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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.395 by root, Sat Nov 10 22:41:59 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/deliantra-server/config>, or
147	from wherever your confdir points to.	168	from wherever your confdir points to.
148		169
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
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 Deliantra 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 Deliantra 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 $runtime = "$LOCALDIR/runtime";
373		492
374	# first touch the runtime file to show we are still running:	493	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	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.
376		497
377	warn "touching runtime...\n";#d#	498	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	499
379	utime undef, undef, $fh;	500	sub fork_call(&@) {
		501	my ($cb, @args) = @_;
		502
		503	# we seemingly have to make a local copy of the whole thing,
		504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
		506
		507	my @res = Coro::Util::fork_eval {
		508	reset_signals;
		509	&$cb
		510	}, @args;
		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
380	}	542	};
		543	cf::cleanup "db_open(db): $@" if $@;
381		544
382	my $guard = cf::lock_acquire "write_runtime";	545	$db
		546	}
383		547
384	warn "starting to write runtime...\n";#d#	548	our $DB;
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
386	or return;
387		549
388	my $value = $cf::RUNTIME + 90 + 10;	550	sub db_init {
389	# 10 is the runtime save interval, for a monotonic clock	551	cf::sync_job {
390	# 60 allows for the watchdog to kill the server.	552	$DB ||= db_table "db";
		553	};
		554	}
391		555
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0	556	sub db_get($$) {
393	and return;	557	my $key = "$_[0]/$_[1]";
394		558
395	# always fsync - this file is important	559	cf::sync_job {
396	aio_fsync $fh	560	BDB::db_get $DB, undef, $key, my $data;
397	and return;
398		561
399	# touch it again to show we are up-to-date	562	$! ? ()
400	utime undef, undef, $fh;	563	: $data
401
402	close $fh
403	or return;
404
405	aio_rename "$runtime~", $runtime
406	and return;
407
408	warn "... done writing runtime.\n";#d#
409
410	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"
411	}	640	}
412		641
413	=item cf::datalog type => key => value, ...	642	=item cf::datalog type => key => value, ...
414		643
415	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.
…		…
433	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")
434	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
435		664
436	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>
437	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
438	crossfire+).	667	Deliantra).
439		668
440	=over 4	669	=over 4
441		670
442	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
443		672
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
607		836
608	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		841
613	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	843	my $pkg = shift @arg;
615		844
616	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
646	}	875	}
647		876
648	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
649	} else {	878	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	880	}
652		881
653	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
654	}	883	}
655		884
…		…
657	if (ref $_[0]) {	886	if (ref $_[0]) {
658	_object_attach @_;	887	_object_attach @_;
659	} else {	888	} else {
660	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
661	}	890	}
		891	_recalc_want;
662	};	892	};
663		893
664	# all those should be optimised	894	# all those should be optimised
665	sub cf::attachable::detach {	895	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
670	reattach ($obj);	900	reattach ($obj);
671	} else {	901	} else {
672	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
673	}	903	}
		904	_recalc_want;
674	};	905	};
675		906
676	sub cf::attachable::attached {	907	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
678		909
…		…
693	";	924	";
694	die if $@;	925	die if $@;
695	}	926	}
696		927
697	our $override;	928	our $override;
698	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?
699		930
700	sub override {	931	sub override {
701	$override = 1;	932	$override = 1;
702	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
703	}	934	}
704		935
705	sub do_invoke {	936	sub do_invoke {
706	my $event = shift;	937	my $event = shift;
707	my $callbacks = shift;	938	my $callbacks = shift;
708		939
709	@invoke_results = ();	940	@INVOKE_RESULTS = ();
710		941
711	local $override;	942	local $override;
712		943
713	for (@$callbacks) {	944	for (@$callbacks) {
714	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
731		962
732	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
733		964
734	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
735	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
736	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		968
738	=back	969	=back
739		970
740	=cut	971	=cut
741		972
742	#############################################################################	973	#############################################################################
743	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
744		1017
745	sub reattach {	1018	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	1020	my ($obj) = @_;
748		1021
…		…
795	sub object_freezer_save {	1068	sub object_freezer_save {
796	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
797		1070
798	sync_job {	1071	sync_job {
799	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
800	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
801	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
802		1076
803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
804	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
806	aio_fsync $fh if $cf::USE_FSYNC;	1080	aio_fsync $fh if $cf::USE_FSYNC;
807	close $fh;	1081	close $fh;
808		1082
809	if (@$objs) {	1083	if (@$objs) {
810	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) {
811	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
812	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
813	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
814	aio_fsync $fh if $cf::USE_FSYNC;	1088	aio_fsync $fh if $cf::USE_FSYNC;
815	close $fh;	1089	close $fh;
816	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
817	}	1091	}
…		…
825	}	1099	}
826	} else {	1100	} else {
827	aio_unlink $filename;	1101	aio_unlink $filename;
828	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
829	}	1103	}
830	}	1104	};
831	}	1105	}
832		1106
833	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
834	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
835		1109
…		…
847	or return;	1121	or return;
848		1122
849	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
850	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
851	or return;	1125	or return;
		1126
852	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
853	}	1129	}
854		1130
		1131	utf8::decode (my $decname = $filename);
855	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
857	return ($data, $av);	1135	($data, $av)
858	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
859		1143
860	#############################################################################	1144	#############################################################################
861	# command handling &c	1145	# command handling &c
862		1146
863	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1161	}
878		1162
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1164
881	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.
882		1170
883	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
884	called.	1172	called.
