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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 1.310 by elmex, Mon Jul 16 15:43:49 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
…		…
818	or return;	1030	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1032	}
821		1033
822	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1036	return ($data, $av);
825	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
826		1044
827	#############################################################################	1045	#############################################################################
828	# command handling &c	1046	# command handling &c
829		1047
830	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1062	}
845		1063
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1065
848	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
849		1071
850	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
851	called.	1073	called.
852		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
853	=cut	1086	=cut
854		1087
855	sub register_extcmd {	1088	sub register_extcmd {
856	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
857		1090
858	$EXTCMD{$name} = $cb;	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
859	}	1098	}
860		1099
861	cf::player->attach (	1100	cf::player->attach (
862	on_command => sub {	1101	on_command => sub {
863	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1111	cf::override;
873	},	1112	},
874	on_extcmd => sub {	1113	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
876		1115
877	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1117
879	if (ref $msg) {	1118	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1127
889	cf::override;	1128	cf::override;
890	},	1129	},
891	);	1130	);
892		1131
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 {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
928	for my $ext (<$LIBDIR/*.ext>) {	1136	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1137	next unless -r $path;
930	eval {	1138
931	load_extension $ext;	1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
932	1	1196	}
933	} or warn "$ext not loaded: $@";	1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
934	}	1202	};
935	}	1203	}
936		1204
937	#############################################################################	1205	#############################################################################
938		1206
		1207	=back
		1208
939	=head2 CORE EXTENSIONS	1209	=head2 CORE EXTENSIONS
940		1210
941	Functions and methods that extend core crossfire objects.	1211	Functions and methods that extend core crossfire objects.
942		1212
943	=cut	1213	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1225	Returns the given player object, loading it if necessary (might block).
956		1226
957	=cut	1227	=cut
958		1228
959	sub playerdir($) {	1229	sub playerdir($) {
960	cf::localdir	1230	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1232	}
966		1233
967	sub path($) {	1234	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1355	while and may block, so not sync_job-capable, ever.
1089		1356
1090	=cut	1357	=cut
1091		1358
1092	sub list_logins {	1359	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1360	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1361	or return [];
1095		1362
1096	my @logins;	1363	my @logins;
1097		1364
1098	for my $login (@$dirs) {	1365	for my $login (@$dirs) {
…		…
1133	}	1400	}
1134		1401
1135	\@paths	1402	\@paths
1136	}	1403	}
1137		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
1138	=item $player->ext_reply ($msgid, %msg)	1455	=item $player->ext_reply ($msgid, %msg)
1139		1456
1140	Sends an ext reply to the player.	1457	Sends an ext reply to the player.
1141		1458
1142	=cut	1459	=cut
1143		1460
1144	sub ext_reply($$%) {	1461	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1462	my ($self, $id, %msg) = @_;
1146		1463
1147	$msg{msgid} = $id;	1464	$msg{msgid} = $id;
1148		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1466	}
1151		1467
1152	=item $player->ext_event ($type, %msg)	1468	=item $player->ext_event ($type, %msg)
1153		1469
1154	Sends an ext event to the client.	1470	Sends an ext event to the client.
…		…
1169		1485
1170	package cf::region;	1486	package cf::region;
1171		1487
1172	=item cf::region::find_by_path $path	1488	=item cf::region::find_by_path $path
1173		1489
1174	Tries to decuce the probable region for a map knowing only its path.	1490	Tries to decuce the likely region for a map knowing only its path.
1175		1491
1176	=cut	1492	=cut
1177		1493
1178	sub find_by_path($) {	1494	sub find_by_path($) {
1179	my ($path) = @_;	1495	my ($path) = @_;
1180		1496
1181	my ($match, $specificity);	1497	my ($match, $specificity);
1182		1498
1183	for my $region (list) {	1499	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1500	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1501	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1502	if $region->specificity > $specificity;
1187	}	1503	}
1188	}	1504	}
1189		1505
…		…
1253	my ($self, $merge) = @_;	1569	my ($self, $merge) = @_;
1254		1570
1255	# we have to keep some variables in memory intact	1571	# we have to keep some variables in memory intact
1256	local $self->{path};	1572	local $self->{path};
1257	local $self->{load_path};	1573	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1574
1261	$self->SUPER::thawer_merge ($merge);	1575	$self->SUPER::thawer_merge ($merge);
1262	}	1576	}
1263		1577
1264	sub normalise {	1578	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1625	$self->init; # pass $1 etc.
