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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.313 by root, Sun Jul 22 14:17:58 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 ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	62
		63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
60		74
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	76	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
75	our $RUNTIME;	89	our $RUNTIME;
76		90
77	our %PLAYER; # all users	91	our %PLAYER; # all users
78	our %MAP; # all maps	92	our %MAP; # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	93	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		94
83	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
86	binmode STDOUT;	102	binmode STDOUT;
87	binmode STDERR;	103	binmode STDERR;
88		104
89	# read virtual server time, if available	105	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
94	}	110	}
95		111
96	mkdir cf::localdir;	112	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	113	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		114
103	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
104		116
105	sub cf::map::normalise;	117	sub cf::map::normalise;
106		118
…		…
117	=item $cf::RUNTIME	129	=item $cf::RUNTIME
118		130
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	132	every server tick.
121		133
122	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		137
124	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
126		142
127	=item $cf::NOW	143	=item $cf::NOW
128		144
129	The time of the last (current) server tick.	145	The time of the last (current) server tick.
130		146
131	=item $cf::TICK	147	=item $cf::TICK
132		148
133	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
134		160
135	=item %cf::CFG	161	=item %cf::CFG
136		162
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	164	from wherever your confdir points to.
…		…
141		167
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	169	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
		177
146	=back	178	=back
147		179
148	=cut	180	=cut
149		181
150	BEGIN {	182	BEGIN {
…		…
152	my $msg = join "", @_;	184	my $msg = join "", @_;
153		185
154	$msg .= "\n"	186	$msg .= "\n"
155	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
156		188
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		190
159	utf8::encode $msg;	191	utf8::encode $msg;
160	LOG llevError, $msg;	192	LOG llevError, $msg;
161	};	193	};
162	}	194	}
…		…
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		203
171	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	205	# within the Safe compartment.
173	for my $pkg (qw(	206	for my $pkg (qw(
174	cf::global cf::attachable	207	cf::global cf::attachable
…		…
182	}	215	}
183		216
184	$Event::DIED = sub {	217	$Event::DIED = sub {
185	warn "error in event callback: @_";	218	warn "error in event callback: @_";
186	};	219	};
		220
		221	#############################################################################
187		222
188	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
189		224
190	=over 4	225	=over 4
191		226
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	246	$d
212	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
213	}	248	}
214		249
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
218		251
219	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
220		253
221	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
222		255
223	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
224		264
225	=item cf::lock_wait $string	265	=item cf::lock_wait $string
226		266
227	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
228		268
…		…
234	returned.	274	returned.
235		275
236	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
238		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
239	=cut	283	=cut
240		284
241	our %LOCK;	285	our %LOCK;
242		286
243	sub lock_wait($) {	287	sub lock_wait($) {
…		…
260		304
261	Coro::guard {	305	Coro::guard {
262	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
264	}	308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
265	}	315	}
266		316
267	sub freeze_mainloop {	317	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
269		319
…		…
284		334
285	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
286		336
287	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
288		338
289	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
292		343
293	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
296	fast or be very important.	347	fast or be very important.
…		…
299		350
300	sub sync_job(&) {	351	sub sync_job(&) {
301	my ($job) = @_;	352	my ($job) = @_;
302		353
303	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
304	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
306		359
307	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	361	# (but this is cancel-safe)
…		…
319		372
320	while ($busy) {	373	while ($busy) {
321	Coro::cede or Event::one_event;	374	Coro::cede or Event::one_event;
322	}	375	}
323		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
324	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
325	} else {	385	} else {
326	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
327		387
328	$job->()	388	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
348		408
349	$coro	409	$coro
350	}	410	}
351		411
352	sub write_runtime {	412	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		413
355	my $runtime = cf::localdir . "/runtime";	414	Executes the given code block with the given arguments in a seperate
		415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
356		418
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	419	=cut
358	or return;
359		420
360	my $value = $cf::RUNTIME + 90 + 10;	421	sub _store_scalar {
361	# 10 is the runtime save interval, for a monotonic clock	422	open my $fh, ">", \my $buf
362	# 60 allows for the watchdog to kill the server.	423	or die "fork_call: cannot open fh-to-buf in child : $!";
363		424	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	425	close $fh;
372	or return;
373		426
374	aio_rename "$runtime~", $runtime	427	$buf
375	and return;	428	}
376		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
377	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
378	}	588	}
379		589
380	=item cf::datalog type => key => value, ...	590	=item cf::datalog type => key => value, ...