885		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
886	=cut	1185	=cut
887		1186
888	sub register_extcmd {	1187	sub register_extcmd {
889	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
890		1189
891	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
892	}	1197	}
893		1198
894	cf::player->attach (	1199	cf::player->attach (
895	on_command => sub {	1200	on_command => sub {
896	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
905	cf::override;	1210	cf::override;
906	},	1211	},
907	on_extcmd => sub {	1212	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
909		1214
910	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1216
912	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
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
915	$pl->ext_reply ($msg->{msgid}, %reply);
916	}
917	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
918	} else {	1232	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1234	}
921		1235
922	cf::override;	1236	cf::override;
923	},	1237	},
924	);	1238	);
925		1239
926	sub load_extension {
927	my ($path) = @_;
928
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
930	my $base = $1;
931	my $pkg = $1;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}
954	die $@;
955	}
956
957	push @EXTS, $pkg;
958	}
959
960	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
961	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1245	next unless -r $path;
963	eval {	1246
964	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;
965	1	1304	}
966	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
967	}	1310	};
968	}	1311	}
969		1312
970	#############################################################################	1313	#############################################################################
971		1314
		1315	=back
		1316
972	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
973		1318
974	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
975		1320
976	=cut	1321	=cut
…		…
980	use Coro::AIO;	1325	use Coro::AIO;
981		1326
982	=head3 cf::player	1327	=head3 cf::player
983		1328
984	=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	}
985		1344
986	=item cf::player::find $login	1345	=item cf::player::find $login
987		1346
988	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
989		1348
…		…
1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1028	aio_unlink +(playerdir $login) . "/$login.pl";	1387	aio_unlink +(playerdir $login) . "/$login.pl";
1029		1388
1030	my $pl = load_pl path $login	1389	my $f = new_from_file cf::object::thawer path $login
1031	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;
1032	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1033	}	1397	}
1034	}	1398	}
1035	}	1399	}
1036		1400
…		…
1046		1410
1047	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1048	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1049		1413
1050	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1051	Coro::cede;	1415	cf::cede_to_tick;
1052	}	1416	}
1053		1417
1054	sub new($) {	1418	sub new($) {
1055	my ($login) = @_;	1419	my ($login) = @_;
1056		1420
…		…
1060	$self->{deny_save} = 1;	1424	$self->{deny_save} = 1;
1061		1425
1062	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1063		1427
1064	$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 (@_);
1065	}	1439	}
1066		1440
1067	=item $pl->quit_character	1441	=item $pl->quit_character
1068		1442
1069	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
…		…
1124	or return [];	1498	or return [];
1125		1499
1126	my @logins;	1500	my @logins;
1127		1501
1128	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") {
1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1130	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1131	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1132		1511
1133	utf8::decode $login;	1512	utf8::decode $login;
1134	push @logins, $login;	1513	push @logins, $login;
1135	}	1514	}
1136		1515
…		…
1163	}	1542	}
1164		1543
1165	\@paths	1544	\@paths
1166	}	1545	}
1167		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	# match a pod interior sequence sans C<< >>
		1558	(?:
		1559	\ (.*?)\ (?{ $group = $^N })
		1560	| < (??{$interior}) >
		1561	)
		1562	}x;
		1563
		1564	sub expand_cfpod {
		1565	my ($self, $pod) = @_;
		1566
		1567	my $xml;
		1568
		1569	while () {
		1570	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1571	$group = $1;
		1572
		1573	$group =~ s/&/&amp;/g;
		1574	$group =~ s/</&lt;/g;
		1575
		1576	$xml .= $group;
		1577	} elsif ($pod =~ m%\G
		1578	([BCGHITU])
		1579	<
		1580	(?:
		1581	([^<>]*) (?{ $group = $^N })
		1582	| < $interior >
		1583	)
		1584	>
		1585	%gcsx
		1586	) {
		1587	my ($code, $data) = ($1, $group);
		1588
		1589	if ($code eq "B") {
		1590	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1591	} elsif ($code eq "I") {
		1592	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1593	} elsif ($code eq "U") {
		1594	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1595	} elsif ($code eq "C") {
		1596	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1597	} elsif ($code eq "T") {
		1598	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1599	} elsif ($code eq "G") {
		1600	my ($male, $female) = split /\|/, $data;
		1601	$data = $self->gender ? $female : $male;
		1602	$xml .= expand_cfpod ($self, $data);
		1603	} elsif ($code eq "H") {
		1604	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1605	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1606	"")
		1607	[$self->{hintmode}];
		1608	} else {
		1609	$xml .= "error processing '$code($data)' directive";
		1610	}
		1611	} else {
		1612	if ($pod =~ /\G(.+)/) {
		1613	warn "parse error while expanding $pod (at $1)";
		1614	}
		1615	last;
		1616	}
		1617	}
		1618
		1619	for ($xml) {
		1620	# create single paragraphs (very hackish)
		1621	s/(?<=\S)\n(?=\w)/ /g;
		1622
		1623	# compress some whitespace
		1624	s/\s+\n/\n/g; # ws line-ends
		1625	s/\n\n+/\n/g; # double lines
		1626	s/^\n+//; # beginning lines
		1627	s/\n+$//; # ending lines
		1628	}
		1629
		1630	$xml
		1631	}
		1632
		1633	no re 'eval';
		1634
		1635	sub hintmode {
		1636	$_[0]{hintmode} = $_[1] if @_ > 1;
		1637	$_[0]{hintmode}
		1638	}
		1639
1168	=item $player->ext_reply ($msgid, %msg)	1640	=item $player->ext_reply ($msgid, @msg)
1169		1641
1170	Sends an ext reply to the player.	1642	Sends an ext reply to the player.
1171		1643
1172	=cut	1644	=cut
1173		1645
1174	sub ext_reply($$%) {	1646	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1647	my ($self, $id, @msg) = @_;
1176		1648
1177	$msg{msgid} = $id;	1649	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1650	}
1181		1651
1182	=item $player->ext_event ($type, %msg)	1652	=item $player->ext_msg ($type, @msg)
1183		1653
1184	Sends an ext event to the client.	1654	Sends an ext event to the client.
1185		1655
1186	=cut	1656	=cut
1187		1657
1188	sub ext_event($$%) {	1658	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1659	my ($self, $type, @msg) = @_;
1190		1660
1191	$self->ns->ext_event ($type, %msg);	1661	$self->ns->ext_msg ($type, @msg);
1192	}	1662	}
1193		1663
1194	=head3 cf::region	1664	=head3 cf::region
1195		1665
1196	=over 4	1666	=over 4
…		…
1199		1669
1200	package cf::region;	1670	package cf::region;
1201		1671
1202	=item cf::region::find_by_path $path	1672	=item cf::region::find_by_path $path
1203		1673
1204	Tries to decuce the probable region for a map knowing only its path.	1674	Tries to decuce the likely region for a map knowing only its path.
1205		1675
1206	=cut	1676	=cut
1207		1677
1208	sub find_by_path($) {	1678	sub find_by_path($) {
1209	my ($path) = @_;	1679	my ($path) = @_;
1210		1680
1211	my ($match, $specificity);	1681	my ($match, $specificity);
1212		1682
1213	for my $region (list) {	1683	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1684	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1685	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1686	if $region->specificity > $specificity;
1217	}	1687	}
1218	}	1688	}
1219		1689
…		…
1283	my ($self, $merge) = @_;	1753	my ($self, $merge) = @_;
1284		1754
1285	# we have to keep some variables in memory intact	1755	# we have to keep some variables in memory intact
1286	local $self->{path};	1756	local $self->{path};
1287	local $self->{load_path};	1757	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1758
1291	$self->SUPER::thawer_merge ($merge);	1759	$self->SUPER::thawer_merge ($merge);
1292	}	1760	}
1293		1761
1294	sub normalise {	1762	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1809	$self->init; # pass $1 etc.