1312	return $self;	1626	return $self;
1313	}	1627	}
1314	}	1628	}
1315		1629
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1631	()
1318	}	1632	}
1319		1633
1320	sub init {	1634	sub init {
1321	my ($self) = @_;	1635	my ($self) = @_;
…		…
1336		1650
1337	# the original (read-only) location	1651	# the original (read-only) location
1338	sub load_path {	1652	sub load_path {
1339	my ($self) = @_;	1653	my ($self) = @_;
1340		1654
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1655	"$MAPDIR/$self->{path}.map"
1342	}	1656	}
1343		1657
1344	# the temporary/swap location	1658	# the temporary/swap location
1345	sub save_path {	1659	sub save_path {
1346	my ($self) = @_;	1660	my ($self) = @_;
1347		1661
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1663	"$TMPDIR/$path.map"
1350	}	1664	}
1351		1665
1352	# the unique path, undef == no special unique path	1666	# the unique path, undef == no special unique path
1353	sub uniq_path {	1667	sub uniq_path {
1354	my ($self) = @_;	1668	my ($self) = @_;
1355		1669
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1671	"$UNIQUEDIR/$path"
1358	}	1672	}
1359		1673
1360	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1361	# all maps in C++...	1675	# all maps in C++...
1362	sub change_all_map_light {	1676	sub change_all_map_light {
1363	my ($change) = @_;	1677	my ($change) = @_;
1364		1678
1365	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
		1681	}
		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
1367	}	1689	}
1368		1690
1369	sub unlink_save {	1691	sub unlink_save {
1370	my ($self) = @_;	1692	my ($self) = @_;
1371		1693
…		…
1429	$self->load_header_orig	1751	$self->load_header_orig
1430	or return;	1752	or return;
1431	$self->prepare_orig;	1753	$self->prepare_orig;
1432	}	1754	}
1433		1755
		1756	$self->{deny_reset} = 1
		1757	if $self->no_reset;
		1758
1434	$self->default_region (cf::region::find_by_path $self->{path})	1759	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1760	unless $self->default_region;
1436		1761
1437	1	1762	1
1438	}	1763	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1454		1779
1455	$map->load_header	1780	$map->load_header
1456	or return;	1781	or return;
1457		1782
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1784	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1785	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1786	$map->reset;
1462	undef $guard;	1787	undef $guard;
1463	return find $path;	1788	return find $path;
…		…
1474	my ($self) = @_;	1799	my ($self) = @_;
1475		1800
1476	local $self->{deny_reset} = 1; # loading can take a long time	1801	local $self->{deny_reset} = 1; # loading can take a long time
1477		1802
1478	my $path = $self->{path};	1803	my $path = $self->{path};
		1804
		1805	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1806	my $guard = cf::lock_acquire "map_load:$path";
1480		1807
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1808	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1809
1483	$self->in_memory (cf::MAP_LOADING);	1810	$self->in_memory (cf::MAP_LOADING);
1484		1811
1485	$self->alloc;	1812	$self->alloc;
1486		1813
1487	$self->pre_load;	1814	$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;	1815	Coro::cede;
1514	$self->set_darkness_map;	1816
		1817	$self->_load_objects ($self->{load_path}, 1)
		1818	or return;
		1819
		1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1821	if delete $self->{load_original};
		1822
		1823	if (my $uniq = $self->uniq_path) {
		1824	utf8::encode $uniq;
		1825	if (aio_open $uniq, O_RDONLY, 0) {
		1826	$self->clear_unique_items;
		1827	$self->_load_objects ($uniq, 0);
		1828	}
		1829	}
		1830
		1831	Coro::cede;
		1832	# now do the right thing for maps
		1833	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1834	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1835	unless $self->difficulty;
1517	Coro::cede;	1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1518	$self->activate;	1845	$self->activate;
1519	Coro::cede;	1846	}
		1847
		1848	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1849	}
1521		1850
1522	$self->post_load;	1851	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1852	}
1527		1853
1528	sub customise_for {	1854	sub customise_for {
1529	my ($self, $ob) = @_;	1855	my ($self, $ob) = @_;
1530		1856
1531	return find "~" . $ob->name . "/" . $self->{path}	1857	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
1533		1862
1534	$self	1863	$self
1535	}	1864	}
1536		1865