381		591
382	Log a datalog packet of the given type with the given key-value pairs.	592	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")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
402		612
403	In the following description, CLASS can be any of C<global>, C<object>	613	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	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	615	Crossfire TRT).
406		616
407	=over 4	617	=over 4
408		618
409	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
410		620
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
574		784
575	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		789
580	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	791	my $pkg = shift @arg;
582		792
583	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
613	}	823	}
614		824
615	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
616	} else {	826	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	828	}
619		829
620	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
621	}	831	}
622		832
…		…
624	if (ref $_[0]) {	834	if (ref $_[0]) {
625	_object_attach @_;	835	_object_attach @_;
626	} else {	836	} else {
627	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
628	}	838	}
		839	_recalc_want;
629	};	840	};
630		841
631	# all those should be optimised	842	# all those should be optimised
632	sub cf::attachable::detach {	843	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
637	reattach ($obj);	848	reattach ($obj);
638	} else {	849	} else {
639	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
640	}	851	}
		852	_recalc_want;
641	};	853	};
642		854
643	sub cf::attachable::attached {	855	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
645		857
…		…
660	";	872	";
661	die if $@;	873	die if $@;
662	}	874	}
663		875
664	our $override;	876	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		878
667	sub override {	879	sub override {
668	$override = 1;	880	$override = 1;
669	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
670	}	882	}
671		883
672	sub do_invoke {	884	sub do_invoke {
673	my $event = shift;	885	my $event = shift;
674	my $callbacks = shift;	886	my $callbacks = shift;
675		887
676	@invoke_results = ();	888	@INVOKE_RESULTS = ();
677		889
678	local $override;	890	local $override;
679		891
680	for (@$callbacks) {	892	for (@$callbacks) {
681	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
698		910
699	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
700		912
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		916
705	=back	917	=back
706		918
707	=cut	919	=cut
708		920
709	#############################################################################	921	#############################################################################
710	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
711		934
712	sub reattach {	935	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	937	my ($obj) = @_;
715		938
…		…
818	or return;	1041	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1043	}
821		1044
822	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1047	return ($data, $av);
825	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
826		1055
827	#############################################################################	1056	#############################################################################
828	# command handling &c	1057	# command handling &c
829		1058
830	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1073	}
845		1074
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1076
848	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
849		1082
850	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
851	called.	1084	called.
852		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
853	=cut	1097	=cut
854		1098
855	sub register_extcmd {	1099	sub register_extcmd {
856	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
857		1101
858	$EXTCMD{$name} = $cb;	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
859	}	1109	}
860		1110
861	cf::player->attach (	1111	cf::player->attach (
862	on_command => sub {	1112	on_command => sub {
863	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1122	cf::override;
873	},	1123	},
874	on_extcmd => sub {	1124	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
876		1126
877	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1128
879	if (ref $msg) {	1129	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1138
889	cf::override;	1139	cf::override;
890	},	1140	},
891	);	1141	);
892		1142
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 {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
928	for my $ext (<$LIBDIR/*.ext>) {	1147	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1148	next unless -r $path;
930	eval {	1149
931	load_extension $ext;	1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
932	1	1207	}
933	} or warn "$ext not loaded: $@";	1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
934	}	1213	};
935	}	1214	}
936		1215
937	#############################################################################	1216	#############################################################################
938		1217
		1218	=back
		1219
939	=head2 CORE EXTENSIONS	1220	=head2 CORE EXTENSIONS
940		1221
941	Functions and methods that extend core crossfire objects.	1222	Functions and methods that extend core crossfire objects.
