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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 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	warn "starting to write runtime...\n";#d#	498	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		499
380	my $value = $cf::RUNTIME + 90 + 10;	500	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	501	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		502
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	503	# we seemingly have to make a local copy of the whole thing,
385	and return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
386		506
387	# always fsync - this file is important	507	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	508	reset_signals;
389	and return;	509	&$cb
		510	}, @args;
390		511
391	close $fh	512	wantarray ? @res : $res[-1]
392	or return;	513	}
393		514
394	aio_rename "$runtime~", $runtime	515	=item $value = cf::db_get $family => $key
395	and return;
396		516
397	warn "... done writing runtime.\n";#d#	517	Returns a single value from the environment database.
398		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
399	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"
400	}	640	}
401		641
402	=item cf::datalog type => key => value, ...	642	=item cf::datalog type => key => value, ...
403		643
404	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.
…		…
422	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")
423	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
424		664
425	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>
426	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
427	crossfire+).	667	Crossfire TRT).
428		668
429	=over 4	669	=over 4
430		670
431	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
432		672
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
596		836
597	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		841
602	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	843	my $pkg = shift @arg;
604		844
605	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
635	}	875	}
636		876
637	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
638	} else {	878	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	880	}
641		881
642	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
643	}	883	}
644		884
…		…
646	if (ref $_[0]) {	886	if (ref $_[0]) {
647	_object_attach @_;	887	_object_attach @_;
648	} else {	888	} else {
649	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
650	}	890	}
		891	_recalc_want;
651	};	892	};
652		893
653	# all those should be optimised	894	# all those should be optimised
654	sub cf::attachable::detach {	895	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
659	reattach ($obj);	900	reattach ($obj);
660	} else {	901	} else {
661	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
662	}	903	}
		904	_recalc_want;
663	};	905	};
664		906
665	sub cf::attachable::attached {	907	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
667		909
…		…
682	";	924	";
683	die if $@;	925	die if $@;
684	}	926	}
685		927
686	our $override;	928	our $override;
687	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?
688		930
689	sub override {	931	sub override {
690	$override = 1;	932	$override = 1;
691	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
692	}	934	}
693		935
694	sub do_invoke {	936	sub do_invoke {
695	my $event = shift;	937	my $event = shift;
696	my $callbacks = shift;	938	my $callbacks = shift;
697		939
698	@invoke_results = ();	940	@INVOKE_RESULTS = ();
699		941
700	local $override;	942	local $override;
701		943
702	for (@$callbacks) {	944	for (@$callbacks) {
703	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
720		962
721	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
722		964
723	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
724	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
725	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		968
727	=back	969	=back
728		970
729	=cut	971	=cut
730		972
731	#############################################################################	973	#############################################################################
732	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
733		1017
734	sub reattach {	1018	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	1020	my ($obj) = @_;
737		1021
…		…
784	sub object_freezer_save {	1068	sub object_freezer_save {
785	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
786		1070
787	sync_job {	1071	sync_job {
788	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
789	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
790	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
791		1076
792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
793	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
795	aio_fsync $fh if $cf::USE_FSYNC;	1080	aio_fsync $fh if $cf::USE_FSYNC;
796	close $fh;	1081	close $fh;
797		1082
798	if (@$objs) {	1083	if (@$objs) {
799	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) {
800	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
801	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
802	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
803	aio_fsync $fh if $cf::USE_FSYNC;	1088	aio_fsync $fh if $cf::USE_FSYNC;
804	close $fh;	1089	close $fh;
805	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
806	}	1091	}
…		…
814	}	1099	}
815	} else {	1100	} else {
816	aio_unlink $filename;	1101	aio_unlink $filename;
817	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
818	}	1103	}
819	}	1104	};
820	}	1105	}
821		1106
822	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
823	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
824		1109
…		…
836	or return;	1121	or return;
837		1122
838	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
839	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
840	or return;	1125	or return;
		1126
841	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
842	}	1129	}
843		1130
		1131	utf8::decode (my $decname = $filename);
844	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
846	return ($data, $av);	1135	($data, $av)
847	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
848		1143
849	#############################################################################	1144	#############################################################################
850	# command handling &c	1145	# command handling &c
851		1146
852	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1161	}
867		1162
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1164
870	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.
871		1170
872	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
873	called.	1172	called.