1537	# find and load all maps in the 3x3 area around a map	1866	# find and load all maps in the 3x3 area around a map
…		…
1584		1913
1585	undef $MAP_PREFETCH{$path};	1914	undef $MAP_PREFETCH{$path};
1586	$MAP_PREFETCHER ||= cf::async {	1915	$MAP_PREFETCHER ||= cf::async {
1587	while (%MAP_PREFETCH) {	1916	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	1917	for my $path (keys %MAP_PREFETCH) {
1589	my $map = find $path	1918	if (my $map = find $path) {
1590	or next;
1591	$map->load;	1919	$map->load;
		1920	}
1592		1921
1593	delete $MAP_PREFETCH{$path};	1922	delete $MAP_PREFETCH{$path};
1594	}	1923	}
1595	}	1924	}
1596	undef $MAP_PREFETCHER;	1925	undef $MAP_PREFETCHER;
…		…
1648		1977
1649	sub reset_at {	1978	sub reset_at {
1650	my ($self) = @_;	1979	my ($self) = @_;
1651		1980
1652	# TODO: safety, remove and allow resettable per-player maps	1981	# 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};	1982	return 1e99 if $self->{deny_reset};
1655		1983
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		1986
…		…
1669	my ($self) = @_;	1997	my ($self) = @_;
1670		1998
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2000
1673	return if $self->players;	2001	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2002
1676	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
1677		2004
1678	$self->in_memory (cf::MAP_SWAPPED);	2005	$self->in_memory (cf::MAP_SWAPPED);
1679		2006
1680	# need to save uniques path	2007	# need to save uniques path
1681	unless ($self->{deny_save}) {	2008	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	2040	$cf::MAP{$self->path} = $self;
1714		2041
1715	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1716	}	2043	}
1717		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
		2053	[
		2054	map {
		2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
		2061	}
		2062
		2063	=item $maps = cf::map::random_maps
		2064
		2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
		2067
		2068	=cut
		2069
		2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
1718	=item cf::map::unique_maps	2081	=item cf::map::unique_maps
1719		2082
1720	Returns an arrayref of paths of all shared maps that have	2083	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2084	instantiated unique items. May block.
1722		2085
1723	=cut	2086	=cut
1724		2087
1725	sub unique_maps() {	2088	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2089	[
1727	or return;	2090	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2091	utf8::decode $_;
1733	next if /\.pst$/;	2092	/\.map$/
1734	next unless /^$PATH_SEP/o;	2093	? normalise $_
1735		2094	: ()
1736	push @paths, cf::map::normalise $_;	2095	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2096	]
1738
1739	\@paths
1740	}	2097	}
1741		2098
1742	package cf;	2099	package cf;
1743		2100
1744	=back	2101	=back
…		…
1790		2147
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2149
1793	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1795	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1798	}	2169	}
1799	}	2170	}
1800		2171
1801	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1802		2173
…		…
1850	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1851		2222
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2224
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1856		2227
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2229	}
1859		2230
1860	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1862		2235
1863	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1864		2237
1865	unless ($map) {	2238	unless ($map) {
1866	# restore original map position	2239	# restore original map position
…		…
1889		2262
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1892	}	2265	}
1893		2266
1894	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2268
1898	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1902	};	2273	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2274
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	2275	=cut
		2276
		2277	our $GOTOGEN;
1929		2278
1930	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2284
1933	$self->enter_link;	2285	$self->enter_link;
1934		2286
1935	(async {	2287	(async {
1936	my $map = eval {	2288	my $map = eval {
1937	my $map = cf::map::find $path;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
		2293	$map = $check->($map) if $check && $map;
		2294	} else {
		2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
		2297
1939	$map	2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2304	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1944	})->prio (1);	2312	})->prio (1);
