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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 1.315 by root, Mon Jul 23 17:53:55 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
…		…
272	};	322	};
273	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
274	$guard	324	$guard
275	}	325	}
276		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
277	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
278		384
279	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
281	thing you are allowed to do is call C<prio> on it.	387	thing you are allowed to do is call C<prio> on it.
…		…
284		390
285	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
286		392
287	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
288		394
289	The design of crossfire+ requires that the main coro ($Coro::main) is	395	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	396	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.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
292		399
293	If it must be done, put the blocking parts into C<sync_job>. This will run	400	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	401	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	402	server will be frozen during this time, so the block should either finish
296	fast or be very important.	403	fast or be very important.
…		…
299		406
300	sub sync_job(&) {	407	sub sync_job(&) {
301	my ($job) = @_;	408	my ($job) = @_;
302		409
303	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
304	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
306		415
307	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
319		428
320	while ($busy) {	429	while ($busy) {
321	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
322	}	431	}
323		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
324	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
325	} else {	441	} else {
326	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
327		443
328	$job->()	444	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
348		464
349	$coro	465	$coro
350	}	466	}
351		467
352	sub write_runtime {	468	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		469
355	my $runtime = cf::localdir . "/runtime";	470	Executes the given code block with the given arguments in a seperate
		471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
356		474
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	475	=cut
358	or return;
359		476
360	my $value = $cf::RUNTIME + 90 + 10;	477	sub _store_scalar {
361	# 10 is the runtime save interval, for a monotonic clock	478	open my $fh, ">", \my $buf
362	# 60 allows for the watchdog to kill the server.	479	or die "fork_call: cannot open fh-to-buf in child : $!";
363		480	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	481	close $fh;
372	or return;
373		482
374	aio_rename "$runtime~", $runtime	483	$buf
375	and return;	484	}
376		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
377	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
378	}	644	}
379		645
380	=item cf::datalog type => key => value, ...	646	=item cf::datalog type => key => value, ...
381		647
382	Log a datalog packet of the given type with the given key-value pairs.	648	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")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
402		668
403	In the following description, CLASS can be any of C<global>, C<object>	669	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	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	671	Crossfire TRT).
406		672
407	=over 4	673	=over 4
408		674
409	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
410		676
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
574		840
575	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		845
580	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	847	my $pkg = shift @arg;
582		848
583	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
613	}	879	}
614		880
615	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
616	} else {	882	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	884	}
619		885
620	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
621	}	887	}
622		888
…		…
624	if (ref $_[0]) {	890	if (ref $_[0]) {
625	_object_attach @_;	891	_object_attach @_;
626	} else {	892	} else {
627	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
628	}	894	}
		895	_recalc_want;
629	};	896	};
630		897
631	# all those should be optimised	898	# all those should be optimised
632	sub cf::attachable::detach {	899	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
637	reattach ($obj);	904	reattach ($obj);
638	} else {	905	} else {
639	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
640	}	907	}
		908	_recalc_want;
641	};	909	};
642		910
643	sub cf::attachable::attached {	911	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
645		913
…		…
660	";	928	";
661	die if $@;	929	die if $@;
662	}	930	}
663		931
664	our $override;	932	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		934
667	sub override {	935	sub override {
668	$override = 1;	936	$override = 1;
669	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
670	}	938	}
671		939
672	sub do_invoke {	940	sub do_invoke {
673	my $event = shift;	941	my $event = shift;
674	my $callbacks = shift;	942	my $callbacks = shift;
675		943
676	@invoke_results = ();	944	@INVOKE_RESULTS = ();
677		945
678	local $override;	946	local $override;
679		947
680	for (@$callbacks) {	948	for (@$callbacks) {
681	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
698		966
699	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
700		968
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		972
705	=back	973	=back
706		974
707	=cut	975	=cut
708		976
709	#############################################################################	977	#############################################################################
710	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
711		990
712	sub reattach {	991	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	993	my ($obj) = @_;
715		994
…		…
818	or return;	1097	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1099	}
821		1100
822	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1103	return ($data, $av);
825	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
826		1111
827	#############################################################################	1112	#############################################################################
828	# command handling &c	1113	# command handling &c
829		1114
830	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1129	}
845		1130
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1132
848	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
849		1138
850	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
851	called.	1140	called.
852		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
853	=cut	1153	=cut
854		1154
855	sub register_extcmd {	1155	sub register_extcmd {
856	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
857		1157
858	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
859	}	1165	}
860		1166
861	cf::player->attach (	1167	cf::player->attach (
862	on_command => sub {	1168	on_command => sub {
863	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1178	cf::override;
873	},	1179	},
874	on_extcmd => sub {	1180	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
876		1182
877	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1184
879	if (ref $msg) {	1185	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1186	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1187	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1188	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1194
889	cf::override;	1195	cf::override;
890	},	1196	},
891	);	1197	);
892		1198
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 {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
928	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1204	next unless -r $path;
930	eval {	1205
931	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
932	1	1263	}
933	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
934	}	1269	};
935	}	1270	}
936		1271
937	#############################################################################	1272	#############################################################################
938		1273
		1274	=back
		1275
939	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
940		1277
941	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
942		1279
943	=cut	1280	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1292	Returns the given player object, loading it if necessary (might block).
