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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 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;
59	our $LIBDIR = datadir . "/ext";	61
		62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
60		73
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	75	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
75	our $RUNTIME;	88	our $RUNTIME;
76		89
77	our %PLAYER; # all users	90	our %PLAYER; # all users
78	our %MAP; # all maps	91	our %MAP; # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		93
83	# 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 ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		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 $tick_start; # for load detecting purposes
		100
86	binmode STDOUT;	101	binmode STDOUT;
87	binmode STDERR;	102	binmode STDERR;
88		103
89	# read virtual server time, if available	104	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
94	}	109	}
95		110
96	mkdir cf::localdir;	111	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		113
103	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
104		115
105	sub cf::map::normalise;	116	sub cf::map::normalise;
106		117
…		…
117	=item $cf::RUNTIME	128	=item $cf::RUNTIME
118		129
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	131	every server tick.
121		132
122	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		136
124	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
126		141
127	=item $cf::NOW	142	=item $cf::NOW
128		143
129	The time of the last (current) server tick.	144	The time of the last (current) server tick.
130		145
131	=item $cf::TICK	146	=item $cf::TICK
132		147
133	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		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.
134		159
135	=item %cf::CFG	160	=item %cf::CFG
136		161
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	163	from wherever your confdir points to.
…		…
152	my $msg = join "", @_;	177	my $msg = join "", @_;
153		178
154	$msg .= "\n"	179	$msg .= "\n"
155	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
156		181
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		183
159	utf8::encode $msg;	184	utf8::encode $msg;
160	LOG llevError, $msg;	185	LOG llevError, $msg;
161	};	186	};
162	}	187	}
…		…
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		196
171	# 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
172	# within the Safe compartment.	198	# within the Safe compartment.
173	for my $pkg (qw(	199	for my $pkg (qw(
174	cf::global cf::attachable	200	cf::global cf::attachable
…		…
182	}	208	}
183		209
184	$Event::DIED = sub {	210	$Event::DIED = sub {
185	warn "error in event callback: @_";	211	warn "error in event callback: @_";
186	};	212	};
		213
		214	#############################################################################
187		215
188	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
189		217
190	=over 4	218	=over 4
191		219
…		…
210	$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;
211	$d	239	$d
212	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
213	}	241	}
214		242
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
218		244
219	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
220		246
221	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
222		248
223	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]) }
224		257
225	=item cf::lock_wait $string	258	=item cf::lock_wait $string
226		259
227	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
228		261
…		…
234	returned.	267	returned.
235		268
236	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
238		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
239	=cut	276	=cut
240		277
241	our %LOCK;	278	our %LOCK;
242		279
243	sub lock_wait($) {	280	sub lock_wait($) {
…		…
260		297
261	Coro::guard {	298	Coro::guard {
262	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
264	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
265	}	308	}
266		309
267	sub freeze_mainloop {	310	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
269		312
…		…
284		327
285	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
286		329
287	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
288		331
289	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
292		336
293	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
296	fast or be very important.	340	fast or be very important.
…		…
299		343
300	sub sync_job(&) {	344	sub sync_job(&) {
301	my ($job) = @_;	345	my ($job) = @_;
302		346
303	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
304	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
306		352
307	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
319		365
320	while ($busy) {	366	while ($busy) {
321	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
322	}	368	}
323		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
324	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
325	} else {	378	} else {
326	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
327		380
328	$job->()	381	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
348		401
349	$coro	402	$coro
350	}	403	}
351		404
352	sub write_runtime {	405	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		406
355	my $runtime = cf::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.
356		411
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
358	or return;
359		413
360	my $value = $cf::RUNTIME + 90 + 10;	414	sub _store_scalar {
361	# 10 is the runtime save interval, for a monotonic clock	415	open my $fh, ">", \my $buf
362	# 60 allows for the watchdog to kill the server.	416	or die "fork_call: cannot open fh-to-buf in child : $!";
363		417	Storable::store_fd $_[0], $fh;
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0
365	and return;
366
367	# always fsync - this file is important
368	aio_fsync $fh
369	and return;
370
371	close $fh	418	close $fh;
372	or return;
373		419
374	aio_rename "$runtime~", $runtime	420	$buf
375	and return;	421	}
376		422
		423	sub fork_call(&@) {
		424	my ($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 $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
377	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		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"
378	}	581	}
379		582
380	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
381		584
382	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.
