$self->default_region (cf::region::find_by_path $self->{path})	1752	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1753	unless $self->default_region;
1455		1754
1456	1	1755	1
1457	}	1756	}
…		…
1472	$map->{last_save} = $cf::RUNTIME;	1771	$map->{last_save} = $cf::RUNTIME;
1473		1772
1474	$map->load_header	1773	$map->load_header
1475	or return;	1774	or return;
1476		1775
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	1777	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	1778	#$cf::WAIT_FOR_TICK->wait;
1480	$map->reset;	1779	$map->reset;
1481	undef $guard;	1780	undef $guard;
1482	return find $path;	1781	return find $path;
…		…
1549	my ($self, $ob) = @_;	1848	my ($self, $ob) = @_;
1550		1849
1551	return find "~" . $ob->name . "/" . $self->{path}	1850	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	1851	if $self->per_player;
1553		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
		1855
1554	$self	1856	$self
1555	}	1857	}
1556		1858
1557	# find and load all maps in the 3x3 area around a map	1859	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	1860	sub load_diag {
…		…
1668		1970
1669	sub reset_at {	1971	sub reset_at {
1670	my ($self) = @_;	1972	my ($self) = @_;
1671		1973
1672	# TODO: safety, remove and allow resettable per-player maps	1974	# 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};	1975	return 1e99 if $self->{deny_reset};
1675		1976
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1678		1979
…		…
1689	my ($self) = @_;	1990	my ($self) = @_;
1690		1991
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		1993
1693	return if $self->players;	1994	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		1995
1696	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
1697		1997
1698	$self->in_memory (cf::MAP_SWAPPED);	1998	$self->in_memory (cf::MAP_SWAPPED);
1699		1999
1700	# need to save uniques path	2000	# need to save uniques path
1701	unless ($self->{deny_save}) {	2001	unless ($self->{deny_save}) {
…		…
1733	$cf::MAP{$self->path} = $self;	2033	$cf::MAP{$self->path} = $self;
1734		2034
1735	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1736	}	2036	}
1737		2037
		2038	=item $maps = cf::map::tmp_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item $maps = cf::map::random_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
		2060
		2061	=cut
		2062
		2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
1738	=item cf::map::unique_maps	2074	=item cf::map::unique_maps
1739		2075
1740	Returns an arrayref of paths of all shared maps that have	2076	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2077	instantiated unique items. May block.
1742		2078
1743	=cut	2079	=cut
1744		2080
1745	sub unique_maps() {	2081	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2082	[
1747	or return;	2083	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2084	utf8::decode $_;
1753	next if /\.pst$/;	2085	/\.map$/
1754	next unless /^$PATH_SEP/o;	2086	? normalise $_
1755		2087	: ()
1756	push @paths, cf::map::normalise $_;	2088	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2089	]
1758
1759	\@paths
1760	}	2090	}
1761		2091
1762	package cf;	2092	package cf;
1763		2093
1764	=back	2094	=back
…		…
1810		2140
1811	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1812		2142
1813	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1815	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1816	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1818	}	2162	}
1819	}	2163	}
1820		2164
1821	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1822		2166
…		…
1870	$self->deactivate_recursive;	2214	$self->deactivate_recursive;
1871		2215
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2217
1874	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2218	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2219	if $self->map && $self->map->{path} ne "{link}";
1876		2220
1877	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2221	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1878	}	2222	}
1879		2223
1880	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1882		2228
1883	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1884		2230
1885	unless ($map) {	2231	unless ($map) {
1886	# restore original map position	2232	# restore original map position
…		…
1909		2255
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1912	}	2258	}
1913		2259
1914	cf::player->attach (
1915	on_logout => sub {
1916	my ($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)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1947		2261
		2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
		2266
1948	=cut	2267	=cut
		2268
		2269	our $GOTOGEN;
1949		2270
1950	sub cf::object::player::goto {	2271	sub cf::object::player::goto {
1951	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1952		2276
1953	$self->enter_link;	2277	$self->enter_link;
1954		2278
1955	(async {	2279	(async {
1956	my $map = eval {	2280	my $map = eval {
1957	my $map = cf::map::find $path;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1958	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
		2285	$map = $check->($map) if $check && $map;
		2286	} else {
		2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2288	}
		2289
1959	$map	2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2295	LOG llevError \| logBacktrace, Carp::longmess $@;
1960	} or	2296	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1962		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1964	})->prio (1);	2302	})->prio (1);
1965	}	2303	}
1966		2304
1967	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1968		2306
…		…
2037	my $hp = $exit->stats->hp;	2375	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;	2376	my $sp = $exit->stats->sp;
2039		2377
2040	$self->enter_link;	2378	$self->enter_link;
2041		2379
		2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
		2383
2042	(async {	2384	(async {
2043	$self->deactivate_recursive; # just to be sure	2385	$self->deactivate_recursive; # just to be sure
2044	unless (eval {	2386	unless (eval {
2045	$self->goto ($slaying, $hp, $sp);	2387	$self->goto ($slaying, $hp, $sp);
2046		2388
…		…
2073		2415
2074	utf8::encode $text;	2416	utf8::encode $text;
2075	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2076	}	2418	}
2077		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra \|\| length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
2078	=item $client->ext_event ($type, %msg)	2460	=item $client->ext_event ($type, %msg)
2079		2461
2080	Sends an exti event to the client.	2462	Sends an ext event to the client.
2081		2463
2082	=cut	2464	=cut
2083		2465
2084	sub cf::client::ext_event($$%) {	2466	sub cf::client::ext_event($$%) {
2085	my ($self, $type, %msg) = @_;	2467	my ($self, $type, %msg) = @_;
2086		2468
2087	$msg{msgtype} = "event_$type";	2469	$msg{msgtype} = "event_$type";
2088	$self->send_packet ("ext " . cf::to_json \%msg);	2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2089	}	2471	}
2090		2472
2091	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
2092		2474
2093	Queues a query to the client, calling the given callback with	2475	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>,	2476	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>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2096		2478
2097	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
2098	reliable at some point in the future.	2480	become reliable at some point in the future.