1342	return $self;	1810	return $self;
1343	}	1811	}
1344	}	1812	}
1345		1813
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1814	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1815	()
1348	}	1816	}
1349		1817
1350	sub init {	1818	sub init {
1351	my ($self) = @_;	1819	my ($self) = @_;
…		…
1394		1862
1395	$_->change_map_light ($change)	1863	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1864	for grep $_->outdoor, values %cf::MAP;
1397	}	1865	}
1398		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
1399	sub unlink_save {	1875	sub unlink_save {
1400	my ($self) = @_;	1876	my ($self) = @_;
1401		1877
1402	utf8::encode (my $save = $self->save_path);	1878	utf8::encode (my $save = $self->save_path);
1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1406		1882
1407	sub load_header_from($) {	1883	sub load_header_from($) {
1408	my ($self, $path) = @_;	1884	my ($self, $path) = @_;
1409		1885
1410	utf8::encode $path;	1886	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	1888	or return;
		1889
		1890	$self->_load_header ($f)
		1891	or return;
		1892
		1893	local $MAP_LOADING{$self->{path}} = $self;
		1894	$f->resolve_delayed_derefs;
1416		1895
1417	$self->{load_path} = $path;	1896	$self->{load_path} = $path;
1418		1897
1419	1	1898	1
1420	}	1899	}
…		…
1459	$self->load_header_orig	1938	$self->load_header_orig
1460	or return;	1939	or return;
1461	$self->prepare_orig;	1940	$self->prepare_orig;
1462	}	1941	}
1463		1942
		1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
		1945
1464	$self->default_region (cf::region::find_by_path $self->{path})	1946	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1947	unless $self->default_region;
1466		1948
1467	1	1949	1
1468	}	1950	}
…		…
1471	sub find {	1953	sub find {
1472	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1473		1955
1474	$path = normalise $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1475		1957
		1958	cf::lock_wait "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	1959	cf::lock_wait "map_find:$path";
1477		1960
1478	$cf::MAP{$path} || do {	1961	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";	1962	my $guard1 = cf::lock_acquire "map_find:$path";
		1963	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1964
1480	my $map = new_from_path cf::map $path	1965	my $map = new_from_path cf::map $path
1481	or return;	1966	or return;
1482		1967
1483	$map->{last_save} = $cf::RUNTIME;	1968	$map->{last_save} = $cf::RUNTIME;
1484		1969
1485	$map->load_header	1970	$map->load_header
1486	or return;	1971	or return;
1487		1972
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1973	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1974	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1975	#$cf::WAIT_FOR_TICK->wait;
		1976	undef $guard1;
		1977	undef $guard2;
1491	$map->reset;	1978	$map->reset;
1492	undef $guard;
1493	return find $path;	1979	return find $path;
1494	}	1980	}
1495		1981
1496	$cf::MAP{$path} = $map	1982	$cf::MAP{$path} = $map
1497	}	1983	}
…		…
1506	local $self->{deny_reset} = 1; # loading can take a long time	1992	local $self->{deny_reset} = 1; # loading can take a long time
1507		1993
1508	my $path = $self->{path};	1994	my $path = $self->{path};
1509		1995
1510	{	1996	{
1511	my $guard = cf::lock_acquire "map_load:$path";	1997	my $guard = cf::lock_acquire "map_data:$path";
1512		1998
		1999	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	2000	return unless $self->in_memory == cf::MAP_SWAPPED;
1514		2001
1515	$self->in_memory (cf::MAP_LOADING);	2002	$self->in_memory (cf::MAP_LOADING);
1516		2003
1517	$self->alloc;	2004	$self->alloc;
1518		2005
1519	$self->pre_load;	2006	$self->pre_load;
1520	Coro::cede;	2007	cf::cede_to_tick;
1521		2008
		2009	my $f = new_from_file cf::object::thawer $self->{load_path};
		2010	$f->skip_block;
1522	$self->_load_objects ($self->{load_path}, 1)	2011	$self->_load_objects ($f)
1523	or return;	2012	or return;
1524		2013
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2014	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1526	if delete $self->{load_original};	2015	if delete $self->{load_original};
1527		2016
1528	if (my $uniq = $self->uniq_path) {	2017	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2018	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2019	unless (aio_stat $uniq) {
		2020	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2021	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2022	$self->_load_objects ($f);
		2023	$f->resolve_delayed_derefs;
		2024	}
1533	}	2025	}
1534	}	2026	}
1535		2027
1536	Coro::cede;	2028	$f->resolve_delayed_derefs;
		2029
		2030	cf::cede_to_tick;
1537	# now do the right thing for maps	2031	# now do the right thing for maps
1538	$self->link_multipart_objects;	2032	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2033	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2034	unless $self->difficulty;
1541	Coro::cede;	2035	cf::cede_to_tick;
1542		2036
1543	unless ($self->{deny_activate}) {	2037	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2038	$self->decay_objects;
1545	$self->fix_auto_apply;	2039	$self->fix_auto_apply;
1546	$self->update_buttons;	2040	$self->update_buttons;
1547	Coro::cede;	2041	cf::cede_to_tick;
1548	$self->set_darkness_map;	2042	$self->set_darkness_map;
1549	Coro::cede;	2043	cf::cede_to_tick;
1550	$self->activate;	2044	$self->activate;
1551	}	2045	}
		2046
		2047	$self->{last_save} = $cf::RUNTIME;
		2048	$self->last_access ($cf::RUNTIME);
1552		2049
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2050	$self->in_memory (cf::MAP_IN_MEMORY);
1554	}	2051	}
1555		2052
1556	$self->post_load;	2053	$self->post_load;
…		…
1560	my ($self, $ob) = @_;	2057	my ($self, $ob) = @_;
1561		2058
1562	return find "~" . $ob->name . "/" . $self->{path}	2059	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2060	if $self->per_player;
1564		2061
		2062	# return find "?party/" . $ob->name . "/" . $self->{path}
		2063	# if $self->per_party;
		2064
1565	$self	2065	$self
1566	}	2066	}
1567		2067
1568	# find and load all maps in the 3x3 area around a map	2068	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	2069	sub load_neighbours {
1570	my ($map) = @_;	2070	my ($map) = @_;
1571		2071
1572	my @diag; # diagonal neighbours	2072	my @neigh; # diagonal neighbours
1573		2073
1574	for (0 .. 3) {	2074	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)	2075	my $neigh = $map->tile_path ($_)
1576	or next;	2076	or next;
1577	$neigh = find $neigh, $map	2077	$neigh = find $neigh, $map
1578	or next;	2078	or next;
1579	$neigh->load;	2079	$neigh->load;
1580		2080
		2081	push @neigh,
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2082	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2083	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}	2084	}
1584		2085
1585	for (@diag) {	2086	for (grep defined $_->[0], @neigh) {
		2087	my ($path, $origin) = @$_;
1586	my $neigh = find @$_	2088	my $neigh = find $path, $origin
1587	or next;	2089	or next;
1588	$neigh->load;	2090	$neigh->load;
1589	}	2091	}
1590	}	2092	}
1591		2093
…		…
1596	}	2098	}
1597		2099
1598	sub do_load_sync {	2100	sub do_load_sync {
1599	my ($map) = @_;	2101	my ($map) = @_;
1600		2102
		2103	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2104	if $Coro::current == $Coro::main;
		2105
1601	cf::sync_job { $map->load };	2106	cf::sync_job { $map->load };
1602	}	2107	}
1603		2108
1604	our %MAP_PREFETCH;	2109	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2110	our $MAP_PREFETCHER = undef;
1606		2111
1607	sub find_async {	2112	sub find_async {
1608	my ($path, $origin) = @_;	2113	my ($path, $origin, $load) = @_;
1609		2114
1610	$path = normalise $path, $origin && $origin->{path};	2115	$path = normalise $path, $origin && $origin->{path};
1611		2116
1612	if (my $map = $cf::MAP{$path}) {	2117	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2118	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1614	}	2119	}
1615		2120
1616	undef $MAP_PREFETCH{$path};	2121	$MAP_PREFETCH{$path} |= $load;
		2122
1617	$MAP_PREFETCHER ||= cf::async {	2123	$MAP_PREFETCHER ||= cf::async {
		2124	$Coro::current->{desc} = "map prefetcher";
		2125
1618	while (%MAP_PREFETCH) {	2126	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2127	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2128	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2129	$map->load if $v;
		2130	}
1623		2131
1624	delete $MAP_PREFETCH{$path};	2132	delete $MAP_PREFETCH{$k};