…		…
400	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")
401	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
402		605
403	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>
404	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
405	crossfire+).	608	Crossfire TRT).
406		609
407	=over 4	610	=over 4
408		611
409	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
410		613
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
574		777
575	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		782
580	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	784	my $pkg = shift @arg;
582		785
583	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
613	}	816	}
614		817
615	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
616	} else {	819	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	821	}
619		822
620	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
621	}	824	}
622		825
…		…
624	if (ref $_[0]) {	827	if (ref $_[0]) {
625	_object_attach @_;	828	_object_attach @_;
626	} else {	829	} else {
627	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
628	}	831	}
		832	_recalc_want;
629	};	833	};
630		834
631	# all those should be optimised	835	# all those should be optimised
632	sub cf::attachable::detach {	836	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
637	reattach ($obj);	841	reattach ($obj);
638	} else {	842	} else {
639	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
640	}	844	}
		845	_recalc_want;
641	};	846	};
642		847
643	sub cf::attachable::attached {	848	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
645		850
…		…
818	or return;	1023	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1025	}
821		1026
822	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1029	return ($data, $av);
825	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
826		1037
827	#############################################################################	1038	#############################################################################
828	# command handling &c	1039	# command handling &c
829		1040
830	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1055	}
845		1056
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1058
848	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.
849		1064
850	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
851	called.	1066	called.
852		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
853	=cut	1079	=cut
854		1080
855	sub register_extcmd {	1081	sub register_extcmd {
856	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
857		1083
858	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
859	}	1091	}
860		1092
861	cf::player->attach (	1093	cf::player->attach (
862	on_command => sub {	1094	on_command => sub {
863	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1104	cf::override;
873	},	1105	},
874	on_extcmd => sub {	1106	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
876		1108
877	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1110
879	if (ref $msg) {	1111	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1120
889	cf::override;	1121	cf::override;
890	},	1122	},
891	);	1123	);
892		1124
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
928	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1130	next unless -r $path;
930	eval {	1131
931	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;
932	1	1189	}
933	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
934	}	1195	};
935	}	1196	}
936		1197
937	#############################################################################	1198	#############################################################################
938		1199
		1200	=back
		1201
939	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
940		1203
941	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
942		1205
943	=cut	1206	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1218	Returns the given player object, loading it if necessary (might block).
956		1219
957	=cut	1220	=cut
958		1221
959	sub playerdir($) {	1222	sub playerdir($) {
960	cf::localdir	1223	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1225	}
966		1226
967	sub path($) {	1227	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1348	while and may block, so not sync_job-capable, ever.
1089		1349
1090	=cut	1350	=cut
1091		1351
1092	sub list_logins {	1352	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1353	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1354	or return [];
1095		1355
1096	my @logins;	1356	my @logins;
1097		1357
1098	for my $login (@$dirs) {	1358	for my $login (@$dirs) {
…		…
1133	}	1393	}
1134		1394
1135	\@paths	1395	\@paths
1136	}	1396	}
1137		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/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/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
1138	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1139		1450
1140	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1141		1452
1142	=cut	1453	=cut
1143		1454
1144	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1146		1457
1147	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1148		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1460	}
1151		1461
1152	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1153		1463
1154	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1169		1479
1170	package cf::region;	1480	package cf::region;
1171		1481
1172	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1173		1483
1174	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1175		1485
1176	=cut	1486	=cut
1177		1487
1178	sub find_by_path($) {	1488	sub find_by_path($) {
1179	my ($path) = @_;	1489	my ($path) = @_;
…		…
1253	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1254		1564
1255	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1256	local $self->{path};	1566	local $self->{path};
1257	local $self->{load_path};	1567	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1568
1261	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1262	}	1570	}
1263		1571
1264	sub normalise {	1572	sub normalise {
…		…
1336		1644
1337	# the original (read-only) location	1645	# the original (read-only) location
1338	sub load_path {	1646	sub load_path {
1339	my ($self) = @_;	1647	my ($self) = @_;
1340		1648
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1342	}	1650	}
1343		1651
1344	# the temporary/swap location	1652	# the temporary/swap location
1345	sub save_path {	1653	sub save_path {
1346	my ($self) = @_;	1654	my ($self) = @_;
1347		1655
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1350	}	1658	}
1351		1659
1352	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1353	sub uniq_path {	1661	sub uniq_path {
1354	my ($self) = @_;	1662	my ($self) = @_;
1355		1663
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1358	}	1666	}
1359		1667
1360	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1361	# all maps in C++...	1669	# all maps in C++...
