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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 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	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	412	=cut
377	or return;
378		413
379	my $value = $cf::RUNTIME + 90 + 10;	414	sub _store_scalar {
380	# 10 is the runtime save interval, for a monotonic clock	415	open my $fh, ">", \my $buf
381	# 60 allows for the watchdog to kill the server.	416	or die "fork_call: cannot open fh-to-buf in child : $!";
382		417	Storable::store_fd $_[0], $fh;
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
384	and return;
385
386	# always fsync - this file is important
387	aio_fsync $fh
388	and return;
389
390	close $fh	418	close $fh;
391	or return;
392		419
393	aio_rename "$runtime~", $runtime	420	$buf
394	and return;	421	}
395		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		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 $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
396	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		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"
397	}	581	}
398		582
399	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
400		584
401	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.
…		…
419	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")
420	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
421		605
422	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>
423	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
424	crossfire+).	608	Crossfire TRT).
425		609
426	=over 4	610	=over 4
427		611
428	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
429		613
…		…
592	$registry = $CB_TYPE[$object_type] \|\|= [];	776	$registry = $CB_TYPE[$object_type] \|\|= [];
593		777
594	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
598		782
599	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	784	my $pkg = shift @arg;
601		785
602	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
632	}	816	}
633		817
634	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
635	} else {	819	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	821	}
638		822
639	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
640	}	824	}
641		825
…		…
643	if (ref $_[0]) {	827	if (ref $_[0]) {
644	_object_attach @_;	828	_object_attach @_;
645	} else {	829	} else {
646	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
647	}	831	}
		832	_recalc_want;
648	};	833	};
649		834
650	# all those should be optimised	835	# all those should be optimised
651	sub cf::attachable::detach {	836	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
656	reattach ($obj);	841	reattach ($obj);
657	} else {	842	} else {
658	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
659	}	844	}
		845	_recalc_want;
660	};	846	};
661		847
662	sub cf::attachable::attached {	848	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
664		850
…		…
837	or return;	1023	or return;
838	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
839	}	1025	}
840		1026
841	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
842	$filename, length $data, scalar @{$av \|\| []};#d#	1028	$filename, length $data, scalar @{$av \|\| []};
843	return ($data, $av);	1029	return ($data, $av);
844	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
845		1037
846	#############################################################################	1038	#############################################################################
847	# command handling &c	1039	# command handling &c
848		1040
849	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1055	}
864		1056
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1058
867	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.
868		1064
869	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
870	called.	1066	called.
871		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
872	=cut	1079	=cut
873		1080
874	sub register_extcmd {	1081	sub register_extcmd {
875	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
876		1083
877	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
878	}	1091	}
879		1092
880	cf::player->attach (	1093	cf::player->attach (
881	on_command => sub {	1094	on_command => sub {
882	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1104	cf::override;
892	},	1105	},
893	on_extcmd => sub {	1106	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
895		1108
896	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1110
898	if (ref $msg) {	1111	if (ref $msg) {
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
900	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
901	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
907		1120
908	cf::override;	1121	cf::override;
909	},	1122	},
910	);	1123	);
911		1124
912	sub load_extension {
913	my ($path) = @_;
914
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
916	my $base = $1;
917	my $pkg = $1;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}
940	die $@;
941	}
942
943	push @EXTS, $pkg;
944	}
945
946	sub load_extensions {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
947	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1130	next unless -r $path;
949	eval {	1131
950	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;
951	1	1189	}
952	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
953	}	1195	};
954	}	1196	}
955		1197
956	#############################################################################	1198	#############################################################################
		1199
		1200	=back
957		1201
958	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
959		1203
960	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
961		1205
…		…
1149	}	1393	}
1150		1394
1151	\@paths	1395	\@paths
1152	}	1396	}
1153		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	warn $_;#d#
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1154	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1155		1450
1156	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1157		1452
1158	=cut	1453	=cut
1159		1454
1160	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1161	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1162		1457
1163	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1164		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1460	}
1167		1461
1168	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1169		1463
1170	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1185		1479
1186	package cf::region;	1480	package cf::region;
1187		1481