1945	}	2313	}
1946		2314
1947	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1948		2316
…		…
1987		2355
1988	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1989		2357
1990	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2360	my $meta = "$RANDOMDIR/$md5.meta";
1993		2361
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2364	undef $fh;
1997	aio_rename "$meta~", $meta;	2365	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2385	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2386	my $sp = $exit->stats->sp;
2019		2387
2020	$self->enter_link;	2388	$self->enter_link;
		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
2021		2393
2022	(async {	2394	(async {
2023	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2396	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2397	$self->goto ($slaying, $hp, $sp);
…		…
2053		2425
2054	utf8::encode $text;	2426	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2428	}
2057		2429
		2430	=item $client->send_msg ($color, $type, $msg, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $color, $type, $msg, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	if ($self->can_msg) {
		2447	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2448	} else {
		2449	# replace some tags by gcfclient-compatible ones
		2450	for ($msg) {
		2451	1 while
		2452	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2453	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2454	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2455	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2456	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2457	}
		2458
		2459	if ($color >= 0) {
		2460	if (0 && $msg =~ /\[/) {
		2461	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2462	} else {
		2463	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2464	$self->send_packet ("drawinfo $color $msg")
		2465	}
		2466	}
		2467	}
		2468	}
		2469
2058	=item $client->ext_event ($type, %msg)	2470	=item $client->ext_event ($type, %msg)
2059		2471
2060	Sends an exti event to the client.	2472	Sends an ext event to the client.
2061		2473
2062	=cut	2474	=cut
2063		2475
2064	sub cf::client::ext_event($$%) {	2476	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2477	my ($self, $type, %msg) = @_;
2066		2478
		2479	return unless $self->extcmd;
		2480
2067	$msg{msgtype} = "event_$type";	2481	$msg{msgtype} = "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2482	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2069	}	2483	}
2070		2484
2071	=item $success = $client->query ($flags, "text", \&cb)	2485	=item $success = $client->query ($flags, "text", \&cb)
2072		2486
2073	Queues a query to the client, calling the given callback with	2487	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>,	2488	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>.	2489	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2490
2077	Queries can fail, so check the return code. Or don't, as queries will become	2491	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2492	become reliable at some point in the future.
2079		2493
2080	=cut	2494	=cut
2081		2495
2082	sub cf::client::query {	2496	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2497	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2505	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2506	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2507
2094	$self->send_packet ($self->{query_queue}[0][0])	2508	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2509	if @{ $self->{query_queue} } == 1;
		2510
		2511	1
2096	}	2512	}
2097		2513
2098	cf::client->attach (	2514	cf::client->attach (
		2515	on_connect => sub {
		2516	my ($ns) = @_;
		2517
		2518	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2519	},
2099	on_reply => sub {	2520	on_reply => sub {
2100	my ($ns, $msg) = @_;	2521	my ($ns, $msg) = @_;
2101		2522
2102	# this weird shuffling is so that direct followup queries	2523	# this weird shuffling is so that direct followup queries
2103	# get handled first	2524	# get handled first
…		…
2115	} else {	2536	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2537	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2538	}
2118	}	2539	}
2119	},	2540	},
		2541	on_exticmd => sub {
		2542	my ($ns, $buf) = @_;
		2543
		2544	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2545
		2546	if (ref $msg) {
		2547	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2548	if (my %reply = $cb->($ns, $msg)) {