942		1223
943	=cut	1224	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1236	Returns the given player object, loading it if necessary (might block).
956		1237
957	=cut	1238	=cut
958		1239
959	sub playerdir($) {	1240	sub playerdir($) {
960	cf::localdir	1241	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1242	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1243	}
966		1244
967	sub path($) {	1245	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1246	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1366	while and may block, so not sync_job-capable, ever.
1089		1367
1090	=cut	1368	=cut
1091		1369
1092	sub list_logins {	1370	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1371	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1372	or return [];
1095		1373
1096	my @logins;	1374	my @logins;
1097		1375
1098	for my $login (@$dirs) {	1376	for my $login (@$dirs) {
…		…
1133	}	1411	}
1134		1412
1135	\@paths	1413	\@paths
1136	}	1414	}
1137		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
1138	=item $player->ext_reply ($msgid, %msg)	1466	=item $player->ext_reply ($msgid, %msg)
1139		1467
1140	Sends an ext reply to the player.	1468	Sends an ext reply to the player.
1141		1469
1142	=cut	1470	=cut
1143		1471
1144	sub ext_reply($$%) {	1472	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1473	my ($self, $id, %msg) = @_;
1146		1474
1147	$msg{msgid} = $id;	1475	$msg{msgid} = $id;
1148		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1477	}
1151		1478
1152	=item $player->ext_event ($type, %msg)	1479	=item $player->ext_event ($type, %msg)
1153		1480
1154	Sends an ext event to the client.	1481	Sends an ext event to the client.
…		…
1169		1496
1170	package cf::region;	1497	package cf::region;
1171		1498
1172	=item cf::region::find_by_path $path	1499	=item cf::region::find_by_path $path
1173		1500
1174	Tries to decuce the probable region for a map knowing only its path.	1501	Tries to decuce the likely region for a map knowing only its path.
1175		1502
1176	=cut	1503	=cut
1177		1504
1178	sub find_by_path($) {	1505	sub find_by_path($) {
1179	my ($path) = @_;	1506	my ($path) = @_;
1180		1507
1181	my ($match, $specificity);	1508	my ($match, $specificity);
1182		1509
1183	for my $region (list) {	1510	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1511	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1512	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1513	if $region->specificity > $specificity;
1187	}	1514	}
1188	}	1515	}
1189		1516
…		…
1253	my ($self, $merge) = @_;	1580	my ($self, $merge) = @_;
1254		1581
1255	# we have to keep some variables in memory intact	1582	# we have to keep some variables in memory intact
1256	local $self->{path};	1583	local $self->{path};
1257	local $self->{load_path};	1584	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1585
1261	$self->SUPER::thawer_merge ($merge);	1586	$self->SUPER::thawer_merge ($merge);
1262	}	1587	}
1263		1588
1264	sub normalise {	1589	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1636	$self->init; # pass $1 etc.
1312	return $self;	1637	return $self;
1313	}	1638	}
1314	}	1639	}
1315		1640
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1642	()
1318	}	1643	}
1319		1644
1320	sub init {	1645	sub init {
1321	my ($self) = @_;	1646	my ($self) = @_;
…		…
1336		1661
1337	# the original (read-only) location	1662	# the original (read-only) location
1338	sub load_path {	1663	sub load_path {
1339	my ($self) = @_;	1664	my ($self) = @_;
1340		1665
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1666	"$MAPDIR/$self->{path}.map"
1342	}	1667	}
1343		1668
1344	# the temporary/swap location	1669	# the temporary/swap location
1345	sub save_path {	1670	sub save_path {
1346	my ($self) = @_;	1671	my ($self) = @_;
1347		1672
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1673	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1674	"$TMPDIR/$path.map"
1350	}	1675	}
1351		1676
1352	# the unique path, undef == no special unique path	1677	# the unique path, undef == no special unique path
1353	sub uniq_path {	1678	sub uniq_path {
1354	my ($self) = @_;	1679	my ($self) = @_;
1355		1680
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1681	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1682	"$UNIQUEDIR/$path"
1358	}	1683	}
1359		1684
1360	# and all this just because we cannot iterate over	1685	# and all this just because we cannot iterate over
1361	# all maps in C++...	1686	# all maps in C++...