1625	}	2133	}
1626	}	2134	}
1627	undef $MAP_PREFETCHER;	2135	undef $MAP_PREFETCHER;
1628	};	2136	};
1629	$MAP_PREFETCHER->prio (6);	2137	$MAP_PREFETCHER->prio (6);
…		…
1632	}	2140	}
1633		2141
1634	sub save {	2142	sub save {
1635	my ($self) = @_;	2143	my ($self) = @_;
1636		2144
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;	2145	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2146
1639	$self->{last_save} = $cf::RUNTIME;	2147	$self->{last_save} = $cf::RUNTIME;
1640		2148
1641	return unless $self->dirty;	2149	return unless $self->dirty;
1642		2150
…		…
1648	return if $self->{deny_save};	2156	return if $self->{deny_save};
1649		2157
1650	local $self->{last_access} = $self->last_access;#d#	2158	local $self->{last_access} = $self->last_access;#d#
1651		2159
1652	cf::async {	2160	cf::async {
		2161	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2162	$_->contr->save for $self->players;
1654	};	2163	};
1655		2164
1656	if ($uniq) {	2165	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1665	my ($self) = @_;	2174	my ($self) = @_;
1666		2175
1667	# save first because save cedes	2176	# save first because save cedes
1668	$self->save;	2177	$self->save;
1669		2178
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2180
1672	return if $self->players;	2181	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_IN_MEMORY;
1674	return if $self->{deny_save};	2183	return if $self->{deny_save};
1675		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1676	$self->clear;	2189	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2190	}
1679		2191
1680	sub reset_at {	2192	sub reset_at {
1681	my ($self) = @_;	2193	my ($self) = @_;
1682		2194
1683	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1686		2197
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2200
…		…
1700	my ($self) = @_;	2211	my ($self) = @_;
1701		2212
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2214
1704	return if $self->players;	2215	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2216
1707	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
1708		2218
1709	$self->in_memory (cf::MAP_SWAPPED);	2219	$self->in_memory (cf::MAP_SWAPPED);
1710		2220
1711	# need to save uniques path	2221	# need to save uniques path
1712	unless ($self->{deny_save}) {	2222	unless ($self->{deny_save}) {
…		…
1716	if $uniq;	2226	if $uniq;
1717	}	2227	}
1718		2228
1719	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1720		2230
		2231	$self->deactivate;
		2232	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2233	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2234
1725	$self->unlink_save;	2235	$self->unlink_save;
1726	$self->destroy;	2236	$self->destroy;
1727	}	2237	}
1728		2238
1729	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1730		2240
1731	sub nuke {	2241	sub nuke {
1732	my ($self) = @_;	2242	my ($self) = @_;
1733		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
1734	delete $cf::MAP{$self->path};	2247	delete $cf::MAP{$self->path};
1735		2248
1736	$self->unlink_save;	2249	$self->unlink_save;
1737		2250
1738	bless $self, "cf::map";	2251	bless $self, "cf::map";
1739	delete $self->{deny_reset};	2252	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2256
1744	$cf::MAP{$self->path} = $self;	2257	$cf::MAP{$self->path} = $self;
		2258	}
1745		2259
1746	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
		2261	}
		2262
		2263	=item $maps = cf::map::tmp_maps
		2264
		2265	Returns an arrayref with all map paths of currently instantiated and saved
		2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
		2271	[
		2272	map {
		2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
		2279	}
		2280
		2281	=item $maps = cf::map::random_maps
		2282
		2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
		2285
		2286	=cut
		2287
		2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
1747	}	2297	}
1748		2298
1749	=item cf::map::unique_maps	2299	=item cf::map::unique_maps
1750		2300
1751	Returns an arrayref of paths of all shared maps that have	2301	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2302	instantiated unique items. May block.
1753		2303
1754	=cut	2304	=cut
1755		2305
1756	sub unique_maps() {	2306	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2307	[
1758	or return;	2308	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2309	utf8::decode $_;
1764	next if /\.pst$/;	2310	/\.map$/
1765	next unless /^$PATH_SEP/o;	2311	? normalise $_
1766		2312	: ()
1767	push @paths, cf::map::normalise $_;	2313	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2314	]
1769
1770	\@paths
1771	}	2315	}
1772		2316
1773	package cf;	2317	package cf;
1774		2318
1775	=back	2319	=back
…		…
1793	map { $_, inv_recursive_ $_->inv } @_	2337	map { $_, inv_recursive_ $_->inv } @_
1794	}	2338	}
1795		2339
1796	sub inv_recursive {	2340	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	creates and returns a persistent reference to an objetc that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
1798	}	2370	}
1799		2371
1800	package cf;	2372	package cf;
1801		2373
1802	=back	2374	=back
…		…
1821		2393
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2394	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2395
1824	if ($self->{record_replies}) {	2396	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2397	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2398
1826	} else {	2399	} else {
		2400	my $pl = $self->contr;
		2401
		2402	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2403	my $dialog = $pl->{npc_dialog};
		2404	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2405
		2406	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2407	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2408	$self->message ($msg, $flags);
		2409	}
1829	}	2410	}
		2411	}
		2412
		2413	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2414
		2415	=cut
		2416
		2417	sub cf::object::send_msg {
		2418	my $pl = shift->contr
		2419	or return;
		2420	$pl->send_msg (@_);
1830	}	2421	}
1831		2422
1832	=item $player_object->may ("access")	2423	=item $player_object->may ("access")
1833		2424
1834	Returns wether the given player is authorized to access resource "access"	2425	Returns wether the given player is authorized to access resource "access"
…		…
1881	$self->deactivate_recursive;	2472	$self->deactivate_recursive;
1882		2473
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2474	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2475
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2476	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2477	if $self->map && $self->map->{path} ne "{link}";
1887		2478
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2479	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1889	}	2480	}
1890		2481
1891	sub cf::object::player::leave_link {	2482	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2483	my ($self, $map, $x, $y) = @_;
		2484
		2485	return unless $self->contr->active;
1893		2486
1894	my $link_pos = delete $self->{_link_pos};	2487	my $link_pos = delete $self->{_link_pos};
1895		2488
1896	unless ($map) {	2489	unless ($map) {
1897	# restore original map position	2490	# restore original map position
…		…
1911	# use -1 or undef as default coordinates, not 0, 0	2504	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2505	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2506	if $x <=0 && $y <= 0;
1914		2507
1915	$map->load;	2508	$map->load;
1916	$map->load_diag;	2509	$map->load_neighbours;
1917		2510
1918	return unless $self->contr->active;	2511	return unless $self->contr->active;
1919	$self->activate_recursive;	2512	$self->activate_recursive;
1920		2513
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2514	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2515	$self->enter_map ($map, $x, $y);
1923	}	2516	}
1924		2517
1925	cf::player->attach (	2518	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1926	on_logout => sub {
1927	my ($pl) = @_;
1928		2519
1929	# abort map switching before logout	2520	Moves the player to the given map-path and coordinates by first freezing
1930	if ($pl->ob->{_link_pos}) {	2521	her, loading and preparing them map, calling the provided $check callback
1931	cf::sync_job {	2522	that has to return the map if sucecssful, and then unfreezes the player on
1932	$pl->ob->leave_link	2523	the new (success) or old (failed) map position. In either case, $done will
1933	};	2524	be called at the end of this process.