2099		2481
2100	=cut	2482	=cut
2101		2483
2102	sub cf::client::query {	2484	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2493	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2495
2114	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
2116	}	2500	}
2117		2501
2118	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
2119	on_reply => sub {	2508	on_reply => sub {
2120	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
2121		2510
2122	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
2123	# get handled first	2512	# get handled first
…		…
2135	} else {	2524	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	2526	}
2138	}	2527	}
2139	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
2140	);	2547	);
2141		2548
2142	=item $client->async (\&cb)	2549	=item $client->async (\&cb)
2143		2550
2144	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
…		…
2193		2600
2194	=pod	2601	=pod
2195		2602
2196	The following functions and methods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
2197		2604
2198	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
2199	cf::object::player player	2609	cf::object::player
2200	cf::player peaceful	2610	player
2201	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
2202		2617
2203	=cut	2618	=cut
2204		2619
2205	for (	2620	for (
2206	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
2207	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
2209	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
2210	) {	2626	) {
2211	no strict 'refs';	2627	no strict 'refs';
…		…
2280	}	2696	}
2281		2697
2282	=back	2698	=back
2283		2699
2284	=cut	2700	=cut
2285
2286	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$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 $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459		2701
2460	#############################################################################	2702	#############################################################################
2461	# the server's init and main functions	2703	# the server's init and main functions
2462		2704
2463	sub load_facedata($) {	2705	sub load_facedata($) {
…		…
2523	}	2765	}
2524		2766
2525	sub reload_archetypes {	2767	sub reload_archetypes {
2526	load_resource_file "$DATADIR/archetypes"	2768	load_resource_file "$DATADIR/archetypes"
2527	or die "unable to load archetypes\n";	2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
2528	}	2775	}
2529		2776
2530	sub reload_treasures {	2777	sub reload_treasures {
2531	load_resource_file "$DATADIR/treasures"	2778	load_resource_file "$DATADIR/treasures"
2532	or die "unable to load treasurelists\n";	2779	or die "unable to load treasurelists\n";
…		…
2535	sub reload_resources {	2782	sub reload_resources {
2536	warn "reloading resource files...\n";	2783	warn "reloading resource files...\n";
2537		2784
2538	reload_regions;	2785	reload_regions;
2539	reload_facedata;	2786	reload_facedata;
		2787	#reload_archetypes;#d#
2540	reload_archetypes;	2788	reload_archetypes;
2541	reload_treasures;	2789	reload_treasures;
2542		2790
2543	warn "finished reloading resource files\n";	2791	warn "finished reloading resource files\n";
2544	}	2792	}
…		…
2601	},	2849	},
2602	);	2850	);
2603	}	2851	}
2604	}	2852	}
2605		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
2606	sub emergency_save() {	2892	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	2893	my $freeze_guard = cf::freeze_mainloop;
2608		2894
2609	warn "enter emergency perl save\n";	2895	warn "enter emergency perl save\n";
2610		2896
…		…
2685	%EXT_CORO = ();	2971	%EXT_CORO = ();
2686		2972
2687	warn "removing commands";	2973	warn "removing commands";
2688	%COMMAND = ();	2974	%COMMAND = ();
2689		2975
2690	warn "removing ext commands";	2976	warn "removing ext/exti commands";
2691	%EXTCMD = ();	2977	%EXTCMD = ();
		2978	%EXTICMD = ();
2692		2979
2693	warn "unloading/nuking all extensions";	2980	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {	2981	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";	2982	warn "... unloading $pkg";
2696		2983
…		…
2814	my $signal = new Coro::Signal;	3101	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3102	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3103	$signal->wait;
2817	}	3104	}
2818		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2819	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2820	reentrant => 0,	3109	reentrant => 0,
2821	parked => 1,	3110	parked => 1,
2822	prio => 0,	3111	prio => 0,
2823	at => $NEXT_TICK \|\| $TICK,	3112	at => $NEXT_TICK \|\| $TICK,
…		…
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3117	unless ++$bug_warning > 10;
2829	return;	3118	return;
2830	}	3119	}
2831		3120
2832	$NOW = Event::time;	3121	$NOW = $tick_start = Event::time;
2833		3122
2834	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
		3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3146	};
2835		3147
2836	$RUNTIME += $TICK;	3148	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2838		3150
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2845	}	3157	}
2846		3158
2847	# my $AFTER = Event::time;	3159	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#	3160	# warn $AFTER - $NOW;#d#
2849		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2850	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2852		3173
2853	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
2855		3176
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3177	$LOAD = ($NOW - $tick_start) / $TICK;
2857	$sig->send;	3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2858	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;
2861	}
2862		3179
2863	_post_tick;	3180	_post_tick;
		3181
		3182
2864	},	3183	},
2865	);	3184	);
2866		3185
2867	{	3186	{
2868	BDB::max_poll_time $TICK * 0.1;	3187	BDB::max_poll_time $TICK * 0.1;

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs. Revision 1.299 by root, Sun Jul 8 14:56:05 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.299 by root, Sun Jul 8 14:56:05 2007 UTC