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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.280 by root, Sat Jun 16 14:35:41 2007 UTC vs.
Revision 1.401 by root, Mon Dec 17 06:45:53 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Socket;	8	use Socket;
9	use Storable;	9	use EV;
10	use Event;
11	use Opcode;	10	use Opcode;
12	use Safe;	11	use Safe;
13	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
14		14
15	use Coro 3.61 ();	15	use Coro 4.32 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::EV;
19	use Coro::Timer;	19	use Coro::Timer;
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::BDB;
23	use Coro::Storable;	24	use Coro::Storable;
		25	use Coro::Util ();
24		26
		27	use JSON::XS 2.01 ();
25	use BDB ();	28	use BDB ();
26	use Data::Dumper;	29	use Data::Dumper;
27	use Digest::MD5;	30	use Digest::MD5;
28	use Fcntl;	31	use Fcntl;
29	use YAML::Syck ();	32	use YAML::Syck ();
30	use IO::AIO 2.32 ();	33	use IO::AIO 2.51 ();
31	use Time::HiRes;	34	use Time::HiRes;
32	use Compress::LZF;	35	use Compress::LZF;
		36	use Digest::MD5 ();
33		37
34	# configure various modules to our taste	38	# configure various modules to our taste
35	#	39	#
36	$Storable::canonical = 1; # reduce rsync transfers	40	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		43
40	$Event::Eval = 1; # no idea why this is required, but it is
41
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
44		46
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		48
…		…
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;
…		…
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;	76	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	79	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		81
80	our $BDB_POLL_WATCHER;	82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	86	our $DB_ENV;
82		87
83	our %CFG;	88	our %CFG;
84		89
85	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
87		93
88	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
91		97
92	# used to convert map paths into valid unix filenames by replacing / by ∕	98	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		100
…		…
155		161
156	The raw value load value from the last tick.	162	The raw value load value from the last tick.
157		163
158	=item %cf::CFG	164	=item %cf::CFG
159		165
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	167	from wherever your confdir points to.
162		168
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		170
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	172	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
		180
169	=back	181	=back
170		182
171	=cut	183	=cut
172		184
173	BEGIN {	185	BEGIN {
…		…
177	$msg .= "\n"	189	$msg .= "\n"
178	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
179		191
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		193
182	utf8::encode $msg;
183	LOG llevError, $msg;	194	LOG llevError, $msg;
184	};	195	};
185	}	196	}
186		197
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
203	)) {	214	)) {
204	no strict 'refs';	215	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	217	}
207		218
208	$Event::DIED = sub {	219	$EV::DIED = sub {
209	warn "error in event callback: @_";	220	warn "error in event callback: @_";
210	};	221	};
		222
		223	#############################################################################
211		224
212	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
213		226
214	=over 4	227	=over 4
215		228
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	248	$d
236	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
237	}	250	}
238		251
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
242		253
243	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
244		255
245	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
246		257
247	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
		259
		260	=cut
		261
		262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		263
		264	sub encode_json($) { $json_coder->encode ($_[0]) }
		265	sub decode_json($) { $json_coder->decode ($_[0]) }
248		266
249	=item cf::lock_wait $string	267	=item cf::lock_wait $string
250		268
251	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
252		270
…		…
255	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
258	returned.	276	returned.
259		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
260	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
262		283
263	=item $locked = cf::lock_active $string	284	=item $locked = cf::lock_active $string
264		285
265	Return true if the lock is currently active, i.e. somebody has locked it.	286	Return true if the lock is currently active, i.e. somebody has locked it.
266		287
267	=cut	288	=cut
268		289
269	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
270		292
271	sub lock_wait($) {	293	sub lock_wait($) {
272	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
273		300
274	# wait for lock, if any	301	# wait for lock, if any
275	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;	304	Coro::schedule;
…		…
283		310
284	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
285	lock_wait $key;	312	lock_wait $key;
286		313
287	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
288		316
289	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
290	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
292	}	321	}
293	}	322	}
294		323
…		…
306	};	335	};
307	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
308	$guard	337	$guard
309	}	338	}
310		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
		411	}
		412
311	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
312		414
313	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	416	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
315	thing you are allowed to do is call C<prio> on it.	417	thing you are allowed to do is call C<prio> on it.
…		…
318		420
319	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
320		422
321	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
322		424
323	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
326		429
327	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
330	fast or be very important.	433	fast or be very important.
…		…
333		436
334	sub sync_job(&) {	437	sub sync_job(&) {
335	my ($job) = @_;	438	my ($job) = @_;
336		439
337	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
338	my $time = Event::time;	441	my $time = EV::time;
339		442
340	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
342		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
343	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
344	# (but this is cancel-safe)	449	# (but this is cancel-safe)
345	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
346		451
347	my $busy = 1;	452	my $busy = 1;
348	my @res;	453	my @res;
349		454
350	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	457	@res = eval { $job->() };
352	warn $@ if $@;	458	warn $@ if $@;
353	undef $busy;	459	undef $busy;
354	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
355		461
356	while ($busy) {	462	while ($busy) {
357	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
358	}	467	}
		468	}
359		469
360	$time = Event::time - $time;	470	$time = EV::time - $time;
361		471
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"	472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;	473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364		474
365	$tick_start += $time; # do not account sync jobs to server load	475	$tick_start += $time; # do not account sync jobs to server load
…		…
390	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
391		501
392	$coro	502	$coro
393	}	503	}
394		504
395	sub write_runtime {	505	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		506
398	# first touch the runtime file to show we are still running:	507	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
400		511
401	IO::AIO::aio_utime $runtime, undef, undef;	512	=cut
402		513
403	my $guard = cf::lock_acquire "write_runtime";	514	sub fork_call(&@) {
		515	my ($cb, @args) = @_;
404		516
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	517	# we seemingly have to make a local copy of the whole thing,
406	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
407		520
408	my $value = $cf::RUNTIME + 90 + 10;	521	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	522	reset_signals;
410	# 60 allows for the watchdog to kill the server.	523	&$cb
		524	}, @args;
411		525
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	526	wantarray ? @res : $res[-1]
413	and return;	527	}
414		528
415	# always fsync - this file is important	529	=item $value = cf::db_get $family => $key
416	aio_fsync $fh
417	and return;
418		530
419	# touch it again to show we are up-to-date	531	Returns a single value from the environment database.