1362	sub change_all_map_light {	1670	sub change_all_map_light {
1363	my ($change) = @_;	1671	my ($change) = @_;
1364		1672
1365	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
		1675	}
		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
1367	}	1683	}
1368		1684
1369	sub unlink_save {	1685	sub unlink_save {
1370	my ($self) = @_;	1686	my ($self) = @_;
1371		1687
…		…
1429	$self->load_header_orig	1745	$self->load_header_orig
1430	or return;	1746	or return;
1431	$self->prepare_orig;	1747	$self->prepare_orig;
1432	}	1748	}
1433		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1434	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1754	unless $self->default_region;
1436		1755
1437	1	1756	1
1438	}	1757	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1454		1773
1455	$map->load_header	1774	$map->load_header
1456	or return;	1775	or return;
1457		1776
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1780	$map->reset;
1462	undef $guard;	1781	undef $guard;
1463	return find $path;	1782	return find $path;
…		…
1474	my ($self) = @_;	1793	my ($self) = @_;
1475		1794
1476	local $self->{deny_reset} = 1; # loading can take a long time	1795	local $self->{deny_reset} = 1; # loading can take a long time
1477		1796
1478	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1480		1801
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1803
1483	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1484		1805
1485	$self->alloc;	1806	$self->alloc;
1486		1807
1487	$self->pre_load;	1808	$self->pre_load;
1488	Coro::cede;
1489
1490	$self->_load_objects ($self->{load_path}, 1)
1491	or return;
1492
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1494	if delete $self->{load_original};
1495
1496	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {
1499	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);
1501	}
1502	}
1503
1504	Coro::cede;
1505	# now do the right thing for maps
1506	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;	1809	Coro::cede;
1514	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1829	unless $self->difficulty;
1517	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1518	$self->activate;	1839	$self->activate;
1519	Coro::cede;	1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1843	}
1521		1844
1522	$self->post_load;	1845	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1846	}
1527		1847
1528	sub customise_for {	1848	sub customise_for {
1529	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1530		1850
1531	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1533		1856
1534	$self	1857	$self
1535	}	1858	}
1536		1859
1537	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1648		1971
1649	sub reset_at {	1972	sub reset_at {
1650	my ($self) = @_;	1973	my ($self) = @_;
1651		1974
1652	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1655		1977
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		1980
…		…
1669	my ($self) = @_;	1991	my ($self) = @_;
1670		1992
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		1994
1673	return if $self->players;	1995	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		1996
1676	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1677		1998
1678	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1679		2000
1680	# need to save uniques path	2001	# need to save uniques path
1681	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1714		2035
1715	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1716	}	2037	}
1717		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
1718	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1719		2076
1720	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2078	instantiated unique items. May block.