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2525
1939	# try to abort aborted map switching on player login :)
1940	# should happen only on crashes
1941	if ($pl->ob->{_link_pos}) {
1942	$pl->ob->enter_link;
1943	(async {
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956
1957	=item $player_object->goto ($path, $x, $y)
1958
1959	=cut	2526	=cut
		2527
		2528	our $GOTOGEN;
1960		2529
1961	sub cf::object::player::goto {	2530	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2531	my ($self, $path, $x, $y, $check, $done) = @_;
		2532
		2533	# do generation counting so two concurrent goto's will be executed in-order
		2534	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2535
1964	$self->enter_link;	2536	$self->enter_link;
1965		2537
1966	(async {	2538	(async {
		2539	$Coro::current->{desc} = "player::goto $path $x $y";
		2540
		2541	# *tag paths override both path and x|y
		2542	if ($path =~ /^\*(.*)$/) {
		2543	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2544	my $ob = $obs[rand @obs];
		2545
		2546	# see if we actually can go there
		2547	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2548	$ob = $obs[rand @obs];
		2549	} else {
		2550	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2551	}
		2552	# else put us there anyways for now #d#
		2553
		2554	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2555	} else {
		2556	($path, $x, $y) = (undef, undef, undef);
		2557	}
		2558	}
		2559
1967	my $map = eval {	2560	my $map = eval {
1968	my $map = cf::map::find $path;	2561	my $map = defined $path ? cf::map::find $path : undef;
		2562
		2563	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2564	$map = $map->customise_for ($self);
		2565	$map = $check->($map) if $check && $map;
		2566	} else {
		2567	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
		2569
1970	$map	2570	$map
		2571	};
		2572
		2573	if ($@) {
		2574	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2575	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2576	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2577
		2578	if ($gen == $self->{_goto_generation}) {
		2579	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2580	$self->leave_link ($map, $x, $y);
		2581	}
		2582
		2583	$done->() if $done;
1975	})->prio (1);	2584	})->prio (1);
1976	}	2585	}
1977		2586
1978	=item $player_object->enter_exit ($exit_object)	2587	=item $player_object->enter_exit ($exit_object)
1979		2588
…		…
2048	my $hp = $exit->stats->hp;	2657	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2658	my $sp = $exit->stats->sp;
2050		2659
2051	$self->enter_link;	2660	$self->enter_link;
2052		2661
		2662	# if exit is damned, update players death & WoR home-position
		2663	$self->contr->savebed ($slaying, $hp, $sp)
		2664	if $exit->flag (FLAG_DAMNED);
		2665
2053	(async {	2666	(async {
		2667	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2668
2054	$self->deactivate_recursive; # just to be sure	2669	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2670	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2671	$self->goto ($slaying, $hp, $sp);
2057		2672
2058	1;	2673	1;
…		…
2084		2699
2085	utf8::encode $text;	2700	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2701	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2702	}
2088		2703
		2704	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2705
		2706	Send a drawinfo or msg packet to the client, formatting the msg for the
		2707	client if neccessary. C<$type> should be a string identifying the type of
		2708	the message, with C<log> being the default. If C<$color> is negative, suppress
		2709	the message unless the client supports the msg packet.
		2710
		2711	=cut
		2712
		2713	# non-persistent channels (usually the info channel)
		2714	our %CHANNEL = (
		2715	"c/identify" => {
		2716	id => "infobox",
		2717	title => "Identify",
		2718	reply => undef,
		2719	tooltip => "Items recently identified",
		2720	},
		2721	"c/examine" => {
		2722	id => "infobox",
		2723	title => "Examine",
		2724	reply => undef,
		2725	tooltip => "Signs and other items you examined",
		2726	},
		2727	"c/book" => {
		2728	id => "infobox",
		2729	title => "Book",
		2730	reply => undef,
		2731	tooltip => "The contents of a note or book",
		2732	},
		2733	"c/lookat" => {
		2734	id => "infobox",
		2735	title => "Look",
		2736	reply => undef,
		2737	tooltip => "What you saw there",
		2738	},
		2739	"c/who" => {
		2740	id => "infobox",
		2741	title => "Players",
		2742	reply => undef,
		2743	tooltip => "Shows players who are currently online",
		2744	},
		2745	"c/body" => {
		2746	id => "infobox",
		2747	title => "Body Parts",
		2748	reply => undef,
		2749	tooltip => "Shows which body parts you posess and are available",
		2750	},
		2751	"c/uptime" => {
		2752	id => "infobox",
		2753	title => "Uptime",
		2754	reply => undef,
		2755	tooltip => "How long the server has been running since last restart",
		2756	},
		2757	"c/mapinfo" => {
		2758	id => "infobox",
		2759	title => "Map Info",
		2760	reply => undef,
		2761	tooltip => "Information related to the maps",
		2762	},
		2763	);
		2764
		2765	sub cf::client::send_msg {
		2766	my ($self, $channel, $msg, $color, @extra) = @_;
		2767
		2768	$msg = $self->pl->expand_cfpod ($msg);
		2769
		2770	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2771
		2772	# check predefined channels, for the benefit of C
		2773	if ($CHANNEL{$channel}) {
		2774	$channel = $CHANNEL{$channel};
		2775
		2776	$self->ext_msg (channel_info => $channel)
		2777	if $self->can_msg;
		2778
		2779	$channel = $channel->{id};
		2780
		2781	} elsif (ref $channel) {
		2782	# send meta info to client, if not yet sent
		2783	unless (exists $self->{channel}{$channel->{id}}) {
		2784	$self->{channel}{$channel->{id}} = $channel;
		2785	$self->ext_msg (channel_info => $channel)
		2786	if $self->can_msg;
		2787	}
		2788
		2789	$channel = $channel->{id};
		2790	}
		2791
		2792	return unless @extra || length $msg;
		2793
		2794	if ($self->can_msg) {
		2795	# default colour, mask it out
		2796	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2797	if $color & cf::NDI_DEF;
		2798
		2799	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2800	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2801	} else {
		2802	if ($color >= 0) {
		2803	# replace some tags by gcfclient-compatible ones
		2804	for ($msg) {
		2805	1 while
		2806	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2807	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2808	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2809	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2810	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2811	}
		2812
		2813	$color &= cf::NDI_COLOR_MASK;
		2814
		2815	utf8::encode $msg;
		2816
		2817	if (0 && $msg =~ /\[/) {
		2818	# COMMAND/INFO
		2819	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2820	} else {
		2821	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2822	$self->send_packet ("drawinfo $color $msg")
		2823	}
		2824	}
		2825	}
		2826	}
		2827
2089	=item $client->ext_event ($type, %msg)	2828	=item $client->ext_msg ($type, @msg)