956		1293
957	=cut	1294	=cut
958		1295
959	sub playerdir($) {	1296	sub playerdir($) {
960	cf::localdir	1297	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1298	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1299	}
966		1300
967	sub path($) {	1301	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1302	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1422	while and may block, so not sync_job-capable, ever.
1089		1423
1090	=cut	1424	=cut
1091		1425
1092	sub list_logins {	1426	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1427	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1428	or return [];
1095		1429
1096	my @logins;	1430	my @logins;
1097		1431
1098	for my $login (@$dirs) {	1432	for my $login (@$dirs) {
…		…
1133	}	1467	}
1134		1468
1135	\@paths	1469	\@paths
1136	}	1470	}
1137		1471
		1472	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1473
		1474	Expand crossfire pod fragments into protocol xml.
		1475
		1476	=cut
		1477
		1478	sub expand_cfpod {
		1479	((my $self), (local $_)) = @_;
		1480
		1481	# escape & and <
		1482	s/&/&amp;/g;
		1483	s/(?<![BIUGH])</&lt;/g;
		1484
		1485	# this is buggy, it needs to properly take care of nested <'s
		1486
		1487	1 while
		1488	# replace B<>, I<>, U<> etc.
		1489	s/B<([^\>]*)>/<b>$1<\/b>/
		1490	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1491	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1492	# replace G<male|female> tags
		1493	|| s{G<([^>|]*)\|([^>]*)>}{
		1494	$self->gender ? $2 : $1
		1495	}ge
		1496	# replace H<hint text>
		1497	|| s{H<([^\>]*)>}
		1498	{
		1499	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1500	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1501	"")
		1502	[$self->{hintmode}]
		1503	}ge;
		1504
		1505	# create single paragraphs (very hackish)
		1506	s/(?<=\S)\n(?=\w)/ /g;
		1507
		1508	# compress some whitespace
		1509	s/\s+\n/\n/g; # ws line-ends
		1510	s/\n\n+/\n/g; # double lines
		1511	s/^\n+//; # beginning lines
		1512	s/\n+$//; # ending lines
		1513
		1514	$_
		1515	}
		1516
		1517	sub hintmode {
		1518	$_[0]{hintmode} = $_[1] if @_ > 1;
		1519	$_[0]{hintmode}
		1520	}
		1521
1138	=item $player->ext_reply ($msgid, %msg)	1522	=item $player->ext_reply ($msgid, %msg)
1139		1523
1140	Sends an ext reply to the player.	1524	Sends an ext reply to the player.
1141		1525
1142	=cut	1526	=cut
1143		1527
1144	sub ext_reply($$%) {	1528	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1529	my ($self, $id, %msg) = @_;
1146		1530
1147	$msg{msgid} = $id;	1531	$msg{msgid} = $id;
1148		1532	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1533	}
1151		1534
1152	=item $player->ext_event ($type, %msg)	1535	=item $player->ext_event ($type, %msg)
1153		1536
1154	Sends an ext event to the client.	1537	Sends an ext event to the client.
…		…
1169		1552
1170	package cf::region;	1553	package cf::region;
1171		1554
1172	=item cf::region::find_by_path $path	1555	=item cf::region::find_by_path $path
1173		1556
1174	Tries to decuce the probable region for a map knowing only its path.	1557	Tries to decuce the likely region for a map knowing only its path.
1175		1558
1176	=cut	1559	=cut
1177		1560
1178	sub find_by_path($) {	1561	sub find_by_path($) {
1179	my ($path) = @_;	1562	my ($path) = @_;
1180		1563
1181	my ($match, $specificity);	1564	my ($match, $specificity);
1182		1565
1183	for my $region (list) {	1566	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1567	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1568	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1569	if $region->specificity > $specificity;
1187	}	1570	}
1188	}	1571	}
1189		1572
…		…
1253	my ($self, $merge) = @_;	1636	my ($self, $merge) = @_;
1254		1637
1255	# we have to keep some variables in memory intact	1638	# we have to keep some variables in memory intact
1256	local $self->{path};	1639	local $self->{path};
1257	local $self->{load_path};	1640	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1641
1261	$self->SUPER::thawer_merge ($merge);	1642	$self->SUPER::thawer_merge ($merge);
1262	}	1643	}
1263		1644
1264	sub normalise {	1645	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1692	$self->init; # pass $1 etc.