1188	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1189		1483
1190	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1191		1485
1192	=cut	1486	=cut
1193		1487
1194	sub find_by_path($) {	1488	sub find_by_path($) {
1195	my ($path) = @_;	1489	my ($path) = @_;
…		…
1269	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1270		1564
1271	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1272	local $self->{path};	1566	local $self->{path};
1273	local $self->{load_path};	1567	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1568
1277	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1278	}	1570	}
1279		1571
1280	sub normalise {	1572	sub normalise {
…		…
1380		1672
1381	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1383	}	1675	}
1384		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1385	sub unlink_save {	1685	sub unlink_save {
1386	my ($self) = @_;	1686	my ($self) = @_;
1387		1687
1388	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1445	$self->load_header_orig	1745	$self->load_header_orig
1446	or return;	1746	or return;
1447	$self->prepare_orig;	1747	$self->prepare_orig;
1448	}	1748	}
1449		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1450	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1754	unless $self->default_region;
1452		1755
1453	1	1756	1
1454	}	1757	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1470		1773
1471	$map->load_header	1774	$map->load_header
1472	or return;	1775	or return;
1473		1776
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1780	$map->reset;
1478	undef $guard;	1781	undef $guard;
1479	return find $path;	1782	return find $path;
…		…
1546	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1547		1850
1548	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	1852	if $self->per_player;
1550		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
1551	$self	1857	$self
1552	}	1858	}
1553		1859
1554	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	1861	sub load_diag {
…		…
1665		1971
1666	sub reset_at {	1972	sub reset_at {
1667	my ($self) = @_;	1973	my ($self) = @_;
1668		1974
1669	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1672		1977
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1675		1980
…		…
1686	my ($self) = @_;	1991	my ($self) = @_;
1687		1992
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		1994
1690	return if $self->players;	1995	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		1996
1693	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1694		1998
1695	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1696		2000
1697	# need to save uniques path	2001	# need to save uniques path
1698	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1730	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1731		2035
1732	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1733	}	2037	}
1734		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1735	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1736		2076
1737	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2078	instantiated unique items. May block.
1739		2079
1740	=cut	2080	=cut
1741		2081
1742	sub unique_maps() {	2082	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2083	[
1744	or return;	2084	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2085	utf8::decode $_;
1750	next if /\.pst$/;	2086	/\.map$/
1751	next unless /^$PATH_SEP/o;	2087	? normalise $_
1752		2088	: ()
1753	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2090	]
1755
1756	\@paths
1757	}	2091	}
1758		2092
1759	package cf;	2093	package cf;
1760		2094
1761	=back	2095	=back
…		…
1807		2141
1808	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1809		2143
1810	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1812	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1815	}	2163	}
1816	}	2164	}
1817		2165
1818	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1819		2167
…		…
1867	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1868		2216
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2218
1871	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1873		2221
1874	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1875	}	2223	}
1876		2224
1877	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1879		2229
1880	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1881		2231
1882	unless ($map) {	2232	unless ($map) {
1883	# restore original map position	2233	# restore original map position
…		…
1906		2256
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1909	}	2259	}
1910		2260
1911	cf::player->attach (
1912	on_logout => sub {
1913	my ($pl) = @_;
1914
1915	# abort map switching before logout
1916	if ($pl->ob->{_link_pos}) {
1917	cf::sync_job {
1918	$pl->ob->leave_link
1919	};
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924
1925	# try to abort aborted map switching on player login :)
1926	# should happen only on crashes
1927	if ($pl->ob->{_link_pos}) {
1928	$pl->ob->enter_link;
1929	(async {
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942
1943	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1944		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1945	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1946		2271
1947	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2277
1950	$self->enter_link;	2278	$self->enter_link;
1951		2279
1952	(async {	2280	(async {
1953	my $map = eval {	2281	my $map = eval {
1954	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
		2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2289	}
		2290
1956	$map	2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2296	LOG llevError \| logBacktrace, Carp::longmess $@;
1957	} or	2297	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1959		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1961	})->prio (1);	2303	})->prio (1);
1962	}	2304	}
1963		2305
1964	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1965		2307
…		…
2034	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2036		2378
2037	$self->enter_link;	2379	$self->enter_link;
2038		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
2039	(async {	2385	(async {
2040	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2041	unless (eval {	2387	unless (eval {
2042	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2043		2389
…		…
2070		2416
2071	utf8::encode $text;	2417	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2073	}	2419	}
2074		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra \|\| length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