		2549	$reply{msgid} = $msg->{msgid};
		2550	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2551	}
		2552	}
		2553	} else {
		2554	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2555	}
		2556
		2557	cf::override;
		2558	},
2120	);	2559	);
2121		2560
2122	=item $client->async (\&cb)	2561	=item $client->async (\&cb)
2123		2562
2124	Create a new coroutine, running the specified callback. The coroutine will	2563	Create a new coroutine, running the specified callback. The coroutine will
…		…
2173		2612
2174	=pod	2613	=pod
2175		2614
2176	The following functions and methods are available within a safe environment:	2615	The following functions and methods are available within a safe environment:
2177		2616
2178	cf::object contr pay_amount pay_player map	2617	cf::object
		2618	contr pay_amount pay_player map x y force_find force_add
		2619	insert remove
		2620
2179	cf::object::player player	2621	cf::object::player
2180	cf::player peaceful	2622	player
2181	cf::map trigger	2623
		2624	cf::player
		2625	peaceful
		2626
		2627	cf::map
		2628	trigger
2182		2629
2183	=cut	2630	=cut
2184		2631
2185	for (	2632	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2633	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2634	insert remove)],
2187	["cf::object::player" => qw(player)],	2635	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2636	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2637	["cf::map" => qw(trigger)],
2190	) {	2638	) {
2191	no strict 'refs';	2639	no strict 'refs';
…		…
2262	=back	2710	=back
2263		2711
2264	=cut	2712	=cut
2265		2713
2266	#############################################################################	2714	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$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
2435	#############################################################################
2436	# the server's init and main functions	2715	# the server's init and main functions
2437		2716
2438	sub load_facedata($) {	2717	sub load_facedata($) {
2439	my ($path) = @_;	2718	my ($path) = @_;
2440		2719
…		…
2452	{	2731	{
2453	my $faces = $facedata->{faceinfo};	2732	my $faces = $facedata->{faceinfo};
2454		2733
2455	while (my ($face, $info) = each %$faces) {	2734	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2735	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2736	cf::face::set_visibility $idx, $info->{visibility};
		2737	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2738	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2739	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2460	Coro::cede;	2740
		2741	cf::cede_to_tick;
2461	}	2742	}
2462		2743
2463	while (my ($face, $info) = each %$faces) {	2744	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	2745	next unless $info->{smooth};
2465	my $idx = cf::face::find $face	2746	my $idx = cf::face::find $face
2466	or next;	2747	or next;
2467	if (my $smooth = cf::face::find $info->{smooth}) {	2748	if (my $smooth = cf::face::find $info->{smooth}) {
		2749	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2750	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	2751	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	2752	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	2753	}
2472	Coro::cede;	2754
		2755	cf::cede_to_tick;
2473	}	2756	}
2474	}	2757	}
2475		2758
2476	{	2759	{
2477	my $anims = $facedata->{animinfo};	2760	my $anims = $facedata->{animinfo};
2478		2761
2479	while (my ($anim, $info) = each %$anims) {	2762	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	2763	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	2764	cf::cede_to_tick;
2482	}	2765	}
2483		2766
2484	cf::anim::invalidate_all; # d'oh	2767	cf::anim::invalidate_all; # d'oh
2485	}	2768	}
2486		2769
		2770	{
		2771	# TODO: for gcfclient pleasure, we should give resources
		2772	# that gcfclient doesn't grok a >10000 face index.
		2773	my $res = $facedata->{resource};
		2774	my $enc = JSON::XS->new->utf8->canonical;
		2775
		2776	while (my ($name, $info) = each %$res) {
		2777	my $meta = $enc->encode ({
		2778	name => $name,
		2779	type => $info->{type},
		2780	copyright => $info->{copyright}, #TODO#
		2781	});
		2782
		2783	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2784
		2785	if ($name =~ /\.jpg$/) {
		2786	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2787	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2788	} else {
		2789	my $data = pack "(w/a*)*", $meta, $info->{data};