1312	return $self;	1693	return $self;
1313	}	1694	}
1314	}	1695	}
1315		1696
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1697	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1698	()
1318	}	1699	}
1319		1700
1320	sub init {	1701	sub init {
1321	my ($self) = @_;	1702	my ($self) = @_;
…		…
1336		1717
1337	# the original (read-only) location	1718	# the original (read-only) location
1338	sub load_path {	1719	sub load_path {
1339	my ($self) = @_;	1720	my ($self) = @_;
1340		1721
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1722	"$MAPDIR/$self->{path}.map"
1342	}	1723	}
1343		1724
1344	# the temporary/swap location	1725	# the temporary/swap location
1345	sub save_path {	1726	sub save_path {
1346	my ($self) = @_;	1727	my ($self) = @_;
1347		1728
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1729	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1730	"$TMPDIR/$path.map"
1350	}	1731	}
1351		1732
1352	# the unique path, undef == no special unique path	1733	# the unique path, undef == no special unique path
1353	sub uniq_path {	1734	sub uniq_path {
1354	my ($self) = @_;	1735	my ($self) = @_;
1355		1736
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1737	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1738	"$UNIQUEDIR/$path"
1358	}	1739	}
1359		1740
1360	# and all this just because we cannot iterate over	1741	# and all this just because we cannot iterate over
1361	# all maps in C++...	1742	# all maps in C++...
1362	sub change_all_map_light {	1743	sub change_all_map_light {
1363	my ($change) = @_;	1744	my ($change) = @_;
1364		1745
1365	$_->change_map_light ($change)	1746	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1747	for grep $_->outdoor, values %cf::MAP;
		1748	}
		1749
		1750	sub decay_objects {
		1751	my ($self) = @_;
		1752
		1753	return if $self->{deny_reset};
		1754
		1755	$self->do_decay_objects;
1367	}	1756	}
1368		1757
1369	sub unlink_save {	1758	sub unlink_save {
1370	my ($self) = @_;	1759	my ($self) = @_;
1371		1760
…		…
1429	$self->load_header_orig	1818	$self->load_header_orig
1430	or return;	1819	or return;
1431	$self->prepare_orig;	1820	$self->prepare_orig;
1432	}	1821	}
1433		1822
		1823	$self->{deny_reset} = 1
		1824	if $self->no_reset;
		1825
1434	$self->default_region (cf::region::find_by_path $self->{path})	1826	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1827	unless $self->default_region;
1436		1828
1437	1	1829	1
1438	}	1830	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1845	$map->{last_save} = $cf::RUNTIME;
1454		1846
1455	$map->load_header	1847	$map->load_header
1456	or return;	1848	or return;
1457		1849
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1850	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1851	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1852	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1853	$map->reset;
1462	undef $guard;	1854	undef $guard;
1463	return find $path;	1855	return find $path;
…		…
1474	my ($self) = @_;	1866	my ($self) = @_;
1475		1867
1476	local $self->{deny_reset} = 1; # loading can take a long time	1868	local $self->{deny_reset} = 1; # loading can take a long time
1477		1869
1478	my $path = $self->{path};	1870	my $path = $self->{path};
		1871
		1872	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1873	my $guard = cf::lock_acquire "map_load:$path";
1480		1874
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1875	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1876
1483	$self->in_memory (cf::MAP_LOADING);	1877	$self->in_memory (cf::MAP_LOADING);
1484		1878
1485	$self->alloc;	1879	$self->alloc;
1486		1880
1487	$self->pre_load;	1881	$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;	1882	Coro::cede;
1514	$self->set_darkness_map;	1883
		1884	$self->_load_objects ($self->{load_path}, 1)
		1885	or return;
		1886
		1887	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1888	if delete $self->{load_original};
		1889
		1890	if (my $uniq = $self->uniq_path) {
		1891	utf8::encode $uniq;
		1892	if (aio_open $uniq, O_RDONLY, 0) {
		1893	$self->clear_unique_items;
		1894	$self->_load_objects ($uniq, 0);
		1895	}
		1896	}
		1897
		1898	Coro::cede;
		1899	# now do the right thing for maps
		1900	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1901	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1902	unless $self->difficulty;
1517	Coro::cede;	1903	Coro::cede;
		1904
		1905	unless ($self->{deny_activate}) {
		1906	$self->decay_objects;
		1907	$self->fix_auto_apply;
		1908	$self->update_buttons;
		1909	Coro::cede;
		1910	$self->set_darkness_map;
		1911	Coro::cede;
1518	$self->activate;	1912	$self->activate;
1519	Coro::cede;	1913	}
		1914
		1915	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1916	}
1521		1917
1522	$self->post_load;	1918	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1919	}
1527		1920
1528	sub customise_for {	1921	sub customise_for {
1529	my ($self, $ob) = @_;	1922	my ($self, $ob) = @_;
1530		1923
1531	return find "~" . $ob->name . "/" . $self->{path}	1924	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1925	if $self->per_player;
		1926
		1927	# return find "?party/" . $ob->name . "/" . $self->{path}
		1928	# if $self->per_party;
1533		1929
1534	$self	1930	$self
1535	}	1931	}
1536		1932
1537	# find and load all maps in the 3x3 area around a map	1933	# find and load all maps in the 3x3 area around a map
…		…
1584		1980
1585	undef $MAP_PREFETCH{$path};	1981	undef $MAP_PREFETCH{$path};