2075	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2076		2462
2077	Sends an exti event to the client.	2463	Sends an ext event to the client.
2078		2464
2079	=cut	2465	=cut
2080		2466
2081	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2082	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2083		2469
2084	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2086	}	2472	}
2087		2473
2088	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2089		2475
2090	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2479
2094	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	2481	become reliable at some point in the future.
2096		2482
2097	=cut	2483	=cut
2098		2484
2099	sub cf::client::query {	2485	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2494	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2496
2111	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2113	}	2501	}
2114		2502
2115	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2116	on_reply => sub {	2509	on_reply => sub {
2117	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2118		2511
2119	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2120	# get handled first	2513	# get handled first
…		…
2132	} else {	2525	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	2527	}
2135	}	2528	}
2136	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
2137	);	2548	);
2138		2549
2139	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2140		2551
2141	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2190		2601
2191	=pod	2602	=pod
2192		2603
2193	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2194		2605
2195	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2196	cf::object::player player	2610	cf::object::player
2197	cf::player peaceful	2611	player
2198	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2199		2618
2200	=cut	2619	=cut
2201		2620
2202	for (	2621	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2204	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2206	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2207	) {	2627	) {
2208	no strict 'refs';	2628	no strict 'refs';
…		…
2277	}	2697	}
2278		2698
2279	=back	2699	=back
2280		2700
2281	=cut	2701	=cut
2282
2283	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	local $SIG{__WARN__};
2441	eval {
2442	local $SIG{__DIE__};
2443	close $fh1;
2444
2445	my @res = eval { $cb->(@args) };
2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447	};
2448
2449	warn $@ if $@;
2450	_exit 0;
2451	}
2452	}
2453
2454
2455		2702
2456	#############################################################################	2703	#############################################################################
2457	# the server's init and main functions	2704	# the server's init and main functions
2458		2705
2459	sub load_facedata($) {	2706	sub load_facedata($) {
…		…
2519	}	2766	}
2520		2767
2521	sub reload_archetypes {	2768	sub reload_archetypes {
2522	load_resource_file "$DATADIR/archetypes"	2769	load_resource_file "$DATADIR/archetypes"
2523	or die "unable to load archetypes\n";	2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
2524	}	2776	}
2525		2777
2526	sub reload_treasures {	2778	sub reload_treasures {
2527	load_resource_file "$DATADIR/treasures"	2779	load_resource_file "$DATADIR/treasures"
2528	or die "unable to load treasurelists\n";	2780	or die "unable to load treasurelists\n";
…		…
2531	sub reload_resources {	2783	sub reload_resources {
2532	warn "reloading resource files...\n";	2784	warn "reloading resource files...\n";
2533		2785
2534	reload_regions;	2786	reload_regions;
2535	reload_facedata;	2787	reload_facedata;
		2788	#reload_archetypes;#d#
2536	reload_archetypes;	2789	reload_archetypes;
2537	reload_treasures;	2790	reload_treasures;
2538		2791
2539	warn "finished reloading resource files\n";	2792	warn "finished reloading resource files\n";
2540	}	2793	}
…		…
2597	},	2850	},
2598	);	2851	);
2599	}	2852	}
2600	}	2853	}
2601		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
2602	sub emergency_save() {	2893	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	2894	my $freeze_guard = cf::freeze_mainloop;