420	aio_utime $fh, undef, undef;
421		532
422	close $fh	533	=item cf::db_put $family => $key => $value
423	or return;
424		534
425	aio_rename "$runtime~", $runtime	535	Stores the given C<$value> in the family. It can currently store binary
426	and return;	536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
427		537
428	warn "runtime file written.\n";	538	=item $db = cf::db_table "name"
429		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
430	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
431	}	654	}
432		655
433	=item cf::datalog type => key => value, ...	656	=item cf::datalog type => key => value, ...
434		657
435	Log a datalog packet of the given type with the given key-value pairs.	658	Log a datalog packet of the given type with the given key-value pairs.
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
455		678
456	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	681	Deliantra).
459		682
460	=over 4	683	=over 4
461		684
462	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
463		686
…		…
715	";	938	";
716	die if $@;	939	die if $@;
717	}	940	}
718		941
719	our $override;	942	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		944
722	sub override {	945	sub override {
723	$override = 1;	946	$override = 1;
724	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
725	}	948	}
726		949
727	sub do_invoke {	950	sub do_invoke {
728	my $event = shift;	951	my $event = shift;
729	my $callbacks = shift;	952	my $callbacks = shift;
730		953
731	@invoke_results = ();	954	@INVOKE_RESULTS = ();
732		955
733	local $override;	956	local $override;
734		957
735	for (@$callbacks) {	958	for (@$callbacks) {
736	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
753		976
754	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
755		978
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		982
760	=back	983	=back
761		984
762	=cut	985	=cut
763		986
764	#############################################################################	987	#############################################################################
765	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
766		1031
767	sub reattach {	1032	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1034	my ($obj) = @_;
770		1035
…		…
791	cf::attachable->attach (	1056	cf::attachable->attach (
792	prio => -1000000,	1057	prio => -1000000,
793	on_instantiate => sub {	1058	on_instantiate => sub {
794	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
795		1060
796	$data = from_json $data;	1061	$data = decode_json $data;
797		1062
798	for (@$data) {	1063	for (@$data) {
799	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
800		1065
801	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1082	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
819		1084
820	sync_job {	1085	sync_job {
821	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
824		1090
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1094	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1095	close $fh;
830		1096
831	if (@$objs) {	1097	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1102	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1103	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
839	}	1105	}
…		…
847	}	1113	}
848	} else {	1114	} else {
849	aio_unlink $filename;	1115	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
851	}	1117	}
852	}	1118	};
853	}	1119	}
854		1120
855	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
857		1123
…		…
869	or return;	1135	or return;
870		1136
871	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
873	or return;	1139	or return;
		1140
874	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
875	}	1143	}
876		1144
		1145	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1147	$decname, length $data, scalar @{$av || []};
		1148
879	return ($data, $av);	1149	($data, $av)
880	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
881		1157
882	#############################################################################	1158	#############################################################################
883	# command handling &c	1159	# command handling &c
884		1160
885	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1175	}
900		1176
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1178
903	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
904		1184
905	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
906	called.	1186	called.
907		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
908	=cut	1199	=cut
909		1200
910	sub register_extcmd {	1201	sub register_extcmd {
911	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
912		1203
913	$EXTCMD{$name} = $cb;	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
914	}	1211	}
915		1212
916	cf::player->attach (	1213	cf::player->attach (
917	on_command => sub {	1214	on_command => sub {
918	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1224	cf::override;
928	},	1225	},
929	on_extcmd => sub {	1226	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
931		1228
932	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1230
934	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
940	} else {	1246	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1248	}
943		1249
944	cf::override;	1250	cf::override;
…		…
1018	};	1324	};
1019	}	1325	}
1020		1326
1021	#############################################################################	1327	#############################################################################
1022		1328
		1329	=back
		1330
1023	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
1024		1332
1025	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
1026		1334
1027	=cut	1335	=cut
…		…
1031	use Coro::AIO;	1339	use Coro::AIO;
1032		1340
1033	=head3 cf::player	1341	=head3 cf::player
1034		1342
1035	=over 4	1343	=over 4
		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
1036		1358
1037	=item cf::player::find $login	1359	=item cf::player::find $login
1038		1360
1039	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
1040		1362
…		…
1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1079	aio_unlink +(playerdir $login) . "/$login.pl";	1401	aio_unlink +(playerdir $login) . "/$login.pl";
1080		1402
1081	my $pl = load_pl path $login	1403	my $f = new_from_file cf::object::thawer path $login
1082	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
1083	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
1084	}	1411	}
1085	}	1412	}
1086	}	1413	}
1087		1414
…		…
1097		1424
1098	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
1099	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
1100		1427
1101	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
1102	Coro::cede;	1429	cf::cede_to_tick;
1103	}	1430	}
1104		1431
1105	sub new($) {	1432	sub new($) {
1106	my ($login) = @_;	1433	my ($login) = @_;
1107		1434
…		…
1111	$self->{deny_save} = 1;	1438	$self->{deny_save} = 1;
1112		1439
1113	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1114		1441
1115	$self	1442	$self
		1443	}
		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
1116	}	1453	}
1117		1454
1118	=item $pl->quit_character	1455	=item $pl->quit_character
1119		1456
1120	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
…		…
1175	or return [];	1512	or return [];
1176		1513
1177	my @logins;	1514	my @logins;
1178		1515
1179	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1180	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1181	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1182	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1183		1525
1184	utf8::decode $login;	1526	utf8::decode $login;
1185	push @logins, $login;	1527	push @logins, $login;
1186	}	1528	}
1187		1529
…		…
1214	}	1556	}
1215		1557
1216	\@paths	1558	\@paths
1217	}	1559	}
1218		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1219	=item $player->ext_reply ($msgid, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1220		1655
1221	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1222		1657
1223	=cut	1658	=cut
1224		1659
1225	sub ext_reply($$%) {	1660	sub ext_reply($$@) {
1226	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1227		1662
1228	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1229
1230	$self->send ("ext " . cf::to_json \%msg);
1231	}	1664	}
1232		1665
1233	=item $player->ext_event ($type, %msg)	1666	=item $player->ext_msg ($type, @msg)