1362	sub change_all_map_light {	1687	sub change_all_map_light {
1363	my ($change) = @_;	1688	my ($change) = @_;
1364		1689
1365	$_->change_map_light ($change)	1690	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1691	for grep $_->outdoor, values %cf::MAP;
		1692	}
		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
1367	}	1700	}
1368		1701
1369	sub unlink_save {	1702	sub unlink_save {
1370	my ($self) = @_;	1703	my ($self) = @_;
1371		1704
…		…
1429	$self->load_header_orig	1762	$self->load_header_orig
1430	or return;	1763	or return;
1431	$self->prepare_orig;	1764	$self->prepare_orig;
1432	}	1765	}
1433		1766
		1767	$self->{deny_reset} = 1
		1768	if $self->no_reset;
		1769
1434	$self->default_region (cf::region::find_by_path $self->{path})	1770	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1771	unless $self->default_region;
1436		1772
1437	1	1773	1
1438	}	1774	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1454		1790
1455	$map->load_header	1791	$map->load_header
1456	or return;	1792	or return;
1457		1793
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1795	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1796	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1797	$map->reset;
1462	undef $guard;	1798	undef $guard;
1463	return find $path;	1799	return find $path;
…		…
1474	my ($self) = @_;	1810	my ($self) = @_;
1475		1811
1476	local $self->{deny_reset} = 1; # loading can take a long time	1812	local $self->{deny_reset} = 1; # loading can take a long time
1477		1813
1478	my $path = $self->{path};	1814	my $path = $self->{path};
		1815
		1816	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1817	my $guard = cf::lock_acquire "map_load:$path";
1480		1818
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1819	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1820
1483	$self->in_memory (cf::MAP_LOADING);	1821	$self->in_memory (cf::MAP_LOADING);
1484		1822
1485	$self->alloc;	1823	$self->alloc;
1486		1824
1487	$self->pre_load;	1825	$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;	1826	Coro::cede;
1514	$self->set_darkness_map;	1827
		1828	$self->_load_objects ($self->{load_path}, 1)
		1829	or return;
		1830
		1831	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1832	if delete $self->{load_original};
		1833
		1834	if (my $uniq = $self->uniq_path) {
		1835	utf8::encode $uniq;
		1836	if (aio_open $uniq, O_RDONLY, 0) {
		1837	$self->clear_unique_items;
		1838	$self->_load_objects ($uniq, 0);
		1839	}
		1840	}
		1841
		1842	Coro::cede;
		1843	# now do the right thing for maps
		1844	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1845	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1846	unless $self->difficulty;
1517	Coro::cede;	1847	Coro::cede;
		1848
		1849	unless ($self->{deny_activate}) {
		1850	$self->decay_objects;
		1851	$self->fix_auto_apply;
		1852	$self->update_buttons;
		1853	Coro::cede;
		1854	$self->set_darkness_map;
		1855	Coro::cede;
1518	$self->activate;	1856	$self->activate;
1519	Coro::cede;	1857	}
		1858
		1859	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1860	}
1521		1861
1522	$self->post_load;	1862	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1863	}
1527		1864
1528	sub customise_for {	1865	sub customise_for {
1529	my ($self, $ob) = @_;	1866	my ($self, $ob) = @_;
1530		1867
1531	return find "~" . $ob->name . "/" . $self->{path}	1868	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1869	if $self->per_player;
		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
1533		1873
1534	$self	1874	$self
1535	}	1875	}
1536		1876
1537	# find and load all maps in the 3x3 area around a map	1877	# find and load all maps in the 3x3 area around a map
…		…
1584		1924
1585	undef $MAP_PREFETCH{$path};	1925	undef $MAP_PREFETCH{$path};
1586	$MAP_PREFETCHER ||= cf::async {	1926	$MAP_PREFETCHER ||= cf::async {
1587	while (%MAP_PREFETCH) {	1927	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	1928	for my $path (keys %MAP_PREFETCH) {
1589	my $map = find $path	1929	if (my $map = find $path) {
1590	or next;
1591	$map->load;	1930	$map->load;
		1931	}
1592		1932
1593	delete $MAP_PREFETCH{$path};	1933	delete $MAP_PREFETCH{$path};
1594	}	1934	}
1595	}	1935	}
1596	undef $MAP_PREFETCHER;	1936	undef $MAP_PREFETCHER;
…		…
1648		1988
1649	sub reset_at {	1989	sub reset_at {