874		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
875	=cut	1185	=cut
876		1186
877	sub register_extcmd {	1187	sub register_extcmd {
878	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
879		1189
880	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
881	}	1197	}
882		1198
883	cf::player->attach (	1199	cf::player->attach (
884	on_command => sub {	1200	on_command => sub {
885	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
894	cf::override;	1210	cf::override;
895	},	1211	},
896	on_extcmd => sub {	1212	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
898		1214
899	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1216
901	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
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
907	} else {	1232	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1234	}
910		1235
911	cf::override;	1236	cf::override;
912	},	1237	},
913	);	1238	);
914		1239
915	sub load_extension {
916	my ($path) = @_;
917
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
919	my $base = $1;
920	my $pkg = $1;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}
943	die $@;
944	}
945
946	push @EXTS, $pkg;
947	}
948
949	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
950	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1245	next unless -r $path;
952	eval {	1246
953	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;
954	1	1304	}
955	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
956	}	1310	};
957	}	1311	}
958		1312
959	#############################################################################	1313	#############################################################################
960		1314
		1315	=back
		1316
961	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
962		1318
963	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
964		1320
965	=cut	1321	=cut
…		…
969	use Coro::AIO;	1325	use Coro::AIO;
970		1326
971	=head3 cf::player	1327	=head3 cf::player
972		1328
973	=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	}
974		1344
975	=item cf::player::find $login	1345	=item cf::player::find $login
976		1346
977	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
978		1348
…		…
1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017	aio_unlink +(playerdir $login) . "/$login.pl";	1387	aio_unlink +(playerdir $login) . "/$login.pl";
1018		1388
1019	my $pl = load_pl path $login	1389	my $f = new_from_file cf::object::thawer path $login
1020	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;
1021	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1022	}	1397	}
1023	}	1398	}
1024	}	1399	}
1025		1400
…		…
1035		1410
1036	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1037	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1038		1413
1039	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1040	Coro::cede;	1415	cf::cede_to_tick;
1041	}	1416	}
1042		1417
1043	sub new($) {	1418	sub new($) {
1044	my ($login) = @_;	1419	my ($login) = @_;
1045		1420
…		…
1049	$self->{deny_save} = 1;	1424	$self->{deny_save} = 1;
1050		1425
1051	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1052		1427
1053	$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 (@_);
1054	}	1439	}
1055		1440
1056	=item $pl->quit_character	1441	=item $pl->quit_character
1057		1442
1058	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
…		…
1113	or return [];	1498	or return [];
1114		1499
1115	my @logins;	1500	my @logins;
1116		1501
1117	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") {
1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1119	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1120	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1121		1511
1122	utf8::decode $login;	1512	utf8::decode $login;
1123	push @logins, $login;	1513	push @logins, $login;
1124	}	1514	}
1125		1515
…		…
1152	}	1542	}
1153		1543
1154	\@paths	1544	\@paths
1155	}	1545	}
1156		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
1157	=item $player->ext_reply ($msgid, %msg)	1637	=item $player->ext_reply ($msgid, @msg)
1158		1638
1159	Sends an ext reply to the player.	1639	Sends an ext reply to the player.
1160		1640
1161	=cut	1641	=cut
1162		1642
1163	sub ext_reply($$%) {	1643	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1644	my ($self, $id, @msg) = @_;
1165		1645
1166	$msg{msgid} = $id;	1646	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1647	}
1170		1648
1171	=item $player->ext_event ($type, %msg)	1649	=item $player->ext_msg ($type, @msg)
1172		1650
1173	Sends an ext event to the client.	1651	Sends an ext event to the client.
1174		1652
1175	=cut	1653	=cut
1176		1654
1177	sub ext_event($$%) {	1655	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1656	my ($self, $type, @msg) = @_;
1179		1657
1180	$self->ns->ext_event ($type, %msg);	1658	$self->ns->ext_msg ($type, @msg);
1181	}	1659	}
1182		1660
1183	=head3 cf::region	1661	=head3 cf::region
1184		1662
1185	=over 4	1663	=over 4
…		…
1188		1666
1189	package cf::region;	1667	package cf::region;
1190		1668
1191	=item cf::region::find_by_path $path	1669	=item cf::region::find_by_path $path
1192		1670
1193	Tries to decuce the probable region for a map knowing only its path.	1671	Tries to decuce the likely region for a map knowing only its path.
1194		1672
1195	=cut	1673	=cut
1196		1674
1197	sub find_by_path($) {	1675	sub find_by_path($) {
1198	my ($path) = @_;	1676	my ($path) = @_;
1199		1677
1200	my ($match, $specificity);	1678	my ($match, $specificity);
1201		1679
1202	for my $region (list) {	1680	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1681	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1682	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1683	if $region->specificity > $specificity;
1206	}	1684	}
1207	}	1685	}
1208		1686
…		…
1272	my ($self, $merge) = @_;	1750	my ($self, $merge) = @_;
1273		1751
1274	# we have to keep some variables in memory intact	1752	# we have to keep some variables in memory intact
1275	local $self->{path};	1753	local $self->{path};
1276	local $self->{load_path};	1754	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1755
1280	$self->SUPER::thawer_merge ($merge);	1756	$self->SUPER::thawer_merge ($merge);
1281	}	1757	}
1282		1758
1283	sub normalise {	1759	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1806	$self->init; # pass $1 etc.