2090		2829
2091	Sends an exti event to the client.	2830	Sends an ext event to the client.
2092		2831
2093	=cut	2832	=cut
2094		2833
2095	sub cf::client::ext_event($$%) {	2834	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	2835	my ($self, $type, @msg) = @_;
2097		2836
		2837	if ($self->extcmd == 2) {
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2839	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	2840	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2841	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2842	}
		2843	}
		2844
		2845	=item $client->ext_reply ($msgid, @msg)
		2846
		2847	Sends an ext reply to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_reply($$@) {
		2852	my ($self, $id, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2856	} elsif ($self->extcmd == 1) {
		2857	#TODO: version 1, remove
		2858	unshift @msg, msgtype => "reply", msgid => $id;
		2859	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2860	}
2100	}	2861	}
2101		2862
2102	=item $success = $client->query ($flags, "text", \&cb)	2863	=item $success = $client->query ($flags, "text", \&cb)
2103		2864
2104	Queues a query to the client, calling the given callback with	2865	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2866	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2867	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2868
2108	Queries can fail, so check the return code. Or don't, as queries will become	2869	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2870	become reliable at some point in the future.
2110		2871
2111	=cut	2872	=cut
2112		2873
2113	sub cf::client::query {	2874	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2875	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2883	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2884	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2885
2125	$self->send_packet ($self->{query_queue}[0][0])	2886	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2887	if @{ $self->{query_queue} } == 1;
		2888
		2889	1
2127	}	2890	}
2128		2891
2129	cf::client->attach (	2892	cf::client->attach (
		2893	on_connect => sub {
		2894	my ($ns) = @_;
		2895
		2896	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2897	},
2130	on_reply => sub {	2898	on_reply => sub {
2131	my ($ns, $msg) = @_;	2899	my ($ns, $msg) = @_;
2132		2900
2133	# this weird shuffling is so that direct followup queries	2901	# this weird shuffling is so that direct followup queries
2134	# get handled first	2902	# get handled first
…		…
2146	} else {	2914	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2915	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2916	}
2149	}	2917	}
2150	},	2918	},
		2919	on_exticmd => sub {
		2920	my ($ns, $buf) = @_;
		2921
		2922	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2923
		2924	if (ref $msg) {
		2925	my ($type, $reply, @payload) =
		2926	"ARRAY" eq ref $msg
		2927	? @$msg
		2928	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2929
		2930	my @reply;
		2931
		2932	if (my $cb = $EXTICMD{$type}) {
		2933	@reply = $cb->($ns, @payload);
		2934	}
		2935
		2936	$ns->ext_reply ($reply, @reply)
		2937	if $reply;
		2938
		2939	} else {
		2940	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2941	}
		2942
		2943	cf::override;
		2944	},
2151	);	2945	);
2152		2946
2153	=item $client->async (\&cb)	2947	=item $client->async (\&cb)
2154		2948
2155	Create a new coroutine, running the specified callback. The coroutine will	2949	Create a new coroutine, running the specified callback. The coroutine will
…		…
2196	our $safe = new Safe "safe";	2990	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	2991	our $safe_hole = new Safe::Hole;
2198		2992
2199	$SIG{FPE} = 'IGNORE';	2993	$SIG{FPE} = 'IGNORE';
2200		2994
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2995	$safe->permit_only (Opcode::opset qw(
		2996	:base_core :base_mem :base_orig :base_math
		2997	grepstart grepwhile mapstart mapwhile
		2998	sort time
		2999	));
2202		3000
2203	# here we export the classes and methods available to script code	3001	# here we export the classes and methods available to script code
2204		3002
2205	=pod	3003	=pod
2206		3004
2207	The following functions and methods are available within a safe environment:	3005	The following functions and methods are available within a safe environment:
2208		3006
2209	cf::object contr pay_amount pay_player map	3007	cf::object
		3008	contr pay_amount pay_player map x y force_find force_add destroy
		3009	insert remove name archname title slaying race decrease_ob_nr
		3010
2210	cf::object::player player	3011	cf::object::player
2211	cf::player peaceful	3012	player
2212	cf::map trigger	3013
		3014	cf::player
		3015	peaceful
		3016
		3017	cf::map
		3018	trigger
2213		3019
2214	=cut	3020	=cut
2215		3021
2216	for (	3022	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3023	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3024	insert remove inv name archname title slaying race
		3025	decrease_ob_nr destroy)],
2218	["cf::object::player" => qw(player)],	3026	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3027	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	3028	["cf::map" => qw(trigger)],
2221	) {	3029	) {
2222	no strict 'refs';	3030	no strict 'refs';
…		…
2293	=back	3101	=back
2294		3102
2295	=cut	3103	=cut
2296		3104
2297	#############################################################################	3105	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470
2471	#############################################################################
2472	# the server's init and main functions	3106	# the server's init and main functions
2473		3107
2474	sub load_facedata($) {	3108	sub load_facedata($) {
2475	my ($path) = @_;	3109	my ($path) = @_;
		3110
		3111	# HACK to clear player env face cache, we need some signal framework
		3112	# for this (global event?)
		3113	%ext::player_env::MUSIC_FACE_CACHE = ();
		3114
		3115	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2476		3116
2477	warn "loading facedata from $path\n";	3117	warn "loading facedata from $path\n";
2478		3118
2479	my $facedata;	3119	my $facedata;
2480	0 < aio_load $path, $facedata	3120	0 < aio_load $path, $facedata
…		…
2483	$facedata = Coro::Storable::thaw $facedata;	3123	$facedata = Coro::Storable::thaw $facedata;
2484		3124
2485	$facedata->{version} == 2	3125	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3126	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3127
		3128	# patch in the exptable
		3129	$facedata->{resource}{"res/exp_table"} = {
		3130	type => FT_RSRC,
		3131	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3132	};
		3133	cf::cede_to_tick;
		3134
2488	{	3135	{
2489	my $faces = $facedata->{faceinfo};	3136	my $faces = $facedata->{faceinfo};
2490		3137
2491	while (my ($face, $info) = each %$faces) {	3138	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3139	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3140	cf::face::set_visibility $idx, $info->{visibility};
		3141	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3142	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3143	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2496	Coro::cede;	3144
		3145	cf::cede_to_tick;
2497	}	3146	}
2498		3147
2499	while (my ($face, $info) = each %$faces) {	3148	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3149	next unless $info->{smooth};
2501	my $idx = cf::face::find $face	3150	my $idx = cf::face::find $face
2502	or next;	3151	or next;
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3152	if (my $smooth = cf::face::find $info->{smooth}) {
		3153	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3154	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3155	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3156	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3157	}
2508	Coro::cede;	3158
		3159	cf::cede_to_tick;
2509	}	3160	}
2510	}	3161	}
2511		3162
2512	{	3163	{
2513	my $anims = $facedata->{animinfo};	3164	my $anims = $facedata->{animinfo};
2514		3165
2515	while (my ($anim, $info) = each %$anims) {	3166	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3167	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3168	cf::cede_to_tick;
2518	}	3169	}
2519		3170
2520	cf::anim::invalidate_all; # d'oh	3171	cf::anim::invalidate_all; # d'oh
2521	}	3172	}
2522		3173
		3174	{
		3175	# TODO: for gcfclient pleasure, we should give resources
		3176	# that gcfclient doesn't grok a >10000 face index.