1650	my ($self) = @_;	1990	my ($self) = @_;
1651		1991
1652	# TODO: safety, remove and allow resettable per-player maps	1992	# 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};	1993	return 1e99 if $self->{deny_reset};
1655		1994
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		1997
…		…
1669	my ($self) = @_;	2008	my ($self) = @_;
1670		2009
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2011
1673	return if $self->players;	2012	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2013
1676	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
1677		2015
1678	$self->in_memory (cf::MAP_SWAPPED);	2016	$self->in_memory (cf::MAP_SWAPPED);
1679		2017
1680	# need to save uniques path	2018	# need to save uniques path
1681	unless ($self->{deny_save}) {	2019	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	2051	$cf::MAP{$self->path} = $self;
1714		2052
1715	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1716	}	2054	}
1717		2055
		2056	=item $maps = cf::map::tmp_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item $maps = cf::map::random_maps
		2075
		2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
		2078
		2079	=cut
		2080
		2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
1718	=item cf::map::unique_maps	2092	=item cf::map::unique_maps
1719		2093
1720	Returns an arrayref of paths of all shared maps that have	2094	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2095	instantiated unique items. May block.
1722		2096
1723	=cut	2097	=cut
1724		2098
1725	sub unique_maps() {	2099	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2100	[
1727	or return;	2101	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2102	utf8::decode $_;
1733	next if /\.pst$/;	2103	/\.map$/
1734	next unless /^$PATH_SEP/o;	2104	? normalise $_
1735		2105	: ()
1736	push @paths, cf::map::normalise $_;	2106	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2107	]
1738
1739	\@paths
1740	}	2108	}
1741		2109
1742	package cf;	2110	package cf;
1743		2111
1744	=back	2112	=back
…		…
1790		2158
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2160
1793	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1795	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1798	}	2180	}
1799	}	2181	}
1800		2182
1801	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1802		2184
…		…
1850	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
1851		2233
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2235
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2237	if $self->map && $self->map->{path} ne "{link}";
1856		2238
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2240	}
1859		2241
1860	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1862		2246
1863	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1864		2248
1865	unless ($map) {	2249	unless ($map) {
1866	# restore original map position	2250	# restore original map position
…		…
1889		2273
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1892	}	2276	}
1893		2277
1894	cf::player->attach (	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2279
1898	# abort map switching before logout	2280	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2281	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2282	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2283	the new (success) or old (failed) map position. In either case, $done will
1902	};	2284	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2285
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)
1927
1928	=cut	2286	=cut
		2287
		2288	our $GOTOGEN;
1929		2289
1930	sub cf::object::player::goto {	2290	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2295
1933	$self->enter_link;	2296	$self->enter_link;
1934		2297
1935	(async {	2298	(async {
1936	my $map = eval {	2299	my $map = eval {
1937	my $map = cf::map::find $path;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2303	$map = $map->customise_for ($self);
		2304	$map = $check->($map) if $check && $map;
		2305	} else {
		2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
		2308
1939	$map	2309	$map
		2310	};
		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2315	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1944	})->prio (1);	2323	})->prio (1);
1945	}	2324	}
1946		2325
1947	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1948		2327