1331	return $self;	1807	return $self;
1332	}	1808	}
1333	}	1809	}
1334		1810
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1812	()
1337	}	1813	}
1338		1814
1339	sub init {	1815	sub init {
1340	my ($self) = @_;	1816	my ($self) = @_;
…		…
1383		1859
1384	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1385	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1386	}	1862	}
1387		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
1388	sub unlink_save {	1872	sub unlink_save {
1389	my ($self) = @_;	1873	my ($self) = @_;
1390		1874
1391	utf8::encode (my $save = $self->save_path);	1875	utf8::encode (my $save = $self->save_path);
1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1395		1879
1396	sub load_header_from($) {	1880	sub load_header_from($) {
1397	my ($self, $path) = @_;	1881	my ($self, $path) = @_;
1398		1882
1399	utf8::encode $path;	1883	utf8::encode $path;
1400	#aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1401	# or return;
1402
1403	$self->_load_header ($path)
1404	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;
1405		1892
1406	$self->{load_path} = $path;	1893	$self->{load_path} = $path;
1407		1894
1408	1	1895	1
1409	}	1896	}
…		…
1448	$self->load_header_orig	1935	$self->load_header_orig
1449	or return;	1936	or return;
1450	$self->prepare_orig;	1937	$self->prepare_orig;
1451	}	1938	}
1452		1939
		1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
		1942
1453	$self->default_region (cf::region::find_by_path $self->{path})	1943	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1944	unless $self->default_region;
1455		1945
1456	1	1946	1
1457	}	1947	}
…		…
1460	sub find {	1950	sub find {
1461	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1462		1952
1463	$path = normalise $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1464		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1465	cf::lock_wait "map_find:$path";	1956	cf::lock_wait "map_find:$path";
1466		1957
1467	$cf::MAP{$path} || do {	1958	$cf::MAP{$path} || do {
1468	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
1469	my $map = new_from_path cf::map $path	1962	my $map = new_from_path cf::map $path
1470	or return;	1963	or return;
1471		1964
1472	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1473		1966
1474	$map->load_header	1967	$map->load_header
1475	or return;	1968	or return;
1476		1969
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	1971	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard1;
		1974	undef $guard2;
1480	$map->reset;	1975	$map->reset;
1481	undef $guard;
1482	return find $path;	1976	return find $path;
1483	}	1977	}
1484		1978
1485	$cf::MAP{$path} = $map	1979	$cf::MAP{$path} = $map
1486	}	1980	}
…		…
1495	local $self->{deny_reset} = 1; # loading can take a long time	1989	local $self->{deny_reset} = 1; # loading can take a long time
1496		1990
1497	my $path = $self->{path};	1991	my $path = $self->{path};
1498		1992
1499	{	1993	{
1500	my $guard = cf::lock_acquire "map_load:$path";	1994	my $guard = cf::lock_acquire "map_data:$path";
1501		1995
		1996	return unless $self->valid;
1502	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1503		1998
1504	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1505		2000
1506	$self->alloc;	2001	$self->alloc;
1507		2002
1508	$self->pre_load;	2003	$self->pre_load;
1509	Coro::cede;	2004	cf::cede_to_tick;
1510		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
1511	$self->_load_objects ($self->{load_path}, 1)	2008	$self->_load_objects ($f)
1512	or return;	2009	or return;
1513		2010
1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1515	if delete $self->{load_original};	2012	if delete $self->{load_original};
1516		2013
1517	if (my $uniq = $self->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1518	utf8::encode $uniq;	2015	utf8::encode $uniq;
1519	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1520	$self->clear_unique_items;	2018	$self->clear_unique_items;
1521	$self->_load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1522	}	2022	}
1523	}	2023	}
1524		2024
1525	Coro::cede;	2025	$f->resolve_delayed_derefs;
		2026
		2027	cf::cede_to_tick;
1526	# now do the right thing for maps	2028	# now do the right thing for maps
1527	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1528	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1529	unless $self->difficulty;	2031	unless $self->difficulty;
1530	Coro::cede;	2032	cf::cede_to_tick;
1531		2033
1532	unless ($self->{deny_activate}) {	2034	unless ($self->{deny_activate}) {
1533	$self->decay_objects;	2035	$self->decay_objects;
1534	$self->fix_auto_apply;	2036	$self->fix_auto_apply;
1535	$self->update_buttons;	2037	$self->update_buttons;
1536	Coro::cede;	2038	cf::cede_to_tick;
1537	$self->set_darkness_map;	2039	$self->set_darkness_map;
1538	Coro::cede;	2040	cf::cede_to_tick;
1539	$self->activate;	2041	$self->activate;
1540	}	2042	}
		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1541		2046
1542	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_IN_MEMORY);
1543	}	2048	}
1544		2049
1545	$self->post_load;	2050	$self->post_load;
…		…
1549	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1550		2055
1551	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	2057	if $self->per_player;
1553		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1554	$self	2062	$self
1555	}	2063	}
1556		2064
1557	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	2066	sub load_neighbours {
1559	my ($map) = @_;	2067	my ($map) = @_;
