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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.258 by root, Sat Apr 21 17:43:42 2007 UTC vs.
Revision 1.391 by root, Fri Oct 26 04:22:05 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;
10	use Event;	9	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 4.1 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
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::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.51 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
…		…
76	our $NEXT_TICK;	80	our $NEXT_TICK;
77	our $NOW;	81	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		83
80	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	88	our $DB_ENV;
82		89
83	our %CFG;	90	our %CFG;
84		91
85	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	93	our $RUNTIME;
87		94
88	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
91		98
92	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
94		105
95	binmode STDOUT;	106	binmode STDOUT;
96	binmode STDERR;	107	binmode STDERR;
97		108
98	# read virtual server time, if available	109	# read virtual server time, if available
…		…
139		150
140	=item $cf::TICK	151	=item $cf::TICK
141		152
142	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
143		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
144	=item %cf::CFG	165	=item %cf::CFG
145		166
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	168	from wherever your confdir points to.
148		169
…		…
150		171
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	173	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
		181
155	=back	182	=back
156		183
157	=cut	184	=cut
158		185
159	BEGIN {	186	BEGIN {
…		…
163	$msg .= "\n"	190	$msg .= "\n"
164	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
165		192
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		194
168	utf8::encode $msg;
169	LOG llevError, $msg;	195	LOG llevError, $msg;
170	};	196	};
171	}	197	}
172		198
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		206
180	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	208	# within the Safe compartment.
182	for my $pkg (qw(	209	for my $pkg (qw(
183	cf::global cf::attachable	210	cf::global cf::attachable
…		…
191	}	218	}
192		219
193	$Event::DIED = sub {	220	$Event::DIED = sub {
194	warn "error in event callback: @_";	221	warn "error in event callback: @_";
195	};	222	};
		223
		224	#############################################################################
196		225
197	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
198		227
199	=over 4	228	=over 4
200		229
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	249	$d
221	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
222	}	251	}
223		252
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
227		254
228	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
229		256
230	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
231		258
232	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
		260
		261	=cut
		262
		263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		264
		265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
233		267
234	=item cf::lock_wait $string	268	=item cf::lock_wait $string
235		269
236	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
237		271
…		…
240	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
243	returned.	277	returned.
244		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
245	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
247		284
248	=item $locked = cf::lock_active $string	285	=item $locked = cf::lock_active $string
249		286
250	Return true if the lock is currently active, i.e. somebody has locked it.	287	Return true if the lock is currently active, i.e. somebody has locked it.
251		288
252	=cut	289	=cut
253		290
254	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
255		293
256	sub lock_wait($) {	294	sub lock_wait($) {
257	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
258		301
259	# wait for lock, if any	302	# wait for lock, if any
260	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;	305	Coro::schedule;
…		…
268		311
269	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
270	lock_wait $key;	313	lock_wait $key;
271		314
272	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
273		317
274	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
275	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
277	}	322	}
278	}	323	}
279		324
…		…
291	};	336	};
292	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
293	$guard	338	$guard
294	}	339	}
295		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
296	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
297		400
298	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
300	thing you are allowed to do is call C<prio> on it.	403	thing you are allowed to do is call C<prio> on it.
…		…
303		406
304	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
305		408
306	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
307		410
308	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
311		415
312	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
315	fast or be very important.	419	fast or be very important.
…		…
318		422
319	sub sync_job(&) {	423	sub sync_job(&) {
320	my ($job) = @_;	424	my ($job) = @_;
321		425
322	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
323	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
325		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
326	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	435	# (but this is cancel-safe)
328	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
329		437
330	my $busy = 1;	438	my $busy = 1;
331	my @res;	439	my @res;
332		440
333	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	443	@res = eval { $job->() };
335	warn $@ if $@;	444	warn $@ if $@;
336	undef $busy;	445	undef $busy;
337	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
338		447
339	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
340	Coro::cede or Event::one_event;	452	Event::one_event;
341	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
342		462
343	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
344	} else {	464	} else {
345	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
346		466
…		…
366	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
367		487
368	$coro	488	$coro
369	}	489	}
370		490
371	sub write_runtime {	491	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		492
374	my $runtime = "$LOCALDIR/runtime";	493	Executes the given code block with the given arguments in a seperate
		494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
375		497
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	498	=cut
377	or return;
378		499
379	my $value = $cf::RUNTIME + 90 + 10;	500	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	501	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		502
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	503	# we seemingly have to make a local copy of the whole thing,
384	and return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
385		506
386	# always fsync - this file is important	507	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	508	reset_signals;
388	and return;	509	&$cb
		510	}, @args;
389		511
390	close $fh	512	wantarray ? @res : $res[-1]
391	or return;	513	}
392		514
393	aio_rename "$runtime~", $runtime	515	=item $value = cf::db_get $family => $key
394	and return;
395		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
396	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
397	}	640	}
398		641
399	=item cf::datalog type => key => value, ...	642	=item cf::datalog type => key => value, ...
400		643
401	Log a datalog packet of the given type with the given key-value pairs.	644	Log a datalog packet of the given type with the given key-value pairs.
…		…
419	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
421		664
422	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	667	Crossfire TRT).
425		668
426	=over 4	669	=over 4
427		670
428	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
429		672
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
593		836
594	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		841
599	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	843	my $pkg = shift @arg;
601		844
602	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
632	}	875	}
633		876
634	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
635	} else {	878	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	880	}
638		881
639	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
640	}	883	}
641		884
…		…
643	if (ref $_[0]) {	886	if (ref $_[0]) {
644	_object_attach @_;	887	_object_attach @_;
645	} else {	888	} else {
646	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
647	}	890	}
		891	_recalc_want;
648	};	892	};
649		893
650	# all those should be optimised	894	# all those should be optimised
651	sub cf::attachable::detach {	895	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
656	reattach ($obj);	900	reattach ($obj);
657	} else {	901	} else {
658	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
659	}	903	}
		904	_recalc_want;
660	};	905	};
661		906
662	sub cf::attachable::attached {	907	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
664		909
…		…
679	";	924	";
680	die if $@;	925	die if $@;
681	}	926	}
682		927
683	our $override;	928	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		930
686	sub override {	931	sub override {
687	$override = 1;	932	$override = 1;
688	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
689	}	934	}
690		935
691	sub do_invoke {	936	sub do_invoke {
692	my $event = shift;	937	my $event = shift;
693	my $callbacks = shift;	938	my $callbacks = shift;
694		939
695	@invoke_results = ();	940	@INVOKE_RESULTS = ();
696		941
697	local $override;	942	local $override;
698		943
699	for (@$callbacks) {	944	for (@$callbacks) {
700	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
717		962
718	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
719		964
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		968
724	=back	969	=back
725		970
726	=cut	971	=cut
727		972
728	#############################################################################	973	#############################################################################
729	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
730		1017
731	sub reattach {	1018	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1020	my ($obj) = @_;
734		1021
…		…
781	sub object_freezer_save {	1068	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
783		1070
784	sync_job {	1071	sync_job {
785	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
788		1076
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1080	aio_fsync $fh if $cf::USE_FSYNC;
793	close $fh;	1081	close $fh;
794		1082
795	if (@$objs) {	1083	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1088	aio_fsync $fh if $cf::USE_FSYNC;
801	close $fh;	1089	close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
803	}	1091	}
…		…
811	}	1099	}
812	} else {	1100	} else {
813	aio_unlink $filename;	1101	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
815	}	1103	}
816	}	1104	};
817	}	1105	}
818		1106
819	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
821		1109
…		…
833	or return;	1121	or return;
834		1122
835	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
837	or return;	1125	or return;
		1126
838	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
839	}	1129	}
840		1130
		1131	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
843	return ($data, $av);	1135	($data, $av)
844	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
845		1143
846	#############################################################################	1144	#############################################################################
847	# command handling &c	1145	# command handling &c
848		1146
849	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1161	}
864		1162
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1164
867	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
868		1170
869	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
870	called.	1172	called.