1586	$MAP_PREFETCHER ||= cf::async {	1982	$MAP_PREFETCHER ||= cf::async {
1587	while (%MAP_PREFETCH) {	1983	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	1984	for my $path (keys %MAP_PREFETCH) {
1589	my $map = find $path	1985	if (my $map = find $path) {
1590	or next;
1591	$map->load;	1986	$map->load;
		1987	}
1592		1988
1593	delete $MAP_PREFETCH{$path};	1989	delete $MAP_PREFETCH{$path};
1594	}	1990	}
1595	}	1991	}
1596	undef $MAP_PREFETCHER;	1992	undef $MAP_PREFETCHER;
…		…
1648		2044
1649	sub reset_at {	2045	sub reset_at {
1650	my ($self) = @_;	2046	my ($self) = @_;
1651		2047
1652	# TODO: safety, remove and allow resettable per-player maps	2048	# 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};	2049	return 1e99 if $self->{deny_reset};
1655		2050
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2053
…		…
1669	my ($self) = @_;	2064	my ($self) = @_;
1670		2065
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2067
1673	return if $self->players;	2068	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2069
1676	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
1677		2071
1678	$self->in_memory (cf::MAP_SWAPPED);	2072	$self->in_memory (cf::MAP_SWAPPED);
1679		2073
1680	# need to save uniques path	2074	# need to save uniques path
1681	unless ($self->{deny_save}) {	2075	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	2107	$cf::MAP{$self->path} = $self;
1714		2108
1715	$self->reset; # polite request, might not happen	2109	$self->reset; # polite request, might not happen
1716	}	2110	}
1717		2111
		2112	=item $maps = cf::map::tmp_maps
		2113
		2114	Returns an arrayref with all map paths of currently instantiated and saved
		2115	maps. May block.
		2116
		2117	=cut
		2118
		2119	sub tmp_maps() {
		2120	[
		2121	map {
		2122	utf8::decode $_;
		2123	/\.map$/
		2124	? normalise $_
		2125	: ()
		2126	} @{ aio_readdir $TMPDIR or [] }
		2127	]
		2128	}
		2129
		2130	=item $maps = cf::map::random_maps
		2131
		2132	Returns an arrayref with all map paths of currently instantiated and saved
		2133	random maps. May block.
		2134
		2135	=cut
		2136
		2137	sub random_maps() {
		2138	[
		2139	map {
		2140	utf8::decode $_;
		2141	/\.map$/
		2142	? normalise "?random/$_"
		2143	: ()
		2144	} @{ aio_readdir $RANDOMDIR or [] }
		2145	]
		2146	}
		2147
1718	=item cf::map::unique_maps	2148	=item cf::map::unique_maps
1719		2149
1720	Returns an arrayref of paths of all shared maps that have	2150	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2151	instantiated unique items. May block.
1722		2152
1723	=cut	2153	=cut
1724		2154
1725	sub unique_maps() {	2155	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2156	[
1727	or return;	2157	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2158	utf8::decode $_;
1733	next if /\.pst$/;	2159	/\.map$/
1734	next unless /^$PATH_SEP/o;	2160	? normalise $_
1735		2161	: ()
1736	push @paths, cf::map::normalise $_;	2162	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2163	]
1738
1739	\@paths
1740	}	2164	}
1741		2165
1742	package cf;	2166	package cf;
1743		2167
1744	=back	2168	=back
…		…
1790		2214
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2215	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2216
1793	if ($self->{record_replies}) {	2217	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2218	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2219
1795	} else {	2220	} else {
		2221	my $pl = $self->contr;
		2222
		2223	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2224	my $diag = $pl->{npc_dialog};
		2225	$diag->{pl}->ext_reply (
		2226	$diag->{id},
		2227	msgtype => "reply",
		2228	msg => $diag->{pl}->expand_cfpod ($msg),
		2229	add_topics => []
		2230	);
		2231
		2232	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2233	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2234	$self->message ($msg, $flags);
		2235	}
1798	}	2236	}
1799	}	2237	}
1800		2238
1801	=item $player_object->may ("access")	2239	=item $player_object->may ("access")
1802		2240
…		…
1850	$self->deactivate_recursive;	2288	$self->deactivate_recursive;
1851		2289
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2290	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2291
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2292	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2293	if $self->map && $self->map->{path} ne "{link}";
1856		2294
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2295	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2296	}
1859		2297
1860	sub cf::object::player::leave_link {	2298	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2299	my ($self, $map, $x, $y) = @_;
		2300
		2301	return unless $self->contr->active;
1862		2302
1863	my $link_pos = delete $self->{_link_pos};	2303	my $link_pos = delete $self->{_link_pos};
1864		2304
1865	unless ($map) {	2305	unless ($map) {
1866	# restore original map position	2306	# restore original map position
…		…
1889		2329
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2330	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2331	$self->enter_map ($map, $x, $y);
1892	}	2332	}
1893		2333
1894	cf::player->attach (	2334	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2335
1898	# abort map switching before logout	2336	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2337	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2338	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2339	the new (success) or old (failed) map position. In either case, $done will