		3177	my $res = $facedata->{resource};
		3178
		3179	my $soundconf = delete $res->{"res/sound.conf"};
		3180
		3181	while (my ($name, $info) = each %$res) {
		3182	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3183	my $data;
		3184
		3185	if ($info->{type} & 1) {
		3186	# prepend meta info
		3187
		3188	my $meta = $enc->encode ({
		3189	name => $name,
		3190	%{ $info->{meta} || {} },
		3191	});
		3192
		3193	$data = pack "(w/a*)*", $meta, $info->{data};
		3194	} else {
		3195	$data = $info->{data};
		3196	}
		3197
		3198	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3199	cf::face::set_type $idx, $info->{type};
		3200
		3201	cf::cede_to_tick;
		3202	}
		3203
		3204	if ($soundconf) {
		3205	$soundconf = $enc->decode (delete $soundconf->{data});
		3206
		3207	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3208	my $sound = $soundconf->{compat}[$_]
		3209	or next;
		3210
		3211	my $face = cf::face::find "sound/$sound->[1]";
		3212	cf::sound::set $sound->[0] => $face;
		3213	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3214	}
		3215
		3216	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3217	my $face = cf::face::find "sound/$v";
		3218	cf::sound::set $k => $face;
		3219	}
		3220	}
		3221	}
		3222
2523	1	3223	1
2524	}	3224	}
2525		3225
		3226	register_exticmd fx_want => sub {
		3227	my ($ns, $want) = @_;
		3228
		3229	while (my ($k, $v) = each %$want) {
		3230	$ns->fx_want ($k, $v);
		3231	}
		3232	};
		3233
2526	sub reload_regions {	3234	sub reload_regions {
		3235	# HACK to clear player env face cache, we need some signal framework
		3236	# for this (global event?)
		3237	%ext::player_env::MUSIC_FACE_CACHE = ();
		3238
2527	load_resource_file "$MAPDIR/regions"	3239	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3240	or die "unable to load regions file\n";
		3241
		3242	for (cf::region::list) {
		3243	$_->{match} = qr/$_->{match}/
		3244	if exists $_->{match};
		3245	}
2529	}	3246	}
2530		3247
2531	sub reload_facedata {	3248	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3249	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3250	or die "unable to load facedata\n";
2534	}	3251	}
2535		3252
2536	sub reload_archetypes {	3253	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	3254	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	3255	or die "unable to load archetypes\n";
		3256	#d# NEED to laod twice to resolve forward references
		3257	# this really needs to be done in an extra post-pass
		3258	# (which needs to be synchronous, so solve it differently)
		3259	load_resource_file "$DATADIR/archetypes"
		3260	or die "unable to load archetypes\n";
2539	}	3261	}
2540		3262
2541	sub reload_treasures {	3263	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	3264	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	3265	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	3268	sub reload_resources {
2547	warn "reloading resource files...\n";	3269	warn "reloading resource files...\n";
2548		3270
2549	reload_regions;	3271	reload_regions;
2550	reload_facedata;	3272	reload_facedata;
		3273	#reload_archetypes;#d#
2551	reload_archetypes;	3274	reload_archetypes;
2552	reload_treasures;	3275	reload_treasures;
2553		3276
2554	warn "finished reloading resource files\n";	3277	warn "finished reloading resource files\n";
2555	}	3278	}
2556		3279
2557	sub init {	3280	sub init {
2558	reload_resources;	3281	reload_resources;
2559	}	3282	}
2560		3283
2561	sub cfg_load {	3284	sub reload_config {
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3285	open my $fh, "<:utf8", "$CONFDIR/config"
2563	or return;	3286	or return;
2564		3287
2565	local $/;	3288	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;	3289	*CFG = YAML::Syck::Load <$fh>;
…		…
2582	sub main {	3305	sub main {
2583	# we must not ever block the main coroutine	3306	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3307	local $Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3308	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3309	(async {
		3310	$Coro::current->{desc} = "IDLE BUG HANDLER";
2587	Event::one_event;	3311	Event::one_event;
2588	})->prio (Coro::PRIO_MAX);	3312	})->prio (Coro::PRIO_MAX);
2589	};	3313	};
2590		3314
2591	cfg_load;	3315	reload_config;
2592	db_init;	3316	db_init;
2593	load_extensions;	3317	load_extensions;
2594		3318
2595	$TICK_WATCHER->start;	3319	$TICK_WATCHER->start;
2596	Event::loop;	3320	Event::loop;
…		…
2612	},	3336	},
2613	);	3337	);
2614	}	3338	}
2615	}	3339	}
2616		3340
		3341	sub write_runtime {
		3342	my $runtime = "$LOCALDIR/runtime";
		3343
		3344	# first touch the runtime file to show we are still running:
		3345	# the fsync below can take a very very long time.
		3346
		3347	IO::AIO::aio_utime $runtime, undef, undef;
		3348
		3349	my $guard = cf::lock_acquire "write_runtime";
		3350
		3351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3352	or return;
		3353
		3354	my $value = $cf::RUNTIME + 90 + 10;
		3355	# 10 is the runtime save interval, for a monotonic clock
		3356	# 60 allows for the watchdog to kill the server.