871		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
872	=cut	1185	=cut
873		1186
874	sub register_extcmd {	1187	sub register_extcmd {
875	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
876		1189
877	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
878	}	1197	}
879		1198
880	cf::player->attach (	1199	cf::player->attach (
881	on_command => sub {	1200	on_command => sub {
882	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1210	cf::override;
892	},	1211	},
893	on_extcmd => sub {	1212	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
895		1214
896	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1216
898	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
904	} else {	1232	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1234	}
907		1235
908	cf::override;	1236	cf::override;
909	},	1237	},
910	);	1238	);
911		1239
912	sub load_extension {
913	my ($path) = @_;
914
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
916	my $base = $1;
917	my $pkg = $1;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}
940	die $@;
941	}
942
943	push @EXTS, $pkg;
944	}
945
946	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
947	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1245	next unless -r $path;
949	eval {	1246
950	load_extension $ext;	1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
951	1	1304	}
952	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
953	}	1310	};
954	}	1311	}
955		1312
956	#############################################################################	1313	#############################################################################
957		1314
		1315	=back
		1316
958	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
959		1318
960	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
961		1320
962	=cut	1321	=cut
…		…
966	use Coro::AIO;	1325	use Coro::AIO;
967		1326
968	=head3 cf::player	1327	=head3 cf::player
969		1328
970	=over 4	1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
971		1344
972	=item cf::player::find $login	1345	=item cf::player::find $login
973		1346
974	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
975		1348
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1387	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1388
1016	my $pl = load_pl path $login	1389	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1019	}	1397	}
1020	}	1398	}
1021	}	1399	}
1022		1400
…		…
1032		1410
1033	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1035		1413
1036	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1037	Coro::cede;	1415	cf::cede_to_tick;
1038	}	1416	}
1039		1417
1040	sub new($) {	1418	sub new($) {
1041	my ($login) = @_;	1419	my ($login) = @_;
1042		1420
…		…
1046	$self->{deny_save} = 1;	1424	$self->{deny_save} = 1;
1047		1425
1048	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1049		1427
1050	$self	1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
1051	}	1439	}
1052		1440
1053	=item $pl->quit_character	1441	=item $pl->quit_character
1054		1442
1055	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
…		…
1110	or return [];	1498	or return [];
1111		1499
1112	my @logins;	1500	my @logins;
1113		1501
1114	for my $login (@$dirs) {	1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1118		1511
1119	utf8::decode $login;	1512	utf8::decode $login;
1120	push @logins, $login;	1513	push @logins, $login;
1121	}	1514	}
1122		1515
…		…
1149	}	1542	}
1150		1543
1151	\@paths	1544	\@paths
1152	}	1545	}
1153		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	(?:
		1558	\ (.*?)\ (?{ $group = $^N })
		1559	| < (??{$interior}) >
		1560	)
		1561	}x;
		1562
		1563	sub expand_cfpod {
		1564	my ($self, $pod) = @_;
		1565
		1566	my $xml;
		1567
		1568	while () {
		1569	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?=[^<]) )+ )/xgcs) {
		1570	$group = $1;
		1571
		1572	$group =~ s/&/&amp;/g;
		1573	$group =~ s/</&lt;/g;
		1574
		1575	$xml .= $group;
		1576	} elsif ($pod =~ m%\G
		1577	([BCGHITU])
		1578	<
		1579	(?:
		1580	([^<>]*) (?{ $group = $^N })
		1581	| < $interior >
		1582	)
		1583	>
		1584	%gcsx
		1585	) {
		1586	my ($code, $data) = ($1, $group);
		1587
		1588	if ($code eq "B") {
		1589	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1590	} elsif ($code eq "I") {
		1591	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1592	} elsif ($code eq "U") {
		1593	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1594	} elsif ($code eq "C") {
		1595	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1596	} elsif ($code eq "T") {
		1597	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1598	} elsif ($code eq "G") {
		1599	my ($male, $female) = split /\|/, $data;
		1600	$data = $self->gender ? $female : $male;
		1601	$xml .= expand_cfpod ($self, $data);
		1602	} elsif ($code eq "H") {
		1603	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1604	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1605	"")
		1606	[$self->{hintmode}];
		1607	} else {
		1608	$xml .= "error processing '$code($data)' directive";
		1609	}
		1610	} else {
		1611	if ($pod =~ /\G(.+)/) {
		1612	warn "parse error while expanding $pod (at $1)";
		1613	}
		1614	last;
		1615	}
		1616	}
		1617
		1618	for ($xml) {
		1619	# create single paragraphs (very hackish)
		1620	s/(?<=\S)\n(?=\w)/ /g;
		1621
		1622	# compress some whitespace
		1623	s/\s+\n/\n/g; # ws line-ends
		1624	s/\n\n+/\n/g; # double lines
		1625	s/^\n+//; # beginning lines
		1626	s/\n+$//; # ending lines
		1627	}
		1628
		1629	$xml
		1630	}
		1631
		1632	sub hintmode {
		1633	$_[0]{hintmode} = $_[1] if @_ > 1;
		1634	$_[0]{hintmode}
		1635	}
		1636
1154	=item $player->ext_reply ($msgid, %msg)	1637	=item $player->ext_reply ($msgid, @msg)
1155		1638
1156	Sends an ext reply to the player.	1639	Sends an ext reply to the player.
1157		1640
1158	=cut	1641	=cut
1159		1642
1160	sub ext_reply($$%) {	1643	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1644	my ($self, $id, @msg) = @_;
1162		1645
1163	$msg{msgid} = $id;	1646	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1647	}
1167		1648
1168	=item $player->ext_event ($type, %msg)	1649	=item $player->ext_msg ($type, @msg)
1169		1650
1170	Sends an ext event to the client.	1651	Sends an ext event to the client.
1171		1652
1172	=cut	1653	=cut
1173		1654
1174	sub ext_event($$%) {	1655	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1656	my ($self, $type, @msg) = @_;
1176		1657
1177	$self->ns->ext_event ($type, %msg);	1658	$self->ns->ext_msg ($type, @msg);
1178	}	1659	}
1179		1660
1180	=head3 cf::region	1661	=head3 cf::region
1181		1662
1182	=over 4	1663	=over 4
…		…
1185		1666
1186	package cf::region;	1667	package cf::region;
1187		1668
1188	=item cf::region::find_by_path $path	1669	=item cf::region::find_by_path $path
1189		1670
1190	Tries to decuce the probable region for a map knowing only its path.	1671	Tries to decuce the likely region for a map knowing only its path.
1191		1672
1192	=cut	1673	=cut
1193		1674
1194	sub find_by_path($) {	1675	sub find_by_path($) {
1195	my ($path) = @_;	1676	my ($path) = @_;
1196		1677
1197	my ($match, $specificity);	1678	my ($match, $specificity);
1198		1679
1199	for my $region (list) {	1680	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1681	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1682	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1683	if $region->specificity > $specificity;
1203	}	1684	}
1204	}	1685	}
1205		1686
…		…
1269	my ($self, $merge) = @_;	1750	my ($self, $merge) = @_;
1270		1751
1271	# we have to keep some variables in memory intact	1752	# we have to keep some variables in memory intact
1272	local $self->{path};	1753	local $self->{path};
1273	local $self->{load_path};	1754	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1755
1277	$self->SUPER::thawer_merge ($merge);	1756	$self->SUPER::thawer_merge ($merge);
1278	}	1757	}
1279		1758
1280	sub normalise {	1759	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1806	$self->init; # pass $1 etc.
1328	return $self;	1807	return $self;
1329	}	1808	}
1330	}	1809	}
1331		1810
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1812	()
1334	}	1813	}
1335		1814
1336	sub init {	1815	sub init {
1337	my ($self) = @_;	1816	my ($self) = @_;
…		…
1380		1859
1381	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1383	}	1862	}
1384		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
1385	sub unlink_save {	1872	sub unlink_save {
1386	my ($self) = @_;	1873	my ($self) = @_;
1387		1874
1388	utf8::encode (my $save = $self->save_path);	1875	utf8::encode (my $save = $self->save_path);
1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1392		1879
1393	sub load_header_from($) {	1880	sub load_header_from($) {
1394	my ($self, $path) = @_;	1881	my ($self, $path) = @_;
1395		1882
1396	utf8::encode $path;	1883	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1885	or return;
		1886
		1887	$self->_load_header ($f)
		1888	or return;
		1889
		1890	local $MAP_LOADING{$self->{path}} = $self;
		1891	$f->resolve_delayed_derefs;
1402		1892
1403	$self->{load_path} = $path;	1893	$self->{load_path} = $path;
1404		1894
1405	1	1895	1
1406	}	1896	}
…		…
1445	$self->load_header_orig	1935	$self->load_header_orig
1446	or return;	1936	or return;
1447	$self->prepare_orig;	1937	$self->prepare_orig;
1448	}	1938	}
1449		1939
		1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
		1942
1450	$self->default_region (cf::region::find_by_path $self->{path})	1943	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1944	unless $self->default_region;
1452		1945
1453	1	1946	1
1454	}	1947	}
…		…
1457	sub find {	1950	sub find {
1458	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1459		1952
1460	$path = normalise $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1461		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1956	cf::lock_wait "map_find:$path";
1463		1957
1464	$cf::MAP{$path} || do {	1958	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";	1959	my $guard1 = cf::lock_acquire "map_find:$path";
		1960	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1961
1466	my $map = new_from_path cf::map $path	1962	my $map = new_from_path cf::map $path
1467	or return;	1963	or return;
1468		1964
1469	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1470		1966
1471	$map->load_header	1967	$map->load_header
1472	or return;	1968	or return;
1473		1969
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1971	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard1;
		1974	undef $guard2;
1477	$map->reset;	1975	$map->reset;
1478	undef $guard;
1479	return find $path;	1976	return find $path;
1480	}	1977	}
1481		1978
1482	$cf::MAP{$path} = $map	1979	$cf::MAP{$path} = $map
1483	}	1980	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	1989	local $self->{deny_reset} = 1; # loading can take a long time
1493		1990
1494	my $path = $self->{path};	1991	my $path = $self->{path};
1495		1992
1496	{	1993	{
1497	my $guard = cf::lock_acquire "map_load:$path";	1994	my $guard = cf::lock_acquire "map_data:$path";
1498		1995
		1996	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		1998
1501	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1502		2000
1503	$self->alloc;	2001	$self->alloc;
1504		2002
1505	$self->pre_load;	2003	$self->pre_load;
1506	Coro::cede;	2004	cf::cede_to_tick;
1507		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2008	$self->_load_objects ($f)
1509	or return;	2009	or return;
1510		2010
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1512	if delete $self->{load_original};	2012	if delete $self->{load_original};
1513		2013
1514	if (my $uniq = $self->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2015	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2018	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1519	}	2022	}
1520	}	2023	}
1521		2024
1522	Coro::cede;	2025	$f->resolve_delayed_derefs;
		2026
		2027	cf::cede_to_tick;
1523	# now do the right thing for maps	2028	# now do the right thing for maps
1524	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2031	unless $self->difficulty;
1527	Coro::cede;	2032	cf::cede_to_tick;
1528		2033
1529	unless ($self->{deny_activate}) {	2034	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2035	$self->decay_objects;
1531	$self->fix_auto_apply;	2036	$self->fix_auto_apply;
1532	$self->update_buttons;	2037	$self->update_buttons;
1533	Coro::cede;	2038	cf::cede_to_tick;
1534	$self->set_darkness_map;	2039	$self->set_darkness_map;
1535	Coro::cede;	2040	cf::cede_to_tick;
1536	$self->activate;	2041	$self->activate;
1537	}	2042	}
		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1538		2046
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_IN_MEMORY);
1540	}	2048	}
1541		2049
1542	$self->post_load;	2050	$self->post_load;
…		…
1546	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1547		2055
1548	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2057	if $self->per_player;
1550		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1551	$self	2062	$self
1552	}	2063	}
1553		2064
1554	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2066	sub load_neighbours {
1556	my ($map) = @_;	2067	my ($map) = @_;
1557		2068
1558	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1559		2070
1560	for (0 .. 3) {	2071	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1562	or next;	2073	or next;
1563	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1564	or next;	2075	or next;
1565	$neigh->load;	2076	$neigh->load;
1566		2077
		2078	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2081	}
1570		2082
1571	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1573	or next;	2086	or next;
1574	$neigh->load;	2087	$neigh->load;
1575	}	2088	}
1576	}	2089	}
1577		2090
…		…
1582	}	2095	}
1583		2096
1584	sub do_load_sync {	2097	sub do_load_sync {
1585	my ($map) = @_;	2098	my ($map) = @_;
1586		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1587	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1588	}	2104	}
1589		2105
1590	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2107	our $MAP_PREFETCHER = undef;
1592		2108
1593	sub find_async {	2109	sub find_async {
1594	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1595		2111
1596	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1597		2113
1598	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2115	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1600	}	2116	}
1601		2117
1602	undef $MAP_PREFETCH{$path};	2118	$MAP_PREFETCH{$path} |= $load;
		2119
1603	$MAP_PREFETCHER ||= cf::async {	2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
1604	while (%MAP_PREFETCH) {	2123	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2124	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2125	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2126	$map->load if $v;
		2127	}
1609		2128
1610	delete $MAP_PREFETCH{$path};	2129	delete $MAP_PREFETCH{$k};
1611	}	2130	}
1612	}	2131	}
1613	undef $MAP_PREFETCHER;	2132	undef $MAP_PREFETCHER;
1614	};	2133	};
1615	$MAP_PREFETCHER->prio (6);	2134	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2137	}
1619		2138
1620	sub save {	2139	sub save {
1621	my ($self) = @_;	2140	my ($self) = @_;
1622		2141
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2143
1625	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1626		2145
1627	return unless $self->dirty;	2146	return unless $self->dirty;
1628		2147
…		…
1634	return if $self->{deny_save};	2153	return if $self->{deny_save};
1635		2154
1636	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1637		2156
1638	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1640	};	2160	};
1641		2161
1642	if ($uniq) {	2162	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1651	my ($self) = @_;	2171	my ($self) = @_;
1652		2172
1653	# save first because save cedes	2173	# save first because save cedes
1654	$self->save;	2174	$self->save;
1655		2175
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2177
1658	return if $self->players;	2178	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_IN_MEMORY;
1660	return if $self->{deny_save};	2180	return if $self->{deny_save};
1661		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2186	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2187	}
1665		2188
1666	sub reset_at {	2189	sub reset_at {
1667	my ($self) = @_;	2190	my ($self) = @_;
1668		2191
1669	# TODO: safety, remove and allow resettable per-player maps	2192	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2193	return 1e99 if $self->{deny_reset};
1672		2194
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2197
…		…
1686	my ($self) = @_;	2208	my ($self) = @_;
1687		2209
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2211
1690	return if $self->players;	2212	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2213
1693	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
1694		2215
1695	$self->in_memory (cf::MAP_SWAPPED);	2216	$self->in_memory (cf::MAP_SWAPPED);
1696		2217
1697	# need to save uniques path	2218	# need to save uniques path
1698	unless ($self->{deny_save}) {	2219	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2223	if $uniq;
1703	}	2224	}
1704		2225
1705	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1706		2227
		2228	$self->deactivate;
		2229	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2230	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2231
1711	$self->unlink_save;	2232	$self->unlink_save;
1712	$self->destroy;	2233	$self->destroy;
1713	}	2234	}
1714		2235
1715	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1716		2237
1717	sub nuke {	2238	sub nuke {
1718	my ($self) = @_;	2239	my ($self) = @_;
1719		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
1720	delete $cf::MAP{$self->path};	2244	delete $cf::MAP{$self->path};
1721		2245
1722	$self->unlink_save;	2246	$self->unlink_save;
1723		2247
1724	bless $self, "cf::map";	2248	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2249	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2253
1730	$cf::MAP{$self->path} = $self;	2254	$cf::MAP{$self->path} = $self;
		2255	}
1731		2256
1732	$self->reset; # polite request, might not happen	2257	$self->reset; # polite request, might not happen
		2258	}
		2259
		2260	=item $maps = cf::map::tmp_maps
		2261
		2262	Returns an arrayref with all map paths of currently instantiated and saved
		2263	maps. May block.