1902	};	2340	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2341
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	2342	=cut
		2343
		2344	our $GOTOGEN;
1929		2345
1930	sub cf::object::player::goto {	2346	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2347	my ($self, $path, $x, $y, $check, $done) = @_;
		2348
		2349	# do generation counting so two concurrent goto's will be executed in-order
		2350	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2351
1933	$self->enter_link;	2352	$self->enter_link;
1934		2353
1935	(async {	2354	(async {
1936	my $map = eval {	2355	my $map = eval {
1937	my $map = cf::map::find $path;	2356	my $map = cf::map::find $path;
		2357
		2358	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2359	$map = $map->customise_for ($self);
		2360	$map = $check->($map) if $check && $map;
		2361	} else {
		2362	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2363	}
		2364
1939	$map	2365	$map
		2366	};
		2367
		2368	if ($@) {
		2369	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2370	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2371	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2372
		2373	if ($gen == $self->{_goto_generation}) {
		2374	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2375	$self->leave_link ($map, $x, $y);
		2376	}
		2377
		2378	$done->() if $done;
1944	})->prio (1);	2379	})->prio (1);
1945	}	2380	}
1946		2381
1947	=item $player_object->enter_exit ($exit_object)	2382	=item $player_object->enter_exit ($exit_object)
1948		2383
…		…
1987		2422
1988	$rmp->{random_seed} ||= $exit->random_seed;	2423	$rmp->{random_seed} ||= $exit->random_seed;
1989		2424
1990	my $data = cf::to_json $rmp;	2425	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2426	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2427	my $meta = "$RANDOMDIR/$md5.meta";
1993		2428
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2429	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2430	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2431	undef $fh;
1997	aio_rename "$meta~", $meta;	2432	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2451	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2452	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2453	my $sp = $exit->stats->sp;
2019		2454
2020	$self->enter_link;	2455	$self->enter_link;
		2456
		2457	# if exit is damned, update players death & WoR home-position
		2458	$self->contr->savebed ($slaying, $hp, $sp)
		2459	if $exit->flag (FLAG_DAMNED);
2021		2460
2022	(async {	2461	(async {
2023	$self->deactivate_recursive; # just to be sure	2462	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2463	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2464	$self->goto ($slaying, $hp, $sp);
…		…
2053		2492
2054	utf8::encode $text;	2493	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2494	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2495	}
2057		2496
		2497	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2498
		2499	Send a drawinfo or msg packet to the client, formatting the msg for the
		2500	client if neccessary. C<$type> should be a string identifying the type of
		2501	the message, with C<log> being the default. If C<$color> is negative, suppress
		2502	the message unless the client supports the msg packet.
		2503
		2504	=cut
		2505
		2506	sub cf::client::send_msg {
		2507	my ($self, $channel, $msg, $color, @extra) = @_;
		2508
		2509	$msg = $self->pl->expand_cfpod ($msg);
		2510
		2511	$color &= ~cf::NDI_UNIQUE; # just in case...
		2512
		2513	if (ref $channel) {
		2514	# send meta info to client, if not yet sent
		2515	unless (exists $self->{channel}{$channel->{id}}) {
		2516	$self->{channel}{$channel->{id}} = $channel;
		2517	$self->ext_event (channel_info => %$channel);
		2518	}
		2519
		2520	$channel = $channel->{id};
		2521	}
		2522
		2523	return unless @extra || length $msg;
		2524
		2525	if ($self->can_msg) {
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2527	} else {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	if ($color >= 0) {
		2539	if (0 && $msg =~ /\[/) {
		2540	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2541	} else {
		2542	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2543	$self->send_packet ("drawinfo $color $msg")
		2544	}
		2545	}
		2546	}
		2547	}
		2548
2058	=item $client->ext_event ($type, %msg)	2549	=item $client->ext_event ($type, %msg)
2059		2550
2060	Sends an exti event to the client.	2551	Sends an ext event to the client.
2061		2552
2062	=cut	2553	=cut
2063		2554
2064	sub cf::client::ext_event($$%) {	2555	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2556	my ($self, $type, %msg) = @_;
2066		2557
		2558	return unless $self->extcmd;
		2559
2067	$msg{msgtype} = "event_$type";	2560	$msg{msgtype} = "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2561	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2069	}	2562	}
2070		2563
2071	=item $success = $client->query ($flags, "text", \&cb)	2564	=item $success = $client->query ($flags, "text", \&cb)
2072		2565
2073	Queues a query to the client, calling the given callback with	2566	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>,	2567	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>.	2568	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2569
2077	Queries can fail, so check the return code. Or don't, as queries will become	2570	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2571	become reliable at some point in the future.