1560		2068
1561	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1562		2070
1563	for (0 .. 3) {	2071	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1565	or next;	2073	or next;
1566	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1567	or next;	2075	or next;
1568	$neigh->load;	2076	$neigh->load;
1569		2077
		2078	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	2081	}
1573		2082
1574	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1576	or next;	2086	or next;
1577	$neigh->load;	2087	$neigh->load;
1578	}	2088	}
1579	}	2089	}
1580		2090
…		…
1585	}	2095	}
1586		2096
1587	sub do_load_sync {	2097	sub do_load_sync {
1588	my ($map) = @_;	2098	my ($map) = @_;
1589		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1590	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1591	}	2104	}
1592		2105
1593	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	2107	our $MAP_PREFETCHER = undef;
1595		2108
1596	sub find_async {	2109	sub find_async {
1597	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1598		2111
1599	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1600		2113
1601	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2115	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1603	}	2116	}
1604		2117
1605	undef $MAP_PREFETCH{$path};	2118	$MAP_PREFETCH{$path} |= $load;
		2119
1606	$MAP_PREFETCHER ||= cf::async {	2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
1607	while (%MAP_PREFETCH) {	2123	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	2124	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	2125	if (my $map = find $k) {
1610	or next;
1611	$map->load;	2126	$map->load if $v;
		2127	}
1612		2128
1613	delete $MAP_PREFETCH{$path};	2129	delete $MAP_PREFETCH{$k};
1614	}	2130	}
1615	}	2131	}
1616	undef $MAP_PREFETCHER;	2132	undef $MAP_PREFETCHER;
1617	};	2133	};
1618	$MAP_PREFETCHER->prio (6);	2134	$MAP_PREFETCHER->prio (6);
…		…
1621	}	2137	}
1622		2138
1623	sub save {	2139	sub save {
1624	my ($self) = @_;	2140	my ($self) = @_;
1625		2141
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1627		2143
1628	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1629		2145
1630	return unless $self->dirty;	2146	return unless $self->dirty;
1631		2147
…		…
1637	return if $self->{deny_save};	2153	return if $self->{deny_save};
1638		2154
1639	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1640		2156
1641	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1642	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1643	};	2160	};
1644		2161
1645	if ($uniq) {	2162	if ($uniq) {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1654	my ($self) = @_;	2171	my ($self) = @_;
1655		2172
1656	# save first because save cedes	2173	# save first because save cedes
1657	$self->save;	2174	$self->save;
1658		2175
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2177
1661	return if $self->players;	2178	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_IN_MEMORY;
1663	return if $self->{deny_save};	2180	return if $self->{deny_save};
1664		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1665	$self->clear;	2186	$self->clear;
1666	$self->in_memory (cf::MAP_SWAPPED);
1667	}	2187	}
1668		2188
1669	sub reset_at {	2189	sub reset_at {
1670	my ($self) = @_;	2190	my ($self) = @_;
1671		2191
1672	# TODO: safety, remove and allow resettable per-player maps	2192	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2193	return 1e99 if $self->{deny_reset};
1675		2194
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2197
…		…
1689	my ($self) = @_;	2208	my ($self) = @_;
1690		2209
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2211
1693	return if $self->players;	2212	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2213
1696	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
1697		2215
1698	$self->in_memory (cf::MAP_SWAPPED);	2216	$self->in_memory (cf::MAP_SWAPPED);
1699		2217
1700	# need to save uniques path	2218	# need to save uniques path
1701	unless ($self->{deny_save}) {	2219	unless ($self->{deny_save}) {
…		…
1705	if $uniq;	2223	if $uniq;
1706	}	2224	}
1707		2225
1708	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1709		2227
		2228	$self->deactivate;
		2229	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2230	$self->clear;
1711
1712	$_->clear_links_to ($self) for values %cf::MAP;
1713		2231
1714	$self->unlink_save;	2232	$self->unlink_save;
1715	$self->destroy;	2233	$self->destroy;
1716	}	2234	}
1717		2235
1718	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1719		2237
1720	sub nuke {	2238	sub nuke {
1721	my ($self) = @_;	2239	my ($self) = @_;
1722		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
1723	delete $cf::MAP{$self->path};	2244	delete $cf::MAP{$self->path};
1724		2245
1725	$self->unlink_save;	2246	$self->unlink_save;
1726		2247
1727	bless $self, "cf::map";	2248	bless $self, "cf::map";
1728	delete $self->{deny_reset};	2249	delete $self->{deny_reset};
1729	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1730	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1732		2253
1733	$cf::MAP{$self->path} = $self;	2254	$cf::MAP{$self->path} = $self;
		2255	}
1734		2256
1735	$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	]
1736	}	2294	}
1737		2295
1738	=item cf::map::unique_maps	2296	=item cf::map::unique_maps
1739		2297
1740	Returns an arrayref of paths of all shared maps that have	2298	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2299	instantiated unique items. May block.
1742		2300
1743	=cut	2301	=cut
1744		2302
1745	sub unique_maps() {	2303	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2304	[
1747	or return;	2305	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2306	utf8::decode $_;
1753	next if /\.pst$/;	2307	/\.map$/
1754	next unless /^$PATH_SEP/o;	2308	? normalise $_
1755		2309	: ()
1756	push @paths, cf::map::normalise $_;	2310	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2311	]
1758
1759	\@paths
1760	}	2312	}
1761		2313
1762	package cf;	2314	package cf;
1763		2315
1764	=back	2316	=back
…		…
1782	map { $_, inv_recursive_ $_->inv } @_	2334	map { $_, inv_recursive_ $_->inv } @_
1783	}	2335	}
1784		2336
1785	sub inv_recursive {	2337	sub inv_recursive {
1786	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	}
1787	}	2367	}
1788		2368
1789	package cf;	2369	package cf;
1790		2370
1791	=back	2371	=back
…		…
1810		2390
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2391	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2392
1813	if ($self->{record_replies}) {	2393	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2394	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2395
1815	} 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 {
1816	$msg = $npc->name . " says: $msg" if $npc;	2404	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2405	$self->message ($msg, $flags);
		2406	}
1818	}	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 (@_);
1819	}	2418	}
1820		2419
1821	=item $player_object->may ("access")	2420	=item $player_object->may ("access")
1822		2421
1823	Returns wether the given player is authorized to access resource "access"	2422	Returns wether the given player is authorized to access resource "access"
…		…
1870	$self->deactivate_recursive;	2469	$self->deactivate_recursive;
1871		2470
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2471	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2472
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2473	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2474	if $self->map && $self->map->{path} ne "{link}";
1876		2475
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2476	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1878	}	2477	}
1879		2478
1880	sub cf::object::player::leave_link {	2479	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2480	my ($self, $map, $x, $y) = @_;
		2481
		2482	return unless $self->contr->active;
1882		2483
1883	my $link_pos = delete $self->{_link_pos};	2484	my $link_pos = delete $self->{_link_pos};
1884		2485
1885	unless ($map) {	2486	unless ($map) {
1886	# restore original map position	2487	# restore original map position
…		…
1900	# use -1 or undef as default coordinates, not 0, 0	2501	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2502	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2503	if $x <=0 && $y <= 0;
1903		2504
1904	$map->load;	2505	$map->load;
1905	$map->load_diag;	2506	$map->load_neighbours;
1906		2507
1907	return unless $self->contr->active;	2508	return unless $self->contr->active;
1908	$self->activate_recursive;	2509	$self->activate_recursive;
1909		2510
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2511	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2512	$self->enter_map ($map, $x, $y);
1912	}	2513	}
1913		2514
1914	cf::player->attach (	2515	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1915	on_logout => sub {
1916	my ($pl) = @_;
1917		2516
1918	# abort map switching before logout	2517	Moves the player to the given map-path and coordinates by first freezing
1919	if ($pl->ob->{_link_pos}) {	2518	her, loading and preparing them map, calling the provided $check callback
1920	cf::sync_job {	2519	that has to return the map if sucecssful, and then unfreezes the player on
1921	$pl->ob->leave_link	2520	the new (success) or old (failed) map position. In either case, $done will
1922	};	2521	be called at the end of this process.
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2522
1928	# try to abort aborted map switching on player login :)
1929	# should happen only on crashes
1930	if ($pl->ob->{_link_pos}) {
1931	$pl->ob->enter_link;
1932	(async {
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945
1946	=item $player_object->goto ($path, $x, $y)
1947
1948	=cut	2523	=cut
		2524
		2525	our $GOTOGEN;
1949		2526
1950	sub cf::object::player::goto {	2527	sub cf::object::player::goto {
1951	my ($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;
1952		2532
1953	$self->enter_link;	2533	$self->enter_link;
1954		2534
1955	(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
1956	my $map = eval {	2557	my $map = eval {
1957	my $map = cf::map::find $path;	2558	my $map = defined $path ? cf::map::find $path : undef;
		2559
		2560	if ($map) {
1958	$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
1959	$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 $@;
1960	} or	2573	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2574
		2575	if ($gen == $self->{_goto_generation}) {
		2576	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2577	$self->leave_link ($map, $x, $y);
		2578	}
		2579
		2580	$done->() if $done;
1964	})->prio (1);	2581	})->prio (1);
1965	}	2582	}
1966		2583
1967	=item $player_object->enter_exit ($exit_object)	2584	=item $player_object->enter_exit ($exit_object)
1968		2585
…		…
2037	my $hp = $exit->stats->hp;	2654	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;	2655	my $sp = $exit->stats->sp;
2039		2656
2040	$self->enter_link;	2657	$self->enter_link;
2041		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
2042	(async {	2663	(async {
		2664	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2665
2043	$self->deactivate_recursive; # just to be sure	2666	$self->deactivate_recursive; # just to be sure
2044	unless (eval {	2667	unless (eval {
2045	$self->goto ($slaying, $hp, $sp);	2668	$self->goto ($slaying, $hp, $sp);
2046		2669
2047	1;	2670	1;
…		…
2073		2696
2074	utf8::encode $text;	2697	utf8::encode $text;
2075	$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);
2076	}	2699	}
2077		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
2078	=item $client->ext_event ($type, %msg)	2825	=item $client->ext_msg ($type, @msg)
2079		2826
2080	Sends an exti event to the client.	2827	Sends an ext event to the client.
2081		2828
2082	=cut	2829	=cut
2083		2830
2084	sub cf::client::ext_event($$%) {	2831	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	2832	my ($self, $type, @msg) = @_;
2086		2833
		2834	if ($self->extcmd == 2) {
		2835	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2836	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	2837	push @msg, msgtype => "event_$type";
2088	$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	}
2089	}	2858	}
2090		2859
2091	=item $success = $client->query ($flags, "text", \&cb)	2860	=item $success = $client->query ($flags, "text", \&cb)
2092		2861
2093	Queues a query to the client, calling the given callback with	2862	Queues a query to the client, calling the given callback with
2094	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>,
2095	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>.
2096		2865
2097	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
2098	reliable at some point in the future.	2867	become reliable at some point in the future.
2099		2868
2100	=cut	2869	=cut
2101		2870
2102	sub cf::client::query {	2871	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2872	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2880	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2881	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2882
2114	$self->send_packet ($self->{query_queue}[0][0])	2883	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2884	if @{ $self->{query_queue} } == 1;
		2885
		2886	1
2116	}	2887	}
2117		2888
2118	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	},
2119	on_reply => sub {	2895	on_reply => sub {
2120	my ($ns, $msg) = @_;	2896	my ($ns, $msg) = @_;
2121		2897
2122	# this weird shuffling is so that direct followup queries	2898	# this weird shuffling is so that direct followup queries
2123	# get handled first	2899	# get handled first
…		…
2135	} else {	2911	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2912	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	2913	}
2138	}	2914	}
2139	},	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	},
2140	);	2942	);
2141		2943
2142	=item $client->async (\&cb)	2944	=item $client->async (\&cb)
2143		2945
2144	Create a new coroutine, running the specified callback. The coroutine will	2946	Create a new coroutine, running the specified callback. The coroutine will
…		…
2185	our $safe = new Safe "safe";	2987	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	2988	our $safe_hole = new Safe::Hole;
2187		2989
2188	$SIG{FPE} = 'IGNORE';	2990	$SIG{FPE} = 'IGNORE';
2189		2991
2190	$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	));
2191		2997
2192	# here we export the classes and methods available to script code	2998	# here we export the classes and methods available to script code
2193		2999
2194	=pod	3000	=pod
2195		3001
2196	The following functions and methods are available within a safe environment:	3002	The following functions and methods are available within a safe environment:
2197		3003
2198	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
2199	cf::object::player player	3008	cf::object::player
2200	cf::player peaceful	3009	player
2201	cf::map trigger	3010
		3011	cf::player
		3012	peaceful
		3013
		3014	cf::map
		3015	trigger
2202		3016
2203	=cut	3017	=cut
2204		3018
2205	for (	3019	for (
2206	["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)],
2207	["cf::object::player" => qw(player)],	3023	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	3024	["cf::player" => qw(peaceful)],
2209	["cf::map" => qw(trigger)],	3025	["cf::map" => qw(trigger)],
2210	) {	3026	) {
2211	no strict 'refs';	3027	no strict 'refs';
…		…
2282	=back	3098	=back
2283		3099
2284	=cut	3100	=cut
2285		3101
2286	#############################################################################	3102	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	3103	# the server's init and main functions
2462		3104
2463	sub load_facedata($) {	3105	sub load_facedata($) {
2464	my ($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;
2465		3113
2466	warn "loading facedata from $path\n";	3114	warn "loading facedata from $path\n";
2467		3115
2468	my $facedata;	3116	my $facedata;
2469	0 < aio_load $path, $facedata	3117	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	3120	$facedata = Coro::Storable::thaw $facedata;
2473		3121
2474	$facedata->{version} == 2	3122	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	3123	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		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
2477	{	3132	{
2478	my $faces = $facedata->{faceinfo};	3133	my $faces = $facedata->{faceinfo};
2479		3134
2480	while (my ($face, $info) = each %$faces) {	3135	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3136	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3137	cf::face::set_visibility $idx, $info->{visibility};
		3138	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3139	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3140	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2485	Coro::cede;	3141
		3142	cf::cede_to_tick;
2486	}	3143	}
2487		3144
2488	while (my ($face, $info) = each %$faces) {	3145	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	3146	next unless $info->{smooth};
2490	my $idx = cf::face::find $face	3147	my $idx = cf::face::find $face
2491	or next;	3148	or next;
2492	if (my $smooth = cf::face::find $info->{smooth}) {	3149	if (my $smooth = cf::face::find $info->{smooth}) {
		3150	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3151	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	3152	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	3153	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	3154	}
2497	Coro::cede;	3155
		3156	cf::cede_to_tick;
2498	}	3157	}
2499	}	3158	}
2500		3159
2501	{	3160	{
2502	my $anims = $facedata->{animinfo};	3161	my $anims = $facedata->{animinfo};
2503		3162
2504	while (my ($anim, $info) = each %$anims) {	3163	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	3164	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	3165	cf::cede_to_tick;
2507	}	3166	}
2508		3167
2509	cf::anim::invalidate_all; # d'oh	3168	cf::anim::invalidate_all; # d'oh
2510	}	3169	}
2511		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 => $face;
		3216	}
		3217	}
		3218	}
		3219
2512	1	3220	1
2513	}	3221	}
2514		3222
		3223	register_exticmd fx_want => sub {
		3224	my ($ns, $want) = @_;
		3225
		3226	while (my ($k, $v) = each %$want) {
		3227	$ns->fx_want ($k, $v);
		3228	}
		3229	};
		3230
2515	sub reload_regions {	3231	sub reload_regions {
		3232	# HACK to clear player env face cache, we need some signal framework
		3233	# for this (global event?)