		2264
		2265	=cut
		2266
		2267	sub tmp_maps() {
		2268	[
		2269	map {
		2270	utf8::decode $_;
		2271	/\.map$/
		2272	? normalise $_
		2273	: ()
		2274	} @{ aio_readdir $TMPDIR or [] }
		2275	]
		2276	}
		2277
		2278	=item $maps = cf::map::random_maps
		2279
		2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	random maps. May block.
		2282
		2283	=cut
		2284
		2285	sub random_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise "?random/$_"
		2291	: ()
		2292	} @{ aio_readdir $RANDOMDIR or [] }
		2293	]
1733	}	2294	}
1734		2295
1735	=item cf::map::unique_maps	2296	=item cf::map::unique_maps
1736		2297
1737	Returns an arrayref of paths of all shared maps that have	2298	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2299	instantiated unique items. May block.
1739		2300
1740	=cut	2301	=cut
1741		2302
1742	sub unique_maps() {	2303	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2304	[
1744	or return;	2305	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2306	utf8::decode $_;
1750	next if /\.pst$/;	2307	/\.map$/
1751	next unless /^$PATH_SEP/o;	2308	? normalise $_
1752		2309	: ()
1753	push @paths, cf::map::normalise $_;	2310	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2311	]
1755
1756	\@paths
1757	}	2312	}
1758		2313
1759	package cf;	2314	package cf;
1760		2315
1761	=back	2316	=back
…		…
1779	map { $_, inv_recursive_ $_->inv } @_	2334	map { $_, inv_recursive_ $_->inv } @_
1780	}	2335	}
1781		2336
1782	sub inv_recursive {	2337	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2338	inv_recursive_ inv $_[0]
		2339	}
		2340
		2341	=item $ref = $ob->ref
		2342
		2343	creates and returns a persistent reference to an objetc that can be stored as a string.
		2344
		2345	=item $ob = cf::object::deref ($refstring)
		2346
		2347	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2348	even if the object actually exists. May block.
		2349
		2350	=cut
		2351
		2352	sub deref {
		2353	my ($ref) = @_;
		2354
		2355	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2356	my ($uuid, $name) = ($1, $2);
		2357	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2358	or return;
		2359	$pl->ob->uuid eq $uuid
		2360	or return;
		2361
		2362	$pl->ob
		2363	} else {
		2364	warn "$ref: cannot resolve object reference\n";
		2365	undef
		2366	}
1784	}	2367	}
1785		2368
1786	package cf;	2369	package cf;
1787		2370
1788	=back	2371	=back
…		…
1807		2390
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2391	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2392
1810	if ($self->{record_replies}) {	2393	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2394	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2395
1812	} else {	2396	} else {
		2397	my $pl = $self->contr;
		2398
		2399	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2400	my $dialog = $pl->{npc_dialog};
		2401	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2402
		2403	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2404	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2405	$self->message ($msg, $flags);
		2406	}
1815	}	2407	}
		2408	}
		2409
		2410	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2411
		2412	=cut
		2413
		2414	sub cf::object::send_msg {
		2415	my $pl = shift->contr
		2416	or return;
		2417	$pl->send_msg (@_);
1816	}	2418	}
1817		2419
1818	=item $player_object->may ("access")	2420	=item $player_object->may ("access")
1819		2421
1820	Returns wether the given player is authorized to access resource "access"	2422	Returns wether the given player is authorized to access resource "access"
…		…
1862	}	2464	}
1863		2465
1864	sub cf::object::player::enter_link {	2466	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2467	my ($self) = @_;
1866		2468
1867	$self->activate_recursive;	2469	$self->deactivate_recursive;
1868		2470
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2471	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2472
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2473	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2474	if $self->map && $self->map->{path} ne "{link}";
1873		2475
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2476	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2477	}
1876		2478
1877	sub cf::object::player::leave_link {	2479	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2480	my ($self, $map, $x, $y) = @_;
		2481
		2482	return unless $self->contr->active;
1879		2483
1880	my $link_pos = delete $self->{_link_pos};	2484	my $link_pos = delete $self->{_link_pos};
1881		2485
1882	unless ($map) {	2486	unless ($map) {
1883	# restore original map position	2487	# restore original map position
…		…
1897	# use -1 or undef as default coordinates, not 0, 0	2501	# use -1 or undef as default coordinates, not 0, 0
1898	($x, $y) = ($map->enter_x, $map->enter_y)	2502	($x, $y) = ($map->enter_x, $map->enter_y)
1899	if $x <=0 && $y <= 0;	2503	if $x <=0 && $y <= 0;
1900		2504
1901	$map->load;	2505	$map->load;
1902	$map->load_diag;	2506	$map->load_neighbours;
1903		2507
1904	return unless $self->contr->active;	2508	return unless $self->contr->active;
1905	$self->activate_recursive;	2509	$self->activate_recursive;
1906		2510
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2511	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2512	$self->enter_map ($map, $x, $y);
1909	}	2513	}
1910		2514
1911	cf::player->attach (	2515	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1912	on_logout => sub {
1913	my ($pl) = @_;
1914		2516
1915	# abort map switching before logout	2517	Moves the player to the given map-path and coordinates by first freezing
1916	if ($pl->ob->{_link_pos}) {	2518	her, loading and preparing them map, calling the provided $check callback
1917	cf::sync_job {	2519	that has to return the map if sucecssful, and then unfreezes the player on
1918	$pl->ob->leave_link	2520	the new (success) or old (failed) map position. In either case, $done will
1919	};	2521	be called at the end of this process.