2079		2572
2080	=cut	2573	=cut
2081		2574
2082	sub cf::client::query {	2575	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2576	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2584	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2585	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2586
2094	$self->send_packet ($self->{query_queue}[0][0])	2587	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2588	if @{ $self->{query_queue} } == 1;
		2589
		2590	1
2096	}	2591	}
2097		2592
2098	cf::client->attach (	2593	cf::client->attach (
		2594	on_connect => sub {
		2595	my ($ns) = @_;
		2596
		2597	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2598	},
2099	on_reply => sub {	2599	on_reply => sub {
2100	my ($ns, $msg) = @_;	2600	my ($ns, $msg) = @_;
2101		2601
2102	# this weird shuffling is so that direct followup queries	2602	# this weird shuffling is so that direct followup queries
2103	# get handled first	2603	# get handled first
…		…
2115	} else {	2615	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2616	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2617	}
2118	}	2618	}
2119	},	2619	},
		2620	on_exticmd => sub {
		2621	my ($ns, $buf) = @_;
		2622
		2623	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2624
		2625	if (ref $msg) {
		2626	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2627	if (my %reply = $cb->($ns, $msg)) {
		2628	$reply{msgid} = $msg->{msgid};
		2629	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2630	}
		2631	}
		2632	} else {
		2633	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2634	}
		2635
		2636	cf::override;
		2637	},
2120	);	2638	);
2121		2639
2122	=item $client->async (\&cb)	2640	=item $client->async (\&cb)
2123		2641
2124	Create a new coroutine, running the specified callback. The coroutine will	2642	Create a new coroutine, running the specified callback. The coroutine will
…		…
2173		2691
2174	=pod	2692	=pod
2175		2693
2176	The following functions and methods are available within a safe environment:	2694	The following functions and methods are available within a safe environment:
2177		2695
2178	cf::object contr pay_amount pay_player map	2696	cf::object
		2697	contr pay_amount pay_player map x y force_find force_add
		2698	insert remove
		2699
2179	cf::object::player player	2700	cf::object::player
2180	cf::player peaceful	2701	player
2181	cf::map trigger	2702
		2703	cf::player
		2704	peaceful
		2705
		2706	cf::map
		2707	trigger
2182		2708
2183	=cut	2709	=cut
2184		2710
2185	for (	2711	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2712	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2713	insert remove)],
2187	["cf::object::player" => qw(player)],	2714	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2715	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2716	["cf::map" => qw(trigger)],
2190	) {	2717	) {
2191	no strict 'refs';	2718	no strict 'refs';
…		…
2262	=back	2789	=back
2263		2790
2264	=cut	2791	=cut
2265		2792
2266	#############################################################################	2793	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$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	2794	# the server's init and main functions
2436		2795
2437	sub load_facedata($) {	2796	sub load_facedata($) {
2438	my ($path) = @_;	2797	my ($path) = @_;
2439		2798
…		…
2451	{	2810	{
2452	my $faces = $facedata->{faceinfo};	2811	my $faces = $facedata->{faceinfo};
2453		2812
2454	while (my ($face, $info) = each %$faces) {	2813	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2814	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2815	cf::face::set_visibility $idx, $info->{visibility};
		2816	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2817	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2818	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2459	Coro::cede;	2819
		2820	cf::cede_to_tick;
2460	}	2821	}
2461		2822
2462	while (my ($face, $info) = each %$faces) {	2823	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	2824	next unless $info->{smooth};
2464	my $idx = cf::face::find $face	2825	my $idx = cf::face::find $face
2465	or next;	2826	or next;
2466	if (my $smooth = cf::face::find $info->{smooth}) {	2827	if (my $smooth = cf::face::find $info->{smooth}) {
		2828	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2829	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	2830	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	2831	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	2832	}
2471	Coro::cede;	2833
		2834	cf::cede_to_tick;
2472	}	2835	}
2473	}	2836	}
2474		2837
2475	{	2838	{
2476	my $anims = $facedata->{animinfo};	2839	my $anims = $facedata->{animinfo};
2477		2840
2478	while (my ($anim, $info) = each %$anims) {	2841	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	2842	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	2843	cf::cede_to_tick;
2481	}	2844	}
2482		2845
2483	cf::anim::invalidate_all; # d'oh	2846	cf::anim::invalidate_all; # d'oh
2484	}	2847	}
2485		2848
		2849	{
		2850	# TODO: for gcfclient pleasure, we should give resources
		2851	# that gcfclient doesn't grok a >10000 face index.