		3357
		3358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3359	and return;
		3360
		3361	# always fsync - this file is important
		3362	aio_fsync $fh
		3363	and return;
		3364
		3365	# touch it again to show we are up-to-date
		3366	aio_utime $fh, undef, undef;
		3367
		3368	close $fh
		3369	or return;
		3370
		3371	aio_rename "$runtime~", $runtime
		3372	and return;
		3373
		3374	warn "runtime file written.\n";
		3375
		3376	1
		3377	}
		3378
2617	sub emergency_save() {	3379	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3380	my $freeze_guard = cf::freeze_mainloop;
2619		3381
2620	warn "enter emergency perl save\n";	3382	warn "enter emergency perl save\n";
2621		3383
…		…
2625	# and maps saved/destroyed asynchronously.	3387	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3388	warn "begin emergency player save\n";
2627	for my $login (keys %cf::PLAYER) {	3389	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3390	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3391	$pl->valid or next;
		3392	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3393	$pl->save;
2631	}	3394	}
2632	warn "end emergency player save\n";	3395	warn "end emergency player save\n";
2633		3396
2634	warn "begin emergency map save\n";	3397	warn "begin emergency map save\n";
…		…
2682		3445
2683	warn "flushing outstanding aio requests";	3446	warn "flushing outstanding aio requests";
2684	for (;;) {	3447	for (;;) {
2685	BDB::flush;	3448	BDB::flush;
2686	IO::AIO::flush;	3449	IO::AIO::flush;
2687	Coro::cede;	3450	Coro::cede_notself;
2688	last unless IO::AIO::nreqs || BDB::nreqs;	3451	last unless IO::AIO::nreqs || BDB::nreqs;
2689	warn "iterate...";	3452	warn "iterate...";
2690	}	3453	}
2691		3454
2692	++$RELOAD;	3455	++$RELOAD;
…		…
2696	%EXT_CORO = ();	3459	%EXT_CORO = ();
2697		3460
2698	warn "removing commands";	3461	warn "removing commands";
2699	%COMMAND = ();	3462	%COMMAND = ();
2700		3463
2701	warn "removing ext commands";	3464	warn "removing ext/exti commands";
2702	%EXTCMD = ();	3465	%EXTCMD = ();
		3466	%EXTICMD = ();
2703		3467
2704	warn "unloading/nuking all extensions";	3468	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	3469	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	3470	warn "... unloading $pkg";
2707		3471
…		…
2750	warn "reloading cf.pm";	3514	warn "reloading cf.pm";
2751	require cf;	3515	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3516	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2753		3517
2754	warn "loading config and database again";	3518	warn "loading config and database again";
2755	cf::cfg_load;	3519	cf::reload_config;
2756		3520
2757	warn "loading extensions";	3521	warn "loading extensions";
2758	cf::load_extensions;	3522	cf::load_extensions;
2759		3523
2760	warn "reattaching attachments to objects/players";	3524	warn "reattaching attachments to objects/players";
…		…
2796	register_command "reload" => sub {	3560	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2798		3562
2799	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	3567	reload_perl;
		3568	};
2802	}	3569	}
2803	};	3570	};
2804		3571
2805	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2806		3573
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3606	unless ++$bug_warning > 10;
2840	return;	3607	return;
2841	}	3608	}
2842		3609
2843	$NOW = Event::time;	3610	$NOW = $tick_start = Event::time;
2844		3611
2845	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
2846		3613
2847	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3615	$NEXT_TICK += $TICK;
2849		3616
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	3618	$NEXT_RUNTIME_WRITE = $NOW + 10;
2852	Coro::async_pool {	3619	Coro::async_pool {
		3620	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	3621	write_runtime
2854	or warn "ERROR: unable to write runtime file: $!";	3622	or warn "ERROR: unable to write runtime file: $!";
2855	};	3623	};
2856	}	3624	}
2857		3625
2858	# my $AFTER = Event::time;	3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2859	# warn $AFTER - $NOW;#d#	3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$NOW = Event::time;
2860		3634
2861	# if we are delayed by four ticks or more, skip them all	3635	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3637
2864	$TICK_WATCHER->at ($NEXT_TICK);	3638	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3639	$TICK_WATCHER->start;
2866		3640
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3641	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3642	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3643
2874	_post_tick;	3644	_post_tick;
2875	},	3645	},
2876	);	3646	);
2877		3647
2878	{	3648	{
		3649	BDB::min_parallel 8;
2879	BDB::max_poll_time $TICK * 0.1;	3650	BDB::max_poll_time $TICK * 0.1;
2880	$BDB_POLL_WATCHER = Event->io (	3651	$BDB_POLL_WATCHER = Event->io (
2881	reentrant => 0,	3652	reentrant => 0,
2882	fd => BDB::poll_fileno,	3653	fd => BDB::poll_fileno,
2883	poll => 'r',	3654	poll => 'r',
2884	prio => 0,	3655	prio => 0,
2885	data => WF_AUTOCANCEL,	3656	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,	3657	cb => \&BDB::poll_cb,
2887	);	3658	);
2888	BDB::min_parallel 8;
2889		3659
2890	BDB::set_sync_prepare {	3660	BDB::set_sync_prepare {
2891	my $status;	3661	my $status;
2892	my $current = $Coro::current;	3662	my $current = $Coro::current;
2893	(	3663	(
…		…
2902	)	3672	)
2903	};	3673	};
2904		3674
2905	unless ($DB_ENV) {	3675	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	3676	$DB_ENV = BDB::db_env_create;
		3677	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3678	| BDB::LOG_AUTOREMOVE, 1);
		3679	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3680	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		3681
2908	cf::sync_job {	3682	cf::sync_job {
2909	eval {	3683	eval {
2910	BDB::db_env_open	3684	BDB::db_env_open
2911	$DB_ENV,	3685	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3687	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3688	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	3689	0666;
2916		3690
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3691	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2918
2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2920	$DB_ENV->set_lk_detect;
2921	};	3692	};
2922		3693
2923	cf::cleanup "db_env_open(db): $@" if $@;	3694	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	3695	};
2925	}	3696	}
		3697
		3698	$BDB_DEADLOCK_WATCHER = Event->timer (
		3699	after => 3,
		3700	interval => 1,
		3701	hard => 1,
		3702	prio => 0,
		3703	data => WF_AUTOCANCEL,
		3704	cb => sub {
		3705	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3706	},
		3707	);
		3708	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3709	after => 11,
		3710	interval => 60,
		3711	hard => 1,
		3712	prio => 0,
		3713	data => WF_AUTOCANCEL,
		3714	cb => sub {
		3715	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3716	},
		3717	);
		3718	$BDB_TRICKLE_WATCHER = Event->timer (
		3719	after => 5,
		3720	interval => 10,
		3721	hard => 1,
		3722	prio => 0,
		3723	data => WF_AUTOCANCEL,
		3724	cb => sub {
		3725	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3726	},
		3727	);
2926	}	3728	}
2927		3729
2928	{	3730	{
2929	IO::AIO::min_parallel 8;	3731	IO::AIO::min_parallel 8;
2930		3732
…		…
2933	$AIO_POLL_WATCHER = Event->io (	3735	$AIO_POLL_WATCHER = Event->io (
2934	reentrant => 0,	3736	reentrant => 0,
2935	data => WF_AUTOCANCEL,	3737	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,	3738	fd => IO::AIO::poll_fileno,
2937	poll => 'r',	3739	poll => 'r',
2938	prio => 6,	3740	prio => 0,
2939	cb => \&IO::AIO::poll_cb,	3741	cb => \&IO::AIO::poll_cb,
2940	);	3742	);
2941	}	3743	}
2942		3744
2943	my $_log_backtrace;	3745	my $_log_backtrace;
…		…
2949		3751
2950	# limit the # of concurrent backtraces	3752	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	3753	if ($_log_backtrace < 2) {
2952	++$_log_backtrace;	3754	++$_log_backtrace;
2953	async {	3755	async {
		3756	$Coro::current->{desc} = "abt $msg";
		3757
2954	my @bt = fork_call {	3758	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	3759	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3760	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3761	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	3762	or die "addr2line: $!";

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