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2522
1925	# try to abort aborted map switching on player login :)
1926	# should happen only on crashes
1927	if ($pl->ob->{_link_pos}) {
1928	$pl->ob->enter_link;
1929	(async {
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942
1943	=item $player_object->goto ($path, $x, $y)
1944
1945	=cut	2523	=cut
		2524
		2525	our $GOTOGEN;
1946		2526
1947	sub cf::object::player::goto {	2527	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2528	my ($self, $path, $x, $y, $check, $done) = @_;
		2529
		2530	# do generation counting so two concurrent goto's will be executed in-order
		2531	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2532
1950	$self->enter_link;	2533	$self->enter_link;
1951		2534
1952	(async {	2535	(async {
		2536	$Coro::current->{desc} = "player::goto $path $x $y";
		2537
		2538	# *tag paths override both path and x|y
		2539	if ($path =~ /^\*(.*)$/) {
		2540	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2541	my $ob = $obs[rand @obs];
		2542
		2543	# see if we actually can go there
		2544	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2545	$ob = $obs[rand @obs];
		2546	} else {
		2547	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2548	}
		2549	# else put us there anyways for now #d#
		2550
		2551	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2552	} else {
		2553	($path, $x, $y) = (undef, undef, undef);
		2554	}
		2555	}
		2556
1953	my $map = eval {	2557	my $map = eval {
1954	my $map = cf::map::find $path;	2558	my $map = defined $path ? cf::map::find $path : undef;
		2559
		2560	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2561	$map = $map->customise_for ($self);
		2562	$map = $check->($map) if $check && $map;
		2563	} else {
		2564	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566
1956	$map	2567	$map
		2568	};
		2569
		2570	if ($@) {
		2571	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2573	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2574
		2575	if ($gen == $self->{_goto_generation}) {
		2576	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2577	$self->leave_link ($map, $x, $y);
		2578	}
		2579
		2580	$done->() if $done;
1961	})->prio (1);	2581	})->prio (1);
1962	}	2582	}
1963		2583
1964	=item $player_object->enter_exit ($exit_object)	2584	=item $player_object->enter_exit ($exit_object)
1965		2585
…		…
2034	my $hp = $exit->stats->hp;	2654	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;	2655	my $sp = $exit->stats->sp;
2036		2656
2037	$self->enter_link;	2657	$self->enter_link;
2038		2658
		2659	# if exit is damned, update players death & WoR home-position
		2660	$self->contr->savebed ($slaying, $hp, $sp)
		2661	if $exit->flag (FLAG_DAMNED);
		2662
2039	(async {	2663	(async {
		2664	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2665
2040	$self->deactivate_recursive; # just to be sure	2666	$self->deactivate_recursive; # just to be sure
2041	unless (eval {	2667	unless (eval {
2042	$self->goto ($slaying, $hp, $sp);	2668	$self->goto ($slaying, $hp, $sp);
2043		2669
2044	1;	2670	1;
…		…
2070		2696
2071	utf8::encode $text;	2697	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2698	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2699	}
2074		2700
		2701	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2702
		2703	Send a drawinfo or msg packet to the client, formatting the msg for the
		2704	client if neccessary. C<$type> should be a string identifying the type of
		2705	the message, with C<log> being the default. If C<$color> is negative, suppress
		2706	the message unless the client supports the msg packet.
		2707
		2708	=cut
		2709
		2710	# non-persistent channels (usually the info channel)
		2711	our %CHANNEL = (
		2712	"c/identify" => {
		2713	id => "infobox",
		2714	title => "Identify",
		2715	reply => undef,
		2716	tooltip => "Items recently identified",
		2717	},
		2718	"c/examine" => {
		2719	id => "infobox",
		2720	title => "Examine",
		2721	reply => undef,
		2722	tooltip => "Signs and other items you examined",
		2723	},
		2724	"c/book" => {
		2725	id => "infobox",
		2726	title => "Book",
		2727	reply => undef,
		2728	tooltip => "The contents of a note or book",
		2729	},
		2730	"c/lookat" => {
		2731	id => "infobox",
		2732	title => "Look",
		2733	reply => undef,
		2734	tooltip => "What you saw there",
		2735	},
		2736	"c/who" => {
		2737	id => "infobox",
		2738	title => "Players",
		2739	reply => undef,
		2740	tooltip => "Shows players who are currently online",
		2741	},
		2742	"c/body" => {
		2743	id => "infobox",
		2744	title => "Body Parts",
		2745	reply => undef,
		2746	tooltip => "Shows which body parts you posess and are available",
		2747	},
		2748	"c/uptime" => {
		2749	id => "infobox",
		2750	title => "Uptime",
		2751	reply => undef,
		2752	tooltip => "How long the server has been running since last restart",
		2753	},
		2754	"c/mapinfo" => {
		2755	id => "infobox",
		2756	title => "Map Info",
		2757	reply => undef,
		2758	tooltip => "Information related to the maps",
		2759	},
		2760	);
		2761
		2762	sub cf::client::send_msg {
		2763	my ($self, $channel, $msg, $color, @extra) = @_;
		2764
		2765	$msg = $self->pl->expand_cfpod ($msg);
		2766
		2767	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2768
		2769	# check predefined channels, for the benefit of C
		2770	if ($CHANNEL{$channel}) {
		2771	$channel = $CHANNEL{$channel};
		2772
		2773	$self->ext_msg (channel_info => $channel)
		2774	if $self->can_msg;
		2775
		2776	$channel = $channel->{id};
		2777
		2778	} elsif (ref $channel) {
		2779	# send meta info to client, if not yet sent
		2780	unless (exists $self->{channel}{$channel->{id}}) {
		2781	$self->{channel}{$channel->{id}} = $channel;
		2782	$self->ext_msg (channel_info => $channel)
		2783	if $self->can_msg;
		2784	}
		2785
		2786	$channel = $channel->{id};
		2787	}
		2788
		2789	return unless @extra || length $msg;
		2790
		2791	if ($self->can_msg) {
		2792	# default colour, mask it out
		2793	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2794	if $color & cf::NDI_DEF;
		2795
		2796	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2797	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2798	} else {
		2799	if ($color >= 0) {
		2800	# replace some tags by gcfclient-compatible ones
		2801	for ($msg) {
		2802	1 while
		2803	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2804	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2805	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2806	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2807	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2808	}
		2809
		2810	$color &= cf::NDI_COLOR_MASK;
		2811
		2812	utf8::encode $msg;
		2813
		2814	if (0 && $msg =~ /\[/) {
		2815	# COMMAND/INFO
		2816	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2817	} else {
		2818	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2819	$self->send_packet ("drawinfo $color $msg")
		2820	}
		2821	}
		2822	}
		2823	}
		2824
2075	=item $client->ext_event ($type, %msg)	2825	=item $client->ext_msg ($type, @msg)
2076		2826
2077	Sends an exti event to the client.	2827	Sends an ext event to the client.
2078		2828
2079	=cut	2829	=cut
2080		2830
2081	sub cf::client::ext_event($$%) {	2831	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	2832	my ($self, $type, @msg) = @_;
2083		2833
		2834	if ($self->extcmd == 2) {
		2835	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2836	} elsif ($self->extcmd == 1) { # TODO: remove
2084	$msg{msgtype} = "event_$type";	2837	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2838	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2839	}
		2840	}
		2841
		2842	=item $client->ext_reply ($msgid, @msg)
		2843
		2844	Sends an ext reply to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_reply($$@) {
		2849	my ($self, $id, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2853	} elsif ($self->extcmd == 1) {
		2854	#TODO: version 1, remove
		2855	unshift @msg, msgtype => "reply", msgid => $id;
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
2086	}	2858	}
2087		2859
2088	=item $success = $client->query ($flags, "text", \&cb)	2860	=item $success = $client->query ($flags, "text", \&cb)
2089		2861
2090	Queues a query to the client, calling the given callback with	2862	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2863	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2864	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2865
2094	Queries can fail, so check the return code. Or don't, as queries will become	2866	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	2867	become reliable at some point in the future.