		3234	%ext::player_env::MUSIC_FACE_CACHE = ();
		3235
2516	load_resource_file "$MAPDIR/regions"	3236	load_resource_file "$MAPDIR/regions"
2517	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 $_->{match};
		3242	}
2518	}	3243	}
2519		3244
2520	sub reload_facedata {	3245	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	3246	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	3247	or die "unable to load facedata\n";
2523	}	3248	}
2524		3249
2525	sub reload_archetypes {	3250	sub reload_archetypes {
2526	load_resource_file "$DATADIR/archetypes"	3251	load_resource_file "$DATADIR/archetypes"
2527	or die "unable to load archetypes\n";	3252	or die "unable to load archetypes\n";
		3253	#d# NEED to laod twice to resolve forward references
		3254	# this really needs to be done in an extra post-pass
		3255	# (which needs to be synchronous, so solve it differently)
		3256	load_resource_file "$DATADIR/archetypes"
		3257	or die "unable to load archetypes\n";
2528	}	3258	}
2529		3259
2530	sub reload_treasures {	3260	sub reload_treasures {
2531	load_resource_file "$DATADIR/treasures"	3261	load_resource_file "$DATADIR/treasures"
2532	or die "unable to load treasurelists\n";	3262	or die "unable to load treasurelists\n";
…		…
2535	sub reload_resources {	3265	sub reload_resources {
2536	warn "reloading resource files...\n";	3266	warn "reloading resource files...\n";
2537		3267
2538	reload_regions;	3268	reload_regions;
2539	reload_facedata;	3269	reload_facedata;
		3270	#reload_archetypes;#d#
2540	reload_archetypes;	3271	reload_archetypes;
2541	reload_treasures;	3272	reload_treasures;
2542		3273
2543	warn "finished reloading resource files\n";	3274	warn "finished reloading resource files\n";
2544	}	3275	}
2545		3276
2546	sub init {	3277	sub init {
2547	reload_resources;	3278	reload_resources;
2548	}	3279	}
2549		3280
2550	sub cfg_load {	3281	sub reload_config {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3282	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3283	or return;
2553		3284
2554	local $/;	3285	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3286	*CFG = YAML::Syck::Load <$fh>;
…		…
2571	sub main {	3302	sub main {
2572	# we must not ever block the main coroutine	3303	# we must not ever block the main coroutine
2573	local $Coro::idle = sub {	3304	local $Coro::idle = sub {
2574	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#
2575	(async {	3306	(async {
		3307	$Coro::current->{desc} = "IDLE BUG HANDLER";
2576	Event::one_event;	3308	Event::one_event;
2577	})->prio (Coro::PRIO_MAX);	3309	})->prio (Coro::PRIO_MAX);
2578	};	3310	};
2579		3311
2580	cfg_load;	3312	reload_config;
2581	db_init;	3313	db_init;
2582	load_extensions;	3314	load_extensions;
2583		3315
2584	$TICK_WATCHER->start;	3316	$TICK_WATCHER->start;
2585	Event::loop;	3317	Event::loop;
…		…
2601	},	3333	},
2602	);	3334	);
2603	}	3335	}
2604	}	3336	}
2605		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
2606	sub emergency_save() {	3376	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3377	my $freeze_guard = cf::freeze_mainloop;
2608		3378
2609	warn "enter emergency perl save\n";	3379	warn "enter emergency perl save\n";
2610		3380
…		…
2614	# and maps saved/destroyed asynchronously.	3384	# and maps saved/destroyed asynchronously.
2615	warn "begin emergency player save\n";	3385	warn "begin emergency player save\n";
2616	for my $login (keys %cf::PLAYER) {	3386	for my $login (keys %cf::PLAYER) {
2617	my $pl = $cf::PLAYER{$login} or next;	3387	my $pl = $cf::PLAYER{$login} or next;
2618	$pl->valid or next;	3388	$pl->valid or next;
		3389	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2619	$pl->save;	3390	$pl->save;
2620	}	3391	}
2621	warn "end emergency player save\n";	3392	warn "end emergency player save\n";
2622		3393
2623	warn "begin emergency map save\n";	3394	warn "begin emergency map save\n";
…		…
2671		3442
2672	warn "flushing outstanding aio requests";	3443	warn "flushing outstanding aio requests";
2673	for (;;) {	3444	for (;;) {
2674	BDB::flush;	3445	BDB::flush;
2675	IO::AIO::flush;	3446	IO::AIO::flush;
2676	Coro::cede;	3447	Coro::cede_notself;
2677	last unless IO::AIO::nreqs || BDB::nreqs;	3448	last unless IO::AIO::nreqs || BDB::nreqs;
2678	warn "iterate...";	3449	warn "iterate...";
2679	}	3450	}
2680		3451
2681	++$RELOAD;	3452	++$RELOAD;
…		…
2685	%EXT_CORO = ();	3456	%EXT_CORO = ();
2686		3457
2687	warn "removing commands";	3458	warn "removing commands";
2688	%COMMAND = ();	3459	%COMMAND = ();
2689		3460
2690	warn "removing ext commands";	3461	warn "removing ext/exti commands";
2691	%EXTCMD = ();	3462	%EXTCMD = ();
		3463	%EXTICMD = ();
2692		3464
2693	warn "unloading/nuking all extensions";	3465	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {	3466	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";	3467	warn "... unloading $pkg";
2696		3468
…		…
2739	warn "reloading cf.pm";	3511	warn "reloading cf.pm";
2740	require cf;	3512	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3513	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2742		3514
2743	warn "loading config and database again";	3515	warn "loading config and database again";
2744	cf::cfg_load;	3516	cf::reload_config;
2745		3517
2746	warn "loading extensions";	3518	warn "loading extensions";
2747	cf::load_extensions;	3519	cf::load_extensions;
2748		3520