		2852	my $res = $facedata->{resource};
		2853	my $enc = JSON::XS->new->utf8->canonical;
		2854
		2855	while (my ($name, $info) = each %$res) {
		2856	my $meta = $enc->encode ({
		2857	name => $name,
		2858	type => $info->{type},
		2859	copyright => $info->{copyright}, #TODO#
		2860	});
		2861
		2862	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2863
		2864	if ($name =~ /\.jpg$/) {
		2865	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2866	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2867	} else {
		2868	my $data = pack "(w/a*)*", $meta, $info->{data};
		2869	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2870
		2871	cf::face::set_type $idx, 1;
		2872	cf::face::set_data $idx, 0, $data, $chk;
		2873	}
		2874
		2875	cf::cede_to_tick;
		2876	}
		2877	}
		2878
2486	1	2879	1
2487	}	2880	}
2488		2881
		2882	sub reload_regions {
		2883	load_resource_file "$MAPDIR/regions"
		2884	or die "unable to load regions file\n";
		2885
		2886	for (cf::region::list) {
		2887	$_->{match} = qr/$_->{match}/
		2888	if exists $_->{match};
		2889	}
		2890	}
		2891
2489	sub reload_facedata {	2892	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	2893	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	2894	or die "unable to load facedata\n";
2492	}	2895	}
2493		2896
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 {	2897	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	2898	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	2899	or die "unable to load archetypes\n";
		2900	#d# NEED to laod twice to resolve forward references
		2901	# this really needs to be done in an extra post-pass
		2902	# (which needs to be synchronous, so solve it differently)
		2903	load_resource_file "$DATADIR/archetypes"
		2904	or die "unable to load archetypes\n";
2502	}	2905	}
2503		2906
2504	sub reload_treasures {	2907	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	2908	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	2909	or die "unable to load treasurelists\n";
2507	}	2910	}
2508		2911
2509	sub reload_resources {	2912	sub reload_resources {
2510	warn "reloading resource files...\n";	2913	warn "reloading resource files...\n";
2511		2914
2512	reload_regions;	2915	reload_regions;
2513	reload_facedata;	2916	reload_facedata;
		2917	#reload_archetypes;#d#
2514	reload_archetypes;	2918	reload_archetypes;
2515	reload_treasures;	2919	reload_treasures;
2516		2920
2517	warn "finished reloading resource files\n";	2921	warn "finished reloading resource files\n";
2518	}	2922	}
…		…
2520	sub init {	2924	sub init {
2521	reload_resources;	2925	reload_resources;
2522	}	2926	}
2523		2927
2524	sub cfg_load {	2928	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	2929	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	2930	or return;
2527		2931
2528	local $/;	2932	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	2933	*CFG = YAML::Syck::Load <$fh>;
2530		2934
…		…
2575	},	2979	},
2576	);	2980	);
2577	}	2981	}
2578	}	2982	}
2579		2983
		2984	sub write_runtime {
		2985	my $runtime = "$LOCALDIR/runtime";
		2986
		2987	# first touch the runtime file to show we are still running:
		2988	# the fsync below can take a very very long time.
		2989
		2990	IO::AIO::aio_utime $runtime, undef, undef;
		2991
		2992	my $guard = cf::lock_acquire "write_runtime";
		2993
		2994	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2995	or return;
		2996
		2997	my $value = $cf::RUNTIME + 90 + 10;
		2998	# 10 is the runtime save interval, for a monotonic clock
		2999	# 60 allows for the watchdog to kill the server.
		3000
		3001	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3002	and return;
		3003
		3004	# always fsync - this file is important
		3005	aio_fsync $fh
		3006	and return;
		3007
		3008	# touch it again to show we are up-to-date
		3009	aio_utime $fh, undef, undef;
		3010
		3011	close $fh
		3012	or return;
		3013
		3014	aio_rename "$runtime~", $runtime
		3015	and return;
		3016
		3017	warn "runtime file written.\n";
		3018
		3019	1
		3020	}
		3021
2580	sub emergency_save() {	3022	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3023	my $freeze_guard = cf::freeze_mainloop;
2582		3024
2583	warn "enter emergency perl save\n";	3025	warn "enter emergency perl save\n";
2584		3026
…		…
2659	%EXT_CORO = ();	3101	%EXT_CORO = ();
2660		3102
2661	warn "removing commands";	3103	warn "removing commands";
2662	%COMMAND = ();	3104	%COMMAND = ();
2663		3105
2664	warn "removing ext commands";	3106	warn "removing ext/exti commands";
2665	%EXTCMD = ();	3107	%EXTCMD = ();
		3108	%EXTICMD = ();
2666		3109
2667	warn "unloading/nuking all extensions";	3110	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {	3111	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";	3112	warn "... unloading $pkg";
2670		3113
…		…
2700	Symbol::delete_package "safe::$_"	3143	Symbol::delete_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3145
2703	warn "unloading cf.pm \"a bit\"";	3146	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3147	delete $INC{"cf.pm"};