		2790	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2791
		2792	cf::face::set_type $idx, 1;
		2793	cf::face::set_data $idx, 0, $data, $chk;
		2794	}
		2795
		2796	cf::cede_to_tick;
		2797	}
		2798	}
		2799
2487	1	2800	1
2488	}	2801	}
2489		2802
		2803	sub reload_regions {
		2804	load_resource_file "$MAPDIR/regions"
		2805	or die "unable to load regions file\n";
		2806
		2807	for (cf::region::list) {
		2808	$_->{match} = qr/$_->{match}/
		2809	if exists $_->{match};
		2810	}
		2811	}
		2812
2490	sub reload_facedata {	2813	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	2814	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	2815	or die "unable to load facedata\n";
2493	}	2816	}
2494		2817
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 {	2818	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	2819	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	2820	or die "unable to load archetypes\n";
		2821	#d# NEED to laod twice to resolve forward references
		2822	# this really needs to be done in an extra post-pass
		2823	# (which needs to be synchronous, so solve it differently)
		2824	load_resource_file "$DATADIR/archetypes"
		2825	or die "unable to load archetypes\n";
2503	}	2826	}
2504		2827
2505	sub reload_treasures {	2828	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	2829	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	2830	or die "unable to load treasurelists\n";
2508	}	2831	}
2509		2832
2510	sub reload_resources {	2833	sub reload_resources {
2511	warn "reloading resource files...\n";	2834	warn "reloading resource files...\n";
2512		2835
2513	reload_regions;	2836	reload_regions;
2514	reload_facedata;	2837	reload_facedata;
		2838	#reload_archetypes;#d#
2515	reload_archetypes;	2839	reload_archetypes;
2516	reload_treasures;	2840	reload_treasures;
2517		2841
2518	warn "finished reloading resource files\n";	2842	warn "finished reloading resource files\n";
2519	}	2843	}
…		…
2521	sub init {	2845	sub init {
2522	reload_resources;	2846	reload_resources;
2523	}	2847	}
2524		2848
2525	sub cfg_load {	2849	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	2850	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	2851	or return;
2528		2852
2529	local $/;	2853	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	2854	*CFG = YAML::Syck::Load <$fh>;
2531		2855
…		…
2576	},	2900	},
2577	);	2901	);
2578	}	2902	}
2579	}	2903	}
2580		2904
		2905	sub write_runtime {
		2906	my $runtime = "$LOCALDIR/runtime";
		2907
		2908	# first touch the runtime file to show we are still running:
		2909	# the fsync below can take a very very long time.
		2910
		2911	IO::AIO::aio_utime $runtime, undef, undef;
		2912
		2913	my $guard = cf::lock_acquire "write_runtime";
		2914
		2915	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2916	or return;
		2917
		2918	my $value = $cf::RUNTIME + 90 + 10;
		2919	# 10 is the runtime save interval, for a monotonic clock
		2920	# 60 allows for the watchdog to kill the server.
		2921
		2922	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2923	and return;
		2924
		2925	# always fsync - this file is important
		2926	aio_fsync $fh
		2927	and return;
		2928
		2929	# touch it again to show we are up-to-date
		2930	aio_utime $fh, undef, undef;
		2931
		2932	close $fh
		2933	or return;
		2934
		2935	aio_rename "$runtime~", $runtime
		2936	and return;
		2937
		2938	warn "runtime file written.\n";
		2939
		2940	1
		2941	}
		2942
2581	sub emergency_save() {	2943	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	2944	my $freeze_guard = cf::freeze_mainloop;
2583		2945
2584	warn "enter emergency perl save\n";	2946	warn "enter emergency perl save\n";
2585		2947
…		…
2660	%EXT_CORO = ();	3022	%EXT_CORO = ();
2661		3023
2662	warn "removing commands";	3024	warn "removing commands";
2663	%COMMAND = ();	3025	%COMMAND = ();
2664		3026
2665	warn "removing ext commands";	3027	warn "removing ext/exti commands";
2666	%EXTCMD = ();	3028	%EXTCMD = ();
		3029	%EXTICMD = ();
2667		3030
2668	warn "unloading/nuking all extensions";	3031	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	3032	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	3033	warn "... unloading $pkg";
2671		3034
…		…
2789	my $signal = new Coro::Signal;	3152	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3153	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3154	$signal->wait;
2792	}	3155	}
2793		3156
		3157	my $min = 1e6;#d#
		3158	my $avg = 10;
2794	$TICK_WATCHER = Event->timer (	3159	$TICK_WATCHER = Event->timer (