2096		2868
2097	=cut	2869	=cut
2098		2870
2099	sub cf::client::query {	2871	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2872	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2880	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2881	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2882
2111	$self->send_packet ($self->{query_queue}[0][0])	2883	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2884	if @{ $self->{query_queue} } == 1;
		2885
		2886	1
2113	}	2887	}
2114		2888
2115	cf::client->attach (	2889	cf::client->attach (
		2890	on_connect => sub {
		2891	my ($ns) = @_;
		2892
		2893	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2894	},
2116	on_reply => sub {	2895	on_reply => sub {
2117	my ($ns, $msg) = @_;	2896	my ($ns, $msg) = @_;
2118		2897
2119	# this weird shuffling is so that direct followup queries	2898	# this weird shuffling is so that direct followup queries
2120	# get handled first	2899	# get handled first
…		…
2132	} else {	2911	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2912	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	2913	}
2135	}	2914	}
2136	},	2915	},
		2916	on_exticmd => sub {
		2917	my ($ns, $buf) = @_;
		2918
		2919	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2920
		2921	if (ref $msg) {
		2922	my ($type, $reply, @payload) =
		2923	"ARRAY" eq ref $msg
		2924	? @$msg
		2925	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2926
		2927	my @reply;
		2928
		2929	if (my $cb = $EXTICMD{$type}) {
		2930	@reply = $cb->($ns, @payload);
		2931	}
		2932
		2933	$ns->ext_reply ($reply, @reply)
		2934	if $reply;
		2935
		2936	} else {
		2937	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2938	}
		2939
		2940	cf::override;
		2941	},
2137	);	2942	);
2138		2943
2139	=item $client->async (\&cb)	2944	=item $client->async (\&cb)
2140		2945
2141	Create a new coroutine, running the specified callback. The coroutine will	2946	Create a new coroutine, running the specified callback. The coroutine will
…		…
2182	our $safe = new Safe "safe";	2987	our $safe = new Safe "safe";
2183	our $safe_hole = new Safe::Hole;	2988	our $safe_hole = new Safe::Hole;
2184		2989
2185	$SIG{FPE} = 'IGNORE';	2990	$SIG{FPE} = 'IGNORE';
2186		2991
2187	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2992	$safe->permit_only (Opcode::opset qw(
		2993	:base_core :base_mem :base_orig :base_math
		2994	grepstart grepwhile mapstart mapwhile
		2995	sort time
		2996	));
2188		2997
2189	# here we export the classes and methods available to script code	2998	# here we export the classes and methods available to script code
2190		2999
2191	=pod	3000	=pod
2192		3001
2193	The following functions and methods are available within a safe environment:	3002	The following functions and methods are available within a safe environment:
2194		3003
2195	cf::object contr pay_amount pay_player map	3004	cf::object
		3005	contr pay_amount pay_player map x y force_find force_add destroy
		3006	insert remove name archname title slaying race decrease_ob_nr
		3007
2196	cf::object::player player	3008	cf::object::player
2197	cf::player peaceful	3009	player
2198	cf::map trigger	3010
		3011	cf::player
		3012	peaceful
		3013
		3014	cf::map
		3015	trigger
2199		3016
2200	=cut	3017	=cut
2201		3018
2202	for (	3019	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	3020	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3021	insert remove inv name archname title slaying race
		3022	decrease_ob_nr destroy)],
2204	["cf::object::player" => qw(player)],	3023	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	3024	["cf::player" => qw(peaceful)],
2206	["cf::map" => qw(trigger)],	3025	["cf::map" => qw(trigger)],
2207	) {	3026	) {
2208	no strict 'refs';	3027	no strict 'refs';
…		…
2279	=back	3098	=back
2280		3099
2281	=cut	3100	=cut
2282		3101
2283	#############################################################################	3102	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	local $SIG{__WARN__};
2441	eval {
2442	local $SIG{__DIE__};
2443	close $fh1;
2444
2445	my @res = eval { $cb->(@args) };
2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447	};
2448
2449	warn $@ if $@;
2450	_exit 0;
2451	}
2452	}
2453
2454
2455
2456	#############################################################################
2457	# the server's init and main functions	3103	# the server's init and main functions
2458		3104
2459	sub load_facedata($) {	3105	sub load_facedata($) {
2460	my ($path) = @_;	3106	my ($path) = @_;
		3107
		3108	# HACK to clear player env face cache, we need some signal framework
		3109	# for this (global event?)
		3110	%ext::player_env::MUSIC_FACE_CACHE = ();
		3111
		3112	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2461		3113
2462	warn "loading facedata from $path\n";	3114	warn "loading facedata from $path\n";
2463		3115
2464	my $facedata;	3116	my $facedata;
2465	0 < aio_load $path, $facedata	3117	0 < aio_load $path, $facedata
…		…
2468	$facedata = Coro::Storable::thaw $facedata;	3120	$facedata = Coro::Storable::thaw $facedata;
2469		3121
2470	$facedata->{version} == 2	3122	$facedata->{version} == 2
2471	or cf::cleanup "$path: version mismatch, cannot proceed.";	3123	or cf::cleanup "$path: version mismatch, cannot proceed.";
2472		3124
		3125	# patch in the exptable
		3126	$facedata->{resource}{"res/exp_table"} = {
		3127	type => FT_RSRC,
		3128	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3129	};
		3130	cf::cede_to_tick;
		3131
2473	{	3132	{
2474	my $faces = $facedata->{faceinfo};	3133	my $faces = $facedata->{faceinfo};
2475		3134
2476	while (my ($face, $info) = each %$faces) {	3135	while (my ($face, $info) = each %$faces) {
2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3136	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3137	cf::face::set_visibility $idx, $info->{visibility};
		3138	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3139	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3140	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2481	Coro::cede;	3141
		3142	cf::cede_to_tick;
2482	}	3143	}
2483		3144
2484	while (my ($face, $info) = each %$faces) {	3145	while (my ($face, $info) = each %$faces) {
2485	next unless $info->{smooth};	3146	next unless $info->{smooth};
2486	my $idx = cf::face::find $face	3147	my $idx = cf::face::find $face
2487	or next;	3148	or next;
2488	if (my $smooth = cf::face::find $info->{smooth}) {	3149	if (my $smooth = cf::face::find $info->{smooth}) {
		3150	cf::face::set_smooth $idx, $smooth;
2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3151	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490	} else {	3152	} else {
2491	warn "smooth face '$info->{smooth}' not found for face '$face'";	3153	warn "smooth face '$info->{smooth}' not found for face '$face'";
2492	}	3154	}
2493	Coro::cede;	3155
		3156	cf::cede_to_tick;
2494	}	3157	}
2495	}	3158	}
2496		3159
2497	{	3160	{
2498	my $anims = $facedata->{animinfo};	3161	my $anims = $facedata->{animinfo};
2499		3162
2500	while (my ($anim, $info) = each %$anims) {	3163	while (my ($anim, $info) = each %$anims) {
2501	cf::anim::set $anim, $info->{frames}, $info->{facings};	3164	cf::anim::set $anim, $info->{frames}, $info->{facings};
2502	Coro::cede;	3165	cf::cede_to_tick;
2503	}	3166	}
2504		3167
2505	cf::anim::invalidate_all; # d'oh	3168	cf::anim::invalidate_all; # d'oh
2506	}	3169	}
2507		3170
		3171	{
		3172	# TODO: for gcfclient pleasure, we should give resources
		3173	# that gcfclient doesn't grok a >10000 face index.
		3174	my $res = $facedata->{resource};
		3175
		3176	my $soundconf = delete $res->{"res/sound.conf"};
		3177
		3178	while (my ($name, $info) = each %$res) {
		3179	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3180	my $data;
		3181
		3182	if ($info->{type} & 1) {
		3183	# prepend meta info
		3184
		3185	my $meta = $enc->encode ({
		3186	name => $name,
		3187	%{ $info->{meta} || {} },
		3188	});
		3189
		3190	$data = pack "(w/a*)*", $meta, $info->{data};
		3191	} else {
		3192	$data = $info->{data};
		3193	}
		3194
		3195	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3196	cf::face::set_type $idx, $info->{type};
		3197
		3198	cf::cede_to_tick;
		3199	}
		3200
		3201	if ($soundconf) {
		3202	$soundconf = $enc->decode (delete $soundconf->{data});
		3203
		3204	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3205	my $sound = $soundconf->{compat}[$_]
		3206	or next;
		3207
		3208	my $face = cf::face::find "sound/$sound->[1]";
		3209	cf::sound::set $sound->[0] => $face;
		3210	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3211	}
		3212
		3213	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3214	my $face = cf::face::find "sound/$v";
		3215	cf::sound::set $k => $face;
		3216	}
		3217	}
		3218	}
		3219
2508	1	3220	1
2509	}	3221	}
2510		3222
		3223	register_exticmd fx_want => sub {
		3224	my ($ns, $want) = @_;
		3225
		3226	while (my ($k, $v) = each %$want) {
		3227	$ns->fx_want ($k, $v);
		3228	}
		3229	};
		3230
2511	sub reload_regions {	3231	sub reload_regions {
		3232	# HACK to clear player env face cache, we need some signal framework
		3233	# for this (global event?)