		3148	delete $INC{"cf/pod.pm"};
2705		3149
2706	# don't, removes xs symbols, too,	3150	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3151	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3152	#Symbol::delete_package __PACKAGE__;
2709		3153
…		…
2787	my $signal = new Coro::Signal;	3231	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3232	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3233	$signal->wait;
2790	}	3234	}
2791		3235
		3236	my $min = 1e6;#d#
		3237	my $avg = 10;
2792	$TICK_WATCHER = Event->timer (	3238	$TICK_WATCHER = Event->timer (
2793	reentrant => 0,	3239	reentrant => 0,
2794	parked => 1,	3240	parked => 1,
2795	prio => 0,	3241	prio => 0,
2796	at => $NEXT_TICK || $TICK,	3242	at => $NEXT_TICK || $TICK,
…		…
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3246	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3247	unless ++$bug_warning > 10;
2802	return;	3248	return;
2803	}	3249	}
2804		3250
2805	$NOW = Event::time;	3251	$NOW = $tick_start = Event::time;
2806		3252
2807	cf::server_tick; # one server iteration	3253	cf::server_tick; # one server iteration
		3254
		3255	0 && sync_job {#d#
		3256	for(1..10) {
		3257	my $t = Event::time;
		3258	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3259	or die;
		3260
		3261	$map->width (50);
		3262	$map->height (50);
		3263	$map->alloc;
		3264	$map->_load_objects ("/tmp/x.map", 1);
		3265	my $t = Event::time - $t;
		3266
		3267	#next unless $t < 0.0013;#d#
		3268	if ($t < $min) {
		3269	$min = $t;
		3270	}
		3271	$avg = $avg * 0.99 + $t * 0.01;
		3272	}
		3273	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3274	exit 0;
		3275	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3276	};
2808		3277
2809	$RUNTIME += $TICK;	3278	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;	3279	$NEXT_TICK += $TICK;
2811		3280
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3281	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2818	}	3287	}
2819		3288
2820	# my $AFTER = Event::time;	3289	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#	3290	# warn $AFTER - $NOW;#d#
2822		3291
		3292	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3293	$sig->send;
		3294	}
		3295	while (my $sig = shift @WAIT_FOR_TICK) {
		3296	$sig->send;
		3297	}
		3298
		3299	$NOW = Event::time;
		3300
2823	# if we are delayed by four ticks or more, skip them all	3301	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3302	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2825		3303
2826	$TICK_WATCHER->at ($NEXT_TICK);	3304	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;	3305	$TICK_WATCHER->start;
2828		3306
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3307	$LOAD = ($NOW - $tick_start) / $TICK;
2830	$sig->send;	3308	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2831	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;
2834	}
2835		3309
2836	_post_tick;	3310	_post_tick;
		3311
		3312
2837	},	3313	},
2838	);	3314	);
2839		3315
2840	{	3316	{
2841	BDB::max_poll_time $TICK * 0.1;	3317	BDB::max_poll_time $TICK * 0.1;
…		…
2869		3345
2870	cf::sync_job {	3346	cf::sync_job {
2871	eval {	3347	eval {
2872	BDB::db_env_open	3348	BDB::db_env_open
2873	$DB_ENV,	3349	$DB_ENV,
2874	$BDB_ENV_DIR,	3350	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3351	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3352	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3353	0666;
2878		3354
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3355	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880		3356
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3357	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;	3358	$DB_ENV->set_lk_detect;
2883	};	3359	};
2884		3360
…		…
2900	prio => 6,	3376	prio => 6,
2901	cb => \&IO::AIO::poll_cb,	3377	cb => \&IO::AIO::poll_cb,
2902	);	3378	);
2903	}	3379	}
2904		3380
		3381	my $_log_backtrace;
		3382
		3383	sub _log_backtrace {
		3384	my ($msg, @addr) = @_;
		3385
		3386	$msg =~ s/\n//;
		3387
		3388	# limit the # of concurrent backtraces
		3389	if ($_log_backtrace < 2) {
		3390	++$_log_backtrace;
		3391	async {
		3392	my @bt = fork_call {
		3393	@addr = map { sprintf "%x", $_ } @addr;
		3394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3396	or die "addr2line: $!";
		3397
		3398	my @funcs;
		3399	my @res = <$fh>;
		3400	chomp for @res;
		3401	while (@res) {
		3402	my ($func, $line) = splice @res, 0, 2, ();
		3403	push @funcs, "[$func] $line";
		3404	}
		3405
		3406	@funcs
		3407	};
		3408
		3409	LOG llevInfo, "[ABT] $msg\n";
		3410	LOG llevInfo, "[ABT] $_\n" for @bt;
		3411	--$_log_backtrace;
		3412	};
		3413	} else {
		3414	LOG llevInfo, "[ABT] $msg\n";
		3415	LOG llevInfo, "[ABT] [suppressed]\n";
		3416	}
		3417	}
		3418
2905	# load additional modules	3419	# load additional modules
2906	use cf::pod;	3420	use cf::pod;
2907		3421
2908	END { cf::emergency_save }	3422	END { cf::emergency_save }
2909		3423

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