1234		1667
1235	Sends an ext event to the client.	1668	Sends an ext event to the client.
1236		1669
1237	=cut	1670	=cut
1238		1671
1239	sub ext_event($$%) {	1672	sub ext_msg($$@) {
1240	my ($self, $type, %msg) = @_;	1673	my ($self, $type, @msg) = @_;
1241		1674
1242	$self->ns->ext_event ($type, %msg);	1675	$self->ns->ext_msg ($type, @msg);
1243	}	1676	}
1244		1677
1245	=head3 cf::region	1678	=head3 cf::region
1246		1679
1247	=over 4	1680	=over 4
…		…
1250		1683
1251	package cf::region;	1684	package cf::region;
1252		1685
1253	=item cf::region::find_by_path $path	1686	=item cf::region::find_by_path $path
1254		1687
1255	Tries to decuce the probable region for a map knowing only its path.	1688	Tries to decuce the likely region for a map knowing only its path.
1256		1689
1257	=cut	1690	=cut
1258		1691
1259	sub find_by_path($) {	1692	sub find_by_path($) {
1260	my ($path) = @_;	1693	my ($path) = @_;
1261		1694
1262	my ($match, $specificity);	1695	my ($match, $specificity);
1263		1696
1264	for my $region (list) {	1697	for my $region (list) {
1265	if ($region->match && $path =~ $region->match) {	1698	if ($region->{match} && $path =~ $region->{match}) {
1266	($match, $specificity) = ($region, $region->specificity)	1699	($match, $specificity) = ($region, $region->specificity)
1267	if $region->specificity > $specificity;	1700	if $region->specificity > $specificity;
1268	}	1701	}
1269	}	1702	}
1270		1703
…		…
1390	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1391	return $self;	1824	return $self;
1392	}	1825	}
1393	}	1826	}
1394		1827
1395	Carp::carp "unable to resolve path '$path' (base '$base').";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1396	()	1829	()
1397	}	1830	}
1398		1831
1399	sub init {	1832	sub init {
1400	my ($self) = @_;	1833	my ($self) = @_;
…		…
1463		1896
1464	sub load_header_from($) {	1897	sub load_header_from($) {
1465	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1466		1899
1467	utf8::encode $path;	1900	utf8::encode $path;
1468	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1469	# or return;
1470
1471	$self->_load_header ($path)
1472	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1473		1909
1474	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1475		1911
1476	1	1912	1
1477	}	1913	}
…		…
1531	sub find {	1967	sub find {
1532	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1533		1969
1534	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1535		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1536	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1537		1974
1538	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1539	my $guard = cf::lock_acquire "map_find:$path";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1978
1540	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1541	or return;	1980	or return;
1542		1981
1543	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1544		1983
…		…
1546	or return;	1985	or return;
1547		1986
1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1549	# doing this can freeze the server in a sync job, obviously	1988	# doing this can freeze the server in a sync job, obviously
1550	#$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1551	$map->reset;	1992	$map->reset;
1552	undef $guard;
1553	return find $path;	1993	return find $path;
1554	}	1994	}
1555		1995
1556	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1557	}	1997	}
…		…
1566	local $self->{deny_reset} = 1; # loading can take a long time	2006	local $self->{deny_reset} = 1; # loading can take a long time
1567		2007
1568	my $path = $self->{path};	2008	my $path = $self->{path};
1569		2009
1570	{	2010	{
1571	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1572		2012
		2013	return unless $self->valid;
1573	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1574		2015
1575	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1576		2017
1577	$self->alloc;	2018	$self->alloc;
1578		2019
1579	$self->pre_load;	2020	$self->pre_load;
1580	Coro::cede;	2021	cf::cede_to_tick;
1581		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
1582	$self->_load_objects ($self->{load_path}, 1)	2025	$self->_load_objects ($f)
1583	or return;	2026	or return;
1584		2027
1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1586	if delete $self->{load_original};	2029	if delete $self->{load_original};
1587		2030
1588	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1589	utf8::encode $uniq;	2032	utf8::encode $uniq;
1590	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1591	$self->clear_unique_items;	2035	$self->clear_unique_items;
1592	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1593	}	2039	}
1594	}	2040	}
1595		2041
1596	Coro::cede;	2042	$f->resolve_delayed_derefs;
		2043
		2044	cf::cede_to_tick;
1597	# now do the right thing for maps	2045	# now do the right thing for maps
1598	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1599	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1600	unless $self->difficulty;	2048	unless $self->difficulty;
1601	Coro::cede;	2049	cf::cede_to_tick;
1602		2050
1603	unless ($self->{deny_activate}) {	2051	unless ($self->{deny_activate}) {
1604	$self->decay_objects;	2052	$self->decay_objects;
1605	$self->fix_auto_apply;	2053	$self->fix_auto_apply;
1606	$self->update_buttons;	2054	$self->update_buttons;
1607	Coro::cede;	2055	cf::cede_to_tick;
1608	$self->set_darkness_map;	2056	$self->set_darkness_map;
1609	Coro::cede;	2057	cf::cede_to_tick;
1610	$self->activate;	2058	$self->activate;
1611	}	2059	}
		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1612		2063
1613	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
1614	}	2065	}
1615		2066
1616	$self->post_load;	2067	$self->post_load;
…		…
1627		2078
1628	$self	2079	$self
1629	}	2080	}
1630		2081
1631	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1632	sub load_diag {	2083	sub load_neighbours {
1633	my ($map) = @_;	2084	my ($map) = @_;
1634		2085
1635	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1636		2087
1637	for (0 .. 3) {	2088	for (0 .. 3) {
1638	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1639	or next;	2090	or next;
1640	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1641	or next;	2092	or next;
1642	$neigh->load;	2093	$neigh->load;
1643		2094
		2095	push @neigh,
1644	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1645	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1646	}	2098	}
1647		2099