		3234	%ext::player_env::MUSIC_FACE_CACHE = ();
		3235
2512	load_resource_file "$MAPDIR/regions"	3236	load_resource_file "$MAPDIR/regions"
2513	or die "unable to load regions file\n";	3237	or die "unable to load regions file\n";
		3238
		3239	for (cf::region::list) {
		3240	$_->{match} = qr/$_->{match}/
		3241	if exists $_->{match};
		3242	}
2514	}	3243	}
2515		3244
2516	sub reload_facedata {	3245	sub reload_facedata {
2517	load_facedata "$DATADIR/facedata"	3246	load_facedata "$DATADIR/facedata"
2518	or die "unable to load facedata\n";	3247	or die "unable to load facedata\n";
2519	}	3248	}
2520		3249
2521	sub reload_archetypes {	3250	sub reload_archetypes {
2522	load_resource_file "$DATADIR/archetypes"	3251	load_resource_file "$DATADIR/archetypes"
2523	or die "unable to load archetypes\n";	3252	or die "unable to load archetypes\n";
		3253	#d# NEED to laod twice to resolve forward references
		3254	# this really needs to be done in an extra post-pass
		3255	# (which needs to be synchronous, so solve it differently)
		3256	load_resource_file "$DATADIR/archetypes"
		3257	or die "unable to load archetypes\n";
2524	}	3258	}
2525		3259
2526	sub reload_treasures {	3260	sub reload_treasures {
2527	load_resource_file "$DATADIR/treasures"	3261	load_resource_file "$DATADIR/treasures"
2528	or die "unable to load treasurelists\n";	3262	or die "unable to load treasurelists\n";
…		…
2531	sub reload_resources {	3265	sub reload_resources {
2532	warn "reloading resource files...\n";	3266	warn "reloading resource files...\n";
2533		3267
2534	reload_regions;	3268	reload_regions;
2535	reload_facedata;	3269	reload_facedata;
		3270	#reload_archetypes;#d#
2536	reload_archetypes;	3271	reload_archetypes;
2537	reload_treasures;	3272	reload_treasures;
2538		3273
2539	warn "finished reloading resource files\n";	3274	warn "finished reloading resource files\n";
2540	}	3275	}
2541		3276
2542	sub init {	3277	sub init {
2543	reload_resources;	3278	reload_resources;
2544	}	3279	}
2545		3280
2546	sub cfg_load {	3281	sub reload_config {
2547	open my $fh, "<:utf8", "$CONFDIR/config"	3282	open my $fh, "<:utf8", "$CONFDIR/config"
2548	or return;	3283	or return;
2549		3284
2550	local $/;	3285	local $/;
2551	*CFG = YAML::Syck::Load <$fh>;	3286	*CFG = YAML::Syck::Load <$fh>;
…		…
2567	sub main {	3302	sub main {
2568	# we must not ever block the main coroutine	3303	# we must not ever block the main coroutine
2569	local $Coro::idle = sub {	3304	local $Coro::idle = sub {
2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3305	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2571	(async {	3306	(async {
		3307	$Coro::current->{desc} = "IDLE BUG HANDLER";
2572	Event::one_event;	3308	Event::one_event;
2573	})->prio (Coro::PRIO_MAX);	3309	})->prio (Coro::PRIO_MAX);
2574	};	3310	};
2575		3311
2576	cfg_load;	3312	reload_config;
2577	db_init;	3313	db_init;
2578	load_extensions;	3314	load_extensions;
2579		3315
2580	$TICK_WATCHER->start;	3316	$TICK_WATCHER->start;
2581	Event::loop;	3317	Event::loop;
…		…
2597	},	3333	},
2598	);	3334	);
2599	}	3335	}
2600	}	3336	}
2601		3337
		3338	sub write_runtime {
		3339	my $runtime = "$LOCALDIR/runtime";
		3340
		3341	# first touch the runtime file to show we are still running:
		3342	# the fsync below can take a very very long time.
		3343
		3344	IO::AIO::aio_utime $runtime, undef, undef;
		3345
		3346	my $guard = cf::lock_acquire "write_runtime";
		3347
		3348	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3349	or return;
		3350
		3351	my $value = $cf::RUNTIME + 90 + 10;
		3352	# 10 is the runtime save interval, for a monotonic clock
		3353	# 60 allows for the watchdog to kill the server.
		3354
		3355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3356	and return;
		3357
		3358	# always fsync - this file is important
		3359	aio_fsync $fh
		3360	and return;
		3361
		3362	# touch it again to show we are up-to-date
		3363	aio_utime $fh, undef, undef;
		3364
		3365	close $fh
		3366	or return;
		3367
		3368	aio_rename "$runtime~", $runtime
		3369	and return;
		3370
		3371	warn "runtime file written.\n";
		3372
		3373	1
		3374	}
		3375
2602	sub emergency_save() {	3376	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	3377	my $freeze_guard = cf::freeze_mainloop;
2604		3378
2605	warn "enter emergency perl save\n";	3379	warn "enter emergency perl save\n";
2606		3380
…		…
2610	# and maps saved/destroyed asynchronously.	3384	# and maps saved/destroyed asynchronously.
2611	warn "begin emergency player save\n";	3385	warn "begin emergency player save\n";
2612	for my $login (keys %cf::PLAYER) {	3386	for my $login (keys %cf::PLAYER) {
2613	my $pl = $cf::PLAYER{$login} or next;	3387	my $pl = $cf::PLAYER{$login} or next;
2614	$pl->valid or next;	3388	$pl->valid or next;
		3389	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2615	$pl->save;	3390	$pl->save;
2616	}	3391	}
2617	warn "end emergency player save\n";	3392	warn "end emergency player save\n";
2618		3393
2619	warn "begin emergency map save\n";	3394	warn "begin emergency map save\n";
…		…
2667		3442
2668	warn "flushing outstanding aio requests";	3443	warn "flushing outstanding aio requests";
2669	for (;;) {	3444	for (;;) {
2670	BDB::flush;	3445	BDB::flush;
2671	IO::AIO::flush;	3446	IO::AIO::flush;
2672	Coro::cede;	3447	Coro::cede_notself;
2673	last unless IO::AIO::nreqs || BDB::nreqs;	3448	last unless IO::AIO::nreqs || BDB::nreqs;
2674	warn "iterate...";	3449	warn "iterate...";
2675	}	3450	}
2676		3451
2677	++$RELOAD;	3452	++$RELOAD;
…		…
2681	%EXT_CORO = ();	3456	%EXT_CORO = ();
2682		3457
2683	warn "removing commands";	3458	warn "removing commands";
2684	%COMMAND = ();	3459	%COMMAND = ();
2685		3460
2686	warn "removing ext commands";	3461	warn "removing ext/exti commands";
2687	%EXTCMD = ();	3462	%EXTCMD = ();
		3463	%EXTICMD = ();
2688		3464
2689	warn "unloading/nuking all extensions";	3465	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {	3466	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";	3467	warn "... unloading $pkg";
2692		3468
…		…
2735	warn "reloading cf.pm";	3511	warn "reloading cf.pm";
2736	require cf;	3512	require cf;
2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3513	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2738		3514
2739	warn "loading config and database again";	3515	warn "loading config and database again";
2740	cf::cfg_load;	3516	cf::reload_config;
2741		3517
2742	warn "loading extensions";	3518	warn "loading extensions";
2743	cf::load_extensions;	3519	cf::load_extensions;
2744		3520
2745	warn "reattaching attachments to objects/players";	3521	warn "reattaching attachments to objects/players";
…		…
2781	register_command "reload" => sub {	3557	register_command "reload" => sub {