2749	warn "reattaching attachments to objects/players";	3521	warn "reattaching attachments to objects/players";
…		…
2785	register_command "reload" => sub {	3557	register_command "reload" => sub {
2786	my ($who, $arg) = @_;	3558	my ($who, $arg) = @_;
2787		3559
2788	if ($who->flag (FLAG_WIZ)) {	3560	if ($who->flag (FLAG_WIZ)) {
2789	$who->message ("reloading server.");	3561	$who->message ("reloading server.");
		3562	async {
		3563	$Coro::current->{desc} = "perl_reload";
2790	async { reload_perl };	3564	reload_perl;
		3565	};
2791	}	3566	}
2792	};	3567	};
2793		3568
2794	unshift @INC, $LIBDIR;	3569	unshift @INC, $LIBDIR;
2795		3570
…		…
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3602	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3603	unless ++$bug_warning > 10;
2829	return;	3604	return;
2830	}	3605	}
2831		3606
2832	$NOW = Event::time;	3607	$NOW = $tick_start = Event::time;
2833		3608
2834	cf::server_tick; # one server iteration	3609	cf::server_tick; # one server iteration
2835		3610
2836	$RUNTIME += $TICK;	3611	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;	3612	$NEXT_TICK += $TICK;
2838		3613
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3614	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2840	$NEXT_RUNTIME_WRITE = $NOW + 10;	3615	$NEXT_RUNTIME_WRITE = $NOW + 10;
2841	Coro::async_pool {	3616	Coro::async_pool {
		3617	$Coro::current->{desc} = "runtime saver";
2842	write_runtime	3618	write_runtime
2843	or warn "ERROR: unable to write runtime file: $!";	3619	or warn "ERROR: unable to write runtime file: $!";
2844	};	3620	};
2845	}	3621	}
2846		3622
2847	# my $AFTER = Event::time;	3623	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2848	# 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;
2849		3631
2850	# 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
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3633	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2852		3634
2853	$TICK_WATCHER->at ($NEXT_TICK);	3635	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;	3636	$TICK_WATCHER->start;
2855		3637
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3638	$LOAD = ($NOW - $tick_start) / $TICK;
2857	$sig->send;	3639	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2858	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;
2861	}
2862		3640
2863	_post_tick;	3641	_post_tick;
2864	},	3642	},
2865	);	3643	);
2866		3644
2867	{	3645	{
		3646	BDB::min_parallel 8;
2868	BDB::max_poll_time $TICK * 0.1;	3647	BDB::max_poll_time $TICK * 0.1;
2869	$BDB_POLL_WATCHER = Event->io (	3648	$BDB_POLL_WATCHER = Event->io (
2870	reentrant => 0,	3649	reentrant => 0,
2871	fd => BDB::poll_fileno,	3650	fd => BDB::poll_fileno,
2872	poll => 'r',	3651	poll => 'r',
2873	prio => 0,	3652	prio => 0,
2874	data => WF_AUTOCANCEL,	3653	data => WF_AUTOCANCEL,
2875	cb => \&BDB::poll_cb,	3654	cb => \&BDB::poll_cb,
2876	);	3655	);
2877	BDB::min_parallel 8;
2878		3656
2879	BDB::set_sync_prepare {	3657	BDB::set_sync_prepare {
2880	my $status;	3658	my $status;
2881	my $current = $Coro::current;	3659	my $current = $Coro::current;
2882	(	3660	(
…		…
2891	)	3669	)
2892	};	3670	};
2893		3671
2894	unless ($DB_ENV) {	3672	unless ($DB_ENV) {
2895	$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);
2896		3678
2897	cf::sync_job {	3679	cf::sync_job {
2898	eval {	3680	eval {
2899	BDB::db_env_open	3681	BDB::db_env_open
2900	$DB_ENV,	3682	$DB_ENV,
…		…
2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3684	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3685	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2904	0666;	3686	0666;
2905		3687
2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3688	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2907
2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2909	$DB_ENV->set_lk_detect;
2910	};	3689	};
2911		3690
2912	cf::cleanup "db_env_open(db): $@" if $@;	3691	cf::cleanup "db_env_open(db): $@" if $@;
2913	};	3692	};
2914	}	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	);
2915	}	3725	}
2916		3726
2917	{	3727	{
2918	IO::AIO::min_parallel 8;	3728	IO::AIO::min_parallel 8;
2919		3729
…		…
2922	$AIO_POLL_WATCHER = Event->io (	3732	$AIO_POLL_WATCHER = Event->io (
2923	reentrant => 0,	3733	reentrant => 0,
2924	data => WF_AUTOCANCEL,	3734	data => WF_AUTOCANCEL,
2925	fd => IO::AIO::poll_fileno,	3735	fd => IO::AIO::poll_fileno,
2926	poll => 'r',	3736	poll => 'r',
2927	prio => 6,	3737	prio => 0,
2928	cb => \&IO::AIO::poll_cb,	3738	cb => \&IO::AIO::poll_cb,
2929	);	3739	);
2930	}	3740	}
2931		3741
2932	my $_log_backtrace;	3742	my $_log_backtrace;
…		…
2938		3748
2939	# limit the # of concurrent backtraces	3749	# limit the # of concurrent backtraces
2940	if ($_log_backtrace < 2) {	3750	if ($_log_backtrace < 2) {
2941	++$_log_backtrace;	3751	++$_log_backtrace;
2942	async {	3752	async {
		3753	$Coro::current->{desc} = "abt $msg";
		3754
2943	my @bt = fork_call {	3755	my @bt = fork_call {
2944	@addr = map { sprintf "%x", $_ } @addr;	3756	@addr = map { sprintf "%x", $_ } @addr;
2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3757	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3758	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947	or die "addr2line: $!";	3759	or die "addr2line: $!";

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