…		…
1987		2366
1988	$rmp->{random_seed} ||= $exit->random_seed;	2367	$rmp->{random_seed} ||= $exit->random_seed;
1989		2368
1990	my $data = cf::to_json $rmp;	2369	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2370	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2371	my $meta = "$RANDOMDIR/$md5.meta";
1993		2372
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2373	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2374	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2375	undef $fh;
1997	aio_rename "$meta~", $meta;	2376	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2395	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2396	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2397	my $sp = $exit->stats->sp;
2019		2398
2020	$self->enter_link;	2399	$self->enter_link;
		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
2021		2404
2022	(async {	2405	(async {
2023	$self->deactivate_recursive; # just to be sure	2406	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2407	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2408	$self->goto ($slaying, $hp, $sp);
…		…
2053		2436
2054	utf8::encode $text;	2437	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2439	}
2057		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	$color &= ~cf::NDI_UNIQUE; # just in case...
		2456
		2457	if (ref $channel) {
		2458	# send meta info to client, if not yet sent
		2459	unless (exists $self->{channel}{$channel->{id}}) {
		2460	$self->{channel}{$channel->{id}} = $channel;
		2461	$self->ext_event (channel_info => %$channel);
		2462	}
		2463
		2464	$channel = $channel->{id};
		2465	}
		2466
		2467	return unless @extra || length $msg;
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
2058	=item $client->ext_event ($type, %msg)	2493	=item $client->ext_event ($type, %msg)
2059		2494
2060	Sends an exti event to the client.	2495	Sends an ext event to the client.
2061		2496
2062	=cut	2497	=cut
2063		2498
2064	sub cf::client::ext_event($$%) {	2499	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2500	my ($self, $type, %msg) = @_;
2066		2501
		2502	return unless $self->extcmd;
		2503
2067	$msg{msgtype} = "event_$type";	2504	$msg{msgtype} = "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2069	}	2506	}
2070		2507
2071	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
2072		2509
2073	Queues a query to the client, calling the given callback with	2510	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>,	2511	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>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2513
2077	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2515	become reliable at some point in the future.
2079		2516
2080	=cut	2517	=cut
2081		2518
2082	sub cf::client::query {	2519	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2528	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2530
2094	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
2096	}	2535	}
2097		2536
2098	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
2099	on_reply => sub {	2543	on_reply => sub {
2100	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
2101		2545
2102	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
2103	# get handled first	2547	# get handled first
…		…
2115	} else {	2559	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2561	}
2118	}	2562	}
2119	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
2120	);	2582	);
2121		2583
2122	=item $client->async (\&cb)	2584	=item $client->async (\&cb)
2123		2585
2124	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
…		…
2173		2635
2174	=pod	2636	=pod
2175		2637
2176	The following functions and methods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
2177		2639
2178	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
2179	cf::object::player player	2644	cf::object::player
2180	cf::player peaceful	2645	player
2181	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
2182		2652
2183	=cut	2653	=cut
2184		2654
2185	for (	2655	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
2187	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
2190	) {	2661	) {
2191	no strict 'refs';	2662	no strict 'refs';
…		…
2262	=back	2733	=back
2263		2734
2264	=cut	2735	=cut
2265		2736