1722		2079
1723	=cut	2080	=cut
1724		2081
1725	sub unique_maps() {	2082	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1727	or return;	2084	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2085	utf8::decode $_;
1733	next if /\.pst$/;	2086	/\.map$/
1734	next unless /^$PATH_SEP/o;	2087	? normalise $_
1735		2088	: ()
1736	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2090	]
1738
1739	\@paths
1740	}	2091	}
1741		2092
1742	package cf;	2093	package cf;
1743		2094
1744	=back	2095	=back
…		…
1790		2141
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2143
1793	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1795	} 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 {
1796	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1798	}	2163	}
1799	}	2164	}
1800		2165
1801	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1802		2167
…		…
1850	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1851		2216
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2218
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1856		2221
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2223	}
1859		2224
1860	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1862		2229
1863	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1864		2231
1865	unless ($map) {	2232	unless ($map) {
1866	# restore original map position	2233	# restore original map position
…		…
1889		2256
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1892	}	2259	}
1893		2260
1894	cf::player->attach (
1895	on_logout => sub {
1896	my ($pl) = @_;
1897
1898	# abort map switching before logout
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907
1908	# try to abort aborted map switching on player login :)
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925
1926	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1927		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
1928	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1929		2271
1930	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1931	my ($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;
1932		2277
1933	$self->enter_link;	2278	$self->enter_link;
1934		2279
1935	(async {	2280	(async {
1936	my $map = eval {	2281	my $map = eval {
1937	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1938	$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
1939	$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 $@;
1940	} or	2297	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1944	})->prio (1);	2303	})->prio (1);
1945	}	2304	}
1946		2305
1947	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1948		2307
…		…
1987		2346
1988	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1989		2348
1990	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2351	my $meta = "$RANDOMDIR/$md5.meta";
1993		2352
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2355	undef $fh;
1997	aio_rename "$meta~", $meta;	2356	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2019		2378
2020	$self->enter_link;	2379	$self->enter_link;
		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);
2021		2384
2022	(async {	2385	(async {
2023	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2387	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
…		…
2053		2416
2054	utf8::encode $text;	2417	utf8::encode $text;
2055	$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);
2056	}	2419	}
2057		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
2058	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2059		2462
2060	Sends an exti event to the client.	2463	Sends an ext event to the client.
2061		2464
2062	=cut	2465	=cut
2063		2466
2064	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2066		2469
2067	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2069	}	2472	}
2070		2473
2071	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2072		2475
2073	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2074	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>,
2075	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>.
2076		2479
2077	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
2078	reliable at some point in the future.	2481	become reliable at some point in the future.
2079		2482
2080	=cut	2483	=cut
2081		2484
2082	sub cf::client::query {	2485	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2494	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2496
2094	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2096	}	2501	}
2097		2502
2098	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2099	on_reply => sub {	2509	on_reply => sub {
2100	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2101		2511
2102	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2103	# get handled first	2513	# get handled first
…		…
2115	} else {	2525	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2527	}
2118	}	2528	}
2119	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($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	},
2120	);	2548	);
2121		2549
2122	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2123		2551
2124	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2173		2601
2174	=pod	2602	=pod
2175		2603
2176	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2177		2605
2178	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2179	cf::object::player player	2610	cf::object::player
2180	cf::player peaceful	2611	player
2181	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2182		2618
2183	=cut	2619	=cut
2184		2620
2185	for (	2621	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2187	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2190	) {	2627	) {
2191	no strict 'refs';	2628	no strict 'refs';
…		…
2260	}	2697	}
2261		2698
2262	=back	2699	=back
2263		2700
2264	=cut	2701	=cut
2265
2266	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434		2702
2435	#############################################################################	2703	#############################################################################
2436	# the server's init and main functions	2704	# the server's init and main functions
2437		2705
2438	sub load_facedata($) {	2706	sub load_facedata($) {