1648	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1649	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1650	or next;	2103	or next;
1651	$neigh->load;	2104	$neigh->load;
1652	}	2105	}
1653	}	2106	}
1654		2107
…		…
1659	}	2112	}
1660		2113
1661	sub do_load_sync {	2114	sub do_load_sync {
1662	my ($map) = @_;	2115	my ($map) = @_;
1663		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1664	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1665	}	2121	}
1666		2122
1667	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1668	our $MAP_PREFETCHER = undef;	2124	our $MAP_PREFETCHER = undef;
1669		2125
1670	sub find_async {	2126	sub find_async {
1671	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1672		2128
1673	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1674		2130
1675	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1677	}	2133	}
1678		2134
1679	undef $MAP_PREFETCH{$path};	2135	$MAP_PREFETCH{$path} |= $load;
		2136
1680	$MAP_PREFETCHER ||= cf::async {	2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
1681	while (%MAP_PREFETCH) {	2140	while (%MAP_PREFETCH) {
1682	for my $path (keys %MAP_PREFETCH) {	2141	while (my ($k, $v) = each %MAP_PREFETCH) {
1683	my $map = find $path	2142	if (my $map = find $k) {
1684	or next;
1685	$map->load;	2143	$map->load if $v;
		2144	}
1686		2145
1687	delete $MAP_PREFETCH{$path};	2146	delete $MAP_PREFETCH{$k};
1688	}	2147	}
1689	}	2148	}
1690	undef $MAP_PREFETCHER;	2149	undef $MAP_PREFETCHER;
1691	};	2150	};
1692	$MAP_PREFETCHER->prio (6);	2151	$MAP_PREFETCHER->prio (6);
…		…
1695	}	2154	}
1696		2155
1697	sub save {	2156	sub save {
1698	my ($self) = @_;	2157	my ($self) = @_;
1699		2158
1700	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1701		2160
1702	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1703		2162
1704	return unless $self->dirty;	2163	return unless $self->dirty;
1705		2164
…		…
1711	return if $self->{deny_save};	2170	return if $self->{deny_save};
1712		2171
1713	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1714		2173
1715	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1716	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1717	};	2177	};
1718		2178
1719	if ($uniq) {	2179	if ($uniq) {
1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1728	my ($self) = @_;	2188	my ($self) = @_;
1729		2189
1730	# save first because save cedes	2190	# save first because save cedes
1731	$self->save;	2191	$self->save;
1732		2192
1733	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1734		2194
1735	return if $self->players;	2195	return if $self->players;
1736	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1737	return if $self->{deny_save};	2197	return if $self->{deny_save};
1738		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1739	$self->clear;	2203	$self->clear;
1740	$self->in_memory (cf::MAP_SWAPPED);
1741	}	2204	}
1742		2205
1743	sub reset_at {	2206	sub reset_at {
1744	my ($self) = @_;	2207	my ($self) = @_;
1745		2208
…		…
1777	if $uniq;	2240	if $uniq;
1778	}	2241	}
1779		2242
1780	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1781		2244
		2245	$self->deactivate;
		2246	$_->clear_links_to ($self) for values %cf::MAP;
1782	$self->clear;	2247	$self->clear;
1783
1784	$_->clear_links_to ($self) for values %cf::MAP;
1785		2248
1786	$self->unlink_save;	2249	$self->unlink_save;
1787	$self->destroy;	2250	$self->destroy;
1788	}	2251	}
1789		2252
1790	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1791		2254
1792	sub nuke {	2255	sub nuke {
1793	my ($self) = @_;	2256	my ($self) = @_;
1794		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
1795	delete $cf::MAP{$self->path};	2261	delete $cf::MAP{$self->path};
1796		2262
1797	$self->unlink_save;	2263	$self->unlink_save;
1798		2264
1799	bless $self, "cf::map";	2265	bless $self, "cf::map";
1800	delete $self->{deny_reset};	2266	delete $self->{deny_reset};
1801	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1802	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1804		2270
1805	$cf::MAP{$self->path} = $self;	2271	$cf::MAP{$self->path} = $self;
		2272	}
1806		2273
1807	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1808	}	2275	}
1809		2276
1810	=item $maps = cf::map::tmp_maps	2277	=item $maps = cf::map::tmp_maps
…		…
1886		2353
1887	sub inv_recursive {	2354	sub inv_recursive {
1888	inv_recursive_ inv $_[0]	2355	inv_recursive_ inv $_[0]
1889	}	2356	}
1890		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
		2384	}
		2385
1891	package cf;	2386	package cf;
1892		2387
1893	=back	2388	=back
1894		2389
1895	=head3 cf::object::player	2390	=head3 cf::object::player
…		…
1912		2407
1913	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1914		2409
1915	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1916	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1917	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1918	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1919	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1920	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1921	}	2435	}
1922		2436
1923	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1924		2438
1925	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
2004	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
2005	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
2006	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
2007		2521
2008	$map->load;	2522	$map->load;
2009	$map->load_diag;	2523	$map->load_neighbours;
2010		2524
2011	return unless $self->contr->active;	2525	return unless $self->contr->active;
2012	$self->activate_recursive;	2526	$self->activate_recursive;
2013		2527
2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2015	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
2016	}	2530	}
2017		2531
2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2019		2533
2020	Moves the player to the given map-path and coordinates by first freezing	2534	Moves the player to the given map-path and coordinates by first freezing
2021	her, loading and preparing them map, calling the provided $check callback	2535	her, loading and preparing them map, calling the provided $check callback
2022	that has to return the map if sucecssful, and then unfreezes the player on	2536	that has to return the map if sucecssful, and then unfreezes the player on
2023	the new (success) or old (failed) map position.	2537	the new (success) or old (failed) map position. In either case, $done will
		2538	be called at the end of this process.