2266	#############################################################################	2737	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$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	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	2738	# the server's init and main functions
2436		2739
2437	sub load_facedata($) {	2740	sub load_facedata($) {
2438	my ($path) = @_;	2741	my ($path) = @_;
2439		2742
…		…
2451	{	2754	{
2452	my $faces = $facedata->{faceinfo};	2755	my $faces = $facedata->{faceinfo};
2453		2756
2454	while (my ($face, $info) = each %$faces) {	2757	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2459	Coro::cede;	2763
		2764	cf::cede_to_tick;
2460	}	2765	}
2461		2766
2462	while (my ($face, $info) = each %$faces) {	2767	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	2768	next unless $info->{smooth};
2464	my $idx = cf::face::find $face	2769	my $idx = cf::face::find $face
2465	or next;	2770	or next;
2466	if (my $smooth = cf::face::find $info->{smooth}) {	2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	2774	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	2776	}
2471	Coro::cede;	2777
		2778	cf::cede_to_tick;
2472	}	2779	}
2473	}	2780	}
2474		2781
2475	{	2782	{
2476	my $anims = $facedata->{animinfo};	2783	my $anims = $facedata->{animinfo};
2477		2784
2478	while (my ($anim, $info) = each %$anims) {	2785	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	2787	cf::cede_to_tick;
2481	}	2788	}
2482		2789
2483	cf::anim::invalidate_all; # d'oh	2790	cf::anim::invalidate_all; # d'oh
2484	}	2791	}
2485		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
		2821	}
		2822
2486	1	2823	1
2487	}	2824	}
2488		2825
		2826	sub reload_regions {
		2827	load_resource_file "$MAPDIR/regions"
		2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
		2834	}
		2835
2489	sub reload_facedata {	2836	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	2837	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	2838	or die "unable to load facedata\n";
2492	}	2839	}
2493		2840
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	2841	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	2842	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
2502	}	2849	}
2503		2850
2504	sub reload_treasures {	2851	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	2852	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	2853	or die "unable to load treasurelists\n";
2507	}	2854	}
2508		2855
2509	sub reload_resources {	2856	sub reload_resources {
2510	warn "reloading resource files...\n";	2857	warn "reloading resource files...\n";
2511		2858
2512	reload_regions;	2859	reload_regions;
2513	reload_facedata;	2860	reload_facedata;
		2861	#reload_archetypes;#d#
2514	reload_archetypes;	2862	reload_archetypes;
2515	reload_treasures;	2863	reload_treasures;
2516		2864
2517	warn "finished reloading resource files\n";	2865	warn "finished reloading resource files\n";
2518	}	2866	}
…		…
2520	sub init {	2868	sub init {
2521	reload_resources;	2869	reload_resources;
2522	}	2870	}
2523		2871
2524	sub cfg_load {	2872	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	2873	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	2874	or return;
2527		2875
2528	local $/;	2876	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	2877	*CFG = YAML::Syck::Load <$fh>;
2530		2878
…		…
2575	},	2923	},
2576	);	2924	);
2577	}	2925	}
2578	}	2926	}
2579		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
2580	sub emergency_save() {	2966	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	2967	my $freeze_guard = cf::freeze_mainloop;
2582		2968
2583	warn "enter emergency perl save\n";	2969	warn "enter emergency perl save\n";
2584		2970
…		…
2659	%EXT_CORO = ();	3045	%EXT_CORO = ();
2660		3046
2661	warn "removing commands";	3047	warn "removing commands";
2662	%COMMAND = ();	3048	%COMMAND = ();
2663		3049
2664	warn "removing ext commands";	3050	warn "removing ext/exti commands";
2665	%EXTCMD = ();	3051	%EXTCMD = ();
		3052	%EXTICMD = ();
2666		3053
2667	warn "unloading/nuking all extensions";	3054	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {	3055	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";	3056	warn "... unloading $pkg";
2670		3057
…		…
2700	Symbol::delete_package "safe::$_"	3087	Symbol::delete_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3088	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3089