…		…
2485	}	2753	}
2486		2754
2487	1	2755	1
2488	}	2756	}
2489		2757
		2758	sub reload_regions {
		2759	load_resource_file "$MAPDIR/regions"
		2760	or die "unable to load regions file\n";
		2761	}
		2762
2490	sub reload_facedata {	2763	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	2764	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	2765	or die "unable to load facedata\n";
2493	}	2766	}
2494		2767
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	2768	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	2769	load_resource_file "$DATADIR/archetypes"
2502	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";
2503	}	2776	}
2504		2777
2505	sub reload_treasures {	2778	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	2779	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	2780	or die "unable to load treasurelists\n";
2508	}	2781	}
2509		2782
2510	sub reload_resources {	2783	sub reload_resources {
2511	warn "reloading resource files...\n";	2784	warn "reloading resource files...\n";
2512		2785
2513	reload_regions;	2786	reload_regions;
2514	reload_facedata;	2787	reload_facedata;
		2788	#reload_archetypes;#d#
2515	reload_archetypes;	2789	reload_archetypes;
2516	reload_treasures;	2790	reload_treasures;
2517		2791
2518	warn "finished reloading resource files\n";	2792	warn "finished reloading resource files\n";
2519	}	2793	}
…		…
2521	sub init {	2795	sub init {
2522	reload_resources;	2796	reload_resources;
2523	}	2797	}
2524		2798
2525	sub cfg_load {	2799	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	2800	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	2801	or return;
2528		2802
2529	local $/;	2803	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	2804	*CFG = YAML::Syck::Load <$fh>;
2531		2805
…		…
2576	},	2850	},
2577	);	2851	);
2578	}	2852	}
2579	}	2853	}
2580		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
2581	sub emergency_save() {	2893	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	2894	my $freeze_guard = cf::freeze_mainloop;
2583		2895
2584	warn "enter emergency perl save\n";	2896	warn "enter emergency perl save\n";
2585		2897
…		…
2660	%EXT_CORO = ();	2972	%EXT_CORO = ();
2661		2973
2662	warn "removing commands";	2974	warn "removing commands";
2663	%COMMAND = ();	2975	%COMMAND = ();
2664		2976
2665	warn "removing ext commands";	2977	warn "removing ext/exti commands";
2666	%EXTCMD = ();	2978	%EXTCMD = ();
		2979	%EXTICMD = ();
2667		2980
2668	warn "unloading/nuking all extensions";	2981	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	2982	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	2983	warn "... unloading $pkg";
2671		2984
…		…
2789	my $signal = new Coro::Signal;	3102	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3103	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3104	$signal->wait;
2792	}	3105	}
2793		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2794	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2795	reentrant => 0,	3110	reentrant => 0,
2796	parked => 1,	3111	parked => 1,
2797	prio => 0,	3112	prio => 0,
2798	at => $NEXT_TICK || $TICK,	3113	at => $NEXT_TICK || $TICK,
…		…
2802	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"
2803	unless ++$bug_warning > 10;	3118	unless ++$bug_warning > 10;
2804	return;	3119	return;
2805	}	3120	}
2806		3121
2807	$NOW = Event::time;	3122	$NOW = $tick_start = Event::time;
2808		3123
2809	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	};
2810		3148
2811	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2813		3151
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2820	}	3158	}
2821		3159
2822	# my $AFTER = Event::time;	3160	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#	3161	# warn $AFTER - $NOW;#d#
2824		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
2825	# 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
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2827		3174
2828	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
2830		3177
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3178	$LOAD = ($NOW - $tick_start) / $TICK;
2832	$sig->send;	3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2833	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;
2836	}
2837		3180
2838	_post_tick;	3181	_post_tick;
		3182
		3183
2839	},	3184	},
2840	);	3185	);
2841		3186
2842	{	3187	{
2843	BDB::max_poll_time $TICK * 0.1;	3188	BDB::max_poll_time $TICK * 0.1;
…		…
2871		3216
2872	cf::sync_job {	3217	cf::sync_job {
2873	eval {	3218	eval {
2874	BDB::db_env_open	3219	BDB::db_env_open
2875	$DB_ENV,	3220	$DB_ENV,
2876	$BDB_ENV_DIR,	3221	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3222	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3223	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3224	0666;
2880		3225
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3226	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882		3227
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3228	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;	3229	$DB_ENV->set_lk_detect;
2885	};	3230	};
2886		3231
…		…
2902	prio => 6,	3247	prio => 6,
2903	cb => \&IO::AIO::poll_cb,	3248	cb => \&IO::AIO::poll_cb,
2904	);	3249	);
2905	}	3250	}
2906		3251
		3252	my $_log_backtrace;
		3253
		3254	sub _log_backtrace {
		3255	my ($msg, @addr) = @_;
		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
		3262	async {
		3263	my @bt = fork_call {
		3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3267	or die "addr2line: $!";
		3268
		3269	my @funcs;
		3270	my @res = <$fh>;
		3271	chomp for @res;
		3272	while (@res) {
		3273	my ($func, $line) = splice @res, 0, 2, ();
		3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
		3278	};
		3279
		3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
		3283	};
		3284	} else {
		3285	LOG llevInfo, "[ABT] $msg\n";
		3286	LOG llevInfo, "[ABT] [suppressed]\n";
		3287	}
		3288	}
		3289
2907	# load additional modules	3290	# load additional modules
2908	use cf::pod;	3291	use cf::pod;
2909		3292
2910	END { cf::emergency_save }	3293	END { cf::emergency_save }
2911		3294

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