2024		2539
2025	=cut	2540	=cut
2026		2541
2027	our $GOTOGEN;	2542	our $GOTOGEN;
2028		2543
2029	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
2030	my ($self, $path, $x, $y, $check) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
2031		2546
2032	# do generation counting so two concurrent goto's will be executed in-order	2547	# do generation counting so two concurrent goto's will be executed in-order
2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2034		2549
2035	$self->enter_link;	2550	$self->enter_link;
2036		2551
2037	(async {	2552	(async {
		2553	$Coro::current->{desc} = "player::goto $path $x $y";
		2554
		2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
2038	my $map = eval {	2574	my $map = eval {
2039	my $map = cf::map::find $path;	2575	my $map = defined $path ? cf::map::find $path : undef;
2040		2576
2041	if ($map) {	2577	if ($map) {
2042	$map = $map->customise_for ($self);	2578	$map = $map->customise_for ($self);
2043	$map = $check->($map) if $check && $map;	2579	$map = $check->($map) if $check && $map;
2044	} else {	2580	} else {
2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2046	}	2582	}
2047		2583
2048	$map	2584	$map
2049	};	2585	};
2050		2586
…		…
2055		2591
2056	if ($gen == $self->{_goto_generation}) {	2592	if ($gen == $self->{_goto_generation}) {
2057	delete $self->{_goto_generation};	2593	delete $self->{_goto_generation};
2058	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
2059	}	2595	}
		2596
		2597	$done->() if $done;
2060	})->prio (1);	2598	})->prio (1);
2061	}	2599	}
2062		2600
2063	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
2064		2602
…		…
2101	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
2102	}	2640	}
2103		2641
2104	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
2105		2643
2106	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
2107	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
2108	my $meta = "$RANDOMDIR/$md5.meta";	2646	my $meta = "$RANDOMDIR/$md5.meta";
2109		2647
2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2111	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
…		…
2133	my $hp = $exit->stats->hp;	2671	my $hp = $exit->stats->hp;
2134	my $sp = $exit->stats->sp;	2672	my $sp = $exit->stats->sp;
2135		2673
2136	$self->enter_link;	2674	$self->enter_link;
2137		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
2138	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
2139	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
2140	unless (eval {	2684	unless (eval {
2141	$self->goto ($slaying, $hp, $sp);	2685	$self->goto ($slaying, $hp, $sp);
2142		2686
2143	1;	2687	1;
…		…
2169		2713
2170	utf8::encode $text;	2714	utf8::encode $text;
2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2172	}	2716	}
2173		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
2174	=item $client->ext_event ($type, %msg)	2842	=item $client->ext_msg ($type, @msg)
2175		2843
2176	Sends an exti event to the client.	2844	Sends an ext event to the client.
2177		2845
2178	=cut	2846	=cut
2179		2847
2180	sub cf::client::ext_event($$%) {	2848	sub cf::client::ext_msg($$@) {
2181	my ($self, $type, %msg) = @_;	2849	my ($self, $type, @msg) = @_;
2182		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
2183	$msg{msgtype} = "event_$type";	2854	push @msg, msgtype => "event_$type";
2184	$self->send_packet ("ext " . cf::to_json \%msg);	2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
2185	}	2875	}
2186		2876
2187	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
2188		2878
2189	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2191	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2192		2882
2193	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
2194	reliable at some point in the future.	2884	become reliable at some point in the future.
2195		2885
2196	=cut	2886	=cut
2197		2887
2198	sub cf::client::query {	2888	sub cf::client::query {
2199	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
2207	utf8::encode $text;	2897	utf8::encode $text;
2208	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2209		2899
2210	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
2211	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
2212	}	2904	}
2213		2905
2214	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
2215	on_reply => sub {	2912	on_reply => sub {
2216	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
2217		2914
2218	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
2219	# get handled first	2916	# get handled first
…		…
2231	} else {	2928	} else {
2232	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2233	}	2930	}
2234	}	2931	}
2235	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
2236	);	2959	);
2237		2960
2238	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
2239		2962
2240	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
2281	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
2282	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
2283		3006
2284	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
2285		3008
2286	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
2287		3014
2288	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
2289		3016
2290	=pod	3017	=pod
2291		3018
2292	The following functions and methods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
2293		3020
2294	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
2295	cf::object::player player	3025	cf::object::player
2296	cf::player peaceful	3026	player
2297	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
2298		3033
2299	=cut	3034	=cut
2300		3035
2301	for (	3036	for (
2302	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
2303	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
2304	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
2305	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
2306	) {	3043	) {
2307	no strict 'refs';	3044	no strict 'refs';
…		…
2378	=back	3115	=back
2379		3116
2380	=cut	3117	=cut
2381		3118
2382	#############################################################################	3119	#############################################################################
2383
2384	=head2 EXTENSION DATABASE SUPPORT
2385
2386	Crossfire maintains a very simple database for extension use. It can
2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2388	convert to/from binary).
2389
2390	The parameter C<$family> should best start with the name of the extension
2391	using it, it should be unique.
2392
2393	=over 4
2394
2395	=item $value = cf::db_get $family => $key
2396
2397	Returns a single value from the database.
2398
2399	=item cf::db_put $family => $key => $value
2400
2401	Stores the given C<$value> in the family.
2402
2403	=cut
2404
2405	our $DB;
2406
2407	sub db_init {
2408	unless ($DB) {
2409	$DB = BDB::db_create $DB_ENV;
2410
2411	cf::sync_job {
2412	eval {
2413	$DB->set_flags (BDB::CHKSUM);
2414
2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2417	cf::cleanup "db_open(db): $!" if $!;
2418	};
2419	cf::cleanup "db_open(db): $@" if $@;
2420	};
2421	}
2422	}
2423
2424	sub db_get($$) {
2425	my $key = "$_[0]/$_[1]";
2426
2427	cf::sync_job {
2428	BDB::db_get $DB, undef, $key, my $data;
2429
2430	$! ? ()
2431	: $data
2432	}
2433	}
2434
2435	sub db_put($$$) {
2436	BDB::dbreq_pri 4;
2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2438	}
2439
2440	=item cf::cache $id => [$paths...], $processversion => $process
2441
2442	Generic caching function that returns the value of the resource $id,
2443	caching and regenerating as required.
2444
2445	This function can block.
2446
2447	=cut
2448
2449	sub cache {
2450	my ($id, $src, $processversion, $process) = @_;
2451
2452	my $meta =
2453	join "\x00",
2454	$processversion,
2455	map {
2456	aio_stat $_
2457	and Carp::croak "$_: $!";
2458
2459	($_, (stat _)[7,9])
2460	} @$src;
2461
2462	my $dbmeta = db_get cache => "$id/meta";
2463	if ($dbmeta ne $meta) {
2464	# changed, we may need to process
2465
2466	my @data;
2467	my $md5;
2468
2469	for (0 .. $#$src) {
2470	0 <= aio_load $src->[$_], $data[$_]
2471	or Carp::croak "$src->[$_]: $!";
2472	}
2473
2474	# if processing is expensive, check
2475	# checksum first
2476	if (1) {
2477	$md5 =
2478	join "\x00",
2479	$processversion,
2480	map {
2481	Coro::cede;
2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
2483	} 0.. $#$src;
2484
2485
2486	my $dbmd5 = db_get cache => "$id/md5";
2487	if ($dbmd5 eq $md5) {
2488	db_put cache => "$id/meta", $meta;
2489
2490	return db_get cache => "$id/data";
2491	}
2492	}
2493
2494	my $t1 = Time::HiRes::time;
2495	my $data = $process->(\@data);
2496	my $t2 = Time::HiRes::time;
2497
2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2499
2500	db_put cache => "$id/data", $data;
2501	db_put cache => "$id/md5" , $md5;
2502	db_put cache => "$id/meta", $meta;
2503
2504	return $data;
2505	}
2506
2507	db_get cache => "$id/data"
2508	}
2509
2510	=item fork_call { }, $args
2511
2512	Executes the given code block with the given arguments in a seperate
2513	process, returning the results. Everything must be serialisable with
2514	Coro::Storable. May, of course, block. Note that the executed sub may
2515	never block itself or use any form of Event handling.
2516
2517	=cut
2518
2519	sub fork_call(&@) {
2520	my ($cb, @args) = @_;
2521
2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2523	# or die "socketpair: $!";
2524	pipe my $fh1, my $fh2
2525	or die "pipe: $!";
2526
2527	if (my $pid = fork) {
2528	close $fh2;
2529
2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2531	$res = Coro::Storable::thaw $res;
2532
2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2534
2535	die $$res unless "ARRAY" eq ref $res;
2536
2537	return wantarray ? @$res : $res->[-1];
2538	} else {
2539	reset_signals;
2540	local $SIG{__WARN__};
2541	local $SIG{__DIE__};
2542	eval {
2543	close $fh1;
2544
2545	my @res = eval { $cb->(@args) };
2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2547	};
2548
2549	warn $@ if $@;
2550	_exit 0;
2551	}
2552	}
2553
2554	#############################################################################
2555	# the server's init and main functions	3120	# the server's init and main functions
2556		3121
2557	sub load_facedata($) {	3122	sub load_facedata($) {
2558	my ($path) = @_;	3123	my ($path) = @_;
		3124
		3125	# HACK to clear player env face cache, we need some signal framework
		3126	# for this (global event?)
		3127	%ext::player_env::MUSIC_FACE_CACHE = ();
		3128
		3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2559		3130
2560	warn "loading facedata from $path\n";	3131	warn "loading facedata from $path\n";
2561		3132
2562	my $facedata;	3133	my $facedata;
2563	0 < aio_load $path, $facedata	3134	0 < aio_load $path, $facedata
…		…
2566	$facedata = Coro::Storable::thaw $facedata;	3137	$facedata = Coro::Storable::thaw $facedata;
2567		3138
2568	$facedata->{version} == 2	3139	$facedata->{version} == 2
2569	or cf::cleanup "$path: version mismatch, cannot proceed.";	3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2570		3141
		3142	# patch in the exptable
		3143	$facedata->{resource}{"res/exp_table"} = {
		3144	type => FT_RSRC,
		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3146	};
		3147	cf::cede_to_tick;
		3148
2571	{	3149	{
2572	my $faces = $facedata->{faceinfo};	3150	my $faces = $facedata->{faceinfo};
2573		3151
2574	while (my ($face, $info) = each %$faces) {	3152	while (my ($face, $info) = each %$faces) {
2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3154	cf::face::set_visibility $idx, $info->{visibility};
		3155	cf::face::set_magicmap $idx, $info->{magicmap};
2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2579	Coro::cede;	3158
		3159	cf::cede_to_tick;
2580	}	3160	}
2581		3161
2582	while (my ($face, $info) = each %$faces) {	3162	while (my ($face, $info) = each %$faces) {
2583	next unless $info->{smooth};	3163	next unless $info->{smooth};
2584	my $idx = cf::face::find $face	3164	my $idx = cf::face::find $face
2585	or next;	3165	or next;
2586	if (my $smooth = cf::face::find $info->{smooth}) {	3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2588	} else {	3169	} else {
2589	warn "smooth face '$info->{smooth}' not found for face '$face'";	3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
2590	}	3171	}
2591	Coro::cede;	3172
		3173	cf::cede_to_tick;
2592	}	3174	}
2593	}	3175	}
2594		3176
2595	{	3177	{
2596	my $anims = $facedata->{animinfo};	3178	my $anims = $facedata->{animinfo};
2597		3179
2598	while (my ($anim, $info) = each %$anims) {	3180	while (my ($anim, $info) = each %$anims) {
2599	cf::anim::set $anim, $info->{frames}, $info->{facings};	3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
2600	Coro::cede;	3182	cf::cede_to_tick;
2601	}	3183	}
2602		3184
2603	cf::anim::invalidate_all; # d'oh	3185	cf::anim::invalidate_all; # d'oh
2604	}	3186	}
2605		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
2606	1	3237	1
2607	}	3238	}
2608		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
2609	sub reload_regions {	3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
2610	load_resource_file "$MAPDIR/regions"	3253	load_resource_file "$MAPDIR/regions"
2611	or die "unable to load regions file\n";	3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
2612	}	3260	}
2613		3261
2614	sub reload_facedata {	3262	sub reload_facedata {
2615	load_facedata "$DATADIR/facedata"	3263	load_facedata "$DATADIR/facedata"
2616	or die "unable to load facedata\n";	3264	or die "unable to load facedata\n";
2617	}	3265	}
2618		3266
2619	sub reload_archetypes {	3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
2620	load_resource_file "$DATADIR/archetypes"	3273	load_resource_file "$DATADIR/archetypes"
2621	or die "unable to load archetypes\n";	3274	or die "unable to load archetypes\n";
2622	}	3275	}
2623		3276
2624	sub reload_treasures {	3277	sub reload_treasures {
…		…
2640		3293
2641	sub init {	3294	sub init {
2642	reload_resources;	3295	reload_resources;
2643	}	3296	}
2644		3297
2645	sub cfg_load {	3298	sub reload_config {
2646	open my $fh, "<:utf8", "$CONFDIR/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2647	or return;	3300	or return;
2648		3301
2649	local $/;	3302	local $/;
2650	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
…		…
2666	sub main {	3319	sub main {
2667	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2668	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2670	(async {	3323	(async {
2671	Event::one_event;	3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
2672	})->prio (Coro::PRIO_MAX);	3326	})->prio (Coro::PRIO_MAX);
2673	};	3327	};
2674		3328
2675	cfg_load;	3329	reload_config;
2676	db_init;	3330	db_init;
2677	load_extensions;	3331	load_extensions;
2678		3332
2679	$TICK_WATCHER->start;	3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2680	Event::loop;	3335	EV::loop;
2681	}	3336	}
2682		3337
2683	#############################################################################	3338	#############################################################################
2684	# initialisation and cleanup	3339	# initialisation and cleanup
2685		3340
2686	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2687	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2688	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2689	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2690	reentrant => 0,
2691	data => WF_AUTOCANCEL,
2692	signal => $signal,
2693	prio => 0,
2694	cb => sub {
2695	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2696	},
2697	);	3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
2698	}	3386	1
2699	}	3387	}
2700		3388
2701	sub emergency_save() {	3389	sub emergency_save() {
2702	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2703		3391
…		…
2709	# and maps saved/destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2710	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2711	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2712	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2713	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2714	$pl->save;	3403	$pl->save;
2715	}	3404	}
2716	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2717		3406
2718	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2757	warn "syncing database to disk";	3446	warn "syncing database to disk";
2758	BDB::db_env_txn_checkpoint $DB_ENV;	3447	BDB::db_env_txn_checkpoint $DB_ENV;
2759		3448
2760	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2761		3450
2762	warn "cancelling all WF_AUTOCANCEL watchers";
2763	for (Event::all_watchers) {
2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2765	}
2766
2767	warn "flushing outstanding aio requests";	3451	warn "flushing outstanding aio requests";
2768	for (;;) {	3452	for (;;) {
2769	BDB::flush;	3453	BDB::flush;
2770	IO::AIO::flush;	3454	IO::AIO::flush;
2771	Coro::cede;	3455	Coro::cede_notself;
2772	last unless IO::AIO::nreqs || BDB::nreqs;	3456	last unless IO::AIO::nreqs || BDB::nreqs;
2773	warn "iterate...";	3457	warn "iterate...";
2774	}	3458	}
2775		3459
2776	++$RELOAD;	3460	++$RELOAD;
…		…
2780	%EXT_CORO = ();	3464	%EXT_CORO = ();
2781		3465
2782	warn "removing commands";	3466	warn "removing commands";
2783	%COMMAND = ();	3467	%COMMAND = ();
2784		3468
2785	warn "removing ext commands";	3469	warn "removing ext/exti commands";
2786	%EXTCMD = ();	3470	%EXTCMD = ();
		3471	%EXTICMD = ();
2787		3472
2788	warn "unloading/nuking all extensions";	3473	warn "unloading/nuking all extensions";
2789	for my $pkg (@EXTS) {	3474	for my $pkg (@EXTS) {
2790	warn "... unloading $pkg";	3475	warn "... unloading $pkg";
2791		3476
…		…
2834	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2835	require cf;	3520	require cf;
2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2837		3522
2838	warn "loading config and database again";	3523	warn "loading config and database again";
2839	cf::cfg_load;	3524	cf::reload_config;
2840		3525
2841	warn "loading extensions";	3526	warn "loading extensions";
2842	cf::load_extensions;	3527	cf::load_extensions;
2843		3528
2844	warn "reattaching attachments to objects/players";	3529	warn "reattaching attachments to objects/players";
…		…
2864		3549
2865	sub reload_perl() {	3550	sub reload_perl() {
2866	# doing reload synchronously and two reloads happen back-to-back,	3551	# doing reload synchronously and two reloads happen back-to-back,
2867	# coro crashes during coro_state_free->destroy here.	3552	# coro crashes during coro_state_free->destroy here.
2868		3553
2869	$RELOAD_WATCHER ||= Event->timer (	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2870	reentrant => 0,
2871	after => 0,
2872	data => WF_AUTOCANCEL,
2873	cb => sub {
2874	do_reload_perl;
2875	undef $RELOAD_WATCHER;	3555	undef $RELOAD_WATCHER;
2876	},	3556	do_reload_perl;
2877	);	3557	};
2878	}	3558	}
2879		3559
2880	register_command "reload" => sub {	3560	register_command "reload" => sub {
2881	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2882		3562
2883	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2884	$who->message ("reloading server.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
2885	async { reload_perl };	3567	reload_perl;
		3568	};
2886	}	3569	}
2887	};	3570	};
2888		3571
2889	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2890		3573
…		…
2909	my $signal = new Coro::Signal;	3592	my $signal = new Coro::Signal;
2910	push @WAIT_FOR_TICK_BEGIN, $signal;	3593	push @WAIT_FOR_TICK_BEGIN, $signal;
2911	$signal->wait;	3594	$signal->wait;
2912	}	3595	}
2913		3596
2914	my $min = 1e6;#d#	3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2915	my $avg = 10;
2916	$TICK_WATCHER = Event->timer (
2917	reentrant => 0,
2918	parked => 1,
2919	prio => 0,
2920	at => $NEXT_TICK || $TICK,
2921	data => WF_AUTOCANCEL,
2922	cb => sub {
2923	if ($Coro::current != $Coro::main) {	3598	if ($Coro::current != $Coro::main) {
2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2925	unless ++$bug_warning > 10;	3600	unless ++$bug_warning > 10;
2926	return;	3601	return;
2927	}	3602	}
2928		3603
2929	$NOW = $tick_start = Event::time;	3604	$NOW = $tick_start = EV::now;
2930		3605
2931	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
2932		3607
2933	0 && sync_job {#d#	3608	$RUNTIME += $TICK;
2934	for(1..10) {	3609	$NEXT_TICK += $TICK;
2935	my $t = Event::time;
2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2937	or die;
2938		3610
2939	$map->width (50);	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2940	$map->height (50);	3612	$NEXT_RUNTIME_WRITE = $NOW + 10;
2941	$map->alloc;	3613	Coro::async_pool {
2942	$map->_load_objects ("/tmp/x.map", 1);	3614	$Coro::current->{desc} = "runtime saver";
2943	my $t = Event::time - $t;	3615	write_runtime
2944		3616	or warn "ERROR: unable to write runtime file: $!";
2945	#next unless $t < 0.0013;#d#
2946	if ($t < $min) {
2947	$min = $t;
2948	}
2949	$avg = $avg * 0.99 + $t * 0.01;
2950	}
2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2952	exit 0;
2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2954	};	3617	};
		3618	}
2955		3619
2956	$RUNTIME += $TICK;
2957	$NEXT_TICK += $TICK;
2958
2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
2961	Coro::async_pool {
2962	write_runtime
2963	or warn "ERROR: unable to write runtime file: $!";
2964	};
2965	}
2966
2967	# my $AFTER = Event::time;
2968	# warn $AFTER - $NOW;#d#
2969
2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2971	$sig->send;	3621	$sig->send;
2972	}	3622	}
2973	while (my $sig = shift @WAIT_FOR_TICK) {	3623	while (my $sig = shift @WAIT_FOR_TICK) {
2974	$sig->send;	3624	$sig->send;
2975	}	3625	}
2976		3626
2977	$NOW = Event::time;
2978
2979	# if we are delayed by four ticks or more, skip them all
2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2981
2982	$TICK_WATCHER->at ($NEXT_TICK);
2983	$TICK_WATCHER->start;
2984
2985	$LOAD = ($NOW - $tick_start) / $TICK;	3627	$LOAD = ($NOW - $tick_start) / $TICK;
2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2987		3629
2988	_post_tick;	3630	_post_tick;
2989		3631	};
2990		3632	$TICK_WATCHER->priority (EV::MAXPRI);
2991	},
2992	);
2993		3633
2994	{	3634	{
2995	BDB::max_poll_time $TICK * 0.1;	3635	# configure BDB
2996	$BDB_POLL_WATCHER = Event->io (	3636
2997	reentrant => 0,
2998	fd => BDB::poll_fileno,
2999	poll => 'r',
3000	prio => 0,
3001	data => WF_AUTOCANCEL,
3002	cb => \&BDB::poll_cb,
3003	);
3004	BDB::min_parallel 8;	3637	BDB::min_parallel 8;
3005		3638	BDB::max_poll_reqs $TICK * 0.1;
3006	BDB::set_sync_prepare {
3007	my $status;
3008	my $current = $Coro::current;
3009	(
3010	sub {
3011	$status = $!;
3012	$current->ready; undef $current;
3013	},
3014	sub {
3015	Coro::schedule while defined $current;
3016	$! = $status;
3017	},
3018	)
3019	};
3020		3639
3021	unless ($DB_ENV) {	3640	unless ($DB_ENV) {
3022	$DB_ENV = BDB::db_env_create;	3641	$DB_ENV = BDB::db_env_create;
		3642	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3643	| BDB::LOG_AUTOREMOVE, 1);
		3644	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3645	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3023		3646
3024	cf::sync_job {	3647	cf::sync_job {
3025	eval {	3648	eval {
3026	BDB::db_env_open	3649	BDB::db_env_open
3027	$DB_ENV,	3650	$DB_ENV,
…		…
3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3652	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3653	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3031	0666;	3654	0666;
3032		3655
3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3656	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3034
3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3036	$DB_ENV->set_lk_detect;
3037	};	3657	};
3038		3658
3039	cf::cleanup "db_env_open(db): $@" if $@;	3659	cf::cleanup "db_env_open(db): $@" if $@;
3040	};	3660	};
3041	}	3661	}
		3662
		3663	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3664	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3665	};
		3666	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3667	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3668	};
		3669	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3670	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3671	};
3042	}	3672	}
3043		3673
3044	{	3674	{
		3675	# configure IO::AIO
		3676
3045	IO::AIO::min_parallel 8;	3677	IO::AIO::min_parallel 8;
3046
3047	undef $Coro::AIO::WATCHER;
3048	IO::AIO::max_poll_time $TICK * 0.1;	3678	IO::AIO::max_poll_time $TICK * 0.1;
3049	$AIO_POLL_WATCHER = Event->io (
3050	reentrant => 0,
3051	data => WF_AUTOCANCEL,
3052	fd => IO::AIO::poll_fileno,
3053	poll => 'r',
3054	prio => 6,
3055	cb => \&IO::AIO::poll_cb,
3056	);
3057	}	3679	}
3058		3680
3059	my $_log_backtrace;	3681	my $_log_backtrace;
3060		3682
3061	sub _log_backtrace {	3683	sub _log_backtrace {
…		…
3065		3687
3066	# limit the # of concurrent backtraces	3688	# limit the # of concurrent backtraces
3067	if ($_log_backtrace < 2) {	3689	if ($_log_backtrace < 2) {
3068	++$_log_backtrace;	3690	++$_log_backtrace;
3069	async {	3691	async {
		3692	$Coro::current->{desc} = "abt $msg";
		3693
3070	my @bt = fork_call {	3694	my @bt = fork_call {
3071	@addr = map { sprintf "%x", $_ } @addr;	3695	@addr = map { sprintf "%x", $_ } @addr;
3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3696	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3697	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3074	or die "addr2line: $!";	3698	or die "addr2line: $!";

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