2795	reentrant => 0,	3160	reentrant => 0,
2796	parked => 1,	3161	parked => 1,
2797	prio => 0,	3162	prio => 0,
2798	at => $NEXT_TICK || $TICK,	3163	at => $NEXT_TICK || $TICK,
…		…
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3167	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3168	unless ++$bug_warning > 10;
2804	return;	3169	return;
2805	}	3170	}
2806		3171
2807	$NOW = Event::time;	3172	$NOW = $tick_start = Event::time;
2808		3173
2809	cf::server_tick; # one server iteration	3174	cf::server_tick; # one server iteration
		3175
		3176	0 && sync_job {#d#
		3177	for(1..10) {
		3178	my $t = Event::time;
		3179	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3180	or die;
		3181
		3182	$map->width (50);
		3183	$map->height (50);
		3184	$map->alloc;
		3185	$map->_load_objects ("/tmp/x.map", 1);
		3186	my $t = Event::time - $t;
		3187
		3188	#next unless $t < 0.0013;#d#
		3189	if ($t < $min) {
		3190	$min = $t;
		3191	}
		3192	$avg = $avg * 0.99 + $t * 0.01;
		3193	}
		3194	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3195	exit 0;
		3196	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3197	};
2810		3198
2811	$RUNTIME += $TICK;	3199	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;	3200	$NEXT_TICK += $TICK;
2813		3201
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3202	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2820	}	3208	}
2821		3209
2822	# my $AFTER = Event::time;	3210	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#	3211	# warn $AFTER - $NOW;#d#
2824		3212
		3213	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3214	$sig->send;
		3215	}
		3216	while (my $sig = shift @WAIT_FOR_TICK) {
		3217	$sig->send;
		3218	}
		3219
		3220	$NOW = Event::time;
		3221
2825	# if we are delayed by four ticks or more, skip them all	3222	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3223	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2827		3224
2828	$TICK_WATCHER->at ($NEXT_TICK);	3225	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;	3226	$TICK_WATCHER->start;
2830		3227
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3228	$LOAD = ($NOW - $tick_start) / $TICK;
2832	$sig->send;	3229	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2833	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;
2836	}
2837		3230
2838	_post_tick;	3231	_post_tick;
		3232
		3233
2839	},	3234	},
2840	);	3235	);
2841		3236
2842	{	3237	{
2843	BDB::max_poll_time $TICK * 0.1;	3238	BDB::max_poll_time $TICK * 0.1;
…		…
2871		3266
2872	cf::sync_job {	3267	cf::sync_job {
2873	eval {	3268	eval {
2874	BDB::db_env_open	3269	BDB::db_env_open
2875	$DB_ENV,	3270	$DB_ENV,
2876	$BDB_ENV_DIR,	3271	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3272	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3273	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3274	0666;
2880		3275
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3276	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882		3277
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3278	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;	3279	$DB_ENV->set_lk_detect;
2885	};	3280	};
2886		3281
…		…
2902	prio => 6,	3297	prio => 6,
2903	cb => \&IO::AIO::poll_cb,	3298	cb => \&IO::AIO::poll_cb,
2904	);	3299	);
2905	}	3300	}
2906		3301
		3302	my $_log_backtrace;
		3303
		3304	sub _log_backtrace {
		3305	my ($msg, @addr) = @_;
		3306
		3307	$msg =~ s/\n//;
		3308
		3309	# limit the # of concurrent backtraces
		3310	if ($_log_backtrace < 2) {
		3311	++$_log_backtrace;
		3312	async {
		3313	my @bt = fork_call {
		3314	@addr = map { sprintf "%x", $_ } @addr;
		3315	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3316	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3317	or die "addr2line: $!";
		3318
		3319	my @funcs;
		3320	my @res = <$fh>;
		3321	chomp for @res;
		3322	while (@res) {
		3323	my ($func, $line) = splice @res, 0, 2, ();
		3324	push @funcs, "[$func] $line";
		3325	}
		3326
		3327	@funcs
		3328	};
		3329
		3330	LOG llevInfo, "[ABT] $msg\n";
		3331	LOG llevInfo, "[ABT] $_\n" for @bt;
		3332	--$_log_backtrace;
		3333	};
		3334	} else {
		3335	LOG llevInfo, "[ABT] $msg\n";
		3336	LOG llevInfo, "[ABT] [suppressed]\n";
		3337	}
		3338	}
		3339
2907	# load additional modules	3340	# load additional modules
2908	use cf::pod;	3341	use cf::pod;
2909		3342
2910	END { cf::emergency_save }	3343	END { cf::emergency_save }
2911		3344

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