2703	warn "unloading cf.pm \"a bit\"";	3090	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3091	delete $INC{"cf.pm"};
		3092	delete $INC{"cf/pod.pm"};
2705		3093
2706	# don't, removes xs symbols, too,	3094	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3095	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3096	#Symbol::delete_package __PACKAGE__;
2709		3097
…		…
2787	my $signal = new Coro::Signal;	3175	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3176	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3177	$signal->wait;
2790	}	3178	}
2791		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2792	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2793	reentrant => 0,	3183	reentrant => 0,
2794	parked => 1,	3184	parked => 1,
2795	prio => 0,	3185	prio => 0,
2796	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
…		…
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3190	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3191	unless ++$bug_warning > 10;
2802	return;	3192	return;
2803	}	3193	}
2804		3194
2805	$NOW = Event::time;	3195	$NOW = $tick_start = Event::time;
2806		3196
2807	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
		3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3220	};
2808		3221
2809	$RUNTIME += $TICK;	3222	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2811		3224
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2818	}	3231	}
2819		3232
2820	# my $AFTER = Event::time;	3233	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#	3234	# warn $AFTER - $NOW;#d#
2822		3235
		3236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3237	$sig->send;
		3238	}
		3239	while (my $sig = shift @WAIT_FOR_TICK) {
		3240	$sig->send;
		3241	}
		3242
		3243	$NOW = Event::time;
		3244
2823	# if we are delayed by four ticks or more, skip them all	3245	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3246	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2825		3247
2826	$TICK_WATCHER->at ($NEXT_TICK);	3248	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;	3249	$TICK_WATCHER->start;
2828		3250
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3251	$LOAD = ($NOW - $tick_start) / $TICK;
2830	$sig->send;	3252	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2831	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;
2834	}
2835		3253
2836	_post_tick;	3254	_post_tick;
		3255
		3256
2837	},	3257	},
2838	);	3258	);
2839		3259
2840	{	3260	{
2841	BDB::max_poll_time $TICK * 0.1;	3261	BDB::max_poll_time $TICK * 0.1;
…		…
2869		3289
2870	cf::sync_job {	3290	cf::sync_job {
2871	eval {	3291	eval {
2872	BDB::db_env_open	3292	BDB::db_env_open
2873	$DB_ENV,	3293	$DB_ENV,
2874	$BDB_ENV_DIR,	3294	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3297	0666;
2878		3298
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880		3300
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;	3302	$DB_ENV->set_lk_detect;
2883	};	3303	};
2884		3304
…		…
2900	prio => 6,	3320	prio => 6,
2901	cb => \&IO::AIO::poll_cb,	3321	cb => \&IO::AIO::poll_cb,
2902	);	3322	);
2903	}	3323	}
2904		3324
		3325	my $_log_backtrace;
		3326
		3327	sub _log_backtrace {
		3328	my ($msg, @addr) = @_;
		3329
		3330	$msg =~ s/\n//;
		3331
		3332	# limit the # of concurrent backtraces
		3333	if ($_log_backtrace < 2) {
		3334	++$_log_backtrace;
		3335	async {
		3336	my @bt = fork_call {
		3337	@addr = map { sprintf "%x", $_ } @addr;
		3338	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3339	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3340	or die "addr2line: $!";
		3341
		3342	my @funcs;
		3343	my @res = <$fh>;
		3344	chomp for @res;
		3345	while (@res) {
		3346	my ($func, $line) = splice @res, 0, 2, ();
		3347	push @funcs, "[$func] $line";
		3348	}
		3349
		3350	@funcs
		3351	};
		3352
		3353	LOG llevInfo, "[ABT] $msg\n";
		3354	LOG llevInfo, "[ABT] $_\n" for @bt;
		3355	--$_log_backtrace;
		3356	};
		3357	} else {
		3358	LOG llevInfo, "[ABT] $msg\n";
		3359	LOG llevInfo, "[ABT] [suppressed]\n";
		3360	}
		3361	}
		3362
2905	# load additional modules	3363	# load additional modules
2906	use cf::pod;	3364	use cf::pod;
2907		3365
2908	END { cf::emergency_save }	3366	END { cf::emergency_save }
2909		3367

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