2782	my ($who, $arg) = @_;	3558	my ($who, $arg) = @_;
2783		3559
2784	if ($who->flag (FLAG_WIZ)) {	3560	if ($who->flag (FLAG_WIZ)) {
2785	$who->message ("reloading server.");	3561	$who->message ("reloading server.");
		3562	async {
		3563	$Coro::current->{desc} = "perl_reload";
2786	async { reload_perl };	3564	reload_perl;
		3565	};
2787	}	3566	}
2788	};	3567	};
2789		3568
2790	unshift @INC, $LIBDIR;	3569	unshift @INC, $LIBDIR;
2791		3570
…		…
2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3602	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824	unless ++$bug_warning > 10;	3603	unless ++$bug_warning > 10;
2825	return;	3604	return;
2826	}	3605	}
2827		3606
2828	$NOW = Event::time;	3607	$NOW = $tick_start = Event::time;
2829		3608
2830	cf::server_tick; # one server iteration	3609	cf::server_tick; # one server iteration
2831		3610
2832	$RUNTIME += $TICK;	3611	$RUNTIME += $TICK;
2833	$NEXT_TICK += $TICK;	3612	$NEXT_TICK += $TICK;
2834		3613
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3614	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2836	$NEXT_RUNTIME_WRITE = $NOW + 10;	3615	$NEXT_RUNTIME_WRITE = $NOW + 10;
2837	Coro::async_pool {	3616	Coro::async_pool {
		3617	$Coro::current->{desc} = "runtime saver";
2838	write_runtime	3618	write_runtime
2839	or warn "ERROR: unable to write runtime file: $!";	3619	or warn "ERROR: unable to write runtime file: $!";
2840	};	3620	};
2841	}	3621	}
2842		3622
2843	# my $AFTER = Event::time;	3623	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2844	# warn $AFTER - $NOW;#d#	3624	$sig->send;
		3625	}
		3626	while (my $sig = shift @WAIT_FOR_TICK) {
		3627	$sig->send;
		3628	}
		3629
		3630	$NOW = Event::time;
2845		3631
2846	# if we are delayed by four ticks or more, skip them all	3632	# if we are delayed by four ticks or more, skip them all
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3633	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2848		3634
2849	$TICK_WATCHER->at ($NEXT_TICK);	3635	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;	3636	$TICK_WATCHER->start;
2851		3637
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3638	$LOAD = ($NOW - $tick_start) / $TICK;
2853	$sig->send;	3639	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2854	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;
2857	}
2858		3640
2859	_post_tick;	3641	_post_tick;
2860	},	3642	},
2861	);	3643	);
2862		3644
2863	{	3645	{
		3646	BDB::min_parallel 8;
2864	BDB::max_poll_time $TICK * 0.1;	3647	BDB::max_poll_time $TICK * 0.1;
2865	$BDB_POLL_WATCHER = Event->io (	3648	$BDB_POLL_WATCHER = Event->io (
2866	reentrant => 0,	3649	reentrant => 0,
2867	fd => BDB::poll_fileno,	3650	fd => BDB::poll_fileno,
2868	poll => 'r',	3651	poll => 'r',
2869	prio => 0,	3652	prio => 0,
2870	data => WF_AUTOCANCEL,	3653	data => WF_AUTOCANCEL,
2871	cb => \&BDB::poll_cb,	3654	cb => \&BDB::poll_cb,
2872	);	3655	);
2873	BDB::min_parallel 8;
2874		3656
2875	BDB::set_sync_prepare {	3657	BDB::set_sync_prepare {
2876	my $status;	3658	my $status;
2877	my $current = $Coro::current;	3659	my $current = $Coro::current;
2878	(	3660	(
…		…
2887	)	3669	)
2888	};	3670	};
2889		3671
2890	unless ($DB_ENV) {	3672	unless ($DB_ENV) {
2891	$DB_ENV = BDB::db_env_create;	3673	$DB_ENV = BDB::db_env_create;
		3674	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3675	| BDB::LOG_AUTOREMOVE, 1);
		3676	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3677	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2892		3678
2893	cf::sync_job {	3679	cf::sync_job {
2894	eval {	3680	eval {
2895	BDB::db_env_open	3681	BDB::db_env_open
2896	$DB_ENV,	3682	$DB_ENV,
…		…
2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3684	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3685	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2900	0666;	3686	0666;
2901		3687
2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3688	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2903
2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2905	$DB_ENV->set_lk_detect;
2906	};	3689	};
2907		3690
2908	cf::cleanup "db_env_open(db): $@" if $@;	3691	cf::cleanup "db_env_open(db): $@" if $@;
2909	};	3692	};
2910	}	3693	}
		3694
		3695	$BDB_DEADLOCK_WATCHER = Event->timer (
		3696	after => 3,
		3697	interval => 1,
		3698	hard => 1,
		3699	prio => 0,
		3700	data => WF_AUTOCANCEL,
		3701	cb => sub {
		3702	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3703	},
		3704	);
		3705	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3706	after => 11,
		3707	interval => 60,
		3708	hard => 1,
		3709	prio => 0,
		3710	data => WF_AUTOCANCEL,
		3711	cb => sub {
		3712	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3713	},
		3714	);
		3715	$BDB_TRICKLE_WATCHER = Event->timer (
		3716	after => 5,
		3717	interval => 10,
		3718	hard => 1,
		3719	prio => 0,
		3720	data => WF_AUTOCANCEL,
		3721	cb => sub {
		3722	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3723	},
		3724	);
2911	}	3725	}
2912		3726
2913	{	3727	{
2914	IO::AIO::min_parallel 8;	3728	IO::AIO::min_parallel 8;
2915		3729
…		…
2918	$AIO_POLL_WATCHER = Event->io (	3732	$AIO_POLL_WATCHER = Event->io (
2919	reentrant => 0,	3733	reentrant => 0,
2920	data => WF_AUTOCANCEL,	3734	data => WF_AUTOCANCEL,
2921	fd => IO::AIO::poll_fileno,	3735	fd => IO::AIO::poll_fileno,
2922	poll => 'r',	3736	poll => 'r',
2923	prio => 6,	3737	prio => 0,
2924	cb => \&IO::AIO::poll_cb,	3738	cb => \&IO::AIO::poll_cb,
2925	);	3739	);
2926	}	3740	}
2927		3741
		3742	my $_log_backtrace;
		3743
		3744	sub _log_backtrace {
		3745	my ($msg, @addr) = @_;
		3746
		3747	$msg =~ s/\n//;
		3748
		3749	# limit the # of concurrent backtraces
		3750	if ($_log_backtrace < 2) {
		3751	++$_log_backtrace;
		3752	async {
		3753	$Coro::current->{desc} = "abt $msg";
		3754
		3755	my @bt = fork_call {
		3756	@addr = map { sprintf "%x", $_ } @addr;
		3757	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3758	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3759	or die "addr2line: $!";
		3760
		3761	my @funcs;
		3762	my @res = <$fh>;
		3763	chomp for @res;
		3764	while (@res) {
		3765	my ($func, $line) = splice @res, 0, 2, ();
		3766	push @funcs, "[$func] $line";
		3767	}
		3768
		3769	@funcs
		3770	};
		3771
		3772	LOG llevInfo, "[ABT] $msg\n";
		3773	LOG llevInfo, "[ABT] $_\n" for @bt;
		3774	--$_log_backtrace;
		3775	};
		3776	} else {
		3777	LOG llevInfo, "[ABT] $msg\n";
		3778	LOG llevInfo, "[ABT] [suppressed]\n";
		3779	}
		3780	}
		3781
2928	# load additional modules	3782	# load additional modules
2929	use cf::pod;	3783	use cf::pod;
2930		3784
2931	END { cf::emergency_save }	3785	END { cf::emergency_save }
2932		3786

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