2604		2895
2605	warn "enter emergency perl save\n";	2896	warn "enter emergency perl save\n";
2606		2897
…		…
2681	%EXT_CORO = ();	2972	%EXT_CORO = ();
2682		2973
2683	warn "removing commands";	2974	warn "removing commands";
2684	%COMMAND = ();	2975	%COMMAND = ();
2685		2976
2686	warn "removing ext commands";	2977	warn "removing ext/exti commands";
2687	%EXTCMD = ();	2978	%EXTCMD = ();
		2979	%EXTICMD = ();
2688		2980
2689	warn "unloading/nuking all extensions";	2981	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {	2982	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";	2983	warn "... unloading $pkg";
2692		2984
…		…
2810	my $signal = new Coro::Signal;	3102	my $signal = new Coro::Signal;
2811	push @WAIT_FOR_TICK_BEGIN, $signal;	3103	push @WAIT_FOR_TICK_BEGIN, $signal;
2812	$signal->wait;	3104	$signal->wait;
2813	}	3105	}
2814		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2815	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2816	reentrant => 0,	3110	reentrant => 0,
2817	parked => 1,	3111	parked => 1,
2818	prio => 0,	3112	prio => 0,
2819	at => $NEXT_TICK \|\| $TICK,	3113	at => $NEXT_TICK \|\| $TICK,
…		…
2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824	unless ++$bug_warning > 10;	3118	unless ++$bug_warning > 10;
2825	return;	3119	return;
2826	}	3120	}
2827		3121
2828	$NOW = Event::time;	3122	$NOW = $tick_start = Event::time;
2829		3123
2830	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
		3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3147	};
2831		3148
2832	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2833	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2834		3151
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2841	}	3158	}
2842		3159
2843	# my $AFTER = Event::time;	3160	# my $AFTER = Event::time;
2844	# warn $AFTER - $NOW;#d#	3161	# warn $AFTER - $NOW;#d#
2845		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2846	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2848		3174
2849	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
2851		3177
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3178	$LOAD = ($NOW - $tick_start) / $TICK;
2853	$sig->send;	3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2854	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;
2857	}
2858		3180
2859	_post_tick;	3181	_post_tick;
		3182
		3183
2860	},	3184	},
2861	);	3185	);
2862		3186
2863	{	3187	{
2864	BDB::max_poll_time $TICK * 0.1;	3188	BDB::max_poll_time $TICK * 0.1;
…		…
2923	prio => 6,	3247	prio => 6,
2924	cb => \&IO::AIO::poll_cb,	3248	cb => \&IO::AIO::poll_cb,
2925	);	3249	);
2926	}	3250	}
2927		3251
		3252	my $_log_backtrace;
		3253
2928	sub _log_backtrace {	3254	sub _log_backtrace {
2929	my ($msg, @addr) = @_;	3255	my ($msg, @addr) = @_;
2930		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
2931	async {	3262	async {
2932	my @bt = fork_call {	3263	my @bt = fork_call {
2933	@addr = map { sprintf "%x", $_ } @addr;	3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2934	open my $fh, "exec addr2line -C -f -i -e \Q$^X\E @addr 2>&1 \|"	3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 \|"
2935	or die "addr2line: $!";	3267	or die "addr2line: $!";
2936		3268
2937	my @funcs;	3269	my @funcs;
2938	my @res = <$fh>;	3270	my @res = <$fh>;
2939	chomp for @res;	3271	chomp for @res;
2940	while (@res) {	3272	while (@res) {
2941	my ($func, $line) = splice @res, 0, 2, ();	3273	my ($func, $line) = splice @res, 0, 2, ();
2942	push @funcs, "[$func] $line";	3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
2943	}	3278	};
2944		3279
2945	@funcs	3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
2946	};	3283	};
2947		3284	} else {
2948	$msg =~ s/\n//;
2949
2950	LOG llevInfo, "[ABT] $msg\n";	3285	LOG llevInfo, "[ABT] $msg\n";
2951	LOG llevInfo, "[ABT] $_\n" for @bt;	3286	LOG llevInfo, "[ABT] [suppressed]\n";
2952	};	3287	}
2953	}	3288	}
2954		3289
2955	# load additional modules	3290	# load additional modules
2956	use cf::pod;	3291	use cf::pod;
2957		3292

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC vs. Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC